Water quality detection system and equipment for drainage pipe network

Abstract

The invention provides a drainage pipe network water quality detection system and equipment, and the system comprises a cloud operation platform and a network point detection module, the cloud operation platform receives detection information from the network point detection module, compares the received detection information with a cloud database, and judges whether each water quality index exceeds the standard or not. If the water quality index exceeds the standard, the water quality is judged to be polluted, and the network point detection module comprises a data transmission module and a detection execution module; the detection execution module comprises a detection unit, a network point sampling module and an execution control module; each detection unit comprises a flow detector, a nitrite tester, a dissolved oxygen detector and an ammonia nitrogen analyzer, and the plurality of detection units are used for detecting the water quality at the detection network points respectively. According to the invention, the cloud operation platform analyzes and processes the detection data of the plurality of drainage pipe network points, timely finds the range of the pollution source, achieves the timely processing of the pollution source, and improves the efficiency of rapidly finding and processing the pollution source.

Description

Technical Field

[0001] This invention relates to the field of drainage network water quality testing technology, and more specifically, to drainage network water quality testing systems and equipment. Background Technology

[0002] Urban drainage systems play a vital role in collecting and treating urban sewage and rainwater. They are essential municipal infrastructure for ensuring people's lives, the urban environment, and urban safety. The safe and effective operation of urban drainage networks is also crucial for guaranteeing the quality of urban water environment. In recent years, the situation of urban water pollution in my country remains severe, and problems in the operation of urban drainage networks have become increasingly prominent. Strengthening the information technology construction of urban drainage networks is an important technical means to solve related problems.

[0003] Most of the existing monitoring equipment in drainage pipe networks is single-point monitoring. The data detected by numerous monitoring devices cannot be effectively analyzed from multiple test results, making it impossible to determine the location of pollution sources in the drainage pipe network as a whole. Consequently, the drainage pipe network cannot accurately locate the pollution source and carry out treatment, affecting the accurate and rapid treatment of water quality in the drainage pipe network.

[0004] For example, the Chinese invention patent (application number: 202210525821.1) discloses a "Drainage Pipeline Network Diagnosis and Management Method," which, according to its specification, involves the field of drainage pipeline network technology and includes the following steps: S1, Information Technology Department; S2, Surgery Department; S3, Internal Medicine Department; S4, Rehabilitation Department. This drainage pipeline network diagnosis and management method can be applied to the pipeline network construction system, combining the perspective of human body examination in hospitals. Pipeline network data collection is equivalent to querying patient information in the Information Technology Department before human body examination; pipeline network data analysis is equivalent to the patient's surgical signs detection; pipeline network monitoring and diagnosis is equivalent to the patient's internal medicine examination; and pipeline network operation and maintenance data analysis is equivalent to the patient's rehabilitation stage in the Rehabilitation Department after medical treatment. By comprehensively integrating with various departments of the pipeline network hospital from multiple perspectives of the sensory and nervous systems, it improves diagnostic efficiency and quality. Through online detection and model analysis of water quality characteristic factors, it assesses the operational status of the drainage pipeline network, supports click-to-locate, attribute viewing, and data export, and enables rapid resolution of pipeline network problems. The aforementioned patent can corroborate the deficiencies of existing technologies.

[0005] Therefore, we have made improvements and proposed a drainage network water quality testing system and equipment. Summary of the Invention

[0006] The purpose of this invention is to address the problem that most existing monitoring devices in drainage pipe networks are single-point monitoring devices. The data detected by numerous monitoring devices cannot be effectively analyzed from multiple detection results, making it impossible to determine the location of pollution sources in the drainage pipe network as a whole. Consequently, the drainage pipe network cannot accurately locate the pollution source and carry out treatment, affecting the accurate and rapid treatment of water quality in the drainage pipe network.

[0007] To achieve the above-mentioned objectives, the present invention provides the following drainage network water quality testing system to improve the aforementioned problems.

[0008] The application is as follows: The drainage network water quality testing system includes a cloud operation platform and a network point testing module. The cloud operation platform receives the testing information from the network point testing module and compares the received testing information with the cloud database to determine whether various water quality indicators exceed the standards. If the water quality indicators exceed the standards, it is determined that the water quality has been polluted. The network point testing module includes a data transmission module and a testing execution module. The detection execution module includes a detection unit, a sampling module at the network point, and an execution control module; the detection unit includes a flow meter, a nitrite meter, a dissolved oxygen meter, and an ammonia nitrogen analyzer, and multiple detection units respectively detect the water quality at the detection network point.

[0009] As a preferred technical solution of this application, the data transmission module transmits the various water quality test results detected by the detection unit to the cloud operation platform, and the data transmission module is set up at each detection site.

[0010] As a preferred technical solution of this application, the execution control module includes a communication module and a sampling control module; the communication module is used to receive control signals from the cloud operation platform, and the sampling control module is used to control the network sampling module to sample within the testing network and transport the test samples to the testing unit location.

[0011] As a preferred technical solution of this application, the sampling module is installed inside the sewer well at the intersection of drainage pipes. The cloud operation platform also includes a traceability system, which is used to compare the data transmitted back by the sampling module. When pollution is detected, the traceability system traces the detection data of the upstream sampling module. When the detection data of the upstream sampling module is normal, it is determined that the pollution source is located between the upstream sampling module and the sampling module. When the detection data of the upstream sampling module shows pollution, the traceability continues to the next sampling module on the pipeline.

[0012] As a preferred technical solution of this application, the sampling module is installed inside the sewer well at the intersection of drainage pipes. The sampling module has multiple sampling probes that are inserted into drainage pipes from different sources to perform sampling and testing.

[0013] The drainage network water quality testing equipment includes a ring-shaped rotating support platform and a sampling frame. The upper end of the sampling frame is mounted on the rotating support platform, and a sampling component is slidably mounted on the sampling frame. A lifting mechanism for driving the sampling component to move up and down is fixedly installed inside the sampling frame. The rotating support platform is provided with an annular toothed row below it, and the sampling frame is provided with a rotary motor for driving the sampling frame to rotate on the rotating support platform. The lifting mechanism includes a threaded rod rotatably installed inside the sampling frame and a lifting block threadedly installed on the threaded rod. The sampling frame is equipped with a lifting motor for driving the threaded rod to rotate, and the two ends of the lifting block are respectively equipped with support rods for installing sampling components.

[0014] As a preferred technical solution of this application, the sampling frame includes a rectangular frame body, with sliding through holes on both sides of the frame body, and a first toothed row and a second toothed row respectively on both sides of the frame body.

[0015] As a preferred technical solution of this application, the middle part of the sampling assembly is rotatably connected to the support rod via a connecting rod. A slider is provided at the end of the connecting rod away from the sampling barrel. A guide plate is provided at the bottom of the frame to guide and limit the rotation direction of the slider, thereby limiting the rotation direction of the sampling barrel. Two guide plates clamp a slider together. The upper end of the guide plate extends below the second tooth row. The sampling barrel can maintain its orientation angle when cleaning one end of the manifold by moving up and down. The connecting rod is provided with gears for meshing with the first and second tooth rows. The sampling assembly includes a sampling barrel, and a sampling tube is provided at the opening of the sampling barrel.

[0016] As a preferred technical solution of this application, a piston is slidably installed inside the sampling barrel. The end of the piston away from the sampling tube is provided with a telescopic component for driving the piston to move. The telescopic component includes a screw and a meshing sleeve. One end of the screw is provided with a sampling motor (the sampling motor is a waterproof motor), and the sampling motor is fixedly installed on the sampling barrel. One end of the screw extends into the sampling barrel and is rotatably connected to the sampling barrel. The part of the screw that extends into the sampling barrel is threadedly connected to the meshing sleeve, and the meshing sleeve is fixedly installed on the piston.

[0017] As a preferred technical solution of this application, the sampling tube is composed of multiple arc-shaped plates, and the piston is provided with a conical block. When the conical block does not squeeze the limiting plate, the multiple arc-shaped plates move closer to each other under the action of the elastic element, thereby forming a complete cylindrical structure (i.e., sampling tube). When sampling the water source at the inlet, the sampling tube can be inserted into the inlet for sampling as the angle of the sampling bucket is adjusted. One end of each of the multiple arc-shaped plates is rotatably connected to the sampling bucket. Each arc-shaped plate has a limiting plate that moves in conjunction with the conical block on its inner circumference. Each arc-shaped plate has a wedge, and each wedge has a brush.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: 1. To address the problem that most existing monitoring devices in drainage pipe networks are single-point monitoring devices, and the data detected by numerous monitoring devices cannot be effectively analyzed to determine the location of pollution sources in the drainage pipe network as a whole, this invention sets up a network point detection module at the intersection of the drainage pipe network. The detection structure of the network point detection module is transmitted to a cloud operation platform through a data transmission module. The cloud operation platform analyzes and processes the detection data from multiple drainage pipe network points, promptly locates the range of pollution sources, and enables timely treatment of pollution sources, thus improving the efficiency of rapid detection and treatment of pollution sources. 2. To address the problem in existing technologies where it is inconvenient to determine the source of sewage in sewer wells where multiple water sources converge, this application proposes a sampling frame installed inside the sewer well. The lower end of the sampling frame extends into the sewer well, and the sampling component can easily slide up and down inside the sewer well, allowing it to reach into the inlet of the sewer well and sample the water source inside two adjacent inlets. This makes it easier to determine the source of polluted water after sampling and testing, and allows for a more accurate identification of the source of water pollution. 3. By inserting a sampling tube into the water inlet to take samples, it is possible to separate and sample water sources from different sources, which solves the problem in the existing technology that it is inconvenient to determine the source of sewage in a sewer well where multiple water sources converge. 4. By using brushes installed on the inner wall of the arc-shaped plate, impurities in the water source are filtered out when sampling different water sources, preventing impurities from entering the inner wall of the sampling bucket; when cleaning the grid at one end of the manifold, the brushes move up and down on the grid surface to remove the impurities attached to the grid surface, preventing these impurities from clogging the inlet of the manifold and affecting the drainage efficiency of the manifold.

[0019] 5. By setting a gear on the connecting rod on the side of the sampling bucket, and setting a first gear row and a second gear row on the frame that can mesh with the gear, the orientation angle of the sampling bucket can be easily adjusted when the first gear row or the second gear row meshes with the gear, thereby making it easier to detect the sample inside the sampling bucket or to head the sampling bucket toward the inlet for sampling; improving the accuracy of sampling and the convenience of sample extraction. Attached Figure Description

[0020] Figure 1 A schematic diagram illustrating the logical relationship of the drainage network water quality testing system provided in this application; Figure 2A schematic diagram of the structure of the drainage network water quality testing equipment provided in this application installed inside the sewer well; Figure 3 A side view of the drainage network water quality testing equipment provided in this application; Figure 4 A schematic diagram of the overall structure of the drainage network water quality testing equipment provided in this application; Figure 5 The drainage network water quality testing equipment provided in this application Figure 4 A magnified schematic diagram of the structure at point A; Figure 6 A schematic diagram of the overall structure of the sampling tube of the drainage network water quality testing equipment provided in this application in the open state; Figure 7 The drainage network water quality testing equipment provided in this application Figure 6 A magnified schematic diagram of the structure at point B; Figure 8 A half-section three-dimensional structural diagram of the sampling bucket of the drainage network water quality testing equipment provided in this application.

[0021] The image shows: 1. Sewer well; 101. Inlet; 11. Manifold; 2. Rotating support platform; 21. Annular gear rack; 22. Rotary motor; 3. Sampling frame; 301. Sliding through hole; 31. Frame body; 32. First gear rack; 33. Second gear rack; 34. Gear; 4. Lifting mechanism; 41. Threaded rod; 42. Lifting motor; 43. Lifting block; 44. Support rod; 45. Guide plate; 5. Sampling assembly; 51. Sampling bucket; 511. Piston; 512. Conical block; 52. Sampling motor; 521. Screw; 522. Engaging sleeve; 53. Sampling tube; 531. Limiting plate; 532. Elastic element; 533. Arc plate; 54. Connecting rod; 55. Wedge block. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0023] As described in the background section, most of the existing monitoring equipment in drainage pipe networks is single-point monitoring. The data detected by numerous monitoring devices cannot be effectively analyzed from multiple detection results, making it impossible to determine the location of pollution sources in the drainage pipe network as a whole. Consequently, the drainage pipe network cannot accurately locate the pollution source and carry out treatment, affecting the accurate and rapid treatment of water quality in the drainage pipe network.

[0024] To address this technical problem, the present invention provides a drainage network water quality testing system and equipment, which is applied to the water quality testing of urban drainage networks.

[0025] For details, please refer to Figure 1 The drainage network water quality testing system includes a cloud operation platform and a network testing module. The cloud operation platform receives the testing information from the network testing module and compares the received testing information with the cloud database to determine whether various water quality indicators exceed the standards. If the water quality indicators exceed the standards, it is determined that the water quality has been polluted. The network testing module includes a data transmission module and a testing execution module. The detection execution module includes a detection unit, a sampling module at the network point, and an execution control module; the detection unit includes a flow meter, a nitrite meter, a dissolved oxygen meter, and an ammonia nitrogen analyzer, and multiple detection units respectively detect the water quality at the detection network point.

[0026] As a preferred technical solution of this application, the data transmission module transmits the various water quality test results detected by the detection unit to the cloud operation platform, and the data transmission module is set up at each detection site.

[0027] As a preferred technical solution of this application, the execution control module includes a communication module and a sampling control module; the communication module is used to receive control signals from the cloud operation platform, and the sampling control module is used to control the network sampling module to sample within the testing network and transport the test samples to the testing unit location.

[0028] As a preferred technical solution of this application, the sampling module is installed inside the sewer well at the intersection of drainage pipes. The cloud operation platform also includes a traceability system, which is used to compare the data transmitted back by the sampling module. When pollution is detected, the traceability system traces the detection data of the upstream sampling module. When the detection data of the upstream sampling module is normal, it is determined that the pollution source is located between the upstream sampling module and the sampling module. When the detection data of the upstream sampling module shows pollution, the traceability continues to the next sampling module on the pipeline.

[0029] As a preferred technical solution of this application, the sampling module is installed inside the sewer well at the intersection of drainage pipes. The sampling module has multiple sampling probes that are inserted into drainage pipes from different sources to perform sampling and testing.

[0030] The drainage network water quality detection system provided by this invention addresses the problem that data from numerous monitoring devices cannot be effectively analyzed to determine the location of pollution sources within the drainage network as a whole, thus hindering accurate identification and treatment of pollution sources and impacting the accurate and rapid treatment of water quality in the drainage network. This invention addresses this issue by setting up network point detection modules at the intersections of the drainage network. The detection data from these modules is transmitted to a cloud-based operating platform via a data transmission module. The cloud platform analyzes and processes the detection data from multiple drainage network points, promptly locating the extent of pollution sources and facilitating rapid and timely treatment, thereby improving the efficiency of rapid pollution source detection and treatment.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] Example 1 Please refer to Figure 2-6 The drainage network water quality testing equipment includes a ring-shaped rotating support platform 2 and a sampling frame 3. The upper end of the sampling frame 3 is installed on the rotating support platform 2. A sampling component 5 is slidably installed on the sampling frame 3. A lifting mechanism 4 for driving the sampling component 5 to move up and down is fixedly installed inside the sampling frame 3. A ring-shaped toothed rack 21 is provided below the rotating support platform 2, and a rotary motor 22 is provided on the sampling frame 3 to drive the sampling frame 3 to rotate on the rotating support platform 2. The lifting mechanism 4 includes a threaded rod 41 rotatably installed inside the sampling frame 3 and a lifting block 43 threadedly installed on the threaded rod 41. The sampling frame 3 is provided with a lifting motor 42 for driving the threaded rod 41 to rotate. The two ends of the lifting block 43 are respectively provided with support rods 44 for installing the sampling components 5. The threaded rod 41 is driven to rotate by the lifting motor 42, and the threaded rod 41 drives the lifting block 43 installed between the frame bodies 31 to move downward. As the lifting block 43 moves downward, it will drive the sampling barrels 51 installed at both ends of the lifting block 43 to move downward. When the two sampling barrels 51 move to the position of the second gear row 33, the gears 34 on the sides of the two sampling barrels 51 mesh with the second gear row 33 respectively, so that the bottom of the sampling barrels 51 tilts towards the inlet 101, so that the sampling tubes 53 below the sampling barrels 51 can be inserted into the two inlet 101 respectively.

[0035] In this invention, by setting a sampling frame 3 inside the sewer well 1, with the lower end of the sampling frame 3 extending into the sewer well 1, the sampling component 5 can easily slide up and down inside the sewer well 1, allowing the sampling component 5 to extend into the inlet 101 of the sewer well 1 to sample the water source inside two adjacent inlets 101 inside the sewer well 1. After sampling and testing, it is more convenient to determine the source of polluted water and to more accurately determine the source of water pollution.

[0036] It should be noted that during the testing process, the test sample extracted by the sampling component 5 can be analyzed and tested manually, or multiple detection probes can be set above the sampling rack 3. After the sampling component 5 takes a sample, the test sample is transported to the sampling rack 3, and then multiple detection probes are inserted into the sampling component 5 in sequence to achieve the purpose of detecting contamination in the test sample.

[0037] Example 2 The drainage network water quality testing equipment provided in Example 1 has been further optimized. For details, please refer to... Figure 2-8 The sampling frame 3 includes a rectangular frame 31. Sliding through holes 301 are provided on both sides of the frame 31. A first toothed row 32 and a second toothed row 33 are respectively provided on both sides of the frame 31. The first toothed row 32 is located in the upper section of the frame 31, and the second toothed row 33 is located in the lower section of the frame 31. The second toothed row 33 is located at the height of the inlet 101 of the sewer well 1. By providing sliding through holes 301 on both sides of the frame 31, the sampling component 5 can be locked on both sides when it slides up and down, so that the sampling component 5 can slide up and down smoothly.

[0038] Example 3 The drainage network water quality testing equipment provided in Example 1 or 2 is further optimized, specifically, as follows: Figure 4 , Figure 6As shown, the middle part of the sampling assembly 5 is rotatably connected to the support rod 44 via a connecting rod 54. The connecting rod 54 is provided with a gear 34 for meshing with the first gear row 32 and the second gear row 33. The sampling assembly 5 includes a sampling bucket 51, and a sampling tube 53 is provided at the opening of the sampling bucket 51. By providing a sampling tube 53 at the opening of the sampling bucket 51, the sampling port of the sampling bucket 51 can be extended to a deeper position in the inlet 101, and sampling can be performed at a deeper position, avoiding the intake of test samples after the two water sources have mixed.

[0039] In addition, a slider is provided at the end of the connecting rod 54 away from the sampling barrel 51. A guide plate 45 is provided at the bottom of the frame 31 to guide and limit the rotation direction of the slider, thereby limiting the rotation direction of the sampling barrel 51. The two guide plates 45 clamp a slider together. The upper end of the guide plate 45 extends below the second tooth row 33. The sampling barrel 51 can maintain its orientation angle when it moves up and down to clean one end of the manifold 11.

[0040] In this invention, during use, by setting a sampling tube 53 at the opening of the sampling bucket 51, when the second toothed row 33 drives the sampling bucket 51 to rotate toward the inlet 101 of the sewer well 1, the sampling tube 53 can extend into the inlet 101 to accurately sample different water sources.

[0041] A piston 511 is slidably installed inside the sampling barrel 51. The end of the piston 511 away from the sampling tube 53 is provided with a telescopic component for driving the piston 511 to move. In actual use, the telescopic component includes a screw 521 and a meshing sleeve 522. One end of the screw 521 is provided with a sampling motor 52 (the sampling motor 52 is a waterproof motor), and the sampling motor 52 is fixedly installed on the sampling barrel 51. One end of the screw 521 extends into the sampling barrel 51 and is rotatably connected to the sampling barrel 51. The part of the screw 521 that extends into the sampling barrel 51 is threadedly connected to the meshing sleeve 522, and the meshing sleeve 522 is fixedly installed on the piston 511.

[0042] Example 4 The drainage network water quality testing equipment provided in Example 1, 2, or 3 is further optimized, specifically, as follows: Figure 8As shown, the sampling tube 53 is composed of multiple arc-shaped plates 533, and a conical block 512 is provided on the piston 511. One end of each of the multiple arc-shaped plates 533 is rotatably connected to the sampling barrel 51. Each arc-shaped plate 533 has a limiting plate 531 on its inner circumferential surface that moves in conjunction with the conical block 512. During use, an elastic element 532 is provided between the two limiting plates 531 on opposite sides to pull the limiting plate 531 back to its original position. The elastic element 532 can be a spring. Each arc-shaped plate 533 is provided with a wedge 55, and each wedge 55 is provided with a brush. (In addition, when multiple arc-shaped plates 533 constitute the sampling tube 53, the brush forms a filter layer at the opening of the sampling tube 53, which can prevent particulate matter in the water flow from entering the sampling barrel 51 during the sampling process.)

[0043] It should be noted that when the conical block 512 does not compress the limiting plate 531, the multiple arc-shaped plates 533 approach and converge with each other under the action of the elastic element 532, thereby forming a complete cylindrical structure (i.e., sampling tube 53). When sampling the water source at the inlet 101, the sampling tube 53 can be inserted into the inlet 101 for sampling as the angle of the sampling bucket 51 is adjusted. (In the initial state, the sampling bucket 51 faces downward under the action of gravity. The orientation of the sampling bucket 51 will only change when the gear 34 on the connecting rod 54 meshes with the first gear row 32 or the second gear row 33 respectively.)

[0044] The process of using the drainage network water quality testing equipment provided by this invention is as follows: Sampling Process: When sampling water from the two inlets 101 inside the sewer well 1 using this invention, the lifting motor 42 drives the threaded rod 41 to rotate. The threaded rod 41 drives the lifting block 43 installed between the frame bodies 31 to move downwards. As the lifting block 43 moves downwards, it drives the sampling buckets 51 installed at both ends of the lifting block 43 to move downwards. When the two sampling buckets 51 move to the position of the second gear rack 33, the gears 34 on the sides of the two sampling buckets 51 mesh with the second gear rack 33 respectively, causing the bottom of the sampling buckets 51 to tilt towards the inlet 101, so that the sampling tubes 53 below the sampling buckets 51 can extend into the two inlets 101 respectively. Afterwards, the sampling motor 52 rotates, driving the screw 521 to rotate. The screw 521 drives the piston 511 to retract, sucking the water sample into the sampling barrel 51. After sampling, the lifting motor 42 rotates in the opposite direction and drives the threaded rod 41 to rotate. The threaded rod 41 drives the sampling barrel 51 to move upward. When the sampling barrel 51 moves to the position where the first toothed row 32 is located at the upper end of the frame 31, the gear 34 on the side of the sampling barrel 51 meshes with the first toothed row 32. The first toothed row 32 drives the sampling barrel 51 to rotate, so that the end with the sampling tube 53 rotates to the top of the sampling barrel 51. Then, the detection probe can be easily inserted into the sampling tube 53 to detect samples from two different water sources.

[0045] During the cleaning process, the sampling frame 3 is rotated by the rotary motor 22, moving it above the manifold 11. Simultaneously, the sampling motor 52 is driven, which in turn drives the piston 511 to move towards the outlet of the sampling barrel 51. At this time, the conical block 512 can push the limiting plate 531, causing the ends of the multiple arc plates 533 away from the sampling barrel 51 to open, exposing the brushes set on the inner wall of the arc plates 533. Then, the lifting motor 42 drives the sampling barrel 51 to move downward to the side of the manifold 11. As the lifting motor 42 drives the sampling barrel 51 to move up and down, the brushes on the wedge block 55 can clean the grid at the inlet of the manifold 11, preventing blockage at the inlet of the manifold 11.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A drainage network water quality testing system, characterized in that, It includes a cloud operation platform and a site detection module. The cloud operation platform receives detection information from the site detection module and compares the received detection information with the cloud database to determine whether various water quality indicators exceed the standards. If the water quality indicators exceed the standards, it is determined that the water quality has been polluted. The site detection module includes a data transmission module and a detection execution module. The detection execution module includes a detection unit, a sampling module at the network point, and an execution control module; the detection unit includes a flow meter, a nitrite meter, a dissolved oxygen meter, and an ammonia nitrogen analyzer, and multiple detection units respectively detect the water quality at the detection network point.

2. The drainage network water quality testing system according to claim 1, characterized in that, The data transmission module transmits the various water quality test results detected by the detection unit to the cloud operation platform. The data transmission module is set up at each detection site.

3. The drainage network water quality testing system according to claim 1, characterized in that, The execution control module includes a communication module and a sampling control module; the communication module is used to receive control signals from the cloud operation platform, and the sampling control module is used to control the sampling module at the testing site to take samples and transport the test samples to the testing unit location.

4. The drainage network water quality testing system according to claim 1, characterized in that, The sampling module is installed inside the manhole at the intersection of drainage pipes. The cloud operation platform also includes a traceability system, which compares the data transmitted back by the sampling module. When pollution is detected, the traceability system traces the detection data of the upstream sampling point in the pipeline. When the detection data of the upstream sampling point is normal, it is determined that the pollution source is located between the upstream sampling point and the current sampling point. When the detection data of the upstream sampling point shows pollution, the system continues to trace the sampling point on the pipeline.

5. The drainage network water quality testing system according to claim 1, characterized in that, The sampling module is installed inside the manhole at the intersection of drainage pipes. The sampling module has multiple sampling probes that extend into drainage pipes from different sources to collect samples for testing.

6. A drainage network water quality testing device, using the drainage network water quality testing system as described in claim 5, characterized in that, It includes a ring-shaped rotating support platform (2) and a sampling frame (3). The upper end of the sampling frame (3) is mounted on the rotating support platform (2). A sampling component (5) is slidably mounted on the sampling frame (3). A lifting mechanism (4) for driving the sampling component (5) to move up and down is fixedly installed inside the sampling frame (3). The rotating support platform (2) is provided with an annular toothed rack (21) below it, and the sampling frame (3) is provided with a rotary motor (22) for driving the sampling frame (3) to rotate on the rotating support platform (2). The lifting mechanism (4) includes a threaded rod (41) rotatably installed inside the sampling frame (3) and a lifting block (43) threadedly installed on the threaded rod (41). The sampling frame (3) is provided with a lifting motor (42) for driving the threaded rod (41) to rotate. The two ends of the lifting block (43) are respectively provided with support rods (44) for installing the sampling component (5).

7. The drainage network water quality testing equipment according to claim 6, characterized in that, The sampling frame (3) includes a rectangular frame (31), with sliding through holes (301) on both sides of the frame (31), and a first toothed row (32) and a second toothed row (33) on both sides of the frame (31).

8. The drainage network water quality testing equipment according to claim 7, characterized in that, The middle part of the sampling assembly (5) is rotatably connected to the support rod (44) via a connecting rod (54). The connecting rod (54) is provided with a gear (34) for meshing with the first gear row (32) and the second gear row (33). The sampling assembly (5) includes a sampling bucket (51), and a sampling tube (53) is provided at the opening of the sampling bucket (51).

9. The drainage network water quality testing equipment according to claim 8, characterized in that, A piston (511) is slidably installed inside the sampling barrel (51), and a telescopic component is provided at the end of the piston (511) away from the sampling tube (53) to drive the piston (511) to move.

10. The drainage network water quality testing equipment according to claim 9, characterized in that, The sampling tube (53) is composed of multiple arc-shaped plates (533), and the piston (511) is provided with a conical block (512). One end of each of the multiple arc-shaped plates (533) is rotatably connected to the sampling barrel (51). Each arc-shaped plate (533) has a limiting plate (531) on its inner circumference that moves in coordination with the conical block (512). Each arc-shaped plate (533) is provided with a wedge (55), and each wedge (55) is provided with a brush.

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