Multi-point water quality monitoring device for drainage pipeline

Abstract

The invention discloses a multi-point water quality monitoring device for a drainage pipeline, and relates to the technical field of water quality monitoring, the multi-point water quality monitoring device comprises a drainage pipe, the inner side of the drainage pipe is fixedly connected with two first connecting strips, the bottoms of the two first connecting strips are fixedly connected with a mounting plate, and the top of the mounting plate is provided with a monitor shell; four first filter screens are arranged at the top of the monitor shell, a partition plate is fixedly connected to the inner side of the monitor shell, and a water quality detector is mounted on the inner side of the partition plate; and the point location exchange mechanism is arranged at the top of the mounting plate and is used for adjusting the detection position. According to the invention, the channel switching mechanism is arranged, so that the device can carry out detection when the water flow is large or small, the situation that the water flow is large and directly impacts into the water quality detector to cause large damage to electrical components is avoided, and the service life of the electrical components in the water quality detector is prolonged.

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: 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

[0005] The purpose of the present invention is to provide a multi-point water quality monitoring device for a drainage pipe in order to solve the problem that when the water flow rate in the drainage pipe is high, it will have a great impact on the sensor, affecting its normal operation and reducing its service life.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A multi-point water quality monitoring device for a drainage pipe, comprising: a drainage pipe, two first connecting strips are fixedly connected to the inner side of the drainage pipe, a mounting plate is fixedly connected to the bottom of the two first connecting strips, a monitor housing is arranged on the top of the mounting plate, four first filter screens 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 on the inner side of the partition plate; a point switching mechanism, the point switching mechanism is arranged on the top of the mounting plate and is used to adjust the detection position, the point switching mechanism includes a fixed seat fixedly connected to the top of the mounting plate, a limit strip is fixedly connected to the inner side of the fixed seat, and the bottom of the limit strip is fixedly connected to the mounting plate, and a first sliding block is slidably connected to the outer wall of the limit 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 on the inner side of the monitor housing; a cleaning mechanism, the cleaning mechanism is arranged on the inner side of the monitor housing.

[0007] As a further solution of the present invention: the point exchange mechanism also includes a first protective shell fixedly connected to the bottom of the mounting plate, a second drive motor is fixedly connected to the inner side of the first protective shell, the output end of the second drive motor passes through the top of the monitor housing and is fixedly connected to a first threaded screw, and the first sliding block is threadedly connected to the outer wall of the first threaded screw, the outer wall of the first sliding block is slidably connected to a rectangular plate, a third compression spring is installed between the inner side of the rectangular plate and the first sliding block, the inner side of the rectangular plate is rotatably connected to a roller, and the top of the mounting plate is fixedly connected to an inclined block, and the inclined block is tightly attached to one side of the roller.

[0008] 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 drive motor is installed on the inner side of the second protective shell, an output end of the first drive motor passes through the other side of the rectangular plate and is fixedly connected to a rotating shaft, and one end of the rotating shaft is fixedly connected to the monitor housing.

[0009] 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 passes through the top of the monitor housing and is fixedly connected to a sleeve, a second filter screen is fixedly connected to the water inlet on one side of the sleeve, a first rectangular bar is fixedly connected to the inner side of the monitor housing, one end of the first rectangular bar is fixedly connected to a first connecting plate, the outer wall of the first rectangular bar is slidably connected to a second sliding block, one end of the second sliding block is fixedly connected to a second spur rack, the outer wall of the first circular tube is fixedly connected to a third spur gear, and the third spur gear is meshed with the second spur rack.

[0010] As a further solution of the present invention: the channel switching mechanism also includes a second connecting strip fixedly connected to one side of the rectangular plate, one end of the second connecting strip is fixedly connected to a ring gear, the inner side of the monitor housing is rotatably connected to a first rotating rod, one end of the first rotating rod passes through one side of the monitor housing and is fixedly connected to a first spur gear, a local position of the ring gear is provided with a latch tooth that meshes with the first spur gear, one end of the first rotating rod is fixedly connected to a second threaded screw, and the second sliding block is threadedly connected to the outer wall of the second threaded screw, and a shielding assembly is provided on the top of the monitor housing.

[0011] As a further scheme of the present invention: the shielding assembly includes a cam fixedly connected to the outer wall of the first rotating rod, the outer wall of the first protective shell is fixedly connected to four groups of first connecting seats, each group of first connecting seats is provided with two, and second L-shaped plates are provided on the inner sides of the two first connecting seats, and the second rotating rods are fixedly connected on both sides of the second L-shaped plates, one end of the two second rotating rods respectively penetrates through one side of the two first connecting seats and is fixedly connected to the second spur gears, and one side of the second spur gear is meshed with the first spur rack, the outer wall of the monitor housing is fixedly connected to a fixing plate, the top of the fixing plate is fixedly connected to a first limiting rod, the outer wall of the first limiting rod is slidably connected to the first L-shaped plate, and a first compression spring is installed between the first L-shaped plate and the fixing plate, the top of the first L-shaped plate is fixedly connected to a circular ring, and the circular ring is fixedly connected to the first spur rack, and one end of the second L-shaped plate is fixedly connected to a shielding plate.

[0012] As a further solution of the present invention: the cleaning mechanism includes two inwardly recessed rectangular grooves provided 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, a slope is provided on the bottom surface of the driving wheel, a second connecting plate is fixedly connected to the outer wall of one side of the second circular tube, a spherical rod is fixedly connected to the top of the second connecting plate, and the spherical rod is against the slope.

[0013] As a further solution of the present invention: the cleaning mechanism also includes a fourth connecting bar fixedly connected to the outer wall of the second circular tube, one end of the fourth connecting bar is fixedly connected to a third spur rack, the top of the partition plate is fixedly connected to two second connecting seats, the inner side of the second connecting seat is rotatably connected to a fourth spur gear, and the third spur rack is meshed with the fourth spur gear, the top of the partition plate is fixedly connected to a second rectangular bar, the outer wall of the second rectangular bar is slidably connected to a third connecting plate, one side of the third connecting plate is fixedly connected to a fourth spur rack, and the fourth spur rack is meshed with the fourth spur gear, two second limiting rods are fixedly connected to the inner side of the monitor housing, the other side of the third connecting plate is fixedly connected to a butt joint pipe, a connecting hose is installed at the water inlet of the butt joint 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 overlapped on the outer wall of the second limiting rod, and a second one-way valve is installed on the inner side of the partition plate, and a water outlet pipe is fixedly connected to the water outlet of the shielding plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a channel switching mechanism, when the water flow inside the drain pipe is large and the inclined monitor housing is adjusted to a horizontal state, the first filter will be shielded, and at the same time the second filter is adjusted to be located on one side of the water flow direction, so that the water inlet of the monitor housing is reduced, so as to avoid excessive water flow directly impacting the inside of the water quality detector. When the water flow is small, it can enter through the first filter to conduct large-area detection. When the water flow is large, the device can conduct small-range detection, so that the device can conduct detection when the water flow is large or small, thereby avoiding the large water flow directly impacting the water quality detector and causing greater damage to the electrical components, thereby improving the service life of the electrical components inside the water quality detector; 2. By setting a cleaning mechanism, when the monitor housing switches positions, the channel of the internal water outlet will switch, so that after water enters from the first filter, it will flow out from the second filter after being detected by the water quality detector, and when water enters from the second filter, it will flow out from the first filter after being detected by the water quality detector, so that the impurities accumulated on the surfaces of the first filter and the second filter when not in use will be washed away, thereby ensuring the cleanliness of the surfaces of the first filter and the second filter, without the need for manual disassembly and cleaning by staff, thereby improving the overall practicality of the device; 3. By setting up the cooperation of parts such as the second drive motor, the output end of the second drive motor drives the first threaded screw to rotate, thereby driving the first sliding block to move upward, thereby driving the rectangular plate to move upward, so that the monitor housing can move upward, so that the water quality detector can monitor the water quality at different heights. At the same time, when the rectangular plate is upward, it can drive the roller to move upward, so that the rectangular plate moves horizontally under the action of the inclined block and the third compression spring, thereby driving the monitor housing to move, so that the monitor housing can monitor the water quality at different points in the drain pipe, which helps to capture subtle differences in water quality changes, improve the accuracy and reliability of water quality monitoring, and thereby improve the overall practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the inner structure of the drainage pipe of the present invention; Figure 3 It is a schematic diagram of the top structure of the mounting plate of the present invention; Figure 4 A side view of the mounting plate of the present invention; Figure 5 It is a schematic diagram of the inner structure of a rectangular plate of the present invention; Figure 6 It is a schematic diagram of the structure of one side of the housing of the monitor of the present invention; Figure 7 It is a schematic diagram of the partial structure inside the housing of the monitor of the present invention; Figure 8 It is a schematic diagram of the cleaning mechanism structure of the present invention.

[0016] In the figure: 1, drain pipe; 2, first connecting strip; 3, mounting plate; 4, first protective shell; 5, monitor shell; 6, limit strip; 7, fixed seat; 8, first sliding block; 9, first threaded 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, ring gear; 18, first straight gear; 19, first rotating rod; 20, cam; 21, circular ring; 22, first L-shaped plate; 23, fixed plate; 24, first limit rod; 25, first compression spring; 26, first straight rack; 27, first connecting seat; 28, second rotating rod; 29, second spur gear; 30, second L-shaped plate; 31, shielding plate; 32, first connecting plate; 33, first rectangular bar; 34, second sliding block; 35, second threaded screw; 36, second spur rack; 37, third spur gear; 38, sleeve; 39, first round tube; 40, third connecting bar; 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 bar; 49, third spur rack; 50, second connecting seat; 51, fourth spur gear; 52, fourth spur rack; 53, second rectangular bar; 54, third connecting plate; 55, connecting hose; 56, second limit rod; 57, butt joint; 58, second one-way valve; 59, second drive motor; 60, third compression spring; 61, partition plate; 62, drive wheel; 63, inclined plane; 64, water outlet pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "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 or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of 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 circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0019] See also Figures 1 to 8 This embodiment provides a multi-point water quality monitoring device for a drainage pipe, comprising: Drain pipe 1, two first connecting strips 2 are fixedly connected to the inner side of the drain pipe 1, a mounting 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 mounting plate 3, four first filter screens 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, a water quality detector 47 is installed on the inner side of the partition plate 61; a point position switching mechanism, the point position switching mechanism is arranged on the top of the mounting 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 mounting plate 3, a limit strip 6 is fixedly connected to the inner side of the fixed seat 7, and the bottom of the limit strip 6 is fixedly connected to the mounting plate 3, and the outer wall of the limit strip 6 is slidably connected to a first sliding block 8; a rotation protection mechanism, the rotation protection mechanism is arranged on one side of the monitor housing 5; a channel switching mechanism, the channel switching mechanism is arranged on the inner side of the monitor housing 5; a cleaning mechanism, the cleaning mechanism is arranged on the inner side of the monitor housing 5; The point switching mechanism also includes a first protective shell 4 fixedly connected to the bottom of the mounting plate 3, a second drive motor 59 is fixedly connected to the inner side of the first protective shell 4, an output end of the second drive motor 59 passes through the top of the monitor housing 5 and is fixedly connected to a first threaded screw 9, and a first sliding block 8 is threadedly connected to the outer wall of the first threaded 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 tightly 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 drive motor 14 is installed inside the second protective shell 15, an output end of the first drive motor 14 passes 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; 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 to the top of the monitor housing 5 and is fixedly connected with 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 the first connecting plate 32, the outer wall of the first rectangular bar 33 is slidably connected to the second sliding block 34, one end of the second sliding block 34 is fixedly connected to the second spur rack 36, the outer wall of the first circular tube 39 is fixedly connected to the third spur gear 37, and the third spur gear 37 is meshed with the second spur rack 36; The channel switching mechanism also 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 a ring gear 17, the inner side of the monitor housing 5 is rotatably connected to a first rotating rod 19, one end of the first rotating rod 19 penetrates to one side of the monitor housing 5 and is fixedly connected to a first spur gear 18, a local position of the ring gear 17 is provided with a latching tooth meshing with the first spur gear 18, one end of the first rotating rod 19 is fixedly connected to a second threaded screw 35, and a second sliding block 34 is threadedly connected to the outer wall of the second threaded screw 35, and a shielding component is provided on the top of the monitor housing 5; The shielding assembly 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 first protective shell 4, and each group of first connecting seats 27 is provided with two, and the inner sides of the two first connecting seats 27 are provided with second L-shaped plates 30, and the second rotating rods 28 are fixedly connected to the two sides of the second L-shaped plates 30, and one end of the two second rotating rods 28 respectively penetrates through one side of the two first connecting seats 27 and is fixedly connected to the second spur gears 29, and one side of the second spur gear 29 is meshed with the first spur rack 26, and the outer wall of the monitor housing 5 is fixedly connected to the fixing plate 23, and the top of the fixing plate 23 is fixedly connected to the first limiting rod 24, and the outer wall of the first limiting rod 24 is slidably connected to the first L-shaped plate 22, and a first compression spring 25 is installed between the first L-shaped plate 22 and the fixing plate 23, and the top of the first L-shaped plate 22 is fixedly connected to the ring 21, and the ring 21 is fixedly connected to the first spur rack 26, and one end of the second L-shaped plate 30 is fixedly connected to the 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 side 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 non-return 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 rests on the inclined surface 63; The cleaning mechanism also 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 to a third spur rack 49, the top of the partition plate 61 is fixedly connected to two second connecting seats 50, the inner side of the second connecting seat 50 is rotatably connected to a fourth spur gear 51, and the third spur rack 49 is meshed with the fourth spur gear 51, the top of the partition plate 61 is fixedly connected to a second rectangular strip 53, the outer wall of the second rectangular strip 53 is slidably connected to a third connecting plate 54, and one side of the third connecting plate 54 is fixedly connected to a fourth spur gear The fourth spur rack 52 is meshed with the fourth spur gear 51, two second limit rods 56 are fixedly connected to the inner side of the monitor housing 5, a butt joint 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 butt joint pipe 57, the other end of the connecting hose 55 is installed at the water inlet of the second round tube 41 through a solenoid valve, and the connecting hose 55 is overlapped on the outer wall of the second limit rod 56, and a second one-way valve 58 is installed on the inner side of the partition plate 61, and a water outlet pipe 64 is fixedly connected to the water outlet of the shielding plate 31; The second drive motor 59 is controlled by a PLC controller, and the second drive motor 59 can be controlled to start intermittently. When the device is working in the drain pipe 1, the PLC controller controls the start of the second drive motor 59 at a certain time interval, and the time interval can be half an hour. The staff can adjust the start and stop time according to the needs. When the PLC controller controls the start of the second drive motor 59, the output end of the second drive motor 59 drives the first threaded screw 9 to rotate, thereby driving the first sliding block 8 to move upward, thereby driving the rectangular plate 10 to move upward, so that the monitor housing 5 can move upward, so that the water quality detector 47 can monitor the water quality at different heights. At the same time, when the rectangular plate 10 is upward, it can drive the roller 12 to move upward, so that the rectangular plate 10 moves horizontally under the action of the inclined block 11 and the third compression spring 60, thereby driving the monitor housing 5 to move, so that the monitor housing 5 can monitor the water quality at different points in the drain pipe 1, which is helpful to capture the subtle differences in water quality changes, improve the accuracy and reliability of water quality monitoring, and thereby improve the overall practicality of the device; The monitor housing 5 is initially in an inclined state, where the inclined state is sixty degrees. The first drive motor 14 is controlled by the PLC controller. A water flow sensor is set on one side of the rectangular plate 10 to detect the change in the flow rate of the water flow. The sensor can be a thermal flow rate sensor or other sensors. When the water flow sensor senses that the flow rate of the water flow increases, the water flow sensor will send a signal to the PLC controller. The PLC controller controls the start of the first drive motor 14. The output end of the first drive motor 14 drives the rotating shaft 13 to drive the monitor housing 5 to rotate thirty degrees, so that the monitor housing 5 in the inclined state can be rotated to a horizontal state, so as to avoid the water flow with excessive flow rate from directly impacting the filter on one side of the monitor housing 5 and entering the water quality detector 47, so that the internal sensitive components will not be damaged under long-term impact, thereby improving the reliability and service life of the sensor and improving the overall practicality of the device. When the water flow inside the drain pipe 1 is large and the inclined monitor housing 5 needs to be adjusted to a horizontal state, when the first drive motor 14 drives the monitor housing 5 to rotate, the inner teeth of the ring gear 17 contact the first spur gear 18, and the first spur gear 18 is driven to rotate by the action of the ring gear 17, thereby driving the second threaded screw 35 to rotate, thereby driving the second sliding block 34 to move in the opposite direction of the first connecting plate 32, thereby driving the second spur rack 36 to move, thereby 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 be moved to a position perpendicular to the water flow direction, and at the same time, when the first spur gear 18 rotates, the first rotating rod 19 is driven to rotate, thereby driving the cam 20 to rotate. When the protruding portion of the cam 20 is separated from the top of the circular ring 21, the circular ring 21 is pushed upward under the action of the first compression spring 25, thereby driving the first spur gear 26 to move upward, thereby driving the second spur gear 29 to rotate, thereby driving the second L-shaped plate 30 to rotate, thereby 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 flow can only enter from the water inlet on one side of the sleeve 38, thereby reducing the flow of water, thereby reducing the impact of the water flow on the water quality detector 47 inside the monitor housing 5, so that the impact force of the water flow is within the range that will not damage the water quality detector 47, thereby achieving the protection of the water quality detector 47 while also monitoring the water quality, thereby improving the overall practicality of the device; When the water flow is slow, the shielding plate 31 is opened, and the water flows in from the top of the monitor housing 5, and then enters the inner side 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, and at the same time enter the inner side of the butt joint 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 in the pipeline while cleaning the second filter screen on one side of the sleeve 38. When the water flow is fast, the monitor housing 5 rotates from the inclined state to the horizontal state. At this time, the first round tube 39 rotates and drives the spherical rod 43 to rotate, thereby driving the spherical rod 43 to rotate, so that the spherical rod 43 moves from the lowest point of the inclined surface 63 to the highest point. Under the action of the inclined surface 63, the spherical rod 43 is pushed downward, thereby driving the first one-way valve 46 to move downward, thereby docking the first one-way valve 46 with the water inlet of the water quality detector 47. At the same time, the second round tube 41 moves downward and drives the third spur rack 49 to move downward, thereby driving the fourth spur gear 51 to rotate, thereby driving the fourth spur 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 the water flow can enter the top of the partition plate 61 from the second one-way valve 58, thereby being discharged through the outlet pipe 64, and at the same time, it can be discharged to the first one-way valve 58 on the top of the monitor housing 5. A filter is flushed and cleaned in one direction and discharged through the outlet pipe 64. When the monitor housing 5 rotates from a horizontal state to a tilted state, the output end of the first drive 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 the second one-way valve 58 is docked with the docking pipe 57, so that water flows through the first filter into the monitor housing 5 and passes through the water quality detector 47. After detection, it flows into the sleeve 38 through the second one-way valve 58 and is discharged through the second filter on one side of the sleeve 38. In this way, during the angle switching process of the device, its water inlet position can respectively flush away impurities attached to the first filter and the second filter after switching, so as to ensure the cleanliness of the surface of the first filter and the second filter to avoid clogging, thereby improving the water flow rate, thereby improving the overall practicality of the device.

[0020] In addition, when the drain pipe does not change, the PLC controller can also control the output end of the first drive motor 14 to rotate forward and reverse, so as to automatically flush and clean the surface of the first filter screen and the second filter screen, thereby ensuring that the device can continue to perform detection, thereby improving the overall practicality of the device.

[0021] What is described above 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 scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-point water quality monitoring device for a drainage pipe, characterized in that: include: A drainage pipe (1), wherein two first connecting strips (2) are fixedly connected to the inner side of the drainage pipe (1), a mounting 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 mounting plate (3), four first filter screens 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 on the inner side of the partition plate (61); A point position switching mechanism, the point position switching mechanism is arranged on the top of the mounting plate (3) and is used to adjust the detection position, the point position switching mechanism comprises a fixing seat (7) fixedly connected to the top of the mounting plate (3), a limit strip (6) is fixedly connected to the inner side of the fixing seat (7), and the bottom of the limit strip (6) is fixedly connected to the mounting plate (3), and the outer wall of the limit strip (6) is slidably connected to a first sliding block (8); A rotation protection mechanism, the rotation protection mechanism being arranged on one side of the monitor housing (5); A channel switching mechanism, the channel switching mechanism being arranged on the inner side of the monitor housing (5); A cleaning mechanism, wherein the cleaning mechanism is arranged on the inner side of the monitor housing (5).

2. A multi-point water quality monitoring device for a drainage pipe according to claim 1, characterized in that: The point exchange mechanism further comprises a first protective shell (4) fixedly connected to the bottom of the mounting plate (3); a second drive motor (59) is fixedly connected to the inner side of the first protective shell (4); an output end of the second drive motor (59) passes through the top of the monitor housing (5) and is fixedly connected to a first threaded screw (9); the first sliding block (8) is threadedly connected to the outer wall of the first threaded 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 tightly attached to one side of the roller (12).

3. A multi-point water quality monitoring device for a drainage pipe according to claim 2, characterized in that: The rotation protection mechanism comprises a second protection shell (15) fixedly connected to one side of the rectangular plate (10), a first drive motor (14) being installed on the inner side of the second protection shell (15), an output end of the first drive motor (14) passing through the other side of the rectangular plate (10) and fixedly connected to a rotation shaft (13), and one end of the rotation shaft (13) is fixedly connected to the monitor housing (5).

4. A multi-point water quality monitoring device for a drainage pipe according to claim 3, characterized in that: The channel switching mechanism comprises a first circular tube (39) rotatably connected to the inner side of the monitor housing (5), and the first circular tube (39) penetrates to the top of the monitor housing (5) and is fixedly connected to a sleeve (38), a second filter screen is fixedly connected to a 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), an outer wall of the first rectangular bar (33) is slidably connected to a second sliding block (34), one end of the second sliding block (34) is fixedly connected to a second spur rack (36), and an outer wall of the first circular tube (39) is fixedly connected to a third spur gear (37), and the third spur gear (37) is meshed with the second spur rack (36).

5. A multi-point water quality monitoring device for a drainage pipe according to claim 4, characterized in that: The channel switching mechanism further comprises a second connecting bar (16) fixedly connected to one side of the rectangular plate (10), one end of the second connecting bar (16) being fixedly connected to a ring gear (17), a first rotating rod (19) being rotatably connected to the inner side of the monitor housing (5), one end of the first rotating rod (19) passing through one side of the monitor housing (5) and being fixedly connected to a first spur gear (18), a latching tooth meshing with the first spur gear (18) being provided at a local position of the ring gear (17), one end of the first rotating rod (19) being fixedly connected to a second threaded screw (35), and the second sliding block (34) being threadedly connected to the outer wall of the second threaded screw (35), and a shielding component being provided at the top of the monitor housing (5).

6. A multi-point water quality monitoring device for a drainage pipe according to claim 5, characterized in that: The shielding assembly comprises a cam (20) fixedly connected to the outer wall of the first rotating rod (19); the outer wall of the first protective shell (4) is fixedly connected to four groups of first connecting seats (27); each group of first connecting seats (27) is provided with two; second L-shaped plates (30) are provided on the inner sides of the two first connecting seats (27); second rotating rods (28) are fixedly connected on both sides of the second L-shaped plates (30); one end of the two second rotating rods (28) respectively penetrates through one side of the two first connecting seats (27) and is fixedly connected to a second spur gear (29); one side of the second spur gear (29) is meshed with A first straight rack (26) is provided, the outer wall of the monitor housing (5) is fixedly connected to a fixing plate (23), the top of the fixing plate (23) is fixedly connected to a first limiting rod (24), the outer wall of the first limiting rod (24) is slidably connected to a first L-shaped plate (22), and a first compression spring (25) is installed between the first L-shaped plate (22) and the fixing plate (23), the top of the first L-shaped plate (22) is fixedly connected to a circular ring (21), and the circular ring (21) is fixedly connected to the first straight rack (26), and one end of the second L-shaped plate (30) is fixedly connected to a shielding plate (31).

7. A multi-point water quality monitoring device for a drainage pipe according to claim 6, characterized in that: The cleaning mechanism comprises 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 groove (44); a first non-return 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); a slope (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 slope (63).

8. A multi-point water quality monitoring device for a drainage pipe according to claim 7, characterized in that: The cleaning mechanism further comprises 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) being fixedly connected to a third spur rack (49), the top of the partition plate (61) being fixedly connected to two second connecting seats (50), the inner side of the second connecting seat (50) being rotatably connected to a fourth spur gear (51), and the third spur rack (49) being meshed with the fourth spur gear (51), the top of the partition plate (61) being fixedly connected to a second rectangular bar (53), the outer wall of the second rectangular bar (53) being slidably connected to a third connecting plate (54), and one side of the third connecting plate (54) being fixedly connected to a fourth spur rack ( 52), and the fourth spur rack (52) is meshed with the fourth spur gear (51), two second limit rods (56) are fixedly connected to the inner side of the monitor housing (5), a butt joint 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 butt joint 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 overlapped on the outer wall of the second limit rod (56), and a second one-way valve (58) is installed on the inner side of the partition plate (61), and a water outlet pipe (64) is fixedly connected to the water outlet of the shielding plate (31).

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