Drainage pipe network monitoring flowmeter based on radar electromagnetism

Abstract

The invention relates to the technical field of water flow measurement, in particular to a drainage pipe network monitoring flowmeter based on radar electromagnetism, which comprises a mounting plate, a mounting groove is formed in the bottom surface of the mounting plate, a mounting structure is arranged in the mounting groove of the mounting plate, and a monitoring flowmeter is mounted in the mounting groove of the mounting plate through the mounting structure. The mounting structure comprises two grooves formed in the opposite sides of the mounting groove of the mounting plate, clamping blocks are slidably connected into the grooves, 45-degree chamfers are formed in the bottoms of the side faces of the clamping blocks, movable rods are fixedly connected to the other sides of the clamping blocks, and the ends, penetrating and extending out of the mounting plate, of the movable rods are fixedly connected with pulling plates. According to the drainage pipe network monitoring flowmeter based on radar electromagnetism, dismounting and mounting of the monitoring flowmeter can be completed, and meanwhile when a drainage pipe network is converted into a non-full-pipe state from a full-pipe state or converted into the full-pipe state from the non-full-pipe state, impurities on the surface of the monitoring flowmeter can be scraped away through the scraping rod.

Description

Technical Field

[0001] The invention relates to the technical field of water flow measurement, and in particular to a drainage pipe network monitoring flow meter based on radar electromagnetics. Background Art

[0002] The radar electromagnetic flowmeter is a flow measurement device that combines contact and non-contact methods. It is mainly composed of four parts: radar flowmeter, electromagnetic flowmeter, radar water level meter and pressure water level meter. The radar and electromagnetic flowmeter use the Doppler effect principle and electromagnetic Faraday principle to measure the surface velocity and cross-sectional velocity of the fluid respectively. They are suitable for water flow monitoring in scenarios where the pipe is not full, the pipe is full, and the two states are switched back and forth.

[0003] Since radar electromagnetic flowmeters are often used to measure water flow in drainage networks, when the drainage network is in a full pipe state, the water flow area is equal to the pipe diameter area. The electromagnetic flowmeter calculates the flow rate based on the measured flow velocity and water flow area. At this time, the radar electromagnetic flowmeter will come into contact with the sewage. After the radar electromagnetic flowmeter has been working for a long time, impurities in the sewage will be adsorbed on the surface of the radar electromagnetic flowmeter, thereby affecting the sensitivity of the sensor in the radar electromagnetic flowmeter.

[0004] In order to solve the above problems, we made improvements and proposed a drainage network monitoring flow meter based on radar electromagnetics. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a drainage pipe network monitoring flow meter based on radar electromagnetic, comprising a mounting plate, a mounting groove is provided on the bottom surface of the mounting plate, a mounting structure is provided inside the mounting groove of the mounting plate, a monitoring flow meter is installed inside the mounting groove of the mounting plate through the mounting structure, the mounting structure comprises two grooves provided on opposite sides of the mounting groove of the mounting plate, a card block is slidably connected inside the groove, a forty-five-degree chamfer is provided at the bottom of the side surface of the card block, a movable rod is fixedly connected to the other side of the card block, and a pull plate is fixedly connected to one end of the movable rod extending through the mounting plate outside;

[0007] A cleaning assembly is installed on the bottom surface of the mounting plate, and the cleaning assembly includes two protective shells symmetrically fixedly installed on the bottom surface of the mounting plate, a first L-shaped plate is slidably installed inside each of the protective shells, a second L-shaped plate is slidably installed on the bottom surface of the first L-shaped plate, a rotating rod is rotatably connected to the side of the second L-shaped plate, an end of the rotating rod close to the monitoring flow meter is fixedly connected to a rotating plate, a scraper rod is fixedly connected between the two rotating plates, the other end of the rotating rod is coaxially fixedly connected to a spur gear, a first rack is fixedly connected to the top surface of the first L-shaped plate, and the first rack is meshed with the spur gear;

[0008] The inner wall of the protective shell is rotatably connected with a driving pulley and a driven pulley, a transmission belt is transmission-connected between the driving pulley and the driven pulley, a support plate is fixedly connected to the side of the first L-shaped plate, and the support plate is fixedly connected to the transmission belt, a rotating shaft rotatably connected to the protective shell is coaxially fixedly connected between the two driving pulleys, and a driven gear is coaxially fixedly connected to the outer wall of the rotating shaft;

[0009] A vertical slot is formed on the top surface of the mounting plate, a vertical plate is slidably connected inside the vertical slot, a second rack meshing with a driven gear is fixedly connected to the side of the vertical plate, and a floating plate is fixedly connected to the bottom end of the vertical plate.

[0010] As a preferred technical solution of the present invention, a return spring is fixedly connected between the clamping block and the inner wall of the mounting groove of the mounting plate, and the return spring is sleeved on the outside of the movable rod, and a chamfer is provided on the side of the pull plate away from the mounting plate;

[0011] The upper parts of both sides of the monitoring flow meter are symmetrically provided with card slots, and the card slots can be card-connected with the card blocks.

[0012] As a preferred technical solution of the present invention, the bottom surface of the first L-shaped plate is fixedly connected with a first guide rail, the first guide rail is slidably connected to the second L-shaped plate, and both ends of the first guide rail are fixedly connected with limit stops.

[0013] As a preferred technical solution of the present invention, a positioning slide bar is fixedly connected between opposite sides of the protective shell, the slide bar is slidably connected to the first L-shaped plate, and the top surface of the first L-shaped plate is in sliding contact with the inner top surface of the protective shell.

[0014] As a preferred technical solution of the present invention, a straight slot opening is provided on a side of the protective shell close to the monitoring flow meter, and the rotating rod passes through the straight slot opening and is slidably connected to the straight slot opening.

[0015] As a preferred technical solution of the present invention, the inner wall of the vertical slot is fixedly connected with a second guide rail, and the second guide rail is slidably connected with the vertical plate;

[0016] The top end of the vertical plate is fixedly connected to a limiting circular plate, and a return spring is sleeved on the outer wall of the vertical plate located between the limiting circular plate and the mounting plate.

[0017] As a preferred technical solution of the present invention, a pressure water level gauge, a radar water level gauge, an electromagnetic flowmeter and a radar flowmeter are installed in sequence from left to right inside the monitoring flowmeter, the side of the monitoring flowmeter is set as a quarter arc surface, and the radar flowmeter is installed at the quarter arc surface of the monitoring flowmeter.

[0018] As a preferred technical solution of the present invention, four bolt holes are symmetrically opened on the mounting plate, and the mounting plate is mounted on the top of the confluence node of the drainage network by bolts.

[0019] The beneficial effects of the present invention are:

[0020] 1. This type of radar electromagnetic-based drainage pipe network monitoring flow meter can be installed by pressing the monitoring flow meter into the installation slot of the mounting plate. During the pressing process of the monitoring flow meter, the outer wall of the top of the monitoring flow meter contacts the chamfer of the card block, so that the card block is received in the groove. When the card block moves to the card slot, under the action of the reset spring, it will break away from the contact of the outer wall of the monitoring flow meter and extend into the card slot to complete the card installation of the monitoring flow meter. When it is necessary to release the installation of the monitoring flow meter, the pull plate can be pulled outward, and the movable rod can be further pulled outward through the pull plate to disengage the card block from the card slot. At this time, pull the monitoring flow meter downward to complete the disassembly of the monitoring flow meter.

[0021] 2. This type of radar electromagnetic-based drainage network monitoring flow meter will scrape off impurities on the surface of the monitoring flow meter through a scraper rod when the drainage network changes from a full pipe state to a non-full pipe state or from a non-full pipe state to a full pipe state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a three-dimensional schematic diagram of a drainage pipe network monitoring flowmeter based on radar electromagnetics of the present invention;

[0024] Figure 2 It is a front view schematic diagram of a drainage pipe network monitoring flow meter based on radar electromagnetics of the present invention;

[0025] Figure 3 It is a top view schematic diagram of a drainage pipe network monitoring flow meter based on radar electromagnetics of the present invention;

[0026] Figure 4 The invention is a drainage pipe network monitoring flow meter based on radar electromagnetic Figure 3 Schematic diagram of the cross-section at AA in the middle;

[0027] Figure 5 The invention is a drainage pipe network monitoring flow meter based on radar electromagnetic Figure 3 Schematic diagram of the cross section at the middle BB;

[0028] Figure 6 It is a three-dimensional schematic diagram of a cleaning component of a drainage pipe network monitoring flow meter based on radar electromagnetics according to the present invention;

[0029] Figure 7 The invention is a drainage pipe network monitoring flow meter based on radar electromagnetic Figure 6 The enlarged schematic diagram at A in the middle;

[0030] Figure 8 The invention is a drainage pipe network monitoring flow meter based on radar electromagnetic Figure 5 The enlarged schematic diagram of point B in the middle;

[0031] Fig. 9 It is a schematic diagram of the connection between the first L-shaped plate and the second L-shaped plate of a drainage pipe network monitoring flow meter based on radar electromagnetics of the present invention;

[0032] Fig.10 It is a schematic diagram of an installation scenario of a drainage pipe network monitoring flowmeter based on radar electromagnetics of the present invention;

[0033] In the figure: 1. mounting plate; 2. monitoring flow meter; 3. groove; 4. block; 5. movable rod; 6. pull plate; 7. protective shell; 8. first L-shaped plate; 9. second L-shaped plate; 10. rotating rod; 11. rotating plate; 12. scraper rod; 13. spur gear; 14. first rack; 15. first guide rail; 16. slide bar; 17. driving pulley; 18. driven pulley; 19. transmission belt; 20. support plate; 21. rotating shaft; 22. driven gear; 23. vertical notch; 24. vertical plate; 25. second rack; 26. floating plate; 27. slot; 28. second guide rail; 29. ​​limiting circular plate. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0035] Embodiment: A drainage pipe network monitoring flowmeter based on radar electromagnetic comprises a mounting plate 1, a mounting groove is provided on the bottom surface of the mounting plate 1, a mounting structure is provided inside the mounting groove of the mounting plate 1, a monitoring flowmeter 2 is installed inside the mounting groove of the mounting plate 1 through the mounting structure, the mounting structure comprises two grooves 3 provided on opposite sides of the mounting groove of the mounting plate 1, a card block 4 is slidably connected inside the groove 3, a forty-five degree chamfer is provided at the bottom of the side of the card block 4, a movable rod 5 is fixedly connected to the other side of the card block 4, and a pull plate 6 is fixedly connected to one end of the movable rod 5 extending through the outside of the mounting plate 1;

[0036] A reset spring is fixedly connected between the clamping block 4 and the inner wall of the mounting groove of the mounting plate 1, and the reset spring is sleeved on the outside of the movable rod 5. A chamfer is provided on the side of the pull plate 6 away from the mounting plate 1, and clamping grooves 27 are symmetrically provided on the upper part of both sides of the monitoring flow meter 2, and the clamping grooves 27 can be clamped with the clamping block 4.

[0037] Four bolt holes are symmetrically provided on the mounting plate 1, and the mounting plate 1 is mounted on the top of the confluence node of the drainage network by means of bolts.

[0038] like Figure 1-Figure 4 As shown, during the installation phase of the monitoring flow meter 2: the mounting plate 1 is pre-installed at the confluence node of the drainage network by bolts, and the monitoring flow meter 2 is installed facing the water. The specific situation is as follows Fig.10 As shown, the monitoring flow meter 2 can be installed by pressing it into the installation groove of the installation plate 1. During the pressing process of the monitoring flow meter 2, the top outer wall of the monitoring flow meter 2 contacts the chamfer of the card block 4, so that the card block 4 is received in the groove 3. When the card block 4 moves to the card groove 27, it will break away from the contact of the outer wall of the monitoring flow meter 2 and extend into the card groove 27 under the action of the reset spring, thus completing the card connection installation of the monitoring flow meter.

[0039] When it is necessary to release the installation of the monitoring flow meter 2, the pull plate 6 can be pulled outward, and the movable rod 5 can be further pulled outward through the pull plate 6 to disengage the block 4 from the slot 27. At this time, the monitoring flow meter 2 can be pulled downward to complete the disassembly of the monitoring flow meter 2.

[0040] A cleaning assembly is installed on the bottom surface of the mounting plate 1, and the cleaning assembly includes two protective shells 7 symmetrically fixedly installed on the bottom surface of the mounting plate 1, a first L-shaped plate 8 is slidably installed inside each protective shell 7, a second L-shaped plate 9 is slidably installed on the bottom surface of the first L-shaped plate 8, a rotating rod 10 is rotatably connected to the side of the second L-shaped plate 9, a rotating plate 11 is fixedly connected to one end of the rotating rod 10 close to the monitoring flow meter 2, a scraper rod 12 is fixedly connected between the two rotating plates 11, a spur gear 13 is coaxially fixedly connected to the other end of the rotating rod 10, a first rack 14 is fixedly connected to the top surface of the first L-shaped plate 8, and the first rack 14 is meshed with the spur gear 13;

[0041] The inner wall of the protective shell 7 is rotatably connected with a driving pulley 17 and a driven pulley 18, a transmission belt 19 is transmission-connected between the driving pulley 17 and the driven pulley 18, a support plate 20 is fixedly connected to the side of the first L-shaped plate 8, and the support plate 20 is fixedly connected to the transmission belt 19, a rotating shaft 21 rotatably connected to the protective shell 7 is coaxially fixedly connected between the two driving pulleys 17, and a driven gear 22 is coaxially fixedly connected to the outer wall of the rotating shaft 21;

[0042] A vertical slot 23 is formed on the top surface of the mounting plate 1 , a vertical plate 24 is slidably connected inside the vertical slot 23 , a second rack 25 meshing with the driven gear 22 is fixedly connected to the side of the vertical plate 24 , and a floating plate 26 is fixedly connected to the bottom end of the vertical plate 24 .

[0043] The top end of the vertical plate 24 is fixedly connected to a limiting circular plate 29 , and a return spring is sleeved on the outer wall of the vertical plate 24 between the limiting circular plate 29 and the mounting plate 1 .

[0044] A straight slot opening is provided on one side of the protective shell 7 close to the monitoring flow meter 2 , and the rotating rod 10 passes through the straight slot opening and is slidably connected with the straight slot opening.

[0045] Monitoring flow meter 2 surface cleaning: Figure 5-Figure 8 As shown, when the drainage network is in a full pipe state, water pushes the floating plate 26 to move upward, the return spring on the vertical plate 24 is stretched, and the floating plate 26 drives the vertical plate 24 to overcome the elastic force of the return spring and move upward, and further the second rack 25 on the vertical plate 24 drives the driven gear 22 to rotate counterclockwise, and the driven gear 22 drives the driving pulley 17 to rotate counterclockwise through the rotating shaft 21, and the driving pulley 17 drives the transmission belt 19 to move through the cooperation with the driven pulley 18, and the transmission belt 19 drives the support plate 20 to move, and further drives the first L-shaped plate 8 to move. Since the scraper rod 12 is resisted by the arc surface of the monitoring flow meter 2, it cannot move in the horizontal direction. At this time, the first L-shaped plate 8 and The second L-shaped plate 9 moves relatively, and under the action of the first rack 14, the spur gear 13 rotates clockwise, and the spur gear 13 drives the rotating rod 10 to rotate, and further drives the rotating plate 11 to rotate, and drives the scraper rod 12 to scrape the impurities on the arc surface of the monitoring flow meter 2. After the impurities on the arc surface of the monitoring flow meter 2 are scraped off, the scraper rod 12 moves to the straight edge of the outer shell of the monitoring flow meter 2, and the scraper rod 12 contacts the straight edge of the outer shell, and the rotating plate 11 cannot rotate. At this time, the first L-shaped plate 8 and the second L-shaped plate 9 do not move relatively, and the second L-shaped plate 9 will move synchronously with the first L-shaped plate 8, and the scraper rod 12 will further scrape the impurities on the straight edge of the outer shell of the monitoring flow meter 2.

[0046] When the drainage network changes from a full pipe state to a non-full pipe state, the reset spring causes the vertical plate 24 to return to its original position, and the second rack 25 on the vertical plate 24 drives the driven gear 22 to rotate clockwise. The scraper rod 12 contacts the straight edge of the shell, and the rotating plate 11 cannot rotate. At this time, the first L-shaped plate 8 and the second L-shaped plate 9 do not move relative to each other, and the second L-shaped plate 9 will move synchronously with the first L-shaped plate 8. The scraper rod 12 will scrape off the impurities on the straight edge of the shell of the monitoring flow meter 2. After the impurities on the straight edge of the shell of the monitoring flow meter 2 are scraped off, the rotating rod 10 moves to the end of the straight groove opening of the protective shell 7. At this time, the second L-shaped plate 9 cannot move, and the first L-shaped plate 8 will rotate relative to the second L-shaped plate 9, and the spur gear 13 will rotate counterclockwise. The rotating plate 11 is driven to rotate counterclockwise by the rotating rod 10, and the scraper rod 12 will scrape off the impurities on the arc surface of the monitoring flow meter 2 again.

[0047] like Fig. 9 As shown, the bottom surface of the first L-shaped plate 8 is fixedly connected with a first guide rail 15, the first guide rail 15 is slidably connected with the second L-shaped plate 9, and both ends of the first guide rail 15 are fixedly connected with limited stoppers, as shown in FIG. Fig. 9 As shown, the limit stopper can prevent the second L-shaped plate 9 from derailing.

[0048] A positioning slide bar 16 is fixedly connected between opposite sides of the protective shell 7. The slide bar 16 is slidably connected to the first L-shaped plate 8, and the top surface of the first L-shaped plate 8 is in sliding contact with the inner top surface of the protective shell 7. The first L-shaped plate 8 can move along the positioning slide bar 16. Since the top surface of the first L-shaped plate 8 is in sliding contact with the inner top surface of the protective shell 7, the relative rotation between the first L-shaped plate 8 and the positioning slide bar 16 is restricted.

[0049] The inner wall of the vertical slot 23 is fixedly connected with a second guide rail 28, and the second guide rail 28 is slidably connected with the vertical plate 24. The second guide rail 28 can limit the movement of the vertical plate 24;

[0050] A pressure water level gauge, a radar water level gauge, an electromagnetic flowmeter and a radar flowmeter are installed in the monitoring flowmeter 2 from left to right. The side of the monitoring flowmeter 2 is set as a quarter arc surface, and the radar flowmeter is installed at the quarter arc surface of the monitoring flowmeter 2. Because it is necessary to ensure that the angle between the radar wave emitted by the radar flowmeter and the water surface is between 50 and 60° during installation, the side of the monitoring flowmeter 2 is set as a quarter arc shape and the radar flowmeter is installed here.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A radar electromagnetic based drainage pipe network monitoring flow meter, comprising a mounting plate (1), characterized in that: The bottom surface of the mounting plate (1) is provided with a mounting groove, the mounting groove of the mounting plate (1) is provided with a mounting structure, a monitoring flow meter (2) is installed inside the mounting groove of the mounting plate (1) through the mounting structure, the mounting structure comprises two grooves (3) provided on opposite sides of the mounting groove of the mounting plate (1), a clamping block (4) is slidably connected inside the groove (3), a forty-five-degree chamfer is provided at the bottom of the side of the clamping block (4), a movable rod (5) is fixedly connected to the other side of the clamping block (4), and one end of the movable rod (5) extending through and outside the mounting plate (1) is fixedly connected to a pull plate (6); A cleaning assembly is installed on the bottom surface of the mounting plate (1), and the cleaning assembly includes two protective shells (7) symmetrically fixedly installed on the bottom surface of the mounting plate (1), a first L-shaped plate (8) is slidably installed inside each of the protective shells (7), a second L-shaped plate (9) is slidably installed on the bottom surface of the first L-shaped plate (8), a rotating rod (10) is rotatably connected to the side of the second L-shaped plate (9), one end of the rotating rod (10) close to the monitoring flow meter (2) is fixedly connected to a rotating plate (11), a scraper rod (12) is fixedly connected between the two rotating plates (11), the other end of the rotating rod (10) is coaxially fixedly connected to a spur gear (13), the top surface of the first L-shaped plate (8) is fixedly connected to a first rack (14), and the first rack (14) is meshed with the spur gear (13); The inner wall of the protective shell (7) is rotatably connected to a driving pulley (17) and a driven pulley (18); a transmission belt (19) is transmission-connected between the driving pulley (17) and the driven pulley (18); a support plate (20) is fixedly connected to the side of the first L-shaped plate (8); the support plate (20) is fixedly connected to the transmission belt (19); a rotating shaft (21) rotatably connected to the protective shell (7) is coaxially fixedly connected between the two driving pulleys (17); and a driven gear (22) is coaxially fixedly connected to the outer wall of the rotating shaft (21); The top surface of the mounting plate (1) is provided with a vertical slot (23), the interior of the vertical slot (23) is slidably connected to a vertical plate (24), the side of the vertical plate (24) is fixedly connected to a second rack (25) meshing with a driven gear (22), and the bottom end of the vertical plate (24) is fixedly connected to a floating plate (26).

2. The radar electromagnetic-based drainage pipe network monitoring flowmeter according to claim 1 is characterized in that: A return spring is fixedly connected between the clamping block (4) and the inner wall of the mounting groove of the mounting plate (1), and the return spring is sleeved on the outside of the movable rod (5); and a chamfer is provided on the side of the pull plate (6) away from the mounting plate (1); The upper parts of both sides of the monitoring flow meter (2) are symmetrically provided with card slots (27), and the card slots (27) can be card-connected with the card block (4).

3. The radar electromagnetic-based drainage pipe network monitoring flowmeter according to claim 1 is characterized in that: The bottom surface of the first L-shaped plate (8) is fixedly connected to a first guide rail (15), the first guide rail (15) is slidably connected to the second L-shaped plate (9), and both ends of the first guide rail (15) are fixedly connected to limit stoppers.

4. The radar electromagnetic based drainage pipe network monitoring flow meter according to claim 1 is characterized in that: A positioning slide bar (16) is fixedly connected between opposite sides of the protective shell (7), the slide bar (16) is slidably connected to the first L-shaped plate (8), and the top surface of the first L-shaped plate (8) is in sliding contact with the inner top surface of the protective shell (7).

5. The radar electromagnetic based drainage pipe network monitoring flow meter according to claim 1 is characterized in that: A straight slot opening is provided on one side of the protective shell (7) close to the monitoring flow meter (2), and the rotating rod (10) passes through the straight slot opening and is slidably connected to the straight slot opening.

6. The radar electromagnetic based drainage pipe network monitoring flow meter according to claim 1 is characterized in that: The inner wall of the vertical slot (23) is fixedly connected with a second guide rail (28), and the second guide rail (28) is slidably connected with the vertical plate (24); The top end of the vertical plate (24) is fixedly connected to a limiting circular plate (29), and a return spring is sleeved on the outer wall of the vertical plate (24) located between the limiting circular plate (29) and the mounting plate (1).

7. The radar electromagnetic based drainage pipe network monitoring flow meter according to claim 1 is characterized in that: The monitoring flow meter (2) is provided with a pressure water level meter, a radar water level meter, an electromagnetic flow meter and a radar flow meter in sequence from left to right. The side surface of the monitoring flow meter (2) is arranged as a quarter arc surface, and the radar flow meter is installed at the quarter arc surface of the monitoring flow meter (2).

8. The radar electromagnetic based drainage pipe network monitoring flow meter according to claim 1 is characterized in that: Four bolt holes are symmetrically provided on the mounting plate (1), and the mounting plate (1) is mounted on the top of the confluence node of the drainage network by means of bolts.

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