Climbing type pile foundation reinforcement cage deviation preventing device

Abstract

The utility model discloses a climbing type pile foundation reinforcement cage deviation preventing device, which belongs to the technical field of municipal administration and comprises a pile foundation orifice cross beam, a double-layer support, a hydraulic telescopic rod, an oil cylinder built-in displacement sensor, a turnover climbing claw, a reinforcement cage U-shaped hook, a support plate, a lifting winch, a steel wire rope, a hydraulic device, a hydraulic pipe and a PLC (programmable logic controller) control system. The double-layer telescopic hydraulic rods are hydraulically driven to respectively support the inner wall of a pile hole and stretch the hydraulic rods, so that center positioning and deviation correction of the reinforcement cage are realized, deviation or floating of the reinforcement cage caused by various factors during lowering of the reinforcement cage and concrete pouring is effectively prevented, and the construction quality of a pile foundation is ensured. Meanwhile, the built-in displacement sensor can provide early warning and accurate positioning, the construction efficiency is improved, the engineering rework and maintenance cost is reduced, and the building safety is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the field of municipal engineering construction, and particularly relates to a pile foundation reinforcement cage installation technology. Background Art

[0002] Pile foundations are a common type of foundational work in civil engineering. They involve sinking a steel cage into the foundation soil and then pouring concrete to provide support and stability for buildings. The steel cage is a key component of the pile foundation, making accurate positioning during installation and concrete pouring crucial. This directly impacts the pile foundation's bearing capacity and the stability of the entire building. However, in actual construction, the pile foundation's steel cage often deviates from its vertical position due to various external forces and environmental factors. During installation and lowering, improper operation of the lifting equipment, wind, and other external factors can easily cause the cage to shake and shift. Furthermore, during concrete pouring, the impact of the concrete flow can cause the cage to shift. Severe cage misalignment can significantly reduce the pile foundation's bearing capacity, deteriorate the quality of the foundation, and even compromise the safety of the building.

[0003] To address the problem of cage misalignment, the typical approach relies on manual adjustments, such as continuous observation and manual straightening during the cage's lowering. However, this method is not only inefficient but also difficult to guarantee accuracy, especially in large-scale projects, and cannot meet the requirements of high-quality construction. Currently, there are methods on the market for adjusting and positioning the pile foundation cage by adding positioning bars to the cage and installing guide mechanisms at the pile foundation opening. However, in actual construction, especially for deep pile foundations, the cage can still float or become misaligned during concrete pouring, resulting in insufficient concrete cover thickness and affecting the quality of the pile foundation.

[0004] Therefore, it is of great practical significance to develop a crawling pile foundation reinforcement cage anti-deflection device that can accurately position and adjust the reinforcement cage. This can not only improve the efficiency and quality of pile foundation construction, reduce rework and maintenance costs, but also provide reliable protection for the safety and stability of the building. Summary of the Invention

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a climbing pile foundation reinforcement cage anti-deviation device to solve the problems of low efficiency and inaccurate positioning of the existing manual experience adjustment and the insignificant correction effect of the mechanical reinforcement cage anti-deviation device on deep pile foundation holes.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A climbing pile foundation reinforcement cage anti-deviation device includes a pile foundation hole crossbeam, a double-layer support, a hydraulic telescopic rod, a displacement sensor built into the oil cylinder, a reversible climbing claw, a reinforcement cage U-shaped hook, a support plate, a hoisting winch, a steel wire rope, a hydraulic device, a hydraulic pipe, and a PLC control system. The pile foundation hole crossbeam is located above the pile foundation hole casing. A steel wire rope is suspended from the pile foundation hole crossbeam, and the double-layer support is connected below the steel wire rope. The bottom of the support is provided with a circular bottom plate. A vertical hydraulic rod is provided at the center of the double-layer support, and horizontal hydraulic rods are provided on both the upper and lower layers. The upper horizontal hydraulic rod is provided with a reversible climbing claw at the end, and the lower horizontal hydraulic rod is provided with a support plate at the end. The hydraulic device is located on the ground near the pile foundation hole, and power is supplied to the hydraulic rod through the hydraulic pipe. The control system controls the extension and retraction length of the hydraulic rod based on feedback from the displacement sensor, thereby adjusting the deviation of the reinforcement cage.

[0008] As a further optimization of the present technical solution, the bottom plate of the double-layer support is a disc structure, and the middle position above the base is a vertical hydraulic telescopic rod; the vertical hydraulic telescopic rod is divided into a hydraulic cylinder and a telescopic rod, and the hydraulic cylinder side is provided with a built-in oil cylinder displacement sensor and a hydraulic pipe access port; a support base is provided below the vertical hydraulic telescopic rod, and a lifting beam is provided above it. Three lifting ears are provided above the bottom plate, and a wire rope is connected above the lifting ear, which is connected to the lifting winch on the pile foundation hole beam, so as to facilitate the up and down movement of the entire steel cage anti-deviation device, maintain a short distance from the concrete pouring liquid level, and realize the adjustment of the steel cage as it is poured, which is conducive to completing the position correction of the steel cage before the initial setting of the concrete, reducing the difficulty of correction.

[0009] As a further optimization of this technical solution, the double-layer support consists of two layers, the lower layer is provided with three hydraulic telescopic rods, located above the disc base, the angles between the hydraulic telescopic rods are 120 degrees, and they are divided into hydraulic cylinders and telescopic rods. One end of the hydraulic cylinder is connected to the support bolt, and the end of the telescopic rod is welded to the support plate; the hydraulic cylinder is provided with a hydraulic pipe access port; it is staggered with the upper hydraulic telescopic rod, which reduces the probability of mutual interference and improves the uniformity of force.

[0010] As a further preferred feature of this technical solution, the lower hydraulic telescopic rod is composed of a hydraulic cylinder and a telescopic rod. One end of the hydraulic cylinder is connected to the support, while the end of the telescopic rod is connected to a support plate. The support plate is curved, with the same curvature as the pile foundation hole. The hydraulic telescopic rod can extend toward the pile foundation hole wall, acting on the pile foundation hole wall, effectively centering the reinforcement cage anti-deviation device and providing a central reference point for the subsequent correction of the reinforcement cage.

[0011] As a further optimization of the present technical solution, the lower layer of the double-layer support is provided with three hydraulic telescopic rods, the angles between the hydraulic telescopic rods are all 120 degrees, and they are staggered by 60 degrees with the hydraulic telescopic rods of the lower layer. One end of the hydraulic cylinder of the hydraulic telescopic rod is connected to the support, and the end of the telescopic rod is hinged to the flip climbing claw, and the hydraulic telescopic rods are reinforced with cross bars; the hydraulic cylinder is provided with a hydraulic pipe access port, and the hydraulic telescopic rods are connected with cross bars to form a triangular stable structure, which enhances the force stability in all directions.

[0012] As a further optimization of the present technical solution, the upper hydraulic telescopic rod is divided into two parts, a hydraulic cylinder and a telescopic rod. One end of the hydraulic cylinder is connected to the support, and the end of the telescopic rod is connected to a flip climbing claw. The flip climbing claw is U-shaped and can be engaged with the U-shaped hook of the steel cage up and down. According to the distance between the flip climbing claw and the U-shaped hook of the steel cage, the steel cage correction is achieved by adjusting the length of the hydraulic telescopic rod in the three directions of the upper layer of the support.

[0013] As a further optimization of the present technical solution, the U-shaped hook of the steel cage is located on the inner side of the steel cage, horizontally welded to the steel cage, and arranged at a certain distance in the vertical direction of the steel cage; the U-shaped hook of the steel cage can be engaged with the flip climbing claw up and down to control the deviation of the steel cage at close range, thereby preventing the steel cage from being deflected or floating due to the impact force of concrete pouring, thereby ensuring that the position of the steel cage is accurate and the thickness of the concrete cover meets the design and standard requirements.

[0014] As a further optimization of the present technical solution, the built-in displacement sensor of the oil cylinder is located inside the hydraulic telescopic rod, which can monitor the length of the hydraulic telescopic rod and the position changes of the steel cage in real time. Once a deviation trend is detected, an alarm will be issued immediately so that construction personnel can take timely measures to make adjustments, thereby greatly improving the accuracy and safety of construction.

[0015] The beneficial effects of the utility model are:

[0016] 1) The utility model divides the support into two layers, an upper layer and an lower layer, with three hydraulic telescopic rods on each layer. The ends of the hydraulic telescopic rods on the lower layer are connected to arc-shaped support plates, which can effectively adjust the center positioning of the anti-deviation device of the steel cage and provide a center positioning reference point for the upper layer of the support; the ends of the hydraulic telescopic rods on the upper layer are connected to flip-up U-shaped climbing claws, which engage with the U-shaped hooks on the steel cage to complete the effective deviation correction of the steel cage.

[0017] 2) The steel cage anti-deviation device is suspended from the crossbeam of the pile foundation hole by a steel wire rope. It has a simple structure and is easy to operate. It can realize the rapid movement of the steel cage anti-deviation device up and down, always maintaining a certain distance from the concrete pouring liquid surface, and realizing deviation correction during pouring, reducing the problem of difficulty in correction due to the excessive length of the steel cage.

[0018] 3) Each layer of hydraulic telescopic rod is equipped with a built-in displacement sensor in the oil cylinder. The telescopic length of the hydraulic telescopic rod can be remotely adjusted through the control system to achieve precise control, thereby improving the accuracy and automation level of the steel cage construction.

[0019] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Attachment Figure 1 It is a front view of a climbing pile foundation reinforcement cage anti-deviation device of the utility model.

[0021] Attachment Figure 2 The utility model is a schematic diagram of the lower structure of a double-layer support of a climbing pile foundation steel cage anti-deviation device.

[0022] Attachment Figure 3 The utility model is a schematic diagram of the upper structure of a double-layer support of a climbing pile foundation steel cage anti-deviation device.

[0023] Attachment Figure 4 The utility model is a schematic diagram of the planar arrangement of the U-shaped hooks of the steel cage of a climbing pile foundation steel cage anti-deviation device.

[0024] In the figure: 1-pile foundation hole crossbeam, 2-hoisting winch, 201-steel wire rope, 3-steel casing, 4-rebar cage, 401-rebar cage U-hook, 5-double-layer support, 501-disc bottom plate, 502-lifting eye, 503-vertical center hydraulic pipe bracket, 504-vertical center hydraulic pipe, 505-support top beam, 506-lower hydraulic telescopic rod, 507-cylinder built-in displacement sensor, 508-support plate, 509-upper hydraulic telescopic rod, 510-triangular cross brace, 511-reversible climbing claw, 6-hydraulic device, 601-hydraulic pipe, 7-PLC control system, 8-pile foundation hole. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-4 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort shall fall within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, specific orientation structure and operation, and therefore should not be understood as a limitation on the present invention.

[0027] Example 1

[0028] like Figure 1-4 As shown, a climbing pile foundation steel cage anti-deviation device includes a pile foundation hole beam, a double-layer support, a hydraulic telescopic rod, a built-in displacement sensor in the oil cylinder, a flip climbing claw, a steel cage U-hook, a support plate, a lifting winch, a wire rope, a hydraulic device, a hydraulic pipe, and a PLC control system. The pile foundation hole beam 1 is installed above the pile foundation hole steel casing 3, and the lifting winch 2 is fixed at the center position above the pile foundation hole beam 1. The wire rope 201 of the lifting winch 2 passes through the pile foundation hole beam 1 and is connected to the lifting lug 502 to facilitate the up and down movement of the double-layer support 5; the hydraulic device 6 is located above the double-layer support 5, and provides power to the vertical center hydraulic pipe 504, the lower hydraulic telescopic rod 506 and the upper hydraulic telescopic rod 509; the PLC control system 7 is located on the ground outside the pile foundation hole 8, and can remotely control the entire system.

[0029] like Figure 2 As shown, in this embodiment, the double-layer support 5 is provided with a disc bottom plate 501 at the bottom, and three lifting ears 502 are provided above the disc bottom plate; a lower hydraulic telescopic rod 506 is provided above the disc bottom plate 501, and the end of the lower hydraulic telescopic rod 506 is connected to the support plate 508. Through horizontal extension and retraction, the support plate 508 is offset against the hole wall of the pile foundation hole 8, thereby realizing the center positioning of the double-layer support 5.

[0030] like Figure 3 、 4 As shown, in this embodiment, a vertical central hydraulic pipe 504 is provided at the center of the double-layer support 5; the steel cage U-shaped hooks 401 are vertically arranged at a certain distance on the steel cage 4, with 3 on each layer, which are at the same center position as the flip climbing claw 511; the vertical central hydraulic pipe 504 is lifted up and down to adjust the vertical distance between the flip climbing claw 511 and the steel cage U-shaped hook 401; the double-layer support 5 is provided with an upper hydraulic telescopic rod 509, which is adjusted by horizontal extension and contraction to adjust the horizontal distance between the flip climbing claw 511 and the steel cage U-shaped hook 401, so as to achieve the engagement between the two and the adjustment of the steel cage offset.

[0031] The above content is merely an example and explanation of the structure of the utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the utility model.

Claims

1. A climbing pile foundation reinforcement cage anti-deviation device, comprising a pile foundation hole crossbeam, a double-layer support, a hydraulic telescopic rod, a displacement sensor built into the oil cylinder, a reversible climbing claw, a reinforcement cage U-shaped hook, a support plate, a lifting winch, a wire rope, a hydraulic device, a hydraulic pipe, and a PLC control system, characterized in that: The pile foundation hole mouth crossbeam is located above the pile foundation hole mouth steel casing, and a lifting winch is provided on the crossbeam, and a double-layer support is suspended under the steel wire rope on the winch; the double-layer support is divided into upper and lower layers, and a circular bottom plate is provided at the bottom of the support, and a vertical hydraulic pipe is provided in the center of the support; a hydraulic telescopic rod is provided around the upper support, and a flip climbing claw is provided at the top of the hydraulic telescopic rod; a hydraulic telescopic rod is provided around the lower support, and a support plate is provided at the top of the hydraulic telescopic rod; the hydraulic device is located above the double-layer support, and power is provided to each hydraulic rod through a hydraulic pipe; the PLC control system is located on the ground outside the pile foundation hole, and controls the telescopic length of the hydraulic rod according to the feedback information of the built-in displacement sensor of the oil cylinder.

2. A climbing pile foundation reinforcement cage anti-deviation device according to claim 1, characterized in that: The bottom of the double-layer support is a disc base, and the middle position above the base is a vertical hydraulic telescopic rod; the vertical hydraulic telescopic rod is divided into a hydraulic cylinder and a telescopic rod, and the hydraulic cylinder side is provided with a built-in displacement sensor and a hydraulic pipe access port; a support base is provided below the vertical hydraulic telescopic rod, and a lifting beam is provided above it; three lifting ears are provided above the disc base, which are connected to the hole beam by steel wire ropes; the double-layer support is arranged in two layers, upper and lower.

3. A climbing pile foundation reinforcement cage anti-deviation device according to claim 2, characterized in that: The lower layer of the support is provided with three hydraulic telescopic rods, located above the disc base, and a cylinder-built-in displacement sensor is set in the hydraulic telescopic rods; the hydraulic telescopic rods are distributed at an angle of 120 degrees in the horizontal direction, and are divided into a hydraulic cylinder and a telescopic rod. One end of the hydraulic cylinder is connected to the support bolt, and the end of the telescopic rod is welded to the support plate; the hydraulic cylinder is provided with a hydraulic pipe access port; the support plate is arc-shaped, and the curvature is the same as the curvature of the pile foundation hole.

4. The anti-deviation device for a climbing pile foundation reinforcement cage according to claim 2, characterized in that: The upper layer of the support is provided with three hydraulic telescopic rods, and a built-in displacement sensor of the oil cylinder is arranged in the hydraulic telescopic rods; the hydraulic telescopic rods are distributed at an angle of 120 degrees in the horizontal direction, and are staggered at an angle of 60 degrees with the hydraulic telescopic rods in the lower layer. One end of the hydraulic cylinder of the hydraulic telescopic rod is connected to the support, and the end of the telescopic rod is hinged to the flip climbing claw. The hydraulic telescopic rods are reinforced and fixed with a cross bar; the hydraulic cylinder is provided with a hydraulic pipe access port.

5. The climbing pile foundation reinforcement cage anti-deviation device according to claim 1, characterized in that: The U-shaped hooks of the steel cage are welded to the inner side of the steel cage and arranged at regular intervals; the flippable climbing claws are U-shaped and are used in conjunction with the U-shaped hooks of the steel cage.

6. The climbing pile foundation reinforcement cage anti-deviation device according to claim 1, characterized in that: The hydraulic device is located on the ground near the pile hole, and the end of the hydraulic pipe is connected to the fixed rod of the hydraulic telescopic rod. The extension and retraction of the hydraulic rod is controlled by the control system.

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