Automatic drainage pipe network sampling and analyzing device based on Internet of Things

Abstract

The invention discloses an automatic drainage pipe network sampling analysis device based on the Internet of Things, and relates to the technical field of sampling analysis, the automatic drainage pipe network sampling analysis device comprises a multi-dimensional moving mechanism, the multi-dimensional moving mechanism comprises a vertical depth adjusting assembly and a transverse depth adjusting assembly, the vertical depth adjusting assembly comprises a mounting part fixedly connected with the inner wall of a drainage pipe network, and the transverse depth adjusting assembly comprises a transverse depth adjusting assembly; and the top of the mounting part is fixedly connected with a first motor. Through the arrangement of the multi-dimensional moving mechanism, the vertical depth adjusting assembly drives a first screw rod through a first motor to drive a second mounting frame to slide along a first mounting frame, and different vertical depths are accurately adapted; a first adjusting assembly and a second adjusting assembly of the transverse depth adjusting assembly cooperate, a second motor drives a second screw to drive a sliding block to move, the transverse position is synchronously adjusted, the limitation of traditional single-dimensional movement is broken through, a key area on the inner side of a pipe network can be covered, and a sampling blind area is avoided.

Description

Technical Field

[0001] This invention relates to the field of sampling and analysis technology, and more specifically to an automated drainage network sampling and analysis device based on the Internet of Things. Background Technology

[0002] Traditional IoT-based automated drainage network sampling and analysis devices are widely used in municipal main road networks, industrial park sewage networks, and combined sewer systems. Their core function is to collect water and sludge samples within the network, monitoring key water quality parameters such as COD, ammonia nitrogen, and heavy metals. This provides data support for urban water environment management, pollution source tracing, and network operation and maintenance. They can replace manual well sampling, avoiding safety risks such as toxic gases and oxygen deficiency. Timed sampling enhances monitoring continuity, making them crucial equipment for ensuring the stable operation of drainage systems. However, in complex pipe networks that require precise adaptation to different depths and lateral positions, as well as in scenarios involving high-impurity water bodies and hardened silt, traditional devices are mostly single-dimensional moving structures that cannot simultaneously adjust vertical depth and lateral position, making it difficult to cover the inner area of ​​the pipe network. Furthermore, during data collection, only local areas within the pipe network cross-section can be sampled, and the silt that has settled to the bottom of the pipe cannot be sampled and analyzed. Therefore, an automated drainage pipe network sampling and analysis device based on the Internet of Things is proposed. Summary of the Invention

[0003] This invention provides an automated drainage network sampling and analysis device based on the Internet of Things to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An IoT-based automated drainage network sampling and analysis device includes a multi-dimensional moving mechanism, comprising a vertical depth adjustment component and a horizontal depth adjustment component. The vertical depth adjustment component includes an installation part fixedly connected to the inner wall of the drainage network, with a first motor fixedly connected to the top of the installation part. The horizontal depth adjustment component includes a first adjustment component and a second adjustment component, with a second mounting plate fixedly connected to the surface of the second adjustment component, and the top of the first adjustment component fixedly connected to the bottom of the second mounting frame. A multi-dimensional water sampling mechanism includes a water sampling component and a silt sampling component. The water sampling component includes a sampling point adjustment component and a sampling component. The sampling point adjustment component includes an adjustment motor, with the surface of the adjustment motor fixedly connected to the surface of the second mounting plate, and an adjustment disc fixedly connected to one end of the adjustment motor shaft. The silt sampling component includes a second locking component and a depth adjustment bracket, with the surface of the depth adjustment bracket fixedly connected to the bottom of the second locking component.

[0005] A further improvement of the technical solution of the present invention is that: a first screw is fixedly connected to one end of the first motor shaft, a second mounting bracket is threadedly connected to the surface of the first screw, the bottom of the mounting component is fixedly connected to the first mounting bracket, and the interior of the second mounting bracket is slidably connected to the surface of the first mounting bracket.

[0006] A further improvement of the technical solution of the present invention is that: the first adjustment component includes a first mounting plate, the surface of the first mounting plate is fixedly connected to the bottom of the second mounting bracket, a second motor is fixedly connected to the surface of the first mounting plate, a second screw is fixedly connected to one end of the shaft of the second motor, a slider is threadedly connected to the surface of the second screw, a slide rail is slidably connected inside the slider, the bottom of the slide rail is fixedly connected to the top of the first mounting plate, the structure of the first adjustment component is the same as that of the second adjustment component, and the second adjustment component is mounted on the slider.

[0007] A further improvement of the technical solution of the present invention is that: the sampling point adjustment component further includes a vortex-shaped protrusion, one side of the vortex-shaped protrusion is fixedly connected to one side of the adjustment disk, the other side of the second mounting plate is fixedly connected to a mounting box, the inner wall of the mounting box is slidably connected to an adjustment push rod, one end of the adjustment push rod is fixedly connected to a driving block, the surface of the driving block is slidably connected to the surface of the vortex-shaped protrusion, the upper end of the adjustment push rod is fixedly connected to a first locking block, and the adjustment push rod is arranged in a circumferential array in multiple groups.

[0008] A further improvement of the technical solution of the present invention is that: the sampling component includes a first snap-fit ​​member, the inner wall of the first snap-fit ​​member overlaps with the surface of the first snap-fit ​​block, the first snap-fit ​​member includes a snap-fit ​​sleeve, a top rod is slidably connected inside the snap-fit ​​sleeve, a top block is fixedly connected to one end of the top rod, the surface of the top block engages with the surface of the first snap-fit ​​block, a spring is attached to one end of the top block near the top rod, the other end of the spring overlaps with the inside of the snap-fit ​​sleeve, and a sampling box is fixedly connected to the top of the snap-fit ​​sleeve.

[0009] A further improvement of the technical solution of the present invention is as follows: a sampling chamber is provided on one side of the inner cavity of the sampling box, the inner wall of the sampling chamber is fixedly connected to the inner wall of the debris filter plate, a water sampling branch pipe is provided on one side of the lower end of the inner cavity of the sampling chamber, a sampling pump is provided inside the end of the water sampling branch pipe away from the sampling chamber, a solenoid valve is provided at the end of the water sampling branch pipe, a ring-shaped water sampling main pipe is connected to the end of the water sampling branch pipe, a connecting pipe is provided at the lower end of the ring-shaped water sampling main pipe, one end of the connecting pipe is connected to the inlet of the water quality analyzer, an external connecting pipe with a built-in solenoid valve is provided at the upper end of the ring-shaped water sampling main pipe, one end of the external connecting pipe is connected to the heat pump air outlet pipe, and the other end of the external connecting pipe is connected to the pure water supply pipe.

[0010] A further improvement of the technical solution of the present invention is that: an anti-clogging unit is fixedly connected to the other side of the inner cavity of the sampling box, the anti-clogging unit includes a water pressure testing rubber sheet and a pull rod, the water pressure testing rubber sheet is disposed on the other side of the lower end of the inner cavity of the sampling box, one end of the pull rod is fixedly connected to the surface of the water pressure testing rubber sheet, the other end of the pull rod is fixedly connected to a pressure plate, and guide rods are slidably connected inside both ends of the pressure plate, and the ends of the guide rods are fixedly connected to the inner wall of the sampling box.

[0011] A further improvement of the technical solution of the present invention is that: the anti-clogging unit further includes a pulse backflush pump, the top of the pulse backflush pump is provided with a water inlet pipe, the surface of the pulse backflush pump is provided with a water outlet pipe, one end of the water outlet pipe is connected to the lower end of the inner cavity of the sampling chamber, a switch mounting bracket is fixedly connected to the surface of the pulse backflush pump, and a push-button switch electrically connected to the pulse backflush pump is fixedly connected to the surface of the switch mounting bracket, the position of the push-button switch corresponds to the pressure plate.

[0012] A further improvement of the technical solution of the present invention is that: the sludge sampling component further includes a depth adjustment motor, the surface of the depth adjustment motor is fixedly connected to the inner wall of the depth adjustment bracket, a lifting plate is slidably connected to the surface of the depth adjustment bracket, a third screw is threadedly connected to the inside of the lifting plate, the upper end of the third screw is fixedly connected to the output end of the depth adjustment motor, the structure of the second snap-fit ​​is the same as that of the first snap-fit, and the inner wall of the second snap-fit ​​overlaps with the snap-fit ​​block on the surface of the mounting box.

[0013] A further improvement of the technical solution of the present invention is that: a shell-crushing motor is fixedly connected to the surface of the lifting plate; a drive gear is fixedly connected to one end of the shaft of the shell-crushing motor; a drive gear meshes with the surface of the drive gear; a crushing pipe is fixedly connected to the bottom of the drive gear; the surface of the crushing pipe is rotatably connected to the interior of the lifting plate; an extraction pipe is rotatably connected to the interior of the crushing pipe; a sludge connecting pipe is provided at the upper end of the extraction pipe; one end of the sludge connecting pipe is connected to a detection chamber with an internal electrode; and one end of the detection chamber is connected to a sludge pump through a pipe.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention provides an automated drainage network sampling and analysis device based on the Internet of Things (IoT). Through a multi-dimensional movement mechanism, the vertical depth adjustment component, driven by a first motor and a first screw, moves a second mounting bracket along the first mounting bracket, precisely adapting to different vertical depths. The horizontal depth adjustment component, with its first and second adjustment components working in tandem, moves a slider via a second motor and a second screw, synchronously adjusting the horizontal position. This overcomes the limitations of traditional single-dimensional movement, enabling coverage of key areas inside the pipe network and avoiding sampling blind spots. Simultaneously, the sampling point adjustment component drives the adjustment disk to rotate via the adjustment motor. The vortex-shaped protrusion pushes multiple sets of adjustment push rods to move along the circumferential array, enabling the sampling component to achieve simultaneous multi-point sampling of the pipeline cross-section, replacing traditional local sampling and ensuring sample representativeness. While sampling the water body, the sludge sampling component drives the third screw via the depth adjustment motor to control the lowering of the lifting plate. The crust breaking motor drives the breaking pipe to break up the crusted sludge. In conjunction with the extraction pipe and sludge pump, the sludge is extracted to the detection chamber, achieving efficient sludge sampling and analysis. This fills the gap in traditional devices that cannot collect bottom sludge, and improves the overall sampling efficiency and data accuracy of complex pipeline networks. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention in its installation state; Figure 2 This is a schematic diagram of the unfolded structure of the present invention; Figure 3 This is a schematic diagram of the structure in the contracted state of the present invention; Figure 4 This is a schematic diagram of the side structure of the present invention in its contracted state; Figure 5 This is a schematic diagram of the multi-dimensional movement mechanism structure of the present invention; Figure 6 This is a schematic diagram of the multi-dimensional water sampling mechanism of the present invention; Figure 7 This is a schematic diagram of the right side of the multi-dimensional water sampling mechanism of the present invention; Figure 8 This is a schematic diagram of the left side of the multi-dimensional water sampling mechanism of the present invention; Figure 9 This is a schematic diagram of the sampling point adjustment component of the present invention; Figure 10 This is a schematic diagram of the sampling component structure of the present invention; Figure 11 This is a partial structural diagram of the sludge sampling component of the present invention; Figure 12 This is a schematic diagram of the sludge sampling component structure of the present invention; Figure 13 This is a schematic diagram of the exploded structure of the multi-dimensional water sampling mechanism of the present invention; Figure 14 This is a cross-sectional view of the sampling component of the present invention; Figure 15 This is a bottom view of the sampling component of the present invention; Figure 16 This is a schematic diagram of the anti-clogging unit structure of the present invention; Figure 17 For the present invention Figure 12 Enlarged structural diagram at point A in the middle; Figure 18 For the present invention Figure 16 Enlarged structural diagram at point B; In the diagram: 11. Mounting component; 12. First motor; 13. First screw; 14. First mounting bracket; 15. Second mounting bracket; 21. First mounting plate; 22. Second motor; 23. Second screw; 24. Slider; 25. Slide rail; 26. Second mounting plate; 31. Adjusting motor; 32. Adjusting disc; 33. Scroll-shaped protrusion; 34. Mounting box; 35. Adjusting push rod; 36. Drive block; 37. First locking block; 41. Locking sleeve; 42. Top rod; 43. Top block; 44. Spring; 45. Sampling box; 46. Sampling chamber; 47. Debris filter plate; 48. Water sampling branch pipe; 49. Sampling pump; 410. Solenoid valve; 41 1. Circular water body sampling main pipe; 412. Connecting pipe; 413. Water quality tester; 414. External pipe; 51. Water pressure test rubber sheet; 52. Pull rod; 53. Pressure plate; 54. Guide rod; 55. Pulse backwash pump; 56. Inlet pipe; 57. Outlet pipe; 58. Switch mounting bracket; 59. Push-button switch; 61. Second snap-fit ​​component; 62. Depth adjustment bracket; 63. Depth adjustment motor; 64. Third screw; 65. Lifting plate; 66. Shell crushing motor; 67. Drive gear; 68. Active gear; 69. Crushing pipe; 610. Extraction pipe; 611. Sludge connecting pipe; 612. Detection chamber; 613. Sludge pump. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to embodiments: Example 1, as Figures 1-18 As shown, this invention provides an automated drainage network sampling and analysis device based on the Internet of Things, including a multi-dimensional moving mechanism. The multi-dimensional moving mechanism includes a vertical depth adjustment component and a horizontal depth adjustment component. The vertical depth adjustment component includes an installation part 11 fixedly connected to the inner wall of the drainage network, and a first motor 12 fixedly connected to the top of the installation part 11. The horizontal depth adjustment component includes a first adjustment component and a second adjustment component. A second mounting plate 26 is fixedly connected to the surface of the second adjustment component, and the top of the first adjustment component is fixedly connected to the bottom of the second mounting frame 15. A multi-dimensional water sampling mechanism includes a water sampling component and a silt sampling component. The water sampling component includes a sampling point adjustment component and a sampling component. The sampling point adjustment component includes an adjustment motor 31. The surface of the adjustment motor 31 is fixedly connected to the surface of the second mounting plate 26, and an adjustment disc 32 is fixedly connected to one end of the shaft of the adjustment motor 31. The silt sampling component includes a second snap-fit ​​component 61 and a depth adjustment bracket 62. The surface of the depth adjustment bracket 62 is fixedly connected to the bottom of the second snap-fit ​​component 61.

[0017] In this embodiment, after the mounting component 11 is fixed to the inner wall of the drainage pipe network, the vertical depth adjustment component is activated. The first motor 12 drives the first screw 13 to rotate, causing the second mounting bracket 15 to slide along the first mounting bracket 14, thus precisely adjusting the vertical depth of the overall sampling mechanism. At the same time, the horizontal depth adjustment component is activated. The second motor 22 of the first adjustment component drives the second screw 23, causing the slider 24 to move laterally along the slide rail 25. Since the second adjustment component is fixed to the slider 24 and has the same structure as the first adjustment component, the horizontal position of the second mounting plate 26 can be further fine-tuned, achieving synchronous adjustment of vertical and horizontal dimensions, thus solving the problem of difficult coverage with traditional single-dimensional movement. The problem is located in the inner area of ​​the pipeline. Then, the motor 31 drives the adjustment plate 32 to rotate, and the vortex-shaped protrusion 33 pushes the drive block 36, causing the adjustment push rod 35 to slide along the mounting box 34 and drive the first locking block 37 to extend. The position of the locking block 37 is adjusted. At the same time, the first locking block 37 is engaged with the locking sleeve 41 of the first locking member, and the spring 44 assists in tightening the top block 43, so that the top block 43 engages with the groove on the surface of the first locking block 37, thus completing the fixing of the sampling box 45 of the water sampling component. When the sampling box 45 is removed, the push rod 42 is pulled to disengage the top block 43 from the groove on the surface of the first locking block 37, so that the locking sleeve 41 can be removed from the surface of the first locking block 37.

[0018] Example 2, as Figures 1-18As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, one end of the shaft of the first motor 12 is fixedly connected to a first screw 13, the surface of the first screw 13 is threadedly connected to a second mounting bracket 15, the bottom of the mounting component 11 is fixedly connected to a first mounting bracket 14, the interior of the second mounting bracket 15 is slidably connected to the surface of the first mounting bracket 14, the first adjusting assembly includes a first mounting plate 21, the surface of the first mounting plate 21 is fixedly connected to the bottom of the second mounting bracket 15, the surface of the first mounting plate 21 is fixedly connected to a second motor 22, one end of the shaft of the second motor 22 is fixedly connected to a second screw 23, the surface of the second screw 23 is threadedly connected to a slider 24, the interior of the slider 24 is slidably connected to a slide rail 25, and the slide rail 25... The bottom is fixedly connected to the top of the first mounting plate 21. The structure of the first adjustment component is the same as that of the second adjustment component. The second adjustment component is mounted on the slider 24. The sampling point adjustment component also includes a vortex-shaped protrusion 33. One side of the vortex-shaped protrusion 33 is fixedly connected to one side of the adjustment disk 32. The other side of the second mounting plate 26 is fixedly connected to the mounting box 34. The inner wall of the mounting box 34 is slidably connected to the adjustment push rod 35. One end of the adjustment push rod 35 is fixedly connected to the drive block 36. The surface of the drive block 36 is slidably connected to the surface of the vortex-shaped protrusion 33. The upper end of the adjustment push rod 35 is fixedly connected to the first locking block 37. Multiple sets of adjustment push rods 35 are arranged in a circumferential array. The sampling component includes a first locking member. The inner wall of the first locking member overlaps with the surface of the first locking block 37. The first snap-fit ​​component includes a snap-fit ​​sleeve 41. A push rod 42 is slidably connected inside the snap-fit ​​sleeve 41. A push block 43 is fixedly connected to one end of the push rod 42. The surface of the push block 43 engages with the surface of the first snap-fit ​​block 37. A spring 44 is attached to one end of the push block 43 near the push rod 42. The other end of the spring 44 is attached to the inside of the snap-fit ​​sleeve 41. A sampling box 45 is fixedly connected to the top of the snap-fit ​​sleeve 41. A sampling chamber 46 is provided on one side of the inner cavity of the sampling box 45. The inner wall of the sampling chamber 46 is fixedly connected to the inner wall of a debris filter plate 47. A water sampling branch pipe 48 is provided on one side of the lower end of the inner cavity of the sampling chamber 46. A sampling pump 49 is installed inside the end of the water sampling branch pipe 48 away from the sampling chamber 46. A solenoid valve 410 is installed at the end of the water sampling branch pipe 48. Water sampling... The end of branch pipe 48 is connected to an annular water sampling main pipe 411. A connecting pipe 412 is installed at the lower end of the annular water sampling main pipe 411. One end of the connecting pipe 412 is connected to the inlet of the water quality analyzer 413. An external connecting pipe 414 with a built-in solenoid valve is installed at the upper end of the annular water sampling main pipe 411. One end of the external connecting pipe 414 is connected to a heat pump air outlet pipe, and the other end is connected to a pure water supply pipe. An anti-clogging unit is fixedly connected to the other side of the inner cavity of sampling box 45. The anti-clogging unit includes a water pressure testing rubber sheet 51 and a pull rod 52. The water pressure testing rubber sheet 51 is located on the other side of the lower end of the inner cavity of sampling chamber 46. One end of the pull rod 52 is fixedly connected to the surface of the water pressure testing rubber sheet 51, and the other end of the pull rod 52 is fixedly connected to a pressure plate 53.Guide rods 54 are slidably connected to both ends of the tablet 53, and the ends of the guide rods 54 are fixedly connected to the inner wall of the sampling box 45.

[0019] In this embodiment, the module is quickly assembled by engaging and fixing the second snap-fit ​​component 61, which has the same structure as the first snap-fit ​​component, with the snap-fit ​​block on the surface of the mounting box 34. Then, water sampling is carried out in the whole area of ​​the water body. The sampling pump 49 is started, and the water in the pipeline enters the sampling chamber 46 of the sampling box 45. After impurities are filtered out by the impurity filter plate 47, the water is transported through the water sampling branch pipe 48 and the annular water sampling main pipe 411 to cover multiple areas of the pipeline cross section, avoiding local sampling limitations. Then, it is transported to the water quality analyzer 413 through the connecting pipe 412 to complete in-situ analysis. If the sampling chamber is blocked, the water pressure drops, the water pressure test rubber sheet 51 contracts, and the pressure plate 53 slides along the guide rod 54 through the pull rod 52. Pressing the push-button switch 59 triggers the pulse backwash pump 55 to backwash and clear the blockage through the outlet pipe 57.

[0020] Example 3, as Figures 1-18 As shown, based on Embodiment 1, the present invention provides a technical solution: Preferably, the anti-clogging unit further includes a pulse backflush pump 55, an inlet pipe 56 is provided on the top of the pulse backflush pump 55, an outlet pipe 57 is provided on the surface of the pulse backflush pump 55, one end of the outlet pipe 57 is connected to the lower end of the inner cavity of the sampling chamber 46, a switch mounting bracket 58 is fixedly connected to the surface of the pulse backflush pump 55, a push-button switch 59 electrically connected to the pulse backflush pump 55 is fixedly connected to the surface of the switch mounting bracket 58, the position of the push-button switch 59 corresponds to the pressure plate 53, the sludge sampling assembly further includes a depth adjustment motor 63, the surface of the depth adjustment motor 63 is fixedly connected to the inner wall of the depth adjustment bracket 62, a lifting plate 65 is slidably connected to the surface of the depth adjustment bracket 62, and a third screw 6 is threadedly connected to the inside of the lifting plate 65. 4. The upper end of the third screw 64 is fixedly connected to the output end of the depth adjustment motor 63. The structure of the second snap-fit ​​part 61 is the same as that of the first snap-fit ​​part. The inner wall of the second snap-fit ​​part 61 overlaps with the snap-fit ​​block on the surface of the mounting box 34. The surface of the lifting plate 65 is fixedly connected to the shell crushing motor 66. One end of the shaft of the shell crushing motor 66 is fixedly connected to the drive gear 67. The surface of the drive gear 67 is meshed with the drive gear 68. The bottom of the drive gear 68 is fixedly connected to the crushing pipe 69. The surface of the crushing pipe 69 is rotatably connected to the interior of the lifting plate 65. The interior of the crushing pipe 69 is rotatably connected to the extraction pipe 610. The upper end of the extraction pipe 610 is provided with a sludge connecting pipe 611. One end of the sludge connecting pipe 611 is connected to the detection chamber 612 with built-in electrodes. One end of the detection chamber 612 is connected to the sludge pump 613 through a pipe.

[0021] In this embodiment, the third screw 64 is driven by the depth adjustment motor 63, causing the lifting plate 65 to descend to the bottom of the pipe along the depth adjustment bracket 62; the crust breaking motor 66 drives the breaking pipe 69 to rotate through the drive gear 67 and the active gear 68, breaking the crusted sludge; the sludge pump 613 pumps the uniform sludge slurry to the detection chamber 612 through the sludge connecting pipe 611; the detection chamber 612 has a built-in distance sensor that triggers the pump to stop to ensure that the sample volume meets the standard. Once the sample volume reaches the standard, the micro-reagent chamber inside the cavity automatically injects dilute nitric acid-hydrogen peroxide digestion solution to break down the organic matter in the sludge and convert bound heavy metals into free ions. The detection chamber contains a glassy carbon working electrode, a reference electrode, and a platinum auxiliary electrode. During the enrichment stage, a constant voltage relative to the reference electrode is applied to the working electrode for 2 minutes, causing free heavy metal ions to deposit as elemental metals on the electrode surface. During the dissolution stage, the voltage is increased to reach a specific heavy metal dissolution potential, causing the deposited metal to oxidize into ions and release electrons. The auxiliary electrode conducts current to maintain system stability. Subsequently, the signal acquisition module records the voltage-current dissolution curve. Different dissolution peaks in the curve correspond to different heavy metal types, and the peak current magnitude is positively correlated with the concentration. The control system calls a preset standard curve to calculate the heavy metal concentration in the sludge. The results, along with the data obtained from the water quality analyzer 413, are uploaded to a remote platform via the Internet of Things and simultaneously displayed on the local terminal. An alarm is triggered when the concentration exceeds the standard, providing data support for pollution source tracing.

[0022] The working principle of this IoT-based automated drainage network sampling and analysis device will be explained in detail below.

[0023] like Figures 1-18As shown, during use, multi-dimensional position adjustment is first performed to cover key areas of the pipe network. After fixing the mounting component 11 to the inner wall of the drainage pipe network, the vertical depth adjustment component is activated. The first motor 12 drives the first screw 13 to rotate, causing the second mounting bracket 15 to slide along the first mounting bracket 14, precisely adjusting the vertical depth of the overall sampling mechanism. At the same time, the horizontal depth adjustment component is activated. The second motor 22 of the first adjustment component drives the second screw 23, causing the slider 24 to move laterally along the slide rail 25. Since the second adjustment component is mounted on the slider 24 and has the same structure as the first adjustment component, the horizontal position of the second mounting plate 26 can be further fine-tuned, solving the problem that traditional single-dimensional movement is difficult to cover the inner area of ​​the pipe network. Subsequently, the adjustment motor 31 drives the adjustment... When the disc 32 rotates, the vortex-shaped protrusion 33 pushes the drive block 36, causing the adjusting push rod 35 to slide along the mounting box 34 and extend the first locking block 37, adjusting its position. Simultaneously, the first locking block 37 engages with the locking sleeve 41 of the first locking member, and the spring 44 assists in tightening the top block 43, causing the top block 43 to mesh with the groove on the surface of the first locking block 37, thus fixing the sampling box 45 of the water sampling assembly. When removing the sampling box 45, pulling the push rod 42 disengages the top block 43 from the groove on the surface of the first locking block 37, allowing the locking sleeve 41 to be removed from the surface of the first locking block 37. Furthermore, the sludge sampling assembly is fixed to the locking block on the surface of the mounting box 34 via a second locking member 61 with the same structure as the first locking member, achieving rapid module installation. Assembly; then, full-area water sampling is carried out. Sampling pump 49 is started, and water from the pipeline enters the sampling chamber 46 of sampling box 45. After impurities are filtered out by impurity filter plate 47, it passes through water sampling branch pipe 48 and annular water sampling main pipe 411, covering multiple areas of the pipeline cross section to avoid local sampling limitations. Then, it is transported to water quality analyzer 413 through connecting pipe 412 to complete in-situ analysis. If filter plate 47 is blocked, water pressure decreases, water pressure test rubber sheet 51 contracts, and pressure plate 53 slides along guide rod 54 through pull rod 52. Pressing push switch 59 triggers pulse backwash pump 55 to backwash and clear through outlet pipe 57. At the same time, depth adjustment motor 63 drives third screw 64 to lower lifting plate 65 to the bottom of pipe along depth adjustment bracket 62. The crust-breaking motor 66 starts and drives the drive gear 67 to rotate. Through the meshing of the drive gear 67 and the active gear 68, the active gear 68 drives the crushing tube 69 to rotate, breaking up the crusted sludge. The sludge pump 613 pumps the uniform sludge slurry to the detection chamber 612 through the sludge connecting pipe 611. The detection chamber 612 has a built-in distance sensor that triggers the pump to stop to ensure that the sample volume meets the standard. The micro reagent chamber in the chamber automatically injects dilute nitric acid-hydrogen peroxide digestion solution to destroy the organic matter in the sludge and convert the bound heavy metals into free ions. The detection chamber has a glassy carbon working electrode, a reference electrode, and a platinum auxiliary electrode. In the enrichment stage, a constant voltage relative to the reference electrode is applied to the working electrode for 2 minutes. The free heavy metal ions are deposited on the electrode surface as metal elements.During the dissolution stage, the voltage increases to reach a specific heavy metal dissolution potential. The deposited metal is oxidized into ions, releasing electrons. The auxiliary electrode conducts current to maintain system stability. Subsequently, the signal acquisition module records the "voltage-current" dissolution curve. Different dissolution peaks in the curve correspond to different heavy metal types, and the peak current magnitude is positively correlated with the concentration. The control system calls a preset standard curve to calculate the heavy metal concentration in the sludge. The results, along with data obtained from the water quality analyzer 413, are uploaded to a remote platform via the Internet of Things and simultaneously displayed on the local terminal. An alarm is triggered when the concentration exceeds the standard, providing data support for pollution source tracing.

[0024] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. An automated drainage network sampling and analysis device based on the Internet of Things, characterized in that: include A multi-dimensional moving mechanism, comprising a vertical depth adjustment component and a horizontal depth adjustment component, wherein the vertical depth adjustment component comprises an installation component (11) fixedly connected to the inner wall of the drainage pipe network, and a first motor (12) is fixedly connected to the top of the installation component (11); the horizontal depth adjustment component comprises a first adjustment component and a second adjustment component, wherein a second mounting plate (26) is fixedly connected to the surface of the second adjustment component, and the top of the first adjustment component is fixedly connected to the bottom of the second mounting bracket (15); A multi-dimensional water sampling mechanism, comprising a water sampling component and a silt sampling component, wherein the water sampling component comprises a sampling point adjustment component and a sampling component, the sampling point adjustment component comprises an adjustment motor (31), the surface of the adjustment motor (31) is fixedly connected to the surface of the second mounting plate (26), and one end of the shaft of the adjustment motor (31) is fixedly connected to an adjustment disc (32), and the silt sampling component comprises a second snap-fit ​​component (61) and a depth adjustment bracket (62), the surface of the depth adjustment bracket (62) is fixedly connected to the bottom of the second snap-fit ​​component (61).

2. The IoT-based automated drainage network sampling and analysis device according to claim 1, characterized in that: One end of the shaft of the first motor (12) is fixedly connected to a first screw (13), and the surface of the first screw (13) is threadedly connected to a second mounting bracket (15). The bottom of the mounting component (11) is fixedly connected to a first mounting bracket (14), and the interior of the second mounting bracket (15) is slidably connected to the surface of the first mounting bracket (14).

3. The IoT-based automated drainage network sampling and analysis device according to claim 1, characterized in that; The first adjustment component includes a first mounting plate (21), the surface of the first mounting plate (21) is fixedly connected to the bottom of the second mounting bracket (15), a second motor (22) is fixedly connected to the surface of the first mounting plate (21), a second screw (23) is fixedly connected to one end of the shaft of the second motor (22), a slider (24) is threadedly connected to the surface of the second screw (23), a slide rail (25) is slidably connected inside the slider (24), the bottom of the slide rail (25) is fixedly connected to the top of the first mounting plate (21), the structure of the first adjustment component is the same as that of the second adjustment component, and the second adjustment component is mounted on the slider (24).

4. The IoT-based automated drainage network sampling and analysis device according to claim 1, characterized in that: The sampling point adjustment component also includes a vortex-shaped protrusion (33), one side of which is fixedly connected to one side of the adjustment disk (32), and the other side of the second mounting plate (26) is fixedly connected to a mounting box (34). An adjustment push rod (35) is slidably connected to the inner wall of the mounting box (34). A drive block (36) is fixedly connected to one end of the adjustment push rod (35). The surface of the drive block (36) is slidably connected to the surface of the vortex-shaped protrusion (33). A first locking block (37) is fixedly connected to the upper end of the adjustment push rod (35). Multiple sets of adjustment push rods (35) are arranged in a circumferential array.

5. The IoT-based automated drainage network sampling and analysis device according to claim 1, characterized in that: The sampling component includes a first snap-fit ​​component, the inner wall of which overlaps with the surface of a first snap-fit ​​block (37). The first snap-fit ​​component includes a snap-fit ​​sleeve (41), a top rod (42) is slidably connected inside the snap-fit ​​sleeve (41), a top block (43) is fixedly connected to one end of the top rod (42), the surface of the top block (43) engages with the surface of the first snap-fit ​​block (37), a spring (44) overlaps with one end of the top block (43) near the top rod (42), the other end of the spring (44) overlaps with the inside of the snap-fit ​​sleeve (41), and a sampling box (45) is fixedly connected to the top of the snap-fit ​​sleeve (41).

6. The IoT-based automated drainage network sampling and analysis device according to claim 5, characterized in that: A sampling chamber (46) is provided on one side of the inner cavity of the sampling box (45). The inner wall of the sampling chamber (46) is fixedly connected to the inner wall of the debris filter plate (47). A water sampling branch pipe (48) is provided on one side of the lower end of the inner cavity of the sampling chamber (46). A sampling pump (49) is provided inside the end of the water sampling branch pipe (48) away from the sampling chamber (46). A solenoid valve (410) is provided at the end of the water sampling branch pipe (48). The end is connected to an annular water sampling main pipe (411), and the lower end of the annular water sampling main pipe (411) is provided with a connecting pipe (412). One end of the connecting pipe (412) is connected to the water inlet of the water quality tester (413). The upper end of the annular water sampling main pipe (411) is provided with an external pipe (414) with a built-in solenoid valve. One end of the external pipe (414) is connected to the heat pump air outlet pipe, and the other end of the external pipe (414) is connected to the pure water supply pipe.

7. The IoT-based automated drainage network sampling and analysis device according to claim 5, characterized in that: An anti-clogging unit is fixedly connected to the other side of the inner cavity of the sampling box (45). The anti-clogging unit includes a water pressure test rubber sheet (51) and a pull rod (52). The water pressure test rubber sheet (51) is set on the other side of the lower end of the inner cavity of the sampling chamber (46). One end of the pull rod (52) is fixedly connected to the surface of the water pressure test rubber sheet (51). The other end of the pull rod (52) is fixedly connected to a pressure plate (53). The two ends of the pressure plate (53) are slidably connected to guide rods (54). The end of the guide rod (54) is fixedly connected to the inner wall of the sampling box (45).

8. The IoT-based automated drainage network sampling and analysis device according to claim 7, characterized in that: The anti-clogging unit also includes a pulse backflush pump (55), with an inlet pipe (56) on the top of the pulse backflush pump (55) and an outlet pipe (57) on the surface of the pulse backflush pump (55). One end of the outlet pipe (57) is connected to the lower end of the inner cavity of the sampling chamber (46). A switch mounting bracket (58) is fixedly connected to the surface of the pulse backflush pump (55), and a push-button switch (59) electrically connected to the pulse backflush pump (55) is fixedly connected to the surface of the switch mounting bracket (58). The position of the push-button switch (59) corresponds to the pressure plate (53).

9. The IoT-based automated drainage network sampling and analysis device according to claim 1, characterized in that: The sludge sampling assembly also includes a depth adjustment motor (63), the surface of which is fixedly connected to the inner wall of the depth adjustment bracket (62), a lifting plate (65) is slidably connected to the surface of the depth adjustment bracket (62), a third screw (64) is threadedly connected to the inside of the lifting plate (65), the upper end of the third screw (64) is fixedly connected to the output end of the depth adjustment motor (63), the structure of the second snap-fit ​​(61) is the same as that of the first snap-fit, and the inner wall of the second snap-fit ​​(61) overlaps with the surface snap-fit ​​block of the mounting box (34).

10. The IoT-based automated drainage network sampling and analysis device according to claim 9, characterized in that: A shell-crushing motor (66) is fixedly connected to the surface of the lifting plate (65). A drive gear (67) is fixedly connected to one end of the shaft of the shell-crushing motor (66). A drive gear (68) meshes with the surface of the drive gear (67). A crushing pipe (69) is fixedly connected to the bottom of the drive gear (68). The surface of the crushing pipe (69) is rotatably connected to the interior of the lifting plate (65). An extraction pipe (610) is rotatably connected to the interior of the crushing pipe (69). A sludge connecting pipe (611) is provided at the upper end of the extraction pipe (610). One end of the sludge connecting pipe (611) is connected to a detection chamber (612) with an internal electrode. One end of the detection chamber (612) is connected to a sludge pump (613) through a pipe.

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