Particle diffusion detection device for embankment defect detection

Abstract

The present invention discloses a particle diffusion detection device for levee defect detection in the field of levee structure defect detection technology. The device aims to address the problem in existing technologies that traditional defect detection methods are unable to determine more levee defects by detecting the flow state of the water body. The device comprises a sealed box and a probe rod mounted on the sealed box. A hopper and an air jet are provided inside the sealed box. The air jet is connected to the outlet of the hopper. A collection rod is provided at the outlet of the hopper, sliding along the axial direction of the outlet. The collection rod is provided with a collection slot. A drive mechanism is provided inside the sealed box. An air connection pipe and a nozzle are also mounted on the sealed box. The air connection pipe and the nozzle are connected to the air inlet and outlet of the air jet, respectively. The device is used to spray different types of solutions or observation particles underwater. It can perform quantitative material extraction and spraying, has good sealing and controllability, and can cope with a variety of methods for observing and analyzing different test substances.

Description

Technical Field

[0001] The invention relates to a particle diffusion detection device for detecting embankment defects, and belongs to the technical field of embankment structure defect detection. Background Art

[0002] Levees are man-made structures used to prevent flooding and protect coastal areas from flooding. Typically constructed of materials such as soil, concrete, or steel, they are designed with specific heights and thicknesses to cope with varying flooding levels. Levees face risks not only from tilting and settling due to foundation movement, but also from defects such as cracks and fissures caused by aging. Regular monitoring of levees can effectively mitigate potential risks and ensure their safety and reliability.

[0003] Currently, the main methods for embankment inspections include foundation settlement monitoring and water environment monitoring. However, these two methods have limited monitoring capabilities for the structural defects of the embankment itself. Traditional methods do not have the means to effectively detect problems such as embankment cracks, structural defects, leakage and erosion. Therefore, it is impossible to obtain sufficient data for reference in early inspections, which will increase the possibility of risks during the response period.

[0004] According to a solution proposed for the above problem, due to problems such as structural cracks in the levee, water will gush out at the location of the cracks, so local abnormal water flow will be formed at the corresponding location. This application is based on the principle of water flow monitoring and designs a method to spray observable particle powder in the water flow, detect the flow of particles at the spraying position, and judge whether the water flow state at the current position is normal based on the flow state of the particles, so as to judge whether there are structural defects in the levee structure and obtain more characteristics of the levee structure, thereby reducing the stress risk. As for the method of spraying particles underwater, since it is not possible to use the form of direct spraying from the nozzle to avoid nozzle clogging, there is no good response method to allow particles to be normally sprayed and diffused underwater, which is not convenient for video detection. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a particle diffusion detection device for embankment defect detection, which is used to spray different types of solutions or observation particles underwater, can perform quantitative material extraction and spraying, has high structural stability, good sealing and controllability, and can cope with a variety of methods to observe different substances to be tested.

[0006] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0007] The ion diffusion detection device for embankment defect detection provided by the present invention includes a high-speed camera assembly, a sealed box, and a probe rod installed on the sealed box. A hopper and an air jet are provided inside the sealed box. The air jet is connected to the discharge pipe position of the hopper. A collecting rod is provided at the discharge pipe position of the hopper for sliding along the axial direction of the discharge pipe. A collecting groove is provided on the collecting rod. A driving mechanism is provided inside the sealed box. The driving mechanism is used to drive the collecting rod to move up and down, thereby driving the collecting groove to interact between the hopper cavity and the inner cavity of the air jet. An air connecting pipe and a nozzle are also installed on the sealed box. The air connecting pipe and the nozzle are respectively connected and arranged at the air inlet end and the air outlet end of the air jet. The high-speed camera assembly is installed on the sealed box and the camera range of the high-speed camera assembly points to the injection area of ​​the nozzle.

[0008] Specifically, the nozzle includes an open tube arranged on the outer surface of the sealing box, the open tube is connected to the air injection pipe, and an elastic sealing sheet is provided inside the open tube. The elastic sealing sheet is in a closed state in a natural state to block the opening of the open tube.

[0009] Specifically, the cross section of the elastic sealing sheet is U-shaped, and the bottom surface of the U-shaped end surface is arranged to fit the bottom surface of the inner wall of the open tube.

[0010] Specifically, the driving mechanism includes a motor and a turntable arranged at the output end of the motor, an eccentric rod is provided at a non-center position of the turntable, a joint is provided at the end of the collecting rod away from the hopper, a connecting plate is assembled between the joint and the eccentric rod, and the two ends of the connecting plate are respectively rotatably matched with the joint and the eccentric rod.

[0011] Specifically, the feed port of the hopper is located on the upper surface of the sealing box, and the sealing box is provided with a material cover for sealing the feed port of the hopper, and the material cover is provided with a lifting ring.

[0012] Specifically, there are no less than two high-speed camera assemblies.

[0013] Specifically, the sealed box is provided with a group of positioning plates and a group of adjustment plates. The high-speed camera assembly includes a camera and a sealed shell. The camera is arranged in the sealed shell and the camera part of the camera is located on the outside of the sealed shell. The sealed shell is provided with a rotating rod and a threaded rod. The rotating rod rotates with the positioning plate. The adjustment plate is provided with an arc groove with the axis of the rotating rod as the center of the circle. The threaded rod is arranged inside the arc groove, and an anti-slip nut is threadedly connected to the threaded rod.

[0014] Specifically, it also includes an irradiation light source installed on the sealed box, and the irradiation light source is light or array laser.

[0015] Specifically, the air pipe, the wires of the driving mechanism and the signal wires of the high-speed camera assembly are fixed through a probe rod, and the probe rod is made up of a plurality of splicing rods, and a threaded plug and a threaded interface are respectively provided at both ends of the splicing rod.

[0016] Specifically, two adjacent splicing rods are each installed with positioning heads that match each other in position, and a positioning rod is inserted and connected to every two matching positioning heads.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention cross-connects the jet pipe and the discharge pipe of the hopper in a sealed box, uses the collecting groove of the collecting rod to transport the observed objects in the hopper to the airway of the jet pipe, and uses high-pressure gas to send the observed objects to the nozzle for spraying, thereby realizing quantitative material extraction and combined gas mixed spraying. The collecting rod intermittently blocks the jet pipe during operation, effectively reducing the loss of gas volume in the jet pipe, and has good spraying stability and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 1 is a schematic diagram of the overall structure of a particle diffusion detection device provided by an embodiment of the present invention;

[0020] Figure 2 This is another position structure diagram of the particle diffusion detection device provided by an embodiment of the present invention;

[0021] Figure 3 is a side view of a particle diffusion detection device provided by an embodiment of the present invention;

[0022] Figure 4 This invention Figure 3 A cross-sectional view of the particle diffusion detection device provided in the embodiment in the direction of AA;

[0023] Figure 5 This invention Figure 4 An enlarged view of the structure at position B of the particle diffusion detection device provided in the embodiment;

[0024] Figure 6 This invention Figure 4 An enlarged view of the structure at position C of the particle diffusion detection device provided in the embodiment;

[0025] Figure 7 is a partial front view of a particle diffusion detection device provided by an embodiment of the present invention;

[0026] Figure 8 This invention Figure 7 A cross-sectional view in the DD direction of a particle diffusion detection device provided in an embodiment;

[0027] Figure 9 This is a schematic diagram of the overall structure of a spray structure provided by an embodiment of the present invention;

[0028] Figure 10 This invention Figure 9 A schematic cross-sectional view of the injection structure provided in the embodiment;

[0029] Figure numerals: 1. Sealing box; 2. Hopper; 3. Collection rod; 4. Collection trough; 5. Jet pipe; 6. Driving mechanism; 601. Motor; 602. Turntable; 603. Connecting plate; 7. Air pipe; 8. Probe rod; 801. Splicing rod; 802. Positioning head; 803. Positioning plug rod; 9. High-speed camera assembly; 901. Camera; 902. Sealing shell; 903. Signal line; 10. Nozzle; 1001. Open tube; 1002. Elastic sealing sheet; 11. Material cover; 12. Lifting ring; 13. Positioning plate; 14. Adjusting plate; 15. Rotating rod; 16. Threaded rod; 17. Anti-slip nut; 18. Connector; 19. Sleeve; 20. Elastic nozzle. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] The particle diffusion detection device for embankment defect detection provided by the embodiment of the present invention is used to spray different types of solutions or observation particles underwater. It has high structural stability, good sealing and controllability, and can cope with various ways of observing different substances to be tested. In order to achieve the universal function of particle injection, the device is provided here, including a sealing box 1 and a probe rod 8 installed on the sealing box 1. The sealing box 1 is used to seal the associated component structure during underwater work and to seal the stored powdered materials. The probe rod 8 is used to extend the sealing box 1 to the corresponding depth position and angle position of the water body, so as to extend the sealing box 1 to different positions in the water body to spray powder particles. The corresponding cable structure can also be pre-fixed by the probe rod 8 to prevent the cable from floating and winding under the action of turbulence. In order to achieve the powder spraying, Figure 4-Figure 8 As shown, a hopper 2 and an air jet pipe 5 are provided inside the sealed box 1. The hopper 2 is used to store powder materials. The air jet pipe 5 is a hard pipe including an air inlet and an air outlet provided on the sealed box 1. The air jet pipe 5 is arranged to cross and communicate with the outlet of the hopper 2. Figure 4The cross-shaped manner shown is shown, and a collecting rod 3 is provided at the discharge port of the hopper 2 for sliding along the axial direction of the discharge port. The diameter of the collecting rod 3 matches the inner diameter of the discharge port of the hopper 2 to avoid the collecting rod 3 being unable to fully seal the discharge port of the hopper 2, resulting in direct leakage of powder material. In order to realize the quantitative delivery of powder into the air injection pipe 5, a collecting groove 4 is provided on the collecting rod 3. The collecting groove 4 is preferably a waist-shaped hole-shaped connecting groove. The lifting of the collecting groove 4 is used to drive the powder in the hopper 2 into the collecting groove 4 and then move down to the air injection pipe. 5 is used for powder supply and ejection. At this time, the air jet tube 5 is filled with high-pressure gas. After the collecting slot 4 falls into the air jet tube 5, the air jet tube 5 is opened. At the same time, the powder brought into the collecting slot 4 enters the interior of the pipe, so that the powder is ejected along with the high-pressure gas, realizing the quantitative supply of powder to the air jet tube 5. In order to realize automatic control, a driving mechanism 6 is provided inside the sealing box 1. The driving mechanism 6 is set to drive the collecting rod 3 to move back and forth, thereby driving the collecting slot 4 to interact between the cavity of the hopper 2 and the inner cavity of the air jet tube 5. That is, it should be noted here that the length of the collection trough 4 should not be too long to avoid connecting the inner chamber of the hopper 2 and the injection pipe 5 at the same time, preventing high-pressure gas from entering the interior of the hopper 2 to empty the powder from the hopper 2 at one time. In order to achieve the normal ejection of observable substances such as powder, an air connection pipe 7 and a nozzle 10 are also installed on the sealed box 1, wherein the air connection pipe 7 and the nozzle 10 are respectively connected to the air inlet and air outlet ends of the injection pipe 5. The air connection pipe 7 is used to connect to the air pump above the water surface to supply high-pressure gas, and the nozzle 10 is used to quantitatively eject the material. The nozzle 10 can be composed of a simple control valve and a pipe mouth, or the control valve can be set to be linked to the collection rod 3 to eject when it is needed to avoid backflow of the underwater environment water body, thereby contaminating the feed pipeline. At this time, by installing the high-speed camera assembly 9 on the sealed box 1 and configuring the camera range of the high-speed camera assembly 9 to point to the injection area of ​​the nozzle 10, the position of the underwater particles is detected by high-speed photography, so as to judge whether there are defects in the embankment and the possible types of defects according to the flow direction of the particles.

[0034] The first method of cooperating between the particles and the high-speed camera assembly 9 is as follows:

[0035] The particles are different-colored particles (such as titanium dioxide, etc.) or dye solutions. The high-speed camera assembly 9 continuously shoots in the state of fill light, and the flow direction of the water body is obtained by obtaining the camera results of the dyed area;

[0036] The second way of cooperating particles with the high-speed camera assembly 9:

[0037] The particles are particles such as lithium powder that can react with water to release heat. The high-speed camera assembly 9 uses an infrared thermal imager to perform heat analysis on a designated location in the water area and determines the flow direction of the particles by monitoring the changes in the heat area.

[0038] The third way of cooperating particles with the high-speed camera assembly 9:

[0039] The particles are particles that react with water to emit light (such as sodium powder solution preserved by oil, etc.), and the high-speed camera component 9 continuously captures the distribution of underwater light pollution to determine whether the flow direction of the water body is abnormal;

[0040] The fourth way of cooperating between particles and high-speed camera assembly 9:

[0041] The particles are reflective particles, and the reflection of the particles is obtained by irradiating the infrared laser array. The high-speed camera component 9 detects the position change state of the particles' short-term reflection to determine whether the water flow in the water area is normal.

[0042] The above configuration methods can be selected according to the actual situation of the water body. It is not required that each matching method be used in different water environments. When individual methods are difficult to implement, the required matching method should be flexibly judged according to on-site needs, and the type of corresponding high-speed camera component 9 should be changed.

[0043] The device determines the direction of water flow by monitoring changes in the powder's flow direction. If the monitored powder exhibits localized uneven flow, it is likely due to leakage from a dike crack or breach. Observers will need to conduct further analysis and judgment based on the actual images captured continuously. Since the judgment method is not the subject of this application, it will not be further described here. When conducting inspections, the above-mentioned structure should fully consider the impact of different water areas and the dike structure itself to determine the most appropriate method for detecting powder particles. Inspections should be avoided during strong winds and waves to prevent abnormal disturbances in the water flow from affecting the actual inspection and judgment results.

[0044] The particle diffusion detection device for embankment defect detection provided by the embodiment of the present invention is provided with a nozzle 10 that can automatically eject powder without actively opening and closing, and can close normally in a non-high-pressure gas connection state. The nozzle 10 is provided here to include an open tube 1001 provided on the outer surface of the sealing box 1. Specifically, the open tube 1001 is provided here to be connected to the injection pipe 5, and as shown Figure 6As shown, an elastic sealing sheet 1002 is provided inside the open tube 1001. The elastic sealing sheet 1002 is set to be in a closed state in a natural state to block the opening of the open tube 1001. The elastic sealing sheet 1002 extends from the upper end face of the open tube 1001 to the lower end face of the open tube 1001, that is, the elastic sealing sheet 1002 realizes the closing action of the open tube 1001 through elastic squeezing. When high-pressure gas passes through, the elastic sealing sheet 1002 automatically opens, so that the substance to be tested can be ejected normally. As a preferred embodiment, the cross-section of the elastic sealing sheet 1002 is set to be "U"-shaped, as shown in FIG. Figure 6 As shown, the bottom surface of the "U"-shaped end surface is arranged to fit the bottom surface of the inner wall of the open tube 1001, and the bottom is squeezed by utilizing the deformation ability of the material itself to achieve the closure of the open tube 1001 in the normal non-ventilated state. As another spray end structure design of the powder spraying structure, it can be designed as follows Figure 9 and Figure 10 As shown, it includes a sleeve 19 and an elastic nozzle 20 arranged inside the sleeve 19. The elastic nozzle is a rubber tube with elastic deformation. The elastic nozzle 20 is designed as a convergent tube as a whole and forms a closed mouth at the convergent end, that is, the end of the rubber tube presents a closed design with an arc transition. In the natural state, the wall thickness is preferably not less than 5 mm, and at the closed end of the elastic nozzle 20, there are at least two cutting slits designed to pass through the center of the circle so that the closed mouth can open when subjected to internal gas pressure (that is, the front end of the rubber tube is in the shape of a petal of a flower bud). The sleeve 19 is used to constrain the closed mouth of the elastic nozzle 20 to be in a mutually compressed and sealed state under normal conditions, so that after being subjected to the high pressure of the air injection pipe 5, it can be quickly compressed and opened to enable the gas to blow the powder out from the opened closed mouth position. The above method is as follows Figure 10 As shown, when high-pressure gas is provided from left to right, the opening at the front end will naturally open to release gas, and after the air is cut off from the jet pipe, the flowered end of the elastic rubber tube will naturally close due to elastic action. Since the air pressure inside the pipeline is significantly lower than the external water pressure, in addition to free elastic reset, the water pressure will also drive these elastic petals to stick to each other, thereby achieving the closure of the pipeline. The sleeve 19 is used to prevent unstable spraying or leakage caused by excessive opening angle of the petals, and is used to constrain the overall shape of the elastic nozzle 20.

[0045] The particle diffusion detection device for embankment defect detection provided by the embodiment of the present invention specifically provides a driving method for realizing intermittent ejection of automatically driven powder. Specifically, the driving mechanism 6 is provided here including a motor 601 and a turntable 602 provided at the output end of the motor 601. Figure 4 、 Figure 5 as well as Figure 8As shown, an eccentric rod is provided at a non-center position of the turntable 602, a joint 18 is provided at the end of the collecting rod 3 away from the hopper 2, and a connecting plate 603 is assembled between the joint 18 and the eccentric rod. The connecting plate 603 is used to connect the two for transmission, and the two ends of the connecting plate 603 are respectively rotated with the joint 18 and the eccentric rod. Figure 7 As shown, when the motor 601 is in action, the turntable 602 rotates, driving one end of the connecting plate 603 to move in a circular motion, while the other end of the connecting plate 603 is upper-limited in the vertical direction by the collecting rod 3, that is, the other end can only rise and fall following the position change of the turntable 602, so that during the continuous rotation of the motor 601, the connecting plate 603 can drive the collecting rod 3 to perform reciprocating lifting and lowering motion, thereby automatically realizing the intermittent supply of powder in the hopper 2 to the injection pipe 5, thereby facilitating automated powder spraying and detection.

[0046] The particle diffusion detection device for embankment defect detection provided by an embodiment of the present invention has a feed port of the hopper 2 located on the upper surface of the sealing box 1 in order to facilitate the addition of powder or other materials to be tested into the hopper 2, and a material cover 11 is provided on the sealing box 1 to seal the feed port of the hopper 2. In addition to fixing the material cover 11 with bolts, a lifting ring 12 can be provided on the material cover 11 to facilitate the lifting and removal operation of the material cover 11.

[0047] The particle diffusion detection device for embankment defect detection provided by the embodiment of the present invention has at least two high-speed camera assemblies 9 provided here to facilitate obtaining imaging results at different positions in different imaging analysis modes. Through multi-directional detection, not only can the imaging range be improved, but it is also beneficial to analyze different angles and obtain more accurate results. Figure 1 As shown, the upper and lower cameras can be set to judge the multi-angle view of the particle flow. As another preferred embodiment, considering that the device should be configured on the hull for detection, although the hull is relatively still on the water surface for measurement in an ideal state, considering the efficiency problem, the hull is generally in an unanchored and positioned state. At this time, the hull is required to move forward at a certain relative speed. In order to prevent the actual ship speed from affecting the camera range and avoiding the camera range being far away from the ejection area after the particles are ejected, the high-speed camera assembly 9 can also be set on both sides of the nozzle 10. After the powder particles are ejected forward, the time for the particles to diffuse evenly can allow the high-speed camera assembly 9 to move to the corresponding optimal shooting position and retain the effective shooting time period as much as possible to obtain a more accurate shooting effect.

[0048] In order to facilitate the adjustment of the camera angle position of the high-speed camera assembly 9, a particle diffusion detection device for embankment defect detection provided by the embodiment of the present invention can be provided with a set of positioning plates 13 and a set of adjustment plates 14 on the sealed box 1, such as Figure 2 As shown, specifically, the high-speed camera assembly 9 includes a camera 901 and a sealed shell 902. The camera 901 is arranged in the sealed shell 902 and the camera head portion of the camera 901 is located outside the sealed shell 902, so that the sealed shell 902 can normally protect the circuit portion of the camera 901, and the outflow camera portion is outside the sealed shell 902 to facilitate the collection of shooting information. The specific sealing means are not unique and will not be described in detail here. In order to enable the camera 901 to adjust the angle position of the camera 901 according to the actual situation of the water area, the sealing means are provided here. A rotating rod 15 and a threaded rod 16 are provided on the shell 902, wherein the rotating rod 15 is provided to rotate with the positioning plate 13, and an arc groove with the axis of the rotating rod 15 as the center is provided on the adjustment plate 14, the threaded rod 16 is arranged inside the arc groove, and an anti-slip nut 17 is threadedly connected to the threaded rod 16. When the angular position of the high-speed camera assembly 9 needs to be adjusted, the anti-slip nut 17 is loosened, and after the sealing shell 902 is manually controlled to rotate to the appropriate position, the anti-slip nut 17 is tightened again to allow the anti-slip nut 17 to hold the adjustment plate 14 tightly.

[0049] The particle diffusion detection device for embankment defect detection provided by an embodiment of the present invention is designed to adapt to different types of particles so that the high-speed camera component 9 can normally monitor the position of the particles to be measured. The device is also provided with an illumination light source installed on the sealed box 1. The illumination light source is set to be a light or a laser array. By capturing the color or reflected light changes of the particles, the concentration trend of the particles is judged, and the flow state of the water body is further judged.

[0050] The particle diffusion detection device for embankment defect detection provided by an embodiment of the present invention has a control circuit that needs to be routed to a position above the water surface (such as on the hull). Therefore, in order to facilitate routing and avoid wear or entanglement of flexible pipelines due to fluid disturbance, an air pipe 7, wires of the drive mechanism 6, and a signal line 903 of the high-speed camera assembly 9 are fixed by a probe rod 8, which can be gradually bundled with multiple cable ties. In order to achieve detection and measurement at different depths, the probe rod 8 can be arranged to be spliced ​​from multiple splicing rods 801 to meet the needs of different depths, and threaded plugs and threaded interfaces are respectively provided at both ends of the splicing rod 8 for matching adjacent splicing rods 801 for extension or shortening.

[0051] The particle diffusion detection device for levee defect detection provided by the embodiment of the present invention, in order to ensure the normal direction and position of the sealing box 1 underwater, it is necessary to prevent the two adjacent splicing rods 801 from rotating relative to each other through the threads. Positioning heads 802 with matching positions are installed at the positions where the two adjacent splicing rods 801 are close to each other, such as Figure 2 As shown, a positioning rod 803 is inserted and connected to every two matching positioning heads 802. After the splicing rods 801 are relatively fixed by threads, the positioning rods 803 perform secondary positioning to prevent adjacent splicing rods 801 from rotating relative to each other, thereby causing uncontrollable changes in the angular position of the sealing box 1.

[0052] The present invention uses the above-mentioned mechanism to determine if the water flow direction is abnormal, thereby providing further reference for determining whether cracks or other defects have occurred in the embankment structure. The specific operating steps are as follows:

[0053] S1: Assemble the probe rod 8 and the sealing box 1, and configure the sealing box 1 to have detection and powder spraying functions;

[0054] S2: The probe 8 descends, driving the sealed box 1 to extend into the corresponding area inside the water body;

[0055] S3: Start or keep the driving mechanism 6 to spray powder, and enable the high-speed camera assembly 9 to continuously take pictures;

[0056] S4: driving the sealed box 1 to move horizontally and continuously monitoring and photographing the sprayed powder;

[0057] S5: Repeat S2-S4 until the powder spraying and shooting of the entire area of ​​the embankment structure is completed.

[0058] In the above method, the probe rod 8 should preferably be set on the hull, and efficient powder spraying detection can be achieved by uniformly controlling the speed of the hull. By moving the sealing box 1 laterally at different horizontal layers, the reciprocating lifting and lowering action process of the probe rod 8 can be effectively reduced, which is conducive to simplifying the actual detection operation.

[0059] In the above steps, since the photos taken are not real-time analysis photos, attention should be paid to recording the depth of the position of the sealing box 1 when taking pictures. The depth position can be determined by the number of splicing rods 801, or a water pressure monitoring sensor is set on the sealing box 1 to calculate it through a formula. Since the specific implementation method is not unique, it will not be introduced in detail. If necessary, it is necessary to equip the hull with GPS and record the real-time position of the hull. When taking pictures, the timestamp is retained to facilitate the subsequent call of the hull position (that is, the position of the levee) and the depth position of the sealing box 1 for combined analysis, thereby providing a more accurate position reference for the defect assessment of the levee and providing a more accurate plane position defect composed of the X-axis and the Z-axis.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A particle diffusion detection device for embankment defect detection, comprising a high-speed camera assembly, characterized in that: It also includes a sealed box and a probe rod installed on the sealed box, a hopper and an air jet pipe are provided inside the sealed box, the air jet pipe is connected to the discharge pipe position of the hopper, a collection rod is provided at the discharge port of the hopper and slides along the axial direction of the discharge port, a collection slot is provided on the collection rod, a driving mechanism is provided inside the sealed box, the driving mechanism is used to drive the collection rod to move up and down, thereby driving the collection slot to interact between the hopper cavity and the inner cavity of the air jet pipe, an air connection pipe and a nozzle are also installed on the sealed box, the air connection pipe and the nozzle are respectively connected to the air inlet end and the air outlet end of the air jet pipe, and the high-speed camera The machine assembly is installed on the sealed box and the camera range of the high-speed camera assembly is directed to the spraying area of ​​the nozzle; the nozzle includes an open tube arranged on the outer surface of the sealed box, the open tube is connected to the injection pipe, and an elastic sealing sheet is provided inside the open tube, and the elastic sealing sheet is in a closed state in a natural state to block the opening of the open tube; the driving mechanism includes a motor and a turntable arranged at the output end of the motor, an eccentric rod is provided at a non-center position of the turntable, a joint is provided at the end of the collecting rod away from the hopper, a connecting plate is assembled between the joint and the eccentric rod, and the two ends of the connecting plate are respectively rotatably matched with the joint and the eccentric rod.

2. The particle diffusion detection device for embankment defect detection according to claim 1, characterized in that: The cross section of the elastic sealing sheet is U-shaped, and the bottom surface of the U-shaped end surface is arranged to fit the bottom surface of the inner wall of the open tube.

3. The particle diffusion detection device for embankment defect detection according to claim 1, characterized in that: The feed port of the hopper is located on the upper surface of the sealing box. The sealing box is provided with a material cover for sealing the feed port of the hopper. The material cover is provided with a lifting ring.

4. The particle diffusion detection device for embankment defect detection according to claim 1, characterized in that: There are no less than two high-speed camera assemblies.

5. The particle diffusion detection device for embankment defect detection according to claim 1, characterized in that: The sealed box is provided with a group of positioning plates and a group of adjustment plates. The high-speed camera assembly includes a camera and a sealed shell. The camera is arranged in the sealed shell and the camera head part of the camera is located on the outside of the sealed shell. The sealed shell is provided with a rotating rod and a threaded rod. The rotating rod rotates with the positioning plate. The adjustment plate is provided with an arc groove with the axis of the rotating rod as the center of the circle. The threaded rod is arranged inside the arc groove, and an anti-slip nut is threadedly connected to the threaded rod.

6. The particle diffusion detection device for embankment defect detection according to claim 1, characterized in that: It also includes an irradiation light source installed on the sealed box, and the irradiation light source is light or array laser.

7. The particle diffusion detection device for embankment defect detection according to claim 1, characterized in that: The air connection pipe, the electric wires of the driving mechanism and the signal wires of the high-speed camera assembly are fixed through a probe rod. The probe rod is formed by splicing a plurality of splicing rods. Both ends of the splicing rod are respectively provided with a threaded plug and a threaded interface.

8. The particle diffusion detection device for embankment defect detection according to claim 7, characterized in that: Positioning heads that match each other are installed at positions close to two adjacent splicing rods, and a positioning rod is inserted and connected to every two matching positioning heads.

Images