Detection device for engineering construction

Abstract

The invention discloses a detection device for engineering construction, and relates to the field of engineering detection, and the detection device comprises a fixed support, an excavation assembly, a lifting assembly, a detection assembly and an airflow impact assembly. The fixing support is stabilized on the ground through anchoring parts. The digging assembly is provided with two symmetrically-arranged buckets, is controlled by the driving mechanism and the transverse adjusting mechanism and is used for automatically stripping soil on the two sides and below the pipeline to form a detection pit. The lifting assembly drives the detection assembly to descend into a pit, a flexible sealing piece is arranged on the outer side of a detection probe, and a sealed space can be formed when the detection probe makes contact with a pipeline. The airflow impact assembly is provided with air injection parts pointing to the interior of the sealed space and the cutting edge of the bucket correspondingly and used for cleaning the working face. According to the device, three independent procedures of fixed-point excavation, area cleaning and contact type detection are integrated into single equipment and are sequentially and automatically completed through mechanical transmission. Therefore, personnel are prevented from entering a narrow tunnel to carry out high-risk excavation and detection operation, and the safety risk is remarkably reduced.

Description

Technical Field

[0001] This invention belongs to the field of engineering construction technology, and in particular relates to a detection device for engineering construction. Background Technology

[0002] In engineering construction and maintenance in municipal, petrochemical, and gas industries, it is often necessary to inspect the corrosion, wall thickness, or welding quality of specific pipeline locations without excavating the entire pipeline. Currently, the common practice is to manually excavate exploratory pits using tools such as shovels and pneumatic picks to partially expose the pipeline, and then inspection personnel go down into the pits to manually inspect the pipeline using equipment such as ultrasonic thickness gauges.

[0003] This method has many drawbacks: First, manual excavation is inefficient and labor-intensive, and improper pit wall support can easily lead to safety accidents; second, the environment inside the pit is harsh, and mud and water can easily contaminate the probe or coupling surface of the testing instrument, leading to measurement errors or even equipment failure; third, manual holding of the testing probe is unstable, especially when measuring the bottom of the pipe, it is difficult to apply force and maintain constant coupling, resulting in poor data repeatability; finally, the entire process involves multiple pieces of equipment and multiple procedures, making collaborative work difficult and unable to achieve rapid and standardized fixed-point testing.

[0004] Therefore, the present invention designs a detection device for engineering construction. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art and to propose a detection device for engineering construction.

[0006] A detection device for engineering construction, comprising: A fixed support includes a top plate and multiple legs, each of which has an anchor at its bottom; The excavation assembly includes two symmetrically arranged buckets, a drive mechanism for driving the buckets to perform digging and lifting actions, and a lateral adjustment mechanism for driving the two buckets to move laterally synchronously or asynchronously. The lifting assembly is vertically positioned in the middle of the top plate; A detection component, connected to the output end of the lifting component and located between the two buckets; and Airflow impact components; The excavation assembly is used to excavate on both sides of the underground pipeline and remove soil from the bottom and sides of the pipeline to form an inspection pit; the lifting assembly is used to lower the detection assembly into the inspection pit; and the airflow impact assembly is used to clean the surface of the underground pipeline to be inspected and the detection assembly. In the above device, the drive mechanism includes at least two sets of adjusting cylinders. One end of each set of adjusting cylinders is connected to the lateral adjusting mechanism, and the other end is hinged to the bucket. The digging posture or vertical position of the bucket is adjusted by extending or retracting at least two of the adjusting cylinders.

[0007] In the above device, the lifting assembly includes a connecting cylinder fixed to the top plate, a worktable fixed to the bottom of the connecting cylinder, and a driving component disposed at the top of the connecting cylinder. The output end of the driving component passes through the connecting cylinder and is connected to the detection assembly.

[0008] In the above-mentioned device, the lateral adjustment mechanism includes a mounting platform and a linear module. The mounting platform is disposed outside the connecting cylinder, and the linear module is disposed on the mounting platform. A slider is disposed on the linear module. In the driving mechanism, multiple adjustment cylinders located on one side are fixed on a slider and their free ends pass through the slider.

[0009] In the above-mentioned device, a long groove is provided on the mounting platform, the slider is slidably disposed in the long groove, and the linear module is disposed on the side of the long groove.

[0010] In the above-mentioned device, the detection component includes a detection probe and a flexible seal. The flexible seal is arranged around the detection probe and has an opening at its bottom for the detection probe to extend out. The flexible seal is configured to deform outward and form a sealed space when in contact with the surface of the underground pipeline.

[0011] In the above-described device, the airflow impact component includes a first jet section, which is disposed on the flexible seal and points towards the interior of the sealed space and below the detection probe.

[0012] In the above-mentioned device, the airflow impact component further includes a second jet section, which is disposed at the digging edge of the bucket.

[0013] In the above-described device, the airflow impact assembly further includes an air pump and an air supply line, wherein the air pump is connected to both the first jet section and the second jet section through the air supply line.

[0014] In the above-described device, the airflow impact assembly further includes an air pump and an air supply line, wherein the air pump is connected to both the first jet section and the second jet section through the air supply line.

[0015] The beneficial effects of this invention are as follows: 1. The three independent processes of fixed-point excavation, area cleaning, and contact testing are integrated into a single device and completed automatically in sequence via mechanical transmission. This avoids personnel entering narrow tunnels for high-risk excavation and testing operations, significantly reducing safety risks. Simultaneously, mechanized continuous operation replaces traditional manual alternating operations, shortening the overall operation time for a single testing point.

[0016] 2. The device provides a stable reference through rigid anchoring and systematically solves the problem of soil and water contamination of the detection probe within the pit by utilizing directional airflow cleaning and a flexible contact sealing structure. This design creates and maintains a clean and stable contact interface for the high-precision sensor, effectively eliminating data errors caused by media interference or unstable contact, and ensuring the accuracy and repeatability of the measurement results.

[0017] 3. Employing a symmetrically and independently controlled multi-degree-of-freedom bucket, it can adapt to different pipe diameters and complex soil conditions, achieving precise and controllable excavation and avoiding damage to the pipe body caused by rough construction. The integrated air circuit design simultaneously serves excavation anti-sticking and pre-inspection cleaning, demonstrating functional synergy. The entire device has a robust structure and clear operating logic, reducing reliance on individual operator experience and improving operational reliability under various field conditions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a detection device for engineering construction disclosed in this invention.

[0019] Figure 2 This is a schematic diagram of the lifting component in an engineering construction detection device disclosed in this invention.

[0020] Figure 3 This is a schematic diagram of the structure of the detection component in an engineering construction detection device disclosed in this invention.

[0021] Figure 4 This is a schematic diagram of the airflow impact component in an engineering construction detection device disclosed in this invention.

[0022] Figure 5 This is a schematic diagram of the excavation component in an engineering construction detection device disclosed in this invention.

[0023] Figure 6 This is a schematic diagram of the lateral adjustment mechanism in an engineering construction detection device disclosed in this invention.

[0024] In the picture: 1. Fixed bracket; 11. Top plate; 12. Support legs; 13. Anchors; 2 Excavation components, 21 Bucket, 22 Drive mechanism, 221 Adjustment cylinder, 23 Lateral adjustment mechanism, 231 Mounting platform, 232 Linear module, 233 Slider, 234 Long slot; 3 Lifting assembly, 31 Connecting cylinder, 32 Worktable, 33 Drive component, 34 Rib plate, 35 Mounting bracket; 4. Detection components, 41. Detection probe, 42. Flexible seal; 5. Airflow impact assembly, 51. First jet section, 52. Second jet section, 53. Air supply pipeline. Detailed Implementation

[0025] To facilitate understanding of this application and to make the aforementioned objectives, features, and advantages of this application more apparent, a detailed description of specific embodiments of this application is provided below in conjunction with the accompanying drawings. Numerous specific details are set forth in the following description to provide a thorough understanding of this application, and preferred embodiments are shown in the accompanying drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. This application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. In the description of this application, "several" means at least one, such as one, two, etc., unless otherwise explicitly specified. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is only for describing particular implementations and is not intended to limit the scope of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Reference Figures 1-6 A detection device for engineering construction, comprising: The fixed support 1 includes a top plate 11 and multiple legs 12, each leg 12 having an anchor 13 at its bottom. The detection device is mounted on both sides of the underground pipeline using the anchors 13 and reinforced to the ground to ensure overall stability during subsequent excavation and inspection. The multiple legs 12 are designed as telescopic structures, allowing for flexible length adjustments to suit different terrain conditions and enhancing adaptability to uneven ground. Furthermore, the legs 12 are rotatably connected to the top plate 11, facilitating multi-angle adjustments to their orientation. In actual operation, the anchors 13 are screwed into the ground to secure the entire device firmly, effectively preventing shaking during mechanical operation.

[0027] The excavation component 2 includes two symmetrically arranged buckets 21, a drive mechanism 22 for driving the buckets 21 to perform excavation and lifting actions, and a lateral adjustment mechanism 23 for driving the two buckets 21 to move synchronously or asynchronously laterally. The two buckets 21 are symmetrically arranged around the underground pipeline as the central axis, and can excavate on both sides of the pipeline respectively, stripping the soil from the bottom and sides of the pipeline, and finally forming a regular inspection pit suitable for accurately detecting various parameters of the pipeline.

[0028] The lifting assembly 3 is vertically installed in the middle of the top plate 11. It is used to control the descent and elevation of the detection assembly 4, so that it can accurately enter the detection pit and directly act on the surface of the underground pipeline to complete the detection operation.

[0029] The detection component 4 is connected to the output end of the lifting component 3 and is located in the space between the two buckets 21. This component can select one or more integrated sensor modules according to the needs of the specific detection task, including but not limited to ultrasonic thickness measurement, eddy current detection, electrochemical detection and temperature sensing modules.

[0030] The airflow impact component 5 is used to clean the surface of the underground pipeline to be inspected and the detection component 4 itself, so as to ensure that the detection environment is dust-free and free from interference from impurities, thereby improving the accuracy of the detection data.

[0031] In one feasible embodiment, the drive mechanism 22 includes at least two sets of adjusting cylinders 221. One end of each adjusting cylinder 221 is connected to the lateral adjusting mechanism 23, and the other end is hinged to the bucket 21. By controlling the extension and retraction movement of the adjusting cylinders 221, the digging posture of the bucket 21 and its position in the vertical direction can be precisely adjusted.

[0032] In one feasible embodiment, the lifting assembly 3 includes a connecting cylinder 31 fixed on the top plate 11, a worktable 32 installed at the bottom of the connecting cylinder 31, and a driving component 33 disposed on the top of the connecting cylinder 31. The fixed end of the driving component 33 is fixed on the top plate 11 by a mounting bracket 35, and the output end of the driving component 33 passes through the connecting cylinder 31 and is connected to the detection assembly 4 to achieve its smooth lifting.

[0033] In one feasible embodiment, the lateral adjustment mechanism 23 includes a mounting platform 231 and a linear module 232. The mounting platform 231 is located on the outside of the connecting cylinder 31, and the linear module 232 is mounted on the mounting platform 231, with a slider 233 mounted on the module. Multiple adjusting cylinders 221 on the same side of the drive mechanism 22 are fixed to a slider 233, with the free end of their piston rods passing through the slider 233. An elongated groove 234 is formed on the mounting platform 231, and the slider 233 is embedded in the groove and can slide along it. The linear module 232 is arranged on one side of the groove 234 to drive the slider's movement. Each bucket 21 is hinged to the upper slider 233 via two adjusting cylinders 221. By controlling the extension and retraction of the two adjusting cylinders 221 respectively, the digging angle of the bucket can be precisely adjusted. The mounting platform 231 is securely connected to the connecting cylinder 31 of the lifting assembly 3 via the stiffening plate 34. During operation, the linear module 232 drives the slider 233 to move the bucket 21 laterally, cutting into the soil on both sides of the pipe. Subsequently, the adjusting cylinder 221 performs digging and lifting actions. The two buckets 21 can be controlled independently to achieve coordinated or asynchronous excavation operations.

[0034] In one feasible embodiment, the detection component 4 includes a detection probe 41 and a flexible seal 42. The detection probe 41 may be selected from one or more combinations of the following types, depending on the detection principle: Ultrasonic thickness measurement probes are used to accurately measure pipe wall thickness and assess corrosion status. They often use dual-crystal or single-crystal straight probes with frequencies between 5MHz and 10MHz, and are suitable for common pipe materials such as carbon steel and stainless steel. Eddy current testing probes are used to quickly scan pipe surface and near-surface defects (such as cracks and pitting corrosion), and also have a certain detection capability for defects under coatings. They are often used as a supplement to ultrasonic testing. Potential / electrochemical detection probes are used to measure the pipeline's potential to ground or instantaneous power failure potential, assisting in the assessment of the cathodic protection system's status and corrosion activity; Temperature sensors monitor the surface temperature of pipes and are suitable for specific working conditions such as thermal pipelines.

[0035] A flexible seal 42 surrounds the detection probe 41, with an opening at its bottom for the probe to extend out. When the flexible seal 42 comes into contact with the pipe surface, it deforms outward and forms a sealed space, keeping the detection probe 41 in a clean and sealed environment, effectively preventing dust from interfering with the detection.

[0036] In one feasible embodiment, the airflow impact assembly 5 includes a first jet 51 disposed on the flexible seal 42, pointing towards the interior of the sealed space and the area below the detection probe 41, respectively. The airflow pointing towards the interior of the sealed space is used to clean the detection probe 41 and prevent interference from solid impurities; the airflow pointing towards the area below the probe is used to remove deposits on the upper surface of the pipe, ensuring smooth downward detection by the probe.

[0037] In one feasible embodiment, the airflow impact assembly 5 further includes a second jet 52, which is installed at the digging edge of the bucket 21. As the bucket 21 moves, the second jet 52 can flush the sides of the pipe with airflow, reducing soil adhesion and further improving the detection effect of the detection probe 41. The system is also equipped with an air pump and an air supply line 53, which provides positive pressure airflow to both the first jet 51 and the second jet 52 simultaneously through the air supply line 53.

[0038] In one feasible embodiment, the inner wall shape of the bucket 21 is designed according to the outer wall contour of the pipe, so that it fits the outer diameter of the pipe better during the excavation process, thereby improving excavation efficiency and soil stripping effect.

[0039] The working process of this invention is as follows: S1: Positioning and Anchoring: Move the device to the detection point, adjust the multiple legs 12 to keep the device horizontal and place it directly above the underground water pipe, and then screw in the anchor 13 to firmly fix the device to the ground.

[0040] S2: Automatic Excavation: The excavation component 2 is activated, and the linear module 232 drives the two buckets 21 to move towards each other and approach the pipeline. The adjusting cylinder 221 controls the buckets to complete the cycle of digging, turning over, and lifting. During the process, the second jet unit 52 sprays air to assist in breaking the soil and prevent soil adhesion until a section of the bottom and side of the pipeline is completely stripped away, forming an inspection pit.

[0041] S3: Cleaning and Inspection: After excavation, the bucket 21 is reset and moved away, and the detection component 4 is lowered via the lifting assembly 3. Before the probe contacts the pipe surface, the first jet 51 sprays high-pressure gas to remove impurities from the top surface of the pipe. Subsequently, the flexible seal 42 contacts the pipe wall and forms a sealed cavity, allowing the detection probe 41 to couple with the pipe wall in a dust-free environment for high-precision measurement.

[0042] S4: Reset and Transfer: After the test is completed, the lifting assembly 3 will lift the detection assembly 4 back to the initial position, release the anchor, and move the device to the next detection point to continue the operation.

[0043] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative and not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A detection device for engineering construction, characterized in that, include: The fixed bracket (1) includes a top plate (11) and a plurality of legs (12), and each of the legs (12) is provided with an anchor (13) at its bottom. The excavation assembly (2) includes two symmetrically arranged buckets (21), a drive mechanism (22) for driving the buckets (21) to perform excavation and lifting actions, and a lateral adjustment mechanism (23) for driving the two buckets (21) to move laterally synchronously or asynchronously. The lifting assembly (3) is vertically disposed in the middle of the top plate (11); The detection component (4) is connected to the output end of the lifting component (3) and is located between the two buckets (21); and Airflow impact component (5); The excavation component (2) is used to excavate on both sides of the underground pipeline and strip the soil from the bottom and sides of the pipeline to form a detection pit; the lifting component (3) is used to lower the detection component (4) into the detection pit; and the airflow impact component (5) is used to clean the surface of the underground pipeline to be inspected and the detection component (4).

2. The detection device for engineering construction according to claim 1, characterized in that, The drive mechanism (22) includes at least two sets of adjustment cylinders (221). One end of each set of adjustment cylinders (221) is connected to the lateral adjustment mechanism (23), and the other end is hinged to the bucket (21). The digging posture or vertical position of the bucket (21) is adjusted by the extension and retraction of at least two of the adjustment cylinders (221).

3. The detection device for engineering construction according to claim 1, characterized in that, The lifting assembly (3) includes a connecting cylinder (31) fixed to the top plate (11), a worktable (32) fixed to the bottom of the connecting cylinder (31), and a driving component (33) disposed on the top of the connecting cylinder (31). The output end of the driving component (33) passes through the connecting cylinder (31) and is connected to the detection assembly (4).

4. The detection device for engineering construction according to claim 3, characterized in that, The lateral adjustment mechanism (23) includes a mounting platform (231) and a linear module (232). The mounting platform (231) is located outside the connecting cylinder (31). The linear module (232) is located on the mounting platform (231). A slider (233) is provided on the linear module (232). Multiple adjustment cylinders (221) located on one side of the drive mechanism (22) are fixed on a slider (233) and their free ends pass through the slider (233).

5. The detection device for engineering construction according to claim 4, characterized in that, The mounting platform (231) has a long groove (234), the slider (233) is slidably disposed in the long groove (234), and the linear module (232) is disposed on the side of the long groove (234).

6. The detection device for engineering construction according to claim 1, characterized in that, The detection assembly (4) includes a detection probe (41) and a flexible seal (42), the flexible seal (42) being arranged around the detection probe (41) and having an opening at its bottom for the detection probe (41) to extend out. The flexible seal (42) is configured to deform outward and form a sealed space when in contact with the surface of the underground pipe.

7. The detection device for engineering construction according to claim 6, characterized in that, The airflow impact component (5) includes a first jet section (51), which is disposed on the flexible seal (42) and points inside the sealed space and below the detection probe (41).

8. The detection device for engineering construction according to claim 7, characterized in that, The airflow impact component (5) also includes a second jet (52), which is disposed at the digging edge of the bucket (21).

9. The detection device for engineering construction according to claim 8, characterized in that, The airflow impact assembly (5) also includes an air pump and an air supply line (53), wherein the air pump is connected to both the first jet section (51) and the second jet section (52) through the air supply line (53).

10. The detection device for engineering construction according to claim 1, characterized in that, The inner wall shape of the bucket (21) is adapted to the outer wall contour of the pipe.

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