A positioning tool for lowering a cast-in-place pile reinforcement cage

Abstract

The utility model discloses a positioning tool for lowering bored filling pile reinforcement cage, including first half circle module and second half circle module, the left and right sides of first half circle module are provided with the plug block of one end of second half circle module, the corresponding position of second half circle module is equipped with the matching slot, the middle part of plug block upper end outer surface and the top part of slot are equipped with the coaxial second embedded column and first embedded column respectively, and are equipped with internal thread in two embedded columns, be provided with the internal hexagon countersunk head bolt between first half circle module and second half circle module, internal hexagon countersunk head bolt is connected in first embedded column and second embedded column between the thread, and the outer wall of plug block and the slot between are inserted. A positioning tool for lowering bored filling pile reinforcement cage, modularization detachable design, convenient for transporting the reinforcement cage to the site again and then installing, convenient for assembling and disassembling.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, specifically a positioning tool for lowering the reinforcing cage of a bored pile. Background Technology

[0002] In the field of construction engineering, bored piles are a common foundation construction technique, and the positioning accuracy of the reinforcing cage directly affects the bearing capacity and durability of the pile. Traditionally, reinforcing cage positioning often uses concrete integrally cast spacers, which are fixed to the reinforcing bars during the welding of the reinforcing cage to ensure that the design protective layer thickness is maintained between the reinforcing cage and the borehole wall, thus serving a positioning function.

[0003] However, this traditional pad has the following significant drawbacks:

[0004] 1. Easily damaged during transportation: When the spacer blocks are transported together with the steel cage, they are easily broken due to vibration or collision, rendering them unusable and affecting construction efficiency;

[0005] 2. Non-replaceability: If the spacer is damaged, the entire steel cage needs to be replaced or re-welded, which increases material waste and construction costs;

[0006] 3. Poor installation flexibility: The spacers must be installed during the welding stage of the reinforcing cage, and cannot be flexibly adjusted according to site conditions, which limits the adaptability of construction.

[0007] 4. Insufficient stability: The steel bar limiting groove of traditional pad blocks lacks anti-slip design, and the steel bar is prone to displacement after being fixed, affecting the positioning accuracy.

[0008] Therefore, we propose a positioning tool for lowering the reinforcing cage of bored piles. Utility Model Content

[0009] (a) Technical problems to be solved

[0010] To address the shortcomings of existing technologies, this utility model provides a positioning tool for lowering the reinforcing cage of a bored pile. Its modular and detachable design facilitates the transportation of the reinforcing cage to the site for installation, and its ease of assembly and disassembly effectively solves the problems in the background technology.

[0011] (II) Technical Solution

[0012] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a positioning tool for lowering the reinforcing cage of a bored pile, comprising a first semicircular module and a second semicircular module. Insert blocks are provided on the left and right sides of the first semicircular module near the end of the second semicircular module. Matching slots are provided at corresponding positions on the second semicircular module. A second embedded column and a first embedded column are respectively provided on the middle of the upper outer surface of the insert block and the top of the slot. Both embedded columns are provided with internal threads. A countersunk hexagonal head bolt is provided between the first semicircular module and the second semicircular module. The countersunk hexagonal head bolt is threaded between the first embedded column and the second embedded column. The outer wall of the insert block is inserted into the slot. A reinforcing bar limiting groove is provided in the middle of the outer surface of one side of both the first semicircular module and the second semicircular module.

[0013] Preferably, the first and second embedded columns are hollow cylinders made of stainless steel.

[0014] Preferably, both the outer walls of the first embedded column and the slot are provided with anti-rotation raised textures.

[0015] Preferably, the first and second semicircular modules have equidistantly distributed anti-slip protrusions in their steel bar limiting grooves.

[0016] Preferably, the first semicircular module and the second semicircular module are integrally cast from concrete.

[0017] Preferably, the axes of the first and second embedded columns are perpendicular to the bottom surfaces of the first and second semicircular modules.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a positioning tool for lowering the reinforcing cage of a bored pile, which has the following advantages:

[0020] 1. This positioning tool for lowering the reinforcing cage of a bored pile features a modular and detachable design. It achieves rapid assembly and disassembly through the plug-in structure of the first and second semicircular modules and bolt connection, facilitating installation after the reinforcing cage is transported to the site. This effectively reduces the risk of damage during transportation, and the damaged module can be replaced individually, reducing construction costs.

[0021] 2. A positioning tool for lowering the reinforcing cage of a bored pile enhances positioning stability: the reinforcing bar limiting groove is provided with equidistantly distributed anti-slip protrusions, which improves the positioning accuracy during the lowering process of the reinforcing cage. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a positioning tool for lowering the reinforcing cage of a bored pile according to the present invention.

[0023] Figure 2 This is a schematic diagram of the second semicircular module in a positioning tool for lowering the reinforcing cage of a bored pile according to the present invention.

[0024] Figure 3 This is a schematic diagram of the first semicircular module in a positioning tool for lowering the reinforcing cage of a bored pile according to the present invention.

[0025] Figure 4 This is a schematic diagram of the structure of a steel cage pad in the prior art.

[0026] In the diagram: 1. First semicircular module; 2. Second semicircular module; 3. Rebar limiting groove; 4. Hexagonal countersunk head bolt; 5. First embedded column; 6. Slot; 7. Insert block; 8. Second embedded column. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] This embodiment describes a positioning tool for lowering the reinforcing cage of a bored pile.

[0029] like Figure 1-4 As shown, it includes a first semicircular module 1 and a second semicircular module 2. Insert blocks 7 are provided on the left and right sides of the first semicircular module 1 near the end of the second semicircular module 2. Matching slots 6 are provided at corresponding positions of the second semicircular module 2. The middle of the upper outer surface of the insert block 7 and the top of the slot 6 are respectively provided with a second embedded post 8 and a first embedded post 5 on the same axis. Both embedded posts are provided with internal threads. A hexagonal countersunk bolt 4 is provided between the first semicircular module 1 and the second semicircular module 2. The hexagonal countersunk bolt 4 is threaded between the first embedded post 5 and the second embedded post 8. The outer wall of the insert block 7 is inserted into the slot 6. A steel bar limiting groove 3 is opened in the middle of the outer surface of one side of both the first semicircular module 1 and the second semicircular module 2.

[0030] The first embedded column 5 and the second embedded column 8 are hollow cylinders made of stainless steel; the outer walls of the first embedded column 5 and the slot 6 are provided with anti-rotation raised textures; the steel bar limiting grooves 3 of the first semicircular module 1 and the second semicircular module 2 are provided with equidistantly distributed anti-slip raised points; the first semicircular module 1 and the second semicircular module 2 are integrally cast with concrete; the axes of the first embedded column 5 and the second embedded column 8 are perpendicular to the bottom surfaces of the first semicircular module 1 and the second semicircular module 2.

[0031] It should be noted that this utility model is a positioning tool for lowering the reinforcing cage of a bored pile. It features a modular and detachable design. After the reinforcing cage is transported to the site, the reinforcing cage spacer is installed on the reinforcing cage to reduce the breakage rate and allow for replacement after damage. After the reinforcing cage is transported to the site, the first semicircular module 1 and the second semicircular module 2 are assembled. The position of the reinforcing bar limiting groove 3 in the first semicircular module 1 and the second semicircular module 2 is locked onto the outer wall of the reinforcing bar in the reinforcing cage. Then, the insert 7 is inserted into the slot 6, and the internal hexagon countersunk bolt 4 is connected between the first embedded column 5 and the second embedded column 8 to realize the assembly of the first semicircular module 1 and the second semicircular module 2, which is also easy to disassemble. The reinforcing bar limiting groove 3 of the first semicircular module 1 and the second semicircular module 2 is provided with equidistantly distributed anti-slip protrusions to increase stability after the reinforcing bar passes through the reinforcing bar limiting groove 3. When the crane lowers the reinforcing cage into the pile casing, the first semicircular module 1 and the second semicircular module 2 are used for positioning to ensure the thickness of the protective layer after the concrete pile is poured.

[0032] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A positioning tool for lowering a reinforcing cage for a bored pile, comprising a first semicircular module (1) and a second semicircular module (2), characterized in that: The first semicircular module (1) has inserts (7) on the left and right sides near the end of the second semicircular module (2). The second semicircular module (2) has matching slots (6) at the corresponding positions. The middle of the upper outer surface of the insert (7) and the top of the slot (6) are respectively provided with a second embedded column (8) and a first embedded column (5) on the same axis. Both embedded columns are provided with internal threads. The first semicircular module (1) and the second semicircular module (2) are provided with internal hexagon countersunk bolts (4). The internal hexagon countersunk bolts (4) are threaded between the first embedded column (5) and the second embedded column (8). The outer wall of the insert (7) and the slot (6) are inserted into each other. The middle of the outer surface of one side of the first semicircular module (1) and the second semicircular module (2) are provided with steel bar limiting grooves (3).

2. The positioning tool for lowering the reinforcing cage of a bored pile according to claim 1, characterized in that: The first embedded column (5) and the second embedded column (8) are hollow cylinders made of stainless steel.

3. A positioning tool for lowering the reinforcing cage of a bored pile according to claim 2, characterized in that: The outer walls of the first embedded column (5) and the slot (6) are both provided with anti-rotation ridges.

4. A positioning tool for lowering the reinforcing cage of a bored pile according to claim 3, characterized in that: The first semicircular module (1) and the second semicircular module (2) are provided with equidistantly distributed anti-slip protrusions in the steel bar limiting groove (3).

5. A positioning tool for lowering a reinforced concrete cage for a bored pile according to claim 4, characterized in that: The first semicircular module (1) and the second semicircular module (2) are integrally cast with concrete.

6. A positioning tool for lowering a bored pile reinforcement cage according to claim 5, characterized in that: The axes of the first embedded column (5) and the second embedded column (8) are perpendicular to the bottom surfaces of the first semicircular module (1) and the second semicircular module (2).

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