An adjustable pre-embedded footing structure

Abstract

This utility model provides an adjustable pre-embedded anchor structure, relating to the field of building engineering technology, comprising: a pre-embedded base plate for positioning and fixing to the surface of a building structure; an adjustment hole formed on the pre-embedded base plate; and a pre-embedded support leg movably inserted into the adjustment hole, one end of the support leg extending into the building structure, and the other end welded to the pre-embedded base plate. The construction method includes the following steps: S1: Positioning and fixing the pre-embedded base plate to the surface of the building structure; S2: Inserting one end of the pre-embedded support leg through the adjustment hole on the pre-embedded base plate and extending it into the building structure; S3: Adjusting the horizontal position of the pre-embedded support leg through the adjustment hole, so that the pre-embedded support leg is fully inserted into the building structure, with the other end flush with the upper surface of the pre-embedded base plate; S4: Welding the pre-embedded support leg to the pre-embedded base plate; S5: Repeating steps S2-S4 until all pre-embedded support legs are installed. The advantages of this utility model are flexible adjustment, high precision, and convenient construction.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to an adjustable pre-embedded anchor structure. Background Technology

[0002] In building construction, embedded footings are key components connecting the superstructure and foundation, and their installation accuracy directly affects the quality of subsequent structural assembly and the overall structural safety. Traditional embedded footing design typically involves pre-welding embedded metal plates and legs, requiring the entire structure to be positioned in the predetermined location during installation.

[0003] However, when the construction scenario involves large-diameter, high-density, or complexly distributed steel reinforcement structures, traditional pre-embedded methods have the following significant drawbacks:

[0004] Because the embedded support legs and metal plates are pre-fixed, the position of the support legs cannot be adjusted. If the support legs interfere with the reinforcing steel bars in the structure, to ensure the integrity of the steel structure and avoid bending damage to the support legs or displacement of the reinforcing steel bars, the construction personnel have to adjust the overall position of the embedded metal plates, causing the metal plates to be misaligned in the horizontal direction. If the project has high requirements for installation error, such as requiring an error of less than 5mm, the misalignment requires plate splicing, i.e., additional cutting of steel plates and secondary welding to compensate for the misalignment gap.

[0005] However, the plate splicing process requires additional manpower and materials, and extends the construction period, resulting in increased costs and time. Furthermore, secondary welding can easily cause stress concentration at the connection between the metal plate and the support leg, reducing the load-bearing capacity of the embedded parts. Long-term use may lead to structural safety risks and pose structural safety hazards. Moreover, the plate splicing process is a post-event remedy and cannot completely eliminate the error caused by the initial misalignment, which may still affect the subsequent structural assembly, making it difficult to guarantee accuracy.

[0006] Therefore, there is an urgent need for an adjustable pre-embedded anchor structure to solve the above-mentioned technical problems. Utility Model Content

[0007] The purpose of this utility model is to provide an adjustable pre-embedded anchor structure to solve the technical problems in the prior art where the lack of a solution that can flexibly adjust the relative position of the pre-embedded legs and the metal plate leads to the inability to simultaneously meet the dual requirements of avoiding interference with reinforcing bars and ensuring installation accuracy. This results in low installation efficiency, poor accuracy, and high construction costs for pre-embedded anchor plates in complex reinforced concrete structures. The various technical effects of the preferred technical solution provided by this utility model are detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] This utility model provides an adjustable pre-embedded anchor structure, comprising:

[0010] An embedded base plate, which is used for positioning and fixing to the surface of the building structure;

[0011] An adjustment hole is provided on the embedded base plate for the embedded support leg to pass through and for adjusting the horizontal position of the embedded support leg.

[0012] The pre-embedded support leg is movably inserted into the adjustment hole. One end of the pre-embedded support leg is used to extend into the building structure, and the other end can be welded and fixed to the pre-embedded base plate.

[0013] Preferably, both the pre-embedded support leg and the adjustment hole are configured to include at least one, and the pre-embedded support leg and the adjustment hole are configured in a one-to-one correspondence.

[0014] Preferably, the adjustment hole has a cross-shaped structure.

[0015] Preferably, the intersection of the "+" shaped structure is provided with a rounded corner structure.

[0016] Preferably, the gap between the width of the adjustment hole and the diameter of the pre-embedded support leg is no greater than 2mm.

[0017] Preferably, one end of the pre-embedded support leg that extends into the building structure is provided with a hook structure, which is used to enhance the connection strength between the pre-embedded support leg and the building structure.

[0018] Preferably, the end of the pre-embedded support leg away from the interior of the building structure has a flat end face, which is used to be flush with and welded to the upper surface of the pre-embedded base plate.

[0019] Preferably, the embedded base plate is made of Q235 steel.

[0020] This utility model provides an adjustable pre-embedded anchor structure. By setting a pre-embedded base plate, adjustment holes, and pre-embedded legs, the base plate is used for positioning and fixing to the building structure surface. The adjustment holes are formed on the base plate for the pre-embedded legs to pass through. The pre-embedded legs engage with the adjustment holes through a movable manner, achieving adjustable horizontal position of the pre-embedded legs. This solves the problem of interference with reinforcing bars caused by the fixed connection between the legs and the pre-embedded plate in traditional pre-embedded anchor structures. The structure is simple and practical, requiring no complex adjustment mechanism, reducing manufacturing costs and construction difficulty. During construction, the pre-embedded legs are adjusted and then fixed to the base plate by welding, improving the versatility and applicability of the pre-embedded anchor structure, enabling it to adapt to building structures with different reinforcing bar distributions. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0022] Figure 1 This is a schematic diagram of an embodiment of the adjustable pre-embedded anchor structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the embedded base plate in the adjustable embedded anchor structure of this utility model.

[0024] In the diagram: 1. Embedded base plate; 2. Adjustment hole; 3. Embedded support leg; 31. Hook structure; 32. Flat end face. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Figure 1 This is a structural schematic diagram of this embodiment, as shown below. Figure 1 As shown, this embodiment provides an adjustable pre-embedded anchor structure, including a pre-embedded base plate 1, an adjustment hole 2, and a pre-embedded support leg 3.

[0027] Among them, the embedded base plate 1, as the basic positioning component of the entire structure, is used to position and fix with the surface of the building structure, and plays the role of precise positioning and fixing with the surface of the building structure.

[0028] Specifically, the embedded base plate 1 in this embodiment is made of metal sheet and has a flat mounting surface. It can be precisely positioned and fixed to the building structure, such as the template or foundation surface, by means of bolt connection or temporary support.

[0029] Optionally, the embedded base plate 1 in this embodiment is made of Q235 steel. Q235 steel has good mechanical properties and weldability, can form high-strength welded joints with building steel, and can adapt to slight deformation during construction. During use, rust removal, painting, and other anti-corrosion treatments can be performed on the steel surface to improve its service life.

[0030] It is understandable that the thickness and planar dimensions of the embedded base plate 1 can be determined according to the load-bearing requirements, and no specific limitations are made here.

[0031] Adjustment hole 2 is formed on the embedded base plate 1 and is used for the embedded support leg to pass through. It is a key structure for realizing the adjustment function. In this embodiment, adjustment hole 2 provides a passage for the embedded support leg to pass through, and at the same time allows the embedded support leg 3 to be adjusted in the horizontal direction.

[0032] Specifically, in this embodiment, the adjustment hole 2 is laser-cut at a preset position on the embedded base plate 1. The hole width is 1-2 mm larger than the diameter of the embedded support leg 3, and the hole depth is consistent with the thickness of the embedded base plate 1.

[0033] The embedded support leg 3 is a core component connecting the embedded base plate and the internal structure of the building, and is a metal component. In this embodiment, the embedded support leg 3 is movably inserted into the adjustment hole 2. One end of the embedded support leg 3 is used to extend into the interior of the building structure, and the other end can be welded and fixed to the embedded base plate 1.

[0034] This adjustable embedded anchor structure, through the setting of an embedded base plate 1, adjustment holes 2, and embedded legs 3, achieves adjustable horizontal position by setting an embedded base plate 1 for positioning and fixing with the building structure surface. The adjustment holes 2, located on the embedded base plate 1, allow the embedded legs 3 to pass through. The embedded legs 3, by moving through the adjustment holes 2, cooperate with the adjustment holes 2, thus solving the problem of interference with reinforcing bars caused by the fixed connection between the legs and the embedded plate in traditional embedded anchor structures. The structure is simple and practical, requiring no complex adjustment mechanism, reducing manufacturing costs and construction difficulty. During construction, the embedded legs 3 are adjusted in position and then fixed to the embedded base plate by welding, improving the versatility and applicability of the embedded anchor structure, enabling it to adapt to building structures with different reinforcing bar distributions.

[0035] As an optional implementation, both the pre-embedded support leg 3 and the adjustment hole 2 are configured to include at least one, and the pre-embedded support leg 3 and the adjustment hole 2 are configured in a one-to-one correspondence.

[0036] In actual production and use, the number of pre-embedded support legs 3 and adjustment holes 2 can be set according to the structural load-bearing requirements. Each adjustment hole 2 is equipped with only one pre-embedded support leg 3, so that each pre-embedded support leg 3 can be adjusted independently, avoiding mutual interference and improving the flexibility and accuracy of position adjustment.

[0037] Optionally, multiple adjustment holes are evenly distributed on the embedded base plate at preset intervals and in a predetermined arrangement. This allows the evenly distributed multi-embedded leg structure to effectively distribute the load and improve the overall bearing capacity of the embedded foot.

[0038] As an optional implementation method, Figure 2 This is a structural schematic diagram of the embedded base plate in this embodiment, as shown below. Figure 2As shown, the adjustment hole 2 in this embodiment has a cross-shaped structure.

[0039] The adjustment hole 2 is composed of two intersecting horizontal and vertical strip holes, forming a cross-shaped channel to ensure sufficient adjustment stroke. This cross-shaped structure provides adjustment capability in both horizontal and vertical directions, offering greater adjustment freedom than a single-direction adjustment hole. Furthermore, the symmetry of the cross-shaped structure ensures more even force distribution on the legs, reducing stress concentration in the structure after adjustment.

[0040] In this embodiment, the intersection of the "+" shaped structure is provided with a rounded corner structure. On the one hand, the rounded corner structure can eliminate the stress concentration points caused by the right angle and improve the structural strength of the embedded base plate at the adjustment hole. On the other hand, it facilitates the smooth turning and adjustment of the outriggers at the intersection, reduces operating resistance, and improves construction efficiency.

[0041] As an optional implementation, the gap between the width of the adjusting hole 2 and the diameter of the embedded support leg 3 is no greater than 2mm. This ensures that the embedded support leg 3 can move flexibly within the adjusting hole 2 without significant shaking.

[0042] As an optional implementation, the end of the pre-embedded support leg 3 that extends into the building structure is provided with a hook structure 31, which is used to enhance the connection strength between the pre-embedded support leg 3 and the building structure.

[0043] In this embodiment, the hook length is 5-10 times the diameter of the outrigger, and the hooks of multiple pre-embedded outriggers 3 are oriented in the same direction or symmetrically distributed to ensure the anchoring effect with the concrete.

[0044] By setting a hook structure 31 at one end of the pre-embedded support leg 3 that extends into the building structure, axial slippage of the support leg under stress is prevented, thus improving structural stability. The mechanical interlocking effect significantly enhances the connection strength between the support leg and the concrete, and significantly improves the pull-out resistance.

[0045] As an optional implementation, the end of the embedded support leg 3 furthest from the building structure is provided with a flat end face 32, which is used to fit and weld flush with the upper surface of the embedded base plate 1. This avoids welding stress concentration caused by uneven end faces and reduces welding deformation.

[0046] This embodiment also provides a construction method for the above-mentioned adjustable pre-embedded anchor structure, including the following steps:

[0047] S1: Position and fix the embedded base plate 1 on the surface of the building structure;

[0048] In this embodiment, a total station is used for positioning, and the embedded base plate 1 is fixed in the design position by temporary supports or expansion bolts to ensure that the plane of the base plate is consistent with the design benchmark.

[0049] During construction, a level is used to check the levelness of the embedded base plate, ensuring the error is controlled within 5mm, meaning the elevation difference between any two points on the base plate does not exceed 5mm. Strict levelness control ensures the accuracy of subsequent structural installation, meeting the requirements of high-precision engineering.

[0050] S2: One end of the pre-embedded support leg 3 is inserted through the adjustment hole 2 on the pre-embedded base plate 1 and extends into the building structure;

[0051] In this embodiment, the hook end of the pre-embedded support leg 3 is passed through the adjustment hole 2 so that the hook end is fully inserted into the concrete pouring area inside the building structure.

[0052] S3: Adjust the horizontal position of the embedded support leg 3 by adjusting the adjustment hole 2 so that the embedded support leg 3 is fully inserted into the building structure and the other end of the embedded support leg 3 is flush with the upper surface of the embedded base plate 1.

[0053] During construction, observe the relative position of the embedded support leg 3 and the reinforcing bar. By pushing the embedded support leg 3, it can be moved horizontally in the cross-shaped channel using the adjustment space of the adjustment hole 2 until it avoids all the reinforcing bars, while ensuring that the top of the embedded support leg 3 is flush with the upper surface of the embedded base plate 1.

[0054] S4: Weld and fix the pre-embedded support leg 3 to the pre-embedded base plate 1;

[0055] In this embodiment, a closed weld is formed by welding along the contact perimeter between the support leg and the base plate using manual arc welding or CO2 gas shielded welding.

[0056] S5: Repeat steps S2-S4 until all pre-embedded support legs 3 are installed.

[0057] During construction, install the remaining pre-embedded support legs 3 in sequence following the same process until all are completed. During installation, proceed in a clockwise or counter-clockwise order. This orderly installation sequence avoids collisions and disturbances to the installed support legs during operation, ensuring installation quality.

[0058] The construction method for this adjustable pre-embedded anchor structure involves first positioning and fixing the pre-embedded base plate to provide a reference for subsequent construction; then, inserting the pre-embedded legs 3 into the adjustment holes 2; next, adjusting the position of the pre-embedded legs 3 through the adjustment holes 2 to meet the installation requirements; then, welding and fixing the adjusted pre-embedded legs 3 to the pre-embedded base plate 1; finally, repeating the operation to complete the installation of all pre-embedded legs 3. The construction steps are simple and clear, easy for construction personnel to understand and operate, and reduce the difficulty of construction.

[0059] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An adjustable pre-embedded anchor structure, characterized in that, include: An embedded base plate, which is used for positioning and fixing to the surface of the building structure; An adjustment hole is provided on the embedded base plate for the embedded support leg to pass through and for adjusting the horizontal position of the embedded support leg. The pre-embedded support leg is movably inserted into the adjustment hole. One end of the pre-embedded support leg is used to extend into the building structure, and the other end can be welded and fixed to the pre-embedded base plate.

2. The adjustable pre-embedded anchor structure according to claim 1, characterized in that: The pre-embedded support leg and the adjustment hole are both configured to include at least one, and the pre-embedded support leg and the adjustment hole are configured in a one-to-one correspondence.

3. The adjustable pre-embedded anchor structure according to claim 2, characterized in that: The adjustment hole has a cross-shaped structure.

4. The adjustable pre-embedded anchor structure according to claim 3, characterized in that: The intersection of the "+" shaped structure is provided with rounded corners.

5. The adjustable pre-embedded anchor structure according to claim 4, characterized in that: The gap between the width of the adjustment hole and the diameter of the pre-embedded support leg is no greater than 2mm.

6. An adjustable pre-embedded anchor structure according to any one of claims 1-5, characterized in that: The pre-embedded support leg has a hook structure at one end that extends into the building structure. The hook structure is used to enhance the connection strength between the pre-embedded support leg and the building structure.

7. The adjustable pre-embedded anchor structure according to claim 6, characterized in that: The end of the pre-embedded support leg away from the interior of the building structure has a flat end face, which is used to be flush with and welded to the upper surface of the pre-embedded base plate.

8. An adjustable pre-embedded anchor structure according to any one of claims 1-5, characterized in that: The embedded base plate is made of Q235 steel.

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