Quick-release splicing clamping structure for building formwork
Patent Information
- Application Number
- CN202522334995.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-11-04
AI Technical Summary
[0004]虽然上述实用新型能够有效限制竖向模板的根部位移,但是在建筑模板实际使用过程中,大多数情况下会将多个模板拼成矩形后在内部浇灌,为了能够方便地将多个模板拼成一个适合浇灌混凝土的矩形
1、通过将连接机构安装在模板上表面左右两侧后,能够快速地将两个模板水平或者垂直的拼接在一起,便于将模板按需求拼好以进行浇灌混凝土。
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Figure CN224769819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building formwork technology, specifically to a quick-release splicing and snap-fit structure for building formwork. Background Technology
[0002] Concrete structures are the most widely used structural system in my country's construction industry, mainly composed of vertical and horizontal members. Before pouring concrete, vertical formwork is usually installed on the sides of the building members. Multiple vertical formworks are combined to form a mold for pouring. Common methods for fixing vertical formwork include: one is to weld steel bar ends to the main reinforcement of the vertical member, and then fix the vertical member formwork with the welded steel bar ends for positioning and installation. However, welding can damage the main reinforcement of the vertical member and makes it unusable. Another method is to drill holes in the floor slab at the positioning line of the formwork outside the main reinforcement and insert steel bars. Then, the vertical formwork is positioned and fixed using these steel bars. However, when the position of the formwork positioning line happens to pass through the reinforcement inside the floor slab, it is necessary to avoid drilling holes around the reinforcement.
[0003] Utility model patent CN218952812U discloses a vertical template positioning structure. This utility model includes a vertical template locking part, a positioning part, and a fixing part. The lower end of the vertical template is locked inside the vertical template locking part. The positioning part is fixedly connected to the outside of the vertical template locking part, and a horizontal template abuts against the root of the positioning part at the outside of the vertical template locking part. The fixing part is fixedly connected to the positioning part, the horizontal template, and the concrete structural slab below them. This utility model not only effectively limits the root displacement of the vertical template, ensuring the quality of the concrete pouring for the vertical component to be formed, but also, the end of the horizontal template abuts against the outside of the vertical template locking part to seal the root of the vertical template, preventing leakage of grout during concrete pouring. Furthermore, the device can be disassembled after the vertical template is removed, allowing for reuse.
[0004] Although the aforementioned utility model can effectively limit the root displacement of vertical formwork, in actual use of building formwork, multiple formwork panels are often assembled into a rectangle before pouring concrete inside. To facilitate the assembly of multiple formwork panels into a rectangle suitable for concrete pouring, we propose a quick-release splicing and snap-fit structure for building formwork. Utility Model Content
[0005] This utility model provides a quick-release splicing and snap-fit structure for building formwork to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: The quick-release splicing and snap-fit structure for building formwork includes a formwork, and connecting mechanisms are fixedly installed on both sides of the upper surface of the formwork. The connecting mechanism includes a connecting platform, a snap-fit plate welded to the left end of the rear surface of the connecting platform, and a fixing mechanism welded to the front surface of the connecting platform. A limit frame is welded to the left end of the middle position on the upper surface of the connecting platform. A limit rod is threadedly connected to the upper surface of the limit frame. An insertion rod is rotatably connected to the right side of the middle position on the upper surface of the connecting platform. A limit hole is opened on the right side of the upper surface of the insertion rod. Blocks are welded to the front side of the insertion rod and the left side of the upper surface of the connecting platform.
[0007] As a preferred technical solution, the limiting frame has an overall n-shaped structure, and the inner inclined edge of the left side surface of the limiting frame is beveled.
[0008] This design features an n-shaped structure that provides stable limiting support, while the beveled edge reduces wear and tear during assembly. It also facilitates the installation and operation of the limiting rod, improving structural durability and ease of assembly.
[0009] As a preferred technical solution, an auxiliary block with a regular hexagonal top view is welded to the top of the limiting rod, and a threaded section is opened on the upper half of the outer surface of the limiting rod.
[0010] This feature includes a hexagonal auxiliary block that is compatible with wrenches and other tools, allowing for quick and easy tightening and loosening of the limit rod; the threaded section design ensures a secure connection between the limit rod and the limit frame, preventing loosening after assembly and improving operational efficiency and connection reliability.
[0011] As a preferred technical solution, a threaded hole for threaded connection of the limiting rod is provided at the middle position of the upper surface of the limiting frame. The threaded hole penetrates the upper side wall of the limiting frame, and the length of the threaded hole is equal to the threaded segment opened on the upper half of the outer surface of the limiting rod.
[0012] This setting matches the length of the threaded hole and the threaded section, ensuring that the limit rod can be fully fixed after being screwed in, while also precisely controlling the length of the lower end protruding (to facilitate insertion into the limit hole), avoiding over-screwing or unstable connection, and ensuring the accuracy of the limit function.
[0013] As a preferred technical solution, the stop restricts the insertion rod to rotate only from 0 to 90 degrees, and the insertion rod can rotate from a horizontal state to a vertical state.
[0014] This setting precisely controls the range of motion of the insertion rod, ensuring that the insertion rod can be horizontally retracted (to avoid interference) and vertically locked (to achieve positioning) during splicing. It prevents excessive rotation of the insertion rod from causing structural jamming or failure, thereby improving splicing stability and operational safety.
[0015] As a preferred technical solution, the top view length of the snap-fit plate is equal to the top view width of the connecting platform plus the top view width of the snap-fit plate, and the left side surface of the limiting frame and the left side surface of the connecting platform are located in the same vertical plane.
[0016] This design, with its interlocking plate length, ensures effective overlap with another template, increasing the stress area and improving splicing strength; the limit frame and connecting platform are coplanar to avoid structural protrusion, reduce assembly interference, and ensure the flatness of the template splicing.
[0017] As a preferred technical solution, the diameter of the lower half of the limiting rod is smaller than the inner diameter of the threaded section on the outer surface of the limiting rod, and the size of the lower end of the limiting rod is consistent with the size of the limiting hole.
[0018] This design features a smaller diameter lower section for easier insertion into the limiting hole, matching the hole size for precise positioning and preventing the insertion rod from wobbling; the larger outer diameter of the threaded section ensures a stable connection with the limiting frame, balancing positioning accuracy and structural strength, and improving splicing reliability.
[0019] As a preferred technical solution, the fixing mechanism includes a fixing connecting block welded to the front surface of the connecting platform, a fixing moving plate embedded in the rear surface of the fixing connecting block, and a fixing bolt threaded to the middle position of the front surface of the fixing connecting block. The fixing bolt passes through the fixing moving plate and is rotatably connected to the fixing moving plate. A handle is welded to the front end of the fixing bolt.
[0020] This design allows for quick fixing and disassembly of the template by simply rotating the bolts on the handle, enabling the movable plate to tighten or loosen the splicing components without the need for complicated tools. The overall structure is simple, the operation is labor-saving, and it significantly improves the efficiency of template assembly and disassembly, which is in line with the original intention of the "quick-release" design.
[0021] Compared with the prior art, the beneficial effects of this utility model are: 1. By installing the connecting mechanism on the left and right sides of the upper surface of the template, two templates can be quickly spliced together horizontally or vertically, making it easy to assemble the templates as needed for pouring concrete.
[0022] 2. After the concrete has solidified, when it is necessary to dismantle the formwork, simply loosen the limit rod to quickly dismantle it, which can quickly separate two formwork panels that are spliced together by the connecting mechanism. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connecting mechanism in this utility model; Figure 3This is a schematic diagram of the connecting platform in this utility model; Figure 4 This is a schematic diagram of the fixing mechanism in this utility model; Figure 5 This is a schematic diagram of the structure of the limiting frame and the limiting rod in this utility model; The meanings of the labels in the diagram are as follows: 100. Template; 200. Connecting mechanism; 210. Connecting platform; 211. Limiting frame; 212. Limiting rod; 213. Stop block; 214. Insert rod; 215. Limiting hole; 220. Snap-fit plate; 230. Fixing mechanism; 231. Fixing connecting block; 232. Fixing moving plate; 233. Handle; 234. Fixing bolt. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-5 This embodiment provides a technical solution: The quick-release splicing and snap-fit structure of the building formwork includes a formwork 100. Both sides of the upper surface of the formwork 100 are fixedly installed with a connecting mechanism 200. The connecting mechanism 200 includes a connecting platform 210, a snap-fit plate 220 welded to the left end of the rear surface of the connecting platform 210, and a fixing mechanism 230 welded to the front surface of the connecting platform 210. A limit frame 211 is welded to the left end of the middle position of the upper surface of the connecting platform 210. A limit rod 212 is threadedly connected to the upper surface of the limit frame 211. An insertion rod 214 is rotatably connected to the right side of the middle position of the upper surface of the connecting platform 210. A limit hole 215 is opened on the right side of the upper surface of the insertion rod 214. A stop block 213 is welded to the front side and the left side of the upper surface of the connecting platform 210. Through the above mechanism, two different templates 100 can be quickly spliced together. After use, the templates 100 can also be quickly disassembled and reused.
[0026] Furthermore, such as Figure 5 As shown, the limiting frame 211 has an overall n-shaped structure. The inner beveled edge of the left side surface of the limiting frame 211 is beveled to provide guidance for the insertion of the rod 214 into the limiting frame 211.
[0027] Furthermore, such as Figure 5As shown, an auxiliary block with a regular hexagonal shape in top view is welded to the top of the limiting rod 212. A threaded section is opened on the upper half of the outer surface of the limiting rod 212. A threaded hole for threaded connection of the limiting rod 212 is opened in the middle of the upper surface of the limiting frame 211. The threaded hole penetrates the upper side wall of the limiting frame 211. The length of the threaded hole is equal to the threaded section opened on the upper half of the outer surface of the limiting rod 212, ensuring that the limiting rod 212 can be threadedly connected to the limiting frame 211 while also being long enough to be inserted into the limiting hole 215 to limit the insertion rod 214.
[0028] In this embodiment, as Figure 4 As shown, the stop block 213 restricts the insertion rod 214 to rotate only from 0 to 90 degrees. The insertion rod 214 can rotate from a horizontal state to a vertical state, and can be used with the template for horizontal or vertical splicing.
[0029] In this embodiment, as Figure 2 As shown, the top view length of the snap-fit plate 220 is equal to the top view width of the connecting platform 210 plus the top view width of the snap-fit plate 220. The left side surface of the limit frame 211 and the left side surface of the connecting platform 210 are located in the same vertical plane, ensuring that the two connecting mechanisms 200 will not affect each other after the template 100 is attached.
[0030] In this embodiment, as Figure 3 As shown, the diameter of the lower half of the limiting rod 212 is smaller than the inner diameter of the threaded section on the outer surface of the limiting rod 212. The size of the lower end of the limiting rod 212 is consistent with the size of the limiting hole 215, ensuring that the lower half of the limiting rod 212 can pass smoothly through the limiting frame 211 and be inserted into the limiting hole 215, while also being able to be threadedly connected to the limiting frame 211 through the threaded section on the upper half of the limiting rod 212.
[0031] In this embodiment, as Figure 4 As shown, the fixing mechanism 230 includes a fixing connecting block 231 welded to the front surface of the connecting platform 210, a fixing moving plate 232 embedded in the rear surface of the fixing connecting block 231, and a fixing bolt 234 threaded to the middle position of the front surface of the fixing connecting block 231. The fixing bolt 234 passes through the fixing moving plate 232 and is rotatably connected to the fixing moving plate 232. A handle 233 is welded to the front end of the fixing bolt 234. By rotating the handle 233, the fixing moving plate 232 can be controlled to move towards the template 100, thereby fixing the connecting mechanism 200 as a whole to one side of the upper surface of the template 100.
[0032] In the specific use of the quick-release splicing and snap-fit structure of the building template in this embodiment, each template 100 that needs to be assembled has a connecting mechanism 200 installed on both the left and right ends of the upper surface through the fixing mechanism 230. When installing the right connecting mechanism 200, the connecting platform 210 is first placed on the upper surface of the template 100, and then the right surface of the connecting platform 210 is aligned with the right surface of the template 100. Then, the handle 233 is turned counterclockwise to control the rotation of the fixing bolt 234. Since the fixing bolt 234 is threadedly connected to the fixing connecting block 231, as the fixing bolt 234 rotates, the fixing bolt 234 will move inward in the fixing connecting block 231, driving the fixed moving plate 232, which is rotatably connected to the fixing bolt 234, to move towards the template 100, thereby clamping and fixing the template 100 in the connecting mechanism 200. When it is necessary to assemble template 100, the template 100 can be placed horizontally or vertically as needed. When placed horizontally, the insertion rod 214 is kept horizontal from the top view. Then, the insertion rod 214 in the connecting mechanism 200 on the right side of the upper surface of the first template 100 is inserted into the limiting bracket 211 in the connecting mechanism 200 on the left side of the upper surface of the second template 100. The limiting rod 212 is then turned to insert it into the limiting hole 215 to fix the insertion rod 214. The assembly is then complete. When placed vertically, the insertion rod 214 is rotated to a vertical position from the top view. Other steps remain the same.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A quick-release splicing and snap-fit structure for building formwork, including formwork (100), characterized in that: The template (100) is fixedly installed on both sides of the upper surface with a connecting mechanism (200). The connecting mechanism (200) includes a connecting platform (210), a snap-fit plate (220) welded to the left end of the rear surface of the connecting platform (210), and a fixing mechanism (230) welded to the front surface of the connecting platform (210). A limiting frame (211) is welded to the left end of the middle position of the upper surface of the connecting platform (210). A limiting rod (212) is threadedly connected to the upper surface of the limiting frame (211). A plug rod (214) is rotatably connected to the right side of the middle position of the upper surface of the connecting platform (210). A limiting hole (215) is opened on the right side of the upper surface of the plug rod (214). A stop block (213) is welded to the front side and the left side of the upper surface of the connecting platform (210).
2. The quick-release splicing and snap-fit structure for building formwork as described in claim 1, characterized in that: The limiting frame (211) has an overall n-shaped structure, and the inner beveled edge of the left side surface of the limiting frame (211) is treated with chamfering.
3. The quick-release splicing and clamping structure of the building template according to claim 2, characterized in that: The top of the limiting rod (212) is welded with an auxiliary block that is a regular hexagon in top view, and the upper half of the outer surface of the limiting rod (212) is provided with a threaded section.
4. The quick-release splicing and clamping structure of the building template according to claim 3, characterized in that: The upper surface of the limiting frame (211) has a threaded hole in the middle for the threaded connection of the limiting rod (212). The threaded hole penetrates the upper side wall of the limiting frame (211), and the length of the threaded hole is equal to the threaded section on the upper half of the outer surface of the limiting rod (212).
5. The quick-release splicing and clamping structure of the building template according to claim 4, characterized in that: The stop (213) restricts the insertion rod (214) to rotate only from 0 to 90 degrees, and the insertion rod (214) can rotate from a horizontal state to a vertical state.
6. The quick-release splicing and clamping structure of the building template according to claim 5, characterized in that: The top view length of the snap-fit plate (220) is equal to the top view width of the connecting platform (210) plus the top view width of the snap-fit plate (220). The left side surface of the limiting frame (211) and the left side surface of the connecting platform (210) are located in the same vertical plane.
7. The quick-release splicing and snap-fit structure for building formwork as described in claim 6, characterized in that: The diameter of the lower half of the limiting rod (212) is smaller than the inner diameter of the threaded section on the outer surface of the limiting rod (212), and the size of the lower end of the limiting rod (212) is the same as the size of the limiting hole (215).
8. The quick-release splicing and clamping structure of the building template according to claim 7, characterized in that: The fixing mechanism (230) includes a fixing connecting block (231) welded to the front surface of the connecting platform (210), a fixing moving plate (232) embedded in the rear surface of the fixing connecting block (231), and a fixing bolt (234) threaded to the middle position of the front surface of the fixing connecting block (231). The fixing bolt (234) passes through the fixing moving plate (232) and is rotatably connected to the fixing moving plate (232). A handle (233) is welded to the front end of the fixing bolt (234).