A counter-pull connection member for a formwork wall

Abstract

The utility model relates to the technical field of building construction, and specifically discloses a kind of sheathing wall's counter-pull connecting component, including Z type counter-pull piece and assembly type welding panel, Z type counter-pull piece includes flat plate, upper vertical plate and lower vertical plate, and upper vertical plate and lower vertical plate are all provided with counter-pull connecting hole, and assembly type welding panel includes upper clamping plate and lower clamping plate, and the both ends of upper clamping plate and lower clamping plate are all fixedly connected by bolt, and upper clamping plate and lower clamping plate are respectively arranged on flat plate top and bottom.The connecting piece of device of the present application adopts the unique Z letter type structure, the structure can more evenly disperse tension when being stressed, and the Z letter type structure is higher in the degree of fit with reinforcement cage, so as to facilitate the formation of stable overall structure with reinforcement cage;By designing adjustable installation position's assembly type welding panel on Z letter type counter-pull piece, assembly type welding panel and reinforcement cage are contact welded, to avoid that counter-pull piece and reinforcement cage directly weld and lead to the surface of counter-pull piece brittle and affect the pulling force performance.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a tie-connector component for a molded wall. Background Technology

[0002] Currently, formwork wall systems are widely used in modern building structures due to their convenient construction and high-quality forming. The core of this system is the on-site assembly of formwork, the binding of reinforcing cages inside, the formation of a cavity, and the subsequent pouring of concrete to ultimately create a reinforced concrete wall. In this process, tie rods are crucial components; their ends are fixed to the formwork on both sides, passing through the reinforcing cage inside the cavity. They are used to withstand the enormous lateral pressure generated during concrete pouring, preventing formwork bulging and deformation, and ensuring the geometric accuracy of the wall.

[0003] In existing technologies, traditional tie rods often employ simple straight-bar bolts or sheet-like tie members. These components have significant drawbacks: First, their connection to the internal reinforcing cage is typically achieved through direct welding. The high temperatures generated during welding alter the microstructure of the tie rod's base material, leading to embrittlement of the heat-affected zone and a significant reduction in tensile strength, thus creating safety hazards. Second, the simple straight-bar structure exhibits pronounced stress concentration under load, resulting in poor fit with the three-dimensional mesh-like reinforcing cage. This not only makes installation inconvenient but also hinders the formation of a stable, coordinated load-bearing structure with the reinforcing cage.

[0004] In addition, although some improved integrated tie rods have improved structural strength, their welding positions are fixed and cannot be flexibly adjusted according to the actual distribution of the reinforcing bars in the steel cage. This results in poor construction adaptability and problems such as the tie rods being unable to be installed or being poorly welded due to conflicts between their positions and the main reinforcing bars.

[0005] Therefore, there is an urgent need in this field for a tie rod connection that can guarantee excellent mechanical properties, enable convenient and reliable installation, and effectively avoid welding heat damage. Utility Model Content

[0006] In view of the above-mentioned technical problems in related technologies, this utility model provides a tie-connector for a molded wall, which can solve the above problems.

[0007] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows: A tie-connector for a formwork wall includes a Z-shaped tie and an assembled welded panel. The Z-shaped tie includes a flat plate, an upper vertical plate, and a lower vertical plate. Both the upper and lower vertical plates have tie-connection holes. The assembled welded panel includes an upper clamping plate and a lower clamping plate. Both ends of the upper and lower clamping plates are fixedly connected by bolts. The upper and lower clamping plates are respectively located at the top and bottom of the flat plate.

[0008] Furthermore, the upper and lower surfaces of the flat plate are integrally formed with reinforcing convex surfaces A and B, respectively, and the surfaces of reinforcing convex surfaces A and B are integrally formed with several convex ridges.

[0009] Furthermore, several grooves are provided on the inner surfaces of both the upper and lower clamping plates, and the grooves are fitted into the protruding ridges.

[0010] Furthermore, the cross-section of the convex ridge is conical or semi-circular.

[0011] Furthermore, reinforcing ribs are welded to the inner sides of the right-angle ends of the flat plate and the upper vertical plate, and to the inner sides of the right-angle ends of the flat plate and the lower vertical plate.

[0012] Furthermore, four protrusions are fixedly installed on the outer vertical end faces of both the upper and lower vertical plates, with a protrusion thickness of 2mm. The beneficial effects of this utility model are as follows: The connecting parts of the device in this application adopt a unique Z-shaped structure, which can distribute the tensile force more evenly when subjected to force. The Z-shaped structure has a higher degree of fit with the steel cage, which makes it easier to form a stable overall structure with the steel cage. By designing an adjustable installation position assembly welding panel on the Z-shaped tie rod, the assembly welding panel is welded to the reinforcing cage, avoiding the surface embrittlement of the tie rod and affecting the pull-out force performance caused by direct welding between the tie rod and the reinforcing cage. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] Figure 1 This is a three-dimensional view of a tension connection component; Figure 2 This is a structural schematic diagram of a Z-type tie rod.

[0016] In the picture: 1. Flat plate; 101. Upper vertical plate; 102. Lower vertical plate; 2. Reinforcing rib block; 3. Pull-out connection hole; 4. Upper clamping plate; 5. Lower clamping plate; 6. Reinforcing convex surface A; 7. Protruding ridge; 8. Reinforcing convex surface B; 9. Protrusion. Detailed Implementation

[0017] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0018] like Figure 1-2 As shown, this utility model discloses a tie-connector for a molded wall, comprising two main parts: a Z-shaped tie member and an assembled welded panel. The Z-shaped tie member is integrally formed from a horizontal flat plate 1, an upper vertical plate 101 extending vertically upward from one end of the flat plate, and a lower vertical plate 102 extending vertically downward from the other end of the flat plate, forming an overall "Z" shape. This unique Z-shaped structure allows the force flow to be transmitted and dispersed more evenly and smoothly along its zigzag path when subjected to tensile force, effectively avoiding stress concentration and thus improving the overall mechanical properties of the component. Meanwhile, this shape has a higher fit with the three-dimensional grid structure of the steel cage, making it easier to install and position. Four protrusions 9 are fixedly installed on the outer vertical end faces of the upper vertical plate 101 and the lower vertical plate 102. The thickness of the protrusions 9 is set to 2mm. The protrusions 9 are used to protect the outer vertical end faces of the upper vertical plate 101 and the lower vertical plate 102. The four protrusions 9 are distributed in a four-corner pattern, forming a protective layer on the outer vertical end faces of the upper vertical plate 101 and the lower vertical plate 102.

[0019] To significantly improve the bending stiffness and load-bearing capacity of the plate 1, reinforcing convex surfaces A6 and B8 are integrally formed on the upper and lower surfaces, respectively. Furthermore, multiple regularly arranged convex ridges 7 are integrally formed on the surfaces of both reinforcing convex surfaces A6 and B8. In this embodiment, the cross-section of these convex ridges 7 is preferably semi-circular, but can also be conical or other shapes that provide anti-slip capability. As one of the key improvements in this embodiment, triangular reinforcing ribs 2 are welded to the inner sides of the right-angle connection between the plate 1 and the upper vertical plate 101, and to the inner sides of the right-angle connection between the plate 1 and the lower vertical plate 102. These reinforcing ribs 2 greatly enhance the structural strength of the Z-shaped tie members at the right-angle locations where the stress is greatest, preventing them from deforming or tearing under the enormous lateral pressure of the concrete. One or more tie rod connection holes 3 are provided on both the upper vertical plate 101 and the lower vertical plate 102 for inserting tie rods, thereby fastening the components located on both sides of the formwork wall.

[0020] The assembled welded panel includes an upper clamping plate 4 and a lower clamping plate 5. The inner surfaces of the upper clamping plate 4 and the lower clamping plate 5 (i.e. the surfaces that contact the Z-shaped tie members) are all machined with several grooves. The shape, size and arrangement of these grooves correspond precisely to the protruding ridges 7 on the Z-shaped tie member plate 1, so that the two can be fitted together.

[0021] Assembly and working process: Pre-positioning and connection: First, place the Z-shaped tie rod at the predetermined position in the reinforcing cage, so that its Z-shaped structure is clamped onto the horizontal reinforcing bar. Then, place the upper clamping plate 4 and the lower clamping plate 5 of the assembled welded panel on the top and bottom of the plate 1 respectively, so that the groove on the inner side of the clamping plate and the protrusion 7 on the plate interlock. This protrusion-groove structure not only provides strong shear resistance and prevents the clamping plate from shifting during use, but also plays an auxiliary positioning role.

[0022] Tightening and Adjustment: Pass the bolts through the pre-drilled mounting holes at both ends of the upper clamping plate 4 and the lower clamping plate 5, and tighten them with nuts. Since the upper clamping plate 4 and the lower clamping plate 5 are connected by bolts, their clamping positions on the flat plate 1 of the Z-type tie rod are adjustable. This design allows construction workers to flexibly adjust the clamping points of the welding panel according to the actual position of the reinforcing bars in the steel cage, avoiding the main reinforcing bars or finding the most suitable welding position, greatly improving the adaptability and convenience of construction.

[0023] Welding Fixing: After proper positioning and tightening, the outer surfaces of the upper clamping plate 4 and lower clamping plate 5 are welded to the reinforcing bars of the reinforcing cage. This avoids directly welding the Z-shaped tie rod to the reinforcing cage. The high temperature generated by direct welding would severely alter the metallographic structure of the tie rod's base material (usually Q235 or higher strength steel), causing embrittlement of the heat-affected zone and significantly reducing its pull-out resistance, posing a safety hazard. Indirect welding via assembled welding panels confines the heat-affected zone to the panels, protecting the mechanical properties of the core load-bearing component—the Z-shaped tie rod—from damage.

[0024] Tie rods and pouring: Finally, pass the tie rods through the corresponding tie rod connection holes 3 on the Z-shaped tie rods on both sides, and install and tighten the nuts to complete the entire formwork support system. Concrete pouring can then proceed.

[0025] The mold wall tie connection component in this embodiment achieves the following significant advantages through the coordinated design of the Z-shaped tie members and the assembled welded panel: Excellent stress performance: The Z-shaped structure has a reasonable stress distribution. Combined with reinforced convex surfaces, convex edges and right-angle reinforcing ribs, it has high overall stiffness and strength and can effectively disperse tensile force.

[0026] Easy to construct: The Z-shaped structure fits the steel cage well and is easy to install; the assembled panel position is adjustable and highly adaptable.

[0027] Reliable quality: The use of assembled panels for indirect welding fundamentally eliminates the problem of embrittlement of tie rods caused by welding heat damage, ensuring the pull-out performance and safety of the components, and improving the overall construction quality of the wall.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tie-connector for a molded wall, characterized in that, The assembly includes a Z-shaped tie rod and an assembled welded panel. The Z-shaped tie rod includes a flat plate (1), an upper vertical plate (101), and a lower vertical plate (102). Both the upper vertical plate (101) and the lower vertical plate (102) are provided with tie rod connection holes (3). The assembled welded panel includes an upper clamping plate (4) and a lower clamping plate (5). Both ends of the upper clamping plate (4) and the lower clamping plate (5) are fixedly connected by bolts. The upper clamping plate (4) and the lower clamping plate (5) are respectively located at the top and bottom of the flat plate (1).

2. The tie-connector member for a molded wall according to claim 1, characterized in that, The upper and lower surfaces of the plate (1) are integrally formed with reinforcing convex surfaces A (6) and B (8), respectively, and the surfaces of the reinforcing convex surfaces A (6) and B (8) are integrally formed with several convex ridges (7).

3. The tie-connector member for a molded wall according to claim 2, characterized in that, The inner surfaces of the upper clamping plate (4) and the lower clamping plate (5) are provided with several grooves, which are fitted together with the protruding ridge (7).

4. The tie-connector member for a molded wall according to claim 2, characterized in that, The cross-section of the protruding ridge (7) is conical or semi-circular.

5. The tie-connector member for a molded wall according to claim 1, characterized in that, Reinforcing ribs (2) are welded to the inner sides of the right-angle ends of the flat plate (1) and the upper vertical plate (101) and the lower vertical plate (102).

6. The tie-connector member for a molded wall according to claim 1, characterized in that, Four protrusions (9) are fixedly installed on the outer vertical end faces of the upper vertical plate (101) and the lower vertical plate (102), and the thickness of the protrusions (9) is set to 2mm.

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