A steel lattice column fixing device

Abstract

This utility model discloses a steel lattice column fixing device, comprising a reinforcing cage and a lattice column installed within a bored pile. The lattice column is installed vertically along the depth direction of the bored pile, with a gap between the bored pile and the reinforcing cage, and a gap between the reinforcing cage and the lattice column. A positioning mechanism is provided at the upper outer end of the lattice column. The positioning mechanism has an outer contour dimension larger than the inner contour dimension of the top of the reinforcing cage, so that when the lattice column is lowered into the reinforcing cage, the positioning mechanism can overlap and suspend from the top of the reinforcing cage, thereby vertically positioning the lattice column along the depth direction of the bored pile. This device achieves automatic centering and fixing of the lattice column, enabling rapid installation without complex measurement and calibration, simplifying the construction process, shortening the construction period, and reducing labor costs; it also ensures the final project quality and the safety of the construction process.

Description

Technical Field

[0001] This utility model relates to the field of lattice column positioning technology, and more specifically, to a steel lattice column fixing device. Background Technology

[0002] Lattice columns are used as compression-bending members. Their cross-sections are generally made of steel sections or steel plates and designed as biaxially or uniaxially symmetrical sections. In reverse construction or foundation pit projects using concrete internal bracing, pile-based steel lattice columns are often used as temporary structural support members. The steel lattice columns are welded from angle steel and steel plates. The lower end is generally embedded in the center of the bored pile, and the upper end is used to connect with the supporting beams in the foundation pit or the basement beams and slabs.

[0003] In existing technologies, due to the long length and heavy weight of steel lattice columns, they are easily deflected during the concrete pouring process, which leads to a decrease in the stability of the lattice columns. Furthermore, the lack of positioning on the outer side of the lattice columns causes them to tilt, affecting the quality of subsequent construction. Utility Model Content

[0004] To solve at least one of the above-mentioned technical problems, this utility model proposes a steel lattice column fixing device.

[0005] The first aspect of this utility model provides a steel lattice column fixing device, including a steel cage and a lattice column disposed in a bored pile; The steel cage contains the lattice column, which is vertically arranged along the depth direction of the bored pile. There is a gap between the bored pile and the steel cage, and also a gap between the steel cage and the lattice column. The upper outer side of the lattice column is provided with a positioning mechanism; The positioning mechanism has an outer contour dimension that is larger than the inner contour dimension of the top of the reinforcing cage, so that when the lattice column is lowered into the reinforcing cage, the positioning mechanism can overlap and suspend at the top of the reinforcing cage, thereby vertically positioning the lattice column along the depth direction of the bored pile.

[0006] In a preferred embodiment of this utility model, the steel cage includes multiple steel bars, which are fixed together by welding or by binding with wire.

[0007] In a preferred embodiment of this utility model, the cross-section of the lattice column is rectangular, and the lattice column includes four steel sections distributed at the four corners of the lattice column. Adjacent steel sections are fixedly connected by gusset plates.

[0008] In a preferred embodiment of this utility model, the cross-section of the steel section is an L-shaped structure.

[0009] In a preferred embodiment of the present invention, the positioning mechanism includes a positioning ring, and a plurality of first positioning elements and a plurality of second positioning elements disposed inside the positioning ring.

[0010] In a preferred embodiment of this utility model, one end of the first positioning member is fixedly connected to the positioning ring, and the other end is fixedly connected to the lattice column.

[0011] In a preferred embodiment of this utility model, the first positioning member is arranged horizontally and the second positioning member is arranged vertically; the first positioning member and the second positioning member together form a triangular fixing structure.

[0012] In a preferred embodiment of this utility model, both the positioning ring and the cross-section of the bored pile are approximately circular.

[0013] In a preferred embodiment of this utility model, the distance between the positioning ring and the outer wall of the bored pile is 2~5cm.

[0014] In a preferred embodiment of this utility model, the cross-sectional diameter of the bored pile is 800-1200mm, the cross-sectional size of the reinforcing cage is 700-1100mm, and the cross-sectional diameter of the lattice column is 400-750mm.

[0015] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: This invention achieves automatic centering and fixing of the lattice column by using the top of the reinforcing cage as a reference plane through a positioning mechanism, fundamentally solving the common problems of misalignment and tilting in traditional processes. It enables rapid installation by simply lowering the column into place, eliminating the need for complex measurements and calibrations, simplifying the construction process, shortening the construction period, and reducing labor costs. The stable combined structure formed by the positioning mechanism and the reinforcing cage effectively resists the impact and disturbance during concrete pouring, preventing displacement of the lattice column during critical forming stages, thereby ensuring the final project quality and the safety of the construction process. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, some of the drawings in the following description are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a front view of the steel lattice column fixing device according to an embodiment of this utility model; Figure 2 This is a front view of a lattice column according to an embodiment of this utility model; Figure 3 This is a top view of the steel lattice column fixing device according to an embodiment of this utility model; Figure 4 This is a top view of a lattice column according to an embodiment of this utility model.

[0018] In the diagram, 1 is a lattice column; 2 is a positioning mechanism; 3 is a reinforcing cage; 4 is a steel section; 5 is a connecting plate; 6 is a bored pile; 7 is a positioning ring; 8 is the first positioning component; and 9 is the second positioning component. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0021] Example 1 See Figures 1-4 As shown, this utility model proposes a steel lattice column fixing device, including a bored pile 6, a reinforcing cage 3 and a lattice column 1 disposed within the bored pile 6; the lattice column 1 is disposed within the reinforcing cage 3, and the lattice column 1 is vertically disposed along the depth direction of the bored pile 6. A gap is provided between the bored pile 6 and the reinforcing cage 3, and a gap is also provided between the reinforcing cage 3 and the lattice column 1; a positioning mechanism 2 is provided at the upper outer side of the lattice column 1; the positioning mechanism 2 has an outer contour dimension, which is larger than the inner contour dimension of the top of the reinforcing cage 3, so that when the lattice column 1 is lowered into the reinforcing cage 3, the positioning mechanism 2 can overlap and suspend at the top of the reinforcing cage 3, thereby vertically positioning the lattice column 1 along the depth direction of the bored pile 6.

[0022] The structure of this device is a three-layer concentric spatial layout. The outermost layer consists of drilled piles 6 serving as the base, which house a reinforcing cage 3 forming the framework. The core load-bearing component, the lattice column 1, is housed at the center of the reinforcing cage 3. A positioning mechanism 2 is securely mounted on the upper outer side of the lattice column 1 via welding or other methods. During the lowering and installation process, the bottom of the positioning mechanism 2 makes surface contact with the top ring of the reinforcing cage 3, forming a stable overlapping support structure. It is understood that because the outer diameter of the positioning mechanism 2 is designed to be larger than the inner diameter of the reinforcing cage 3, when the lattice column 1 is hoisted and lowered, the cage body of the reinforcing cage 3 acts as a guide, while its top ring becomes a locking mechanism. The positioning mechanism 2 naturally overlaps and suspends itself at this locking mechanism, utilizing the self-weight of the lattice column 1 to achieve rapid and accurate centering and vertical suspension, eliminating the need for complex secondary manual calibration. In addition, the gaps reserved between the bored pile 6 and the reinforcing cage 3, and between the reinforcing cage 3 and the lattice column 1, ensure that the concrete can fully fill all the spaces when it is poured later, forming the required thickness of the reinforcing steel protective layer, thus ensuring the durability and safety of the structure.

[0023] According to an embodiment of this utility model, the reinforcing cage 3 includes multiple reinforcing bars, which are fixed together by welding or wire binding. Specifically, the reinforcing cage 3 is composed of multiple main reinforcing bars and stirrups. The main reinforcing bars are arranged parallel to each other along their length, and the stirrups surround the main reinforcing bars. The connection points between them adopt mature fixing techniques used in engineering, namely spot welding by electric welding or tight binding with annealed wire. The above connection methods ensure that the reinforcing cage 3 forms an integral cylindrical structure with sufficient rigidity and stability. This ensures that the ring at the top of the reinforcing cage will not deform or collapse when bearing the huge weight of the lattice column 1 and the positioning mechanism 2, providing a solid and reliable support base for the suspension and positioning function.

[0024] According to an embodiment of this utility model, the cross-section of the lattice column 1 is rectangular. The lattice column 1 includes four steel sections 4, which are distributed at the four corners of the lattice column 1. Adjacent steel sections 4 are fixedly connected by connecting plates 5. Specifically, the frame of the lattice column 1 is composed of four steel sections 4 as the main load-bearing components, located at the four vertices of the rectangular cross-section. The connecting plates 5 serve as connectors, and adjacent steel sections 4 are firmly connected horizontally by welding.

[0025] The above-described structure forms a spatial truss structure. The gusset plate 5 not only combines the four independent steel sections 4 into a whole, but more importantly, it resists shear forces and increases the overall stability of the structure, effectively preventing buckling and instability of a single steel section 4 under axial pressure. This ensures the strength and reliability of the lattice column 1 as a whole load-bearing component.

[0026] According to an embodiment of this utility model, the section of the steel section 4 is an L-shaped structure. Using L-shaped angle steel as the main corner members of the lattice column 1, the L-shaped section has good bending and compressive strength, and its two vertical flanges provide a convenient and straight welding surface for the connecting parts of the lacing plate 5 and the positioning mechanism 2, simplifying the manufacturing process and ensuring the connection quality. According to an embodiment of the present invention, the positioning mechanism 2 includes a positioning ring 7, and a plurality of first positioning elements 8 and a plurality of second positioning elements 9 disposed inside the positioning ring 7.

[0027] Specifically, one end of the first positioning component 8 is fixedly connected to the positioning ring 7, and the other end is fixedly connected to the lattice column 1. The first positioning component 8 is horizontally positioned, and the second positioning component 9 is vertically positioned. The first positioning component 8 and the second positioning component 9 together form a triangular fixing structure. The cross-sections of the positioning ring 7 and the bored pile 6 are both approximately circular, and the distance between the positioning ring 7 and the outer wall of the bored pile 6 is 2-5 cm. More specifically, the positioning mechanism 2 is a composite support structure. The outermost positioning ring 7 is the component that ultimately contacts the reinforcing cage 3. The first positioning component 8 is arranged radially horizontally, with its outer end welded to the inner wall of the positioning ring 7 and its inner end welded to the corner steel 4 of the lattice column 1. The second positioning component 9 serves as a reinforcing rib, with one end welded to the first positioning component 8 and the other end welded downwards to the steel 4 of the lattice column 1, forming a stable triangular fixing structure together with the first positioning component 8 and the side wall of the lattice column 1.

[0028] By adding a second positioning component 9 to form a triangle, the bending resistance of the first positioning component 8 is enhanced, ensuring that the entire positioning mechanism 2 will not undergo harmful deformation when suspending the heavy lattice column 1, thus guaranteeing the accuracy and safety of positioning. Secondly, a 2-5cm gap is reserved between the positioning ring 7 and the inner wall of the bored pile 6, ensuring that even if there is a certain verticality deviation in the pile hole or unevenness in the hole wall during the lowering process, the positioning mechanism 2 will not be stuck, ensuring a smooth installation process.

[0029] According to the embodiments of this utility model, the cross-sectional diameter of the bored pile 6 is 800-1200mm, the cross-sectional size of the reinforcing cage 3 is 700-1100mm, and the cross-sectional diameter of the lattice column 1 is 400-750mm.

[0030] Optionally, the cross-sectional diameter of the bored pile 7 is 800mm, 850mm, 900mm, 1000mm, 1100mm, or 1200mm, and the cross-sectional dimensions of the reinforcing cage 3 are 700mm, 750mm, 800mm, 900mm, 1000mm, and 1100mm. Furthermore, the dimensions provided in this application are only partial dimensions; any dimensions within the scope defined in this application are within the technical scope disclosed in this application.

[0031] Optionally, the cross-sectional diameter of the lattice column 1 can be 460mm, 500mm, 550mm or 600mm, 650mm, 700mm or 750mm.

[0032] The specific working process is as follows: First, an independent reinforcing cage 3 is placed inside the bored pile 6. Then, the lattice column 1, equipped with a positioning mechanism 2 at its upper end, is hoisted and lowered into the reinforcing cage 3. During the lowering process, because the outer contour dimension of the positioning mechanism 2 is designed to be larger than the inner contour dimension of the top of the reinforcing cage 3, when the lattice column 1 sinks to the predetermined depth, the positioning mechanism 2 will automatically overlap and be stably suspended on the top ring of the reinforcing cage 3. Through physical limiting, the automatic centering and precise vertical elevation fixation of the lattice column 1 are achieved without complex manual calibration. After positioning is completed, concrete pouring can be carried out. The positioning mechanism 2 ensures that the lattice column 1 remains stable throughout the pouring process, thereby efficiently and reliably completing high-quality pile foundation construction.

[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to the above embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0035] 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. A steel lattice column fixing device, comprising a reinforcing cage and a lattice column disposed within a bored pile; characterized in that, The steel cage contains the lattice column, which is vertically arranged along the depth direction of the bored pile. There is a gap between the bored pile and the steel cage, and also a gap between the steel cage and the lattice column. The upper outer side of the lattice column is provided with a positioning mechanism; the positioning mechanism has an outer contour dimension that is larger than the inner contour dimension of the top of the reinforcing cage, so that when the lattice column is lowered into the reinforcing cage, the positioning mechanism can overlap and suspend at the top of the reinforcing cage, thereby vertically positioning the lattice column along the depth direction of the bored pile.

2. The steel lattice column fixing device according to claim 1, characterized in that, The steel cage includes multiple steel bars, which are fixed together by welding or wire binding.

3. The steel lattice column fixing device according to claim 1, characterized in that, The cross-section of the lattice column is rectangular. The lattice column includes four steel sections, which are distributed at the four corners of the lattice column. Adjacent steel sections are fixedly connected by gusset plates.

4. A steel lattice column fixing device according to claim 3, characterized in that, The steel section has an L-shaped structure.

5. A steel lattice column fixing device according to claim 1, characterized in that, The positioning mechanism includes a positioning ring, and a plurality of first positioning elements and a plurality of second positioning elements disposed inside the positioning ring.

6. A steel lattice column fixing device according to claim 5, characterized in that, One end of the first positioning member is fixedly connected to the positioning ring, and the other end is fixedly connected to the lattice column.

7. A steel lattice column fixing device according to claim 6, characterized in that, The first positioning element is horizontally positioned, and the second positioning element is vertically positioned; the first positioning element and the second positioning element together form a triangular fixing structure.

8. A steel lattice column fixing device according to claim 5, characterized in that, Both the positioning ring and the bored pile have roughly circular cross-sections.

9. A steel lattice column fixing device according to claim 8, characterized in that, The distance between the positioning ring and the bored pile is 2-5 cm.

10. A steel lattice column fixing device according to claim 1, characterized in that, The diameter of the bored pile is 800-1200mm, the diameter of the steel cage is 700-1100mm, and the diameter of the lattice column is 400-750mm.

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