Drainage network flow monitoring device

Abstract

The present invention belongs to the technical field of water flow detection equipment, specifically a drainage network flow monitoring device. It solves the problem in the prior art that impurities attached to the probe surface during heavy rain weather easily lead to large errors in the measurement results. It includes a mounting tube, a probe is arranged inside the mounting tube, and the probe is an ultrasonic flow meter; a mounting plate is arranged inside the mounting tube, the probe is mounted on the mounting plate, a bracket is fixedly mounted on the mounting plate, and a rotating rod is rotatably mounted on the bracket; a scraper bar, a rotating rod, a sleeve, a magnet, a baffle, a mounting plate, and an elastic membrane are arranged; because the magnetic properties of the ends of the two magnets that are away from each other are different, the forces applied to the vertical plate by the ends of the two magnets that are away from each other are different, so that the vertical plate can drive the sleeve to quickly reciprocate on the rotating rod, and in this process, the rubber strip can scrape off the impurities on the probe surface; thereby improving the accuracy of the measurement and reducing the influence of impurities on the probe surface on the measurement results.

Description

Technical Field

[0001] The invention belongs to the technical field of water flow detection equipment, and in particular relates to a drainage pipe network flow monitoring device. Background Art

[0002] Drainage pipes refer to the system composed of pipes and their ancillary facilities that collect and discharge sewage, wastewater and rainwater; they include main pipes, branch pipes and pipes leading to treatment plants. No matter whether they are built on the streets or anywhere else, as long as they serve the purpose of drainage, they should be counted as drainage pipes. The drainage network composed of drainage pipes is the drainage network.

[0003] Flow monitoring is to monitor the flow of water in a pipe. In order to calculate whether the pollution load of the water body exceeds the environmental capacity and evaluate the control effect, and to grasp the total amount of pollutants discharged by the pollution source and the discharge volume, it is necessary to monitor the flow of the corresponding water body. The equipment for monitoring flow usually includes an ultrasonic flow meter. In order to filter the water flow, a filter is usually installed inside the pipe. However, the filter inside the existing flow meter is not easy to clean. Once the surface of the filter is clogged too much, it is easy to affect the flow rate of the water. In addition, when a leak occurs between the existing flow meter pipe and the water pipe connection, the water flow time in the pipe is arbitrary, and it is not convenient for the staff to check the pipe connection all the time.

[0004] The existing patent (Announcement No.: CN220104199U) is a drainage flow monitoring device that can filter and collect impurities in the water before drainage flow monitoring to minimize the impact on the use of the flow detector.

[0005] Although the above patent can improve the accuracy of flow monitoring by cleaning impurities in water, it still has the following shortcomings:

[0006] When measuring the water flow in the sewer network during heavy rain, the mud on the ground is carried into the sewer network by the water flow. At this time, the measuring instrument located below the water surface will be impacted by the mud flowing with the water flow. Long-term impact will cause the dust adhering to the surface of the measuring head to gradually increase, so that the measurement error increases or the measuring device is damaged. Summary of the invention

[0007] In order to solve the problem in the prior art that the measuring instrument located below the water surface will be impacted by the mud and sand flowing with the water flow, and long-term impact will cause the dust adhering to the surface of the measuring head to gradually increase, thereby increasing the measurement error, the present invention provides a drainage network flow monitoring device, which reduces the measurement error by timely cleaning the probe.

[0008] To achieve the above purpose, the specific technical solution is as follows:

[0009] A drainage pipe network flow monitoring device comprises a mounting pipe, wherein a probe is arranged inside the mounting pipe, and the probe is an ultrasonic flow meter;

[0010] A mounting plate is provided in the mounting tube, the probe is mounted on the mounting plate, a bracket is fixedly mounted on the mounting plate, a rotating rod is rotatably mounted on the bracket, a sliding sleeve is movable on the rotating rod, a scraper is fixedly mounted on the sliding sleeve, the scraper is used to scrape the probe surface clean, and a driving mechanism cooperating with the sliding sleeve is provided on the mounting plate;

[0011] A sliding groove is provided on the inner top wall of the mounting tube, the mounting plate is slidably mounted in the sliding groove, and the probe is mounted on the mounting plate, an elastic membrane is fixedly mounted between the side wall of the mounting plate and the side wall of the sliding groove, the elastic membrane is used to drive the mounting plate to reset, and a guide rod that slides with the mounting plate is fixedly mounted in the sliding groove.

[0012] Furthermore, the scraper strip includes a vertical plate and a rubber strip, the vertical plate is provided with a cavity, a drainage hole is provided on a side wall of the cavity, and a spoiler mechanism is provided in the drainage hole;

[0013] The spoiler mechanism includes an elastic rope fixedly mounted on the side wall of the cavity, a blocking block matched with the drainage hole is fixedly mounted on the end of the elastic rope, and the blocking block is spherical, and a water supply mechanism matched with the cavity is provided on the mounting plate.

[0014] Furthermore, the water supply mechanism includes a water bag fixedly installed between the side wall of the slide groove and the mounting plate, the output end of the water bag extends into the cavity, and the output end of the water bag is made of elastic material.

[0015] Furthermore, the driving mechanism includes a baffle evenly fixedly mounted on the rotating rod, two magnets are symmetrically mounted on the end of the rotating rod, the magnetic poles of the two adjacent ends of the magnets are the same, and the vertical plate is made of magnetic material.

[0016] When water flows in the installation pipe, the water flow impacts the baffle, thereby driving the rotating rod to rotate, and driving the magnet to rotate during the rotation of the rotating rod. Since the magnetic properties of the two magnets at the ends away from each other are different, the forces exerted on the vertical plate at the ends away from each other are different, one is a repulsive force and the other is an attractive force, so that the vertical plate can drive the sliding sleeve to quickly reciprocate on the rotating rod. In this process, the rubber strip can scrape off impurities on the surface of the probe, thereby improving the accuracy of the data detected by the probe.

[0017] When the water flows along the mounting tube, the water has a certain impact force on the mounting plate and the probe. When the impact force is balanced with the elastic force of the elastic membrane, the elastic membrane will no longer move. When the water flow speed changes, the impact force on the mounting plate and the probe will also change. At this time, the elastic membrane will be deformed, and the mounting plate will squeeze the water bag. At this time, the water in the water bag flows into the cavity, and the water in the cavity impacts the blocking block. Under the action of the impact force, the blocking block is out of contact with the drainage hole, and the elastic rope is in a stretched state. Since the degree of squeezing of the water bag changes at any time, the water flow speed discharged from the drainage hole also changes. Therefore, the impact force on the blocking block also changes. Therefore, the blocking block will shake and hit the rubber strip, causing the rubber strip to shake, and timely shake off the impurities cleaned from the probe surface and attached to the surface of the rubber strip, thereby ensuring that the rubber strip can work normally, and also preventing impurities from being stuck in the gap between the rubber strip and the probe, thereby reducing the degree of wear of the probe.

[0018] Furthermore, a filter screen is embedded on the elastic membrane, and a water inlet valve is fixedly installed on the input end of the water bag.

[0019] The water flowing in the installation pipe will gradually pass through the filter and flow into the chute, thereby ensuring that the input end of the water bag can absorb water normally during the recovery of the water bag, that is, ensuring that the water bag can supply water to the cavity.

[0020] When the water bag is stretched, the inside of the water bag is in a negative pressure state. At this time, the elastic rope pulls the blocking block to block the drainage hole. Therefore, the water bag can only absorb water from the chute through the water inlet valve, thereby preparing for water supply to the cavity.

[0021] Since the slide groove is located on the top wall of the mounting tube, impurities attached to the bottom wall of the filter will automatically break away from the filter under the action of gravity, thereby ensuring that the water bag can absorb water normally; at the same time, under the action of the elastic membrane, the filter can shake, thereby shaking off the impurities on the bottom wall of the filter, further improving the cleaning effect of the filter.

[0022] By placing the water bag in the chute and filling the chute with clean water under the action of the filter, the mounting plate and the guide rod can be lubricated, thereby ensuring that the mounting plate can move normally, and thus ensuring that the elastic membrane can absorb energy normally when the probe is hit by a heavy object.

[0023] Furthermore, an annular groove is formed on the sliding sleeve, and a conduit communicating with the cavity is inserted into the side wall of the annular groove.

[0024] Under the action of the conduit, part of the water in the cavity flows into the annular groove. At this time, the annular groove is in a high-pressure state, and the water in the annular groove flows outward through the gap between the sliding sleeve and the rotating rod, thereby reducing the friction force on the sliding sleeve and ensuring that the sliding sleeve can move normally.

[0025] Furthermore, holes are evenly formed on the top wall of the mounting plate, and elastic rods cooperating with the holes are fixedly mounted on the top wall of the slide slot.

[0026] In the initial state, the elastic rod is in the hole, and the elastic rod is tightly fitted with the side wall of the hole, which can hinder the movement of the mounting plate and improve the stability of the mounting plate and the probe; in the process of movement of the mounting plate, the elastic rod bends and the bottom end of the elastic rod moves along the top wall of the mounting plate, and when the bottom end of the elastic rod enters the adjacent hole again, the bent elastic rod recovers, and the recovered elastic rod hits the side wall of the hole, so that the mounting plate is subjected to impact force, and the mounting plate vibrates at this time, thereby improving the cleaning effect of the filter, and can assist the rubber strip in cleaning impurities on the surface of the probe, thereby improving the measurement accuracy.

[0027] Preferably, the bottom wall of the sliding sleeve is a plane, a limiting rod is fixedly mounted on the bracket, and the top wall of the limiting rod is in contact with the bottom wall of the sliding sleeve.

[0028] Under the joint action of the limit rod and the plane of the bottom wall of the sleeve, the movement path of the sleeve can be limited during the rotation of the rotating rod, preventing the sleeve from rotating, ensuring that the scraper strip on the sleeve can fit the probe, thereby ensuring the cleaning effect.

[0029] Preferably, the cross section of the magnet is rhombus-shaped.

[0030] Under the action of the rhombus, the resistance of the magnet is reduced, thereby reducing the resistance of the rotating rod during the rotation process, and ensuring that the baffle can normally drive the rotating rod to rotate.

[0031] Compared with the prior art, the beneficial effects of the present invention are at least:

[0032] 1. By setting a scraper strip, a rotating rod, a sleeve, a magnet, a baffle, a mounting plate, and an elastic membrane; when water flows in the mounting pipe, the water impacts the baffle, thereby driving the rotating rod to rotate, and driving the magnet to rotate during the rotation of the rotating rod. Since the magnetic properties of the ends of the two magnets that are away from each other are different, the forces exerted on the vertical plate by the ends of the two magnets that are away from each other are different, which can make the vertical plate drive the sleeve to quickly reciprocate on the rotating rod. In this process, the rubber strip can scrape off impurities on the surface of the probe; thereby improving the measurement accuracy and reducing the influence of impurities on the probe surface on the measurement results.

[0033] 1. By setting the cavity, drainage hole, elastic rope and blocking block; the mounting plate squeezes the water bag, and the water in the water bag flows into the cavity, and the water in the cavity impacts the blocking block. Under the action of the impact force, the blocking block is out of contact with the drainage hole, and the elastic rope is in a stretched state. Since the degree of squeezing of the water bag changes at any time, the water flow velocity discharged from the drainage hole also changes, so the impact force on the blocking block also changes, so the blocking block will shake and hit the rubber strip, causing the rubber strip to shake, and the impurities cleaned from the probe surface and attached to the surface of the rubber strip will be shaken off in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 is a first cross-sectional view of the present invention;

[0036] Figure 3 The present invention Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0037] Figure 4 is a second cross-sectional view of the present invention;

[0038] Figure 5 It is a schematic diagram of the combined structure of the sliding sleeve and the scraper strip of the present invention;

[0039] Figure 6 It is a combined diagram of the vertical plate and the sliding sleeve of the present invention.

[0040] In the figure: 1. mounting tube; 2. probe; 3. mounting plate; 4. bracket; 5. rotating rod; 6. sliding sleeve; 7. scraper strip; 701. vertical plate; 702. rubber strip; 8. slide groove; 9. elastic membrane; 10. guide rod; 11. cavity; 12. drainage hole; 13. elastic rope; 14. blocking block; 15. water bag; 16. baffle; 17. magnet; 18. filter; 19. water inlet valve; 20. annular groove; 21. conduit; 22. hole; 23. elastic rod; 24. plane; 25. limit rod. Implementation

[0041] 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.

[0042] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a drainage network flow monitoring device.

[0043] In a typical implementation of the present application, Figure 1-6 As shown, a drainage network flow monitoring device comprises a mounting pipe 1, wherein a probe 2 is arranged inside the mounting pipe 1, and the probe 2 is an ultrasonic flow meter;

[0044] A mounting plate 3 is provided in the mounting tube 1, the probe 2 is mounted on the mounting plate 3, a bracket 4 is fixedly mounted on the mounting plate 3, a rotating rod 5 is rotatably mounted on the bracket 4, a sliding sleeve 6 is movably sleeved on the rotating rod 5, a scraper 7 is fixedly mounted on the sliding sleeve 6, the scraper 7 is used to scrape the surface of the probe 2 clean, and a driving mechanism cooperating with the sliding sleeve 6 is provided on the mounting plate 3;

[0045] A slide groove 8 is provided on the inner top wall of the mounting tube 1, the mounting plate 3 is slidably mounted in the slide groove 8, and the probe 2 is mounted on the mounting plate 3, an elastic membrane 9 is fixedly installed between the side wall of the mounting plate 3 and the side wall of the slide groove 8, the elastic membrane 9 is used to drive the mounting plate 3 to reset, and a guide rod 10 that slides with the mounting plate 3 is fixedly installed in the slide groove 8.

[0046] The scraper strip 7 includes a vertical plate 701 and a rubber strip 702. A cavity 11 is formed on the vertical plate 701. A drainage hole 12 is formed on the side wall of the cavity 11. A spoiler mechanism is provided in the drainage hole 12.

[0047] The spoiler mechanism includes an elastic rope 13 fixedly mounted on the side wall of the cavity 11, and a blocking block 14 matching the drainage hole 12 is fixedly mounted on the end of the elastic rope 13, and the blocking block 14 is spherical, and a water supply mechanism matching the cavity 11 is provided on the mounting plate 3.

[0048] The water supply mechanism includes a water bag 15 fixedly installed between the side wall of the chute 8 and the mounting plate 3. The output end of the water bag 15 extends into the cavity 11, and the output end of the water bag 15 is made of elastic material.

[0049] The driving mechanism includes a baffle 16 evenly fixedly mounted on the rotating rod 5. Two magnets 17 are symmetrically mounted on the end of the rotating rod 5. The magnetic poles of the two adjacent ends of the two magnets 17 are the same, and the vertical plate 701 is made of magnetic material.

[0050] When water flows in the installation pipe 1, the water flow impacts the baffle 16, thereby driving the rotating rod 5 to rotate, and driving the magnet 17 to rotate during the rotation of the rotating rod 5. Since the magnetic properties of the two magnets 17 at the ends away from each other are different, the two magnets 17 at the ends away from each other apply different forces to the vertical plate 701, one is a repulsive force and the other is an attractive force, so that the vertical plate 701 can drive the sliding sleeve 6 to quickly reciprocate on the rotating rod 5. In this process, the rubber strip 702 can scrape off impurities on the surface of the probe 2, thereby improving the accuracy of the data detected by the probe 2.

[0051] When the water flows along the mounting tube 1, the water has a certain impact force on the mounting plate 3 and the probe 2. When the impact force is balanced with the elastic force of the elastic membrane 9, the elastic membrane 9 will no longer move. When the water flow speed changes, the impact force on the mounting plate 3 and the probe 2 will also change. At this time, the elastic membrane 9 will be deformed, and the mounting plate 3 squeezes the water bag 15. At this time, the water in the water bag 15 flows into the cavity 11, and the water in the cavity 11 impacts the blocking block 14. Under the action of the impact force, the blocking block 14 is out of contact with the drainage hole 12, and the elastic rope 13 is in a stretched state. Since the degree of squeezing of the water bag 15 changes at any time, the water flow velocity discharged from the drainage hole 12 also changes, so the impact force on the blocking block 14 also changes, so the blocking block 14 will shake and hit the rubber strip 702, causing the rubber strip 702 to shake, and timely shake off the impurities cleaned from the surface of the probe 2 and attached to the surface of the rubber strip 702, which plays a role in ensuring that the rubber strip 702 can work normally, and can also prevent impurities from being stuck in the gap between the rubber strip 702 and the probe 2, which plays a role in reducing the wear of the probe 2. Impurities on the top wall of the rotating rod 5 in the rotating state can also be thrown away or fall down during the rotation of the rotating rod 5, which plays a role in ensuring that the sliding sleeve 6 can move normally.

[0052] Furthermore, when heavier impurities in the water hit the probe 2 , the elastic membrane 9 can absorb part of the impact force under the action of the elastic membrane 9 , thereby playing a role in protecting the probe 2 .

[0053] like Figure 4 As shown, a filter screen 18 is embedded on the elastic membrane 9 , and a water inlet valve 19 is fixedly installed on the input end of the water bag 15 .

[0054] The water flowing in the installation pipe 1 will gradually pass through the filter 18 and flow into the chute 8, thereby ensuring that the input end of the water bag 15 can absorb water normally during the recovery process of the water bag 15, that is, ensuring that the water bag 15 can supply water to the cavity 11.

[0055] When the water bag 15 is stretched, the water bag 15 is in a negative pressure state. At this time, the elastic rope 13 pulls the blocking block 14 to block the drainage hole 12. Therefore, the water bag 15 can only absorb water from the chute 8 through the water inlet valve 19, thereby preparing for the water supply to the cavity 11.

[0056] Since the slide groove 8 is located on the top wall of the mounting tube 1, impurities attached to the bottom wall of the filter 18 will automatically break away from the filter 18 under the action of gravity, thereby ensuring that the water bag 15 can absorb water normally; at the same time, under the action of the elastic membrane 9, the filter 18 can shake, thereby shaking off the impurities on the bottom wall of the filter 18, further improving the cleaning effect of the filter 18.

[0057] By setting the water bag 15 in the chute 8 and filling the chute 8 with clean water under the action of the filter 18, the mounting plate 3 and the guide rod 10 can be lubricated, thereby ensuring that the mounting plate 3 can move normally, and thus when the probe 2 is hit by a heavy object, it plays a role in ensuring that the elastic membrane 9 can absorb energy normally.

[0058] like Figure 6 As shown, an annular groove 20 is formed on the sliding sleeve 6 , and a conduit 21 communicating with the cavity 11 is inserted on the side wall of the annular groove 20 .

[0059] Under the action of the conduit 21, part of the water in the cavity 11 flows into the annular groove 20. At this time, the annular groove 20 is in a high-pressure state, and the water in the annular groove 20 flows outward through the gap between the sliding sleeve 6 and the rotating rod 5, thereby reducing the friction force on the sliding sleeve 6 and ensuring that the sliding sleeve 6 can move normally.

[0060] like Figure 4 As shown, holes 22 are evenly formed on the top wall of the mounting plate 3 , and elastic rods 23 cooperating with the holes 22 are fixedly mounted on the top wall of the slide slot 8 .

[0061] In the initial state, the elastic rod 23 is in the hole 22, and the elastic rod 23 is tightly fitted with the side wall of the hole 22, which can hinder the movement of the mounting plate 3, thereby improving the stability of the mounting plate 3 and the probe 2; during the movement of the mounting plate 3, the elastic rod 23 bends and the bottom end of the elastic rod 23 moves along the top wall of the mounting plate 3, and when the bottom end of the elastic rod 23 enters the adjacent hole 22 again, the bent elastic rod 23 is restored, and the restored elastic rod 23 hits the side wall of the hole 22, so that the mounting plate 3 is subjected to impact force, and the mounting plate 3 vibrates at this time, thereby improving the cleaning effect of the filter 18, and can assist the rubber strip 702 in cleaning impurities on the surface of the probe 2, thereby improving the measurement accuracy.

[0062] like Figure 5As shown, the bottom wall of the sliding sleeve 6 is a plane 24 , and a limiting rod 25 is fixedly mounted on the bracket 4 , and the top wall of the limiting rod 25 is in contact with the bottom wall of the sliding sleeve 6 .

[0063] Under the joint action of the limit rod 25 and the plane 24 of the bottom wall of the sleeve 6, the movement path of the sleeve 6 can be limited during the rotation of the rotating rod 5, preventing the sleeve 6 from rotating, ensuring that the scraper strip 7 on the sleeve 6 can fit with the probe 2, thereby ensuring the cleaning effect.

[0064] like Figure 5 As shown, the cross section of the magnet 17 is rhombus-shaped.

[0065] Under the action of the rhombus, the resistance of the magnet 17 is reduced, thereby reducing the resistance of the rotating rod 5 during the rotation process, and ensuring that the baffle 16 can normally drive the rotating rod 5 to rotate.

[0066] Working principle of the present invention: when in use, when water flows in the installation pipe 1, the water flow impacts the baffle 16, thereby driving the rotating rod 5 to rotate, and driving the magnet 17 to rotate during the rotation of the rotating rod 5. Since the magnetic properties of the two magnets 17 at the ends away from each other are different, the two magnets 17 at the ends away from each other apply different forces to the vertical plate 701, one is a repulsive force and the other is an attractive force, so that the vertical plate 701 can drive the sliding sleeve 6 to quickly reciprocate on the rotating rod 5. In this process, the rubber strip 702 can scrape off impurities on the surface of the probe 2, thereby improving the accuracy of the data detected by the probe 2.

[0067] When the water flows along the mounting tube 1, the water has a certain impact force on the mounting plate 3 and the probe 2. When the impact force is balanced with the elastic force of the elastic membrane 9, the elastic membrane 9 will no longer move. When the water flow speed changes, the impact force on the mounting plate 3 and the probe 2 will also change. At this time, the elastic membrane 9 will be deformed, and the mounting plate 3 squeezes the water bag 15. At this time, the water in the water bag 15 flows into the cavity 11, and the water in the cavity 11 impacts the blocking block 14. Under the action of the impact force, the blocking block 14 is out of contact with the drainage hole 12, and the elastic rope 13 is in a stretched state. Since the degree of squeezing of the water bag 15 changes at any time, the water discharged from the drainage hole 12 The water flow speed also changes, so the impact force on the blocking block 14 also changes. Therefore, the blocking block 14 will shake and hit the rubber strip 702, causing the rubber strip 702 to shake, and timely shake off the impurities cleaned from the surface of the probe 2 and attached to the surface of the rubber strip 702, thereby ensuring that the rubber strip 702 can work normally, and also preventing impurities from being stuck in the gap between the rubber strip 702 and the probe 2; the water flowing in the installation tube 1 will gradually pass through the filter 18 and flow into the chute 8, so that during the recovery process of the water bag 15, it can be ensured that the input end of the water bag 15 can absorb water normally, that is, to ensure that the water bag 15 can supply water to the cavity 11. In the initial state, the elastic rod 23 is in the hole 22, and the elastic rod 23 is tightly fitted with the side wall of the hole 22, which can hinder the movement of the mounting plate 3, thereby improving the stability of the mounting plate 3 and the probe 2; during the movement of the mounting plate 3, the elastic rod 23 bends and the bottom end of the elastic rod 23 moves along the top wall of the mounting plate 3, and when the bottom end of the elastic rod 23 enters the adjacent hole 22 again, the bent elastic rod 23 is restored, and the restored elastic rod 23 hits the side wall of the hole 22, so that the mounting plate 3 is subjected to impact force, and the mounting plate 3 vibrates at this time, thereby improving the cleaning effect of the filter 18, and can assist the rubber strip 702 in cleaning impurities on the surface of the probe 2, thereby improving the measurement accuracy.

[0068] When the water bag 15 is stretched, the water bag 15 is in a negative pressure state. At this time, the elastic rope 13 pulls the blocking block 14 to block the drainage hole 12, so the water bag 15 can only absorb water from the slide groove 8 through the water inlet valve 19. Under the action of the conduit 21, part of the water in the cavity 11 flows into the annular groove 20. At this time, the annular groove 20 is in a high pressure state, and the water in the annular groove 20 flows outward through the gap between the sliding sleeve 6 and the rotating rod 5, thereby reducing the friction force on the sliding sleeve 6.

[0069] Since the chute 8 is located on the top wall of the mounting tube 1, the impurities attached to the bottom wall of the filter 18 will automatically break away from the filter 18 under the action of gravity, thereby ensuring that the water bag 15 can absorb water normally; at the same time, under the action of the elastic membrane 9, the filter 18 can shake, thereby shaking off the impurities on the bottom wall of the filter 18; by setting the water bag 15 in the chute 8 and filling the chute 8 with clean water under the action of the filter 18, the mounting plate 3 and the guide rod 10 can be lubricated, thereby ensuring that the mounting plate 3 can move normally, thereby ensuring that the elastic membrane 9 can absorb energy normally when the probe 2 is hit by a heavy object. Under the joint action of the limit rod 25 and the plane 24 of the bottom wall of the sliding sleeve 6, the moving path of the sliding sleeve 6 can be limited during the rotation of the rotating rod 5, preventing the sliding sleeve 6 from rotating, ensuring that the scraper 7 on the sliding sleeve 6 can fit with the probe 2, and ensuring the cleaning effect.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage pipe network flow monitoring device, comprising a mounting pipe (1), wherein a probe (2) is arranged inside the mounting pipe (1), and the probe (2) is an ultrasonic flow meter; characterized in that: A mounting plate (3) is provided inside the mounting tube (1), the probe (2) is mounted on the mounting plate (3), a bracket (4) is fixedly mounted on the mounting plate (3), a rotating rod (5) is rotatably mounted on the bracket (4), a sliding sleeve (6) is movably mounted on the rotating rod (5), a scraper (7) is fixedly mounted on the sliding sleeve (6), the scraper (7) is used to scrape the surface of the probe (2) clean, and a driving mechanism cooperating with the sliding sleeve (6) is provided on the mounting plate (3); A slide groove (8) is provided on the inner top wall of the mounting tube (1), the mounting plate (3) is slidably mounted in the slide groove (8), and the probe (2) is mounted on the mounting plate (3), an elastic membrane (9) is fixedly mounted between the side wall of the mounting plate (3) and the side wall of the slide groove (8), the elastic membrane (9) is used to drive the mounting plate (3) to reset, and a guide rod (10) is fixedly mounted in the slide groove (8) and is slidably matched with the mounting plate (3); The driving mechanism comprises a baffle (16) evenly fixedly mounted on the rotating rod (5); two magnets (17) are symmetrically mounted on the end of the rotating rod (5); the magnetic poles of the adjacent ends of the two magnets (17) are the same; and the vertical plate (701) is made of magnetic material; When water flows in the installation pipe (1), the water impacts the baffle (16), thereby driving the rotating rod (5) to rotate. During the rotation of the rotating rod (5), the magnet (17) is driven to rotate. Since the magnetic properties of the ends of the two magnets (17) that are away from each other are different, the forces exerted on the vertical plate (701) by the ends of the two magnets (17) that are away from each other are different, one is a repulsive force and the other is an attractive force. Therefore, the vertical plate (701) can drive the sliding sleeve (6) to quickly reciprocate on the rotating rod (5). The rubber strip (702) can scrape impurities on the surface of the probe (2), thereby improving the accuracy of the data detected by the probe (2).

2. A drainage network flow monitoring device according to claim 1, characterized in that: The scraper strip (7) comprises a vertical plate (701) and a rubber strip (702); a cavity (11) is provided on the vertical plate (701); a drainage hole (12) is provided on a side wall of the cavity (11); a spoiler mechanism is provided in the drainage hole (12); The flow-disturbing mechanism comprises an elastic rope (13) fixedly mounted on the side wall of the cavity (11); a blocking block (14) matching the drainage hole (12) is fixedly mounted on the end of the elastic rope (13); the blocking block (14) is spherical; and a water supply mechanism matching the cavity (11) is provided on the mounting plate (3).

3. A drainage pipe network flow monitoring device according to claim 2, characterized in that: The water supply mechanism comprises a water bag (15) fixedly mounted between the side wall of the chute (8) and the mounting plate (3), the output end of the water bag (15) extending into the cavity (11), and the output end of the water bag (15) is made of elastic material.

4. A drainage network flow monitoring device according to claim 3, characterized in that: A filter screen (18) is embedded on the elastic membrane (9), and a water inlet valve (19) is fixedly installed on the input end of the water bag (15).

5. A drainage network flow monitoring device according to claim 4, characterized in that: The sliding sleeve (6) is provided with an annular groove (20), and a conduit (21) communicating with the cavity (11) is inserted into the side wall of the annular groove (20).

6. A drainage network flow monitoring device according to claim 5, characterized in that: Holes (22) are evenly arranged on the top wall of the mounting plate (3), and elastic rods (23) matching the holes (22) are fixedly mounted on the top wall of the slide groove (8).

7. A drainage network flow monitoring device according to claim 6, characterized in that: The bottom wall of the sliding sleeve (6) is a plane (24), a limiting rod (25) is fixedly mounted on the bracket (4), and the top wall of the limiting rod (25) is in contact with the bottom wall of the sliding sleeve (6).

8. A drainage pipe network flow monitoring device according to claim 7, characterized in that: The cross section of the magnet (17) is rhombus-shaped.

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