A concrete tower section rapid assembly formwork structure

The modular design of the concrete tower rapid assembly formwork structure enables quick connection and disassembly, improving construction efficiency and safety. It adapts to the needs of tower components of different heights and diameters, solving the problems of cumbersome construction and safety hazards associated with traditional formwork structures.

CN224579047UActive Publication Date: 2026-07-31POWERCHINA HUADONG ENG CORP LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
POWERCHINA HUADONG ENG CORP LTD
Filing Date
2025-09-05
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Traditional concrete tower formwork structures are cumbersome to construct, labor-intensive, and pose numerous safety hazards. Furthermore, they have a low degree of mechanization, making it difficult to meet the demands of rapid construction of modern wind turbine towers.

Method used

A rapid assembly formwork structure for concrete towers is designed. It adopts a modular design and achieves rapid connection and disassembly through precise positioning of the shell and mating rings and stabilizing components, thereby improving construction efficiency and safety.

Benefits of technology

It improves the ease of transportation, on-site assembly efficiency, and construction safety of the template structure, ensures molding quality and stability, and adapts to the needs of tower components of different heights and diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of concrete tower technology, specifically to a rapid-assembly formwork structure for concrete towers. It includes an outer shell and a mating ring installed inside the shell. The outer wall of the shell has at least two fixing holes located on the upper side of the mating ring. The lower end of the mating ring extends to the lower side of the shell, and the lower end of the mating ring has the same number of through holes as the fixing holes, which coincide vertically with the fixing holes. At least two positioning posts are provided at the top of the mating ring, distributed around its central axis. The bottom end of the mating ring has the same number of positioning posts, which coincide vertically with the positioning grooves. This utility model adopts a modular design. After two formwork structures are assembled, their contact surfaces fit tightly together. Bolts and other fasteners are installed in the fixing holes and through holes, ensuring a firm connection between the two formwork structures and significantly improving the assembly efficiency and reusability of the formwork structure.
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Description

Technical Field

[0001] This utility model relates to the field of concrete tower technology, specifically to a rapid assembly template structure for concrete towers. Background Technology

[0002] With the continuous development of wind power generation technology, higher requirements have been placed on the construction efficiency and quality of wind turbine tower structures. Traditional concrete tower formwork uses prefabricated steel or wooden formwork systems, which typically require numerous supporting structures and connectors. This results in a cumbersome construction process, high labor intensity, long construction periods, and significant safety hazards during high-altitude operations. Furthermore, traditional formwork systems often require extensive manual labor during assembly and disassembly, resulting in low mechanization. This not only affects construction efficiency but also increases the risk of quality problems such as formwork misalignment and grout leakage due to improper operation, ultimately impacting the overall molding effect and structural safety of the concrete tower. Therefore, the industry urgently needs a more efficient formwork structure that can be quickly assembled and disassembled, and is convenient for high-altitude operations to meet the construction needs of rapid construction of modern wind turbine towers.

[0003] To address this, in recent years some enterprises and research institutions have attempted to improve traditional formwork structures, such as by adopting modular formwork units, slipform technology, and hydraulic lifting systems, to enhance construction efficiency and formwork forming quality. However, existing solutions often suffer from structural complexity, high cost, and poor adaptability, making them unsuitable for widespread application in tower components with frequently varying heights and diameters, thus limiting their promotion and use. Especially with the wind power industry gradually moving towards high-power, ultra-high towers, traditional formwork systems are finding it increasingly difficult to meet engineering needs in terms of transportation convenience, on-site assembly efficiency, and construction safety.

[0004] In view of the above, in order to overcome the above technical problems, this utility model designs a rapid assembly formwork structure for concrete towers, which solves the above technical problems. Utility Model Content

[0005] The technical objective of this invention is to design a rapid assembly formwork structure for concrete towers, thereby improving transportation convenience, on-site assembly efficiency, and construction safety.

[0006] To achieve the above-mentioned technical objectives, this utility model provides the following technical solution: A quick-assembly formwork structure for concrete towers includes an outer shell and a mating ring installed inside the outer shell. The central axis of the outer shell coincides with the central axis of the mating ring. The outer wall of the outer shell is provided with at least two fixing holes distributed around the central axis of the outer shell. The fixing holes are located on the upper side of the mating ring. The lower end of the mating ring extends to the lower side of the outer shell. The lower end of the mating ring is provided with the same number of through holes as the fixing holes. The through holes coincide with the fixing holes in the vertical direction. The top of the mating ring is provided with at least two positioning posts distributed around the central axis of the mating ring. The bottom of the mating ring is provided with the same number of positioning posts and the same number of positioning grooves that coincide in the vertical direction.

[0007] Preferably, the number of fixing holes and through holes is set to 3-6.

[0008] Preferably, the top edge of the positioning post is rounded.

[0009] Preferably, a stabilizing component is installed inside the mating ring. The stabilizing component includes a central block located inside the mating ring, the central axis of the central block coincides with the central axis of the mating ring, a support column connected to the inner wall of the mating ring is provided on the outer wall of the central block, an installation cavity is provided at the upper end of the central block, a support and buffer component is installed in the installation cavity, a connecting column and a stabilizing block located at the bottom of the connecting column are provided at the lower end of the central block, and the outer diameter of the stabilizing block is smaller than the inner diameter of the installation cavity.

[0010] Preferably, the support and buffer assembly includes at least two stabilizing plates located within the mounting cavity, with stabilizing springs installed between the outer ends of the stabilizing plates and the inner wall of the mounting cavity.

[0011] Preferably, the stabilizing plates are distributed around the central axis of the central block, and the central axis of the stabilizing blocks coincides with the central axis of the central block.

[0012] Preferably, the stabilizing plate has an arc-shaped structure, and the stabilizing block is cylindrical, with the inner diameter of the stabilizing plate being the same as the outer diameter of the stabilizing block. The beneficial effects of this utility model are as follows: 1. This utility model adopts a modular design. After the two template structures are combined, the mating ring of the upper template structure is inserted into the shell of the lower template structure. The contact surfaces between the two template structures fit tightly. The fixing holes of the upper template structure correspond to the through holes of the lower template structure. Bolts and other fasteners are installed on the fixing holes and through holes to firmly connect the two template structures. In addition, the positioning pin of the lower template structure is inserted into the positioning groove of the upper template structure to cooperate, so that the two template structures can be quickly positioned during assembly, which greatly improves the assembly efficiency and reusability of the template structures.

[0013] 2. The outer shell and mating ring of this utility model are both designed in a circular shape to adapt to the circular structure of the tower. At the same time, it has the function of stacking the upper and lower parts, which can meet the needs of different construction heights, significantly reduce manual operation time, and improve the standardization and mechanization level of the construction site.

[0014] 3. In this utility model, when the two template structures are assembled together, the stabilizing plate of the lower template structure will cover the outside of the stabilizing block of the upper template structure, effectively improving the overall structure's seismic resistance and anti-displacement ability, ensuring the stability and safety of the template structure during construction at high altitudes or in complex environments. In addition, the arc-shaped stabilizing plate and the stabilizing block are of equal diameter, improving sealing and positioning accuracy, making template assembly smoother, and facilitating concrete molding quality and subsequent demolding operations. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] The above and other aspects of the present invention will now be described by way of example only, with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of the present invention after multiple template structures are assembled together; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a bottom view of the present invention; Figure 4 This is a schematic diagram of the internal structure of this utility model; Figure 5 This is a cross-sectional schematic diagram of the present invention.

[0017] In the diagram: 1. Outer shell; 2. Mating ring; 3. Fixing hole; 4. Through hole; 5. Positioning post; 6. Positioning groove; 10. Support post; 11. Center block; 12. Mounting cavity; 13. Connecting post; 14. Stabilizing block; 15. Stabilizing spring; 16. Stabilizing plate. Detailed Implementation

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0019] like Figure 1-5As shown, a quick-assembly formwork structure for a concrete tower includes an outer shell 1 and a mating ring 2 installed inside the outer shell 1. The central axis of the outer shell 1 coincides with the central axis of the mating ring 2. The outer wall of the outer shell 1 is provided with at least two fixing holes 3 distributed around the central axis of the outer shell 1. The fixing holes 3 are located on the upper side of the mating ring 2. The lower end of the mating ring 2 extends to the lower side of the outer shell 1, and the lower end of the mating ring 2 is provided with the same number of through holes 4 as the fixing holes 3. The through holes 4 coincide with the fixing holes 3 in the vertical direction. The top of the mating ring 2 is provided with at least two positioning posts 5 distributed around the central axis of the mating ring 2, and the bottom end of the mating ring 2 is provided with the same number of positioning posts 5 and coincides with the positioning grooves in the vertical direction.

[0020] The outer shell 1 and the mating ring 2 constitute the main structure of the template structure. The template structure is a ring structure, which is adapted to the outer circular structure of the concrete tower. It can tightly cover the tower base for molding construction. The outer shell 1 is installed above the tower base to provide the template support foundation.

[0021] After the two template structures are combined, the mating ring 2 of the upper template structure is inserted into the outer shell 1 of the lower template structure. The fixing holes 3 of the upper template structure correspond to the through holes 4 of the lower template structure. By installing bolts and other fasteners on the corresponding fixing holes 3 and through holes 4, the two template structures can be assembled together. This method has the advantages of quick connection and disassembly, improving the overall installation efficiency of the template. In addition, the bolts can be replaced with positioning pins, which also have the function of fixed connection. This installation method has a stable connection effect and vibration resistance, enhancing the overall rigidity of the template structure and construction safety.

[0022] The number of fixing holes 3 and through holes 4 is set to 3-6, with the preferred number being 3. The fixing holes 3 and through holes 4 can not only be used to insert connecting components such as bolts or positioning pins, but can also be left empty during assembly for grouting inspection operations, thereby enhancing the flexibility and operability of the construction process.

[0023] In addition, during the assembly of the two template structures, the positioning post 5 of the lower template structure is inserted into the positioning groove 6 of the upper template structure, which can achieve precise positioning and stable connection during the assembly of the template structures and prevent the two template structures from being misaligned.

[0024] This template structure is highly modular, allowing for stacking and flexible combination to meet the construction needs of concrete towers at different height stages, significantly improving construction efficiency and template reuse rate.

[0025] The top edge of the positioning post 5 is rounded, which effectively avoids scratches or jamming during assembly. It also improves the guidance and smoothness of the template structure during assembly, enhancing positioning accuracy and ease of operation. Each positioning post 5 has a vertically overlapping positioning groove 6. The positioning posts 5 and positioning grooves 6 are matched one-to-one, ensuring accurate alignment and a secure connection between the upper and lower templates through precise fitting. This improves the stability and reusability of the entire template structure, guaranteeing the quality of template forming during construction.

[0026] After the two template structures are assembled together, the outer shells 1 and mating rings 2 of the two template structures fit tightly together. The mating ring 2 of the upper template structure is inserted into the outer shell 1 of the lower template structure, achieving a precise and tight fit. This ensures that the two outer shells 1 form a complete and seamless interlocking structure during assembly. This design effectively improves the overall stability and anti-displacement capability of the template structure after connection, avoiding construction errors caused by loosening or misalignment. At the same time, it facilitates subsequent disassembly and reuse of the template structure, exhibiting good structural versatility and construction adaptability.

[0027] A stabilizing component is installed within the mating ring 2 to enhance the overall connection strength and anti-interference capability. The stabilizing component includes a central block 11 located inside the mating ring 2, with its central axis coinciding with the central axis of the mating ring 2. Three to five support columns 10, connected to the inner wall of the mating ring 2, are provided on the outer wall of the central block 11 and distributed around the central axis of the mating ring 2. A mounting cavity 12 is provided at the upper end of the central block 11, within which a supporting buffer assembly is installed. A connecting column 13 and a stabilizing block 14 located at the bottom of the connecting column 13 are provided at the lower end of the central block 11. The outer diameter of the stabilizing block 14 is smaller than the inner diameter of the mounting cavity 12. The supporting buffer assembly includes at least two stabilizing plates 16 located within the mounting cavity 12, with stabilizing springs 15 installed between the outer ends of the stabilizing plates 16 and the inner wall of the mounting cavity 12.

[0028] Support columns 10 form the internal skeleton support system of the formwork structure, used to improve the overall structural rigidity and load-bearing capacity of the formwork structure. The number of support columns 10 is preferably set to three, distributed at equal intervals, which ensures uniform stress distribution while facilitating the symmetrical installation and stress coordination of subsequent components. The central block 11 connects the core to the upper and lower components, improving the overall stability of the structure. The mounting cavity 12 is located at the upper end of the central block 11 to accommodate and position the stabilizing spring 15, providing sufficient space for the stabilizing spring 15 to move under pressure. The connecting columns 13 and the stabilizing block 14 resist external interference during the assembly or use of the formwork structure, preventing structural swaying. The stabilizing spring 15 provides flexible support and cushioning, enhancing seismic resistance and adaptability. The stabilizing plate 16 acts as a seal, compress, and stabilizer, forming a closed support unit with elastic cushioning performance, effectively improving the safety and service life of the formwork.

[0029] The central block 11 is located on the central axis of the outer shell 1 structure. The geometric center of the central block 11 coincides with the center of the outer shell 1 as a whole, ensuring that the entire template structure maintains balance and symmetry during stress and installation, thus improving stability and accuracy. The connecting column 13 is installed vertically directly below the central block 11 and extends along the central axis to the stabilizing block 14 below, achieving effective transmission of the central force. The stabilizing block 14 is aligned with the axis of the connecting column 13, ensuring that it does not shift during template assembly and use, enhancing the overall stability of the template in the vertical direction, and contributing to improved installation accuracy and seismic resistance.

[0030] Stabilizing plates 16 are distributed around the central axis of the central block 11, and the central axis of the stabilizing block 14 coincides with the central axis of the central block 11. The stabilizing plates 16 have an arc-shaped structure, which better conforms to the curved shape of the template shell 1, enhancing the tightness and connection stability between structures. The stabilizing blocks 14 are cylindrical, and the inner diameter of the stabilizing plates 16 is the same as the outer diameter of the stabilizing blocks 14, allowing the stabilizing blocks 14 to be tightly embedded inside the stabilizing plates 16 during installation, preventing loosening or displacement. This equal-diameter fit design not only improves the overall stability and impact resistance of the template structure during use, but also facilitates on-site assembly and disassembly, improving construction efficiency.

[0031] In the process of working, the staff fixes the outer shell 1 of one template structure to the base, and then installs the outer shell 1 of another template structure on top of the outer shell 1 of the first template structure. The two template structures are combined vertically. The mating ring 2 of the upper template structure is inserted into the outer shell 1 of the lower template structure. The fixing hole 3 of the upper template structure corresponds to the through hole 4 of the lower template structure. Bolts and other fasteners are installed on the fixing hole 3 and the through hole 4 to connect the outer shell 1 of the two template structures together. During the assembly of the two template structures, the stabilizing block 14 of the upper template structure is placed into the installation cavity 12 of the lower template structure. The stabilizing block 14 of the upper template structure is clamped and fixed by the stabilizing plate 16 of the lower template structure. The stabilizing spring 15 acts as a buffer for the stabilizing plate 16, thereby improving the stability of the concrete tower.

[0032] Various modifications to this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein. Although one or more exemplary embodiments of this disclosure have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the appended claims.

Claims

1. A quick assembly formwork structure for a concrete tower section, characterised in that, The device includes a housing (1) and a mating ring (2) installed inside the housing (1). The central axis of the housing (1) coincides with the central axis of the mating ring (2). The outer wall of the housing (1) is provided with at least two fixing holes (3) distributed around the central axis of the housing (1). The fixing holes (3) are located on the upper side of the mating ring (2). The lower end of the mating ring (2) extends to the lower side of the housing (1). The lower end of the mating ring (2) is provided with the same number of through holes (4) as the fixing holes (3). The through holes (4) coincide with the fixing holes (3) in the vertical direction. The top of the mating ring (2) is provided with at least two positioning pins (5) distributed around the central axis of the mating ring (2). The bottom of the mating ring (2) is provided with the same number of positioning pins (5) and coincides with the positioning grooves (6) in the vertical direction.

2. A quick assembly formwork structure for a concrete tower section according to claim 1, wherein: The number of fixing holes (3) and through holes (4) is set to 3-6.

3. A quick assembly formwork structure for a concrete tower section according to claim 1, wherein: The top edge of the positioning post (5) is rounded.

4. A quick assembly formwork structure for a concrete tower section according to claim 1, wherein: A stabilizing component is installed inside the mating ring (2). The stabilizing component includes a central block (11) located inside the mating ring (2). The central axis of the central block (11) coincides with the central axis of the mating ring (2). A support column (10) connected to the inner wall of the mating ring (2) is provided on the outer wall of the central block (11). An installation cavity (12) is provided at the upper end of the central block (11). A support buffer component is installed inside the installation cavity (12). A connecting column (13) and a stabilizing block (14) located at the bottom of the connecting column (13) are provided at the lower end of the central block (11). The outer diameter of the stabilizing block (14) is smaller than the inner diameter of the installation cavity (12).

5. A quick assembly formwork structure for a concrete tower section according to claim 4, wherein: The support and buffer assembly includes at least two stabilizing plates (16) located in the mounting cavity (12), and a stabilizing spring (15) is installed between the outer end of the stabilizing plate (16) and the inner wall of the mounting cavity (12).

6. A quick assembly formwork structure for a concrete tower section according to claim 5 wherein: The stabilizing plate (16) is distributed around the central axis of the central block (11), and the central axis of the stabilizing block (14) coincides with the central axis of the central block (11).

7. A quick assembly formwork structure for a concrete tower section according to claim 6, wherein: The stabilizing plate (16) has an arc-shaped structure, and the stabilizing block (14) is cylindrical. The inner diameter of the stabilizing plate (16) is the same as the outer diameter of the stabilizing block (14).