Low-energy-consumption ball valve for environmental protection engineering

Abstract

The invention discloses a low-energy-consumption ball valve for environmental protection engineering, and relates to the technical field of ball valves, the low-energy-consumption ball valve comprises a ball valve body, and the side wall of the ball valve body is fixedly connected with a water inlet pipeline and a water outlet pipeline; the filtering mechanism comprises a filter screen fixedly connected to the inner wall of the water outlet pipeline, a blow-off pipe is fixedly connected to the inner wall of the water outlet pipeline, a pressure sensing block is slidably connected to the side wall of the water inlet pipeline in a sealed mode and penetrates through the inner wall of the water inlet pipeline, and a vertical cylinder is fixedly connected to the upper end of the water inlet pipeline through a fixing shaft; a conductive sliding plug is slidably connected to the inner wall of the vertical cylinder, a vertical rod is fixedly connected to the lower end of the conductive sliding plug, the lower end of the vertical rod penetrates through the lower end of the vertical cylinder and is fixedly connected with the pressure sensing block, and a first spring is jointly and fixedly connected between the top in the vertical cylinder and the conductive sliding plug. When sewage flows through the filter screen, solid impurities in the sewage can be intercepted by the filter screen and attached to the surface of the filter screen, so that the solid impurities in the sewage can be removed.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valves, and in particular to a low-energy consumption ball valve for environmental protection projects. Background Art

[0002] Environmental protection projects refer to projects specifically designed for environmental protection. The contents of environmental protection projects mainly include air pollution prevention and control projects, water pollution prevention and control projects, solid waste treatment and utilization projects, and noise control projects. Sewage treatment is also an important part of environmental protection projects. Various valves are usually used in water treatment, and ball valves are important components.

[0003] The ball valves currently used in environmental protection projects usually have a filter installed inside to filter solid impurities in the sewage station. However, as the water treatment time increases, the surface of the filter will be covered with more and more solid impurities. The solid impurities will clog the filter mesh and cause blockage inside the ball valve. At this time, the staff will need to remove the filter for cleaning to ensure the normal use of the ball valve. This cleaning method is more troublesome and it is difficult to detect the blockage of the filter. It can only be cleaned regularly. In addition, each time the ball valve is stopped, some water will flow back. When the water pressure inside the ball valve is too high, failure to release the pressure in time may also cause damage to the ball valve.

[0004] Based on this, we propose a low-energy ball valve for environmental protection projects. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a low-energy consumption ball valve for environmental protection engineering.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A low-energy ball valve for environmental protection projects, comprising a ball valve body, wherein the side walls of the ball valve body are respectively fixedly connected to a water inlet pipe and a water outlet pipe; The filtering mechanism includes a filter screen fixedly connected to the inner wall of the outlet pipe, the inner wall of the outlet pipe is fixedly connected to a sewage pipe, the side wall of the water inlet pipe is sealed and slidably connected to a pressure-sensitive block, the pressure-sensitive block is arranged through the inner wall of the water inlet pipe, the upper end of the water inlet pipe is fixedly connected to a vertical cylinder through a fixed shaft, the inner wall of the vertical cylinder is slidably connected to a conductive sliding plug, the lower end of the conductive sliding plug is fixedly connected to a vertical rod, the lower end of the vertical rod passes through the lower end of the vertical cylinder and is fixedly connected to the pressure-sensitive block, a first spring is fixedly connected between the top of the vertical cylinder and the conductive sliding plug, a first solenoid valve is installed on the inner wall of the sewage pipe, a first conductive ring is embedded in the inner wall of the vertical cylinder, and the conductive sliding plug, the first solenoid valve, the first conductive ring and the external power supply are electrically connected through a wire.

[0007] Preferably, the filtering mechanism further comprises a vertical plate fixedly connected to the inner wall of the water outlet pipe, the side wall of the vertical plate is rotatably connected to a rotating shaft, one end of the rotating shaft passes through the filter screen and is fixedly connected to two scrapers.

[0008] Preferably, a driving mechanism is installed on the water outlet pipe, and the driving mechanism includes a water inlet cylinder fixedly connected to the upper end of the water outlet pipe, the inner wall of the water inlet cylinder is rotatably connected to a rotating rod, the side wall of the rotating rod is fixedly connected to a plurality of impellers, the lower end of the rotating rod passes through the inner wall of the water outlet pipe and is fixedly connected to a first bevel gear, the side wall of the rotating shaft is fixedly connected to a second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0009] Preferably, the driving mechanism also includes a connecting pipe fixedly connected to the inner wall of the water inlet pipe, the other end of the connecting pipe is connected to the water inlet cylinder, a drain pipe is fixedly connected to the inner wall of the water inlet cylinder, the other end of the drain pipe is connected to the water outlet pipe, a second solenoid valve is installed on the inner wall of the connecting pipe, and the conductive slide, the first conductive ring, the second solenoid valve and the external power supply are electrically connected through a wire.

[0010] Preferably, a knocking mechanism is installed in the water outlet pipe, and the knocking mechanism includes two slides symmetrically fixedly connected to the inner wall of the water outlet pipe, the inner walls of the two slides are slidably connected to a circular plate, the side walls of the circular plate are fixedly connected to a knocking rod, the other end of the knocking rod passes through the side wall of the slide, the side wall of the circular plate is fixedly connected to a cross bar, the other end of the cross bar passes through the side wall of the slide and is fixedly connected to a first semicircular head, the side wall of the cross bar is sleeved with a second spring, the two ends of the second spring are respectively fixedly connected to the side wall of the circular plate and the inner wall of the slide, the side wall of the rotating shaft is fixedly connected to multiple mounting plates, and the side walls of multiple mounting plates are fixedly connected to a second semicircular head that cooperates with the first semicircular head.

[0011] Preferably, an anti-backflow mechanism is installed in the water outlet pipe, and the anti-backflow mechanism includes a mounting ring fixedly connected to the inner wall of the water outlet pipe, and two cavities are symmetrically opened in the mounting ring. The inner walls of the two cavities are slidably connected with conductive slides, and the side walls of the conductive slides are fixedly connected with a connecting rod, one end of the connecting rod passes through the side wall of the mounting ring and is fixedly connected to the anti-backflow plate, and a third spring is fixedly connected between the inner wall of the cavity and the conductive slide.

[0012] Preferably, a pressure relief mechanism is installed in the anti-backflow plate, and the pressure relief mechanism includes an installation cavity opened in the anti-backflow plate, and a plurality of pressure relief holes are opened on the inner wall of the installation cavity. The inner wall of the installation cavity is rotatably connected to a connecting shaft, and the side wall of the connecting shaft is fixedly connected to a plurality of cover plates, and the side walls of the plurality of cover plates are all sealed and slidably connected to the inner wall of the installation cavity.

[0013] Preferably, the pressure relief mechanism also includes a spline sleeve fixedly connected to the side wall of the rotating shaft through multiple fixed shafts, one end of the connecting shaft passes through the side wall of the anti-backflow plate and is fixedly connected to the spline shaft, the spline shaft passes through the spline sleeve, the connecting shaft side wall fixing sleeve is provided with a torsion spring, one end of the torsion spring is fixedly connected to the side wall of the anti-backflow plate, and the inner wall of the mounting cavity is fixedly connected to multiple baffles that cooperate with the cover plate.

[0014] Preferably, a second conductive ring is embedded in the inner wall of one of the cavities, a warning light is fixedly connected to the upper end of the water outlet pipe, and the conductive slide, the second conductive ring, the warning light and the external power supply are electrically connected via wires.

[0015] Preferably, the inner wall of the ball valve body is sealingly and slidingly connected to a control ball, the upper end of the ball valve body is rotatably connected to a handle, and the lower end of the handle passes through the top of the ball valve body and is fixedly connected to the control ball.

[0016] The present invention has the following beneficial effects: 1. By setting up a filtering mechanism, when sewage flows through the filter, the solid impurities in it will be intercepted by the filter and attached to the surface of the filter, thereby removing the solid impurities in the sewage; 2. By setting up a driving mechanism, as the sewage is continuously filtered, more and more solid impurities will be attached to the surface of the filter, and the mesh of the filter will be blocked more and more seriously, which will reduce the speed of sewage circulation. Sewage will accumulate in the water inlet pipe and the ball valve body, causing the water pressure in the water inlet pipe to increase. The increased water pressure will push the pressure-sensitive block to move upward, and the pressure-sensitive block will drive the conductive sliding plug to move upward through the vertical rod until the conductive sliding plug moves to contact the first conductive ring. At this time, the circuit is connected, the first solenoid valve and the second solenoid valve will be energized to open, and part of the water in the water inlet pipe will pass through the connecting pipe When water enters the water inlet cylinder, it flows horizontally in the water inlet cylinder, which drives the impeller to rotate, and then drives the rotating rod to rotate, drives the first bevel gear to rotate, drives the second bevel gear to rotate, drives the rotating shaft to rotate, drives multiple scrapers to rotate, and scrapes off the solid impurities attached to the surface of the filter. Due to the existence of water pressure, solid impurities may be adsorbed on the surface of the filter. The scraping of the scraper will scrape them off the surface of the filter and then be discharged through the sewage pipe with the water flow. Therefore, the filter can be automatically cleaned to ensure the filtering effect and avoid clogging inside the ball valve body. There is no need for manual regular cleaning, which is more convenient to use. 3. By setting up a knocking mechanism, when the shaft rotates, it will synchronously drive multiple mounting plates to rotate, and then drive the second semicircular head to rotate. When the second semicircular head rotates to abut against the first semicircular head, it will push the first semicircular head to move, and then drive the crossbar to move, drive the circular plate to move, and then drive the knocking rod to move, hitting the filter, causing the filter to vibrate, making it easier to separate solid impurities attached to the filter surface, thereby improving the cleaning effect; 4. By setting up a backflow prevention mechanism, when water flows into the backflow prevention plate, it will push the backflow prevention plate to move, so that the backflow prevention plate is separated from the mounting ring, and the water can flow out through the gap between the mounting ring and the backflow prevention plate, and then be discharged. When the water inflow stops, the backflow prevention plate will reset under the action of the third spring and re-enter the interior of the mounting ring to form a seal, thereby preventing the water in the outlet pipe from flowing back again; 5. By setting a pressure relief mechanism, when the water pressure inside the ball valve body increases abnormally, the pressure sensing block will first sense the pressure and move, causing the first solenoid valve to be energized and open, and then part of the water will be discharged through the drain pipe for preliminary pressure relief. If the pressure continues to increase, the water pressure will push the backflow prevention plate to move, causing the distance between the backflow prevention plate and the mounting ring to increase, thereby increasing the drainage gap, increasing the drainage volume, and then pressure relief will be performed again. If the water pressure continues to increase, the backflow prevention plate will continue to move, and the backflow prevention plate will drive the connecting shaft and the conductive slide to move, and the connecting shaft will drive the spline shaft to move. When the conductive slide moves to contact the second conductive ring, the spline shaft will move into the spline sleeve, and the rotation of the rotating shaft will drive the spline sleeve to rotate. At this time, the spline shaft will rotate, driving the connecting shaft to rotate, driving the cover plate to rotate until the cover plate rotates to abut against the baffle. At this time, the cover plate will no longer block the pressure relief hole, the pressure relief hole will open, and water will be discharged through the pressure relief hole, thereby further increasing the drainage volume to achieve the purpose of pressure relief. 6. By setting the second conductive ring and the warning light, the warning light will also be powered on and light up when the pressure is released. If the pressure decreases, the conductive slide will reset under the action of the third spring, the circuit will be disconnected, and the warning light will go out. If the pressure still increases, the warning light will remain on. At this time, the staff needs to immediately close the ball valve body for inspection and troubleshooting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a low-energy ball valve for environmental protection projects proposed by the present invention; Figure 2 for Figure 1 Schematic cross-sectional view of the structure; Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of the middle backflow prevention plate; Figure 4 for Figure 2 A schematic diagram of the structure enlargement at point A; Figure 5 for Figure 2 A magnified schematic diagram of the structure at point B in FIG; Figure 6 for Figure 2 A magnified schematic diagram of the structure at position C in FIG; Figure 7 for Figure 2 Schematic diagram of the enlarged structure at D in the figure.

[0018] Figure: 1, ball valve body; 2, water inlet pipe; 3, water outlet pipe; 4, filter screen; 5, sewage pipe; 6, pressure-sensing block; 7, vertical cylinder; 8, conductive slide plug; 9, vertical rod; 10, first spring; 11, first solenoid valve; 12, first conductive ring; 13, vertical plate; 14, rotating shaft; 15, scraper; 16, water inlet cylinder; 17, rotating rod; 18, impeller; 19, first bevel gear; 20, second bevel gear; 21, connecting pipe; 22, drainage pipe; 23, second solenoid valve; 24, slide cylinder; 25, circular plate ; 26. Knocking rod; 27. Cross bar; 28. First semicircular head; 29. Second spring; 30. Mounting plate; 31. Second semicircular head; 32. Mounting ring; 33. Conductive slide plate; 34. Connecting rod; 35. Anti-backflow plate; 36. Third spring; 37. Mounting cavity; 38. Pressure relief hole; 39. Connecting shaft; 40. Cover plate; 41. Spline shaft; 42. Spline sleeve; 43. Torsion spring; 44. Baffle; 45. Second conductive ring; 46. Warning light; 47. Control ball; 48. Turning handle; 49. Cavity. DETAILED DESCRIPTION

[0019] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Reference Figure 1 - Figure 7 A low-energy ball valve for environmental protection projects includes a ball valve body 1, the side walls of which are fixedly connected to a water inlet pipe 2 and a water outlet pipe 3; The filtering mechanism includes a filter screen 4 fixedly connected to the inner wall of the outlet pipe 3, a sewage pipe 5 fixedly connected to the inner wall of the outlet pipe 3, a pressure-sensing block 6 sealingly and slidingly connected to the side wall of the water inlet pipe 2, and the pressure-sensing block 6 is arranged through the inner wall of the water inlet pipe 2. The upper end of the water inlet pipe 2 is fixedly connected to a vertical cylinder 7 through a fixed shaft, and a conductive sliding plug 8 is slidingly connected to the inner wall of the vertical cylinder 7. The lower end of the conductive sliding plug 8 is fixedly connected to a vertical rod 9, and the lower end of the vertical rod 9 passes through the lower end of the vertical cylinder 7 and is fixedly connected to the pressure-sensing block 6. A first spring 10 is fixedly connected between the top of the vertical cylinder 7 and the conductive sliding plug 8, and the side wall of the first spring 10 is provided with an insulating sleeve, which plays a good insulating role. A first solenoid valve 11 is installed on the inner wall of the sewage pipe 5, and a first conductive ring 12 is embedded in the inner wall of the vertical cylinder 7. The conductive sliding plug 8, the first solenoid valve 11, the first conductive ring 12 and the external power supply are electrically connected through wires.

[0021] Furthermore, sewage enters the ball valve body 1 through the water inlet pipe 2, then enters the water outlet pipe 3, and is finally discharged through the water outlet pipe 3. When the sewage flows through the filter 4, the solid impurities in it will be intercepted by the filter 4 and attached to the surface of the filter 4, thereby removing the solid impurities in the sewage.

[0022] The filtering mechanism further includes a vertical plate 13 fixedly connected to the inner wall of the water outlet pipe 3 , a side wall of the vertical plate 13 is rotatably connected to a rotating shaft 14 , one end of the rotating shaft 14 passes through the filter screen 4 and is fixedly connected to two scrapers 15 .

[0023] A driving mechanism is installed on the water outlet pipe 3, and the driving mechanism includes a water inlet cylinder 16 fixedly connected to the upper end of the water outlet pipe 3, the inner wall of the water inlet cylinder 16 is rotatably connected to a rotating rod 17, and a plurality of impellers 18 are fixedly connected to the side wall of the rotating rod 17. The lower end of the rotating rod 17 passes through the inner wall of the water outlet pipe 3 and is fixedly connected to a first bevel gear 19, and the side wall of the rotating shaft 14 is fixedly connected to a second bevel gear 20, and the first bevel gear 19 is meshed with the second bevel gear 20.

[0024] The driving mechanism also includes a connecting pipe 21 fixedly connected to the inner wall of the water inlet pipe 2, the other end of the connecting pipe 21 is connected to the water inlet cylinder 16, a drain pipe 22 is fixedly connected to the inner wall of the water inlet cylinder 16, the other end of the drain pipe 22 is connected to the water outlet pipe 3, and a second solenoid valve 23 is installed on the inner wall of the connecting pipe 21. The conductive slide 8, the first conductive ring 12, the second solenoid valve 23 and the external power supply are electrically connected through wires.

[0025] Furthermore, as the sewage is continuously filtered, more and more solid impurities adhere to the surface of the filter screen 4, and the mesh of the filter screen 4 will be blocked more and more seriously, which will reduce the speed of sewage circulation, and the sewage will accumulate in the water inlet pipe 2 and the ball valve body 1, causing the water pressure in the water inlet pipe 2 to increase. The increased water pressure will push the pressure-sensitive block 6 to move upward, and the pressure-sensitive block 6 will drive the conductive sliding plug 8 to move upward through the vertical rod 9 until the conductive sliding plug 8 moves to contact with the first conductive ring 12. At this time, the circuit is connected, the first solenoid valve 11 and the second solenoid valve 23 will be energized to open, and part of the water in the water inlet pipe 2 will enter the water inlet pipe through the connecting pipe 21. In the cylinder 16, water flows horizontally in the water inlet cylinder 16, which will drive the impeller 18 to rotate, and then drive the rotating rod 17 to rotate, drive the first bevel gear 19 to rotate, thereby driving the second bevel gear 20 to rotate, drive the rotating shaft 14 to rotate, and drive multiple scrapers 15 to rotate to scrape off the solid impurities attached to the surface of the filter screen 4. Due to the existence of water pressure, solid impurities may be adsorbed on the surface of the filter screen 4. Through the scraping of the scraper 15, it is scraped off the surface of the filter screen 4 and then discharged through the drain pipe 5 with the water flow. Therefore, the filter screen 4 can be automatically cleaned to ensure the filtering effect and avoid clogging inside the ball valve body 1. There is no need for manual cleaning on a regular basis, which is more convenient to use.

[0026] A knocking mechanism is installed in the water outlet pipe 3, which includes two slides 24 symmetrically fixedly connected to the inner wall of the water outlet pipe 3, the inner walls of the two slides 24 are both slidably connected with a circular plate 25, the side wall of the circular plate 25 is fixedly connected with a knocking rod 26, the other end of the knocking rod 26 passes through the side wall of the slide 24, the side wall of the circular plate 25 is fixedly connected with a cross bar 27, the other end of the cross bar 27 passes through the side wall of the slide 24 and is fixedly connected with a first semicircular head 28, the side wall of the cross bar 27 is sleeved with a second spring 29, the two ends of the second spring 29 are respectively fixedly connected to the side wall of the circular plate 25 and the inner wall of the slide 24, the side wall of the rotating shaft 14 is fixedly connected with multiple mounting plates 30, and the side walls of the multiple mounting plates 30 are fixedly connected with a second semicircular head 31 that cooperates with the first semicircular head 28.

[0027] Furthermore, when the rotating shaft 14 rotates, it will synchronously drive multiple mounting plates 30 to rotate, and then drive the second semicircular head 31 to rotate. When the second semicircular head 31 rotates to abut against the first semicircular head 28, it will push the first semicircular head 28 to move, and then drive the cross bar 27 to move, drive the circular plate 25 to move, and thus drive the knocking rod 26 to move, hitting the filter 4, causing the filter 4 to vibrate, and making it easier for solid impurities attached to the surface of the filter 4 to detach, thereby improving the cleaning effect.

[0028] An anti-backflow mechanism is installed in the water outlet pipe 3, and the anti-backflow mechanism includes a mounting ring 32 fixedly connected to the inner wall of the water outlet pipe 3. Two cavities 49 are symmetrically opened in the mounting ring 32. The inner walls of the two cavities 49 are slidably connected with a conductive slide 33. The side wall of the conductive slide 33 is fixedly connected with a connecting rod 34. One end of the connecting rod 34 passes through the side wall of the mounting ring 32 and is fixedly connected to the anti-backflow plate 35. A third spring 36 is fixedly connected between the inner wall of the cavity 49 and the conductive slide 33. The side wall of the third spring 36 is provided with an insulating sleeve, which plays a good insulating role.

[0029] Furthermore, when the water flow hits the anti-backflow plate 35, it will push the anti-backflow plate 35 to move, so that the anti-backflow plate 35 is separated from the mounting ring 32, and the water flow can flow out through the gap between the mounting ring 32 and the anti-backflow plate 35, and then be discharged. When the water inflow stops, the anti-backflow plate 35 will reset under the action of the third spring 36 and enter the interior of the mounting ring 32 again to form a seal, thereby preventing the water in the water outlet pipe 3 from flowing back again.

[0030] A pressure relief mechanism is installed in the anti-backflow plate 35, and the pressure relief mechanism includes an installation cavity 37 opened in the anti-backflow plate 35, and a plurality of pressure relief holes 38 are opened on the inner wall of the installation cavity 37. A connecting shaft 39 is rotatably connected to the inner wall of the installation cavity 37, and a plurality of cover plates 40 are fixedly connected to the side wall of the connecting shaft 39. The side walls of the plurality of cover plates 40 are all sealed and slidably connected to the inner wall of the installation cavity 37.

[0031] The pressure relief mechanism also includes a spline sleeve 42 fixedly connected to the side wall of the rotating shaft 14 through multiple fixed shafts. One end of the connecting shaft 39 passes through the side wall of the anti-backflow plate 35 and is fixedly connected to the spline shaft 41. The spline shaft 41 passes through the spline sleeve 42. The side wall fixing sleeve of the connecting shaft 39 is provided with a torsion spring 43. One end of the torsion spring 43 is fixedly connected to the side wall of the anti-backflow plate 35. The inner wall of the installation cavity 37 is fixedly connected to multiple baffles 44 that cooperate with the cover plate 40.

[0032] A second conductive ring 45 is embedded in the inner wall of one of the cavities 49 , a warning light 46 is fixedly connected to the upper end of the water outlet pipe 3 , and the conductive slide 33 , the second conductive ring 45 , the warning light 46 and the external power supply are electrically connected via wires.

[0033] Furthermore, when the water pressure inside the ball valve body 1 increases abnormally, it is not caused by the blockage of the filter screen 4, but by the excessive internal water flow. At this time, the pressure sensing block 6 will sense the pressure and move, so that the first solenoid valve 11 is energized and opened, and then part of the water flow will be discharged through the drain pipe 5 for preliminary pressure relief. If the pressure continues to increase, the water pressure will push the anti-backflow plate 35 to move (the movement of the anti-backflow plate 35 indicates that the filter screen 4 is not likely to be blocked, that is, the scraper 15 and the knocking mechanism do not need to work at this time), so that the distance between the anti-backflow plate 35 and the mounting ring 32 increases, and the drainage gap increases, increasing the drainage volume, and the pressure is relieved again. If the water pressure still continues to increase, the anti-backflow plate 35 will continue to move, and the anti-backflow plate 35 will drive the connecting shaft 39 and the conductive slide plate 33 to move, and the connecting shaft 39 will drive the spline shaft 41 to move. When the conductive slide plate 33 moves to contact the second conductive ring 45, the spline shaft 41 will move into the spline sleeve 42, and The rotation of the shaft 14 will drive the spline sleeve 42 to rotate. At this time, the spline shaft 41 will rotate, driving the connecting shaft 39 to rotate, and driving the cover plate 40 to rotate until the cover plate 40 rotates to abut against the baffle 44. At this time, the cover plate 40 will no longer block the pressure relief hole 38. The pressure relief hole 38 is open, and the water flow will be discharged through the pressure relief hole 38, thereby further increasing the drainage volume to achieve the purpose of pressure relief. Since the rotation of the shaft 14 is driven by the impact of the water flow on the impeller 18, when the cover plate 40 abuts against the baffle 44, the connecting shaft 39 cannot continue to rotate. At this time, no matter how great the impact force of the water flow is, it cannot drive the shaft 14 to continue rotating, and the warning light 46 will also be energized and light up. After the pressure is reduced, the conductive slide 33 will be reset under the action of the third spring 36, the circuit will be disconnected, and the warning light 46 will go out. If the pressure still increases, the warning light 46 will remain on. At this time, the staff needs to immediately close the ball valve body 1 for inspection and troubleshooting.

[0034] The inner wall of the ball valve body 1 is sealed and slidably connected to a control ball 47, and the upper end of the ball valve body 1 is rotatably connected to a handle 48. The lower end of the handle 48 passes through the top of the ball valve body 1 and is fixedly connected to the control ball 47. By rotating the handle 48, the control ball 47 is driven to rotate, thereby adjusting the water volume.

[0035] In the present invention, sewage enters the ball valve body 1 through the water inlet pipe 2, and then flows through the slot on the control ball 47 into the water outlet pipe 3, and is finally discharged through the water outlet pipe 3. When the sewage flows through the filter screen 4, the solid impurities in it will be intercepted by the filter screen 4 and attached to the surface of the filter screen 4, thereby removing the solid impurities in the sewage.

[0036] As the sewage is continuously filtered, more and more solid impurities adhere to the surface of the filter screen 4, and the mesh of the filter screen 4 will be blocked more and more seriously, which will reduce the speed of sewage circulation, and the sewage will accumulate in the water inlet pipe 2 and the ball valve body 1, causing the water pressure in the water inlet pipe 2 to increase. The increased water pressure will push the pressure-sensitive block 6 to move upward, and the pressure-sensitive block 6 will drive the conductive sliding plug 8 to move upward through the vertical rod 9 until the conductive sliding plug 8 moves to contact the first conductive ring 12. At this time, the circuit is connected, the first solenoid valve 11 and the second solenoid valve 23 will be energized to open, and part of the water in the water inlet pipe 2 will enter the water inlet cylinder 16 through the connecting pipe 21. In the filter screen 4, water flows horizontally in the water inlet cylinder 16, which will drive the impeller 18 to rotate, and then drive the rotating rod 17 to rotate, drive the first bevel gear 19 to rotate, and thus drive the second bevel gear 20 to rotate, drive the rotating shaft 14 to rotate, and drive multiple scrapers 15 to rotate to scrape off the solid impurities attached to the surface of the filter screen 4. Due to the existence of water pressure, solid impurities may be adsorbed on the surface of the filter screen 4. Through the scraping of the scraper 15, it is scraped off the surface of the filter screen 4 and then discharged through the sewage pipe 5 with the water flow. Therefore, the filter screen 4 can be automatically cleaned to ensure the filtering effect and avoid clogging inside the ball valve body 1. There is no need for manual cleaning on a regular basis, and it is more convenient to use.

[0037] When the rotating shaft 14 rotates, it will synchronously drive multiple mounting plates 30 to rotate, and then drive the second semicircular head 31 to rotate. When the second semicircular head 31 rotates to abut against the first semicircular head 28, it will push the first semicircular head 28 to move, and then drive the cross bar 27 to move, drive the circular plate 25 to move, and then drive the knocking rod 26 to move, hitting the filter 4, causing the filter 4 to vibrate, and making it easier for solid impurities attached to the surface of the filter 4 to detach, thereby improving the cleaning effect.

[0038] When the water flow hits the anti-backflow plate 35, it will push the anti-backflow plate 35 to move, so that the anti-backflow plate 35 is separated from the mounting ring 32, and the water flow can flow out through the gap between the mounting ring 32 and the anti-backflow plate 35, and then be discharged. When the water inflow stops, the anti-backflow plate 35 will reset under the action of the third spring 36 and enter the interior of the mounting ring 32 again to form a seal, thereby preventing the water in the water outlet pipe 3 from flowing back again.

[0039] When the water pressure inside the ball valve body 1 increases abnormally, it is not caused by the blockage of the filter 4, but by the excessive internal water flow. At this time, the pressure sensing block 6 will sense the pressure and move, causing the first solenoid valve 11 to be energized and opened, and then part of the water flow will be discharged through the sewage pipe 5 for preliminary pressure relief. If the pressure continues to increase, the water flow will impact the anti-backflow plate 35, pushing the anti-backflow plate 35 to move, so that the distance between the anti-backflow plate 35 and the mounting ring 32 increases, and the drainage gap increases, increasing the drainage volume, and the pressure is relieved again. If the water pressure continues to increase, the anti-backflow plate 35 will continue to move, and the anti-backflow plate 35 will drive the connecting shaft 39 and the conductive slide 33 to move, and the connecting shaft 39 will drive the spline shaft 41 to move. When the conductive slide 33 moves to contact the second conductive ring 45, the spline shaft 41 will move into the spline sleeve 42, and the rotation of the rotating shaft 14 will drive the spline sleeve 42 to rotate At this time, the spline shaft 41 will rotate, driving the connecting shaft 39 to rotate, driving the cover plate 40 to rotate, until the cover plate 40 rotates to abut against the baffle 44. At this time, the cover plate 40 will no longer block the pressure relief hole 38, the pressure relief hole 38 is open, and the water flow will be discharged through the pressure relief hole 38, thereby further increasing the drainage volume to achieve the purpose of pressure relief. Since the rotation of the rotating shaft 14 is driven by the impact of the water flow on the impeller 18, when the cover plate 40 abuts against the baffle 44, the connecting shaft 39 cannot continue to rotate. At this time, no matter how great the impact force of the water flow is, it cannot drive the rotating shaft 14 to continue rotating, and the warning light 46 will also be energized and light up. After the pressure is reduced, the conductive slide 33 will be reset under the action of the third spring 36, the circuit will be disconnected, and the warning light 46 will go out. If the pressure still increases, the warning light 46 will remain on. At this time, the staff needs to immediately close the ball valve body 1 for inspection and troubleshooting.

[0040] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A low energy consumption ball valve for environmental protection engineering, characterized in that: include: A ball valve body (1), wherein the side walls of the ball valve body (1) are respectively fixedly connected to a water inlet pipe (2) and a water outlet pipe (3); The filtering mechanism comprises a filter screen (4) fixedly connected to the inner wall of the water outlet pipe (3), a sewage pipe (5) fixedly connected to the inner wall of the water outlet pipe (3), a pressure sensing block (6) sealingly and slidingly connected to the side wall of the water inlet pipe (2), the pressure sensing block (6) penetrating the inner wall of the water inlet pipe (2), the upper end of the water inlet pipe (2) fixedly connected to a vertical cylinder (7) through a fixed shaft, the inner wall of the vertical cylinder (7) slidingly connected to a conductive sliding plug (8), the lower end of the conductive sliding plug (8) fixedly connected to the inner wall of the vertical cylinder (7), and the conductive sliding plug (8) fixedly connected to the inner wall of the vertical cylinder (7). A vertical rod (9) is connected, the lower end of the vertical rod (9) passes through the lower end of the vertical cylinder (7) and is fixedly connected to the pressure-sensing block (6), a first spring (10) is fixedly connected between the top of the vertical cylinder (7) and the conductive sliding plug (8), a first solenoid valve (11) is installed on the inner wall of the sewage pipe (5), a first conductive ring (12) is embedded in the inner wall of the vertical cylinder (7), and the conductive sliding plug (8), the first solenoid valve (11), the first conductive ring (12) and the external power supply are electrically connected through wires.

2. A low energy consumption ball valve for environmental protection engineering according to claim 1, characterized in that: in: The filtering mechanism further comprises a vertical plate (13) fixedly connected to the inner wall of the water outlet pipe (3); a side wall of the vertical plate (13) is rotatably connected to a rotating shaft (14); one end of the rotating shaft (14) passes through the filter screen (4) and is fixedly connected to two scrapers (15).

3. The low energy consumption ball valve for environmental protection engineering according to claim 2, characterized in that: in: A driving mechanism is installed on the water outlet pipe (3), and the driving mechanism includes a water inlet cylinder (16) fixedly connected to the upper end of the water outlet pipe (3); the inner wall of the water inlet cylinder (16) is rotatably connected to a rotating rod (17); the side wall of the rotating rod (17) is fixedly connected to a plurality of impellers (18); the lower end of the rotating rod (17) passes through the inner wall of the water outlet pipe (3) and is fixedly connected to a first bevel gear (19); the side wall of the rotating shaft (14) is fixedly connected to a second bevel gear (20); the first bevel gear (19) is meshed with the second bevel gear (20).

4. The low energy consumption ball valve for environmental protection engineering according to claim 3, characterized in that: in: The driving mechanism further comprises a connecting pipe (21) fixedly connected to the inner wall of the water inlet pipe (2), the other end of the connecting pipe (21) being connected to the water inlet cylinder (16), a drain pipe (22) being fixedly connected to the inner wall of the water inlet cylinder (16), the other end of the drain pipe (22) being connected to the water outlet pipe (3), a second solenoid valve (23) being installed on the inner wall of the connecting pipe (21), and the conductive sliding plug (8), the first conductive ring (12), the second solenoid valve (23) and the external power supply being electrically connected via a wire.

5. The low energy consumption ball valve for environmental protection engineering according to claim 4, characterized in that: in: A knocking mechanism is installed in the water outlet pipe (3), and the knocking mechanism includes two slide cylinders (24) symmetrically fixedly connected to the inner wall of the water outlet pipe (3), the inner walls of the two slide cylinders (24) are both slidably connected to a circular plate (25), the side wall of the circular plate (25) is fixedly connected to a knocking rod (26), the other end of the knocking rod (26) penetrates the side wall of the slide cylinder (24), the side wall of the circular plate (25) is fixedly connected to a cross bar (27), the other end of the cross bar (27) penetrates the side wall of the slide cylinder (24) and is fixedly connected to a first semicircular head (28), the side wall of the cross bar (27) is sleeved with a second spring (29), the two ends of the second spring (29) are respectively fixedly connected to the side wall of the circular plate (25) and the inner wall of the slide cylinder (24), the side wall of the rotating shaft (14) is fixedly connected to a plurality of mounting plates (30), and the side walls of the plurality of mounting plates (30) are all fixedly connected to a second semicircular head (31) that matches the first semicircular head (28).

6. The low energy consumption ball valve for environmental protection engineering according to claim 5, characterized in that: in: A backflow prevention mechanism is installed in the water outlet pipe (3), and the backflow prevention mechanism includes a mounting ring (32) fixedly connected to the inner wall of the water outlet pipe (3), two cavities (49) are symmetrically provided in the mounting ring (32), the inner walls of the two cavities (49) are both slidably connected to the conductive slides (33), the side walls of the conductive slides (33) are fixedly connected to the connecting rod (34), one end of the connecting rod (34) passes through the side wall of the mounting ring (32) and is fixedly connected to the backflow prevention plate (35), and a third spring (36) is fixedly connected between the inner wall of the cavity (49) and the conductive slide (33).

7. The low energy consumption ball valve for environmental protection engineering according to claim 6, characterized in that: in: A pressure relief mechanism is installed in the anti-backflow plate (35), and the pressure relief mechanism includes a mounting cavity (37) provided in the anti-backflow plate (35), a plurality of pressure relief holes (38) are provided on the inner wall of the mounting cavity (37), a connecting shaft (39) is rotatably connected to the inner wall of the mounting cavity (37), a plurality of cover plates (40) are fixedly connected to the side wall of the connecting shaft (39), and the side walls of the plurality of cover plates (40) are all sealed and slidably connected to the inner wall of the mounting cavity (37).

8. The low energy consumption ball valve for environmental protection engineering according to claim 7, characterized in that: in: The pressure relief mechanism further comprises a spline sleeve (42) fixedly connected to the side wall of the rotating shaft (14) via a plurality of fixed shafts, one end of the connecting shaft (39) passes through the side wall of the anti-backflow plate (35) and is fixedly connected to a spline shaft (41), the spline shaft (41) passes through the spline sleeve (42), a torsion spring (43) is provided on the side wall fixing sleeve of the connecting shaft (39), one end of the torsion spring (43) is fixedly connected to the side wall of the anti-backflow plate (35), and a plurality of baffles (44) cooperating with the cover plate (40) are fixedly connected to the inner wall of the mounting cavity (37).

9. The low energy consumption ball valve for environmental protection engineering according to claim 8, characterized in that: in: A second conductive ring (45) is embedded in the inner wall of one of the cavities (49), a warning light (46) is fixedly connected to the upper end of the water outlet pipe (3), and the conductive slide (33), the second conductive ring (45), the warning light (46) and the external power supply are electrically connected via wires.

10. The low energy consumption ball valve for environmental protection engineering according to claim 1, characterized in that: in: The inner wall of the ball valve body (1) is sealingly and slidingly connected to a control ball (47), the upper end of the ball valve body (1) is rotatably connected to a handle (48), and the lower end of the handle (48) passes through the top of the ball valve body (1) and is fixedly connected to the control ball (47).

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