Cast-in-situ bored pile reinforcement cage positioning device

Abstract

According to the positioning device for the cast-in-situ bored pile reinforcement cage, the two positioning plates are connected through the connecting rib to form the positioning column, rapid positioning and splicing of reinforcing steel bars can be achieved through the arc-shaped limiting grooves, the telescopic supporting rods are combined with the arc-shaped limiting plate structure, the positioning plates with different diameters can be formed through adjustment, and the positioning effect is good. The two positioning plates are adopted to form a cylinder structure, the supporting rod design is adopted, the telescopic length of the supporting rod is controlled, the straightness of center positioning can be guaranteed, the position precision of the arc-shaped limiting grooves in the outer sides of the limiting plates is guaranteed, and use is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a positioning device for the reinforcing cage of a bored pile. Background Technology

[0002] In pile foundation construction, the installation of the reinforcing cage is a crucial step. Excessive misalignment of the reinforcing cage's center point can lead to eccentric compression of the pile, reducing its load-bearing capacity and posing a significant quality hazard. Furthermore, inaccurate elevation control of the reinforcing cage necessitates subsequent cutting and splicing to ensure adequate anchorage length, impacting project progress and costs.

[0003] In general, the traditional method for plane positioning of reinforcing cages is to symmetrically set ear rings or spacers around the reinforcing hoop of the reinforcing cage. If the empty pile of the cast-in-place pile is long, it is also necessary to extend the reinforcing cage to the top elevation of the steel casing based on the original design length of the reinforcing cage for plane positioning. This method has the disadvantages of large amount of reinforcing steel used, non-reusability, and inconvenience in positioning, which is not conducive to the cost control of the project.

[0004] To address the aforementioned issues, Chinese patent CN221321483U provides a splicing rebar cage positioning clamp comprising at least two splicing parts; the at least two splicing parts are detachably connected to each other, and the at least two splicing parts are connected to form a ring. While this structure can ensure the shape accuracy of the rebar cage to a certain extent, it is difficult to guarantee uniformity of the vertical center position for rebar cages of different diameters, and the center position is prone to shift in the axial direction, affecting the splicing effect of the rebar cage.

[0005] Therefore, it is necessary to propose a positioning device for the reinforcing cage of bored piles to quickly and accurately position the reinforcing cage, improve the installation quality of the reinforcing cage, and effectively save project costs. Utility Model Content

[0006] This utility model provides a positioning device for the reinforcing cage of bored piles to solve the problem that the positioning accuracy of existing reinforcing cage positioning clamps is poor, which easily leads to the deviation of the central axis position, resulting in poor straightness of the pile foundation and affecting the construction effect.

[0007] According to one aspect of the present invention, a positioning device for a drilled pile reinforcement cage is provided, comprising connecting bars and positioning plates. The positioning plates are spaced apart and connected by the connecting bars. Each positioning plate includes a plurality of arc-shaped limiting plates, a central connecting head, and a telescopic support rod. One end of the support rod is connected to the limiting plate, and the other end of the support rod is connected to the central connecting head. The inner edge of the limiting plate extends upward to form a connecting edge. One end of the connecting edge is provided with a insertion groove, and the other end of the connecting edge is provided with an arc-shaped insertion plate. The insertion plate is adapted to the insertion groove, and an arc-shaped limiting groove is provided on the outer circular surface of the limiting plate.

[0008] Based on the above scheme, a preferred embodiment is provided on the support rod, which is equipped with a scale.

[0009] Based on the above scheme, the upper limit plate is provided with a plug hole.

[0010] Based on the above scheme, preferably, there are at least 4 support rods, and the number of support rods is even.

[0011] Preferably, based on the above scheme, the central connector is provided with a mounting hole that is compatible with the support rod.

[0012] Based on the above scheme, a preferred embodiment is that the center connector has a through hole at its center.

[0013] Based on the above scheme, a preferred embodiment is provided on the connecting edge of the positioning plate, which is equipped with a lifting lug.

[0014] This utility model discloses a positioning device for the reinforcing cage of a bored pile. It employs two positioning plates connected by connecting bars to form a positioning column. Through an arc-shaped limiting groove, rapid positioning and splicing of the reinforcing bars can be achieved. The device utilizes a telescopic support rod combined with the arc-shaped limiting plate structure, allowing for the adjustment of positioning plates of different diameters to meet the welding requirements of steel piles with varying diameters. It has a wide range of applications. Because this utility model uses two positioning plates to form a column structure and employs a support rod design, controlling the extension and retraction length of the support rod ensures the straightness of its center positioning and guarantees the positional accuracy of the arc-shaped limiting groove on the outer side of the limiting plate. It is convenient and quick to use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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. In the drawings:

[0016] Figure 1This is a schematic diagram of the positioning device for the reinforcing cage of the bored pile according to this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning plate of this utility model;

[0018] Figure 3 This is a perspective view of the limiting plate of this utility model;

[0019] Explanation of icon numbers:

[0020] 1. Connecting rib; 2. Limiting plate; 21. Connecting edge; 22. Insertion groove; 23. Insertion plate; 24. Arc-shaped limiting groove; 25. Insertion hole; 26. Mounting hole; 27. Center connector; 28. Support rod; 29. ​​Lifting lug;

[0021] 3. Positioning plate. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0023] It should be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of a descriptive feature, integral, step, operation, element, and / or component, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or sets.

[0024] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0025] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0026] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this invention are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0029] Please see Figure 1 and combined Figure 2 and Figure 3 As shown, the present invention provides a positioning device for a drilled pile reinforcement cage, comprising a connecting bar 1 and a positioning plate 3, wherein the positioning plates 3 are spaced apart and connected by the connecting bar 1. The present invention provides two positioning plates 3, which form a column structure through the connecting bar 1.

[0030] Specifically, the positioning plate 3 includes multiple arc-shaped limiting plates 2, a central connector 27, and a telescopic support rod 28. One end of the support rod 28 is connected to the limiting plate 2, and the other end of the support rod 28 is connected to the central connector 27. The inner edge of the limiting plate 2 extends upward to form a connecting edge 21. One end of the connecting edge 21 is provided with a plug groove 22, and the other end of the connecting edge 21 is provided with an arc-shaped plug plate 23. The plug plate 23 is adapted to the plug groove 22. An arc-shaped limiting groove 24 is provided on the outer circular surface of the limiting plate 2.

[0031] In use, the length of the support rod 28 is adjusted according to the diameter of the rebar cage, which drives the limiting plate 2 to move relative to each other, causing the position of the insertion plate 23 in the insertion groove 22 to change the inner diameter length of the positioning plate 3. It is then fitted onto the rebar cage splicing position. The arc-shaped limiting groove 24 is used to control the relative position of the inserted rebar and the rebar cage, enabling rapid positioning, insertion, and binding, ensuring efficient, high-quality, and smooth rebar cage installation.

[0032] Preferably, the support rod 28 of this utility model is provided with a scale to facilitate its length adjustment. Furthermore, this utility model also provides an insertion hole 25 on the upper part of the limiting plate 2 to facilitate the insertion of the variable diameter steel cage.

[0033] To ensure the accuracy of the adjustment of the limiting plate 2, the present invention has at least 4 support rods 28, and the number of support rods 28 is even.

[0034] Furthermore, the present invention also provides a mounting hole 26 on the central connector 27 that is adapted to the support rod 28, and a through hole is provided in the center of the central connector 27.

[0035] To facilitate hoisting, this utility model also provides hoisting lugs on the connecting edge 21 of the positioning plate 3.

[0036] This utility model discloses a positioning device for the reinforcing cage of a bored pile. It employs two positioning plates 3 connected by connecting bars 1 to form a positioning column. The arc-shaped limiting groove 24 enables rapid positioning and splicing of the reinforcing bars. A telescopic support rod 28, combined with the arc-shaped limiting plate 2 structure, allows for the adjustment of positioning plates 3 to different diameters, meeting the welding requirements of steel piles with varying diameters. This device has a wide range of applications. Because it uses two positioning plates 3 to form a column structure and employs a support rod 28, controlling the extension and retraction length of the support rod 28 ensures the straightness of its center positioning and guarantees the positional accuracy of the arc-shaped limiting groove 24 on the outer side of the limiting plate 2. It is convenient and quick to use.

[0037] Finally, the method described in this application is merely a preferred embodiment and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A positioning device for the reinforcing cage of a bored pile, characterized in that, The device includes connecting ribs and positioning plates. The positioning plates are spaced apart and connected by the connecting ribs. Each positioning plate includes multiple arc-shaped limiting plates, a central connecting head, and telescopic support rods. One end of each support rod is connected to a limiting plate, and the other end is connected to the central connecting head. The inner edge of the limiting plate extends upward to form a connecting edge. One end of the connecting edge is provided with a insertion groove, and the other end of the connecting edge is provided with an arc-shaped insertion plate that is adapted to the insertion groove. An arc-shaped limiting groove is provided on the outer circular surface of the limiting plate.

2. The positioning device for the reinforcing cage of a bored pile as described in claim 1, characterized in that, A scale is installed on the support rod.

3. The positioning device for the reinforcing cage of a bored pile as described in claim 1, characterized in that, The upper limit plate is provided with a plug hole.

4. The positioning device for the reinforcing cage of a bored pile as described in claim 1, characterized in that, The number of support rods is at least 4, and the number of support rods is even.

5. A positioning device for a reinforcing cage of a bored pile as described in claim 4, characterized in that, The central connector is provided with mounting holes that are compatible with the support rod.

6. The positioning device for the reinforcing cage of a bored pile as described in claim 5, characterized in that, The center connector has a through hole at its center.

7. The positioning device for the reinforcing cage of a bored pile as described in claim 1, characterized in that, The positioning plate is provided with a lifting lug on its connecting edge.

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