Vertical helical vane water meter with flow channel stabilizing structure

Abstract

This invention belongs to the field of vertical spiral vane water meters, specifically relating to a vertical spiral vane water meter with a flow channel stabilization structure. It includes a meter body, an internally fixedly connected conical tube, an adjusting mechanism at the end of the conical tube, a filtering mechanism inside the conical tube, an impeller inside the meter body, and guide vanes inside the meter body. A flow-dividing ring is fixedly connected inside the guide vanes. This invention provides a vertical spiral vane water meter with a flow channel stabilization structure. By rotating the outer shell relative to the outer shell of the inner shell, the angle between the fixed tube and the conical tube changes. Furthermore, by rotating the spiral ring and the fixed tube to perform threaded movement, a sliding pin can drive a telescopic tube to extend and retract within the fixed tube. This makes the connection between the device and the external water pipe more convenient and reduces installation errors.

Description

Technical Field

[0001] This invention relates to the field of vertical rotor water meter technology, and more particularly to a vertical rotor water meter with a flow channel stabilization structure. Background Technology

[0002] The vertical rotor water meter is a type of rotor water meter, belonging to the velocity type. Its characteristic is that the rotor axis is perpendicular to the pipe axis. The metering is achieved by the vertically rotating rotor driven by the water flow. This type of water meter is suitable for use in large-diameter pipelines, with advantages such as large flow capacity and low pressure loss. The device stabilizes the flow by setting up structures such as buffer cones, flow dividers, and flow divider rings. The water flow gradually diffuses through the conical structure of the buffer cone, the flow dividers evenly divide the large water flow into multiple thin streams, and the flow divider rings further stabilize the water flow pattern, eliminating vortices and turbulence. The water flow, after being stabilized, smoothly impacts the vertical rotor impeller. This design effectively solves the problem of vortices and unstable patterns that easily occur when water flows in pipelines, especially when flowing through bends. International standards and industry specifications usually require a straight pipe section at least 10 times the pipe diameter to be installed upstream of the water meter, in order to make the water flow naturally stable through the damping effect of the pipe wall.

[0003] However, this device has certain shortcomings in use. There are errors in the installation of large-diameter pipelines, such as misalignment of flange holes and misalignment of pipelines. Traditional water meters use rigid connections, which require forced calibration during installation. This is not only time-consuming and labor-intensive, but may also cause installation stress on the water meter body and its internal precision measuring mechanism, leading to long-term drift of the water meter reading. At the same time, in order to protect the screw shaft system from the jamming and wear of impurities in the water, a filter screen is usually installed at the water meter inlet. However, while the filter screen intercepts impurities, it will gradually become clogged, resulting in a decrease in the water meter's flow capacity, a surge in pressure loss, and in severe cases, even complete blockage of water flow. Cleaning the filter screen requires stopping the water supply and disassembling the entire water meter, which is a cumbersome process that affects continuous water supply and generates high labor maintenance costs. Summary of the Invention

[0004] This invention provides a vertical rotor water meter with a flow channel stabilization structure, solving the problems of errors in the installation of large-diameter pipelines, such as misalignment of flange holes and pipe concentricity. Traditional water meters use rigid connections, requiring forced calibration during installation, which is not only time-consuming and labor-intensive but may also generate installation stress on the water meter body and its internal precision measuring mechanism, leading to long-term drift of the water meter reading. At the same time, to protect the rotor shaft system from the blockage and wear of impurities in the water, a filter screen is usually installed at the water meter inlet. However, while the filter screen intercepts impurities, it gradually becomes clogged, resulting in a decrease in the water meter's flow capacity, a surge in pressure loss, and in severe cases, even complete blockage of water flow. Cleaning the filter screen requires stopping the water supply and disassembling the entire water meter, a cumbersome process that affects continuous water supply and incurs high labor maintenance costs.

[0005] To solve the above-mentioned technical problems, the present invention provides a vertical rotor water meter with a flow channel stabilization structure, including a meter body, a conical tube fixedly connected inside the meter body, an adjustment mechanism at the end of the conical tube, a filter mechanism inside the conical tube, an impeller inside the meter body, a guide vane inside the meter body, and a flow divider ring fixedly connected inside the guide vane.

[0006] Preferably, the adjusting mechanism includes an inner shell, an outer shell fixedly connected to the outer side of the tapered tube, a fixed tube fixedly connected to the outer side of the inner shell, a telescopic tube slidably connected to the inner side of the outer shell, a sliding pin fixedly connected to the surface of the telescopic tube, the sliding pin and the fixed tube being slidably connected, a threaded ring threadedly connected to the outer side of the fixed tube, the threaded ring and the sliding pin being slidably connected, a guide rod fixedly connected to the surface of the sliding pin, a retaining ring slidably connected to the end of the guide rod and connected to the fixed tube, a pressure ring slidably connected to the outer side of the guide rod and connected to the fixed tube, and a spring provided on the outer side of the guide rod, with the pressure ring in contact with the threaded ring. By rotating the outer shell relative to the outer shell, the angle between the fixed tube and the tapered tube changes. Furthermore, by rotating the threaded ring and the fixed tube, the sliding pin can drive the telescopic tube to extend and retract within the fixed tube, making the connection between the device and the external water pipe more convenient and reducing installation errors.

[0007] Preferably, a sealing gasket is adhered to the inside of the outer shell, and the sealing gasket is slidably connected to the inner shell. By providing the sealing gasket, the sealing performance between the outer shell and the inner shell is increased.

[0008] Preferably, a connecting rod is fixedly connected inside the fixed tube, and a ball is fixedly connected to the end of the connecting rod. A spherical shell is rotatably connected to the outside of the ball, and the spherical shell and the inner shell are fixedly connected. By setting the above structure, the center positions of the balls in the outer shell and the inner shell are aligned, avoiding displacement during rotation.

[0009] Preferably, a sealing ring is embedded inside the telescopic tube, and the sealing ring is slidably connected to the fixed tube. By setting the sealing ring, leakage between the telescopic tube and the fixed tube is prevented.

[0010] Preferably, one end of the spring is fixedly connected to the retaining ring, and the other end of the spring is fixedly connected to the pressure ring. By providing the spring, the pressure ring can be easily reset.

[0011] Preferably, a plug is fixedly connected to the end of the pressure ring, and the plug and the screw ring are slidably connected. By providing the plug, the screw ring can be easily positioned.

[0012] Preferably, the filtration mechanism includes a filter screen, with the filter screen fixedly connected inside the tapered tube. A support shaft is mounted inside the filter screen via bearings. A fan blade is fixedly connected to the outer side of the support shaft. A square rod is fixedly connected to the end of the support shaft, and a stop block is fixedly connected to the end of the square rod. A slip ring is slidably connected to the outer side of the square rod, and a compression spring is provided on the outer side of the square rod. A scraper is fixedly connected to the surface of the slip ring, and the scraper is slidably connected to the filter screen. Water is filtered through the filter screen, and the water flow impacts the fan blades, causing the support shaft to rotate. This, in turn, causes the square rod to move the scraper via the slip ring, resulting in the scraper scraping against the filter screen. This prevents the filter screen from clogging and ensures efficient water flow through the filter screen.

[0013] Preferably, one end of the compression spring is fixedly connected to the slip ring, and the other end of the compression spring is fixedly connected to the stop block. By setting the compression spring, the slip ring is elastically compressed towards the filter screen.

[0014] Compared with related technologies, the vertical rotor water meter with a flow channel stabilization structure provided by the present invention has the following beneficial effects: This invention provides a vertical spiral vane water meter with a flow channel stabilization structure. By rotating the outer shell relative to the outer shell of the inner shell, the angle between the fixed tube and the tapered tube changes. Furthermore, by rotating the spiral ring and the fixed tube to make threaded movements, the sliding pin can drive the telescopic tube to extend and retract within the fixed tube. This makes the connection between the device and the external water pipe more convenient and reduces installation errors.

[0015] This invention provides a vertical spiral water meter with a flow channel stabilization structure. The water flow is filtered through a filter screen, and the water flow impacts the fan blades, which drive the support shaft to rotate. This causes the square rod to move the scraper through the slip ring, which in turn causes the scraper to scrape against the filter screen, making the filter screen less prone to clogging and ensuring the water flow efficiency of the filter screen. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A cross-sectional view of the table body; Figure 3 For the present invention Figure 1 A three-dimensional diagram of a conical tube; Figure 4 For the present invention Figure 3 Sectional view of the outer shell 1; Figure 5 For the present invention Figure 3 A sectional view of the fixed tube; Figure 6 For the present invention Figure 5 Enlarged view of point A; Figure 7 For the present invention Figure 3 A 3D view of the filter screen.

[0017] In the diagram: 1. Body; 2. Conical tube; 3. Adjustment mechanism; 4. Filtering mechanism; 5. Impeller; 6. Guide vane; 7. Diverter ring; 31. Inner shell; 32. Outer shell; 33. Sealing gasket; 34. Fixed tube; 35. Connecting rod; 36. Sphere; 37. Spherical shell; 38. Telescopic tube; 39. Sealing ring; 310. Sliding pin; 311. Threaded ring; 312. Guide rod; 313. Retaining ring; 314. Pressure ring; 315. Spring; 316. Insert block; 41. Filter screen; 42. Support shaft; 43. Fan blade; 44. Square rod; 45. Retaining block; 46. Slip ring; 47. Compression spring; 48. Scraper. Detailed Implementation

[0018] Please see Figures 1-3 A vertical spiral water meter with a flow channel stabilization structure includes a meter body 1, a conical tube 2 fixedly connected inside the meter body 1, an adjustment mechanism 3 provided at the end of the conical tube 2, a filter mechanism 4 provided inside the conical tube 2, an impeller 5 provided inside the meter body 1, a guide vane 6 provided inside the meter body 1, and a flow divider ring 7 fixedly connected inside the guide vane 6.

[0019] Please see Figure 1 , Figure 3 , Figure 4 The adjusting mechanism 3 includes an inner shell 31. The outer side of the tapered tube 2 is fixedly connected to the inner shell 31. The outer side of the inner shell 31 is movably connected to the outer side of the outer shell 32. A sealing gasket 33 is bonded to the inside of the outer shell 32. The sealing gasket 33 and the inner shell 31 are slidably connected. By setting the sealing gasket 33, the sealing between the outer shell 32 and the inner shell 31 is increased. A fixing tube 34 is fixedly connected to the outside of the outer shell 32. A connecting rod 35 is fixedly connected to the inside of the fixing tube 34. A ball 36 is fixedly connected to the end of the connecting rod 35. A spherical shell 37 is rotatably connected to the outside of the ball 36. The spherical shell 37 and the inner shell 31 are fixedly connected. By setting the above structure, the center positions of the balls between the outer shell 32 and the inner shell 31 are consistent, avoiding deviation during rotation.

[0020] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6The fixed tube 34 is internally slidably connected to a telescopic tube 38. A sealing ring 39 is embedded inside the telescopic tube 38, and the sealing ring 39 is slidably connected to the fixed tube 34. The sealing ring 39 prevents leakage between the telescopic tube 38 and the fixed tube 34. A sliding pin 310 is fixedly connected to the surface of the telescopic tube 38, and the sliding pin 310 is slidably connected to the fixed tube 34. A threaded ring 311 is threadedly connected to the outside of the fixed tube 34, and the threaded ring 311 is slidably connected to the sliding pin 310. A guide rod 312 is fixedly connected to the surface of the sliding pin 310. A retaining ring 313, which is slidably connected to the fixed tube 34, is fixedly connected to the end of the guide rod 312. A pressure ring 314, which is slidably connected to the fixed tube 34, is slidably connected to the outside of the guide rod 312. A spring 315 is provided on the outside of the guide rod 312. One end of the spring 315 is fixedly connected to the retaining ring 313, and the other end of the spring 315 is fixedly connected to the pressure ring 314. By setting the spring 315, the pressure ring 314 can be easily reset. The pressure ring 314 is in contact with the screw ring 311. The end of the pressure ring 314 is fixedly connected to the insert block 316. The insert block 316 and the screw ring 311 are slidably connected. By setting the insert block 316, the screw ring 311 can be easily limited. The outer shell 32 rotates relative to the outer shell 31, thereby changing the angle of the fixed tube 34 relative to the tapered tube 2. By rotating the screw ring 311 and the fixed tube 34 to make threaded movement, the sliding pin 310 can drive the telescopic tube 38 to extend and retract within the fixed tube 34, thereby making the connection between the whole device and the external water pipe more convenient and reducing installation errors.

[0021] Please see Figure 3 , Figure 7 The filter mechanism 4 includes a filter screen 41. The filter screen 41 is fixedly connected inside the tapered tube 2. A support shaft 42 is mounted inside the filter screen 41 via a bearing. A fan blade 43 is fixedly connected to the outside of the support shaft 42. A square rod 44 is fixedly connected to the end of the support shaft 42. A stop block 45 is fixedly connected to the end of the square rod 44. A slip ring 46 is slidably connected to the outside of the square rod 44. A compression spring 47 is provided on the outside of the square rod 44. One end of the compression spring 47 is fixedly connected to the slip ring 46, and the other end of the compression spring 47 is fixedly connected to the stop block 45. 5. Fixed connection: By setting a compression spring 47, the slip ring 46 is elastically squeezed towards the filter screen 41. A scraper 48 is fixedly connected to the surface of the slip ring 46. The scraper 48 and the filter screen 41 are slidably connected. The filter screen 41 filters the water flow, and the water flow impacts the fan blade 43 to drive the support shaft 42 to rotate. This causes the square rod 44 to drive the scraper 48 to move through the slip ring 46, which in turn causes the scraper 48 to scrape against the filter screen 41, making the filter screen 41 less prone to clogging and ensuring the water flow efficiency of the filter screen 41.

[0022] Working principle: When connecting the device and the external water pipe, manually rotate the fixed pipe 34, causing the outer casing 32 to rotate. The rotation of the outer casing 32 and the inner casing 31 causes a change in the angle between the fixed pipe 34 and the tapered pipe 2, thus aligning the axes of the fixed pipe 34 and the external water pipe. Then, manually move the pressure ring 314 to move the insert block 316 and separate it from the screw ring 311. The pressure ring 314 compresses the spring 315. Manually rotate the screw ring 311, causing it to rotate and create a threaded motion with the fixed pipe 34. This causes the screw ring 311 to move the sliding pin 310, which in turn moves the telescopic pipe 38, bringing it into contact with the end of the external water pipe and connecting it through the connecting pipe. Then, release the pressure ring 314. 14. The spring 315 resets, allowing the insert block 316 to be inserted into the socket of the screw ring 311. The outer shell 32 rotates relative to the outer shell 31, causing the fixed tube 34 to change its angle relative to the tapered tube 2. By rotating the screw ring 311 and the fixed tube 34, the threaded movement causes the sliding pin 310 to drive the telescopic tube 38 to extend and retract within the fixed tube 34. This makes the connection between the device and the external water pipe more convenient and reduces installation errors. When water flows through the device, it is filtered by the filter screen 41. The water flow impacts the fan blade 43, causing the support shaft 42 to rotate. This causes the square rod 44 to move the scraper 48 through the slip ring 46. The scraper 48 then scrapes against the filter screen 41, making the filter screen 41 less prone to clogging and ensuring the water flow efficiency of the filter screen 41.

Claims

1. A vertical spiral vane water meter with a flow channel stabilization structure, comprising a meter body (1), characterized in that: A tapered tube (2) is fixedly connected inside the meter body (1). An adjustment mechanism (3) is provided at the end of the tapered tube (2). A filter mechanism (4) is provided inside the tapered tube (2). An impeller (5) is provided inside the meter body (1). A guide vane (6) is provided inside the meter body (1). A flow divider ring (7) is fixedly connected inside the guide vane (6).

2. A vertical rotor water meter with a flow channel stabilization structure according to claim 1, characterized in that: The adjusting mechanism (3) includes an inner shell (31), which is fixedly connected to the outer side of the tapered tube (2). An outer shell (32) is movably connected to the outer side of the inner shell (31). A fixed tube (34) is fixedly connected to the outer side of the outer shell (32). A telescopic tube (38) is slidably connected inside the fixed tube (34). A sliding pin (310) is fixedly connected to the surface of the telescopic tube (38). The sliding pin (310) and the fixed tube (34) are slidably connected. The outer side of the fixed tube (34) is connected by a thread. A screw ring (311) is connected to the guide rod (312), which is slidably connected to a sliding pin (310). A guide rod (312) is fixedly connected to the surface of the sliding pin (310). A retaining ring (313) that is slidably connected to a fixed tube (34) is fixedly connected to the end of the guide rod (312). A pressure ring (314) that is slidably connected to the outside of the guide rod (312) is slidably connected to the fixed tube (34). A spring (315) is provided on the outside of the guide rod (312). The pressure ring (314) is in contact with the screw ring (311).

3. A vertical rotor water meter with a flow channel stabilization structure according to claim 2, characterized in that: A sealing gasket (33) is bonded to the inside of the outer shell (32), and the sealing gasket (33) and the inner shell (31) are slidably connected.

4. A vertical rotor water meter with a flow channel stabilization structure according to claim 2, characterized in that: The fixed tube (34) is fixedly connected to a connecting rod (35), and a ball (36) is fixedly connected to the end of the connecting rod (35). A spherical shell (37) is rotatably connected to the outside of the ball (36), and the spherical shell (37) and the inner shell (31) are fixedly connected.

5. A vertical rotor water meter with a flow channel stabilizing structure according to claim 2, characterized in that: The telescopic tube (38) is inlaid with a sealing ring (39), and the sealing ring (39) and the fixed tube (34) are slidably connected.

6. A vertical rotor water meter with a flow channel stabilization structure according to claim 2, characterized in that: One end of the spring (315) is fixedly connected to the retaining ring (313), and the other end of the spring (315) is fixedly connected to the pressure ring (314).

7. A vertical rotor water meter with a flow channel stabilization structure according to claim 2, characterized in that: The end of the pressure ring (314) is fixedly connected to the insert (316), and the insert (316) and the screw ring (311) are slidably connected.

8. A vertical rotor water meter with a flow channel stabilization structure according to claim 1, characterized in that: The filtration mechanism (4) includes a filter screen (41). The filter screen (41) is fixedly connected inside the tapered tube (2). A support shaft (42) is installed inside the filter screen (41) via a bearing. A fan blade (43) is fixedly connected to the outside of the support shaft (42). A square rod (44) is fixedly connected to the end of the support shaft (42). A stop block (45) is fixedly connected to the end of the square rod (44). A slip ring (46) is slidably connected to the outside of the square rod (44). A compression spring (47) is provided on the outside of the square rod (44). A scraper (48) is fixedly connected to the surface of the slip ring (46). The scraper (48) and the filter screen (41) are slidably connected.

9. A vertical rotor water meter with a flow channel stabilization structure according to claim 8, characterized in that: One end of the compression spring (47) is fixedly connected to the slip ring (46), and the other end of the compression spring (47) is fixedly connected to the stop block (45).

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