Steel formwork facilitating demolding in concrete engineering construction
The modular design of the connection device solves the problems of complex steel formwork structure and difficult maintenance, and realizes convenient installation, stable connection and efficient dismantling, thus extending the service life.
Patent Information
- Application Number
- CN202520555004.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Existing steel formwork has a complex internal structure with too many parts, which increases cost and weight, makes it inconvenient to transport and use, and the parts are integrated, making them difficult to inspect and maintain, thus affecting service life.
The modular design of the connection device, including the bracket, screw, threaded sleeve and magnet, simplifies the installation process, improves connection stability, reduces production costs, and facilitates transportation and parts replacement.
It simplifies the installation process of steel formwork, reduces the difficulty and cost of operation, improves the efficiency and lifespan of use, ensures the quality of concrete pouring, and facilitates dismantling and maintenance.
Smart Images

Figure CN223937625U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel formwork technology, and in particular to a steel formwork that facilitates demolding during concrete construction. Background Technology
[0002] Concrete construction is a crucial part of building construction, encompassing a series of operations from raw material preparation to molding and curing. During construction, steel formwork is widely used because of its advantages such as high strength, high rigidity, convenient assembly, and reusability. It can provide stable and precise molds for concrete pouring, ensuring the quality of concrete molding.
[0003] Existing technologies, such as patent CN117552622A, disclose a steel formwork for easy demolding of building concrete construction. This application sets multiple nuts and columns on the inner end walls of the two sides of the outer frame, which are symmetrical, and slides the first movable block, which is fixedly connected to the first screw, in the prismatic cavity opened in the column. It is connected by a belt transmission assembly between two adjacent columns on the same side, as well as the first bevel gear and the second bevel gear, and the meshing of the first gear and the second gear.
[0004] Currently, most existing steel formwork has a complex internal structure with too many parts, which increases the cost and weight of the steel formwork and makes it inconvenient to transport and use. At the same time, the parts on the steel formwork are integrated structures, making it difficult to repair and maintain them in a timely manner when parts malfunction, thus affecting the service life of the steel formwork. These issues need to be addressed. Utility Model Content
[0005] The purpose of this utility model is to solve the problems of existing steel formwork, which have complex internal structures and too many parts, thus increasing the cost and weight of the steel formwork and making it inconvenient to transport and use. At the same time, the parts on the steel formwork are integrated structures, making it difficult to repair and maintain them in a timely manner when parts malfunction, thus affecting the service life of the steel formwork. Therefore, this utility model proposes a steel formwork that facilitates demolding in concrete engineering construction.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a steel formwork for easy demolding in concrete construction, comprising a formwork body, a frame installed on the surface of the formwork body, a reinforcing rod fixedly connected to the side of the formwork body near the frame, one end of the reinforcing rod being fixedly connected to the inner wall of the frame, a connecting device provided on the surface of the formwork body, the connecting device including a clip, the clip fastening to the frame, a connecting hole opened on the surface of the frame, a screw inserted into the connecting hole, a positioning block fixedly connected to one end of the screw, a limiting groove opened on the surface of the clip, one end of the positioning block being inserted into the limiting groove, a stabilizing groove opened on the surface of the clip, and one end of the screw penetrating through... The stabilizing groove has a threaded sleeve threaded to the end of the screw furthest from the positioning block. An auxiliary device is provided on the surface of the frame. During the initial installation of the template body, a magnet is used to attract the frame, assisting construction personnel in quickly and accurately placing the clips. Simultaneously, the positioning block and the limiting groove cooperate to prevent the screw from rotating, simplifying the installation process, reducing operational difficulty, improving installation efficiency, and saving construction time and labor costs. The connecting device achieves a firm connection between the template and other components through the tight cooperation of the screw, threaded sleeve, and clips. Furthermore, the connecting parts in this solution are mostly modularly designed, resulting in low production costs, small space occupation, easy transportation, and easy recycling. In case of failure, they can be replaced, extending the service life of the steel template.
[0007] Preferably, the surface of the card holder is provided with a storage groove, the storage groove is connected to the stabilizing groove, and one end of the threaded sleeve is inserted into the storage groove.
[0008] Preferably, the cross-section of the storage slot is circular, and the threaded sleeve is adapted to the storage slot. The threaded sleeve is inserted into the storage slot during rotation to further position the card holder.
[0009] Preferably, the positioning block is a rectangular block, and the positioning block is adapted to the limiting groove to prevent the screw from rotating when the template body is installed.
[0010] Preferably, a handle is fixedly connected to one side of the card holder, and a magnet is fixedly connected to the inner wall of the card holder. The magnet is magnetically attracted to the frame, which improves the operating efficiency of construction personnel.
[0011] Preferably, the auxiliary device includes a positioning plate located on one side of the frame. A locking rod is fixedly connected to one side of the positioning plate, and one end of the locking rod is fastened to the frame. A screw hole is formed on the surface of the positioning plate, and a fastening bolt is threaded into the screw hole. Positioning grooves are formed at the four corners of the frame, and one end of the fastening bolt is threaded into the positioning groove. The auxiliary device, using the locking rod and the fastening bolt, further enhances the connection stability between multiple template bodies and between the template and other structures, effectively preventing the template from shifting during concrete pouring, providing a reliable guarantee for the smooth progress of concrete pouring construction, and ensuring that the concrete pouring quality reaches a high standard.
[0012] Preferably, there are four clamping rods, which are mirror images of each other. The longitudinal section of the positioning groove is a quarter circle, and the inner wall of the positioning groove is threaded. During the demolding stage, the clamping frame, screws, and positioning plate can be easily removed by simply loosening the fastening bolts and threaded sleeves, which facilitates the quick and easy demolding of the template. This not only improves the turnover efficiency of the template and reduces template wear, but also facilitates the maintenance and upkeep of the template and extends its service life.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, during the initial installation of the template body, magnets are used to attract the frame, assisting construction personnel in quickly and accurately placing the card holder. At the same time, the positioning block and the limiting groove cooperate to prevent the screw from rotating, simplifying the installation process, reducing the difficulty of operation, improving installation efficiency, and saving construction time and labor costs. The connecting device achieves a firm connection between the template and other components through the tight cooperation of the screw, threaded sleeve and card holder. In addition, the connecting parts of this solution are mostly modularly designed, with low production costs, small space occupation, and easy transportation. They are also easy to recycle and reuse. In case of failure, they can be replaced, thus improving the service life of the steel template.
[0015] 2. In this utility model, the auxiliary device uses clamps and fastening bolts to further enhance the connection stability between multiple template bodies and between the template and other structures, effectively preventing the template from shifting during concrete pouring, providing a reliable guarantee for the smooth progress of concrete pouring construction, and ensuring that the concrete pouring quality reaches a high standard.
[0016] 3. In this utility model, during the demolding stage, the clamps, screws and positioning plates can be easily removed by simply loosening the fastening bolts and threaded sleeves, which can conveniently and quickly complete the template removal work. This not only improves the turnover efficiency of the template and reduces template wear, but also facilitates the maintenance and upkeep of the template and extends its service life. Attached Figure Description
[0017] Figure 1This utility model provides a three-dimensional structural diagram of a steel formwork that facilitates demolding during concrete construction.
[0018] Figure 2 This utility model provides an exploded structural diagram of a steel formwork that facilitates demolding during concrete construction.
[0019] Figure 3 This utility model proposes a steel formwork that facilitates demolding during concrete construction. Figure 2 A schematic diagram of the structure at point A;
[0020] Figure 4 This utility model provides a partially exploded structural diagram of a steel formwork that facilitates demolding during concrete construction.
[0021] Figure 5 This utility model proposes a steel formwork that facilitates demolding during concrete construction. Figure 4 A schematic diagram of the structure viewed from below.
[0022] Legend:
[0023] 1. Template body; 2. Frame; 3. Reinforcing rod; 4. Connecting device; 41. Card holder; 42. Connecting hole; 43. Threaded sleeve; 44. Handle; 45. Limiting groove; 46. Magnet; 47. Positioning block; 48. Screw; 49. Stabilizing groove; 410. Storage groove; 5. Auxiliary device; 51. Positioning plate; 52. Card rod; 53. Fastening bolt; 54. Positioning groove; 55. Screw hole. Detailed Implementation
[0024] Please see Figures 1-5This utility model provides a technical solution: a steel formwork for easy demolding in concrete construction, comprising a formwork body 1, a frame 2 installed on the surface of the formwork body 1, a reinforcing rod 3 fixedly connected to the side of the formwork body 1 near the frame 2, one end of the reinforcing rod 3 fixedly connected to the inner wall of the frame 2, a connecting device 4 provided on the surface of the formwork body 1, the connecting device 4 including a clip 41, the clip 41 fastening to the frame 2, a connecting hole 42 opened on the surface of the frame 2, a screw 48 inserted into the connecting hole 42, a positioning block 47 fixedly connected to one end of the screw 48, a limiting groove 45 opened on the surface of the clip 41, one end of the positioning block 47 inserted into the limiting groove 45, a stabilizing groove 49 opened on the surface of the clip 41, one end of the screw 48 penetrating through the stabilizing groove 49, and the screw 48... The end of the frame 2 away from the positioning block 47 is threadedly connected to a threaded sleeve 43. An auxiliary device 5 is provided on the surface of the frame 2. During the initial installation of the template body 1, the magnet 46 is used to attract the frame 2, which helps the construction personnel to quickly and accurately place the bracket 41. At the same time, the positioning block 47 and the limiting groove 45 cooperate to prevent the screw 48 from rotating, which simplifies the installation process, reduces the difficulty of operation, improves the installation efficiency, and saves construction time and labor costs. The connecting device 4 achieves a firm connection between the template and other components through the tight cooperation of the screw 48, the threaded sleeve 43 and the bracket 41. At the same time, the connecting parts of this solution are mostly modularly designed, with low production cost, small space occupation, easy transportation, and easy recycling. Moreover, after failure, they can be replaced, which improves the service life of the steel template.
[0025] In this embodiment: a storage groove 410 is provided on the surface of the card holder 41, the storage groove 410 is connected to the stabilizing groove 49, and one end of the threaded sleeve 43 is inserted into the storage groove 410.
[0026] Specifically, the cross-section of the storage slot 410 is circular, and the threaded sleeve 43 is adapted to the storage slot 410. During rotation, the threaded sleeve 43 is inserted into the storage slot 410 to further position the card holder 41.
[0027] Specifically, the positioning block 47 is a rectangular block, and the positioning block 47 is adapted to the limiting groove 45 to prevent the screw 48 from rotating when the template body 1 is installed.
[0028] Specifically, a handle 44 is fixedly connected to one side of the card holder 41, and a magnet 46 is fixedly connected to the inner wall of the card holder 41. The magnet 46 is magnetically attracted to the frame 2, which improves the operating efficiency of the construction personnel.
[0029] In this embodiment: the auxiliary device 5 includes a positioning plate 51, which is located on one side of the frame 2. A locking rod 52 is fixedly connected to one side of the positioning plate 51. One end of the locking rod 52 is fastened to the frame 2. A screw hole 55 is opened on the surface of the positioning plate 51, and a fastening bolt 53 is threaded into the screw hole 55. Positioning grooves 54 are opened at the four corners of the frame 2. One end of the fastening bolt 53 is threaded into the positioning groove 54. The auxiliary device 5 uses the locking rod 52 and the fastening bolt 53 to further enhance the connection stability between multiple template bodies 1 and between the template and other structures, effectively preventing the template from shifting during the concrete pouring process, providing a reliable guarantee for the smooth progress of the concrete pouring construction, and ensuring that the concrete pouring quality reaches a high standard.
[0030] Specifically, there are four clamping rods 52, which are mirror images of each other. The longitudinal section of the positioning groove 54 is a quarter circle, and the inner wall of the positioning groove 54 is threaded. During the demolding stage, the clamping bracket 41, screw 48 and positioning plate 51 can be easily removed by simply loosening the fastening bolts 53 and threaded sleeve 43. This facilitates the quick and easy removal of the template, which not only improves the turnover efficiency of the template and reduces template wear, but also facilitates the maintenance and upkeep of the template and extends its service life.
[0031] Working principle: The formwork body 1 is the core part of the steel formwork, used for molding concrete. The frame 2 installed on its surface strengthens and protects the formwork body 1, while providing an installation base for the connecting device 4 and auxiliary device 5. The reinforcing rod 3 fixedly connected to the side of the formwork body 1 near the frame 2 further enhances the overall structural strength of the formwork, ensuring that the formwork will not deform during concrete pouring and vibration, thus guaranteeing the accuracy of concrete molding.
[0032] During the initial installation of the template body 1, the construction worker first inserts the screw 48 through the two connecting holes 42, then holds the handle 44 and accurately places the clip 41 at the designated position on the frame 2. The magnet 46 then attracts the frame 2, assisting the construction worker in the operation. The positioning block 47 is embedded in the limiting groove 45, effectively preventing the positioning block 47 and the screw 48 from rotating. Then, the threaded sleeve 43 is fitted onto the screw 48 and rotated. The threaded sleeve 43 then locks and is inserted into the storage groove 410.
[0033] After multiple template bodies 1 are installed, the clamping rods 52 are aligned with the frame 2 and inserted. Then, the four clamping rods 52 are respectively engaged with the frame 2 of the four template bodies 1. Simultaneously, the positioning grooves 54 on the four template bodies 1 form threaded grooves. Then, the fastening bolts 53 are rotated, and the threads of the fastening bolts 53 are inserted into the threaded grooves, further enhancing the connection stability between the template and other structures, preventing displacement of the template during concrete pouring, and ensuring the quality of concrete pouring.
[0034] During demolding, loosening the fastening bolts 53 releases the fastening effect of the positioning plate 51 on the frame 2. At the same time, unscrew the threaded sleeve 43, and then remove the bracket 41 and screw 48 to dismantle the template. This ensures the stable connection of the steel template while facilitating disassembly.
Claims
1. A steel formwork for easy demolding in concrete construction, comprising a formwork body (1), characterized in that: A frame (2) is installed on the surface of the template body (1). A reinforcing rod (3) is fixedly connected to the side of the template body (1) near the frame (2). One end of the reinforcing rod (3) is fixedly connected to the inner wall of the frame (2). A connecting device (4) is provided on the surface of the template body (1). The connecting device (4) includes a clip (41) which is fastened to the frame (2). A connecting hole (42) is opened on the surface of the frame (2). A screw is inserted into the connecting hole (42). (48) A positioning block (47) is fixedly connected to one end of the screw (48). A limiting groove (45) is opened on the surface of the card holder (41). One end of the positioning block (47) is inserted into the limiting groove (45). A stabilizing groove (49) is opened on the surface of the card holder (41). One end of the screw (48) passes through the stabilizing groove (49). A threaded sleeve (43) is threadedly connected to the end of the screw (48) away from the positioning block (47). An auxiliary device (5) is provided on the surface of the frame (2).
2. The steel formwork for easy demolding in concrete construction according to claim 1, characterized in that: The card holder (41) has a storage groove (410) on its surface. The storage groove (410) is connected to the stabilizing groove (49). One end of the threaded sleeve (43) is inserted into the storage groove (410).
3. The steel formwork for easy demolding in concrete construction according to claim 2, characterized in that: The cross-section of the storage groove (410) is circular, and the threaded sleeve (43) is adapted to the storage groove (410).
4. The steel formwork for easy demolding in concrete construction according to claim 1, characterized in that: The positioning block (47) is a rectangular block, and the positioning block (47) is adapted to the limiting groove (45).
5. The steel formwork for easy demolding in concrete construction according to claim 1, characterized in that: A handle (44) is fixedly connected to one side of the card holder (41), and a magnet (46) is fixedly connected to the inner wall of the card holder (41). The magnet (46) is magnetically attracted to the frame (2).
6. The steel formwork for easy demolding in concrete construction according to claim 1, characterized in that: The auxiliary device (5) includes a positioning plate (51), which is located on one side of the frame (2). A locking rod (52) is fixedly connected to one side of the positioning plate (51). One end of the locking rod (52) is fastened to the frame (2). A screw hole (55) is opened on the surface of the positioning plate (51). A fastening bolt (53) is threaded into the screw hole (55). A positioning groove (54) is opened at each of the four corners of the frame (2). One end of the fastening bolt (53) is threaded into the positioning groove (54).
7. A steel formwork for easy demolding in concrete construction according to claim 6, characterized in that: The number of the four clamps (52) is four, and the four clamps (52) are mirror images of each other. The longitudinal section of the positioning groove (54) is a quarter circle, and the inner wall of the positioning groove (54) is threaded.
Citation Information
Patent Citations
Steel formwork convenient to demould and used for building concrete construction
CN117552622A