Anchor pile steel bar centering device
The positioning plate and anti-sway structure of the anchor pile reinforcement centering device solve the problem of the reinforcement cage tilting or hitting the wall during concrete pouring, achieves rapid centering and stable positioning of the reinforcement cage, and improves the bearing capacity and durability of the pile foundation.
Patent Information
- Application Number
- CN202422872291.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-22
AI Technical Summary
In the prior art, the steel cage is prone to tilt or hit the side wall during the concrete pouring process, affecting the bearing capacity and durability of the pile foundation.
An anchor pile reinforcement centering device is used, including a positioning plate, a limit plate and an anti-sway structure. The positioning plate is inserted into the pile hole, and the movable plate and the abutment block are used to abut the inner wall of the pile hole to ensure that the reinforcement cage is centered and stable.
The steel cage can be quickly centered in the pile hole, which reduces the deflection and collision during concrete pouring and improves the bearing capacity and durability of the pile foundation.
Smart Images
Figure CN223410160U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anchor pile reinforcement centering, in particular to an anchor pile reinforcement centering device. Background Art
[0002] Anchor piles are a type of foundation support structure formed by connecting reinforced concrete piles with anchor rods. They are widely used in geotechnical engineering, tunnels, basements and other fields. When manufacturing reinforced concrete piles, a steel bar hole consisting of multiple steel bars needs to be inserted into the pile hole and then filled with steel bars to make reinforced concrete piles.
[0003] Since the diameter of the steel cage is usually smaller than the diameter of the pile hole, the steel cage needs to be placed in the center of the pile hole. The traditional method of centering the steel cage is to draw a cross line on the steel cage to find the center of the steel cage, find the center of the pile position according to the casing, and then insert two parallel square steel bars under the top hanging ring of the top of the positioning steel skeleton, place two parallel sleepers on both sides of the casing, and support the square steel bars on the sleepers so that the center of the steel cage coincides with the center of the pile position. This method only ensures that the upper center of the steel cage coincides with the center of the pile at that time, but in the later process of pouring concrete, when inserting the conduit to pour concrete, the steel cage may tilt or hit the side wall, which is inconvenient to ensure that the center of the steel cage is in a straight line with the center of the pile. This not only affects the bearing capacity of the pile foundation, but also the thickness of the protective layer of the steel cage cannot be guaranteed, which affects the durability of the pile foundation. Therefore, an anchor pile steel bar centering device is proposed to solve the above problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides an anchor pile reinforcement centering device, which has the advantages of inconvenient centering and solves the problem of easy centering.
[0005] To achieve the above object, the present invention provides the following technical solution: an anchor pile reinforcement centering device, comprising a foundation, a pile hole is opened at the top of the foundation, a plurality of reinforcement bars are arranged inside the pile hole, and a centering structure is provided on the outer surfaces of the plurality of reinforcement bars;
[0006] The centering structure includes a positioning plate plugged into the inside of the pile hole, two picking plates are fixed on both ends of the positioning plate, and limiting plates are fixed on both the left and right walls of the positioning plate. The centering structure also includes an anti-sway structure arranged inside the two limiting plates.
[0007] Furthermore, the total diameter of the positioning plate is 280MM, the inner diameter of the positioning plate is 270MM, and the height of the positioning plate is 600MM.
[0008] Furthermore, the inner diameter of the pile hole is 300 MM, and the length of the limiting plate is 10 MM.
[0009] Furthermore, the anti-sway structure includes a movable plate that slides inside the two limit plates, and the opposite walls of the two movable plates are fixed with a stop block, and the front and rear walls of the inner cavity of the movable plate are fixed with anti-drop blocks, and a support rod passes through the interior of the anti-drop block, and a spring is sleeved on the outer surface of the support rod, and the front walls of the two anti-drop blocks at the front end are fixed with movable blocks.
[0010] Furthermore, the lower ends of the two limiting plates are each provided with a sliding hole for the movable plate to pass through and slide inside.
[0011] Furthermore, the left and right walls of the two support rods on the same side are fixed to the left and right walls of the inner cavity of the limiting plate, and the opposite walls of the left and right groups of anti-fall blocks are each provided with a circular hole for the support rod to pass through and slide inside.
[0012] Furthermore, the front walls of the two limiting plates are each provided with a long hole for the front end anti-fall block to pass through and slide inside.
[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:
[0014] The anchor pile reinforcement centering device is provided with a centering structure, which can quickly and conveniently place the reinforcement cage in the center of the pile hole, and can also effectively reduce the phenomenon of the reinforcement cage tilting or hitting the side wall when pouring concrete, so that the reinforcement cage can be centered and stably located in the pile hole. The two abutments can abut the left and right walls of the pile hole cavity, thereby further improving the centering stability of the positioning plate on the reinforcement cage. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the structure of the utility model;
[0016] Figure 2 This is a structural diagram of the positioning plate and the abutment block of the utility model;
[0017] Figure 3 This is a schematic diagram of the top view of the positioning plate of the utility model;
[0018] Figure 4 This is a schematic diagram of the internal structure of the limiting plate of the utility model.
[0019] In the figure: 1 foundation, 2 pile hole, 3 steel bar, 4 center structure, 41 positioning plate, 42 taking plate, 43 limit plate, 44 stop block, 45 moving plate, 46 anti-drop block, 47 support rod, 48 spring, 49 moving block. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figure 1 In this embodiment, an anchor pile steel bar centering device includes a foundation 1, a pile hole 2 is opened at the top of the foundation 1, a plurality of steel bars 3 are arranged inside the pile hole 2, and a centering structure 4 is provided on the outer surface of the plurality of steel bars 3.
[0022] See also Figures 1 to 4 The centering structure 4 in this embodiment includes a positioning plate 41 plugged into the inside of the pile hole 2, two picking plates 42 are fixed on the left and right ends of the positioning plate 41, and limiting plates 43 are fixed on the left and right walls of the positioning plate 41. The centering structure 4 also includes an anti-sway structure arranged inside the two limiting plates 43.
[0023] Among them, the total diameter of the positioning plate 41 is 280MM, the inner diameter of the positioning plate 41 is 270MM, and the diameter of the steel cage is 270MM, so that the steel cage can be located on the inner side of the positioning plate 41. The height of the positioning plate 41 is 600MM, which is convenient for construction workers to insert or remove it.
[0024] In addition, the inner diameter of the pile hole 2 is 300MM, the length of the limiting plate 43 is 10MM, and the sum of the two limiting plates 43 and the positioning plate 41 is the same as the diameter of the pile hole 2, so as to ensure that the positioning plate 41 can be centrally inserted into the pile hole 2.
[0025] Moreover, the positioning plate 41 is composed of two semicircular plates, and the front and rear of the two semicircular plates are hingedly connected by hinges to form the positioning plate 41, so that the positioning plate 41 is a cylindrical shape with a hollow interior and missing upper and lower ends.
[0026] See also Figure 1 、 Figure 2 and Figure 4 The anti-sway structure in this embodiment includes a movable plate 45 that slides inside the two limit plates 43. A stop block 44 is fixed to the opposite wall of the two movable plates 45. Anti-drop blocks 46 are fixed to the front and rear walls of the inner cavity of the movable plate 45. A support rod 47 passes through the interior of the anti-drop block 46. A spring 48 is sleeved on the outer surface of the support rod 47. A movable block 49 is fixed to the front wall of the two anti-drop blocks 46 at the front end.
[0027] Secondly, the lower ends of the two limiting plates 43 are each provided with a sliding hole for the movable plate 45 to pass through and slide inside, so that the movable plate 45 can drive the stop block 44 to move at the lower end of the limiting plate 43.
[0028] In addition, the left and right walls of the two support rods 47 on the same side are fixed to the left and right walls of the inner cavity of the limiting plate 43, and the opposite walls of the left and right groups of anti-drop blocks 46 are provided with circular holes for the support rods 47 to pass through and slide inside them, so that the anti-drop blocks 46 can slide on the surface of the support rods 47, which can effectively prevent the movable plate 45 from falling off from the limiting plate 43.
[0029] In addition, the front walls of the two limit plates 43 are provided with long holes for the front anti-drop block 46 to pass through and slide inside, so that the front anti-drop block 46 can be connected to the moving block 49, so that the staff can drive the moving plate 45 to move through the moving block 49.
[0030] The working principle of the above embodiment is:
[0031] When in use, by inserting the positioning plate 41 into the pile hole 2, the positioning plate 41 can be prevented from completely falling into the pile hole 2 by the two limit plates 43, thereby effectively reducing the phenomenon of the steel cage tilting or hitting the side wall when pouring concrete, so that the steel cage can be centered and stably located in the pile hole 2;
[0032] In addition, when the positioning plate 41 is inserted into the pile hole 2, the staff drives the two moving blocks 49 to move relative to each other, so that the two moving blocks 49 drive the two moving plates 45 to move relative to each other through the two front end anti-drop blocks 46. While the anti-drop blocks 46 squeeze the springs 48, the two moving plates 45 drive the two resisting blocks 44 to move relative to each other. When the positioning plate 41 is inserted into the pile hole 2, the two moving blocks 49 are released, so that the springs 48 push the left and right groups of anti-drop blocks 46 to move back to back. Then the left and right groups of anti-drop blocks 46 drive the left and right moving plates 45 to move back to back, and the moving plates 45 drive the two resisting blocks 44 to move back to back, so that the two resisting blocks 44 can abut against the left and right walls of the inner cavity of the pile hole 2, thereby further improving the centering stability of the positioning plate 41 on the steel cage.
[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An anchor pile reinforcement centering device, comprising a foundation (1), characterized in that: A pile hole (2) is provided at the top of the foundation (1), a plurality of steel bars (3) are provided inside the pile hole (2), and a centering structure (4) is provided on the outer surfaces of the plurality of steel bars (3); The centering structure (4) includes a positioning plate (41) plugged into the inside of the pile hole (2), two picking plates (42) are fixed to the left and right ends of the positioning plate (41), and limiting plates (43) are fixed to the left and right walls of the positioning plate (41). The centering structure (4) also includes an anti-sway structure arranged inside the two limiting plates (43).
2. The anchor pile reinforcement centering device according to claim 1, characterized in that: The total diameter of the positioning plate (41) is 280MM, the inner diameter of the positioning plate (41) is 270MM, and the height of the positioning plate (41) is 600MM.
3. The anchor pile reinforcement centering device according to claim 1, characterized in that: The inner diameter of the pile hole (2) is 300 mm, and the length of the limiting plate (43) is 10 mm.
4. The anchor pile reinforcement centering device according to claim 1, characterized in that: The anti-sway structure includes a movable plate (45) that slides inside the two limit plates (43), and a stop block (44) is fixed on the opposite wall of the two movable plates (45). Anti-drop blocks (46) are fixed on the front and rear walls of the inner cavity of the movable plate (45). A support rod (47) passes through the interior of the anti-drop block (46), and a spring (48) is sleeved on the outer surface of the support rod (47). The front walls of the two anti-drop blocks (46) at the front end are fixed with movable blocks (49).
5. The anchor pile reinforcement centering device according to claim 4, characterized in that: The lower ends of the two limiting plates (43) are each provided with a sliding hole for the movable plate (45) to pass through and slide inside.
6. The anchor pile reinforcement centering device according to claim 4, characterized in that: The left and right walls of the two support rods (47) on the same side are fixed to the left and right walls of the inner cavity of the limiting plate (43), and the opposite walls of the left and right groups of anti-drop blocks (46) are each provided with a circular hole for the support rods (47) to pass through and slide inside.
7. The anchor pile reinforcement centering device according to claim 4, characterized in that: The front walls of the two limiting plates (43) are both provided with long holes for the front end anti-falling blocks (46) to pass through and slide inside.