A formwork reinforcing device for fair-faced concrete

Abstract

A formwork reinforcing device for fair-faced concrete belongs to the technical field of building construction, and comprises pull rods arranged in formworks and formwork reinforcing assemblies arranged outside the formworks. Two ends of each of the pull rods are connected and fastened to the formwork reinforcing assemblies through reinforcing connecting rods. The reinforcing connecting rods comprise rod bodies. One end of each of the rod bodies is internally hollow, and the hollow end wall is provided with female threads. The other end of each of the rod bodies is externally provided with male threads for assembling fasteners. Two ends of each of the pull rods are threadedly connected to the female-threaded ends of the rod bodies. The device has high assembly efficiency and a stable reinforcing system. Meanwhile, the device can compress the gaps between the formworks, effectively avoid slurry leakage, and the pull rods arranged in the formworks are not exposed, which can reduce the process of drilling and cutting off the exposed screw rod heads, thereby further improving the construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and relates to a formwork reinforcement device, particularly to a formwork reinforcement device for fair-faced concrete. Background Technology

[0002] Currently, in the construction of cast-in-place reinforced concrete building structures, fair-faced concrete is increasingly being chosen for projects due to its excellent appearance, saving a significant amount of plastering mortar and decoration labor, fundamentally solving common problems such as hollowing and falling off of plastering mortar in beams, slabs and columns, and significantly improving project quality.

[0003] Fair-faced concrete requires a single pour to achieve a smooth, unrepaired surface. Traditional reinforcement methods rely on tie rods (threaded rods), but these rod holes are prone to grout leakage, and exposed rod heads must be drilled and removed, affecting aesthetics and complicating the process. Existing technologies mostly use square and round buckle structures for reinforcement, but channel steel is still needed at the bottom, making operation complex and resulting in insufficient connection strength.

[0004] Therefore, in order to solve these problems, this utility model proposes a formwork reinforcement device for fair-faced concrete. Summary of the Invention

[0005] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a formwork reinforcement device for fair-faced concrete, which solves the technical problems of easy grout leakage of tie bolts, unstable reinforcement and exposed tie rods in the formwork reinforcement process of fair-faced concrete.

[0006] To achieve the above and other related objectives, this utility model provides a formwork reinforcement device for fair-faced concrete, including tie rods installed inside the formwork and formwork reinforcement components outside the formwork. Both ends of each tie rod are connected and fastened to the formwork reinforcement components through reinforcement connecting rods. Each reinforcement connecting rod includes a rod body, one end of which is hollow and has a female thread on the inner wall of the hollow end, and the other end has a male thread on the outer wall for mounting fasteners. Both ends of each tie rod are threadedly connected to the female threaded end of the rod body.

[0007] Preferably, in any of the above embodiments, the rod body has two symmetrical square openings at its middle.

[0008] In any of the above embodiments, it is preferred that the length of the female threaded section on the rod body is 4 to 6 cm and the inner diameter of the female threaded section is 5 to 7 mm.

[0009] In any of the above embodiments, it is preferred that the length of the female threaded section on the rod body is 5cm and the inner diameter of the female threaded section is 6mm.

[0010] In any of the above embodiments, it is preferred that the two ends of the pull rod are symmetrically provided with threads that match the female thread.

[0011] In any of the above embodiments, the preferred embodiment is that the template reinforcement component includes several square timbers, which are evenly arranged on the outside of the template, and the male threaded end of the reinforcement connecting rod extends out of the square timbers and is clamped and fixed by two rows of horizontally arranged steel pipes.

[0012] In any of the above embodiments, the preferred embodiment is that the fastener includes two butterfly buckles and two nuts. The two butterfly buckles overlap and are screwed into the male threaded section of the reinforcing connecting rod, and then tightened by the double nuts to fasten the steel pipe.

[0013] As described above, the formwork reinforcement device for fair-faced concrete of this utility model has the following beneficial effects:

[0014] 1. In this utility model, the template reinforcement device has high assembly efficiency, the connecting rod is simple to connect with the template reinforcement component, and can achieve rapid assembly without additional drilling.

[0015] 2. In this utility model, the reinforcement system has high stability. The female threaded connecting rod achieves bidirectional force through the internal thread design. A pair of female threaded connecting rods symmetrically reinforce the fair-faced concrete formwork, resulting in high stability of the formwork reinforcement system.

[0016] 3. In this utility model, the concrete surface is flat and does not require repair. At the same time, the reinforcing connecting rod can press the gap of the formwork to prevent grout leakage. Furthermore, the tie rods inside the formwork are not exposed, resulting in strong overall rigidity. After demolding, the structural lines are straight, the surface color is uniform, and the concrete surface quality is good. Attached Figure Description

[0017] Figure 1 The diagram shown is a structural schematic of this utility model.

[0018] Figure 2 The diagram shows a structural schematic of a reinforced connecting rod.

[0019] Component designation explanation

[0020] 1- Template; 2- Tie rod; 3- Reinforcing connecting rod; 31- Rod body; 32- Female thread; 33- Male thread; 34- Square head; 4- Square timber; 5- Steel pipe; 6- Butterfly buckle; 7- Nut. Detailed Implementation

[0021] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0022] Please see Figures 1 to 2It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0023] Please see Figure 1-2 This utility model provides a formwork reinforcement device for fair-faced concrete, including a formwork 1 with symmetrically arranged pre-drilled holes in the center. A cross-shaped tie rod 2 is fitted inside the formwork 1, and a formwork reinforcement assembly is provided outside the formwork 1 to reinforce it. To connect the formwork reinforcement assembly and the tie rod 2, thereby fixing the formwork 1 by tightening the formwork reinforcement assembly, a reinforcement connecting rod 3 is designed in this embodiment. One end of the reinforcement connecting rod 3 extends into the formwork 1 and is threadedly connected to the tie rod 2, while the other end is located outside the formwork reinforcement assembly and is fixed by fasteners. Adjusting the fasteners regulates the pressure between the formwork reinforcement assembly and the formwork 1, thereby ensuring stable fixation of the formwork 1, pressing the formwork 1, and preventing leakage.

[0024] In this embodiment, the reinforcing connecting rod 3 includes a rod body 31. One end of the rod body 31 is hollow, and the inner wall of the hollow end is provided with a female thread 32. The hollow design of one end of the reinforcing connecting rod 3 can reduce weight. The outer walls of both ends of the pull rod 2 are provided with threads that match the female thread 32. The ends of the two reinforcing connecting rods 3 with the female thread 32 pass through the reserved holes on the template 1 and enter the template 1 to connect with the two ends of the pull rod 2.

[0025] The outer wall of the other end of the reinforcing connecting rod 3 is provided with a male thread 33 for mounting fasteners. After one end of the male thread 33 of the reinforcing connecting rod 3 extends out of the template 1, double rows of horizontal steel pipes 5 are set on both sides of the reinforcing connecting rod 3 to clamp the reinforcing connecting rod 3. Two butterfly buckles 6 and two nuts 7 are screwed into the male thread 33 in sequence. The butterfly buckles 6 overlap and buckle in opposite directions to lock the steel pipes 5. Tighten the double nuts 7. The tightening force should be moderate during tightening, so as to achieve symmetrical reinforcement of the fair-faced concrete template 1.

[0026] In this embodiment, the length of the rod 31 of the female thread 32 is 5cm, the inner diameter is 6mm, the pitch is 2cm, and the depth is 1mm.

[0027] Of course, the dimensions of the female thread 32 are not limited to this and can be adjusted according to the actual construction situation. For example, the length of the shank 31 of the female thread 32 is 4-6cm, 5-7mm, 4-6cm, the pitch is 2-3mm, and the depth is 1-2mm.

[0028] The length of the male thread 33 is twice the length of the female thread 32, but is not limited to twice the length of the female thread 32. It can be adjusted according to the actual construction situation.

[0029] In this embodiment, the number of tie rods 2 and the number of reinforcing connecting rods 3 that are matched with tie rods 2 can be adjusted according to the actual construction to enhance the reinforcement effect on template 1.

[0030] In this embodiment, the reinforcing connecting rod 3 is a solid rod body 31, which can enhance the torsional resistance of the female thread 32 connecting rod, preferably the torsional transmission of the female thread 32 connecting rod, and improve the stability of the reinforcing device.

[0031] In this embodiment, the design of the reinforcing connecting rod 3 can improve the efficiency and strength of the formwork 1 reinforcement system and enhance the appearance quality of the concrete. Simultaneously, the reinforcing connecting rod 3 extends into the formwork 1 and connects with the matching tie rod 2 inside the formwork 1, ensuring that the tie rod 2 is not exposed, thereby reducing the need for drilling and cutting off exposed threaded rod heads and improving work efficiency.

[0032] As a further description of the above embodiment, the outer diameter of the end of the rod 31 with the female thread 32 gradually increases from the end of the rod 31 towards the center of the rod 31. That is, the outer wall of the end of the rod 31 with the female thread 32 is designed to be inclined, so that the rod 31 can pass through the reserved hole and enter the template 1. The outer diameter of the solid section of the rod 31 is equal to the diameter of the reserved hole, thereby preventing leakage.

[0033] As a further description of the above embodiment, the middle part of the rod body 31 is provided with two square openings 34 that are symmetrical about the center line of the rod body 31. The design of the square openings 34 makes it easier to tighten and apply force with tools such as wrenches, thereby making it easier to tighten and reinforce the connecting rod 3.

[0034] As a further description of the above embodiment, in order to reduce the pressure of the steel pipe 5 on the template 1, enhance the bending strength and rigidity of the template 1, and thus ensure the stability of the template 1 during concrete pouring and prevent deformation or collapse, a square timber 4 is added between the template 1 and the steel pipe 5 in this embodiment. Specifically, several square timbers 4 are evenly arranged on the outside of the template 1, and the male thread 33 end of the reinforcing connecting rod 3 extends out of the square timber 4 and is clamped and fixed by double rows of horizontally arranged steel pipes 5.

[0035] In summary, the usage method of the fair-faced concrete formwork reinforcement device is as follows:

[0036] 1. After the female thread 32 end of the reinforcing connecting rod 3 passes through the reserved hole, it is symmetrically tightened with the matching tie rod 2 inside the template 1. When tightening, the tightening force should be appropriate to ensure that the distance between the end of the tie rod 2 and the inner wall of the template 1 is 1cm.

[0037] 2. Place several 5×10cm vertical square timbers 4 evenly on the back of the outer side of template 1, with a spacing of 20cm between two adjacent square timbers 4. Then, place double rows of horizontal φ48 steel pipes 5 on both sides of the reinforcing connecting rod 3 to clamp the reinforcing connecting rod 3.

[0038] 3. Screw two butterfly buckles 6 and two nuts 7 into the male thread 33 section of the reinforcing connecting rod 3 in sequence. The butterfly buckles 6 overlap and lock onto the steel pipe 5. Tighten the double nuts 7. The tightening force should be moderate when tightening.

[0039] In summary, the device of this utility model has high assembly efficiency and a highly stable reinforcement system. Simultaneously, it can tighten the gaps in the template, effectively preventing grout leakage. Furthermore, the tie rods inside the template are not exposed, reducing the need for drilling and cutting exposed threaded rod heads, thereby further improving construction efficiency. Therefore, this utility model effectively overcomes the various shortcomings of existing technologies and has high industrial application value.

[0040] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A formwork reinforcement device for fair-faced concrete, characterized in that: The assembly includes a tie rod (2) installed inside the template (1) and a template reinforcement component outside the template (1). Both ends of each tie rod (2) are connected and fastened to the template reinforcement component through a reinforcement connecting rod (3). The reinforcement connecting rod (3) includes a rod body (31). One end of the rod body (31) is hollow inside and has a female thread (32) on the inner wall of the hollow end. The other end has a male thread (33) on the outer wall for mounting fasteners. Both ends of each tie rod (2) are threaded to the female thread (32) end of the rod body (31).

2. The formwork reinforcement device for fair-faced concrete according to claim 1, characterized in that: The rod (31) has two symmetrical square openings (34) in the middle.

3. The formwork reinforcement device for fair-faced concrete according to claim 1, characterized in that: The length of the female thread (32) section on the rod body (31) is 4 to 6 cm, and the inner diameter of the female thread (32) section is 5 to 7 mm.

4. The formwork reinforcement device for fair-faced concrete according to claim 3, characterized in that: The length of the female thread (32) section on the rod body (31) is 5cm, and the inner diameter of the female thread (32) section is 6mm.

5. The formwork reinforcement device for fair-faced concrete according to claim 1, characterized in that: The two ends of the pull rod (2) are symmetrically provided with threads that match the female thread (32).

6. The formwork reinforcement device for fair-faced concrete according to claim 1, characterized in that: The template reinforcement component includes several square timbers (4), which are evenly arranged on the outside of the template (1). The male thread (33) end of the reinforcement connecting rod (3) extends out of the square timbers (4) and is clamped and fixed by two rows of horizontally arranged steel pipes (5).

7. The formwork reinforcement device for fair-faced concrete according to claim 6, characterized in that: The fasteners include two butterfly buckles (6) and two nuts (7). The two butterfly buckles (6) overlap and are screwed into the male thread (33) section of the reinforcing connecting rod (3) and then tightened by the double nuts (7) to fasten the steel pipe (5).

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