Dustproof and anti-crystallization hard sealing ball valve

Abstract

The dustproof and anti-crystallization hard sealing ball valve comprises a lubricating assembly, the anti-crystallization assembly is composed of a shell, a first rotating fan, a third rotating fan, stirring blades, a ball body, a valve rod and rotating blades, the anti-crystallization assembly is used for preventing crystallization, the ball body is fixedly connected with the valve rod, and the rotating blades are fixedly connected with the shell. The first rotating fan and the third rotating fan are rotationally connected with the shell, the stirring blades are fixedly connected to the tail ends of the first rotating fan and the third rotating fan, the rotating blades are obliquely arranged in the first rotating fan and the third rotating fan, and the first rotating fan and the third rotating fan are both arranged in the shell and rotationally connected with the shell. By arranging the synchronous block, the scraping block and the stirring blades, the problems that pipeline crystals in the ball body are gradually accumulated, so that a ball valve channel is gradually blocked and cannot be used, and the service life of the ball valve is shortened are solved.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, and in particular to a dust-proof and crystallization-proof hard-sealed ball valve. Background Art

[0002] A ball valve is a valve that controls the flow of fluid by rotating the ball. Compared with other types of valve bodies, its sealing method can withstand harsh working environments, so it is widely used in industry.

[0003] The ball valve is mainly composed of a valve body, a ball, a valve seat, and a valve stem. In actual use, the ball valve will be used in certain chemical liquids. Since the ball is in contact with the chemical solution for a long time, crystallization will occur on the surface of the ball. The channel opened in the ball will also come into contact with the liquid when the ball valve is turned on. Crystallization will also occur in the ball channel after long-term use. In actual use, the crystals will be located between the surface of the ball and the valve seat and inside the ball channel. During the rotation of the ball, the crystals will cause wear on the surface of the ball and the valve seat, thereby reducing the service life of the ball valve. For the channel opened in the ball, crystals will gradually accumulate in the ball channel, causing the ball pipeline to gradually become blocked, thereby rendering the ball valve unusable. In response to the above phenomenon, the present application proposes a dustproof and crystallization-proof hard-sealed ball valve. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a dust-proof and crystallization-proof hard-sealed ball valve.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A dustproof and crystallization-proof hard-sealed ball valve, comprising an anti-crystallization component, a dustproof component, and a lubrication component. The anti-crystallization component is composed of a housing, a No. 1 rotating fan, a No. 3 rotating fan, a stirring blade, a ball, a valve stem, and a rotating blade. The anti-crystallization component is used to prevent crystallization. The ball is fixedly connected to the valve stem, and the No. 1 rotating fan and the No. 3 rotating fan are rotatably connected to the housing. The dustproof assembly consists of a No. 2 rotating fan, a scraper, an isolation ring, and a hemispherical filter. The dustproof assembly is used to prevent dust in the liquid from wearing the sphere. The hemispherical filter is rotatably connected to the No. 1 rotating fan, and the No. 2 rotating fan is rotatably connected to the inside of the No. 1 rotating fan.

[0006] Preferably, the lubrication assembly consists of an outer frame, a worm, a worm wheel, an oil box, a lifting block, a lifting rod, a No. 1 spring, a pressure plate, and a threaded plug. The lubrication assembly is used to provide lubrication for the valve stem. The worm wheel is fixedly connected to the valve stem, the lifting block is fixedly connected to the upper surface of the worm wheel, the No. 1 spring is slidably set on the lifting rod, and the pressure plate is fixedly connected to the bottom end of the lifting rod.

[0007] Preferably, the bottom of the oil box is rotatably connected to the top of the valve stem, the threaded plug is threadedly connected to the oil box, the worm gear and the worm are meshed with each other, the lifting rod is slidably connected to the center of the oil box, the side of the oil box is fixedly connected to the outer frame, the No. 2 rotating fan is fixedly connected to the scraper, and the isolation ring is fixedly connected to the tail end of the No. 2 rotating fan.

[0008] Preferably, the sphere is arranged between the tail of rotating fan No. 1 and rotating fan No. 3, the outer surface of the sphere is in contact with the end of the hemispherical filter away from the rotating blade, the rotating fan No. 2 is fixedly connected to the isolation ring, the tail end of the scraper is in contact with the hemispherical filter, and the stirring blade is fixedly connected to the tail ends of rotating fan No. 1 and rotating fan No. 3.

[0009] Preferably, the structure of the scraper is the same as that of the rotating blade, a pointer is fixedly provided on the upper surface of the worm gear, and the rotating blade is obliquely provided inside the first rotating fan and the third rotating fan.

[0010] Preferably, a rotating disk is fixedly connected to the front end of the worm, and the first rotating fan and the third rotating fan are distributed on both sides of the sphere.

[0011] Preferably, a synchronization block is fixedly provided inside the No. 3 rotating fan, a scraper block is slidably provided on the inner surface of the sphere, a No. 2 spring is provided inside the scraper block, and a synchronization rod is provided at the front end of the No. 2 spring.

[0012] The present invention has the following beneficial effects: 1. By setting the synchronization block, the scraper block and the stirring blade, the pipe in the sphere and the outer surface of the sphere can be cleaned all the time when the device is turned on, avoiding the problem of gradual accumulation of crystals in the pipe in the sphere, which leads to the gradual blockage of the ball valve channel and the reduction of the life of the ball valve.

[0013] 2. By setting up a hemispherical filter, the surface of the sphere will be scratched when the device is in use, thereby removing crystals on the surface of the sphere and filtering dust in the liquid, so that the device can avoid the problem of the sphere being worn due to dust in the liquid.

[0014] 3. By setting an isolation ring and a scraper, dust will not accumulate on the outer surface of the hemispherical filter, and the dust on the outer surface of the hemispherical filter can be scraped off and fall into the space between the isolation ring and the No. 1 rotating fan.

[0015] 4. By setting up a lubrication component, the valve stem can be lubricated simultaneously when the device changes the on or off state, which saves the device from a daily maintenance item during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of a dust-proof and crystallization-proof hard-sealed ball valve proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of the outer frame of a dust-proof and crystallization-proof hard-sealed ball valve proposed by the present invention; Figure 3 for Figure 2 A magnified image; Figure 4 A cross-sectional view of an oil box in a dust-proof and crystallization-proof hard-sealed ball valve proposed by the present invention; Figure 5 This is a cross-sectional view of a No. 1 rotating fan in a dust-proof and crystallization-proof hard-sealed ball valve proposed by the present invention; Figure 6 A schematic diagram of the position of a scraper in a dust and crystallization proof hard-sealed ball valve proposed by the present invention; Figure 7 A schematic diagram of the position of a ball in a dust and crystallization proof hard-sealed ball valve proposed by the present invention; Figure 8 A schematic diagram of the position of a synchronization block in a dust-proof and crystallization-proof hard-sealed ball valve proposed by the present invention; Fig. 9 A cross-sectional view of a scraper block in a dust-proof and crystallization-proof hard-sealed ball valve proposed by the present invention; Fig.10 This is a schematic structural diagram of a scraper in a dust and crystallization-proof hard-sealed ball valve proposed by the present invention.

[0017] In the figure: 1 housing, 2 outer frame, 3 turntable, 4 No. 1 rotating fan, 5 valve stem, 6 worm, 7 oil box, 8 worm wheel, 9 pointer, 10 synchronization block, 11 threaded plug, 12 lifting block, 13 lifting rod, 14 No. 1 spring, 15 pressure plate, 16 hemispherical filter, 17 stirring blade, 18 No. 2 rotating fan, 19 rotating blade, 20 isolation ring, 21 scraper, 22 No. 3 rotating fan, 23 ball, 24 synchronization rod, 25 No. 2 spring, 26 scraper. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1

[0019] Reference Figure 1-4 , a dustproof and crystallization-proof hard-sealed ball valve, an anti-crystallization component, a dustproof component, and a lubrication component; The lubrication assembly is used to provide lubrication for the valve stem 5. The lubrication assembly consists of an outer frame 2, a worm 6, a worm wheel 8, an oil box 7, a lifting block 12, a lifting rod 13, a No. 1 spring 14, a pressure plate 15, and a threaded plug 11. The worm wheel 8 is meshed with the worm 6. The front end of the worm 6 is fixedly connected to a rotating disk 3. The upper surface of the worm wheel 8 is fixedly provided with a pointer 9. The bottom of the oil box 7 is rotatably connected to the top of the valve stem 5, the threaded plug 11 is threadedly connected to the oil box 7, the worm gear 8 is fixedly connected to the valve stem 5, the lifting block 12 is fixedly connected to the upper surface of the worm gear 8, the first spring 14 is slidably arranged on the lifting rod 13, the pressure plate 15 is fixedly connected to the bottom end of the lifting rod 13, the lifting rod 13 is slidably connected to the center of the oil box 7, and the side of the oil box 7 is fixedly connected to the outer frame 2; When the rotating disk 3 is rotated, the worm 6 will also rotate and drive the worm wheel 8 to rotate. The rotation of the worm wheel 8 will drive the rotation of the lifting block 12. The lifting block 12 will fit with the bottom end of the lifting rod 13 and drive the lifting rod 13 to lift up. A hole is provided on the pressing plate 15 for leaking the lubricating oil. A plurality of holes are provided at the bottom end of the oil box 7. When the lifting rod 13 is lifted, there will be a space between the pressing plate 15 and the oil box 7. The oil in the oil box 7 will fall into the space under the action of gravity and flow along the bottom of the oil box 7 to the valve stem 5 to provide lubrication for the valve stem 5. When the lifting rod 13 is not lifted, the pressing plate 15 will be pressed down under the action of the No. 1 spring 14, and the holes on the lower pressing plate 15 will be blocked. At the same time, the lubricating oil between the pressing plate 15 and the oil box 7 will be squeezed out of the space again. At this time, the lubricating oil in the oil box 7 cannot flow out, so the lubricating oil in the oil box 7 can be saved.

[0020] Furthermore, the upper surface of the lifting block 12 is an inclined plane, and the part where the lower end of the lifting rod 13 contacts the lifting block 12 is also an inclined plane. The two inclined planes have the same angle. When they fit together, the bottom of the lifting rod 13 is less prone to wear. The top of the outer frame 2 is made of transparent glass, so that the user of the device can know at any time whether the ball 23 is in an on or off working state according to the position of the pointer 9.

[0021] Furthermore, the pointer 9 is used to indicate whether the device is turned on or off. When the pointer 9 is parallel to the axis of the housing 1, the device is turned on. When the pointer 9 is perpendicular to the axis of the housing 1 at ninety degrees, it is in the off state. Since the worm wheel 8 and the worm 6 are self-locking, when the user changes the working state of the ball 23 through the turntable 3, the working state of the ball 23 will not be easily changed. The threaded plug 11 can be taken out. The material of the threaded plug 11 is rubber and has a certain elasticity. When the threaded plug 11 is taken out, a notch will appear on the upper surface of the oil box 7, and the user can add lubricating oil to the inside of the oil box 7 through the notch. Embodiment 2

[0022] Different from the first embodiment, Figure 5 , Figure 6 as well as Figure 7 , this embodiment also has the following further contents: The dustproof component consists of a No. 2 rotating fan 18, a scraper 21, an isolation ring 20, and a hemispherical filter 16. The dustproof component is used to prevent dust in the liquid from wearing the sphere 23. The No. 2 rotating fan 18 is fixedly connected to the scraper 21, and the tail end of the scraper 21 fits with the hemispherical filter 16.

[0023] The isolation ring 20 is fixedly connected to the tail end of the No. 2 rotating fan 18, the hemispherical filter 16 is rotatably connected to the No. 1 rotating fan 4, the No. 2 rotating fan 18 is rotatably connected to the inside of the No. 1 rotating fan 4, the No. 2 rotating fan 18 is fixedly connected to the isolation ring 20, and the structure of the scraper 21 is the same as that of the rotating blade 19.

[0024] In this embodiment, the second rotating fan 18 drives the scraper 21 to rotate and scrape the outer surface of the hemispherical filter 16 to prevent the filtered dust from accumulating on the outer surface of the hemispherical filter 16 and affecting the filtering performance. In addition, since the isolation ring 20 is fixedly connected to the second rotating fan 18, when the dust on the outer surface of the hemispherical filter 16 is scraped off, it will fall on the isolation ring 20. Because there is a gap on the isolation ring 20, please refer to Figure 5 As the isolation ring 20 rotates, the gap will inevitably pass through the bottom of the second rotating fan 18. At this time, the dust will fall under the action of gravity and fall into the gap between the isolation ring 20 and the first rotating fan 4. Since the flow of liquid is continuous, the gap on the isolation ring 20 will continuously pass through the bottom of the second rotating fan 18, and the dust will continuously enter the space below the isolation ring 20 through the gap on the isolation ring 20. For details, refer to Figure 5 Due to the existence of the isolation ring 20 , the dust falling into the gap space will not be disturbed by the impact of the liquid and will not affect the filtering performance of the hemispherical filter 16 .

[0025] Furthermore, when the sphere 23 changes its working state, the sphere 23 will scrape the inner surface of the hemispherical filter 16 to clean the surface of the sphere 23, and the hardness of the hemispherical filter 16 is lower than that of the sphere 23, so that the outer surface of the sphere 23 is not worn and the sphere 23 can be cleaned.

[0026] Furthermore, the tail end of the scraper 21 fits against the outer surface of the hemispherical filter 16. When the scraper 21 rotates, its tail end scrapes the outer surface of the hemispherical filter 16 to form a cleaning effect. Since the hemispherical filter 16 is hemispherical in shape, when the liquid flows through the hemispherical filter 16, the flow velocity distribution of the liquid near the filter surface is uneven. The liquid flow velocity at the edge of the hemispherical filter 16 decreases, resulting in relatively high pressure. The movement of particles such as dust in the liquid is affected by multiple factors such as liquid pressure and its own gravity. Dust is more likely to accumulate in the edge area with higher pressure, and the area where the scraper 21 can produce a cleaning effect on the hemispherical filter just coincides with the area where dust is easily accumulated. Embodiment 3

[0027] Reference Figure 7-10 Compared with the first embodiment and the second embodiment, the anti-crystallization component in this embodiment is composed of a shell 1, a No. 1 rotating fan 4, a No. 3 rotating fan 22, a stirring blade 17, a ball 23, a valve stem 5, and a rotating blade 19. The anti-crystallization component is used to prevent crystallization. The ball 23 is fixedly connected to the valve stem 5. The ball 23 is arranged between the tails of the No. 1 rotating fan 4 and the No. 3 rotating fan 22. The outer surface of the ball 23 is in contact with the end of the hemispherical filter 16 away from the rotating blade 19. A scraper block 26 is slidably arranged on the inner surface of the ball 23. A No. 2 spring 25 is arranged in the scraper block 26. A synchronization rod 24 is arranged at the front end of the No. 2 spring 25.

[0028] The first rotating fan 4 and the third rotating fan 22 are rotatably connected to the outer shell 1, the stirring blade 17 is fixedly connected to the tail ends of the first rotating fan 4 and the third rotating fan 22, the rotating blade 19 is obliquely arranged inside the first rotating fan 4 and the third rotating fan 22, the first rotating fan 4 and the third rotating fan 22 are distributed on both sides of the sphere 23 on the left and right, the first rotating fan 4 and the third rotating fan 22 are both arranged inside the outer shell 1 and rotatably connected to the outer shell 1, and a synchronization block 10 is fixedly arranged inside the third rotating fan 22.

[0029] Specifically, refer to Figure 7 When the device is in use, the liquid flows through the sphere 23 from the direction of the No. 1 rotating fan 4, and then flows out of the device through the No. 3 rotating fan 22. The tail of the scraper 21 fits with the outer surface of the hemispherical filter 16. When the liquid rushes through the No. 2 rotating fan 18 and the No. 1 rotating fan 4, they will rotate under the action of the water flow and drive the stirring blade 17 to rotate. The rotation of the stirring blade 17 will stir the local chemical solution. When the chemical solution near the sphere 23 tends to crystallize, the stirring blade 17 will stir the chemical solution in that part, so as to avoid excessive chemical content in the local solution, resulting in chemical precipitation and crystallization.

[0030] For further reference, Fig.10The scraper block 26 is rotatably connected to the channel of the sphere 23, specifically, it rotates along the inner wall of the channel of the sphere 23. When the device is in the on state, the synchronization rod 24 will pop out from the scraper block 26. After the liquid rushes to the No. 3 rotating fan 22, the No. 3 rotating fan 22 will rotate and drive the synchronization block 10 to rotate. When it rotates to a certain angle, the synchronization block 10 will cooperate with the synchronization rod 24 and be driven to rotate by the No. 3 rotating fan 22, so that the scraper block 26 can scrape off the crystals in the channel of the sphere 23.

[0031] For further reference, Fig. 9 and Fig.10 When the device is cut off, the synchronization rod 24 can be pressed into the scraper block 26. When it is turned on, the user rotates the turntable 3 to rotate the worm gear 8, and the synchronization rod 24 will pop out under the action of the No. 2 spring 25. When in use, it should be noted that the front end of the synchronization rod 24 is an inclined plane. When the ball 23 changes the working state to cut off, the rotation direction of the ball 23 should be the same as the direction away from the synchronization block 10, that is, the side of the front end non-inclined plane of the synchronization rod 24 matches the notch on the synchronization block 10, and when the ball 23 rotates 90 degrees, the inclined part of the front end of the synchronization rod 24 will press on the inner wall of the No. 3 rotating fan 22 and shrink toward the inside of the scraper block 26. When the ball 23 rotates 90 degrees, the synchronization rod 24 can be completely received in the scraper block 26.

[0032] Furthermore, the first rotating fan 4 and the third rotating fan 22 have the same rotation direction, see Figure 8 The rotation direction of the No. 3 rotating fan 22 is clockwise, that is, the No. 3 rotating fan 22 will only rotate in the direction where the notch on the synchronous block 10 exists. When the ball 23 is in the on state, the synchronous block 10 will also rotate with the No. 3 rotating fan 22. At this time, the synchronization rod 24 will extend, and the arc side of the synchronization rod 24 will cooperate with the notch on the synchronous block 10 during the rotation of the synchronous block 10, so that the power of the rotation of the No. 3 rotating fan 22 is transmitted to the scraper block 26, so that the scraper block 26 can clean the channel of the ball 23.

[0033] refer to Fig.10 and Figure 7 The passage in the sphere 23 is cylindrical, and the scraper block 26 is slidably connected to the inner surface of the sphere 23, that is, the sliding of the scraper block 26 rotates along the axis of the passage in the sphere 23, thereby cleaning the passage of the sphere 23.

[0034] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A dustproof and crystallization-proof hard-sealed ball valve, comprising an anti-crystallization component, a dustproof component, and a lubrication component, characterized in that: The anti-crystallization component comprises a housing (1), a first rotating fan (4), a third rotating fan (22), a stirring blade (17), a ball (23), a valve stem (5), and a rotating blade (19); the anti-crystallization component is used to prevent crystallization; the ball (23) is fixedly connected to the valve stem (5); and the first rotating fan (4) and the third rotating fan (22) are rotatably connected to the housing (1); The dustproof component is composed of a No. 2 rotating fan (18), a scraper (21), an isolation ring (20), and a hemispherical filter (16). The dustproof component is used to prevent dust in the liquid from wearing the sphere (23). The hemispherical filter (16) is rotatably connected to the No. 1 rotating fan (4), and the No. 2 rotating fan (18) is rotatably connected to the inside of the No. 1 rotating fan (4).

2. The dust-proof and crystallization-proof hard-sealed ball valve according to claim 1, characterized in that: The lubrication assembly comprises an outer frame (2), a worm (6), a worm wheel (8), an oil box (7), a lifting block (12), a lifting rod (13), a No. 1 spring (14), a pressure plate (15), and a threaded plug (11). The lubrication assembly is used to provide lubrication for the valve stem (5). The worm wheel (8) is fixedly connected to the valve stem (5), the lifting block (12) is fixedly connected to the upper surface of the worm wheel (8), the No. 1 spring (14) is slidably arranged on the lifting rod (13), and the pressure plate (15) is fixedly connected to the bottom end of the lifting rod (13).

3. The dust-proof and crystallization-proof hard-sealed ball valve according to claim 2, characterized in that: The bottom of the oil box (7) is rotatably connected to the top of the valve stem (5), the threaded plug (11) is threadedly connected to the oil box (7), the worm wheel (8) and the worm (6) are meshed with each other, the lifting rod (13) is slidably connected to the center of the oil box (7), the side of the oil box (7) is fixedly connected to the outer frame (2), the second rotating fan (18) is fixedly connected to the scraper (21), and the isolation ring (20) is fixedly connected to the tail end of the second rotating fan (18).

4. The dust-proof and crystallization-proof hard-sealed ball valve according to claim 1, characterized in that: The sphere (23) is arranged between the tails of the first rotating fan (4) and the third rotating fan (22); the outer surface of the sphere (23) is in contact with one end of the hemispherical filter (16) away from the rotating blade (19); the second rotating fan (18) is fixedly connected to the isolation ring (20); the tail end of the scraper (21) is in contact with the hemispherical filter (16); and the stirring blade (17) is fixedly connected to the tail ends of the first rotating fan (4) and the third rotating fan (22).

5. The dust-proof and crystal-proof hard-sealed ball valve according to claim 1, characterized in that: The structure of the scraper (21) is the same as that of the rotating blade (19), a pointer (9) is fixedly provided on the upper surface of the worm wheel (8), and the rotating blade (19) is obliquely provided inside the first rotating fan (4) and the third rotating fan (22).

6. The dust-proof and crystal-proof hard-sealed ball valve according to claim 2, characterized in that: The front end of the worm (6) is fixedly connected to a rotating disk (3), and the first rotating fan (4) and the third rotating fan (22) are distributed on both sides of the sphere (23) in a left-right manner.

7. The dust-proof and crystal-proof hard-sealed ball valve according to claim 1, characterized in that: A synchronization block (10) is fixedly arranged inside the third rotating fan (22), a scraper block (26) is slidably arranged on the inner surface of the sphere (23), a second spring (25) is arranged inside the scraper block (26), and a synchronization rod (24) is arranged at the front end of the second spring (25).

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