Circular concrete formwork support system

Abstract

The utility model discloses a kind of circular concrete formwork support systems, it is related to concrete formwork support technical field, it includes: cylindrical concrete formwork, multiple fastening steel strips and reinforcing fastening steel are sleeved on cylindrical concrete formwork, both ends of fastening steel strip are rotatably connected with connecting plate, fastener is arranged between two connecting plates.The utility model is split into multiple sector plates by circular formwork, and unique splicing and reinforcing mode is used, without large mechanical artificial quick installation and removal is realized, construction cost and safety risk are greatly reduced, the staggered arrangement of its fastening steel strip and reinforcing steel, with adjustable fastener and anchoring end, not only ensure the stability of formwork in the process of concrete pouring, effectively prevent displacement and deformation, ensure the perpendicularity, roundness and forming quality of cylindrical structure, also through the design of standard assembly, improve the versatility and reusability of formwork.

Description

Technical Field

[0001] This utility model relates to the field of concrete formwork support technology, specifically a circular concrete formwork support system. Background Technology

[0002] Simply put, a circular concrete formwork is a temporary mold used to pour cylindrical concrete structures such as columns, bridge piers, and chimneys. It is usually made up of multiple curved steel or high-strength plastic formwork panels, which are bolted together to form a complete cylinder. During construction, this cylinder is fixed in place, and then concrete is poured into it. After the concrete has hardened and reached its strength, the formwork is removed, resulting in a smooth, precisely dimensional circular column.

[0003] In modern construction engineering, circular concrete structures such as equipment foundations, bridge piers, and columns are widely used. In traditional construction, steel formwork or integral wooden formwork systems are often used. The reinforcement methods of traditional systems are complex and require high skill from workers. During the concrete pouring process, the formwork is prone to displacement and deformation due to insufficient reinforcement, resulting in deviations in the verticality and roundness of the cylindrical structure, which affects the final structural quality and appearance. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and to provide a circular concrete formwork support system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A circular concrete formwork support system, comprising: A cylindrical concrete formwork, wherein multiple fastening steel bars and reinforcing steel bars are fitted on the cylindrical concrete formwork, and each end of the fastening steel bar is rotatably connected to a connecting plate, and a fastener is provided between two of the connecting plates.

[0006] One end of the reinforcing steel bar is fixedly connected to a connecting cylinder one, and the other end of the reinforcing steel bar is fixedly connected to an anchoring end. A connecting cylinder two is sleeved on the anchoring end. Baffles and fastening nuts are provided on opposite sides of the connecting cylinder one and the connecting cylinder two.

[0007] As a preferred embodiment of this utility model, the cylindrical concrete formwork is composed of three uniformly sized formwork pieces spliced ​​together. Each formwork piece has a center of 120°, a fan-shaped circumference of approximately πd / 3 = 1.675m, a height of 3.25m, and a thickness of 2cm. Each formwork piece has a 5cm overlapping interlocking part on both sides.

[0008] In a preferred embodiment of this utility model, the plurality of fastening steel bars and reinforcing steel bars are staggered, with the reinforcing steel bars placed between two adjacent fastening steel bars.

[0009] In a preferred embodiment of this utility model, the fastener includes a fixing screw that is threaded through the two connecting plates, and a fixing nut is threadedly connected to one end of the fixing screw.

[0010] In a preferred embodiment of the present invention, one end of the anchoring end movably penetrates the inner cavity of the connecting cylinder and extends to the other side thereon.

[0011] In a preferred embodiment of this utility model, the baffle is movably sleeved on the anchoring end, and the fastening nut is threadedly connected to the anchoring end.

[0012] In a preferred embodiment of this utility model, four diagonal steel pipes are fixedly connected to the outer wall of the top fastening steel bar. The support points of the four diagonal steel pipes are at 90° to each other, the inclination angle is 60°, and the ends are fixed by inserting steel bars into the ground for positioning.

[0013] This utility model provides a circular concrete formwork support system. By disassembling the circular formwork into multiple sector-shaped panels and employing a unique splicing and reinforcement method, it achieves rapid manual installation and dismantling without the need for large machinery, significantly reducing construction costs and safety risks. The staggered arrangement of its fastening steel bars and reinforcing bars, combined with adjustable fasteners and anchoring ends, not only ensures the stability of the formwork during concrete pouring, effectively preventing displacement and deformation, and guaranteeing the verticality, roundness, and forming quality of the cylindrical structure, but also improves the versatility and reusability of the formwork through standardized component design, significantly enhancing construction efficiency and economic benefits. It is particularly suitable for engineering projects with tight schedules and limited space. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A magnified view of point A in the middle; Figure 3 for Figure 1 A magnified view of point B in the middle; Figure 4 This is a top view of the structure of this utility model.

[0016] In the diagram: 1. Cylindrical concrete formwork; 2. Fastening steel bar; 3. Reinforcing steel bar; 4. Connecting plate; 5. Fastener; 51. Fixing screw; 52. Fixing nut; 6. Connecting cylinder one; 7. Connecting cylinder two; 8. Baffle; 9. Fastening nut; 10. Diagonal bracing steel pipe; 11. Anchoring end. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 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 should fall within the protection scope of the present invention.

[0018] like Figures 1 to 4 As shown, a circular concrete formwork support system includes a cylindrical concrete formwork 1. It features a modular design, is lightweight, and facilitates manual handling and assembly. The cylindrical concrete formwork 1 is composed of three uniformly sized formwork panels, each with a center angle of 120°, a fan-shaped circumference of approximately πd / 3 = 1.675m, a height of 3.25m, and a thickness of 2cm. Each formwork panel has a 5cm overlap on both sides. Multiple fastening steel bars 2 and reinforcing steel bars 3 are fitted onto the cylindrical concrete formwork 1. The fastening steel bars 2 provide strong circumferential restraint, resisting the lateral pressure generated during concrete pouring, preventing formwork bulging and deformation, and facilitating installation and disassembly. The reinforcing steel bars... The reinforcing bar 3 further enhances the overall rigidity and stability of the formwork system, especially in the area between the two main stirrups, effectively dispersing and transmitting the lateral pressure of the concrete and preventing local deformation. Multiple fastening steel bars 2 and reinforcing steel bars 3 are staggered, with the reinforcing steel bars 3 placed between two adjacent fastening steel bars 2. Both ends of the fastening steel bars 2 are rotatably connected to connecting plates 4. The rotatable connection design facilitates angle adjustment during installation, ensuring that the fasteners 5 can be smoothly inserted and a uniform preload applied. Fasteners 5 are set between the two connecting plates 4. By tightening or loosening, the clamping force of the fastening steel bars 2 can be precisely controlled, ensuring that the formwork remains round and stable throughout the construction process.

[0019] One end of the reinforcing steel bar 3 is fixedly connected to a connecting cylinder 6, and the other end of the reinforcing steel bar 3 is fixedly connected to an anchoring end 11, which is threaded and is the "backbone" of the entire reinforcing steel bar 3 system. It passes through the connecting cylinder 6 and engages with the fastening nut 9 through its threads, connecting all components into a whole that can apply and withstand huge tensile forces. It is the key to achieving precise adjustment and reliable locking. One end of the anchoring end 11 moves through the inner cavity of the connecting cylinder 6 and extends to the other side. A connecting cylinder 7 is sleeved on the anchoring end 11. Baffles 8 and fastening nuts 9 are provided on the opposite sides of the connecting cylinders 6 and 7. The baffles 8 increase the force-bearing area and evenly transmit the locking force of the fastening nuts 9 to the connecting cylinders 6 and 7. The baffles 8 are movably sleeved on the anchoring end 11, and the fastening nuts 9 are threadedly connected to the anchoring end 11.

[0020] The fastener 5 includes a fixing screw 51 that is threaded through the two connecting plates 4. By cooperating with the fixing nut 52, the length of the fastening steel bar 2 can be finely adjusted, thereby applying and locking the required clamping force. One end of the fixing screw 51 is threadedly connected to the fixing nut 52.

[0021] Four diagonal steel pipes 10 are fixedly connected to the outer wall of the top fastening steel bar 2 to resist the overturning moment of the template as a whole and ensure the verticality and stability of the template during construction. The support points of the four diagonal steel pipes 10 are at 90° to each other and at an angle of 60°. The ends are fixed by inserting steel bars into the ground for positioning.

[0022] The usage process of the circular concrete formwork support system described in this embodiment is as follows: First, the cylindrical concrete formwork 1, composed of three uniformly sized templates, is manually assembled. Utilizing its modular design and lightweight nature, assembly can be completed without large machinery. Then, multiple staggered fastening steel bars 2 and reinforcing steel bars 3 are fitted onto the cylindrical concrete formwork 1. The connecting plates 4, rotatably connected at both ends of the fastening steel bars 2, allow for easy insertion of fasteners 5 by adjusting their angle. Tightening the fixing nuts 52 finely adjusts the length of the fastening steel bars 2 to apply and lock the clamping force, providing strong circumferential restraint to the formwork and resisting the lateral pressure of concrete pouring to prevent bulging and deformation. Simultaneously, a connecting sleeve 6 fixed at one end of the reinforcing steel bar 3 mates with a threaded anchor end 11 fixed at the other end. A connecting sleeve 7 is fitted onto the anchor end 11, connecting... The baffle 8, which is movably sleeved on the opposite side of the first cylinder 6 and the connecting cylinder 2 7 and is attached to the anchor end 11, works in conjunction with the threaded fastening nut 9 to connect the components into a whole that can withstand huge tensile forces, further enhancing the overall rigidity and stability of the formwork system. It effectively disperses and transmits the lateral pressure of the concrete in the area between the two main hoops to prevent local deformation. In addition, the four diagonal bracing steel pipes 10 fixedly connected to the outer wall of the top fastening steel bar 2 resist the overall overturning moment of the formwork, ensuring the verticality and stability of the formwork during construction. Finally, through the synergistic action of the components, the formwork can be quickly installed and dismantled manually, ensuring that the formwork is stable and free from displacement and deformation during concrete pouring, guaranteeing the verticality, roundness and forming quality of the cylindrical structure. Furthermore, the standardized components improve the versatility and reusability of the formwork, making it suitable for engineering projects with tight schedules and limited space.

[0023] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A circular concrete formwork support system, characterised in that, include: A cylindrical concrete formwork (1) is provided with multiple fastening steel bars (2) and reinforcing steel bars (3) on the cylindrical concrete formwork (1). Both ends of the fastening steel bars (2) are rotatably connected to connecting plates (4), and fasteners (5) are provided between the two connecting plates (4). One end of the reinforcing steel bar (3) is fixedly connected to a connecting cylinder (6), and the other end of the reinforcing steel bar (3) is fixedly connected to an anchor end (11). A connecting cylinder (7) is sleeved on the anchor end (11). A baffle (8) and a fastening nut (9) are provided on the opposite sides of the connecting cylinder (6) and the connecting cylinder (7).

2. The circular concrete formwork support system according to claim 1, wherein, The cylindrical concrete formwork (1) is composed of three uniformly sized formwork pieces spliced ​​together. Each formwork piece has a center of 120°, a fan-shaped circumference of approximately πd / 3 = 1.675m, a height of 3.25m, and a thickness of 2cm. Each formwork piece has a 5cm overlapping interlocking part on both sides.

3. The circular concrete formwork support system according to claim 1, wherein, The multiple fastening steel bars (2) and reinforcing steel bars (3) are staggered, with the reinforcing steel bars (3) placed between two adjacent fastening steel bars (2).

4. The circular concrete formwork support system according to claim 1, wherein, The fastener (5) includes a fixing screw (51) threaded through the two connecting plates (4), and a fixing nut (52) is threaded to one end of the fixing screw (51).

5. The circular concrete formwork support system according to claim 1, wherein, One end of the anchoring end (11) movably penetrates the inner cavity of the connecting cylinder (6) and extends to the other side thereon.

6. The circular concrete formwork support system according to claim 1, wherein, The baffle (8) is movably sleeved on the anchor end (11), and the fastening nut (9) is threadedly connected to the anchor end (11).

7. The circular concrete formwork support system according to claim 1, wherein, Four diagonal steel pipes (10) are fixedly connected to the outer wall of the top fastening steel bar (2). The four diagonal steel pipes (10) support points are at 90° to each other and the inclination angle is 60°. The ends are fixed by inserting steel bars into the ground for positioning.

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