Building foundation pile body integrity detection device

Abstract

The utility model discloses a building foundation pile body integrity detection device, which belongs to the technical field of building construction and comprises a foundation pile body, and a detection assembly is arranged above the foundation pile body. The detection assembly comprises an outer diameter detection frame which is matched with and surrounds the periphery of the foundation pile body and longitudinally moves on the periphery of the foundation pile body and a lifting component used for driving the outer diameter detection frame to ascend and descend along the longitudinal axis of the foundation pile body, and the inner wall of the outer diameter detection frame is in sliding friction contact with the outer wall of the periphery of the foundation pile body. The outer diameter detection frame is arranged on the foundation pile body, so that the outer diameter detection frame slides and ascends and descends on the foundation pile body, a circle of inner cavity channel is formed in the outer diameter detection frame in the circumferential direction, at least four CCD detection cameras are symmetrically installed in the inner cavity channel in a rectangular distribution mode, and each CCD detection camera shoots one side face of the foundation pile body. The utility model provides a non-destructive detection method which can quickly and accurately judge whether the outer diameter of the foundation pile is qualified or not and whether cracks exist or not.

Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular to a device for detecting the integrity of building foundation piles. Background Technology

[0002] As a load-bearing component of a building, the integrity of foundation piles directly affects the stability and safety of the building. However, in actual construction and use, due to various reasons such as construction technology, material quality, and environmental factors, foundation piles may have problems such as deviations in outer diameter or surface cracks.

[0003] In modern construction engineering, ensuring the quality of foundation piles is crucial. Existing pile inspection methods have several shortcomings. Traditional methods, such as visual inspection and simple tool measurement, rely heavily on the experience and judgment of operators, lacking high-precision measuring tools and technical support. For example, when using tools like tape measures or calipers to measure the outer diameter of a pile, inaccurate results may occur due to factors such as line-of-sight, hand stability, and reading errors. If this lack of precision is not addressed, the outer diameter of the pile may not meet design requirements, leading to insufficient foundation bearing capacity and potentially serious structural safety issues. Utility Model Content

[0004] The purpose of this invention is to provide a device for detecting the integrity of building foundation piles, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pile body integrity detection device for building foundations, comprising a pile body, a detection assembly disposed above the pile body, the detection assembly comprising an outer diameter detection frame that fits around and moves longitudinally around the pile body, and a lifting component for driving the outer diameter detection frame to move up and down along the longitudinal axis of the pile body. The inner wall of the outer diameter detection frame slides and rubs against the outer wall of the pile body, causing the outer diameter detection frame to slide and move up and down on the pile body. When the outer diameter detection frame is stuck on the periphery of the pile body and cannot move up and down or when a gap appears between the inner wall of the outer diameter detection frame and the outer wall of the pile body, the outer diameter of the pile body is determined to be unqualified. An inner cavity is formed circumferentially inside the outer diameter detection frame, and at least four CCD detection cameras are symmetrically installed in a rectangular distribution in the inner cavity. Each CCD detection camera captures one side of the pile body, and the at least four CCD detection cameras are connected to an external monitoring display via cables to observe whether there are cracks on the periphery of the pile body.

[0006] In this preferred embodiment, the lifting component includes an electric lifting column vertically installed on the top surface of the foundation pile body and a support rod movably connected to the lifting top of the electric lifting column. The bottom surfaces of both ends of the support rod are connected to the top surfaces of two sides of the outer diameter detection frame by connecting rods.

[0007] In a preferred embodiment of this design, a first servo motor is fixed to the top lifting end of the electric lifting column, and the top output shaft of the first servo motor is fixedly connected to the support rod.

[0008] In this preferred embodiment, each connecting pole has a connecting plate welded to both ends. The connecting plate at the bottom of the connecting pole is connected to the outer diameter detection frame by bolts, and the connecting plate at the top of the connecting pole is connected to the support rod by bolts.

[0009] In this preferred embodiment, each of the CCD detection cameras is connected to the inner wall of the inner cavity via an electrically sliding component.

[0010] In a preferred embodiment, each of the electric sliding components includes a track seat mounted on each vertical inner wall of the inner cavity, a travel groove formed in the track seat, a slider support slidably connected in the travel groove, a screw rotatably mounted in the travel groove and threaded through the slider support, and a second servo motor embedded inside one end of the track seat.

[0011] In a preferred embodiment of this scheme, the CCD detection camera is mounted on the surface of the slider support, causing the second servo motor to drive the screw to rotate in the travel groove. The rotating screw drives the slider support to slide linearly in the travel groove through the thread, thereby causing the CCD detection camera to move linearly to detect the movement of the outer wall of the foundation pile body.

[0012] In a preferred embodiment, the bottom end of the electric lifting column is welded with a supporting base plate, and multiple extended supporting plates are welded in a circular array around the supporting base plate. The bottom surfaces of the extended supporting plates and the supporting base plate are flush and parallel to the top surface of the pile body.

[0013] In this preferred embodiment, a bubble level is provided on the top surface of each of the extended support plates.

[0014] In this preferred embodiment, a control panel is fixedly connected between two adjacent extension support plates, and the top surface of the control panel is provided with multiple control buttons.

[0015] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0016] This pile integrity testing device for building foundations features an outer diameter detection frame designed to fit snugly around and move longitudinally around the pile body. The frame detects the pile's outer diameter through sliding friction contact between its inner wall and the outer wall of the pile body. If the frame jams or gaps appear, it indicates that the outer diameter is substandard. At least four CCD cameras are installed within the inner cavity. These cameras capture images of different sides of the pile body and transmit the images via cables to an external monitoring display for observing cracks. The tight fit between the outer diameter detection frame and the pile body, along with the omnidirectional scanning of the pile surface by the CCD cameras, allows for precise capture of the pile's outer diameter and surface condition.

[0017] The entire inspection process does not require any physical cutting or damage to the foundation pile. The inspection task is completed through the sliding friction contact of the outer diameter inspection frame and the image acquisition of the CCD inspection camera, which avoids damage to the foundation pile caused by the inspection and maintains the integrity and structural strength of the foundation pile. It is especially suitable for foundation piles that have already been installed or are difficult to replace.

[0018] At least four CCD inspection cameras are installed in the inner cavity. These cameras take pictures of the side of the pile body from different angles and transmit the images to an external monitoring display via cables. This multi-angle, all-round inspection method ensures that there are no missed areas on the surface of the pile, improving the coverage and accuracy of the inspection. It is especially suitable for piles with complex shapes or irregular surfaces. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection structure between the outer diameter detection frame and the CCD detection camera of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection structure of the outer diameter detection frame of this utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the CCD inspection camera of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure of the supporting base plate of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] In the diagram: 1. Foundation pile body; 2. Testing assembly; 3. Outer diameter testing frame; 4. Electric lifting column; 5. First servo motor; 6. Support rod; 7. Connecting pole; 8. Cable; 9. Inner cavity; 10. CCD testing camera; 11. Connecting plate; 12. Track seat; 13. Slider support; 14. Stroke groove; 15. Second servo motor; 16. Screw; 17. Support base plate; 18. Extension support plate; 19. Bubble level; 20. Control panel. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0028] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0029] This embodiment provides, for example Figures 1 to 5 The device for detecting the integrity of a building foundation pile includes a foundation pile body 1. A detection assembly 2 is disposed above the foundation pile body 1. The detection assembly 2 includes an outer diameter detection frame 3 that fits around and moves longitudinally around the foundation pile body 1, and a lifting component for driving the outer diameter detection frame 3 to move up and down along the longitudinal axis of the foundation pile body 1. The inner wall of the outer diameter detection frame 3 slides and rubs against the outer wall of the foundation pile body 1, allowing the outer diameter detection frame 3 to slide and move up and down on the foundation pile body 1. If the outer diameter detection frame 3 gets stuck around the foundation pile body 1 and cannot move up or down or if there is a gap between the inner wall of the outer diameter detection frame 3 and the outer wall of the foundation pile body 1, the outer diameter of the foundation pile body 1 is determined to be unqualified. An inner cavity 9 is opened around the outer diameter detection frame 3 in the circumferential direction. At least four CCD detection cameras 10 are symmetrically installed in a rectangular distribution in the inner cavity 9. Each CCD detection camera 10 captures one side of the foundation pile body 1. The at least four CCD detection cameras 10 are connected to an external monitoring display via cables 8 to observe whether there are cracks around the foundation pile body 1.

[0030] In this embodiment, the lifting component includes an electric lifting column 4 vertically mounted on the top surface of the pile body 1 and a support rod 6 movably connected to the lifting top of the electric lifting column 4. Connecting rods 7 are connected between the bottom surfaces of both ends of the support rod 6 and the top surfaces of two sides of the outer diameter detection frame 3. The electric lifting column 4, vertically mounted on the top surface of the pile body 1, moves up and down using a motor, causing the support rod 6 and the outer diameter detection frame 3 to move axially along the pile body 1. The design of the support rod 6 and connecting rods 7 ensures that the outer diameter detection frame 3 stably conforms to the pile body 1 during lifting, avoiding misjudgments caused by vibration or shaking. This design not only provides a stable and reliable lifting mechanism, ensuring the smoothness of the detection process, but also allows the equipment to adapt to piles of different sizes, enhancing the system's versatility and flexibility.

[0031] In this embodiment, a first servo motor 5 is fixed to the lifting top of the electric lifting column 4, and the top output shaft of the first servo motor 5 is fixedly connected to the support rod 6. When the pile body 1 to be inspected is rectangular, the outer diameter inspection frame 3 does not need to rotate. However, when the pile to be inspected is cylindrical, the outer diameter inspection frame 3 should be disassembled and replaced with a ring-shaped structure. This allows the first servo motor 5 to drive the support rod 6 and the connecting rod 7, thereby rotating the ring-shaped inspection frame around the cylindrical pile. This adds circumferential rotation inspection to the lifting inspection, improving inspection efficiency and effectiveness. The addition of circumferential rotation inspection to the lifting inspection improves inspection efficiency and effectiveness, ensuring a comprehensive and thorough inspection of the pile surface. Therefore, this design not only improves the accuracy and reliability of the inspection but also significantly increases the inspection speed and efficiency, making it particularly suitable for the inspection needs of piles with complex shapes.

[0032] In this embodiment, each connecting pole 7 has a connecting plate 11 welded to both ends. The connecting plate 11 at the bottom of the connecting pole 7 is connected to the outer diameter detection frame 3 by bolts, and the connecting plate 11 at the top of the connecting pole 7 is connected to the supporting top rod 6 by bolts. This allows the spacing between the two connecting poles 7 to be adjusted according to the size of the outer diameter detection frame 3, thus making it suitable for use with foundation pile bodies 1 and outer diameter detection frames 3 of different sizes.

[0033] In this embodiment, each CCD detection camera 10 is connected to the inner wall of the inner cavity 9 via an electric sliding component.

[0034] In this embodiment, each electrically driven sliding component includes a track seat 12 mounted on each vertical inner wall of the inner cavity 9, a travel groove 14 formed in the track seat 12, a slider support 13 slidably connected in the travel groove 14, a screw 16 rotatably mounted in the travel groove 14 and threaded through the slider support 13, and a second servo motor 15 embedded inside one end of the track seat 12. The second servo motor 15 drives the screw 16 to rotate in the travel groove 14, and drives the slider support 13 to slide linearly through the thread, thereby moving the CCD detection camera 10 along the vertical direction. This design not only ensures that the CCD detection camera 10 can be accurately positioned to the required location, but also ensures the continuity and stability of the image acquisition process, improves the efficiency and accuracy of detection, and provides high-quality image data for subsequent data analysis.

[0035] In this embodiment, the CCD detection camera 10 is mounted on the surface of the slider support 13, so that the second servo motor 15 drives the screw 16 to rotate in the stroke groove 14. The rotating screw 16 drives the slider support 13 to slide linearly in the stroke groove 14 through the thread, thereby driving the CCD detection camera 10 to move linearly to detect the movement of the outer wall of the pile body 1.

[0036] In this embodiment, a supporting base plate 17 is welded to the bottom end of the electric lifting column 4. Multiple extended supporting plates 18 are welded in a circular array around the supporting base plate 17. The bottom surfaces of the extended supporting plates 18 and the supporting base plate 17 are flush and parallel to the top surface of the pile body 1. The design of the supporting base plate 17 and the extended supporting plates 18 not only improves the stability of the electric lifting column 4, but also, the outward extension of the extended supporting plates 18 increases the stability of the supporting base plate 17, preventing the electric lifting column 4 from tipping over.

[0037] In this embodiment, a bubble level 19 is provided on the top surface of each extended support plate 18. The design of each bubble level 19 can reflect whether the position of each extended support plate 18 is horizontal.

[0038] In this embodiment, a control panel 20 is fixedly connected between two adjacent extended support plates 18. The top surface of the control panel 20 is equipped with multiple control buttons. The control panel 20 also houses a PLC for controlling the opening and closing of the electric lifting column 4, the first servo motor 5, and the second servo motor 15. The CCD detection camera 10 is controlled by an external power source. Both the first servo motor 5 and the second servo motor 15 have independent batteries.

[0039] Working principle:

[0040] The pile integrity testing device for building foundations uses a suitable outer diameter testing frame 3, selected based on the shape of the pile (rectangular or cylindrical). For cylindrical piles, the outer diameter testing frame 3 must be a ring-shaped structure. A supporting base plate 17 is placed on top of the pile body 1, and an extension support plate 18 is used to increase stability. A bubble level 19 is used to check the device's levelness. The electric lifting column 4 is then activated, allowing the outer diameter testing frame 3 to slowly descend along the pile body 1. During this process, the outer diameter testing frame 3 maintains close contact with the outer perimeter of the pile body 1. If the outer diameter testing frame 3 encounters resistance and cannot continue descending, or if a gap appears between it and the pile, it indicates that the outer diameter of the pile is unqualified.

[0041] At least four CCD detection cameras 10 are installed in the inner cavity 9 inside the outer diameter detection frame 3. These cameras are connected to an external monitoring display via cables 8. The second servo motor 15 drives the screw 16, causing the slider support 13 to move along the travel groove 14, which in turn drives the CCD detection cameras 10 to scan the surface of the foundation pile in the vertical direction, capture images in real time, and transmit them to the monitoring display to check for cracks.

[0042] When inspecting cylindrical foundation piles, the first servo motor 5 drives the support rod 6 and connecting rod 7, causing the outer diameter inspection frame 3 to rotate around the foundation pile. This step provides a more comprehensive inspection perspective, improving inspection results and efficiency. All collected data, including outer diameter information and crack images, are automatically recorded for subsequent analysis. After the inspection is completed, all equipment power is turned off, and the integrity of the foundation pile is assessed based on the inspection results.

[0043] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the integrity of the body of a building pile, comprising a pile body (1), characterized in that: The upper part of the pile body (1) is provided with a detection assembly (2), which comprises an outer diameter detection frame (3) surrounding and longitudinally moving on the periphery of the pile body (1), and a lifting component for driving the outer diameter detection frame (3) to lift along the longitudinal axis of the pile body (1). The inner wall of the outer diameter detection frame (3) is in sliding frictional contact with the peripheral outer wall of the pile body (1). If the outer diameter detection frame (3) is stuck on the periphery of the pile body (1) and cannot lift and slide, or if a gap appears between the inner wall of the outer diameter detection frame (3) and the peripheral outer wall of the pile body (1), it is determined that the outer diameter of the pile body (1) is unqualified. A circular inner cavity (9) is formed in the periphery of the outer diameter detection frame (3). At least four CCD detection cameras (10) are symmetrically installed in the inner cavity (9) in a rectangular distribution. Each CCD detection camera (10) captures an image of one side of the pile body (1). The at least four CCD detection cameras (10) are connected to an external monitoring display through a cable (8) to observe whether there is a crack on the periphery of the pile body (1).

2. The device for detecting the integrity of a pile body of a building pile according to claim 1, characterized in that: The lifting component comprises an electric lifting column (4) vertically arranged on the top surface of the pile body (1), and a supporting top rod (6) movably connected to the lifting top end of the electric lifting column (4). The two ends of the supporting top rod (6) are connected with two side top surfaces of the outer diameter detection frame (3) through connecting vertical rods (7).

3. The device for detecting the integrity of a pile body of a building pile according to claim 2, characterized in that: The lifting top end of the electric lifting column (4) is fixedly connected with a first servo motor (5). The top output shaft of the first servo motor (5) is fixedly connected with the supporting top rod (6).

4. The device for detecting the integrity of a pile shaft of a building pile according to claim 3, characterized in that: The two ends of each connecting vertical rod (7) are welded with connecting plates (11). The connecting plate (11) at the bottom end of the connecting vertical rod (7) is connected with the outer diameter detection frame (3) through bolts. The connecting plate (11) at the top end of the connecting vertical rod (7) is connected with the supporting top rod (6) through bolts.

5. The device for detecting the integrity of a pile shaft of a building pile according to claim 4, characterized in that: Each CCD detection camera (10) is connected with the inner wall of the inner cavity (9) through an electric sliding component in the inner cavity (9).

6. The device for detecting the integrity of a pile shaft of a building pile according to claim 5, characterized in that: Each electric sliding component comprises a track seat (12) arranged on each vertical inner wall of the inner cavity (9), a stroke sliding groove (14) formed in the track seat (12), a sliding block support (13) slidingly connected in the stroke sliding groove (14), a screw rod (16) rotatably arranged in the stroke sliding groove (14) and screwing through the sliding block support (13), and a second servo motor (15) embedded in one end of the track seat (12).

7. The device for detecting the integrity of a pile shaft of a building pile according to claim 6, characterized in that: The CCD detection camera (10) is arranged on the surface of the sliding block support (13). The second servo motor (15) drives the screw rod (16) to rotate in the stroke sliding groove (14). The screw rod (16) in the rotating state drives the sliding block support (13) to linearly slide in the stroke sliding groove (14), and drives the CCD detection camera (10) to linearly move to detect the movement of the outer wall of the pile body (1).

8. The device for detecting the integrity of a pile shaft of a building pile according to claim 7, characterized in that: The bottom end of the electric lifting column (4) is welded with a support bottom plate (17), and a plurality of extension support plates (18) are welded in a circumferential annular array on the side of the support bottom plate (17), the bottom surface of the extension support plate (18) is flush with the bottom surface of the support bottom plate (17), and the top surface of the support bottom plate (17) is parallel to the top surface of the pile body (1).

9. The device for detecting the integrity of a pile shaft of a building pile according to claim 8, characterized in that: The top surface of each extension support plate (18) is provided with a bubble level (19).

10. The device for detecting the integrity of a pile shaft of a building pile according to claim 9, characterized in that: Two adjacent extension support plates (18) are fixedly connected with a control panel (20), and the top surface of the control panel (20) is provided with a plurality of control buttons.

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