Quickly assembled building template

By introducing multiple sets of connecting flanges and a synchronous transmission system driven by servo motors into the building formwork, the problem of inconvenient operation of threaded columns has been solved, enabling rapid assembly and disassembly of large building formwork, and improving construction efficiency and structural stability.

CN224027951UActive Publication Date: 2026-03-24SCEGC NO 5 CONSTRUCTION ENGINEERING GROUP COMPANYLTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-15
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing formwork for large-scale construction has problems such as the need for repeated operation of threaded columns, making it difficult to accurately control the feed rate, which leads to local stress concentration and deformation of the inner liner.

Method used

The system employs a synchronous transmission system driven by multiple connecting flanges and servo motors. Through the meshing of a ring rack and gear, it ensures the synchronous rotation of multiple threaded rods. Combined with the locking design of the insertion rod and insertion hole, it enables equidistant feeding and rapid disassembly of the arc-shaped inner liner.

Benefits of technology

It improves the accuracy of template assembly and structural stability, shortens the construction cycle, avoids local stress concentration and deformation, and is suitable for rapid construction of large buildings.

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Abstract

The utility model discloses a quick assembly type building formwork which comprises a plurality of sets of connecting flanges, every two of the connecting flanges form a pair, sliding rods are fixedly connected to the ends of sliding blocks, one ends of the sliding rods penetrate through an outer formwork and extend into the outer formwork, a connecting frame is fixedly connected to the ends of the sliding rods, and an arc-shaped inner container is installed in the connecting frame. And a driving mechanism for driving the multiple groups of threaded rods to rotate synchronously is mounted on the outer wall of the connecting flange. Through meshing transmission of the annular rack and the multiple sets of gears, it is guaranteed that all the threaded rods rotate synchronously, the multiple sets of arc-shaped liners are driven to be fed towards the center direction of the outer mold plate at equal intervals, and compared with the mode that multiple threaded columns need to be manually adjusted step by step, the feeding efficiency is improved. According to the device, the problem of local stress concentration or liner deformation caused by excessive single-side adjustment is thoroughly avoided, the template assembly precision and the structural stability are improved, and the device is particularly suitable for a rapid construction scene of a large building template.
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Description

Technical Field

[0001] This utility model relates to the field of building formwork technology, and in particular to a rapid assembly building formwork. Background Technology

[0002] Precast formwork is a very common type of formwork used in prefabricated building design. It is formed by directly pouring concrete into the formwork.

[0003] Chinese utility model patent CN220464248U discloses a prefabricated building template for prefabricated building design. In use, the device drives the arc-shaped inner liner forward by rotating threaded columns until the four inner liners are assembled into a circular inner liner. For disassembly, the threaded columns are reversed sequentially to separate the inner liner from the precast concrete component. However, this method of rotating the threaded columns has certain drawbacks. When assembling large building templates, it is difficult to precisely control the feed amount of each threaded column due to the need to repeatedly operate four adjustment points. Excessive feed of a single threaded column can lead to localized stress concentration in the inner liner, potentially causing deformation. Therefore, this invention proposes a rapid assembly building template to address these issues. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a rapid assembly building template.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-assembly building formwork includes multiple sets of connecting flanges, which are paired up. An outer formwork is fixedly connected between each pair of connecting flanges, and each pair of adjacent connecting flanges is in close contact. Multiple sets of arc-shaped inner liner are slidably connected inside the outer formwork. Multiple sets of threaded rods are rotatably connected to the outer wall of the outer formwork, and the number of threaded rods is the same as the number of arc-shaped inner liner. The positions of the threaded rods correspond one-to-one with the positions of the arc-shaped inner liner. A slider is threadedly connected to the threaded section of the threaded rod. A sliding rod is fixedly connected to the end of the slider. One end of the sliding rod extends through the outer formwork into its interior. A connecting frame is fixedly connected to the end of the sliding rod. The arc-shaped inner liner is installed in the connecting frame. A drive mechanism is installed on the outer wall of the connecting flange to drive the multiple sets of threaded rods to rotate synchronously.

[0007] Preferably, the driving mechanism includes multiple sets of gears rotatably connected to the outer wall of the outer template, and the multiple sets of gears are respectively coaxially and fixedly connected to multiple sets of threaded rods.

[0008] Preferably, a limiting groove is formed on the outer wall of the outer template, and multiple sets of connecting rods are slidably connected in the limiting groove. The ends of the multiple sets of connecting rods are connected to an annular rack, and the annular rack meshes with multiple sets of gears.

[0009] Preferably, each of the multiple sets of threaded rod ends is fixedly connected to a limiting block, the radius of which is larger than that of the threaded rod.

[0010] Preferably, the outer wall of the arc-shaped inner liner is provided with an insertion hole, and the outer wall of the connecting frame is slidably connected with an insertion rod, which extends slidably into the insertion hole.

[0011] Preferably, a side plate is fixedly connected to the side wall of the connecting flange, a servo motor is fixedly connected to the outer wall of the side plate, and the output shaft of the servo motor is coaxially fixedly connected to its adjacent threaded rod.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model uses the meshing transmission of a ring rack and multiple sets of gears to ensure that all threaded rods rotate synchronously, driving multiple sets of arc-shaped inner liner to feed equidistantly towards the center of the outer template. Compared with the method of manually adjusting multiple threaded columns step by step, this device completely avoids the problem of local stress concentration or inner liner deformation caused by excessive adjustment on one side, improves the accuracy and structural stability of template assembly, and is especially suitable for rapid construction scenarios of large building templates.

[0014] 2. The plug-in locking design of this utility model, combining the forward and reverse rotation control of the threaded rod driven by the servo motor, allows operators to quickly complete the rigid fixing and unlocking / retraction of the arc-shaped inner liner. After construction, simply reverse the motor and pull out the plug to achieve synchronous reset of the arc-shaped inner liner and disassembly of the entire template, significantly shortening the construction cycle. Furthermore, the modular structure facilitates reuse. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the rapid assembly building formwork proposed in this utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of components such as the connecting flange and outer template.

[0017] Figure 3 for Figure 2 Schematic diagram of cross-section structure.

[0018] Figure 4 for Figure 3 Schematic diagram of components such as the arc-shaped inner liner, gears, and servo motor.

[0019] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Connecting flange; 2. Outer template; 3. Arc-shaped inner liner; 4. Side plate; 5. Servo motor; 6. Ring rack; 7. Limiting groove; 8. Gear; 9. Limiting block; 10. Slider; 11. Sliding rod; 12. Insert rod; 13. Insertion hole; 14. Connecting frame; 15. Threaded rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-5 The quick-assembly building template includes multiple sets of connecting flanges 1, which are paired up. An outer template 2 is fixedly connected between each pair of connecting flanges 1. Each pair of adjacent connecting flanges 1 is in close contact. Multiple sets of arc-shaped inner liner 3 are slidably connected inside the outer template 2. Multiple sets of threaded rods 15 are rotatably connected to the outer wall of the outer template 2, and the number of threaded rods 15 is the same as the number of arc-shaped inner liner 3. The positions of the threaded rods 15 correspond one-to-one with the positions of the arc-shaped inner liner 3. A slider 10 is threadedly connected to the threaded section of the threaded rod 15. A slide rod 11 is fixedly connected to the end of the slider 10. One end of the slide rod 11 extends through the outer template 2 into its interior. A connecting frame 14 is fixedly connected to the end of the slide rod 11. The arc-shaped inner liner 3 is installed in the connecting frame 14. A drive mechanism for driving the multiple sets of threaded rods 15 to rotate synchronously is installed on the outer wall of the connecting flange 1.

[0023] Specifically, the drive mechanism synchronously controls the rotation of multiple sets of threaded rods 15 to achieve equidistant feeding of all arc-shaped inner bladders 3, eliminating the stress concentration problem caused by asynchronous manual adjustment. The drive mechanism includes multiple sets of gears 8 rotatably connected to the outer wall of the outer template 2. The multiple sets of gears 8 are coaxially fixedly connected to the multiple sets of threaded rods 15. The outer wall of the outer template 2 is provided with a limit groove 7. Multiple sets of connecting rods are slidably connected in the limit groove 7. The ends of the multiple sets of connecting rods are connected to a ring rack 6. The ring rack 6 meshes with the multiple sets of gears 8.

[0024] Specifically, by means of the rotation of the ring rack 6, multiple sets of gears 8 and threaded rods 15 can be driven to rotate synchronously, and the connecting frame 14 and the arc-shaped inner liner 3 can be pushed to extend and retract synchronously through the slide rod 11.

[0025] Multiple sets of threaded rods 15 are fixedly connected to limit blocks 9 at their ends, and the radius of the limit blocks 9 is larger than the radius of the threaded rods 15.

[0026] Specifically, the setting of the limit block 9 can effectively limit the travel distance of the slider 10 on the threaded rod 15.

[0027] The outer wall of the arc-shaped inner liner 3 has an insertion hole 13. The outer wall of the connecting frame 14 is slidably connected to the insertion rod 12, which slides into the insertion hole 13. The side plate 4 is fixedly connected to the side wall of the connecting flange 1. The outer wall of the side plate 4 is fixedly connected to the servo motor 5. The output shaft of the servo motor 5 is coaxially fixedly connected to its adjacent threaded rod 15.

[0028] In this utility model, when the device is used, the operator first aligns and fixes multiple sets of connecting flanges 1 in pairs to form a stable outer template 2 support frame. At this time, multiple sets of arc-shaped inner liner 3 are stored inside the outer template 2. Then, by sliding the insert rod 12 along the outer wall of the connecting frame 14 into the insertion hole 13 of the arc-shaped inner liner 3, the arc-shaped inner liner 3 and the connecting frame 14 are rigidly locked.

[0029] After the servo motor 5 is started, its output shaft drives the adjacent threaded rod 15 to rotate. Since multiple sets of gears 8 are coaxially fixed with the threaded rod 15, and the ring rack 6 meshes with all the gears 8, the ring rack 6 rotates synchronously along the limiting groove 7, driving all the gears 8 and the corresponding threaded rods 15 to rotate at the same speed. During this process, the slider 10 pushes the slide rod 11 to extend into the outer template 2.

[0030] The connecting frame 14 at the end of the slide rod 11 moves forward synchronously with the slide rod 11, driving the arc-shaped inner liner 3 to slide towards the center of the outer template 2. Since all the threaded rods 15 rotate synchronously through the ring rack 6, the feed amount of multiple sets of arc-shaped inner liners 3 is completely consistent, ensuring that a uniform circular inner cavity is formed when they are spliced, avoiding local stress concentration or deformation caused by excessive compression on one side.

[0031] After construction is completed, the servo motor 5 drives the threaded rod 15 to rotate in the opposite direction, and the slider 10 drives the slide rod 11 and the connecting frame 14 to retract, releasing the thrust on the arc-shaped inner liner 3. The operator then pulls out the insertion rod 12 to quickly disassemble the arc-shaped inner liner.

[0032] In summary, this device achieves synchronous driving of multiple sets of threaded rods 15 through the meshing transmission of the ring rack 6 and the gear 8, ensuring equidistant feeding of the arc-shaped inner liner 3 and completely eliminating the problem of uneven stress caused by manual step-by-step adjustment.

[0033] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A quick-assembly building formwork, comprising multiple sets of connecting flanges (1), characterized in that, Multiple sets of connecting flanges (1) are paired up. An outer template (2) is fixedly connected between each pair of connecting flanges (1). Each pair of adjacent connecting flanges (1) is in close contact. Multiple sets of arc-shaped inner liner (3) are slidably connected inside the outer template (2). Multiple sets of threaded rods (15) are rotatably connected to the outer wall of the outer template (2), and the number is the same as the number of multiple sets of arc-shaped inner liner (3). The position of the threaded rod (15) corresponds one-to-one with the position of the arc-shaped inner liner (3). A slider (10) is threadedly connected to the threaded section of the threaded rod (15). A sliding rod (11) is fixedly connected to the end of the slider (10). One end of the sliding rod (11) extends through the outer template (2) into its interior. A connecting frame (14) is fixedly connected to the end of the sliding rod (11). The arc-shaped inner liner (3) is installed in the connecting frame (14). A driving mechanism for driving multiple sets of threaded rods (15) to rotate synchronously is installed on the outer wall of the connecting flange (1).

2. The rapid assembly building formwork according to claim 1, characterized in that, The driving mechanism includes multiple sets of gears (8) rotatably connected to the outer wall of the outer template (2), and the multiple sets of gears (8) are coaxially fixedly connected to multiple sets of threaded rods (15).

3. The rapid assembly building formwork according to claim 2, characterized in that, The outer template (2) has a limiting groove (7) on its outer wall. Multiple sets of connecting rods are slidably connected in the limiting groove (7). The ends of the multiple sets of connecting rods are connected to an annular rack (6). The annular rack (6) meshes with multiple sets of gears (8).

4. The rapid assembly building formwork according to claim 3, characterized in that, Each of the multiple sets of threaded rods (15) is fixedly connected to a limiting block (9), the radius of which is larger than that of the threaded rod (15).

5. The rapid assembly building formwork according to claim 4, characterized in that, The outer wall of the arc-shaped inner liner (3) is provided with a socket (13), and the outer wall of the connecting frame (14) is slidably connected with a plug rod (12), which slides into the socket (13).

6. The rapid assembly building formwork according to claim 5, characterized in that, A side plate (4) is fixedly connected to the side wall of the connecting flange (1), and a servo motor (5) is fixedly connected to the outer wall of the side plate (4). The output shaft of the servo motor (5) is coaxially fixedly connected to its adjacent threaded rod (15).

Citation Information

Patent Citations

  • Prefabricated building template for assembly type building design

    CN220464248U