A nail-mounted mold installation structure
By using a nail-mounted formwork installation structure, the flange edges of the formwork are directly overlapped for support, eliminating the need for wooden formwork and timber, and enabling modular and rapid assembly. This solves the problems of excessive material usage and high cost in ribbed floor slab formwork, while improving construction efficiency and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI MINGRUI CHUANGYING NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the use of wooden formwork and timber for ribbed floor slab formwork is relatively large, resulting in high costs and low scaffolding erection efficiency.
The system adopts a nail-mounted formwork installation structure, which directly overlaps the support through the flange edge of the formwork and is fixed to the second support using through holes and nails, eliminating the need for wooden templates and timber, and achieving modular and rapid assembly.
It significantly reduces the amount of timber used, lowers costs, improves construction efficiency, enhances overall stability, and improves the aesthetics of the floor slab.
Smart Images

Figure CN224514726U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building formwork technology, specifically to a nail-mounted formwork installation structure. Background Technology
[0002] Ribbed floor slab formwork is a type of formwork used in building construction. It is mainly used for the construction of cast-in-place concrete two-way ribbed floor slabs and is suitable for construction of large-span and high-load spaces, such as underground garages, large shopping malls, multi-story factories, school buildings, and civil defense projects.
[0003] In existing technologies, a full-span scaffold is typically erected, then horizontal supports are installed at the top of the scaffold, timber is laid on the horizontal supports, wooden formwork is laid on the timber, and the formwork shell is laid on the wooden formwork according to its position. Finally, the gap between the formwork shell and the bottom edge of the formwork shell is filled with timber. The use of wooden formwork and timber is relatively large, resulting in high costs.
[0004] In existing technologies, scaffolding is generally used to support the bottom of the formwork. The top support of the scaffolding is usually supported on the four corners or four sides of the formwork. Since there is no standard to regulate the width of the flange edge of the formwork, the length of the cross bracing of the scaffolding varies with the width of the flange edge of the formwork. During construction, only cross-lock scaffolding can be used, which results in relatively low erection efficiency. Utility Model Content
[0005] The problem solved by this utility model is that the existing technology uses a large amount of wood templates and timber, resulting in high costs. This utility model provides a nail-mounted formwork installation structure.
[0006] This utility model is achieved through the following technical solution: a nail-mounted mold shell installation structure, comprising: The scaffolding has a first support at its top, which serves as the top support for the scaffolding. The second support part is provided in multiple sets, and the multiple sets of second support parts are arranged in parallel and spaced apart. The second support part is placed horizontally on the first support part. The second support part is made of wood and is made of a whole strip of wood or spliced together from multiple strips of wood. The mold shell includes a top surface and a ring of downwardly extending side surfaces. The top surface and the surrounding side surfaces form a cavity. The lower edge of the side surfaces extends horizontally outward to form a flange. The outer contour of the flange is rectangular. The vertical end face of the free end of the flange is the mating surface between the mold shells. Multiple through holes are provided at the flange, located near the edge of the flange. Multiple mold shells are arranged in a rectangular array. The lower surface of the flange edge of the mold shell abuts against the upper surface of the second support. The mold shell spans two parallel second supports. The spacing between adjacent second supports is the same as the width of the mold shell they support. The mating surfaces of adjacent mold shells are in close contact with each other, and the corners are aligned. The flange edge and side surface of adjacent mold shells directly form a cavity for forming a dense rib beam. Nails are provided on the mold shell. The nails include a nail body and a nail head. The nail body passes through a through hole and is driven downward into the second support. The nail head abuts against the upper opening of the through hole.
[0007] Furthermore, the first support includes a transverse support placed on the top support and wooden beams placed alternately on the transverse support, the wooden beams providing multi-point support to the second support.
[0008] Furthermore, the first support includes a lateral support placed on the top support, which directly provides multi-point support to the second support.
[0009] Furthermore, the width of the second support portion is greater than or equal to the distance from the through hole to the mating surface * 2 + 2 cm.
[0010] Furthermore, the width of the second support portion is ≥10cm.
[0011] Furthermore, the diameter of the through hole is 5-10 mm.
[0012] Furthermore, a countersunk hole structure for accommodating the top cap is provided at the upper opening of the through hole.
[0013] Furthermore, an adhesive tape is provided, which is attached above the mating surfaces of adjacent mold shells.
[0014] Furthermore, the width of the tape at least covers the through hole.
[0015] Furthermore, the distance from the side of the mold shell to the mating surface is defined as the flange edge width, which is 50mm-150mm.
[0016] The beneficial effects of this utility model are: 1. This utility model eliminates the traditional wooden template and the filling of wooden blocks between the formwork shells. The formwork shell flanges are directly overlapped for support, which greatly reduces the amount of wood used. The formwork shell flanges are provided with through holes, which, together with nails, quickly fix the formwork shells to the second support part, achieving precise horizontal positioning and enhancing overall stability. The formwork shells are arranged in a rectangular array, spanning across the parallel second support part, with the spacing matching the width of the formwork shells, to achieve modular and rapid assembly.
[0017] 2. The countersunk hole structure of this utility model makes the nail head flush with the flange edge, avoiding the concrete surface from protruding, and the tape covers the through hole and gap, effectively sealing the grout leakage channel and improving the aesthetics of the floor slab. Attached Figure Description
[0018] Figure 1 This is a top-view 3D view of the mold shell in Example 1.
[0019] Figure 2 This is a bottom-view 3D view of the mold shell in Example 1. Figure 3 This is a schematic diagram of a nail-mounted mold shell installation structure as described in Embodiment 1; Figure 4 for Figure 3 A magnified view of a portion of the image; Figure 5 This is a schematic diagram of a nail-mounted mold shell installation structure as described in Embodiment 2; Figure 6 for Figure 5 A magnified view of a portion of the image.
[0020] In the picture: 100 First support section; 101 Lateral support; 102 Timber; 200 Second Support Section; 300 Mold shell; 301 Mold shell top surface; 302 Mold shell side surface; 303 Cavity; 304 Flange edge; 305 Mating surface; 306 Through hole; 400 nails. 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. 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. Example
[0022] like Figure 1-4 As shown, it includes: scaffolding, the top of which is provided with a first support 100, the first support 100 being the top support of the scaffolding, the first support 100 including transverse supports 101 placed on the top support and timber 102 placed alternately on the transverse supports 101, each set of transverse supports 101 consisting of three parallel steel pipes, the timber 102 providing multi-point support to the second support 200.
[0023] The second support part 200 is provided in multiple sets, and the multiple sets of second support parts 200 are arranged in parallel and at intervals. The second support part 200 is placed horizontally on the first support part 100. The second support part 200 is made of wood and is made of a whole strip of wood or spliced together from multiple strips of wood. The mold shell 300 includes a top surface 301, and a downwardly extending side surface 302 is connected around the top surface 301. The top surface 301 and the side surface 302 together form a cavity 303. The lower edge of the side surface 302 extends outward horizontally to form a flange edge 304. The outer contour of the flange edge 304 is rectangular. The vertical end face of the free end of the outer edge of the flange edge 304 is the mating surface 305 between the mold shells 300. Multiple through holes 306 are provided at the flange edge 304 and are arranged near the edge of the flange edge 304. Multiple mold shells 300 are arranged in a rectangular array. The lower surface of the flange edge 304 of the mold shell 300 abuts against the upper surface of the second support part 200. The mold shell 300 spans two parallel second support parts 200. The spacing between adjacent second support parts 200 is the same as the width of the mold shell 300 it supports. The mating surfaces 305 of adjacent mold shells 300 are tightly abutted against each other, with corners aligned. The flange edge 304 and the side surface 302 of adjacent mold shells 300 directly form a cavity for forming a dense rib beam. A nail 400 is provided on the mold shell 300. The nail 400 includes a nail body and a nail head. The nail body passes through the through hole 306 and is driven downward into the second support part 200. The nail head abuts against the upper opening of the through hole 306.
[0024] This design utilizes the second support 200 to support the flange edge 304 of the mold shell 300. Through holes 306 are provided at the edge of the mold shell 300 to facilitate the insertion of nails 400. Nailing the mold shell 300 onto the second support 200 provides horizontal fixation and improves the overall stability of the mold shell 300. Furthermore, this design eliminates the need for wooden formwork. Because the mold shell 300 has a flange edge 304, the mating surfaces 305 abut against each other during installation, eliminating the need for timber 102 to fill the space between the bottom edges of the mold shell 300. This reduces the use of wooden formwork and timber 102, lowering costs.
[0025] In practical applications, the width of the second support 200 is greater than or equal to the distance from the through hole 306 to the mating surface 305 * 2 + 2 cm, ensuring that the nail 400 is not driven too close to the edge of the second support 200, and that there is at least a 1 cm distance between the nail and the edge.
[0026] In practical applications, the width of the second support 200 is ≥10cm, ensuring that the flange edge 304 of the mold shell 300 is at least 5cm long and rests on the second support 200, thus ensuring that the mold shell 300 will not deform under stress.
[0027] In practical applications, the diameter of the through hole 306 is 5-10mm. Generally, the through hole 306 is slightly larger than the outer diameter of the nail 400 and much smaller than the diameter of the top cap, ensuring that the nail 400 can be easily driven in and that no large horizontal gap is left.
[0028] In practical applications, the upper opening of the through hole 306 is provided with a countersunk hole structure to accommodate the top cap, so that the upper surface of the nail head is flush with the upper surface of the flange edge 304, making the concrete floor slab more aesthetically pleasing.
[0029] In practical applications, adhesive tape is also provided. The adhesive tape is applied above the mating surface 305 of adjacent mold shells 300. The adhesive tape can seal the gaps between the mold shells 300 and flatten them to improve the aesthetics of the floor slab formation.
[0030] In practical applications, the width of the tape at least covers the through hole 306.
[0031] In practical applications, the distance from the side surface 302 of the mold shell to the mating surface 305 is defined as the width of the flange edge 304, which is 50mm-150mm. Example
[0032] like Figure 5-6 As shown, the difference from Embodiment 1 is that the first support 100 includes a transverse support 101 placed on the top support, and the transverse support 101 directly provides multi-point support to the second support 200. This embodiment eliminates the wooden blocks 102 placed on the transverse support 101, and the wooden strips used in the second support 200 are appropriately thickened to meet the load-bearing requirements of the mold shell 300. Installation in this embodiment is more convenient than in Embodiment 1.
[0033] In summary, the nail-mounted formwork installation structure of this utility model eliminates the need for traditional wooden templates and filling timber between formwork sections. It directly supports the formwork by overlapping the flange edges, significantly reducing the amount of wood used. The formwork flange edges are provided with through holes, which, together with nails, allow the formwork to be quickly fixed to the second support, achieving precise horizontal positioning and enhancing overall stability. The formwork is arranged in a rectangular array, spanning across the parallel second support, with the spacing matching the width of the formwork, enabling modular and rapid assembly.
[0034] 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 the above embodiments are only for illustrating the technical concept and characteristics of this utility model, and are intended to enable those skilled in the art to understand and implement the content of this utility model. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.
Claims
1. A nail-mounted mold installation structure, characterized in that: include: The scaffolding has a first support (100) at its top, which serves as the top support for the scaffolding. The second support part (200) is provided in multiple sets, and the multiple sets of second support parts (200) are arranged in parallel and at intervals. The second support part (200) is placed horizontally on the first support part (100). The second support part (200) is made of wood and is made of a whole strip of wood or spliced together from multiple strips of wood. The mold shell (300) includes a top surface (301) and a side surface (302) extending downward around the top surface (301). The top surface (301) and the side surface (302) together form a cavity (303). The lower edge of the side surface (302) extends outward horizontally to form a flange (304). The outer contour of the flange (304) is rectangular. The vertical end face of the free end of the flange (304) is the mating surface (305) between the mold shells (300). A through hole (306) is provided at the flange (304). Multiple through holes (306) are provided and arranged near the edge of the flange (304). Multiple mold shells (300) are arranged in a rectangular array. The lower surface of the flange edge (304) of the mold shell (300) abuts against the upper surface of the second support part (200). The mold shell (300) spans two parallel second support parts (200). The spacing between adjacent second support parts (200) is the same as the width of the mold shell (300) it supports. The mating surfaces (305) of adjacent mold shells (300) are tightly attached to each other and the corners are aligned. The flange edge (304) and the side surface (302) of adjacent mold shells (300) directly form a cavity for forming a dense rib beam. A nail (400) is provided on the mold shell (300). The nail (400) includes a nail body and a nail head. The nail body passes through the through hole (306) and is driven downward into the second support part (200). The nail head abuts against the upper opening of the through hole (306).
2. A nail-on formwork mounting structure according to claim 1, wherein: The first support (100) includes a transverse support (101) placed on the top support and wooden blocks (102) placed alternately on the transverse support (101), the wooden blocks (102) providing multi-point support to the second support (200).
3. The nail-on form tieback assembly of claim 1, wherein: The first support (100) includes a lateral support (101) placed on the top support, which directly provides multi-point support to the second support (200).
4. A nail form construction according to any one of claims 1 to 3, wherein: The width of the second support (200) is greater than or equal to the distance from the through hole (306) to the mating surface (305) * 2 + 2 cm.
5. A nail form construction according to any one of claims 1 to 3, wherein: The width of the second support (200) is ≥10cm.
6. A nail form construction according to any one of claims 1 to 3, wherein: The diameter of the through hole (306) is 5-10 mm.
7. A nail form construction according to any one of claims 1 to 3, wherein: The upper opening of the through hole (306) is provided with a countersunk hole structure to accommodate the top cap.
8. A nail form construction according to any one of claims 1 to 3, wherein: An adhesive tape is also provided, which is attached above the mating surface (305) of the adjacent mold shell (300).
9. A nail-on formwork mounting structure according to claim 8, wherein: The width of the tape at least covers the through hole (306).
10. A nail-mounted mold installation structure according to any one of claims 1-3, characterized in that: The distance from the shell side (302) to the fitting surface (305) is defined as the flange edge (304) width, which is 50mm-150mm.