A new self-cleaning ball valve

Abstract

The present invention relates to a novel self-cleaning ball valve, comprising a valve core, a valve body, a valve body base, a sealing packing, a valve stem, a valve cover and a hand wheel. The present invention cooperates with the valve core and the valve body base. When the ball valve is in a connected state, the flow of liquid is used to drive the inner wall of the valve core to rotate, thereby scraping off impurities attached to the inner wall of the valve core and causing them to be discharged along with the liquid. When the ball valve is closed, impurities in the static liquid are precipitated and gathered on the inner wall and surface of the valve core. When the ball valve needs to be connected, the hand wheel is rotated to drive the valve core to rotate. During the rotation process, the valve core is scraped by the valve body base, thereby cleaning impurities attached to the surface of the valve core and causing them to be discharged along with the liquid. Impurities on the inner wall of the valve core are discharged along with the power generated by the flow of liquid.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, in particular to a novel self-cleaning ball valve. Background Art

[0002] A ball valve is a valve with a spherical opening and closing part that is driven by a valve stem and rotates around its axis. It can be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between its V-type ball core and the metal valve seat welded with cemented carbide, which is particularly suitable for media containing fibers, tiny solid particles, etc. The multi-way ball valve can not only flexibly control the confluence, diversion, and flow direction switching of the medium in the pipeline, but also close any channel and connect the other two channels. This type of valve should generally be installed horizontally in the pipeline. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according to the drive mode.

[0003] During use, the ball valve needs to be opened and closed frequently. When the ball valve is closed, liquid accumulates in the ball valve. Impurities in the static liquid can easily adhere to the inner wall and surface of the opening and closing parts inside the ball valve, thereby affecting the smooth rotation of the opening and closing parts, and ultimately affecting the normal use of the valve body. Traditional cleaning methods generally involve disassembling the ball valve or directly replacing it with a new one, but both are difficult and time-consuming, affecting the normal flow control of the liquid in the pipeline, and are costly. The blockage in the ball valve needs to be cleaned with water, wasting water resources. If the ball valve is used for the flow of liquid with a certain degree of pollution, it is difficult to safely and environmentally friendly remove and clean the ball valve, which can easily cause pollution. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a novel self-cleaning ball valve.

[0005] A new self-cleaning ball valve comprises a valve core, a valve body, a valve body base, a sealing packing, a valve stem, a valve cover and a handwheel, wherein the valve core is rotatably connected in the valve body, valve body bases are fixedly installed inside the valve body and on the left and right sides of the valve core, the valve body base and the valve core are rotatably connected, a valve cover is fixedly installed on the upper end of the valve body, a sealing packing is fixedly installed inside the valve cover, a valve stem is inserted in the sealing packing, the valve stem and the valve core are fixedly connected, the valve stem and the valve cover are rotatably connected, and a handwheel is fixedly installed on the upper end of the valve stem.

[0006] The valve core includes a sphere, which is rotatably connected inside the valve body, a water hole is opened in the middle of the sphere, fixed round rods are symmetrically fixedly installed on the upper and lower sides of the middle of the inner ring surface of the water hole, a scraper rod is fixedly installed at the end of the fixed round rod, and a rotating cylinder is symmetrically connected to the inside of the water hole, and multiple fan blades are fixedly installed on the end of the rotating cylinder away from the fixed round rod.

[0007] The valve body base includes a circular ring plate, and circular ring plates are fixedly installed inside the valve body and on the left and right sides of the valve core. The opposite end faces of the circular ring plates are provided with arc grooves matching the sphere, and the inner ends of the arc grooves are evenly provided with scraping grooves. Discharge balls are evenly connected in a rolling manner in the scraping grooves. The rolling discharge balls are in contact with each other, and the outer end faces of the discharge balls are evenly provided with arc grooves. The discharge balls are tightly attached to the outer end faces of the spheres, and the opposite ends of the circular ring plates are rotatably connected with a plurality of arc scraper brushes.

[0008] Preferred technical solution 1: The valve body includes a spherical cavity, on which a connecting pipe is fixedly installed symmetrically on the left and right sides of the spherical cavity, flange connecting plates are fixedly installed at both ends of the connecting pipes, threaded holes are evenly arranged on the flange connecting plates, and an annular groove is arranged at one end of the flange connecting plates away from the connecting pipe, and a rubber sealing ring is fixedly installed in the annular groove.

[0009] Preferred technical solution two: a spline groove is provided at the upper end of the valve stem, a spline plate is inserted into the spline groove, an anti-drop spline ring is fixedly installed at the upper end of the spline groove, a threaded column is fixedly installed at the upper end of the spline plate, the threaded column is connected to the valve cover by a threaded connection, and a handwheel is fixedly installed at the upper end of the threaded column.

[0010] Preferred technical solution three: the inner wall of the water hole is symmetrically fixed with a stop ring, the cross section of the stop ring is crescent-shaped, and the stop ring is connected with a ceramic ball close to one end for uniform rolling.

[0011] Optimal technical solution four: The lower end of the scraper rod is symmetrically matched with the rotating cylinder, a scraper groove is opened at the lower end of the scraper rod, a spiral rod is rotatably connected in the scraper groove, and water inlet holes are evenly opened on the left side of the scraper rod.

[0012] Preferred technical solution five: a crescent-shaped groove is provided on the outer ring surface of the rotating cylinder, the crescent-shaped groove cooperates with the rotating cylinder, and a ceramic plate with a smooth surface is fixedly installed on the inner wall of the rotating cylinder.

[0013] Preferred technical solution six: expansion grooves are evenly arranged on one end of the fan blade close to the fixed round rod.

[0014] Preferred technical solution seven: the discharge ball is hollow, and liquid inlet holes are evenly opened on the discharge ball, and filter plates are fixedly installed at the openings of the liquid inlet holes.

[0015] The present invention has the following beneficial effects: 1. A new type of self-cleaning ball valve provided by the present invention cooperates with the valve core and the valve body base. When the ball valve is in a connected state, the flow of liquid is used to drive the inner wall of the valve core to rotate, thereby scraping off impurities attached to the inner wall of the valve core and causing them to be discharged along with the liquid. When the ball valve is closed, impurities in the static liquid precipitate and accumulate on the inner wall and surface of the valve core. When the ball valve needs to be connected, the hand wheel is turned to drive the valve core to rotate. During the rotation, the valve core is scraped by the valve body base, thereby cleaning impurities attached to the surface of the valve core and causing them to be discharged along with the liquid. Impurities on the inner wall of the valve core are discharged along with the power generated by the flow of liquid.

[0016] 2. The valve core provided in the present invention increases the contact area between the fan blades and the liquid through the expansion groove, thereby increasing the thrust exerted on the fan blades, and cooperates with the shift ring through the crescent-shaped groove to prevent the liquid from entering between the rotating cylinder and the sphere, thereby driving impurities to enter between the rotating cylinder and the sphere, causing the rotating cylinder to be unable to rotate smoothly, and preventing its surface from being damaged by the ceramic plate, and facilitating the smooth discharge of impurities.

[0017] 3. The valve core provided in the present invention scrapes off the impurities attached to the inner wall of the rotating cylinder through the scraper groove on the scraper rod, and the spiral rod is driven to rotate by the flowing liquid, thereby accelerating the separation of the impurities from the scraper groove, and water enters the scraper groove through the water inlet hole to bring the impurities out of the scraper groove.

[0018] 4. The valve body base provided in the present invention prevents impurities in the liquid from entering the liquid inlet through hole through the filter plate. After the liquid enters the liquid inlet through hole, the discharge ball rolls under the flow thrust of the liquid, tending to separate the impurities from the discharge ball. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0021] Figure 3 For the present invention Figure 1 A local enlarged view of location N.

[0022] Figure 4 For the present invention Figure 1 A local enlarged view of point M.

[0023] Figure 5 It is a schematic diagram of the main cross-sectional structure of the discharge ball of the present invention.

[0024] Figure 6 It is a schematic diagram of the left side cross-sectional structure of the sphere of the present invention.

[0025] Figure 7It is a schematic diagram of the main three-dimensional structure of the discharge ball and the arc-shaped scraper brush of the present invention.

[0026] In the figure: 1. valve core; 11. ball; 12. water hole; 121. shift ring; 122. ceramic ball; 13. fixed round rod; 14. scraper rod; 141. scraper groove; 142. spiral rod; 143. water inlet hole; 15. rotating cylinder; 151. crescent groove; 152. ceramic plate; 16. fan blade; 161. expansion groove; 2. valve body; 21. spherical cavity; 22. connecting pipe; 23. flange connection plate; 25. Threaded hole; 26. Annular groove; 27. Rubber sealing ring; 3. Valve body base; 31. Circular ring plate; 32. Arc groove; 33. Scraper groove; 34. Discharge ball; 341. Liquid inlet hole; 342. Filter plate; 35. Arc groove; 36. Arc scraper brush; 4. Sealing packing; 5. Valve stem; 51. Spline groove; 52. Spline plate; 53. Anti-drop spline ring; 54. Threaded column; 6. Valve cover; 7. Handwheel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1 and Figure 2 A new type of self-cleaning ball valve comprises a valve core 1, a valve body 2, a valve body base 3, a sealing packing 4, a valve stem 5, a valve cover 6 and a hand wheel 7. The valve core 1 is rotatably connected inside the valve body 2, and a valve body base 3 is fixedly installed inside the valve body 2 and on both sides of the valve core 1. The valve body base 3 is rotatably connected to the valve core 1. A valve cover 6 is fixedly installed on the upper end of the valve body 2, a sealing packing 4 is fixedly installed inside the valve cover 6, a valve stem 5 is inserted in the sealing packing 4, the valve stem 5 is fixedly connected to the valve core 1, the valve stem 5 is rotatably connected to the valve cover 6, and a hand wheel 7 is fixedly installed on the upper end of the valve stem 5.

[0029] See also Figure 1 , Figure 3 , Figure 4 and Figure 6 The valve core 1 includes a ball 11, the ball 11 is rotatably connected inside the valve body 2, a water hole 12 is opened in the middle of the ball 11, a fixed round rod 13 is symmetrically fixedly installed on the upper and lower sides of the middle of the inner ring surface of the water hole 12, a scraper rod 14 is fixedly installed at the end of the fixed round rod 13, a rotating cylinder 15 is symmetrically rotatably connected inside the water hole 12, and a plurality of fan blades 16 are fixedly installed on the end of the rotating cylinder 15 away from the fixed round rod 13;

[0030] When the ball valve is closed, a portion of liquid will accumulate in the water hole 12 on the ball valve, and impurities in the static liquid are very likely to accumulate on the inner wall of the rotating cylinder 15. If the ball valve is not used for a long time, the impurities will adhere to the inner wall of the rotating cylinder 15. At this time, the hand wheel 7 is turned to drive the valve core 1 to rotate, so that the ball 11 is in a connected state, and the liquid passes through the water hole 12. The flowing liquid impacts the fan blade 16, thereby driving the rotating cylinder 15 to rotate, and the scraper rod 14 on the fixed round rod 13 scrapes off the impurities attached to the inner wall of the rotating cylinder 15. The scraped impurities flow with the flowing liquid, thereby separating from the rotating cylinder 15, so as to achieve the purpose of cleaning the inner wall of the valve core 1.

[0031] See also Figure 1 and Figure 7 The valve body base 3 includes a circular plate 31. The circular plates 31 are fixedly installed inside the valve body 2 and on the left and right sides of the valve core 1. The opposite end faces of the circular plates 31 are provided with arc grooves 32 that match the ball 11. The inner ends of the arc grooves 32 are evenly provided with scraper grooves 33. Discharge balls 34 are evenly connected in a rolling manner in the scraper grooves 33. The rolling discharge balls 34 contact each other. The outer end faces of the discharge balls 34 are evenly provided with arc grooves 35. The discharge balls 34 are tightly attached to the outer end faces of the ball 11. The opposite ends of the circular plates 31 are rotatably connected with a plurality of arc scraper brushes 36. When the ball valve is closed, the valve core 11 is in a closed position. 1, and impurities in the liquid are easily attached to the left end surface of the valve core 1. When the valve core 1 rotates, the scraping groove 33 on the annular plate 31 scrapes off the impurities attached to the surface of the sphere 11, and the scraped impurities are attached to the arc groove 35 on the discharge ball 34. The discharge ball 34 contacts the sphere 11, thereby rolling in the scraping groove 33. The discharge balls 34 contacting each other scrape off the impurities on their surfaces, and finally the arc scraping brush 36 scrapes off and cleans the impurities attached to the surface of the discharge balls 34 contacting each other, and finally the discharge balls 34 are discharged with the flow of liquid.

[0032] See also Figure 1 The valve body 2 includes a spherical cavity 21, and a connecting pipe 22 is fixedly installed in the spherical cavity 21 symmetrically. A flange connecting plate 23 is fixedly installed at the end of the connecting pipe 22. Threaded holes 25 are evenly opened on the flange connecting plate 23. An annular groove 26 is opened at one end of the flange connecting plate 23 away from the connecting pipe 22. A rubber sealing ring 27 is fixedly installed in the annular groove 26; the rubber sealing ring 27 makes the flange connecting plate 23 and the pipeline to be connected tightly fit, thereby ensuring the sealing performance of the ball valve during use.

[0033] See also Figure 1The valve stem 5 is provided with a spline groove 51 at the upper end, a spline plate 52 is inserted into the spline groove 51, an anti-slip spline ring 53 is fixedly installed at the upper end of the spline groove 51, a threaded column 54 is fixedly installed at the upper end of the spline plate 52, the threaded column 54 is connected to the valve cover 6 in a threaded connection, and a hand wheel 7 is fixedly installed at the upper end of the threaded column 54; the spline groove 51 cooperates with the anti-slip spline ring 53 to prevent the threaded column 54 from being detached from the valve cover 6. When the hand wheel 7 is turned, the threaded column 54 rotates to drive the valve stem 5 to rotate. Since the spline plate 52 is inserted in the spline groove 51, the valve stem 5 rotates with the threaded rod, but the valve stem 5 can compensate for the displacement change in the vertical direction after the threaded rod rotates, thereby preventing the valve core 1 from being subjected to extrusion force and causing wear on its lower end surface.

[0034] See also Figure 4 A shift ring 121 is symmetrically fixedly installed on the inner wall of the water hole 12. The cross section of the shift ring 121 is crescent-shaped. The shift ring 121 is close to one end and is evenly connected with a ceramic ball 122 for rolling. The crescent-shaped shift ring 121 cooperates with the rotating cylinder 15 to position the rotating cylinder 15, and prevents liquid from entering between the rotating cylinder 15 and the sphere 11, thereby driving impurities into between the rotating cylinder 15 and the sphere 11, causing the rotating cylinder 15 to be unable to rotate smoothly.

[0035] See also Figure 3 and Figure 4 The lower end of the scraper rod 14 is symmetrically matched with the rotating cylinder 15, and a scraper groove 141 is opened at the lower end of the scraper rod 14. A spiral rod 142 is rotatably connected in the scraper groove 141, and water inlet holes 143 are evenly opened on the left side of the scraper rod 14; impurities attached to the inner wall of the rotating cylinder 15 are scraped off through the scraper groove 141 on the scraper rod 14, and the spiral rod 142 is driven to rotate by the flowing liquid, thereby accelerating the separation of impurities from the scraper groove 141, and water is convenient to enter the scraper groove 141 through the water inlet hole 143 to bring the impurities out of the scraper groove 141.

[0036] See also Figure 3 and Figure 4 The outer ring surface of the rotating cylinder 15 is provided with a crescent-shaped groove 151, and a ceramic plate 152 with a smooth surface is fixedly installed on the inner wall of the rotating cylinder 15; the crescent-shaped groove 151 cooperates with the shift ring 121 to prevent liquid from entering between the rotating cylinder 15 and the sphere 11, and the ceramic plate 152 prevents its surface from being damaged, and facilitates the smooth discharge of impurities.

[0037] See also Figure 4 The fan blade 16 is evenly provided with expansion grooves 161 at one end close to the fixed round rod 13; the contact area between the fan blade 16 and the liquid is increased by the expansion grooves 161, thereby increasing the thrust received by the fan blade 16.

[0038] See also Figure 5 The discharge ball 34 is hollow, and liquid inlet holes 341 are evenly opened on the discharge ball 34. The openings of the liquid inlet holes 341 are fixedly installed with filter plates 342. The filter plates 342 prevent impurities in the liquid from entering the liquid inlet holes 341. After the liquid enters the liquid inlet holes 341, the discharge ball 34 rolls under the flow thrust of the liquid, tending to separate the impurities from the discharge ball 34.

[0039] In specific operation, when the ball valve is closed, a portion of liquid will accumulate in the water hole 12 on the valve core 1, and impurities in the static liquid are very likely to accumulate on the inner wall of the rotating cylinder 15. If the ball valve is not used for a long time, the impurities will adhere to the inner wall of the rotating cylinder 15. At this time, the hand wheel 7 is turned to drive the valve core 1 to rotate, so that the ball 11 is in a connected state, and the liquid passes through the water hole 12. The flowing liquid impacts the fan blade 16, thereby driving the rotating cylinder 15 to rotate, and the scraper rod 14 on the fixed round rod 13 scrapes the impurities attached to the inner wall of the rotating cylinder 15. The scraped impurities As the flowing liquid flows, it is separated from the rotating cylinder 15 to achieve the purpose of cleaning the inner wall of the valve core 1. When the ball valve is closed, a large amount of liquid accumulates at the left end of the valve core 1, and impurities in the liquid are easily attached to the left end surface of the valve core 1. When the valve core 1 rotates, the scraper groove 33 on the annular plate 31 scrapes off the impurities attached to the surface of the sphere 11. The scraped impurities adhere to the arc groove 35 on the discharge ball 34. The discharge ball 34 contacts the sphere 11 and rolls in the scraper groove 33. The impurities attached to the surface of the discharge ball 34 are discharged through the arc scraper brush 36.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel self-cleaning ball valve, comprising a valve core (1), a valve body (2), a valve body base (3), a sealing packing (4), a valve stem (5), a valve cover (6) and a hand wheel (7), characterized in that: The valve body (2) is rotatably connected to a valve core (1), a valve body base (3) is fixedly installed inside the valve body (2) and on both the left and right sides of the valve core (1), the valve body base (3) and the valve core (1) are rotatably connected, a valve cover (6) is fixedly installed on the upper end of the valve body (2), a sealing packing (4) is fixedly installed inside the valve cover (6), a valve stem (5) is inserted into the sealing packing (4), the valve stem (5) and the valve core (1) are fixedly connected, the valve stem (5) and the valve cover (6) are rotatably connected, and a hand wheel (7) is fixedly installed on the upper end of the valve stem (5); wherein: The valve core (1) comprises a sphere (11), the sphere (11) is rotatably connected inside the valve body (2), a water through hole (12) is provided in the middle of the sphere (11), fixed round rods (13) are symmetrically fixedly installed on the upper and lower sides of the middle of the inner ring surface of the water through hole (12), a scraper rod (14) is fixedly installed at the end of the fixed round rod (13), a rotating cylinder (15) is symmetrically rotatably connected inside the water through hole (12), and a plurality of fan blades (16) are fixedly installed on the end of the rotating cylinder (15) away from the fixed round rod (13); The valve body base (3) comprises a circular ring plate (31), which is fixedly installed inside the valve body (2) and on both sides of the valve core (1). The opposite end faces of the circular ring plate (31) are provided with arc grooves (32) matching with the sphere (11), and the inner ends of the arc grooves (32) are evenly provided with scraper grooves (33). Discharge balls (34) are evenly connected in a rolling manner in the scraper grooves (33). The rolling discharge balls (34) are in contact with each other. The outer end faces of the discharge balls (34) are evenly provided with arc grooves (35). The discharge balls (34) are in close contact with the outer end faces of the sphere (11), and the opposite ends of the circular ring plate (31) are rotatably connected with a plurality of arc scraper brushes (36).

2. A novel self-cleaning ball valve according to claim 1, characterized in that: The valve body (2) comprises a spherical cavity (21), a connecting pipe (22) is fixedly mounted on the spherical cavity (21) in a symmetrical manner, a flange connecting plate (23) is fixedly mounted at each end of the connecting pipe (22), threaded holes (25) are evenly arranged on the flange connecting plate (23), an annular groove (26) is arranged at one end of the flange connecting plate (23) away from the connecting pipe (22), and a rubber sealing ring (27) is fixedly mounted in the annular groove (26).

3. A novel self-cleaning ball valve according to claim 1, characterized in that: The valve stem (5) has a spline groove (51) at the upper end, a spline plate (52) is inserted into the spline groove (51), an anti-drop spline ring (53) is fixedly mounted on the upper end of the spline groove (51), a threaded column (54) is fixedly mounted on the upper end of the spline plate (52), the threaded column (54) is connected to the valve cover (6) in a threaded connection, and a hand wheel (7) is fixedly mounted on the upper end of the threaded column (54).

4. A novel self-cleaning ball valve according to claim 1, characterized in that: The inner wall of the water-through hole (12) is fixedly and symmetrically mounted with a stop ring (121), the cross section of the stop ring (121) is crescent-shaped, and the stop ring (121) is evenly rolled and connected with a ceramic ball (122) close to one end.

5. A novel self-cleaning ball valve according to claim 1, characterized in that: The lower end of the scraper rod (14) is symmetrically matched with the rotating cylinder (15), and a scraper groove (141) is provided at the lower end of the scraper rod (14). A spiral rod (142) is rotatably connected in the scraper groove (141), and water inlet holes (143) are evenly provided on the left side of the scraper rod (14).

6. A novel self-cleaning ball valve according to claim 1, characterized in that: The outer ring surface of the rotating cylinder (15) is provided with a crescent-shaped groove (151), which cooperates with the shift ring (121), and the inner wall of the rotating cylinder (15) is fixedly mounted with a ceramic plate (152) with a smooth surface.

7. A novel self-cleaning ball valve according to claim 1, characterized in that: The discharge ball (34) is hollow, and liquid inlet holes (341) are evenly opened on the discharge ball (34), and filter plates (342) are fixedly installed at the openings of the liquid inlet holes (341).

8. A novel self-cleaning ball valve according to claim 1, characterized in that: The fan blades (16) are evenly provided with expansion grooves (161) at one end close to the fixed round rod (13).

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