A multi-point water quality monitoring device for drainage pipes

Abstract

The present invention discloses a multi-point water quality monitoring device for drainage pipes, which relates to the technical field of water quality monitoring and includes: a drainage pipe, two first connecting strips are fixedly connected to the inner side of the drainage pipe, the bottom of the two first connecting strips is fixedly connected with a mounting plate, a monitor housing is arranged on the top of the mounting plate, four first filter meshes are arranged on the top of the monitor housing, a partition plate is fixedly connected to the inner side of the monitor housing, and a water quality detector is installed inside the partition plate; a point position switching mechanism, which is arranged on the top of the mounting plate and is used for adjusting the detection position. By setting a channel switching mechanism, the device of the present invention can perform detection both when the water flow is large and when it is small, thereby avoiding the direct impact of the large water flow into the water quality detector and causing great damage to the electrical components, thus improving the service life of the electrical components inside the water quality detector.

Description

Technical Field

[0001] The invention relates to the technical field of water quality monitoring, in particular to a multi-point water quality monitoring device for a drainage pipeline. Background Art

[0002] The multi-point water quality monitoring device for drainage pipes is an equipment system used to monitor water quality parameters in drainage pipes in real time. It can provide key water quality data and is of great significance to urban water management, environmental protection and water resource reuse. The device monitors water quality parameters in drainage pipes in real time through water quality sensors, and the data acquisition and transmission equipment uploads the collected data to the monitoring center in real time. The monitoring center processes and analyzes the data through a professional software system to generate water quality reports and early warning information. Managers can timely understand the water quality status of drainage pipes based on these reports and information, and take corresponding treatment measures.

[0003] In the prior art, a Chinese invention patent with publication number "CN220340192U" discloses a "drainage pipe monitoring device", the key points of which are that it includes a drainage pipe, a connecting hole is opened through the middle of the upper surface of the drainage pipe, a monitoring pipe is arranged above the connecting hole, and a pipe cover is arranged above the monitoring pipe. Compared with the prior art, it has the following beneficial effects: by arranging an electric push rod, a lifting plate, a monitoring pipe and a water quality monitoring probe, when it is necessary to monitor the water quality in the drainage pipe, the electric push rod can drive the water quality monitoring probe into the drainage pipe through the lifting plate, so as to facilitate the water quality monitoring of the water in the drainage pipe. If no monitoring is required, the water quality monitoring probe can be placed inside the monitoring pipe so that it does not contact the water inside the drainage pipe, thereby reducing the time that the water quality monitoring probe is polluted and corroded by water and improving its service life. By arranging a connecting hose, a connecting hole and a thread, the monitoring pipe can be easily disassembled and assembled, so that the water quality monitoring probe can be easily inspected and repaired.

[0004] Although the above patent can solve the problem of inconvenience in monitoring the water quality inside the drainage pipe, the above patent still has the following problems:

[0005] The water flow rate in the drainage pipe is sometimes high and sometimes low. When the water flow rate is high, the water flow will cause a greater impact on the sensor, causing the sensor housing to deform or be damaged, thereby affecting the normal operation of its internal sensitive components. It may also accelerate the fatigue and aging of the sensor's internal supporting structure, reducing the reliability and service life of the sensor. For this reason, we have designed a multi-point water quality monitoring device for drainage pipes to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a multi-point water quality monitoring device for drainage pipes to solve the problems that when the water flow velocity in the drainage pipe is relatively large, it will cause a large impact on the sensor, affect its normal operation, and at the same time reduce the service life of the sensor.

[0007] To achieve the above object, the present invention provides the following technical solution: A multi-point water quality monitoring device for drainage pipes, comprising: a drainage pipe, two first connecting strips are fixedly connected to the inner side of the drainage pipe, the bottom of the two first connecting strips is fixedly connected with a mounting plate, a monitor housing is arranged on the top of the mounting plate, four first filter nets are arranged on the top of the monitor housing, a partition plate is fixedly connected to the inner side of the monitor housing, and a water quality detector is installed inside the partition plate; a position switching mechanism, the position switching mechanism is arranged on the top of the mounting plate and is used to adjust the detection position, the position switching mechanism includes a fixed seat fixedly connected to the top of the mounting plate, a limiting strip is fixedly connected to the inner side of the fixed seat, and the bottom of the limiting strip is fixedly connected with the mounting plate, a first sliding block is slidably connected to the outer wall of the limiting strip; a rotation protection mechanism, the rotation protection mechanism is arranged on one side of the monitor housing; a channel switching mechanism, the channel switching mechanism is arranged inside the monitor housing; a cleaning mechanism, the cleaning mechanism is arranged inside the monitor housing.

[0008] As a further solution of the present invention: The position switching mechanism further includes a first protective shell fixedly connected to the bottom of the mounting plate, a second driving motor is fixedly connected to the inner side of the first protective shell, the output end of the second driving motor penetrates to the top of the monitor housing and is fixedly connected with a first threaded rod, and the first sliding block is threadedly connected to the outer wall of the first threaded rod, a rectangular plate is slidably connected to the outer wall of the first sliding block, a third compression spring is installed between the inner side of the rectangular plate and the first sliding block, a roller is rotatably connected to the inner side of the rectangular plate, and an inclined block is fixedly connected to the top of the mounting plate and is closely attached to one side of the roller.

[0009] As a further solution of the present invention: The rotation protection mechanism includes a second protective shell fixedly connected to one side of the rectangular plate, a first driving motor is installed inside the second protective shell, the output end of the first driving motor penetrates to the other side of the rectangular plate and is fixedly connected with a rotating shaft, and one end of the rotating shaft is fixedly connected with the monitor housing.

[0010] As a further solution of the present invention: The channel switching mechanism includes a first circular tube rotatably connected to the inner side of the monitor housing, and the first circular tube penetrates to the top of the monitor housing and is fixedly connected with a sleeve. A second filter screen is fixedly connected to the water inlet on one side of the sleeve. A first rectangular strip is fixedly connected to the inner side of the monitor housing. One end of the first rectangular strip is fixedly connected with a first connecting plate. A second sliding block is slidably connected to the outer wall of the first rectangular strip. One end of the second sliding block is fixedly connected with a second straight rack. A third straight gear is fixedly connected to the outer wall of the first circular tube, and the third straight gear meshes with the second straight rack.

[0011] As a further solution of the present invention: The channel switching mechanism further includes a second connecting strip fixedly connected to one side of the rectangular plate. One end of the second connecting strip is fixedly connected with an annular gear. A first rotating rod is rotatably connected to the inner side of the monitor housing. One end of the first rotating rod penetrates to one side of the monitor housing and is fixedly connected with a first straight gear. The annular gear is provided with teeth meshing with the first straight gear at a partial position. One end of the first rotating rod is fixedly connected with a second threaded rod, and the second sliding block is threadedly connected to the outer wall of the second threaded rod. A shielding component is arranged on the top of the monitor housing.

[0012] As a further solution of the present invention: The shielding component includes a cam fixedly connected to the outer wall of the first rotating rod. Four groups of first connecting seats are fixedly connected to the outer wall of the monitor housing. Each group of first connecting seats has two. A second L-shaped plate is arranged inside the two first connecting seats. Second rotating rods are fixedly connected to both sides of the second L-shaped plate. One ends of the two second rotating rods respectively penetrate to one side of the two first connecting seats and are fixedly connected with second straight gears. A first straight rack is meshed with one side of the second straight gear. A fixing plate is fixedly connected to the outer wall of the monitor housing. A first limiting rod is fixedly connected to the top of the fixing plate. A first L-shaped plate is slidably connected to the outer wall of the first limiting rod, and a first compression spring is installed between the first L-shaped plate and the fixing plate. A circular ring is fixedly connected to the top of the first L-shaped plate, and the circular ring is fixedly connected with the first straight rack. One end of the second L-shaped plate is fixedly connected with a shielding plate.

[0013] As a further solution of the present invention: The cleaning mechanism includes two inwardly recessed rectangular grooves formed on the outer side of the first circular tube. A second circular tube is slidably connected to the inner sides of the two rectangular grooves. A second compression spring is installed between the second circular tube and the rectangular grooves. A first one-way valve is fixedly connected to the bottom of the second circular tube. A third connecting strip is fixedly connected to the inner side of the monitor housing. A driving wheel is fixedly connected to the bottom of the third connecting strip. An inclined surface is formed on the bottom surface of the driving wheel. A second connecting plate is fixedly connected to one side outer wall of the second circular tube. A spherical rod is fixedly connected to the top of the second connecting plate, and the spherical rod abuts against the inclined surface.

[0014] As a further solution of the present invention: The cleaning mechanism further includes a fourth connecting strip fixedly connected to the outer wall of the second circular tube. One end of the fourth connecting strip is fixedly connected to a third straight rack. Two second connecting seats are fixedly connected to the top of the partition plate. A fourth straight gear is rotatably connected to the inner sides of the second connecting seats, and the third straight rack meshes with the fourth straight gear. A second rectangular strip is fixedly connected to the top of the partition plate. A third connecting plate is slidably connected to the outer wall of the second rectangular strip. A fourth straight rack is fixedly connected to one side of the third connecting plate, and the fourth straight rack meshes with the fourth straight gear. Two second limiting rods are fixedly connected to the inner side of the monitor housing. A docking pipe is fixedly connected to the other side of the third connecting plate. A connecting hose is installed at the water inlet of the docking pipe. The other end of the connecting hose is installed at the water inlet of the second circular tube through a solenoid valve, and the connecting hose is lapped on the outer wall of the second limiting rod. A second one-way valve is installed inside the partition plate. A water outlet pipe is fixedly connected to the water outlet of the shielding plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. By setting the channel switching mechanism, when the water flow in the drain pipe is large and the monitor housing in the inclined state is adjusted to the horizontal state, the first filter screen will be shielded, and at the same time, the second filter screen is adjusted to the side in the water flow direction, so that the water inlet of the monitor housing is reduced, thereby avoiding the direct impact of the large water flow into the water quality detector. When the water flow is small, large-area detection can be carried out through the first filter screen. When the water flow is large, the device can perform small-range detection, so that the device can perform detection both when the water flow is large and small, thereby avoiding the direct impact of the large water flow into the water quality detector and causing great damage to the electrical components, thus improving the service life of the electrical components inside the water quality detector;

[0017] 2. By setting up a cleaning mechanism, when the position of the monitor housing is switched, the channel of the internal water outlet will also be switched. After water enters from the first filter screen and is detected by the water quality detector, it will flow out from the second filter screen. When water enters from the second filter screen and is detected by the water quality detector, it will flow out from the first filter screen. In this way, the impurities accumulated on the surfaces of the first filter screen and the second filter screen during the non-use process will be washed away, thus ensuring the cleanliness of the surfaces of the first filter screen and the second filter screen, eliminating the need for manual disassembly and cleaning by staff, and further improving the overall practicality of the device;

[0018] 3. Through the cooperation of components such as the second driving motor, the output end of the second driving motor drives the first threaded lead screw to rotate, thereby driving the first sliding block to move upward, which drives the rectangular plate to move upward, enabling the monitor housing to move upward, so that the water quality detector can monitor the water quality at different heights. At the same time, when the rectangular plate moves upward, it can drive the roller to move upward, and under the action of the inclined block and the third compression spring, the rectangular plate moves horizontally, driving the monitor housing to move, so that the monitor housing can monitor the water quality at different positions in the drain pipe, helping to capture the subtle differences in water quality changes, improving the accuracy and reliability of water quality monitoring, and thus enhancing the overall practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the inner side of the drain pipe of the present invention;

[0021] Figure 3 is a schematic structural diagram of the top of the mounting plate of the present invention;

[0022] Figure 4 is a side view of the mounting plate of the present invention;

[0023] Figure 5 is a schematic structural diagram of the inner side of the rectangular plate of the present invention;

[0024] Figure 6 is a schematic structural diagram of one side of the monitor housing of the present invention;

[0025] Figure 7 is a schematic partial structural diagram of the inner side of the monitor housing of the present invention;

[0026] Figure 8 is a schematic structural diagram of the cleaning mechanism of the present invention.

[0027] In the figure: 1, drain pipe; 2, first connecting strip; 3, mounting plate; 4, first protective shell; 5, monitor housing; 6, limiting strip; 7, fixing seat; 8, first sliding block; 9, first threaded lead screw; 10, rectangular plate; 11, inclined block; 12, roller; 13, rotating shaft; 14, first driving motor; 15, second protective shell; 16, second connecting strip; 17, annular gear; 18, first straight gear; 19, first rotating rod; 20, cam; 21, circular ring; 22, first L-shaped plate; 23, fixing plate; 24, first limiting rod; 25, first compression spring; 26, first straight rack; 27, first connecting seat; 28, second rotating rod; 29, second straight gear; 30, second L-shaped plate; 31, shielding plate; 32, first connecting plate; 33, first rectangular strip; 34, second sliding block; 35, second threaded lead screw; 36, second straight rack; 37, third straight gear; 38, sleeve; 39, first round tube; 40, third connecting strip; 41, second round tube; 42, second connecting plate; 43, spherical rod; 44, rectangular groove; 45, second compression spring; 46, first one-way valve; 47, water quality detector; 48, fourth connecting strip; 49, third straight rack; 50, second connecting seat; 51, fourth straight gear; 52, fourth straight rack; 53, second rectangular strip; 54, third connecting plate; 55, connecting hose; 56, second limiting rod; 57, docking pipe; 58, second one-way valve; 59, second driving motor; 60, third compression spring; 61, partition plate; 62, driving wheel; 63, inclined surface; 64, water outlet pipe. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The following describes the embodiments according to the overall structure of the present invention.

[0030] Please refer to Figures 1 to 8 , this embodiment provides a multi-point water quality monitoring device for drainage pipes, including:

[0031] A drainage pipe 1, two first connecting strips 2 are fixedly connected to the inner side of the drainage pipe 1, an installation plate 3 is fixedly connected to the bottom of the two first connecting strips 2, a monitor housing 5 is arranged on the top of the installation plate 3, four first filter meshes are arranged on the top of the monitor housing 5, a partition plate 61 is fixedly connected to the inner side of the monitor housing 5, and a water quality detector 47 is installed inside the partition plate 61; a point position switching mechanism, which is arranged on the top of the installation plate 3 and is used to adjust the detection position. The point position switching mechanism includes a fixed seat 7 fixedly connected to the top of the installation plate 3, a limiting strip 6 is fixedly connected to the inner side of the fixed seat 7, and the bottom of the limiting strip 6 is fixedly connected to the installation plate 3. A first sliding block 8 is slidably connected to the outer wall of the limiting strip 6; a rotation protection mechanism, which is arranged on one side of the monitor housing 5; a channel switching mechanism, which is arranged inside the monitor housing 5; a cleaning mechanism, which is arranged inside the monitor housing 5;

[0032] The point position switching mechanism further includes a first protective case 4 fixedly connected to the bottom of the mounting plate 3. A second driving motor 59 is fixedly connected to the inner side of the first protective case 4. The output end of the second driving motor 59 penetrates through the top of the monitor housing 5 and is fixedly connected to a first threaded lead screw 9. And the first sliding block 8 is threadedly connected to the outer wall of the first threaded lead screw 9. A rectangular plate 10 is slidably connected to the outer wall of the first sliding block 8. A third compression spring 60 is installed between the inner side of the rectangular plate 10 and the first sliding block 8. A roller 12 is rotatably connected to the inner side of the rectangular plate 10. An inclined block 11 is fixedly connected to the top of the mounting plate 3, and the inclined block 11 is closely attached to one side of the roller 12;

[0033] The rotation protection mechanism includes a second protective case 15 fixedly connected to one side of the rectangular plate 10. A first driving motor 14 is installed inside the second protective case 15. The output end of the first driving motor 14 penetrates through the other side of the rectangular plate 10 and is fixedly connected to a rotating shaft 13, and one end of the rotating shaft 13 is fixedly connected to the monitor housing 5;

[0034] The channel switching mechanism includes a first circular tube 39 rotatably connected to the inside of the monitor housing 5. And the first circular tube 39 penetrates through the top of the monitor housing 5 and is fixedly connected to a sleeve 38. A second filter screen is fixedly connected to the water inlet on one side of the sleeve 38. A first rectangular strip 33 is fixedly connected to the inside of the monitor housing 5. One end of the first rectangular strip 33 is fixedly connected to a first connecting plate 32. A second sliding block 34 is slidably connected to the outer wall of the first rectangular strip 33. One end of the second sliding block 34 is fixedly connected to a second straight rack 36. A third straight gear 37 is fixedly connected to the outer wall of the first circular tube 39, and the third straight gear 37 meshes with the second straight rack 36;

[0035] The channel switching mechanism further includes a second connecting strip 16 fixedly connected to one side of the rectangular plate 10. One end of the second connecting strip 16 is fixedly connected to an annular gear 17. A first rotating rod 19 is rotatably connected to the inside of the monitor housing 5. One end of the first rotating rod 19 penetrates through one side of the monitor housing 5 and is fixedly connected to a first straight gear 18. The annular gear 17 is provided with teeth meshing with the first straight gear 18 at a partial position. One end of the first rotating rod 19 is fixedly connected to a second threaded lead screw 35, and the second sliding block 34 is threadedly connected to the outer wall of the second threaded lead screw 35. A shielding assembly is arranged on the top of the monitor housing 5;

[0036] The shielding component includes a cam 20 fixedly connected to the outer wall of the first rotating rod 19. Four groups of first connection seats 27 are fixedly connected to the outer wall of the monitor housing 5. Each group of first connection seats 27 has two. A second L-shaped plate 30 is arranged inside the two first connection seats 27. Second rotating rods 28 are fixedly connected to both sides of the second L-shaped plate 30. One ends of the two second rotating rods 28 respectively penetrate to one side of the two first connection seats 27 and are fixedly connected with second straight gears 29. A first straight rack 26 is meshed with one side of the second straight gear 29. A fixing plate 23 is fixedly connected to the outer wall of the monitor housing 5. A first limiting rod 24 is fixedly connected to the top of the fixing plate 23. A first L-shaped plate 22 is slidably connected to the outer wall of the first limiting rod 24. A first compression spring 25 is installed between the first L-shaped plate 22 and the fixing plate 23. A circular ring 21 is fixedly connected to the top of the first L-shaped plate 22. The circular ring 21 is fixedly connected with the first straight rack 26. One end of the second L-shaped plate 30 is fixedly connected with a shielding plate 31;

[0037] The cleaning mechanism includes two inwardly recessed rectangular grooves 44 opened on the outer side of the first circular tube 39. A second circular tube 41 is slidably connected to the inside of the two rectangular grooves 44. A second compression spring 45 is installed between the second circular tube 41 and the rectangular groove 44. A first one-way valve 46 is fixedly connected to the bottom of the second circular tube 41. A third connecting strip 40 is fixedly connected to the inside of the monitor housing 5. A driving wheel 62 is fixedly connected to the bottom of the third connecting strip 40. An inclined surface 63 is opened on the bottom surface of the driving wheel 62. A second connecting plate 42 is fixedly connected to the outer wall of one side of the second circular tube 41. A spherical rod 43 is fixedly connected to the top of the second connecting plate 42. The spherical rod 43 abuts against the inclined surface 63;

[0038] The cleaning mechanism further includes a fourth connecting strip 48 fixedly connected to the outer wall of the second circular tube 41. One end of the fourth connecting strip 48 is fixedly connected with a third straight rack 49. Two second connection seats 50 are fixedly connected to the top of the partition plate 61. A fourth straight gear 51 is rotatably connected to the inside of the second connection seat 50. The third straight rack 49 is meshed with the fourth straight gear 51. A second rectangular strip 53 is fixedly connected to the top of the partition plate 61. A third connecting plate 54 is slidably connected to the outer wall of the second rectangular strip 53. A fourth straight rack 52 is fixedly connected to one side of the third connecting plate 54. The fourth straight rack 52 is meshed with the fourth straight gear 51. Two second limiting rods 56 are fixedly connected to the inside of the monitor housing 5. A docking pipe 57 is fixedly connected to the other side of the third connecting plate 54. A connecting hose 55 is installed at the water inlet of the docking pipe 57. The other end of the connecting hose 55 is installed at the water inlet of the second circular tube 41 through an electromagnetic valve. The connecting hose 55 is lapped on the outer wall of the second limiting rod 56. A second one-way valve 58 is installed inside the partition plate 61. A water outlet pipe 64 is fixedly connected to the water outlet of the shielding plate 31;

[0039] The second drive motor 59 is controlled by a PLC controller and can be controlled to start intermittently. When the device is working in the drain pipe 1, the PLC controller controls the second drive motor 59 to start at regular intervals. This interval can be half an hour, and the staff can adjust the start and stop times according to their needs. When the PLC controller controls the second drive motor 59 to start, the output end of the second drive motor 59 drives the first threaded lead screw 9 to rotate, thereby driving the first sliding block 8 to move upward, driving the rectangular plate 10 to move upward, causing the monitor housing 5 to move upward, enabling the water quality detector 47 to monitor the water quality at different heights. At the same time, when the rectangular plate 10 moves upward, it can drive the roller 12 to move upward, causing the rectangular plate 10 to move horizontally under the action of the inclined block 11 and the third compression spring 60, thereby driving the monitor housing 5 to move, enabling the monitor housing 5 to monitor the water quality at different positions in the drain pipe 1, helping to capture the subtle differences in water quality changes, improving the accuracy and reliability of water quality monitoring, and thus enhancing the overall practicality of the device;

[0040] The monitor housing 5 is initially in an inclined state, and this inclined state is 60 degrees. The first drive motor 14 is controlled by a PLC controller. A water flow sensor is provided on one side of the rectangular plate 10, which can detect changes in the water flow velocity. This sensor can be a thermal flow sensor or other sensors. When the water flow sensor senses an increase in the water flow velocity, it will send a signal to the PLC controller. The PLC controller controls the first drive motor 14 to start. The output end of the first drive motor 14 drives the rotating shaft 13 to drive the monitor housing 5 to rotate 30 degrees, enabling the inclined monitor housing 5 to rotate to a horizontal state, thus preventing water flow with too high a velocity from directly flushing into the water quality detector 47 through the filter screen on one side of the monitor housing 5, so that the internal sensitive components will not be damaged under long-term impact, and further improving the reliability and service life of the sensor and enhancing the overall practicality of the device;

[0041] When the water flow inside the drain pipe 1 is large and it is necessary to adjust the inclined monitor housing 5 to a horizontal state, when the first drive motor 14 drives the monitor housing 5 to rotate, when the teeth inside the annular gear 17 contact the first spur gear 18, at this time, under the action of the annular gear 17, the first spur gear 18 is driven to rotate self - clockwise, thereby driving the second threaded lead screw 35 to rotate, and driving the second slider 34 to move in the opposite direction of the first connecting plate 32, thereby driving the second straight rack 36 to move, and driving the third spur gear 37 to rotate, thereby driving the sleeve 38 to rotate, so that the water inlet on one side of the sleeve 38 can move to a position perpendicular to the water flow direction. At the same time, when the first spur gear 18 rotates, it drives the first rotating rod 19 to rotate, thereby driving the cam 20 to rotate. When the convex part of the cam 20 separates from the top of the ring 21, under the action of the first compression spring 25, the ring 21 is pushed upward, thereby driving the first straight rack 26 to move upward, driving the second spur gear 29 to rotate, thereby driving the second L - shaped plate 30 to rotate, and driving the shielding plate 31 to rotate, so that the shielding plate 31 covers the surface of the monitor housing 5, so that the water can only enter from the water inlet on one side of the sleeve 38, reducing the water flow rate, thereby reducing the impact of the water flow on the water quality detector 47 inside the monitor housing 5, making the impact force of the water flow within the range that will not damage the water quality detector 47, thereby realizing the monitoring of water quality while protecting the water quality detector 47, and improving the overall practicality of the device;

[0042] When the water flow is slow, at this time the shielding plate 31 opens, the water flows in from the top of the monitor housing 5, and then enters the inside of the water quality detector 47 from the top of the water quality detector 47. At this time, the water quality detector 47 will monitor the incoming water body, and at the same time enter the inside of the butt joint pipe 57 from the top of the second one - way valve 58, and then be discharged from one side of the sleeve 38, thereby realizing the monitoring of the water body in the pipeline and also cleaning the second filter screen on one side of the sleeve 38.

[0043] When the water flow is relatively rapid, during the process of the monitor housing 5 rotating from an inclined state to a horizontal state, at this time, while the first circular tube 39 rotates, it drives the spherical rod 43 to rotate, thereby driving the spherical rod 43 to rotate. When the spherical rod 43 moves from the lowest point to the highest point of the inclined surface 63, under the action of the inclined surface 63, it pushes the spherical rod 43 to move downward, thereby driving the first one-way valve 46 to move downward, so as to dock the first one-way valve 46 with the water inlet of the water quality detector 47. At the same time, while the second circular tube 41 moves downward, it drives the third straight rack 49 to move downward, thereby driving the fourth spur gear 51 to rotate, and then driving the fourth straight rack 52 to move upward. When the second one-way valve 58 is separated from the docking pipe 57, the docking between the second one-way valve 58 and the docking pipe 57 is opened, so that water can enter the top of the partition plate 61 from the second one-way valve 58 and be discharged through the water outlet pipe 64. At the same time, when discharging, the first filter screen on the top of the monitor housing 5 can be flushed and cleaned in one direction and discharged through the water outlet pipe 64. When the monitor housing 5 rotates from a horizontal state to an inclined state, the output end of the first driving motor 14 runs in the reverse direction, so that the sleeve 38 performs a rotation reset operation. During this process, the first one-way valve 46 is separated from the water inlet of the water quality detector 47, and at the same time, the second one-way valve 58 is docked with the docking pipe 57, so that water enters the inside of the monitor housing 5 through the first filter screen, is detected by the water quality detector 47, and then flows into the inside of the sleeve 38 through the second one-way valve 58 and is discharged through the second filter screen on one side of the sleeve 38. In this way, during the angle switching process of the device, the water inlet position can flush away the impurities attached to the first filter screen and the second filter screen respectively after switching, so as to ensure the cleanliness of the surfaces of the first filter screen and the second filter screen, avoid their blockage, thereby improving the water flow passing rate and the overall practicability of the device.

[0044] In addition, when the drain pipe does not change, the PLC controller can also control the output end of the first driving motor 14 to rotate forward and backward, so as to automatically flush and clean the surfaces of the first filter screen and the second filter screen, thereby ensuring that the device can continuously perform detection and further improving the overall practicability of the device.

[0045] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A multi-point water quality monitoring device for drainage pipelines, characterized in that, Including: A drain pipe (1), two first connecting strips (2) are fixedly connected to the inner side of the drain pipe (1), an installation plate (3) is fixedly connected to the bottom of the two first connecting strips (2), a monitor housing (5) is arranged on the top of the installation plate (3), four first filter meshes are arranged on the top of the monitor housing (5), a partition plate (61) is fixedly connected to the inner side of the monitor housing (5), and a water quality detector (47) is installed inside the partition plate (61); A point position switching mechanism, which is arranged on the top of the installation plate (3) and is used for adjusting the detection position. The point position switching mechanism includes a fixed seat (7) fixedly connected to the top of the installation plate (3), a limiting strip (6) is fixedly connected to the inner side of the fixed seat (7), and the bottom of the limiting strip (6) is fixedly connected to the installation plate (3). A first sliding block (8) is slidably connected to the outer wall of the limiting strip (6); A rotation protection mechanism, which is arranged on one side of the monitor housing (5); A channel switching mechanism, which is arranged inside the monitor housing (5); A cleaning mechanism, which is arranged inside the monitor housing (5); The point position switching mechanism further includes a first protective shell (4) fixedly connected to the bottom of the installation plate (3). A second driving motor (59) is fixedly connected to the inner side of the first protective shell (4). The output end of the second driving motor (59) penetrates through the top of the monitor housing (5) and is fixedly connected to a first threaded rod (9). The first sliding block (8) is threadedly connected to the outer wall of the first threaded rod (9). A rectangular plate (10) is slidably connected to the outer wall of the first sliding block (8). A third compression spring (60) is installed between the inner side of the rectangular plate (10) and the first sliding block (8). A roller (12) is rotatably connected to the inner side of the rectangular plate (10). An inclined block (11) is fixedly connected to the top of the installation plate (3), and the inclined block (11) is closely attached to one side of the roller (12); The rotation protection mechanism includes a second protective shell (15) fixedly connected to one side of the rectangular plate (10). A first driving motor (14) is installed inside the second protective shell (15). The output end of the first driving motor (14) penetrates through the other side of the rectangular plate (10) and is fixedly connected to a rotating shaft (13). One end of the rotating shaft (13) is fixedly connected to the monitor housing (5); The channel switching mechanism includes a first circular tube (39) rotatably connected to the inner side of the monitor housing (5), and the first circular tube (39) penetrates through the top of the monitor housing (5) and is fixedly connected to a sleeve (38). A second filter screen is fixedly connected to the water inlet on one side of the sleeve (38). A first rectangular bar (33) is fixedly connected to the inner side of the monitor housing (5). One end of the first rectangular bar (33) is fixedly connected to a first connecting plate (32). A second sliding block (34) is slidably connected to the outer wall of the first rectangular bar (33). One end of the second sliding block (34) is fixedly connected to a second straight rack (36). A third straight gear (37) is fixedly connected to the outer wall of the first circular tube (39), and the third straight gear (37) meshes with the second straight rack (36). The channel switching mechanism further includes a second connecting bar (16) fixedly connected to one side of the rectangular plate (10). One end of the second connecting bar (16) is fixedly connected to an annular gear (17). A first rotating rod (19) is rotatably connected to the inner side of the monitor housing (5). One end of the first rotating rod (19) penetrates through one side of the monitor housing (5) and is fixedly connected to a first straight gear (18). Teeth meshing with the first straight gear (18) are provided at a partial position of the annular gear (17). One end of the first rotating rod (19) is fixedly connected to a second threaded rod (35), and the second sliding block (34) is threadedly connected to the outer wall of the second threaded rod (35). A shielding component is provided at the top of the monitor housing (5). The shielding component includes a cam (20) fixedly connected to the outer wall of the first rotating rod (19). Four groups of first connecting seats (27) are fixedly connected to the outer wall of the monitor housing (5). Each group of the first connecting seats (27) has two. A second L-shaped plate (30) is arranged inside the two first connecting seats (27). Second rotating rods (28) are fixedly connected to both sides of the second L-shaped plate (30). One end of each of the two second rotating rods (28) penetrates through one side of the two first connecting seats (27) and is fixedly connected to a second straight gear (29). A first straight rack (26) meshes with one side of the second straight gear (29). A fixing plate (23) is fixedly connected to the outer wall of the monitor housing (5). A first limiting rod (24) is fixedly connected to the top of the fixing plate (23). A first L-shaped plate (22) is slidably connected to the outer wall of the first limiting rod (24), and a first compression spring (25) is installed between the first L-shaped plate (22) and the fixing plate (23). A circular ring (21) is fixedly connected to the top of the first L-shaped plate (22), and the circular ring (21) is fixedly connected to the first straight rack (26). One end of the second L-shaped plate (30) is fixedly connected to a shielding plate (31). The cleaning mechanism includes two inwardly recessed rectangular grooves (44) formed on the outer side of the first circular tube (39). A second circular tube (41) is slidably connected to the inner sides of the two rectangular grooves (44). A second compression spring (45) is installed between the second circular tube (41) and the rectangular grooves (44). A first one-way valve (46) is fixedly connected to the bottom of the second circular tube (41). A third connecting bar (40) is fixedly connected to the inner side of the monitor housing (5). A driving wheel (62) is fixedly connected to the bottom of the third connecting bar (40). An inclined surface (63) is formed on the bottom surface of the driving wheel (62). A second connecting plate (42) is fixedly connected to the outer wall of one side of the second circular tube (41). A spherical rod (43) is fixedly connected to the top of the second connecting plate (42), and the spherical rod (43) abuts against the inclined surface (63).

2. The multi-point water quality monitoring device for a drainage pipeline according to claim 1, characterized in that The cleaning mechanism further includes a fourth connecting bar (48) fixedly connected to the outer wall of the second circular tube (41). One end of the fourth connecting bar (48) is fixedly connected to a third straight rack (49). Two second connecting seats (50) are fixedly connected to the top of the partition plate (61). A fourth straight gear (51) is rotatably connected to the inner sides of the second connecting seats (50), and the third straight rack (49) meshes with the fourth straight gear (51). A second rectangular bar (53) is fixedly connected to the top of the partition plate (61). A third connecting plate (54) is slidably connected to the outer wall of the second rectangular bar (53). A fourth straight rack (52) is fixedly connected to one side of the third connecting plate (54), and the fourth straight rack (52) meshes with the fourth straight gear (51). Two second limiting rods (56) are fixedly connected to the inner side of the monitor housing (5). A docking pipe (57) is fixedly connected to the other side of the third connecting plate (54). A connecting hose (55) is installed at the water inlet of the docking pipe (57). The other end of the connecting hose (55) is installed at the water inlet of the second circular tube (41) through a solenoid valve, and the connecting hose (55) is lapped on the outer wall of the second limiting rod (56). A second one-way valve (58) is installed inside the partition plate (61). A water outlet pipe (64) is fixedly connected to the water outlet of the shielding plate (31).

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