Slab strip template reinforcing tool for turnover laminated slab
By designing the scale square steel and template, and using tie rods and water-stop rings, the composite plate is stably fixed, solving the problems of screw leakage and reuse, and improving the efficiency and stability of the composite plate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FIFTH ENG DIV CORP LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-08
AI Technical Summary
In the use of existing composite panels, the exposed screws pose a risk of leakage, and the reinforcement tools cannot be reused, reducing the efficiency of the processed structure.
A reusable composite board strip template reinforcement tool was designed. It uses a scale square steel and template to be fixed by tie rods, and a water-stop ring to ensure sealing. It can be reused after removal.
It increases the service life of reinforcement tools, reduces the risk of leakage, and enhances the stability and convenience of the processed structure.
Smart Images

Figure CN224213770U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of composite board technology, specifically relating to a reusable composite board strip template reinforcement tool. Background Technology
[0002] In building construction, composite slabs are widely used. Reinforcing composite slabs with their strips is an essential part of the construction process. Composite slabs are a type of cast-in-place formwork consisting of fiber-reinforced cement pressure boards with galvanized steel mesh embedded in the middle and keel and steel truss welded together on the back. They are mainly used in building construction to replace traditional iron, steel, aluminum, and wooden formwork.
[0003] In the use of existing composite slabs, a reinforcement structure needs to be installed between the two composite slabs to ensure sealing during pouring. To improve the stability of the formwork positioning, bolts are installed between the two sets of composite slabs. After the equipment is poured, the bolts are deeply embedded in the concrete, but the bolts are exposed to the outside. There is a risk of leakage due to gaps between the bolts and the concrete. Moreover, the reinforcement tool cannot be reused in subsequent pours, resulting in a decrease in the efficiency of the processed structure. Therefore, we propose a reusable composite slab strip formwork reinforcement tool. Summary of the Invention
[0004] To address the shortcomings of existing reusable composite slab and formwork reinforcement tools, this utility model provides a reusable composite slab and formwork reinforcement tool. After the use of the square steel and formwork is completed and the concrete has fully set, the reinforcement device can be removed and directly reused on the next work surface, thus improving the service life of the reinforcement tool and solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: a reusable composite slab reinforcement tool with template, comprising two sets of composite slabs, with reinforcing steel bars installed inside the two sets of composite slabs for traction and fixation, concrete pads installed on the upper part of the two sets of composite slabs, a scale square steel installed on the upper part of the concrete pads, a cast-in-place concrete layer poured on the upper part of the composite slabs, a tie rod installed through the middle of the scale square steel, a water-stop ring sleeved on the middle of the tie rod, and a template installed at the lower end of the two sets of composite slabs, with a square steel installed at the lower end of the template through a support rod.
[0006] Furthermore, the water-stop ring includes a water-stop ring body, and a limiting buckle is fixedly connected to the outside of the water-stop ring body. The inner side of the limiting buckle is fitted and installed against the outside of the tie rod. The water-stop ring is located in the middle of the composite plate and the concrete pad.
[0007] Furthermore, the square steel ruler has scale grooves on both sides, and the square steel ruler is positioned at the center of the upper end of the two sets of laminated plates.
[0008] Furthermore, the tie rod includes a pre-embedded screw and a threaded rod. The pre-embedded screw is located between the composite slab and the cast-in-place concrete layer. The threaded rod is located at both ends of the pre-embedded screw. A fastening bolt is installed inside the threaded rod. The fastening bolt passes through the threaded rod and is threaded inside the pre-embedded screw.
[0009] Furthermore, the template is fitted and installed at the lower end of the connection between the two sets of composite plates, and the scale square steel is located at the upper end of the cast-in-place concrete layer.
[0010] Furthermore, a top washer and a top nut are sequentially installed on the outer side of the upper end of the tie rod. The top nut is threaded onto the outer side of the tie rod, and the top washer is installed between the scale square steel and the top nut. A bottom washer and a bottom nut are sequentially sleeved onto the outer side of the lower end of the tie rod. The bottom nut is threaded onto the outer side of the tie rod, and the bottom washer is installed between the square steel and the bottom nut. Beneficial effects
[0011] 1. This reusable composite slab reinforcement tool with template is installed on the upper end of the composite slab using a scale square steel plate, and the template is installed on the lower end of the composite slab. Tie rods are installed between the scale square steel plate and the template to tighten and fix them together. After the cast-in-place concrete layer is poured and the concrete has set, the reinforcement device can be removed and directly reused on the next work surface, thus improving the service life of the reinforcement tool.
[0012] 2. This reusable composite slab with formwork reinforcement tool allows for the sequential disassembly and transfer of the scale square steel and formwork to another working surface after the cast-in-place concrete layer is poured. The tightening bolts are then rotated and removed from the inside of the threaded rod, thus improving the convenience of cleaning the protruding parts of the tie rod. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of the present utility model;
[0014] Figure 2 This is a schematic diagram of the main body of this utility model without a cast-in-place concrete layer.
[0015] Figure 3 This is a partial side view diagram of the present invention;
[0016] Figure 4 This is a cross-sectional structural diagram of the present invention;
[0017] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0018] In the diagram: 1. Composite slab; 2. Reinforcing steel bar; 3. Concrete pad; 4. Square steel with scale; 5. Cast-in-place concrete layer; 6. Tie rod; 61. Embedded bolt; 62. Threaded rod; 63. Fastening bolt; 7. Water-stop ring; 71. Water-stop ring body; 72. Limiting buckle; 8. Template; 9. Support rod; 10. Bottom gasket; 11. Bottom nut; 12. Square steel; 13. Top gasket; 14. Top nut. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A reusable composite slab formwork reinforcement tool includes two sets of composite slabs 1. Reinforcing steel bars 2 are installed inside the two sets of composite slabs 1 for traction and fixation. After the cast-in-place concrete layer 5 is poured, the reinforcing steel bars 2 traction and fix the cast-in-place concrete layer 5 to the composite slab 1. Concrete blocks 3 are installed on the upper part of the two sets of composite slabs 1. A scale square steel bar 4 is installed on the upper part of the concrete blocks 3. The scale square steel bar 4 is positioned on the upper part of the concrete blocks 3. Adjusting the position of the scale square steel bar 4 moves the formwork 8 to the lower end of the composite slab 1. For calibration, a cast-in-place concrete layer 5 is poured and installed on the upper part of the composite slab 1. A tie rod 6 is installed through the middle of the scale square steel 4. The tie rod 6 drives the scale square steel 4 and the template 8 to shrink and fix each other. A water-stop ring 7 is sleeved on the middle of the tie rod 6. Templates 8 are installed at the lower ends of the two sets of composite slabs 1. The lower end of the template 8 is pulled by a support rod 9 to install a square steel 12. The square steel 12 drives the template 8 to press against the lower end of the composite slab 1. The template 8 reinforces and seals the connection between the two sets of composite slabs 1 during the pouring process.
[0021] Please see Figure 5The water-stop ring 7 includes a water-stop ring body 71. The water-stop ring body 71 is externally fixedly connected to a limiting buckle 72, and the inner side of the limiting buckle 72 is fitted to the outside of the tie rod 6. The water-stop ring 7 is located in the middle of the composite plate 1 and the concrete pad 3. The water-stop ring 7 is installed by sleeve on the outside of the tie rod 6. The water-stop ring body 71 is externally fixedly connected to a limiting buckle 72. After the water-stop ring body 71 is sleeved on the outside of the tie rod 6, the limiting buckle 72 is engaged on the outside of the tie rod 6. This ensures that the water-stop ring 7 maintains stability when positioned outside the tie rod 6, and avoids the position shift caused by the slippage of the water-stop ring 7 during the pouring of the cast-in-place concrete layer 5. After the equipment is poured, the tie rod 6 absorbs water and continues to expand, achieving a sealing and water-stopping effect. After the tie rod 6 is pre-reserved inside the cast-in-place concrete layer 5, the sealing between the tie rod 6 and the cast-in-place concrete layer 5 is improved.
[0022] Please see Figure 1 The square steel ruler 4 has scale grooves on both sides and is positioned in the center of the upper end of the two sets of composite plates 1. By having scale grooves on both sides of the square steel ruler 4, the position of the square steel ruler 4 on the upper end of the composite plate 1 can be ensured according to the position of the scale grooves when it is installed between the two sets of composite plates 1. Any deviation of the axis of the composite plate 1 can be detected and rectified in a timely manner.
[0023] Please see Figure 4 The tie rod 6 includes a pre-embedded tie rod 61 and a threaded rod 62. The pre-embedded tie rod 61 is located between the composite slab 1 and the cast-in-place concrete layer 5. The threaded rod 62 is located at both ends of the pre-embedded tie rod 61. Fastening bolts 63 are installed inside the threaded rod 62. The fastening bolts 63 penetrate the threaded rod 62 and are threaded inside the pre-embedded tie rod 61. The tie rod 6 passes through the interior of the scale square steel 4, template 8, and 15. After the cast-in-place concrete layer 5 is poured, when the equipment is disassembled, the protruding part of the tie rod 6 outside the cast-in-place concrete layer 5 needs to be cut off. This can be achieved by removing the fastening bolts 63 to control the stop between the threaded rod 62 and the pre-embedded tie rod 61, and then the protruding part of the tie rod 6 can be cut off, improving the convenience of cleaning the protruding part of the tie rod 6 later.
[0024] Please see Figure 3 The template 8 is fitted and installed at the lower end of the connection between the two sets of composite slabs 1. The scale square steel 4 is located at the upper end of the cast-in-place concrete layer 5. It is installed at the lower end of the composite slab 1 through the template 8 and at the upper end of the composite slab 1 through the concrete pad 3. In this way, the template 8 can block the gap between the two sets of composite slabs 1 and reduce the phenomenon of water leakage in the equipment.
[0025] Please see Figure 4A top washer 13 and a top nut 14 are sequentially installed on the outer side of the upper end of the tie rod 6. The top nut 14 is threaded onto the outer side of the tie rod 6. The top washer 13 is installed between the scale square steel 4 and the top nut 14. A bottom washer 10 and a bottom nut 11 are sequentially fitted onto the outer side of the lower end of the tie rod 6. The bottom nut 11 is threaded onto the outer side of the tie rod 6. The bottom washer 10 is installed between the square steel 12 and the bottom nut 11. After the tie rod 6 is installed through, rotating the bottom nut 11 or the top nut 14 can control the equipment to retract, ensuring that the scale square steel 4 and the template 8 are collected and processed when installed outside the composite plate 1.
[0026] Working principle: In use, a concrete pad 3 is installed on the upper part of the composite slab 1, and a scale square steel 4 is placed on top of the concrete pad 3. At the same time, the template 8 is installed on the lower part of the composite slab 1. Tie rods 6 are installed through the inside of the scale square steel 4 and the template 8. By observing the scale groove on the outside of the scale square steel 4, the distance between the scale square steel 4 and the two sets of composite slabs 1 can be adjusted. The tie rods 6 drive the water-stop ring 7 to move to the middle of the scale square steel 4 and the template 8. The bottom nut 11 and the top nut 14 are tightened to control the scale square steel 4 and the template 8 to be pressed and fixed inside the equipment. A cast-in-place concrete layer 5 is poured between the composite plate 1 and the scale square steel 4. After the pouring is completed, the fastening bolts 63 are removed, that is, the threaded rod 62 is taken out from the outside of the pre-embedded bolt 61. At this point, the square steel 12 drives the template 8 to be taken out from the lower end of the composite plate 1, and the scale square steel 4 is taken out from the upper end. Then the equipment can be transferred to another place and re-operated.
Claims
1. A reusable composite slab with formwork reinforcement tool, comprising two sets of composite slabs (1), wherein reinforcing steel bars (2) for traction and fixation are installed inside the two sets of composite slabs (1), and concrete pads (3) are installed on the upper part of the two sets of composite slabs (1), characterized in that: A scale square steel (4) is installed on the upper part of the concrete pad (3), a cast-in-place concrete layer (5) is poured and installed on the upper part of the composite plate (1), a tie rod (6) is installed through the middle of the scale square steel (4), a water-stop ring (7) is sleeved on the middle of the tie rod (6), a template (8) is installed at the lower end of the two sets of composite plates (1), and a square steel (12) is installed at the lower end of the template (8) by a support rod (9).
2. The reusable composite slab strip template reinforcement tool according to claim 1, characterized in that: The water-stop ring (7) includes a water-stop ring body (71), and the water-stop ring body (71) is fixedly connected to a limiting buckle (72) on the outside. The inner side of the limiting buckle (72) is fitted to the outside of the tie rod (6). The water-stop ring (7) is located in the middle of the composite plate (1) and the concrete pad (3).
3. The reusable composite board strip template reinforcement tool according to claim 1, characterized in that: The square steel ruler (4) has scale grooves on both sides, and the square steel ruler (4) is positioned at the center of the upper end of the two sets of composite plates (1).
4. The reusable composite slab strip template reinforcement tool according to claim 1, characterized in that: The tie rod (6) includes a pre-embedded screw rod (61) and a threaded rod (62). The pre-embedded screw rod (61) is located between the composite plate (1) and the cast-in-place concrete layer (5). The threaded rod (62) is set at both ends of the pre-embedded screw rod (61). A fastening bolt (63) is installed inside the threaded rod (62). The fastening bolt (63) passes through the threaded rod (62) and is threaded inside the pre-embedded screw rod (61).
5. The reusable composite slab strip template reinforcement tool according to claim 1, characterized in that: The template (8) is fitted and installed at the lower end of the connection between the two sets of composite plates (1), and the scale square steel (4) is located at the upper end of the cast-in-place concrete layer (5).
6. The reusable composite slab strip template reinforcement tool according to claim 1, characterized in that: A top washer (13) and a top nut (14) are sequentially installed on the outside of the upper end of the pull rod (6). The top nut (14) is threaded onto the outside of the pull rod (6). The top washer (13) is installed between the scale square steel (4) and the top nut (14). A bottom washer (10) and a bottom nut (11) are sequentially fitted onto the outside of the lower end of the pull rod (6). The bottom nut (11) is threaded onto the outside of the pull rod (6). The bottom washer (10) is installed between the square steel (12) and the bottom nut (11).