Fasten buckle assembly for quick disassembly of building aluminum formwork
By using a U-shaped sleeve limiter combined with an eccentrically compressed snap-fit assembly, the problem of slow connection and dismantling of aluminum formwork was solved, enabling rapid assembly and disassembly and improving construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO MINRUI XINHE CONSTR ENG CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-09
AI Technical Summary
The existing aluminum formwork for construction is slow to connect and dismantle, which is time-consuming, and the bolt fixing makes it inconvenient to quickly assemble and disassemble.
The U-shaped sleeve limiter and eccentric extrusion method are used to insert the pin into the mounting holes of the two templates. The fasteners enable quick connection and disassembly. The eccentric rotating block and spring work together to insert and release the locking pin.
It enables rapid assembly and disassembly of aluminum formwork, improving construction efficiency, reducing disassembly time, and simplifying the operation process.
Smart Images

Figure CN224338628U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building aluminum formwork technology, and in particular relates to a snap-fit assembly for quick assembly and disassembly of building aluminum formwork. Background Technology
[0002] Aluminum formwork is designed according to modules and extruded by special equipment. It can be freely combined according to different structural dimensions. The design, research and development and construction application of aluminum formwork represents a major development in the construction industry. The application of aluminum formwork systems in the construction industry has improved the construction efficiency of building construction projects, including significant savings in building materials and labor.
[0003] Common aluminum formwork is often fixed with bolts, which makes it inconvenient to connect aluminum formwork to adjacent aluminum formwork and also inconvenient to dismantle. The dismantling speed of aluminum formwork is slow and time-consuming. Therefore, we designed a snap-fit component for quick dismantling and assembly of building aluminum formwork. It uses a U-shaped sleeve limit and eccentric extrusion to insert the pin into the installation hole of two formworks, making dismantling and assembly quick. Utility Model Content
[0004] The purpose of this utility model is to provide a snap-fit assembly for quick assembly and disassembly of aluminum formwork for buildings. It has the advantages of using a U-shaped sleeve for limiting and eccentric extrusion to insert the pin into the mounting holes of the two formworks, which allows for quick assembly and disassembly, thereby solving the aforementioned technical problems.
[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a snap-fit assembly for quick assembly and disassembly of building aluminum formwork, comprising multiple snap-fit parts sleeved between two formworks, multiple locking holes on the formworks, each snap-fit part including a U-shaped sleeve, with round holes on both sides of the U-shaped sleeve, a movable plate slidably connected to the inner cavity of the round hole, a locking pin fixedly connected through the movable plate, one end of the locking pin extending to the inner side of the U-shaped sleeve and fitting with the locking hole, a spring sleeved on the surface of the locking pin, the two ends of the spring being fixedly connected to the movable plate and the inner wall of the round hole respectively, a wedge-shaped surface being provided at the other end of the locking pin, and a U-shaped pressure shell slidably connected to the outer surface of the U-shaped sleeve, the U-shaped pressure shell fitting with the wedge-shaped surface on the locking pin.
[0006] Preferably, a square post is fixedly connected to the top of the U-shaped sleeve, the top of the square post extends through to the top of the U-shaped pressure shell and is slidably connected to the U-shaped pressure shell, and an eccentric rotating block is provided on the top of the U-shaped pressure shell, which is fitted onto the surface of the square post. A rotatable rotating pin is provided through the eccentric rotating block, and the rotating pin is rotatably connected to the end of the square post.
[0007] Preferably, two symmetrical springs are welded between the top of the U-shaped pressure shell inner cavity and the U-shaped sleeve.
[0008] Preferably, the top of the U-shaped pressure shell is provided with a limiting groove for limiting the movement of the eccentric rotating block.
[0009] Preferably, two symmetrical guide grooves are provided on both sides of the inner cavity of the U-shaped pressure shell, and two guide strips that slide in the inner cavity of the guide grooves are fixedly connected to both sides of the U-shaped sleeve.
[0010] Preferably, two symmetrical guide strips are fixedly connected to both sides of the inner cavity of the U-shaped sleeve, and two guide grooves are provided on the inner side of the template and on both sides of the lock hole for the guide strips to be inserted.
[0011] The beneficial effects of this utility model are:
[0012] 1. This utility model involves placing a U-shaped sleeve around the edges of two templates, then rotating an eccentric block. The eccentric block then presses the U-shaped pressure shell downwards. When the bottom of the U-shaped pressure shell contacts the wedge-shaped surface, the two locking pins move towards each other and insert into the inner cavities of the two locking holes, thus locking the two templates instead of bolts. During disassembly, simply rotate the eccentric block. The restoring force of springs two and one resets the U-shaped pressure shell and locking pins. Then, remove the U-shaped sleeve from the edge between the two templates. This achieves the purpose of using a U-shaped sleeve for limiting and eccentric compression to insert the pins into the mounting holes of the two templates, making disassembly and assembly quick.
[0013] 2. In this utility model, by using the guide strip two and the guide groove two together, when the U-shaped sleeve is fitted onto the edges of the two templates, the guide strip two inside the U-shaped sleeve will be inserted into the inner cavity of the guide groove two, which can effectively limit the U-shaped sleeve, so that the round hole on the U-shaped sleeve can be quickly aligned with the locking hole on the template, which is convenient for quick installation.
[0014] 3. By setting a limiting groove, the eccentric rotating block rotates in the inner cavity of the limiting groove. When the eccentric rotating block is in contact with the inner wall of the limiting groove, it will not easily rotate, thus providing a limit for the eccentric rotating block. When the eccentric rotating block is not under force, it ensures that the eccentric rotating block is in a stable state. Attached Figure Description
[0015] The advantages of the present invention in the above and / or other aspects will become clearer and more readily understood through the following detailed description taken in conjunction with the accompanying drawings, which are merely illustrative and do not limit the present invention, wherein:
[0016] Figure 1 This is a perspective view of one embodiment of the present utility model;
[0017] Figure 2 This is a three-dimensional schematic diagram of a buckle component according to an embodiment of the present utility model;
[0018] Figure 3This is a three-dimensional disassembled schematic diagram of a buckle component according to an embodiment of the present invention;
[0019] Figure 4 This is a three-dimensional disassembled schematic diagram of the U-shaped sleeve and locking pin according to an embodiment of the present invention;
[0020] Figure 5 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Template, 2. Lock hole, 3. Buckle, 31. U-shaped sleeve, 32. Round hole, 33. Movable plate, 34. Locking pin, 35. Spring 1, 36. Wedge-shaped surface, 37. U-shaped pressure shell, 38. Square column, 39. Eccentric rotating block, 310. Rotating pin, 311. Spring 2, 312. Limiting groove, 313. Guide groove 1, 314. Guide strip 1, 4. Guide strip 2, 5. Guide groove 2. Detailed Implementation
[0023] In the following description, embodiments of the snap-fit assembly for quick assembly and disassembly of aluminum formwork for buildings according to the present invention will be described with reference to the accompanying drawings.
[0024] Figure 1-5This invention illustrates a snap-fit assembly for quick assembly and disassembly of aluminum formwork in construction, comprising multiple snap-fit pieces 3 fitted between two formwork panels 1. Each formwork panel 1 has multiple locking holes 2. Each snap-fit piece 3 includes a U-shaped sleeve 31 with round holes 32 on both sides. A movable plate 33 is slidably connected to the inner cavity of each round hole 32. A locking pin 34 is fixedly connected through the movable plate 33. One end of the locking pin 34 extends to the inner side of the U-shaped sleeve 31 and is adapted to the locking hole 2. A spring 35 is fitted onto the surface of the locking pin 34, and both ends of the spring 35 are fixedly connected to the inner walls of the movable plate 33 and the round holes 32, respectively. The other end of the locking pin 34 has a wedge-shaped surface 36. A U-shaped pressure shell 37 is slidably connected to the outer surface of the U-shaped sleeve 31. The U-shaped pressure shell 37 is adapted to the wedge-shaped surface 36 on the locking pin 34. A square post 38 is fixedly connected to the top of the U-shaped sleeve 31. The top of the square post 38 extends through to the top of the U-shaped pressure shell 37 and is slidably connected to the U-shaped pressure shell 37. An eccentric rotating block 39 is provided on the top of the U-shaped pressure shell 37, which is fitted onto the surface of the square post 38. A rotatable rotating pin 310 is provided through the eccentric rotating block 39. The rotating pin 310 is rotatably connected to the end of the square post 38. The top of the inner cavity of the U-shaped pressure shell 37 is connected to the U-shaped sleeve 34. Two symmetrical springs 311 are welded between the U-shaped pressure shell 37 and the U-shaped pressure shell 37. A limiting groove 312 is provided on the top of the U-shaped pressure shell 37 to limit the movement of the eccentric rotating block 39. Through the setting of the limiting groove 312, the eccentric rotating block 39 rotates within the cavity of the limiting groove 312. When the eccentric rotating block 39 is in contact with the inner wall of the limiting groove 312, it will not easily rotate, thus providing a limit for the eccentric rotating block 39. When the eccentric rotating block 39 is not under force, it ensures that the eccentric rotating block 39 is in a stable state. Two symmetrical guide grooves 313 are provided on both sides of the inner cavity of the U-shaped pressure shell 37. Two springs are fixedly connected to both sides of the U-shaped sleeve 31. A guide bar 314 slides within the inner cavity of the guide groove 313. Two symmetrical guide bars 4 are fixedly connected to both sides of the inner cavity of the U-shaped sleeve 31. Two guide grooves 5 are provided on the inner side of the template 1 and on both sides of the lock hole 2 for the guide bars 4 to be inserted. Through the cooperation of the guide bars 4 and the guide grooves 5, when the U-shaped sleeve 31 is fitted onto the edges of the two templates 1, the guide bars 4 in the inner cavity of the U-shaped sleeve 31 will be inserted into the inner cavity of the guide grooves 5, which can effectively limit the U-shaped sleeve 31, so that the round hole 32 on the U-shaped sleeve 31 can be quickly aligned with the lock hole 2 on the template 1, which is convenient for quick installation.
[0025] Working principle: When using this utility model, the two templates 1 are attached together, and then the buckle 3 is lifted so that the U-shaped sleeve 31 is fitted onto the edges of the two templates 1. During this process, the guide strip 2 4 is inserted into the inner cavity of the guide groove 2 5, effectively ensuring that the locking pin 34 is aligned with the locking hole 2. Then, the eccentric rotating block 39 is rotated 180 degrees. The eccentric rotating block 39, through the rotation of the rotating pin 310 on the square column 38, squeezes the U-shaped pressure shell 37, causing the U-shaped pressure shell 37 to move downward and squeeze the spring 2 311. The two ends of the U-shaped pressure shell 37 respectively contact the wedge-shaped surfaces on the two locking pins 34. When 36 contacts, the two locking pins 34 move towards each other. The locking pins 34 then cause the movable plate 33 to slide in the inner cavity of the round hole 32 and squeeze the spring 35, so that the locking pins 34 are inserted into the inner cavity of the locking hole 2 on the template 1, locking the two templates 1 and connecting the two templates 1. When disassembling, simply rotate the eccentric block 39 in the opposite direction to the limit. The restoring force of the spring 311 will cause the U-shaped pressure shell 37 to move upward and disengage from the contact with the wedge surface 36. Then, the restoring force of the spring 35 will cause the locking pins 34 to disengage from the inner cavity of the locking hole 2. Then, the U-shaped sleeve 31 can be removed from the template 1 and disassembled.
[0026] In summary, this quick-release buckle assembly for aluminum formwork achieves rapid disassembly and assembly by placing a U-shaped sleeve 31 around the edges of two formwork panels 1, then rotating the eccentric rotating block 39. The eccentric rotating block 39 then presses the U-shaped pressure shell 37 downwards. The bottom of the U-shaped pressure shell 37 contacts the wedge-shaped surface 36, causing the two locking pins 34 to move towards each other and insert into the inner cavities of the two locking holes 2, thus locking the two formwork panels instead of bolts. For disassembly, simply rotate the eccentric rotating block 39; the restoring force of springs 2 311 and 1 35 resets the U-shaped pressure shell 37 and locking pins 34. Then, the U-shaped sleeve 31 is removed from the edge between the two formwork panels 1. This achieves the goal of quick disassembly and assembly by using a U-shaped sleeve for limiting and eccentric compression to insert the pins into the mounting holes of the two formwork panels.
Claims
1. A snap-fit assembly for quick assembly and disassembly of aluminum formwork for construction, characterized in that, The device includes multiple snap fasteners (3) fitted between two templates (1). Each template (1) has multiple locking holes (2). Each snap fastener (3) includes a U-shaped sleeve (31). Both sides of the U-shaped sleeve (31) have round holes (32). A movable plate (33) is slidably connected to the inner cavity of each round hole (32). A locking pin (34) is fixedly connected through the movable plate (33). One end of the locking pin (34) extends to the U-shaped sleeve (31). The inner side of the locking pin (34) is adapted to the locking hole (2). A spring (35) is sleeved on the surface of the locking pin (34). The two ends of the spring (35) are fixedly connected to the inner wall of the movable plate (33) and the round hole (32) respectively. A wedge-shaped surface (36) is opened at the other end of the locking pin (34). A U-shaped pressure shell (37) is slidably connected to the outer surface of the U-shaped sleeve (31). The U-shaped pressure shell (37) is adapted to the wedge-shaped surface (36) on the locking pin (34).
2. The snap-fit assembly for quick assembly and disassembly of aluminum formwork for buildings according to claim 1, characterized in that, A square column (38) is fixedly connected to the top of the U-shaped sleeve (31). The top of the square column (38) extends through to the top of the U-shaped pressure shell (37) and is slidably connected to the U-shaped pressure shell (37). An eccentric rotating block (39) is provided on the top of the U-shaped pressure shell (37) and fits on the surface of the square column (38). A rotatable rotating pin (310) is provided through the eccentric rotating block (39) and is rotatably connected to the end of the square column (38).
3. The snap-fit assembly for quick assembly and disassembly of aluminum formwork for buildings according to claim 2, characterized in that, Two symmetrical springs (311) are welded between the top of the inner cavity of the U-shaped pressure shell (37) and the U-shaped sleeve (31).
4. The snap-fit assembly for quick assembly and disassembly of aluminum formwork for buildings according to claim 3, characterized in that, The top of the U-shaped pressure shell (37) is provided with a limiting groove (312) for limiting the movement of the eccentric rotating block (39).
5. The snap-fit assembly for quick assembly and disassembly of aluminum formwork for buildings according to claim 4, characterized in that, The inner cavity of the U-shaped pressure shell (37) has two symmetrical guide grooves (313) on both sides, and the two sides of the U-shaped sleeve (31) are fixedly connected to two guide strips (314) that slide in the inner cavity of the guide grooves (313).
6. The snap-fit assembly for quick assembly and disassembly of aluminum formwork for buildings according to claim 5, characterized in that, Two symmetrical guide strips (4) are fixedly connected to both sides of the inner cavity of the U-shaped sleeve (31). Two guide grooves (5) for the guide strips (4) to be inserted are opened on the inner side of the template (1) and on both sides of the lock hole (2).