A reinforcement adjusting device for pile head of a cast-in-place pile

Abstract

The utility model relates to the technical field of reinforcing steel bar adjustment, put forward a kind of bored pile pile head reinforcing steel bar adjusting device, including support pole, one end of the support pole is fixed with connecting block, and the other end is fixed with handle, two interval settings adjusting rod are respectively fixed on the opposite two sides of the connecting block, calibrating assembly is further detachably fixed on the support pole, the calibrating assembly includes shell, the cavity inside of the shell has connecting rope, one end of the connecting rope is rotatably connected with shell, and the other end is fixed with ball, the outside of the shell is detachably buckled with transparent cover plate, reference line is engraved on the transparent cover plate and is vertically arranged.The utility model has the beneficial effects that: the mechanical linkage structure of calibrating assembly, ball and reference line provides visual, quantitative judgment basis for the vertical state of reinforcing steel bar, and improves engineering quality.

Description

Technical Field

[0001] This utility model relates to the technical field of rebar adjustment, specifically to a rebar adjustment device for cast-in-place pile heads. Background Technology

[0002] In the field of building construction, cast-in-place piles are a common form of deep foundation, and the anchorage quality of the longitudinal reinforcement at the pile head directly determines the safety of stress transfer between the foundation and the superstructure. After the cast-in-place piles are formed, the excess concrete at the top needs to be removed according to construction specifications to expose the pile head reinforcement. During this process, the pile head reinforcement is prone to bending deformation due to factors such as impact from earthmoving machinery, the impact of the removal operation, and the compression of materials. To meet the requirements of the "Code for Acceptance of Construction Quality of Concrete Structures", the bent reinforcement must be straightened before anchoring construction. Therefore, reinforcement straightening has become one of the key procedures in pile foundation construction.

[0003] Currently, simple tools are commonly used in engineering to bend the bent steel bars and gradually straighten them using the lever principle. During the straightening process, the steel bars are judged by manual visual observation to determine whether they are vertical. However, when judging the verticality of the steel bars by manual visual observation, it is easily affected by factors such as deviations in the operating angle and differences in the experience of the operators, resulting in vague judgment standards and difficulty in meeting the requirements of construction specifications. Utility Model Content

[0004] This utility model proposes a rebar adjustment device for cast-in-place piles. The calibration component provides a visual and quantitative basis for judging the verticality of the rebar through a mechanical linkage structure of connecting rope, ball bearings and reference line, thereby improving the quality of the project.

[0005] Therefore, the technical solution adopted is as follows: A device for adjusting the reinforcing bars at the head of a cast-in-place pile includes a support rod. A connecting block is fixed to one end of the support rod, and a handle is fixed to the other end. Two adjusting rods are fixed at intervals on opposite sides of the connecting block. A calibration component is detachably fixed to the support rod. The calibration component includes a housing. A connecting rope is located inside the cavity of the housing. One end of the connecting rope is rotatably connected to the housing, and a ball bearing is fixed to the other end. A transparent cover plate is detachably fastened to the outside of the housing. Vertical reference lines are engraved on the transparent cover plate. A further technical solution is that the cross-section of the shell is arranged in a fan shape, and an arc-shaped groove is formed on its arc edge. The width of the arc-shaped groove is adapted to the diameter of the ball, and the ball is embedded in the arc-shaped groove and can roll along the path of the arc-shaped groove.

[0006] A further technical solution is that the connecting rope always remains straight when the ball rolls in the arc-shaped groove.

[0007] A further technical solution involves having two adjusting rods located on the same side of the connecting block arranged in an alternating pattern.

[0008] A further technical solution is that the outer wall of the adjusting rod has an anti-rust coating.

[0009] A further technical solution is that the calibration component also includes a first connecting half-ring and a second connecting half-ring that are interlocked with each other. The first connecting half-ring is fixed to the housing, and the support rod passes through the circular hole formed by the first connecting half-ring and the second connecting half-ring after they are joined together and is locked with bolts and nuts.

[0010] A further technical solution is that a horizontally arranged support shaft is fixed to the inner wall of the housing, and a rotating ring is sleeved on the support shaft and rotatably connected thereto. The top end of the connecting rope is fixed to the rotating ring, and the bottom end is connected to a ball bearing.

[0011] The working principle and beneficial effects of this application are as follows: The calibration component provides a visual and quantitative basis for judging the verticality of steel bars through a mechanical linkage structure of connecting ropes, ball bearings, and reference lines. It completely solves the problems of large subjective errors and vague judgment standards in traditional manual visual judgment, improves work efficiency, meets construction specifications, and enhances project quality. Attached Figure Description

[0012] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a schematic diagram of the overall structure of this application from another perspective; Figure 3 This is a schematic diagram of the calibration component described in this application; Figure 4 This is a schematic diagram of the internal structure of the housing described in this application.

[0014] In the diagram: 1. Support rod; 2. Connecting block; 3. Adjusting rod; 4. Calibration assembly; 41. Housing; 42. First connecting half-ring; 43. Second connecting half-ring; 44. Bolt; 45. Nut; 46. Support shaft; 47. Rotary ring; 48. Transparent cover plate; 49. Connecting rope; 410. Ball bearing; 411. Arc-shaped groove; 412. Reference line; 5. Handle. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0016] like Figures 1-4 As shown, a pile head reinforcement adjustment device for cast-in-place piles includes a support rod 1. One end of the support rod 1 is fixed with a connecting block 2, and the other end is fixed with a handle 5. Two adjustment rods 3 are fixed at intervals on opposite sides of the connecting block 2. A calibration component 4 can also be detachably fixed to the support rod 1. The calibration component 4 includes a housing 41. A connecting rope 49 is located inside the cavity of the housing 41. One end of the connecting rope 49 is rotatably connected to the housing 41, and the other end is fixed with a ball bearing 410. A transparent cover plate 48 is detachably fastened to the outside of the housing 41. A vertically set reference line 412 is engraved on the transparent cover plate 48.

[0017] The housing 41 has a fan-shaped cross-section with an arc-shaped groove 411 on its curved edge. The width of the arc-shaped groove 411 matches the diameter of the ball bearing 410. The ball bearing 410 is embedded in the arc-shaped groove 411 and can roll along its path. Furthermore, when the ball bearing 410 rolls in the arc-shaped groove 411, the connecting rope 49 remains straight, neither bending to affect vertical alignment nor becoming too taut to resist the rolling motion of the ball bearing 410 and affect its angle of movement. The arc-shaped groove 411 restricts the movement trajectory of the ball bearing 410, adapts to the fan-shaped housing structure, and ensures smooth sliding of the ball bearing 410 without detaching from the calibration component 4. It should be noted that the transparent cover 48 can be installed on one side of the housing 41 using a snap-fit ​​method. Operators can periodically open the transparent cover 48 to apply lubricating oil to the arc-shaped groove 411 to reduce friction and wear between the ball bearing 410 and the arc-shaped groove 411.

[0018] In the embodiments of this application, the operator holds the handle 5 and moves the device to the bent pile head reinforcement. The reinforcement is then passed between the adjacent adjusting rods 3 on both sides of the connecting block 2. The operator applies a lateral force to the support rod 1 through the handle 5, opposite to the bending direction of the reinforcement. The force is transmitted through the support rod 1 and the connecting block 2 to the adjusting rod 3. The adjusting rod directly applies a corrective force to the bent reinforcement, gradually bending the reinforcement towards the vertical direction to achieve the purpose of straightening the bent reinforcement. This allows for convenient and quick straightening of the pile head reinforcement, reducing construction costs.

[0019] During the straightening process, the calibration component 4 swings synchronously with the support rod 1. Due to gravity, the ball bearing 410 slides within the arc-shaped groove 411 via the connecting rope 49, maintaining a vertically hanging state. When the operator observes that the connecting rope 49 and the reference line 412 on the transparent cover plate 48 are completely aligned, it indicates that the support rod 1 is in a vertical state, and the corresponding rebar is also adjusted to a vertical position. If they are not aligned, fine-tuning continues until the connecting rope 49 and the reference line 412 are aligned, completing the straightening of a single rebar. Through the calibration component 4, the transparent cover plate 48, made of transparent material, facilitates observation of the relative position of the connecting rope 49 and the reference line 412, visually displaying whether the rebar is in a vertical state. In addition, the transparent cover plate 48 can close the opening of the shell 41, protecting the internal components and preventing the ball bearing 410 from being affected by the external environment. This solves the problem of insufficient accuracy caused by relying on manual visual judgment in traditional methods, improves work efficiency, meets construction specifications, and enhances project quality.

[0020] like Figures 1-2 As shown, the two adjusting rods 3 located on the same side of the connecting block 2 are staggered. The staggered design of the pair of adjusting rods 3 forms a multi-directional clamping space, ensuring that the reinforcing bar can be clamped and obtain effective leverage force when turned. The straightening is achieved by utilizing the lever principle, which is more labor-saving and faster than the traditional manual straightening or hammering method. It should be noted that when the support rod 1 is in a vertical state and the reinforcing bar is in a straightened state, the pair of adjusting rods 3 abut against both sides of the reinforcing bar. At the same time, the outer wall of the adjusting rods 3 is provided with an anti-rust coating to improve the rust resistance of the adjusting rods 3.

[0021] like Figure 3 As shown, the calibration assembly 4 also includes a first connecting half-ring 42 and a second connecting half-ring 43 that interlock with each other. The first connecting half-ring 42 is fixed to the housing 41. The support rod 1 passes through the circular hole formed by the mating of the first connecting half-ring 42 and the second connecting half-ring 43 and is locked in place by bolts 44 and nuts 45. The calibration assembly 4 is fixed to the outer wall of the support rod 1 by bolts 44 and nuts 45. Specifically, the interference fit is achieved by using the combined inner hole of the first connecting half-ring 42 and the second connecting half-ring 43 to ensure that the calibration assembly 4 swings synchronously with the support rod 1.

[0022] like Figure 4 As shown, a horizontally arranged support shaft 46 is fixed to the inner wall of the housing 41. A rotating ring 47 is rotatably connected to the support shaft 46. The top end of the connecting rope 49 is fixed to the rotating ring 47, and the bottom end is connected to a ball bearing 410. The support shaft 46 provides a fulcrum for the rotating ring 47, ensuring that the rotating ring 47 can rotate freely to accommodate the swing of the support rod 1.

[0023] In use, the operator holds handle 5 and moves the device to the bent pile head reinforcement. The reinforcement is threaded between adjacent adjusting rods 3 on both sides of the connecting block 2. The operator applies a lateral force to the support rod 1 through handle 5, opposite to the bending direction of the reinforcement. The force is transmitted through the support rod 1 and connecting block 2 to the adjusting rod 3, which directly applies a corrective force to the bent reinforcement, gradually bending it vertically to straighten it. This allows for convenient and quick straightening of pile head reinforcement, reducing construction costs. During the straightening process, a calibration group... Component 4 swings synchronously with support rod 1: due to gravity, the connecting rope 49 drives the ball bearing 410 to slide in the arc-shaped groove 411, always maintaining a vertical hanging state. When the operator observes that the connecting rope 49 and the reference line 412 on the transparent cover plate 48 are completely aligned, it indicates that support rod 1 is in a vertical state, and the corresponding steel bar is also adjusted to a vertical position. If they are not aligned, continue to fine-tune the force until the connecting rope 49 is aligned with the reference line 412, completing the straightening of a single steel bar. The calibration component 4 visually displays whether the steel bar is in a vertical state.

[0024] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A device for adjusting the reinforcing steel bars at the head of a cast-in-place pile, characterized in that, include: A support rod (1) is fixed with a connecting block (2) at one end and a handle (5) at the other end. Two adjustable rods (3) are fixed at intervals on the two opposite sides of the connecting block (2). A calibration component (4) can also be detachably fixed on the support rod (1). The calibration component (4) includes a housing (41). A connecting rope (49) is provided inside the cavity of the housing (41). One end of the connecting rope (49) is rotatably connected to the housing (41), and a ball bearing (410) is fixed at the other end. A transparent cover plate (48) is detachably fastened to the outside of the housing (41). A vertically set reference line (412) is engraved on the transparent cover plate (48).

2. The pile head reinforcement adjustment device according to claim 1, characterized in that, The shell (41) has a fan-shaped cross-section and an arc-shaped groove (411) on its arc edge. The width of the arc-shaped groove (411) is adapted to the diameter of the ball (410). The ball (410) is embedded in the arc-shaped groove (411) and can roll along the path of the arc-shaped groove (411).

3. The pile head reinforcement adjustment device according to claim 2, characterized in that, When the ball (410) rolls in the arc-shaped groove (411), the connecting rope (49) always remains in a straight line.

4. The pile head reinforcement adjustment device according to claim 1, characterized in that, The two adjusting rods (3) located on the same side of the connecting block (2) are staggered.

5. The pile head reinforcement adjustment device according to claim 1, characterized in that, The outer wall of the adjusting rod (3) has an anti-rust coating.

6. The pile head reinforcement adjustment device according to claim 1, characterized in that, The calibration component (4) also includes a first connecting half ring (42) and a second connecting half ring (43) that are interlocked with each other. The first connecting half ring (42) is fixed to the housing (41). The support rod (1) passes through the circular hole formed by the first connecting half ring (42) and the second connecting half ring (43) and is locked by bolts (44) and nuts (45).

7. The pile head reinforcement adjustment device according to claim 1, characterized in that, The inner wall of the housing (41) is fixed with a horizontally arranged support shaft (46), and a rotating ring (47) is sleeved on the support shaft (46) and rotatably connected thereto. The top end of the connecting rope (49) is fixed on the rotating ring (47), and the bottom end is connected to a ball bearing (410).

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