Ultrasonic device suitable for pile foundation integrity detection

Abstract

The ultrasonic device comprises a pile foundation sleeve, an ultrasonic transmitter, an ultrasonic receiver and a micro-processing center, a rotating shaft is arranged on the inner wall of the top of the pile foundation sleeve, the upper end of the rotating shaft is connected with a motor through a worm and gear transmission mechanism, and a horizontal rotating frame is arranged at the lower end of the rotating shaft; an upper belt transmission mechanism and a lower belt transmission mechanism are installed on the horizontal rotating frame, and the two stroke guide rails are fixedly installed on belts of the upper belt transmission mechanism and the lower belt transmission mechanism in parallel. Through the arrangement of the horizontal rotating frame, the relative position and angle of the ultrasonic transmitter and the ultrasonic receiver can be accurately controlled, and all-directional detection on the pile foundation is facilitated. The stroke guide rail is used in cooperation with the upper belt transmission mechanism and the lower belt transmission mechanism, so that the distance between the ultrasonic transmitter and the pile foundation and the distance between the ultrasonic receiver and the pile foundation can be flexibly adjusted, and the detection requirements of the pile foundations with different diameters and depths are met.

Description

Technical Field

[0001] This application relates to the technical field of pile foundation detection, and particularly to an ultrasonic device suitable for pile foundation integrity detection. Background Art

[0002] Pile foundations are often used in construction. After the pile foundation is built and its strength is fixed, it is necessary to detect the strength of the pile foundation to ensure its qualification and ability to support a building of sufficient weight. In the Chinese patent document with the publication number CN212964767U, a pile foundation integrity ultrasonic transmission detection device is disclosed, which includes a pile foundation sleeve, a travel guide rail, an electric travel slider, a detection ring frame, a detection ring groove, an electric slider, an ultrasonic transmitter, an ultrasonic receiver, and a microprocessing center. It can perform multi-directional detection of pile foundation integrity through ultrasonic transmission, with high detection accuracy and high automatic detection efficiency, which is beneficial to improving the quality control effect of construction projects. The defect of the above prior art is that it is not easy to adjust the distance between the ultrasonic transmitter, the ultrasonic receiver and the pile foundation, the travel is small, and the requirements for the electric telescopic arm are relatively high. Summary of the Utility Model

[0003] This application provides an ultrasonic device suitable for pile foundation integrity detection, which facilitates adjusting the distance between the ultrasonic transmitter, the ultrasonic receiver and the pile foundation.

[0004] The ultrasonic device suitable for pile foundation integrity detection provided by this application adopts the following technical solutions:

[0005] An ultrasonic device suitable for pile foundation integrity detection includes a pile foundation sleeve, an ultrasonic transmitter, an ultrasonic receiver, and a microprocessing center. The ultrasonic transmitter and the ultrasonic receiver are both electrically connected to the microprocessing center. On each of the left and right sides of the pile foundation sleeve, there is a vertically arranged travel guide rail. The ultrasonic transmitter and the ultrasonic receiver are installed on the two travel guide rails. On the inner wall of the top of the pile foundation sleeve, there is a rotating shaft. The upper end of the rotating shaft is connected to a motor through a worm and gear transmission mechanism. The motor is electrically connected to the microprocessing center. The lower end of the rotating shaft is provided with a horizontal rotating frame. An upper belt transmission mechanism and a lower belt transmission mechanism are installed on the horizontal rotating frame. On the belts of the upper belt transmission mechanism and the lower belt transmission mechanism, two travel guide rails are fixedly installed in parallel to simultaneously drive the two travel guide rails to move towards the middle or towards both sides.

[0006] Further improvement: A synchronous belt transmission mechanism is connected between the upper belt transmission mechanism and the lower belt transmission mechanism.

[0007] Further improvement: On both of the two travel guide rails, a detection frame is installed through an electric travel slider. The detection frame is used for fixedly installing the ultrasonic transmitter and the ultrasonic receiver.

[0008] Further improved, ultrasonic transmitters and ultrasonic receivers are installed on the belt of the lower belt drive mechanism.

[0009] In summary, the present application includes at least one of the following beneficial technical effects:

[0010] 1. Through the setting of the horizontal rotating frame, the relative position and angle of the ultrasonic transmitter and receiver can be accurately controlled, facilitating the all-round detection of pile foundations.

[0011] 2. The combined use of the travel guide rail, the upper belt drive mechanism, and the lower belt drive mechanism enables the distance between the ultrasonic transmitter and receiver and the pile foundation to be flexibly adjusted to meet the detection requirements of pile foundations with different diameters and depths. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of Embodiment 1.

[0013] Figure 2 is a schematic structural diagram of Embodiment 2.

[0014] Description of the reference numerals: 1, pile foundation sleeve; 2, ultrasonic transmitter; 3, ultrasonic receiver; 4, microprocessing center; 5, travel guide rail; 6, detection frame; 7, rotating shaft; 8, horizontal rotating frame; 9, upper belt drive mechanism; 10, lower belt drive mechanism; 11, synchronous belt drive mechanism; 12, electric travel slider. Detailed Description of the Embodiment

[0015] The following further describes the present application in detail Figure 1-2 in conjunction with the attached

[0016] Embodiment 1 of the present application discloses an ultrasonic device applicable to the integrity detection of pile foundations.

[0017] Refer to Figure 1, an ultrasonic device suitable for pile foundation integrity detection, comprising a pile foundation sleeve 1, an ultrasonic transmitter 2, an ultrasonic receiver 3 and a microprocessing center 4. The ultrasonic transmitter 2 and the ultrasonic receiver 3 are both electrically connected to the microprocessing center 4. On each side of the pile foundation sleeve 1, there is a vertically arranged travel guide rail 5. The ultrasonic transmitter 2 and the ultrasonic receiver 3 are installed on the two travel guide rails 5. On the inner wall of the top of the pile foundation sleeve 1, there is a rotating shaft 7. The upper end of the rotating shaft 7 is connected to a motor through a worm and gear transmission mechanism, and the motor is electrically connected to the microprocessing center 4. The lower end of the rotating shaft 7 is provided with a horizontal rotating frame 8. An upper belt transmission mechanism 9 and a lower belt transmission mechanism 10 are installed on the horizontal rotating frame 8. Two of the travel guide rails 5 are fixedly installed in parallel on the belts of the upper belt transmission mechanism 9 and the lower belt transmission mechanism 10 to simultaneously drive the two travel guide rails 5 to move towards the middle or towards both sides. The belt transmission mechanism is a mechanical transmission method that uses a flexible belt as a medium to transmit power and motion. The belt transmission mechanism usually consists of a driving wheel (active wheel), a driven wheel (passive wheel) and an endless belt connecting the two wheels. Power is transmitted from the driving wheel to the driven wheel through the belt, causing the driven wheel to rotate.

[0018] Working principle: First, install the ultrasonic transmitter 2 and the ultrasonic receiver 3 on the vertical travel guide rails 5 on the left and right sides of the pile foundation sleeve 1 respectively. The ultrasonic transmitter 2 and the ultrasonic receiver 3 can be arranged on different sides or on the same side. These two key components are responsible for transmitting and receiving ultrasonic waves to detect the integrity of the pile foundation. Ensure that the ultrasonic transmitter 2 and the ultrasonic receiver 3 are electrically connected to the microprocessing center 4 for signal transmission and processing. The microprocessing center 4 controls the start of the motor to drive the rotation of the rotating shaft 7. When the rotating shaft 7 rotates, the horizontal rotating frame 8 drives the travel guide rails 5 on both sides to rotate, controlling the relative position and angle of the ultrasonic transmitter and receiver, facilitating the all-round detection of the pile foundation. The upper belt transmission mechanism 9 and the lower belt transmission mechanism 10 will simultaneously drive the travel guide rails 5 to move towards the middle or towards both sides, enabling the distance between the ultrasonic transmitter and receiver and the pile foundation to be flexibly adjusted to meet the detection requirements of pile foundations with different diameters and depths. The synchronous movement of the travel guide rails 5 ensures that the distances between the ultrasonic transmitter 2 and the receiver 3 and the pile foundation are the same, improving the accuracy and reliability of the detection.

[0019] During the detection process, the ultrasonic transmitter 2 emits ultrasonic waves, which pass through the pile foundation material in the form of sound waves. When the ultrasonic waves encounter defects, cracks or interfaces of different media inside the pile foundation, reflection occurs, generating echoes, which are then received by the ultrasonic receiver 3. The microprocessing center analyzes the received signals and evaluates the integrity and quality of the pile foundation based on characteristics such as the propagation time, amplitude and frequency of the sound waves. Multi-directional detection of the pile foundation integrity is achieved through the principle of ultrasonic reflection or transmission. Defects in the pile foundation, such as cavities, cracks or material non-uniformity, will cause changes in the sound wave propagation path and abnormalities in the reflection signals, and these abnormal signals help to identify the defects of the pile foundation.

[0020] The entire detection process can be automatically controlled through the microprocessing center 4, improving the detection efficiency and operation convenience. The microprocessing center 4, as the brain of the system, is recommended to use an industrial-grade embedded computer as the microprocessing center 4, such as Advantech UNO series, Siemens SIMATIC IPC series, etc. The microprocessing center 4 integrates all components and sensors into a coordinated working unit. After detection, the microprocessing center 4 outputs a pile foundation integrity report according to the analysis results, providing data support for construction quality and safety.

[0021] Embodiment 2 is different from Embodiment 1 in that a synchronous belt drive mechanism 11 is connected between the upper belt drive mechanism 9 and the lower belt drive mechanism 10. The synchronous belt drive mechanism 11 is connected to a servo motor, and the servo motor is electrically connected to the microprocessing center 4. The synchronous belt drive mechanism 11 accurately transmits the motion generated by one servo motor to the upper and lower belt drive mechanisms, thereby realizing synchronous control of the travel guide rail 5. The servo motor can also be arranged on the upper belt drive mechanism 9 or the lower belt drive mechanism 10.

[0022] A detection frame 6 is installed on both of the two travel guide rails 5 through electric travel sliders 12. The detection frame 6 is used to fixedly install the ultrasonic transmitter 2 and the ultrasonic receiver 3. The travel guide rail 5 provides a guiding and supporting structure, enabling the detection frame 6 to move along the guide rail. The electric travel slider 12 allows the detection frame 6 to move flexibly along the travel guide rail 5 to adapt to the detection requirements at different positions. Automatic movement is achieved through electric drive, reducing the need for manual operation. The combination of the travel guide rail 5 and the electric travel slider 12 enables the detection frame 6 to adapt to pile foundations of different sizes and shapes.

[0023] The ultrasonic transmitter 2 and the ultrasonic receiver 3 are installed on the belt of the lower belt drive mechanism 10. The ultrasonic transmitter 2 and the ultrasonic receiver 3 can move horizontally while following the belt, realizing dynamic detection of the top of the pile foundation and providing more comprehensive detection data.

[0024] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. An ultrasonic device suitable for pile foundation integrity detection, comprising a pile foundation sleeve (1), an ultrasonic transmitter (2), an ultrasonic receiver (3) and a microprocessor hub (4), wherein the ultrasonic transmitter (2) and the ultrasonic receiver (3) are both electrically connected to the microprocessor hub (4), and a vertically arranged travel guide rail (5) is provided on each of the left and right sides of the pile foundation sleeve (1), and the ultrasonic transmitter (2) and the ultrasonic receiver (3) are installed on the two travel guide rails (5), characterized in that: A rotating shaft (7) is provided on the inner wall of the top of the pile foundation sleeve (1), the upper end of the rotating shaft (7) is connected to a motor through a worm gear transmission mechanism, the motor is electrically connected to the microprocessor hub (4), and a horizontal rotating frame (8) is provided at the lower end of the rotating shaft (7), an upper belt transmission mechanism (9) and a lower belt transmission mechanism (10) are installed on the horizontal rotating frame (8), and two travel guide rails (5) are fixedly installed in parallel on the belts of the upper belt transmission mechanism (9) and the lower belt transmission mechanism (10), so as to realize simultaneous driving of the two travel guide rails (5) to move toward the middle or to both sides.

2. An ultrasonic device suitable for pile foundation integrity detection according to claim 1, characterized in that: A synchronous belt transmission mechanism (11) is connected between the upper belt transmission mechanism (9) and the lower belt transmission mechanism (10).

3. The ultrasonic device for pile foundation integrity detection according to claim 1, characterized in that: A detection frame (6) is installed on each of the two travel guide rails (5) via an electric travel slider (12), and the detection frame (6) is used to fix an ultrasonic transmitter (2) and an ultrasonic receiver (3).

4. The ultrasonic device for pile foundation integrity detection according to claim 1, characterized in that: An ultrasonic transmitter (2) and an ultrasonic receiver (3) are installed on the belt of the lower belt transmission mechanism (10).

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