Water flow meter

Abstract

The utility model discloses a water body flow meter, relates to the technical field of water flow meters, and comprises a main pipeline, the left end of the main pipeline is fixedly provided with a filter assembly, the filter assembly is internally provided with a fixed pipe, one end of the fixed pipe far away from the main pipeline is fixedly provided with a connecting pipe, and the main pipeline is internally provided with a rotating shaft; a plurality of blades are fixedly mounted on the outer surface of the rotating shaft and are circumferentially distributed around the center line of the rotating shaft, a connector is fixedly mounted on the outer surface, corresponding to the blades, of the main pipeline, a converter is fixedly mounted at the end, away from the main pipeline, of the connector, and connecting rods are rotationally mounted at the two ends of the rotating shaft correspondingly; the filter assembly filters impurities in the fluid, so that no impurities exist in the fluid passing through the main pipeline, the filter plate in the filter assembly stores the impurities in the fluid in the filter plate, the impurities are prevented from being accumulated in the main pipeline, and then normal flowing of circulation is ensured.

Description

Technical Field

[0001] This utility model relates to the field of water flow meter technology, specifically to a water flow meter. Background Technology

[0002] A water flow meter consists of two parts: a sensor and a converter. It operates based on Faraday's law of electromagnetic induction and is used to measure the volumetric flow rate of conductive liquids with a conductivity greater than 5 μS / cm. It is an inductive instrument for measuring the volumetric flow rate of conductive media. Besides measuring the volumetric flow rate of general conductive liquids, it can also be used to measure the volumetric flow rate of highly corrosive liquids such as strong acids and alkalis, as well as homogeneous liquid-solid two-phase suspensions such as mud, slurry, and pulp. It is widely used in flow measurement in industries such as petroleum, chemical, metallurgy, textiles, papermaking, environmental protection, and food, as well as in municipal management, water conservancy construction, and river dredging.

[0003] In the operation of water flow meters, fluids often contain various impurities and particulate matter. These impurities directly enter the flow meter and may accumulate inside the measuring components, causing blockage or deformation of the flow channels, thus affecting the normal flow of the fluid. Simultaneously, hard particles in the impurities may scratch or wear down the precision components of the measuring elements, leading to performance degradation or failure, thereby affecting the overall accuracy and stability of the flow meter. Therefore, this invention proposes a water flow meter. Utility Model Content

[0004] To solve the above-mentioned technical problems, a water flow meter is provided, which solves the problems of impurities accumulating inside the measuring components and precision parts being scratched or worn.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A water flow meter includes a main pipe, a filter assembly fixedly installed at the left end of the main pipe, a fixed pipe inside the filter assembly, a connecting pipe fixedly installed at the end of the fixed pipe away from the main pipe, a rotating shaft inside the main pipe, a plurality of blades fixedly installed on the outer surface of the rotating shaft, the plurality of blades being circumferentially distributed around the center line of the rotating shaft, a connector fixedly installed on the outer surface of the main pipe corresponding to the blades, a converter fixedly installed at the end of the connector away from the main pipe, connecting rods rotatably installed at both ends of the rotating shaft, a fixed rod fixedly installed at the center of the connecting rod away from the rotating shaft, a plurality of diverting plates fixedly installed on the outer surface of the fixed rod, the plurality of diverting plates being circumferentially distributed around the center line of the fixed rod, and all the plurality of diverting plates being fixedly connected to the inner wall of the main pipe.

[0007] Preferably, the filter assembly includes a fixed tube, the interior of which is provided with a plurality of grooves, the plurality of grooves being linearly distributed along the axis of the fixed tube, and each of the plurality of grooves being provided with a filter plate, the side of the filter plate away from the fixed tube being fixedly installed with a handle.

[0008] Preferably, the inner walls of the slide groove corresponding to the filter plate are provided with movable grooves on both sides. Several guide rods are fixedly installed on the inner wall of the movable groove. The guide rods are distributed in a fan shape around the axial direction of the fixed tube. A movable plate is provided inside the movable groove. A connecting plate is fixedly installed on the side of the movable plate near the filter plate. A spring is sleeved on the outer surface of the guide rod. The two ends of the spring are fixedly connected to the surface of the movable plate and the inner wall of the movable groove, respectively.

[0009] Preferably, the main pipe has the same dimensions as the connecting pipe, and both are smaller than the fixed pipe.

[0010] Preferably, flanges are fixedly installed at the right end of the main pipe and the left end of the connecting pipe.

[0011] Preferably, a sealing ring is fixedly installed on the inner wall of the fixing tube corresponding to the filter plate.

[0012] Preferably, the filter plate is made of polypropylene.

[0013] Compared with the prior art, the advantages of this utility model are as follows: This utility model sets up a filter assembly, which filters impurities in the fluid, so that the fluid passing through the main pipe is free of impurities. The filter plate in the filter assembly stores the impurities in the fluid, preventing impurities from accumulating in the main pipe, thereby ensuring normal flow. Since the blades are separated from impurities, the blades can be used normally for a long time, and the blade surface is not scratched or worn by impurities, ensuring the normal performance of the components, thereby maintaining the measurement accuracy and stability of the flow meter. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 for Figure 2 A magnified view of part A in the image;

[0017] Figure 4 This is a schematic diagram of the internal structure of the filter assembly in this utility model;

[0018] Figure 5 for Figure 4 A magnified view of part B in the image.

[0019] The following are the labels in the diagram: 1. Main pipe; 2. Filter assembly; 3. Connecting pipe; 4. Rotating shaft; 5. Blade; 6. Connector; 7. Converter; 8. Connecting rod; 9. Fixing rod; 10. Drain plate; 11. Fixing pipe; 12. Slide groove; 13. Filter plate; 14. Handle; 15. Moving groove; 16. Guide rod; 17. Moving plate; 18. Connecting plate; 19. Spring; 20. Flange; 21. Sealing ring. Detailed Implementation

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0021] Reference Figure 1-5 As shown, a water flow meter includes a main pipe 1. A filter assembly 2 is fixedly installed at the left end of the main pipe 1. A fixed pipe 11 is provided inside the filter assembly 2. A connecting pipe 3 is fixedly installed at the end of the fixed pipe 11 away from the main pipe 1. Water flows sequentially through the connecting pipe 3, the fixed pipe 11, and the main pipe 1. The filter assembly 2 filters impurities in the water flow without affecting the measurement effect, reducing the probability of equipment damage. A rotating shaft 4 is provided inside the main pipe 1. Several blades 5 are fixedly installed on the outer surface of the rotating shaft 4. The blades 5 are circumferentially distributed around the center line of the rotating shaft 4. Connectors 6 are fixedly installed on the outer surface of the main pipe 1 corresponding to the blades 5. A converter 7 is fixedly installed at the end of connector 6 away from the main pipe 1. The water flow drives the blade 5 to rotate the rotating shaft 4 and the blade 5. During the rotation of the blade 5, the blade 5 passing through connector 6 will generate a pulse signal. Connector 6 transmits this signal to converter 7. Converter 7 converts the pulse signal into an electrical signal and processes it. Connecting rods 8 are rotatably installed at both ends of the rotating shaft 4. A fixing rod 9 is fixedly installed at the center of the connecting rod 8 away from the center of the rotating shaft 4. Several diversion plates 10 are fixedly installed on the outer surface of the fixing rod 9. The several diversion plates 10 are distributed circumferentially around the center line of the fixing rod 9, and the several diversion plates 10 are all fixedly connected to the inner wall of the main pipe 1.

[0022] As shown in Figure 4-5, the filter assembly 2 includes a fixed pipe 11. The fixed pipe 11 has several grooves 12 inside, which are linearly distributed along the axis of the fixed pipe 11. Each groove 12 has a filter plate 13 inside, which filters the water flowing through the fixed pipe 11. A handle 14 is fixedly installed on the side of the filter plate 13 away from the fixed pipe 11, allowing the operator to replace the filter plate 13.

[0023] like Figure 4-5As shown, movable grooves 15 are provided on both sides of the inner wall of the slide groove 12 corresponding to the filter plate 13. Several guide rods 16 are fixedly installed on the inner wall of the movable groove 15. The guide rods 16 are distributed in a fan shape around the axial direction of the fixed tube 11. A movable plate 17 is provided inside the movable groove 15. A connecting plate 18 is fixedly installed on the side of the movable plate 17 near the filter plate 13. A spring 19 is sleeved on the outer surface of the guide rod 16. The two ends of the spring 19 are fixedly connected to the surface of the movable plate 17 and the inner wall of the movable groove 15, respectively. The spring 19 pushes the movable plate 17 or the connecting plate 18 to abut against the filter plate 13 in real time, which can prevent water from seeping out between the slide groove 12 and the filter plate 13. At the same time, after the filter plate 13 leaves the slide groove 12, the spring 19 pushes the two connecting plates 18 to connect with each other, so as to realize the replacement of the filter plate 13 during operation.

[0024] like Figure 2 As shown, the main pipe 1 has the same size as the connecting pipe 3, and both are smaller than the fixed pipe 11. Since the main pipe 1 and the connecting pipe 3 have the same size, the fluid can maintain a stable flow state when entering the main pipe 1 from the connecting pipe 3, reducing fluid disturbance caused by changes in pipe size, thereby improving the accuracy of flow measurement. The large fixed pipe 11 allows the filter plate 13 to have a larger area to filter impurities in the fluid.

[0025] like Figure 1-2 As shown, flanges 20 are fixedly installed on the right end of the main pipe 1 and the left end of the connecting pipe 3, so that the main pipe 1 and the connecting pipe 3 can be easily connected and disassembled with other pipes or equipment.

[0026] like Figure 4-5 As shown, a sealing ring 21 is fixedly installed on the inner wall of the fixed pipe 11 corresponding to the filter plate 13. The main function of the sealing ring 21 is to provide a reliable sealing effect and further prevent fluid leakage when passing through the filter assembly 2. When the filter plate 13 is installed in the fixed pipe 11, the sealing ring 21 can tightly fit the gap between the filter plate 13 and the fixed pipe 11, effectively preventing fluid from seeping out from these gaps. This helps to maintain the cleanliness inside the filter assembly 2 and prevents unfiltered fluid from bypassing the filter plate 13 and directly entering the main pipe 1. The filter plate 13 can more fully exert its filtering function and improve the filtration efficiency of the entire flow meter.

[0027] like Figure 1-5As shown, the filter plate 13 is made of polypropylene. 1. Polypropylene is a material with excellent corrosion resistance, capable of resisting the erosion of various chemicals. In fluid flow meters, the filter plate 13 frequently comes into contact with various fluids, including fluids that may contain corrosive components. Using polypropylene as the material of the filter plate 13 ensures that it is not easily corroded during long-term use, thereby maintaining stable filtration performance and extending service life. 2. Polypropylene also has good wear resistance, capable of withstanding the scouring and wear of particulate matter or impurities in the fluid on the filter plate 13, helping to maintain the integrity and filtration efficiency of the filter plate 13, and reducing the possibility of decreased filtration performance or damage to the filter plate 13 due to wear. 3. Polypropylene is a lightweight and high-strength material with a high strength-to-weight ratio, which allows the polypropylene filter plate 13 to maintain a light weight while providing sufficient filtration area and filtration efficiency, facilitating installation, disassembly, and replacement.

[0028] Working principle: Water flows into the filter assembly 2 through the connecting pipe 3. Multiple filter plates 13 in the filter assembly 2 filter the water. The filtered water flows into the main pipe 1 and impacts the blades 5 on the rotating shaft 4, causing the blades 5 to drive the rotating shaft 4 to rotate. The connector 6 transmits the pulses generated by the rotation of the blades 5 to the converter 7. The converter 7 processes the pulse signals, allowing the operator to directly observe the water flow speed through the converter 7. During equipment maintenance, the operator replaces the filter plates 13 through the handle 14. After the filter plates 13 leave the slide 12, the spring 19 pushes the two connecting plates 18 to connect with each other, realizing the replacement of the filter plates 13 during operation.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water flow meter, comprising a main pipe (1), a filter assembly (2) fixedly installed at the left end of the main pipe (1), a fixed pipe (11) arranged in the filter assembly (2), a connecting pipe (3) fixedly installed at the end of the fixed pipe (11) away from the main pipe (1), a rotating shaft (4) arranged in the main pipe (1), a plurality of blades (5) fixedly installed on the outer surface of the rotating shaft (4), the plurality of blades (5) being circumferentially distributed around the center line of the rotating shaft (4), a connector (6) fixedly installed on the outer surface of the main pipe (1) corresponding to the blades (5), a transducer (7) fixedly installed at the end of the connector (6) away from the main pipe (1), a connecting rod (8) rotatably installed at both ends of the rotating shaft (4), a fixed rod (9) fixedly installed at the center of the connecting rod (8) away from the rotating shaft (4), a plurality of drainage plates (10) fixedly installed on the outer surface of the fixed rod (9), the plurality of drainage plates (10) being circumferentially distributed around the center line of the fixed rod (9), and the plurality of drainage plates (10) being fixedly connected with the inner wall of the main pipe (1).

2. A flow meter for a body of water as defined in claim 1, wherein: The filter assembly (2) comprises a fixed pipe (11), a plurality of sliding grooves (12) are formed in the inner portion of the fixed pipe (11), the plurality of sliding grooves (12) are linearly distributed along the axial direction of the fixed pipe (11), and a filter plate (13) is arranged in the inner portion of each of the plurality of sliding grooves (12).

3. A flow meter for a body of water as defined in claim 2, wherein: Corresponding to the filter plate (13), a moving groove (15) is formed in the inner wall of each of the sliding grooves (12), a plurality of guide rods (16) are fixedly installed on the inner wall of the moving groove (15), the plurality of guide rods (16) are fan-shapedly distributed around the axial direction of the fixed pipe (11), a moving plate (17) is arranged in the inner portion of the moving groove (15), a connecting plate (18) is fixedly installed on the side of the moving plate (17) close to the filter plate (13), a spring (19) is sleeved on the outer surface of the guide rod (16), and the both ends of the spring (19) are fixedly connected with the surface of the moving plate (17) and the inner wall of the moving groove (15), respectively.

4. A flow meter for a body of water as defined in claim 1, wherein: The size of the main pipe (1) is the same as that of the connecting pipe (3), and both are smaller than the size of the fixed pipe (11).

5. A flow meter for a body of water as defined in claim 1, wherein: The right end of the main pipe (1) and the left end of the connecting pipe (3) are fixedly installed with a flange plate (20).

6. A flow meter for a body of water as defined in claim 2, wherein: A sealing ring (21) is fixedly installed on the inner wall of the fixed pipe (11) corresponding to the filter plate (13).

7. A flow meter for a body of water as defined in claim 2, wherein: The material of the filter plate (13) is polypropylene.

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