A portable channel lining freeze-thaw erosion depth nondestructive testing device

Abstract

A portable channel lining freeze-thaw erosion depth nondestructive testing device, including detection host, handheld probe and external data analysis terminal, the handheld probe is provided with a universal adjusting mechanism with a level indicator, the front end of the handheld probe is fixed with a horizontal base, a probe is extended below the horizontal base, the probe is matched with a depth measuring scale to complete depth reading collection; the detection host is built-in signal processing unit, data storage chip and voice broadcast module, the front panel of the detection host is provided with a liquid crystal digital display screen, the detection host can wirelessly transmit the detection data to the data analysis terminal. The contact type direct detection is realized, the quick leveling and stability of the measurement posture are ensured through the universal adjusting mechanism and the level indicator, the detection result is displayed in real time through the liquid crystal screen, the data can be stored and transmitted to the terminal analysis, the device is designed through the modularization and integrated with the intelligent function, the portability, operation efficiency and measurement accuracy of the water conservancy engineering site detection are significantly improved.

Description

Technical Field

[0001] This invention patent relates to a portable non-destructive testing device for the freeze-thaw erosion depth of channel linings, belonging to the field of hydraulic engineering structure testing technology. Background Technology

[0002] During long-term service in frigid regions, the lining structures of water conveyance channels commonly suffer from surface material deterioration and spalling due to freeze-thaw cycles. This not only significantly reduces the channel's water conveyance efficiency but also directly threatens the overall structural safety and service durability. Therefore, the inability to accurately and efficiently detect and assess the depth of freeze-thaw erosion will lead to a series of engineering problems: First, safety hazards will increase significantly. The eroded area may expand rapidly under the coupled effects of hydraulic erosion and continuous freeze-thaw cycles, inducing local structural instability and even causing overall collapse. Second, maintenance costs and efficiency will be affected. The lack of accurate damage depth and spatial distribution data makes maintenance plans lack a scientific basis, easily leading to a dilemma of "over-maintenance" or "under-maintenance," resulting in resource waste and reduced maintenance efficiency. Finally, management decisions will face significant risks. Inaccurate damage assessment data may lead to misjudgments of the channel's safety status or quantitative deviations in maintenance needs, thereby affecting the rational allocation of water resources, the formulation of safe operation plans, and the scientific and rational nature of maintenance investment decisions.

[0003] To address the challenge of accurately and efficiently measuring the depth of freeze-thaw erosion, three types of technical methods are commonly used in the field of canal lining freeze-thaw erosion depth detection: (1) Traditional mechanical probe contact measurement method: The probe is manually inserted into the eroded area to read the depth value, without a dedicated integrated detection device. This method has significant limitations: the operation process is complex, the single-point measurement efficiency is low, it is difficult to ensure the vertical posture of the probe during measurement, the measurement error is large, and the manual contact operation is also prone to causing secondary structural damage to the lining surface that has already suffered freeze-thaw damage, making it difficult to achieve large-scale field surveys; (2) Ultrasonic thickness measurement method: It relies on a coupling agent to achieve acoustic coupling between the ultrasonic probe and the lining surface. This method is significantly affected by environmental interference, the uniformity of the coupling agent is difficult to control, resulting in fluctuations in measurement accuracy, and the professional ultrasonic equipment is bulky and not portable enough in complex terrain conditions in the field. (3) Traditional laser scanning measurement method: Although it has the advantage of non-contact detection, it has defects such as high equipment purchase cost, complex data acquisition and post-processing process, and lack of real-time data processing capability, making it difficult to meet the needs of rapid and convenient detection in water conservancy projects. Summary of the Invention

[0004] To address the significant shortcomings of existing measurement methods in terms of efficiency, operability, cost control, and environmental adaptability, this invention patent provides a portable digital display contact-type detection device for the freeze-thaw erosion depth of channel linings. This device achieves accurate quantitative measurement of freeze-thaw erosion depth by integrating contact sensing technology, intelligent signal processing, and a real-time data feedback system.

[0005] In view of this, the present invention proposes a portable non-destructive testing device for the depth of freeze-thaw erosion of channel linings. It comprises three core modules: a detection host, a handheld probe, and an external data analysis terminal. The handheld probe's detection end is equipped with a universal adjustment mechanism with a built-in level indicator. A horizontal base is fixed to the front of the handheld probe, and a probe extends from below the horizontal base. The probe, in conjunction with a depth measurement scale, completes depth reading acquisition. The detection host incorporates a signal processing unit, a data storage chip, and a voice broadcast module. The front panel of the detection host is equipped with an LCD digital display screen, and the detection host can wirelessly transmit the detection data to the data analysis terminal. This invention patent, by organically combining contact probe detection, a horizontal attitude adjustment mechanism, and an integrated data processing unit, effectively solves the engineering pain points of efficient, accurate, and safe detection of freeze-thaw damage in channel linings in frigid regions, providing a reliable technical tool for the health monitoring and preventive maintenance of water conservancy engineering structures.

[0006] Preferably, the probe is a hard, wear-resistant metal probe or a non-metallic insulating ceramic probe.

[0007] Preferably, the universal adjustment mechanism is a ball joint or a three-axis adjustment mechanism.

[0008] Preferably, the level indicator is a bubble level or an electronic level.

[0009] Preferably, the detection host and the handheld probe are connected via a detachable cable or wirelessly.

[0010] Preferably, the detection host has a built-in wireless communication module for data transmission with the data analysis terminal.

[0011] Preferably, the signal processing unit includes a bandpass filter circuit for eliminating ambient noise and a high-precision analog-to-digital converter circuit of 16 bits or more for converting analog signals into digital signals.

[0012] Preferably, the data storage chip is a non-volatile memory that supports data retention even when power is off.

[0013] Preferably, the detection host also has a built-in battery module to provide power for the entire device.

[0014] Preferably, the voice broadcasting module includes a high-fidelity voice synthesis chip and a speaker, supporting multiple languages ​​and volume adjustment.

[0015] Compared with the prior art, the beneficial effects of this invention are: (1) The contact probe is used to directly measure the erosion depth. The structure is simple and reliable. Compared with traditional manual measurement, it is easier to ensure the accuracy of the probe measurement posture, which greatly improves the efficiency of large-scale on-site detection and avoids secondary damage to the damaged lining plate caused by improper manual operation; (2) Through the coordinated control of the universal adjustment mechanism and the level indicator, the probe can achieve rapid posture calibration and stable positioning under different working conditions, which significantly improves the repeatability and accuracy of the measurement data; (3) The real-time LCD digital display and voice broadcast dual feedback mechanism enable the operator to obtain the detection results and verify the validity of the data in an instant, which greatly shortens the on-site detection cycle; (4) The built-in signal processing unit and data storage chip realize the automated processing, local storage and optional wireless transmission of measurement data to the data analysis terminal, providing structured data support for engineering management. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the portable digital display contact detection device for freeze-thaw erosion depth of channel lining according to the present invention.

[0017] In the diagram: 1. Handheld probe; 2. Depth measurement scale; 3. Universal adjustment mechanism; 4. Level indicator; 5. Level base; 6. Probe; 7. Probe host; 8. LCD digital display screen; 9. Data storage chip; 10. Voice broadcast module; 11. Signal processing unit; 12. External data analysis terminal. Detailed Implementation

[0018] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the contents disclosed below.

[0020] The following combination Figure 1 The technical solution of the present invention will be further described below.

[0021] First embodiment, such as Figure 1 As shown: A portable non-destructive testing device for freeze-thaw erosion depth of channel lining, comprising: a detection host 7, a handheld probe 1, and an external data analysis terminal 12. The handheld probe 1 is connected to the detection host 7 via a signal transmission line. The external data analysis terminal 12 is an independent external intelligent terminal that establishes data interaction with the detection host 7 via wireless communication. The three together constitute a modular portable freeze-thaw erosion depth testing system.

[0022] In this invention, the handheld probe 1 includes a depth measuring scale 2, a universal adjustment mechanism 3, a level indicator 4, a level base 5, and a probe 6. The output end of the universal adjustment mechanism 3 is fixedly mounted on the level base 5. The level indicator 4 is fixedly positioned near the level base 5 to detect the horizontal attitude of the level base 5 in real time, enabling rapid leveling of the measurement attitude. The probe 6 is inserted through the level base 5 in a direction perpendicular to its own reference plane. The upper end of the probe 6 is connected to the depth measuring scale 2. The depth measuring scale 2 is integrated and mounted on the side of the universal adjustment mechanism 3 to collect the feed displacement of the probe 6, enabling direct contact detection of the freeze-thaw erosion depth.

[0023] In this invention, the detection host 7 includes an LCD digital display screen 8, a data storage chip 9, a voice broadcast module 10, and a signal processing unit 11. The LCD digital display screen 8 is embedded in the front panel of the detection host 7, and the data storage chip 9, the voice broadcast module 10, and the signal processing unit 11 are integrated into the housing of the detection host 7.

[0024] The external data analysis terminal 12 is a mobile smart terminal that establishes a communication connection with the signal processing unit 11 through a wireless communication module, receives and stores freeze-thaw erosion depth detection data in batches, and completes the quantitative statistics of the degree of freeze-thaw damage to the channel lining.

[0025] When using the portable channel lining freeze-thaw erosion depth detection device of the present invention, the floating slag and loose eroded aggregate in the area to be tested of the channel lining are cleaned in advance. The operator holds the handheld probe 1 and aligns the horizontal base 5 with the lining to be tested. The operator observes the display status of the horizontal indicator 4, loosens the locking structure of the universal adjustment mechanism 3 and adjusts the deflection angle of the horizontal base 5 until the horizontal indicator 4 displays a horizontal state. At this time, the probe 6 remains perpendicular to the surface of the lining to be tested. After locking the universal adjustment mechanism 3 to fix the measurement posture, the probe 6 is fed downward to the original base position of the lining after freeze-thaw erosion. The depth measurement scale 2 collects the feed displacement of the probe and transmits the displacement signal to the signal processing unit 11. The signal processing unit 11 calculates the freeze-thaw erosion depth of the detection point and displays the detection result in real time on the LCD digital display screen 8. The voice broadcast module 10 automatically broadcasts the detection value, and the detection data is automatically stored in the data storage chip 9. After completing the on-site detection of all detection points, the batch detection data can be transmitted to the external data analysis terminal 12 via wireless communication to carry out subsequent quantitative assessment of the degree of freeze-thaw erosion. The detection operation is then completed.

[0026] In this invention, preferably, the universal adjustment mechanism 3 is a ball-joint universal structure with a knob for locking, offering high degree of adjustment freedom and strong posture stability after locking, making it suitable for complex channel inspection scenarios in the field; the depth measurement scale 2 has a measurement accuracy of not less than 0.01mm, meeting the high-precision detection requirements for freeze-thaw erosion depth; the probe 6 is a detachable carbide probe, allowing for replacement of probes of different specifications according to the degree of erosion in the measured area, and can be quickly replaced after wear, effectively reducing device maintenance costs; the signal processing unit 11 has a built-in Bluetooth wireless communication module, which can be directly adapted to smart terminals such as mobile phones and tablets as an external data analysis terminal 12, eliminating the need for dedicated analysis equipment, reducing the overall cost and weight of the device, and improving portability; the bottom surface of the horizontal base 5 is machined with anti-slip texture, preventing posture slippage and displacement after leveling, further improving the stability of the detection process. The universal adjustment mechanism 3 is equipped with a locking knob, the probe 6 has a maximum feed range of 0-50mm, and the effective Bluetooth transmission distance is 10-15m.

[0027] The invention also discloses a detection method for a portable digital display contact detection device for the freeze-thaw erosion depth of channel linings, comprising the following steps:

[0028] (1) Preparation: Clean the channel lining area to be tested, remove surface scum and loose eroded aggregate, ensure that the horizontal base can be placed stably, and after the device is assembled, turn on the machine for self-test to confirm that the signal transmission and the working status of each module are normal.

[0029] (2) Leveling: The operator holds the handheld probe, aligns the horizontal base with the point to be tested, loosens the locking knob of the ball joint, observes the display status of the bubble indicator, adjusts the angle of the horizontal base, and after the bubble indicator reaches the horizontal state, locks the ball joint to fix the measurement posture. At this time, the probe remains perpendicular to the surface of the lining being tested.

[0030] (3) Depth detection: The hard wear-resistant metal probe is fed downward until the tip of the probe touches the substrate of the lining plate after freeze-thaw erosion. The depth measurement scale collects the feed displacement of the probe and transmits the displacement signal to the signal processing unit.

[0031] (4) Data processing and storage: The signal processing unit calculates the freeze-thaw erosion depth value of the current point, drives the LCD digital display screen to display the detection results in real time, controls the voice broadcast module to broadcast the detection values ​​on site, and automatically stores the group of detection data to the data storage chip.

[0032] (5) Data export and analysis: The batch detection data in the data storage chip is wirelessly transmitted to the external data analysis terminal via Bluetooth. The external data analysis terminal completes the statistical and quantitative evaluation of the freeze-thaw erosion depth, and the detection operation is completed.

[0033] Example 2, based on the above examples:

[0034] (1) Preparation: Clean the channel lining area to be tested, remove surface scum and loose eroded aggregate, ensure that the horizontal base can be placed stably, and after the device is assembled, turn on the machine for self-test to confirm that the signal transmission and the working status of each module are normal.

[0035] (2) Leveling: The operator holds the handheld probe, aligns the horizontal base with the point to be tested, loosens the locking knob of the three-axis adjustment mechanism, observes the display status of the electronic level and adjusts the angle of the horizontal base. After the bubble indicator reaches the horizontal state, the three-axis adjustment mechanism is locked to fix the measurement posture. At this time, the probe remains perpendicular to the surface of the lining being tested.

[0036] (3) Depth detection: The hard wear-resistant metal probe is fed downward until the tip of the probe touches the substrate of the lining plate after freeze-thaw erosion. The depth measurement scale collects the feed displacement of the probe and transmits the displacement signal to the signal processing unit.

[0037] (4) Data processing and storage: The signal processing unit calculates the freeze-thaw erosion depth value of the current point, drives the LCD digital display screen to display the detection results in real time, controls the voice broadcast module to broadcast the detection values ​​on site, and automatically stores the group of detection data to the data storage chip.

[0038] (5) Data export and analysis: The batch detection data in the data storage chip is wirelessly transmitted to the external data analysis terminal via Bluetooth. The external data analysis terminal completes the statistical and quantitative evaluation of the freeze-thaw erosion depth, and the detection operation is completed.

[0039] Example 3, based on the above examples:

[0040] (1) Preparation: Clean the channel lining area to be tested, remove surface scum and loose eroded aggregate, ensure that the horizontal base can be placed stably, and after the device is assembled, turn on the machine for self-test to confirm that the signal transmission and the working status of each module are normal.

[0041] (2) Leveling: The operator holds the handheld probe, aligns the horizontal base with the point to be tested, loosens the locking knob of the three-axis adjustment mechanism, observes the display status of the electronic level, adjusts the angle of the horizontal base, and after the electronic level reaches the horizontal state, locks the three-axis adjustment mechanism to fix the measurement posture. At this time, the probe remains perpendicular to the surface of the lining to be tested.

[0042] (3) Depth detection: The non-metallic insulating ceramic probe is fed downward until the tip of the probe touches the substrate of the lining plate after freeze-thaw erosion. The depth measurement scale collects the feed displacement of the probe and transmits the displacement signal to the signal processing unit.

[0043] (4) Data processing and storage: The signal processing unit calculates the freeze-thaw erosion depth value of the current point, drives the LCD digital display screen to display the detection results in real time, controls the voice broadcast module to broadcast the detection values ​​on site, and automatically stores the group of detection data to the data storage chip.

[0044] (5) Data export and analysis: The batch detection data in the data storage chip is wirelessly transmitted to the external data analysis terminal via Bluetooth. The external data analysis terminal completes the statistical and quantitative evaluation of the freeze-thaw erosion depth, and the detection operation is completed.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A portable non-destructive testing device for the freeze-thaw erosion depth of channel linings, characterized in that: The device comprises three core modules: a detection host, a handheld probe, and an external data analysis terminal. The handheld probe is equipped with a universal adjustment mechanism with a built-in level indicator and a locking knob. A horizontal base is fixed to the front of the handheld probe, and a probe extends from below the horizontal base. The probe, in conjunction with a depth measurement scale, completes the depth reading acquisition. The detection host has a built-in signal processing unit, a data storage chip, and a voice broadcast module. The front panel of the detection host is equipped with an LCD digital display screen, and the detection host can wirelessly transmit the detection data to the data analysis terminal.

2. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The probe is a hard, wear-resistant metal probe or a non-metallic insulating ceramic probe.

3. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The universal adjustment mechanism is a ball joint or a three-axis adjustment mechanism.

4. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The level indicator is a bubble level or an electronic level.

5. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The detection host and the handheld probe are connected via a detachable cable or wirelessly.

6. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The detection host has a built-in wireless communication module for data transmission with the data analysis terminal.

7. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The signal processing unit includes a bandpass filter circuit for eliminating ambient noise and a high-precision analog-to-digital converter circuit with 16 bits or more for converting analog signals into digital signals.

8. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The data storage chip is a non-volatile memory that supports data retention even when power is off.

9. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The detection host also has a built-in battery module to provide power for the entire device.

10. The portable non-destructive testing device for freeze-thaw erosion depth of channel lining according to claim 1, characterized in that: The aforementioned voice broadcast module includes a high-fidelity speech synthesis chip and a speaker, supporting multiple languages ​​and volume adjustment.

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