An adjustable inclination underwater concrete batter pile limiting device

Abstract

The utility model discloses an underwater concrete inclined pile limiting device of adjustable inclination, which comprises a limiting frame and an inclined pile body, the bottom surface of the limiting frame is fixedly installed with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a lifting plate, the upper surface of the lifting plate is hinged with an adjusting frame, the two sides of the adjusting frame are fixedly installed with electric push rods, and the output end of the electric push rod is hinged with a clamping piece for clamping the inclined pile body; through the extension and retraction of the hydraulic cylinder and the driving of the electric push rod, the controllable adjustment of the inclination angle of the inclined pile body is realized. The utility model can dynamically adjust the angle of the inclined pile body, specifically, a linkage system composed of a driving mechanism, an angle adjusting mechanism and a clamping execution mechanism is arranged, static and passive guidance is upgraded to dynamic and active adjustment, controllable push-pull force can be applied to the inclined pile body during construction, so that the posture of the inclined pile body can be corrected in real time, and it is ensured that the axis of the inclined pile always keeps consistent with the design slope.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and in particular relates to an adjustable underwater concrete inclined pile limiting device. Background Technology

[0002] Inclined cast-in-place piles are a key type of foundation used in bridges, ports, and other engineering projects to withstand horizontal loads. Their construction typically involves drilling, lowering the reinforcing cage, and underwater concrete pouring.

[0003] In existing technologies, the control of the angle of inclined piles mainly relies on the pre-set fixed guide frame or the rough positioning of the drilling rig. This method has significant drawbacks: once construction begins, it is impossible to fine-tune the angle of the already drilled inclined pile or the steel cage being laid, or to dynamically correct its deviation. Due to the influence of gravity, the drill bit and steel cage are prone to deviate from the design axis, leading to excessive verticality of the pile, insufficient thickness of the protective layer of the steel cage, and even construction problems such as cage snagging on the guide pipe, which seriously restricts the quality of pile formation and structural safety. To solve the above problems, an adjustable-angle underwater concrete inclined pile limiting device is proposed. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable tilt angle underwater concrete inclined pile limiting device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to an adjustable tilt angle underwater concrete inclined pile limiting device, comprising a limiting frame and an inclined pile body. A hydraulic cylinder is fixedly installed on the bottom surface of the limiting frame, and a lifting plate is fixedly connected to the output end of the hydraulic cylinder. An adjusting frame is hinged to the upper surface of the lifting plate, and electric push rods are fixedly installed on both sides of the adjusting frame. A clamping member for gripping the inclined pile body is hinged to the output end of the electric push rod. The tilt angle of the inclined pile body can be controlled and adjusted by the extension and retraction of the hydraulic cylinder and the driving of the electric push rods.

[0006] Preferably, the clamping member is a semi-circular plate.

[0007] Preferably, the radius of curvature of the inner arc-shaped surface of the clamping member is greater than the radius of the inclined pile body.

[0008] Preferably, the arc-shaped inner side of the clamping member is in line contact with the peripheral side of the inclined pile body.

[0009] Preferably, a steel casing is fitted around the periphery of the inclined pile body, and a reinforcing cage is installed inside the casing.

[0010] Preferably, the inclined pile body is further provided with a guide pipe, and a guide is installed on the guide pipe.

[0011] Preferably, a guide hammer is provided at the bottom of the inclined pile body.

[0012] This utility model has the following beneficial effects: 1. This utility model can dynamically adjust the angle of the inclined pile body. Specifically, it upgrades static and passive guidance to dynamic and active adjustment by setting up a linkage system consisting of a drive mechanism, an angle adjustment mechanism and a clamping execution mechanism. The device can apply a controllable pushing and pulling force to the inclined pile body during construction, thereby correcting its posture in real time and ensuring that the axis of the inclined pile is always consistent with the design slope, thus solving the pile quality problem caused by angle deviation. 2. This utility model achieves self-adaptation and self-locking of clamping force, ensuring the reliability and effectiveness of angle adjustment. Specifically, through the eccentric clamping component and its hinge structure, when the clamping component contacts the surface of the inclined pile, it can generate a slight rotation under the thrust of the linear actuator, thereby changing from simple planar pressing to rotational wedge clamping, generating a self-locking clamping force. This adaptive characteristic allows it to tolerate the unevenness of the pile surface and clamps tighter and tighter when pushing and pulling the inclined pile, eliminating the risk of slippage that may occur with traditional clamping methods and providing a solid foundation for angle adjustment.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear structure of this utility model; Figure 3 This is a schematic diagram of the right-side structure of this utility model; Figure 4 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle; Figure 5 This is a cross-sectional structural diagram of the present invention.

[0016] The components represented by each number in the attached diagram are listed below: 1. Limiting frame; 2. Inclined pile body; 3. Hydraulic cylinder; 4. Adjusting frame; 5. Electric push rod; 6. Clamping component; 7. Lifting plate; 8. Steel casing; 9. Guide hammer; 10. Core column; 11. Reinforcing cage; 12. Guide device; 13. Conduit; 14. Guide rib plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Please see Figures 1-5 As shown, this utility model is an adjustable underwater concrete inclined pile limiting device, including a limiting frame 1 and an inclined pile body 2. The limiting frame 1 serves as the supporting foundation of the entire device and is fixedly installed on the construction platform or the ground. The inclined pile body 2 is a pile hole that has been drilled or is under construction, and its interior will eventually form a pile body composed of a steel cage 11 and underwater concrete.

[0020] To achieve active adjustment of the angle of the inclined pile body 2, a hydraulic cylinder 3, serving as the main drive source, is fixedly installed on the bottom surface of the limiting frame 1. The output end of the hydraulic cylinder 3 faces upward and is fixedly connected to a lifting plate 7. An adjusting frame 4 is hinged to the upper surface of the lifting plate 7 via a pin. This hinge structure is crucial, as it allows the adjusting frame 4 to swing within a certain angle range, thereby adapting to the positional changes of the inclined pile body 2 during the adjustment process. The extension and retraction length of the hydraulic cylinder 3 is controllable. The extension and retraction displacement of the piston rod of the hydraulic cylinder 3 is linearly related to the displacement of the support point of the inclined pile body 2. Based on the clear geometric relationship (known length of the inclined pile body 2, clamping point position, etc.), a strict mathematical correspondence between the displacement and the change in inclination angle can be calculated. During operation, it is only necessary to record or control the displacement change of the hydraulic cylinder 3, and the angle adjustment amount can be accurately obtained through a conversion table.

[0021] On both sides of the adjusting frame 4, electric push rods 5 are symmetrically fixedly installed. The output end of each electric push rod 5 is hinged to a clamping member 6 through a pin. The clamping member 6 is a semi-arc plate, which is used to clamp and lock the inclined pile body 2. The radius of curvature of the inner arc surface of the clamping member 6 is specially designed to be greater than the radius of the inclined pile body 2. This structure makes the inner arc surface of the clamping member 6 naturally form a line contact with the peripheral surface of the inclined pile body 2 when the clamping member 6 contacts the inclined pile body 2, rather than a surface contact. When the electric push rod 5 outputs thrust, this line contact will be converted into an eccentric torque that causes the clamping member 6 to rotate slightly around its hinge point, thereby generating a strong adaptive wedging effect, realizing mechanical self-locking, and ensuring absolute reliability and no risk of slippage when pushing and pulling the inclined pile.

[0022] At the borehole opening of the inclined pile body 2, a steel casing 8 is fitted. During installation, the steel casing 8 is guided by a special guide frame (not shown in the figure) to ensure a precise initial inclination. Its main function is to prevent borehole collapse, maintain the mud head, and provide the first positioning reference for the entire inclined pile. A guide hammer 9 is installed at the bottom of the inclined pile body 2. The guide hammer 9 is part of the drilling equipment. According to the instructions, a specific guiding device is installed at its bottom to overcome the tendency of gravity to sag after the drill bit extends out of the steel casing 8, ensuring that the drilling is carried out at the designed inclination. Inside the inclined pile body 2, a core column 10 is also installed. The core column 10 can be used as a temporary support or testing reference during construction, or it can be part of the permanent structure. A guide pipe 13 for pouring underwater concrete runs through the interior of the inclined pile body 2. To prevent interference (i.e., "cage snagging") between the guide tube 13 and the reinforcing cage 11 when lowering or raising the guide tube 13 in the inclined hole, a guide 12 is installed on the guide tube 13. The guide 12 includes a fish fin dorsal part welded to the bottom of the guide tube and a bulge guide added in the middle of the guide tube. In addition, a guide rib plate 14 can also be provided on the reinforcing cage 11 or the guide tube 13. Its function is similar to that of the guide 12, which is to provide additional guidance for the lowering of the reinforcing cage 11 and ensure that it is smoothly positioned in the inclined hole.

[0023] Working principle: When the angle of the inclined pile body 2 needs to be adjusted, the two symmetrically arranged electric push rods 5 are first activated. The push rods output thrust, pushing the clamping member 6 to move towards the inclined pile body 2. Since there is an eccentricity between the arc-shaped inner side of the clamping member 6 and the inclined pile body 2, the initial contact is a line contact. The continuous thrust will be converted into a rotational torque around the hinge point, forcing the clamping member 6 to undergo a slight adaptive rotation, thus wedging tightly into the inclined pile surface like a wedge, forming a torque self-locking. This process rigidly connects the clamping member 6, the adjusting frame 4, and the inclined pile body 2 into a whole. After a reliable clamping is completed, the hydraulic cylinder 3 starts to move. When the inclination angle needs to be adjusted, the piston rod of the hydraulic cylinder 3 extends and retracts, and through the lifting plate 7 and the adjusting frame 4, the pushing force and contraction force are transmitted to the inclined pile body 2 through the locked clamping member 6, overcoming its gravity and soil resistance, causing it to rotate and the inclination angle to increase. The entire angle adjustment process is a precise fine-tuning based on the initial guidance of the steel casing 8. Before and after adjustment, the bottom part of the hole completed by the guide hammer 9 and the middle part of the hole controlled by this device are smoothly connected to form a complete inclined hole that meets the design requirements. Subsequently, the steel cage 11 with guide rib plate 14 and the guide tube 13 with guide device 12 can be smoothly lowered into this precisely formed inclined hole, effectively avoiding various interference problems and laying the foundation for subsequent high-quality underwater concrete pouring.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable-angle underwater concrete inclined pile limiting device, comprising a limiting frame (1) and an inclined pile body (2), characterized in that: A hydraulic cylinder (3) is fixedly installed on the bottom surface of the limiting frame (1). A lifting plate (7) is fixedly connected to the output end of the hydraulic cylinder (3). An adjusting frame (4) is hinged to the upper surface of the lifting plate (7). Electric push rods (5) are fixedly installed on both sides of the adjusting frame (4). A clamping member (6) for clamping the inclined pile body (2) is hinged to the output end of the electric push rod (5). The tilt angle of the inclined pile body (2) can be controlled by the extension and retraction of the hydraulic cylinder (3) and the drive of the electric push rod (5).

2. The adjustable-angle underwater concrete inclined pile limiting device according to claim 1, characterized in that, The clamping component (6) is a semi-arc plate.

3. The adjustable-angle underwater concrete inclined pile limiting device according to claim 2, characterized in that, The radius of curvature of the inner arc-shaped side surface of the clamping member (6) is greater than the radius of the inclined pile body (2).

4. The adjustable-angle underwater concrete inclined pile limiting device according to claim 3, characterized in that, The inner arc-shaped side of the clamping member (6) is in line contact with the circumferential side of the inclined pile body (2).

5. The adjustable-angle underwater concrete inclined pile limiting device according to claim 1, characterized in that, The inclined pile body (2) is fitted with a steel casing (8) on its periphery, and a steel cage (11) is installed inside it.

6. The adjustable-angle underwater concrete inclined pile limiting device according to claim 5, characterized in that, The inclined pile body (2) is also provided with a guide pipe (13), and a guide (12) is installed on the guide pipe (13).

7. The adjustable-angle underwater concrete inclined pile limiting device according to claim 1, characterized in that, A guide hammer (9) is provided at the bottom of the inclined pile body (2).

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