A water quality detection device and detection method for drainage network

Abstract

The present invention discloses a water quality detection device and detection method for a drainage network, belonging to the field of water quality detection. A water quality detection device for a drainage network includes a shell and a detection probe, and also includes: a shunt pipe fixedly installed on the top of the shell, wherein a guide plate is installed inside the shell through a first rotating shaft, and two symmetrically arranged first baffles are installed inside the shell through a second rotating shaft, and a first torsion spring is fixedly installed between the second rotating shaft and the inner wall of the shell; a fence fixedly connected to the inside of the shell, wherein a filter plate is installed inside the fence, and the detection probe is arranged between the filter plate and the fence; the present invention guides the water flow by rotating the guide plate, and then the water falls on the first baffle to rotate it and tighten the first torsion spring, and the elastic force of the first torsion spring and the guidance of the guide plate are used to slow down the flow rate, and the liquid impurities are filtered through the filter plate, thereby improving the detection accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection, and in particular to a water quality detection device and a detection method for a drainage network. Background Art

[0002] The urban drainage system undertakes the important function of collecting and treating urban sewage and rainwater. It is an important municipal infrastructure to protect people's lives, urban environment and urban safety. The safe and effective operation of urban drainage pipe networks is also an important guarantee for the quality of urban water environment. In recent years, the situation of urban water pollution in my country remains severe, and the problems in the operation of urban drainage pipe networks have become increasingly prominent. The drainage pipe network is an important part of urban infrastructure, usually carrying the discharge tasks of rainwater, sewage, etc. Ensuring the monitoring of drainage pipe network water quality is crucial for environmental protection and public health.

[0003] Traditional water quality monitoring of drainage networks does not have a stable water quality monitoring environment. The flow rate of the measured liquid and impurities in the measured liquid (such as stones, garbage, etc.) will affect the accuracy of water quality monitoring, and the acquired monitoring data has poor accuracy. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that in the prior art, the water quality monitoring of traditional drainage pipe networks does not have a stable water quality monitoring environment, the flow rate of the measured liquid and the impurities in the measured liquid will affect the accuracy of water quality monitoring, and the accuracy of the acquired monitoring data is poor. A water quality detection device and detection method for drainage pipe networks are proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A water quality detection device for a drainage network comprises a shell and a detection probe, and also includes: a shunt pipe fixedly mounted on the top of the shell, wherein a guide plate is rotatably mounted inside the shell via a first rotating shaft, two symmetrically arranged first baffles are rotatably mounted inside the shell via a second rotating shaft, a first torsion spring is fixedly mounted between the second rotating shaft and the inner wall of the shell; a fence fixedly connected to the inside of the shell, wherein a filter plate is mounted inside the fence, and the detection probe is arranged between the filter plate and the fence.

[0007] In order to drive the two second baffles to approach each other and further slow down the flow rate of the liquid, preferably, two symmetrically arranged hollow plates are fixedly connected to the inner wall of the shell, a first slider is slidably installed on the hollow plate, and support rods are rotatably installed between the two first sliders and the two first baffles respectively, and a first gear is rotatably installed inside the hollow plate, wherein two first tooth plates are slidably installed inside the hollow plate, and the two first tooth plates are meshed with the first gear, and a first spring is fixedly installed between the first tooth plate and the inner wall of the hollow plate, and a paddle is fixedly connected to the top of one of the first tooth plates, and the paddle is arranged opposite to the first slider, and the second baffle is fixedly connected to the bottom of the other first tooth plate.

[0008] In order to drive the scraper to move horizontally to clean impurities on the surface of the filter plate, preferably, a screw is rotatably installed in the shell, a first belt is transmission-connected between the screw and the first rotating shaft, a second slider is threadedly connected to the screw, and a scraper that fits the upper surface of the filter plate is fixedly connected to the bottom of the second slider.

[0009] In order to drive the scraper to vibrate to clean impurities on the surface of the filter plate, further, a fixing rod is fixedly connected to the scraper, and the end of the fixing rod away from the scraper is set to a hemispherical shape, and the inner wall of the shell is fixedly connected with a plurality of equally spaced arc protrusions, wherein the arc protrusions are arranged on the moving path of the fixing rod, and a transversely arranged first guide rod is fixedly connected between the inner walls of the second sliding block, and a sliding block is fixedly connected to the top of the scraper, and the sliding block is slidably connected to the first guide rod, and a second spring is fixedly connected between the sliding block and the inner wall of the second sliding block.

[0010] In order to drive the fixed rod to move upward to clean the filter holes, further, a cam is installed inside the fence through a third rotating shaft, a second belt is transmission-connected between the third rotating shaft and the screw rod, a longitudinally arranged second guide rod is fixedly connected inside the fence, wherein a frame is slidably installed on the second guide rod, the cam contacts the bottom of the frame, an insertion rod matching the filter holes of the filter plate is fixedly connected inside the frame, and a third spring is fixedly connected between the top of the frame and the fence.

[0011] In order to drive the push plate and the rubber plate to clean the guide plate and the first baffle, preferably, the second sliding block is fixedly connected with a first connecting rod, the first connecting rod is slidably connected to the shell, a disc is fixedly connected to the first connecting rod, a rotating rod is rotatably installed on the disc, a push plate is fixedly connected to the rotating rod, the push plate is in contact with the surface of the guide plate, and a rubber plate is fixedly connected to the end of the guide plate.

[0012] In order to drive the detection probe to move laterally for mobile detection, further, a transversely arranged guide rail is fixedly connected between the inner walls of the fence, a third slider is slidably installed on the guide rail, the detection probe is installed on the third slider, a second connecting rod is fixedly connected to the third slider, the second connecting rod is fixedly connected to the first connecting rod, and the second connecting rod is slidably connected to the fence and the shell.

[0013] In order to rinse the detection probe, further, a water pump is fixedly connected to the outer side of the shell, and the input end and output end of the water pump are respectively fixedly connected with a water inlet pipe and a water outlet pipe, and the inner wall of the fence is fixedly connected with a water collecting tank and a collection tank, and a nozzle is arranged below the water collecting tank, wherein the water outlet pipe is fixedly connected to the shell, the fence and the water collecting tank and is connected with the inside of the water collecting tank, and the collection tank is arranged directly below the water collecting tank, and a delivery pipe passing through the fence is arranged on the collection tank, and a brush is rotatably installed on the collection tank through a fourth rotating shaft.

[0014] In order to drive the detection probe to drive the top of the collecting tank, preferably, a longitudinally arranged third guide rod is fixedly connected between the inner walls of the third sliding block, a fixing plate is slidably installed on the third guide rod, a fourth spring is fixedly connected between the top of the fixing plate and the inner wall of the third sliding block, a second gear is rotatably installed on the fixing plate through a transmission shaft, a second torsion spring is fixedly installed between the transmission shaft and the fixing plate, the detection probe is fixedly installed on the transmission shaft, a second tooth plate matching the second gear is fixedly connected to the top of the collecting tank, a roller is rotatably installed on the bottom of the fixing plate, and an inclined surface is provided on the collecting tank, and the inclined surface is set on the moving path of the roller.

[0015] A method for detecting water quality in a drainage network, the operating steps are as follows:

[0016] Step 1: Introduce sewage into the shell through the diversion pipe;

[0017] Step 2: Reduce the loss of the liquid to be tested by using the guide plate, the first baffle plate and the second baffle plate, and filter impurities in the liquid to be tested by using the filter plate, and the detection probe detects the liquid;

[0018] Step 3: Clean the filter plate with a scraper and a rod;

[0019] Step 4: Clean the guide plate and the first baffle plate respectively by using the push plate and the rubber plate;

[0020] Step 5: Clean the detection probe using a nozzle and a brush.

[0021] Compared with the prior art, the present invention provides a water quality detection device for drainage network, which has the following beneficial effects:

[0022] 1. The water quality detection device of the drainage network guides the water flow to the guide plate, and the guide plate rotates to guide the water flow. Then the water falls on the first baffle to rotate it and tighten the first torsion spring. The elastic force of the first torsion spring and the guidance of the guide plate are used to slow down the flow rate, and the liquid impurities are filtered through the filter plate, thereby improving the detection accuracy.

[0023] 2. The drainage network uses a water quality detection device. When the water flow is too large, the first slider will continue to slide and collide with the paddle, and drive the second baffle to extend under the transmission of the first tooth plate and the first gear, further blocking the water flow, further improving the ability to reduce the flow rate.

[0024] 3. The water quality detection device used in the drainage network cleans impurities on the surface of the filter plate by driving the scraper to move on the surface of the filter plate, and cleans impurities in the filter holes of the filter plate by driving the plug rod to rise, which has a better effect of filtering impurities and further improves the detection accuracy.

[0025] 4. The drainage network uses a water quality detection device. When the second slider moves, it will drive the first connecting rod to move synchronously. The first connecting rod drives the push plate to slide on the surface of the guide plate through the disc and the rotating rod, so as to clean the pollutants on the guide plate. At the same time, when the guide plate rotates, it will drive the rubber plate to rotate. The rubber plate hangs down the pollutants attached to the surface of the first baffle to prevent these pollutants from contaminating the subsequent liquid and affecting the detection results.

[0026] 5. The drainage network water quality detection device uses a first connecting rod that drives the second connecting rod to slide when the first connecting rod slides. The second connecting rod drives the detection probe to move along the guide rail through the third slider, thereby performing mobile detection, avoiding the accidental detection, and further improving the detection accuracy.

[0027] 6. The drainage network water quality detection device uses a fixed plate to drive the roller to move synchronously during the movement of the detection probe. When the roller moves toward the collection tank, it rolls on the inclined surface, thereby causing the fixed plate to slide upward along the third guide rod and compress the fourth spring, so that the detection probe reaches between the collection tank and the sump, and the detection probe is rinsed and scrubbed with a brush to clean the pollutants on the surface of the detection probe to prevent these pollutants from affecting the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic diagram of the axonometric structure of a water quality detection device for a drainage network proposed by the present invention Figure 1 ;

[0029] Figure 2 A schematic diagram of the axonometric structure of a water quality detection device for a drainage network proposed by the present invention Figure 2 ;

[0030] Figure 3This is a schematic diagram of the cutaway structure of a housing of a water quality detection device for a drainage network proposed by the present invention;

[0031] Figure 4 This is a schematic diagram of the first baffle structure of a water quality detection device for a drainage network proposed by the present invention;

[0032] Figure 5 This is a schematic diagram of the cross-sectional structure of a hollow plate of a water quality detection device for a drainage network proposed by the present invention;

[0033] Figure 6 A schematic diagram of the cutaway structure of a fence of a water quality detection device for a drainage network proposed by the present invention;

[0034] Figure 7 This is a schematic diagram of the cross-sectional structure of a second slider of a water quality detection device for a drainage network proposed by the present invention;

[0035] Figure 8 A schematic diagram of the structure of a collection tank of a water quality detection device for a drainage network proposed by the present invention;

[0036] Fig. 9 This is a schematic diagram of the cross-sectional structure of a third slider of a water quality detection device for a drainage network proposed by the present invention.

[0037] In the figure: 1, housing; 201, shunt pipe; 202, first rotating shaft; 203, guide plate; 204, second rotating shaft; 205, first baffle; 206, first torsion spring; 207, hollow plate; 208, first slider; 209, support rod; 210, first gear; 211, first tooth plate; 212, first spring; 213, second baffle; 214, paddle; 301, fence; 302, filter plate; 303, screw rod; 304, first belt; 305, second slider; 306, scraper; 307, fixing rod; 308, arc-shaped protrusion; 309, first guide rod; 310, sliding block; 311, second spring; 312, third rotating shaft; 313. cam; 314. second belt; 315. second guide rod; 316. frame; 317. plug rod; 318. third spring; 4. detection probe; 5. first connecting rod; 6. disc; 7. rotating rod; 8. push plate; 9. rubber sheet; 10. guide rail; 11. third slider; 12. second connecting rod; 13. water pump; 14. water inlet pipe; 15. water outlet pipe; 16. water collecting trough; 17. nozzle; 18. collecting trough; 19. delivery pipe; 20. fourth rotating shaft; 21. brush; 22. third guide rod; 23. fixing plate; 24. fourth spring; 25. transmission shaft; 26. second gear; 27. second torsion spring; 28. roller; 29. ​​second tooth plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the 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 a limitation on the present invention. Example

[0040] Reference Figure 1-Figure 9 A water quality detection device for a drainage network includes a shell 1 and a detection probe 4, and also includes: a shunt pipe 201, which is fixedly installed on the top of the shell 1, wherein a guide plate 203 is rotatably installed inside the shell 1 through a first rotating shaft 202, and two symmetrically arranged first baffles 205 are rotatably installed inside the shell 1 through a second rotating shaft 204, and a first torsion spring 206 is fixedly installed between the second rotating shaft 204 and the inner wall of the shell 1; a fence 301 fixedly connected to the inside of the shell 1, wherein a filter plate 302 is installed inside the fence 301, and the detection probe 4 is arranged between the filter plate 302 and the fence 301, and the shunt pipe 201 is connected to the drainage pipe, and the inner diameter of the shunt pipe 201 is one third of the inner diameter of the drainage pipe, and by lowering the pipe The inner diameter of the channel is used to initially slow down the flow rate. The water in the diverter pipe 201 will flow upward through the vertical pipeline. In this process, the water needs to overcome gravity, thereby slowing down the flow rate for a second time. The fence 301 is not in contact with the inner wall of the shell 1 on all sides, so that impurities can fall from all sides of the filter plate 302. Three drain pipes are arranged on the shell 1, one of which is used to discharge the water in the fence 301. The fence 301 is used to separate the filtered water and the water with impurities to avoid mixing them again. The detection probe 4 is connected to multiple external water quality sensors, such as pH sensor, dissolved oxygen sensor, turbidity sensor, ammonia nitrogen sensor, COD sensor, temperature sensor, etc. The detection probe 4 cooperates with these sensors to detect various parameters of water quality online.

[0041] Specifically, water flows to the guide plate 203, which rotates to guide the water flow. Then the water falls on the first baffle 205, causing it to rotate and tighten the first torsion spring 206. The elastic force of the first torsion spring 206 and the guidance of the guide plate 203 are used to slow down the flow rate, and the liquid impurities are filtered through the filter plate 302, thereby improving the detection accuracy. Example

[0042] Reference Figure 3-Figure 5, which is basically the same as the first embodiment, and further discloses a specific implementation scheme of driving the two second baffles 213 closer to each other to slow down the flow rate.

[0043] The inner wall of the housing 1 is fixedly connected to two symmetrically arranged hollow plates 207, a first slider 208 is slidably mounted on the hollow plate 207, a support rod 209 is rotatably mounted between the two first sliders 208 and the two first baffles 205, a first gear 210 is rotatably mounted inside the hollow plate 207, wherein two first tooth plates 211 are slidably mounted inside the hollow plate 207, both of which are meshed with the first gear 210, and the first tooth plates 211 are fixedly mounted to the inner wall of the hollow plate 207. A first spring 212 is fixedly installed, a paddle 214 is fixedly connected to the top of one of the first tooth plates 211, and the paddle 214 is arranged opposite to the first slider 208, and a second baffle 213 is fixedly connected to the bottom of the other first tooth plate 211, and grooves for movement of the first slider 208 and the connection between the first tooth plate 211 and the second baffle 213 are provided on the top and bottom of the hollow plate 207, and a limit rod is provided inside the hollow plate 207, and the first slider 208 and the first tooth plate 211 are both slidably connected to the limit rod.

[0044] Specifically, the first baffle 205 is squeezed and tilted by the water flow, and it drives the first slider 208 to slide through the support rod 209. When the water flow is too large, the first slider 208 continues to slide and hits the paddle 214, and drives the second baffle 213 to extend under the transmission of the first tooth plate 211 and the first gear 210, so as to further block the water flow and further improve the ability to reduce the flow rate. Through the first spring 212, after the water flow becomes smaller, the first spring 212 rebounds and drives the second baffle 213 to reset for subsequent use. Example

[0045] Reference Figure 1-Figure 3 as well as Figure 6-Figure 7 , which is basically the same as the second embodiment, and further discloses a specific implementation scheme of driving the scraper 306 and the insert rod 317 to clean the filter plate 302.

[0046] A screw rod 303 is rotatably installed in the shell 1, and a first belt 304 is transmission-connected between the screw rod 303 and the first rotating shaft 202. A second slider 305 is threadedly connected to the screw rod 303. A scraper 306 that fits the upper surface of the filter plate 302 is fixedly connected to the bottom of the second slider 305. A fixing rod 307 is fixedly connected to the scraper 306. The end of the fixing rod 307 away from the scraper 306 is set in a hemispherical shape. A plurality of equally spaced arc-shaped protrusions 308 are fixedly connected to the inner wall of the shell 1, wherein the arc-shaped protrusions 308 are set on the moving path of the fixing rod 307. A transversely arranged first guide rod 309 is fixedly connected between the inner walls of the second slider 305. A sliding block 310 is fixedly connected to the top of the scraper 306. The sliding block 310 is slidably connected to the first guide rod 309, and a second spring 311 is fixedly connected between the sliding block 310 and the inner wall of the second slider 305.

[0047] Specifically, the screw rod 303 is driven to rotate by the first belt 304, and then the scraper 306 is driven to move on the surface of the filter plate 302 through the second slider 305 to push down the impurities on the surface of the filter plate 302, and at the same time, the scraper 306 drives the fixed rod 307 to move synchronously. After the fixed rod 307 contacts the arc-shaped protrusion 308, it is squeezed so that the second slider 305 drives the sliding block 310 to slide on the first guide rod 309 and compress the second spring 311. The second spring 311 is continuously compressed and reset, so that the scraper 306 also shakes during the movement, thereby improving the effect of filtering impurities.

[0048] A cam 313 is rotatably installed inside the fence 301 through the third rotating shaft 312, and a second belt 314 is transmission-connected between the third rotating shaft 312 and the screw rod 303. A longitudinally arranged second guide rod 315 is fixedly connected inside the fence 301, wherein a frame 316 is slidably installed on the second guide rod 315, and the cam 313 is in contact with the bottom of the frame 316. An insertion rod 317 matching the filter holes of the filter plate 302 is fixedly connected inside the frame 316, and a third spring 318 is fixedly connected between the top of the frame 316 and the fence 301.

[0049] Specifically, the cam 313 is driven to rotate by the second belt 314 and the third rotating shaft 312. The cam 313 squeezes the frame 316 to make the insertion rod 317 rise and insert into the filter holes of the filter plate 302 to clean the filter holes while avoiding blockage, thereby further improving the effect of filtering impurities and further improving the detection accuracy. The frame 316 rises and slides along the second guide rod 315 and compresses the third spring 318. Then the third spring 318 is reset, causing the insertion rod 317 to move back and forth longitudinally. Example

[0050] Reference Figure 1 and Figure 3, which is basically the same as the third embodiment, and further discloses a specific implementation scheme for cleaning the guide plate 203 and the rubber plate 9.

[0051] The second slider 305 is fixedly connected with the first connecting rod 5, which is slidably connected to the shell 1. The first connecting rod 5 is fixedly connected with a disc 6, and a rotating rod 7 is rotatably installed on the disc 6. The rotating rod 7 is fixedly connected with a push plate 8, which contacts the surface of the guide plate 203, and the end of the guide plate 203 is fixedly connected with a rubber plate 9.

[0052] Specifically, when the second slider 305 moves, it will drive the first connecting rod 5 to move synchronously. The first connecting rod 5 drives the push plate 8 to slide on the surface of the guide plate 203 through the disc 6 and the rotating rod 7, so as to clean the pollutants on the guide plate 203. At the same time, when the guide plate 203 rotates, it will drive the rubber plate 9 to rotate. The rubber plate 9 scrapes off the pollutants attached to the surface of the first baffle 205 to prevent these pollutants from contaminating the subsequent liquid and affecting the detection results. The rotating rod 7 rotates on the disc 6, so that the guide plate 203 can drive the push plate 8 to rotate without affecting the lateral movement of the push plate 8. Example

[0053] Reference Figure 1 and Figure 3 as well as Figure 6 , which is basically the same as the fourth embodiment, and further discloses a specific implementation scheme of driving the detection probe 4 to perform movement detection.

[0054] A transversely arranged guide rail 10 is fixedly connected between the inner walls of the fence 301, a third slider 11 is slidably installed on the guide rail 10, the detection probe 4 is installed on the third slider 11, a second connecting rod 12 is fixedly connected to the third slider 11, the second connecting rod 12 is fixedly connected to the first connecting rod 5, and the second connecting rod 12 is slidably connected to both the fence 301 and the shell 1.

[0055] Specifically, when the first connecting rod 5 slides, it will drive the second connecting rod 12 to slide. The second connecting rod 12 drives the detection probe 4 to move along the guide rail 10 through the third slider 11, so as to perform mobile detection, avoid accidental detection, and further improve detection accuracy. Example

[0056] Reference Figure 2 as well as Figure 6-Figure 9 , which is basically the same as the fifth embodiment, and further discloses a specific implementation scheme of the flushing detection probe 4.

[0057] A water pump 13 is fixedly connected to the outer side of the shell 1, and the input end and output end of the water pump 13 are respectively fixedly connected to a water inlet pipe 14 and a water outlet pipe 15, and the inner wall of the fence 301 is fixedly connected to a water collecting tank 16 and a collecting tank 18, and a nozzle 17 is arranged below the water collecting tank 16, wherein the water outlet pipe 15 is fixedly connected to the shell 1, the fence 301 and the water collecting tank 16 and is communicated with the inside of the water collecting tank 16, and the collecting tank 18 is arranged directly below the water collecting tank 16, and a delivery pipe 19 that passes through the fence 301 is arranged on the collecting tank 18, and a brush 21 is rotatably installed on the collecting tank 18 through a fourth rotating shaft 20, the water pump 13 is electrically connected to an external power supply, and the water inlet pipe 14 is connected to an external clean water source.

[0058] Specifically, by starting the water pump 13, clean water is sprayed into the collection tank 18 by the nozzle 17 through the water inlet pipe 14, the water outlet pipe 15 and the water collection tank 16. At the same time, the impact of the nozzle 17 will drive the brush 21 and the fourth rotating shaft 20 to rotate, thereby flushing the detection probe 4 above the collection tank 18.

[0059] A longitudinally arranged third guide rod 22 is fixedly connected between the inner walls of the third slider 11, a fixing plate 23 is slidably installed on the third guide rod 22, a fourth spring 24 is fixedly connected between the top of the fixing plate 23 and the inner wall of the third slider 11, a second gear 26 is rotatably installed on the fixing plate 23 through a transmission shaft 25, a second torsion spring 27 is fixedly installed between the transmission shaft 25 and the fixing plate 23, the detection probe 4 is fixedly installed on the transmission shaft 25, a second toothed plate 29 matching the second gear 26 is fixedly connected to the top of the collecting tank 18, a roller 28 is rotatably installed on the bottom of the fixing plate 23, and an inclined surface is provided on the collecting tank 18, and the inclined surface is set on the moving path of the roller 28.

[0060] Specifically, during the movement of the detection probe 4, the roller 28 will be driven to move synchronously through the fixed plate 23. When the roller 28 moves toward the collecting tank 18, it will roll on the inclined surface, so that the fixed plate 23 slides upward along the third guide rod 22 and compresses the fourth spring 24, so that the detection probe 4 reaches between the collecting tank 18 and the sump 16, and the detection probe 4 is rinsed and scrubbed with the brush 21, so as to clean the pollutants on the surface of the detection probe 4 to prevent these pollutants from affecting the detection results. In the process of cleaning the pollutants on the surface of the detection probe 4, the second gear 26 rotates under the transmission of the second tooth plate 29, and then the second torsion spring 27 is tightened through the transmission shaft 25, driving the detection probe 4 to rotate, and the cleaning is more comprehensive and thorough. When the detection probe 4 leaves the collecting tank 18, the second torsion spring 27 and the fourth spring 24 are reset, so that the detection probe 4 returns to the initial position.

[0061] A method for detecting water quality in a drainage network, the operating steps are as follows:

[0062] Step 1: introducing sewage into the housing 1 through the diversion pipe 201;

[0063] Step 2: The flow guide plate 203, the first baffle plate 205 and the second baffle plate 213 are used to reduce the loss of the liquid to be tested, and the impurities in the liquid to be tested are filtered through the filter plate 302, and the detection probe 4 detects the liquid;

[0064] Step 3: Clean the filter plate 302 by using the scraper 306 and the insert rod 317;

[0065] Step 4: Clean the guide plate 203 and the first baffle plate 205 respectively by using the push plate 8 and the rubber plate 9;

[0066] Step five: Clean the detection probe 4 using the nozzle 17 and the brush 21 .

[0067] In the water quality detection device for drainage pipe network, the liquid to be detected enters the housing 1 through the shunt pipe 201, and the water flows to the guide plate 203, which rotates to guide the water flow. Then the water falls on the first baffle plate 205 to rotate and tighten the first torsion spring 206. The elastic force of the first torsion spring 206 and the guidance of the guide plate 203 are used to slow down the flow rate, and the liquid impurities are filtered through the filter plate 302. The first baffle plate 205 is squeezed and tilted by the water flow, and it drives the first slider 208 to slide through the support rod 209. When the water flow is too large, the first slider 208 continues to slide and hits the paddle 214, and drives the second baffle plate 213 to extend under the transmission of the first tooth plate 211 and the first gear 210, so as to further block the water flow and further improve the ability to reduce the flow rate. The detection probe 4 will move along the guide rail 10 through the third slider 11, so as to perform mobile detection, avoid the accidental detection, and further improve the detection accuracy.

[0068] The first belt 304 drives the screw rod 303 to rotate, and then drives the scraper 306 to move on the surface of the filter plate 302 through the second slider 305, so as to push down the impurities on the surface of the filter plate 302, and at the same time drives the cam 313 to rotate under the transmission of the second belt 314 and the third shaft 312, and the cam 313 squeezes the frame 316 to make the insertion rod 317 rise and insert into the filter hole of the filter plate 302, so as to clean the filter hole and avoid clogging, thereby further improving the effect of filtering impurities, thereby further improving the detection accuracy. During the detection process, the push plate 8 and the rubber plate 9 will continuously clean the pollutants on the guide plate 203 and the rubber plate 9 to avoid these pollutants from contaminating the subsequent liquid. During the movement, the roller 28 will be driven to move synchronously through the fixed plate 23. When the roller 28 moves toward the collecting tank 18, it will roll on the inclined surface, so that the fixed plate 23 slides upward along the third guide rod 22 and compresses the fourth spring 24, so that the detection probe 4 reaches between the collecting tank 18 and the sump 16, and the detection probe 4 is rinsed and scrubbed with the brush 21, so as to clean the pollutants on the surface of the detection probe 4 to prevent these pollutants from affecting the detection results. In the process of cleaning the pollutants on the surface of the detection probe 4, the second gear 26 rotates under the transmission of the second tooth plate 29, and then the second torsion spring 27 is tightened through the transmission shaft 25, driving the detection probe 4 to rotate, so that the cleaning is more comprehensive and thorough.

[0069] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A water quality detection device for a drainage network, comprising a housing (1) and a detection probe (4), characterized in that: Also includes: The shunt pipe (201) is fixedly mounted on the top of the housing (1). A guide plate (203) is rotatably mounted inside the shell (1) via a first rotating shaft (202), two symmetrically arranged first baffles (205) are rotatably mounted inside the shell (1) via a second rotating shaft (204), and a first torsion spring (206) is fixedly mounted between the second rotating shaft (204) and the inner wall of the shell (1); A fence (301) fixedly connected to the interior of the housing (1), Wherein, a filter plate (302) is installed inside the fence (301), and the detection probe (4) is arranged between the filter plate (302) and the fence (301); The inner wall of the housing (1) is fixedly connected to two symmetrically arranged hollow plates (207), a first slider (208) is slidably mounted on the hollow plate (207), a support rod (209) is rotatably mounted between the two first sliders (208) and the two first baffles (205), and a first gear (210) is rotatably mounted inside the hollow plate (207). Two first tooth plates (211) are slidably mounted inside the hollow plate (207), the two first tooth plates (211) are meshingly connected to the first gear (210), a first spring (212) is fixedly mounted between the first tooth plates (211) and the inner wall of the hollow plate (207), a paddle (214) is fixedly connected to the top of one of the first tooth plates (211), the paddle (214) is arranged opposite to the first slider (208), and a second baffle (213) is fixedly connected to the bottom of the other first tooth plate (211).

2. A water quality detection device for drainage pipe network according to claim 1, characterized in that: A screw rod (303) is rotatably mounted in the housing (1); a first belt (304) is transmission-connected between the screw rod (303) and the first rotating shaft (202); a second slider (305) is threadedly connected to the screw rod (303); a scraper (306) that is in contact with the upper surface of the filter plate (302) is fixedly connected to the bottom of the second slider (305).

3. A water quality detection device for drainage pipe network according to claim 2, characterized in that: The scraper (306) is fixedly connected to a fixing rod (307), one end of the fixing rod (307) away from the scraper (306) being arranged in a hemispherical shape, and the inner wall of the housing (1) is fixedly connected to a plurality of equally spaced arc-shaped protrusions (308). The arc-shaped protrusion (308) is arranged on the moving path of the fixed rod (307), a first guide rod (309) arranged transversely is fixedly connected between the inner walls of the second sliding block (305), a sliding block (310) is fixedly connected to the top of the scraper (306), the sliding block (310) is slidably connected to the first guide rod (309), and a second spring (311) is fixedly connected between the sliding block (310) and the inner wall of the second sliding block (305).

4. A water quality detection device for drainage pipe network according to claim 3, characterized in that: A cam (313) is rotatably mounted inside the fence (301) via a third rotating shaft (312), a second belt (314) is transmission-connected between the third rotating shaft (312) and the screw rod (303), and a second guide rod (315) disposed longitudinally is fixedly connected inside the fence (301). A frame (316) is slidably mounted on the second guide rod (315), the cam (313) is in contact with the bottom of the frame (316), an insertion rod (317) matching the filter holes of the filter plate (302) is fixedly connected inside the frame (316), and a third spring (318) is fixedly connected between the top of the frame (316) and the fence (301).

5. A water quality detection device for drainage network according to claim 4, characterized in that: The second sliding block (305) is fixedly connected to a first connecting rod (5), the first connecting rod (5) is slidably connected to the housing (1), the first connecting rod (5) is fixedly connected to a disk (6), a rotating rod (7) is rotatably mounted on the disk (6), a push plate (8) is fixedly connected to the rotating rod (7), the push plate (8) is in contact with the surface of the guide plate (203), and a rubber plate (9) is fixedly connected to the end of the guide plate (203).

6. A water quality detection device for drainage network according to claim 5, characterized in that: A transversely arranged guide rail (10) is fixedly connected between the inner walls of the fence (301), a third slider (11) is slidably mounted on the guide rail (10), the detection probe (4) is mounted on the third slider (11), a second connecting rod (12) is fixedly connected to the third slider (11), the second connecting rod (12) is fixedly connected to the first connecting rod (5), and the second connecting rod (12) is slidably connected to both the fence (301) and the housing (1).

7. A water quality detection device for drainage network according to claim 6, characterized in that: A water pump (13) is fixedly connected to the outside of the housing (1), and the input end and output end of the water pump (13) are respectively fixedly connected to a water inlet pipe (14) and a water outlet pipe (15). A water collecting trough (16) and a collecting trough (18) are fixedly connected to the inner wall of the fence (301), and a nozzle (17) is provided below the water collecting trough (16). The water outlet pipe (15) is fixedly connected to the housing (1), the fence (301) and the water collecting tank (16) and is in communication with the interior of the water collecting tank (16). The collecting tank (18) is arranged directly below the water collecting tank (16). The collecting tank (18) is provided with a delivery pipe (19) that passes through the fence (301). A brush (21) is rotatably mounted on the collecting tank (18) via a fourth rotating shaft (20).

8. A water quality detection device for drainage pipe network according to claim 7, characterized in that: A third guide rod (22) arranged longitudinally is fixedly connected between the inner walls of the third sliding block (11), a fixing plate (23) is slidably mounted on the third guiding rod (22), and a fourth spring (24) is fixedly connected between the top of the fixing plate (23) and the inner wall of the third sliding block (11). A second gear (26) is rotatably mounted on the fixed plate (23) via a transmission shaft (25); a second torsion spring (27) is fixedly mounted between the transmission shaft (25) and the fixed plate (23); the detection probe (4) is fixedly mounted on the transmission shaft (25); a second toothed plate (29) matching the second gear (26) is fixedly connected to the top of the collecting trough (18); a roller (28) is rotatably mounted on the bottom of the fixed plate (23); an inclined surface is provided on the collecting trough (18); and the inclined surface is arranged on the moving path of the roller (28).

9. A method for detecting water quality in a drainage network, using a device for detecting water quality in a drainage network as claimed in claim 8, characterized in that: The steps are as follows: Step 1: introducing sewage into the housing (1) through the diversion pipe (201); Step 2: reducing the loss of the liquid to be tested by means of the guide plate (203), the first baffle plate (205) and the second baffle plate (213), filtering impurities in the liquid to be tested by means of the filter plate (302), and testing the liquid by means of the testing probe (4); Step 3: Cleaning the filter plate (302) by using the scraper (306) and the insert rod (317); Step 4: Cleaning the guide plate (203) and the first baffle (205) respectively by using the push plate (8) and the rubber plate (9); Step 5: Clean the detection probe (4) using the nozzle (17) and the brush (21).

Images