Filtering ball valve

Abstract

The invention relates to the field of valves, in particular to a filtering ball valve which comprises a valve body and a filtering assembly, the valve body is provided with a flowing cavity allowing liquid to pass through, the valve body is provided with a filtering cavity, the filtering cavity is communicated with the flowing cavity, the filtering assembly comprises a filtering net, a magnetic block and a filtering seat, and the filtering seat is connected to the valve body and seals the filtering cavity. The filter screen is embedded into the filter cavity, the inner wall of the filter cavity and the surface of the filter seat abut against the surface of the filter screen to form fixation, the magnetic block is connected to the filter seat and can adsorb iron-containing impurities in water, and when water in the flowing cavity enters the filter cavity, the water passes through the magnetic block, then is filtered by the filter screen and then is discharged. Through the arrangement of the filter screen, the magnetic block and the filter seat, the cleaning difficulty of a user on the filter screen is reduced, the cleaning period of the user on the filter screen is shortened, the frequency of replacing the filter screen by the user is reduced, the energy loss is reduced, and the concept of energy conservation is embodied, so that the convenience of using the filter ball valve by the user is improved.

Description

Technical Field

[0001] This application relates to the field of valves, and more particularly to a filter ball valve. Background Technology

[0002] A ball valve is a valve in which the ball is driven by the valve stem and rotates around the valve's axis. Existing ball valves often include a filter screen to remove impurities from the water.

[0003] When a ball valve is used for a long time, iron impurities in the water can easily adhere to the filter screen and clog the filter pores, making it more difficult for users to clean the filter screen and thus extending the cleaning cycle. Summary of the Invention

[0004] In order to improve the problem that iron impurities in water easily adhere to the filter screen and clog the filter screen pores, this application provides a filter ball valve.

[0005] This application provides a filter ball valve, which adopts the following technical solution: A filter ball valve includes a valve body and a filter assembly. The valve body has a flow chamber for liquid to pass through, and a filter chamber is provided in the valve body, which is connected to the flow chamber. The filter assembly includes a filter screen, a magnetic block, and a filter seat. The filter seat is connected to the valve body and closes the filter chamber. The filter screen is embedded in the filter chamber, and the inner wall of the filter chamber and the surface of the filter seat abut against the surface of the filter screen to form a fixed structure. The magnetic block is connected to the filter seat and can adsorb iron-containing impurities in the water. When water in the flow chamber enters the filter chamber, the water first passes through the magnetic block and then is filtered by the filter screen before being discharged.

[0006] By adopting the above technical solution, when the filter ball valve is in use, water enters the flow chamber, and the water in the flow chamber enters the filter chamber. The magnetic block is connected to the filter seat. The magnetic block first adsorbs and collects iron-containing impurities in the water, realizing the preliminary screening of impurities in the water. The water with iron-containing impurities removed is then filtered through the filter screen and discharged, improving the cleaning efficiency of impurities in the water. At the same time, iron-containing impurities in the water are less likely to adhere to the filter screen and clog the filter pores, ensuring the stability of the filter screen, reducing the difficulty of cleaning the filter screen for users, shortening the cleaning cycle of the filter screen, reducing the number of times the filter screen needs to be replaced, reducing energy consumption, reflecting the concept of energy saving, and thus improving the ease of use of the filter ball valve for users.

[0007] Optionally, the filter seat includes a sleeve and a sealing plate. The sleeve is connected to the valve body and closes the filter chamber. The filter screen surrounds the sleeve. The sealing plate is connected to the side of the sleeve away from the valve body and closes the inner cavity of the sleeve. The magnetic block is embedded in the inner cavity of the sleeve. The magnetic block drives iron-containing impurities in the water to be adsorbed onto the outer wall of the sleeve located inside the filter chamber.

[0008] By adopting the above technical solution, one end of the sleeve is connected to the valve body and seals the filter chamber, while the other end of the sleeve is connected to the sealing plate. The sealing plate seals the inner cavity of the sleeve, and the magnetic block is embedded in the inner cavity of the sleeve. When water in the flow chamber enters the filter chamber, the filter screen surrounds the outer circumference of the sleeve, and the magnetic force of the magnetic block drives the iron-containing impurities in the water to be adsorbed on the outer circumference of the sleeve, thereby cleaning the iron-containing impurities in the water. At the same time, when it is necessary to clean the impurities on the outer circumference of the sleeve, the user drives the sealing plate to detach from the sleeve, so that the sealing effect of the sealing plate on the sleeve disappears, and the magnetic block is removed, so that the magnetic force of the iron-containing impurities on the outer circumference of the sleeve disappears. This makes it convenient for the user to clean the iron-containing impurities on the outer circumference of the sleeve, further improving the ease of use of the filter ball valve.

[0009] Optionally, a limiting post is connected to the surface of the sealing plate facing the inner cavity of the sleeve, and a limiting hole is provided on the magnetic block for the limiting post to pass through. When the limiting post passes through the limiting hole, the outer circumferential wall of the limiting post abuts against the inner wall of the limiting hole to form a fixed structure.

[0010] By adopting the above technical solution, when installing the magnetic block, the user drives the end of the limiting post to pass through the limiting hole, and the outer wall of the limiting post abuts against the inner wall of the limiting hole to form a fixation, thus realizing the initial installation of the magnetic block and the sealing plate. At the same time, the user drives the sealing plate to connect to the sleeve, and the magnetic block is located in the inner ring of the sleeve. The limiting post limits the magnetic block to offset within the inner cavity of the sleeve. The magnetic block stably drives the iron-containing impurities in the water to be adsorbed on the outer periphery of the sleeve, thereby improving the cleaning efficiency of iron-containing impurities in the water.

[0011] Optionally, the outer circumferential thread of the limiting post has a limiting nut, which is located at the end of the limiting post away from the sealing plate, and the limiting nut limits the magnetic block to the limiting post.

[0012] By adopting the above technical solution, when the end of the limiting post is provided with a limiting hole, the outer wall of the limiting post abuts against the inner wall of the limiting hole to form a preliminary fixation. At the same time, the limiting nut is threadedly connected to the end of the limiting post away from the sealing plate, and the magnetic block is limited between the limiting nut and the sealing plate, making it difficult for the magnetic block to detach from the limiting post, thereby improving the connection stability between the magnetic block and the limiting post.

[0013] Optionally, multiple magnetic blocks are provided, and multiple deformation rings are connected to the limiting post. The magnetic blocks and deformation rings are sequentially and alternately sleeved on the limiting post, and adjacent magnetic blocks clamp the deformation rings to form a limiting position.

[0014] By adopting the above technical solution, magnetic blocks and deformation rings are sequentially and alternately sleeved on the limiting post. Adjacent magnetic blocks clamp the deformation ring to form a limit, and the deformation ring is deformed by the compression of the magnetic blocks, reducing the wear between the magnetic blocks, thereby ensuring the stability of the operation of the filter ball valve.

[0015] Optionally, a heat insulation ring is connected to the magnetic block, and the heat insulation ring is sleeved on the outer periphery of the magnetic block.

[0016] By adopting the above technical solution, when a high-temperature liquid enters the filter chamber, the liquid transfers some of its heat energy to the sleeve. After the sleeve heats up, it transfers the heat energy to the insulation ring. The insulation ring has a high specific heat capacity and heats up slowly. The insulation ring stably absorbs the heat energy from the air inside the sleeve, making it less likely for the magnetic block to operate at a high temperature and demagnetize. This ensures the stability of the magnetic block's adsorption of iron-containing impurities in the water, while reducing the number of times the magnetic block needs to be replaced, reducing material consumption, and embodying the concept of environmental protection.

[0017] Optionally, a cleaning assembly is connected to the sleeve. The cleaning assembly includes a cleaning ring and a shape memory alloy. The cleaning ring is slidably connected to the outer periphery of the sleeve, and the inner wall of the cleaning ring abuts against the outer periphery of the sleeve. A cleaning cavity is formed in the outer wall of the sleeve. One end of the shape memory alloy is connected to the inner wall of the cleaning cavity, and the other end of the shape memory alloy is connected to the cleaning ring. When the temperature of the liquid in the filter cavity rises, the shape memory alloy heats up and contracts, driving the cleaning ring to slide towards the cleaning cavity. The inner wall of the cleaning ring abuts against the outer periphery of the sleeve and drives iron-containing impurities into the cleaning cavity.

[0018] By adopting the above technical solution, when the temperature of the liquid entering the filter chamber is too high, the liquid in the filter chamber will transfer some of the heat energy to the shape memory alloy. The shape memory alloy heats up and contracts, driving the cleaning ring to slide towards the cleaning chamber. The inner ring of the cleaning ring presses against the outer circumference of the sleeve and drives the iron-containing impurities adhering to the outer circumference of the sleeve into the cleaning chamber, thereby achieving the collection of iron-containing impurities.

[0019] Optionally, a slider is connected to the cleaning ring, and a groove is provided on the outer wall of the sleeve for the slider to slide. The groove is connected to the cleaning cavity. When the cleaning ring is slidably connected to the outer wall of the sleeve, it drives the slider to slide and connect to the inner wall of the groove.

[0020] By adopting the above technical solution, when the shape memory alloy heats up and contracts, it drives the cleaning ring to slide and connect to the sleeve, which in turn drives the slider to slide and connect to the inner wall of the groove. This makes it less likely for the cleaning ring to deviate when sliding on the outer wall of the sleeve, thereby improving the stability of the cleaning ring sliding on the outer wall of the sleeve.

[0021] Optionally, the sleeve has a collection groove on its surface facing the filter chamber. The collection groove is connected to the cleaning chamber. A filter ring is connected to the inner wall of the collection groove near the filter chamber. The filter screen surface and the inner wall of the collection groove clamp the filter ring surface to form a fixed structure.

[0022] By adopting the above technical solution, the cleaning ring drives the iron-containing impurities on the outer periphery of the sleeve into the cleaning chamber. When the sleeve needs to be cleaned, it drives the sleeve to detach from the valve body. The pressing effect of the inner wall of the filter chamber on the filter screen disappears, and the limiting effect of the filter screen on the filter ring also disappears. The filter ring is then removed, driving the sealing plate to detach from the sleeve, thus eliminating the magnetic force of the iron-containing impurities. The user then uses water to flush the cleaning chamber, driving the iron-containing impurities in the cleaning chamber to be discharged from the collection tank, thereby cleaning the sleeve. This eliminates the need for the user to scrape off the iron-containing impurities on the outer wall of the sleeve sequentially, thereby improving the user's cleaning efficiency for the filter ball valve.

[0023] Optionally, a warning assembly is connected to the filter base. The warning assembly includes a warning horn and a contact switch. The warning horn is connected to the surface of the sealing plate, and the contact switch is connected to the inner wall of the slide near the cleaning chamber. The contact switch is electrically connected to the warning horn. The contact switch can abut against the slider and conduct electricity, so that the warning horn is energized and emits a sound.

[0024] By adopting the above technical solution, when the temperature of the liquid flowing into the filter chamber is too high, the shape memory alloy heats up and contracts, driving the cleaning ring to slide towards the cleaning chamber. At the same time, the slider slides along the inner wall of the groove towards the cleaning chamber. The electric switch abuts against the slider and conducts, and the warning horn is energized and emits a sound, thereby alerting the user to control the temperature of the liquid passing through the filter ball valve.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. The arrangement of the filter screen, magnetic block, and filter base reduces the difficulty of cleaning the filter screen for users, shortens the cleaning cycle, reduces the number of times the filter screen needs to be replaced, reduces energy consumption, embodies the concept of energy saving, and thus improves the ease of use of the filter ball valve for users. 2. The design of the sleeve and sealing plate eliminates the magnetic force of iron-containing impurities on the outer periphery of the sleeve, making it easier for users to clean iron-containing impurities on the outer periphery of the sleeve and further improving the ease of use of the filter ball valve. 3. The heat insulation ring prevents the magnetic block from demagnetizing due to high temperature, thus ensuring the stability of the magnetic block's adsorption of iron-containing impurities in the water. It also reduces the frequency of magnetic block replacement, reduces material consumption, and embodies the concept of environmental protection. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0027] Figure 2 This is a cross-sectional view of Embodiment 1 of this application.

[0028] Figure 3 This is a cross-sectional view of Embodiment 2 of this application.

[0029] Figure 4 This is a partial cross-sectional view of Embodiment 2 of this application, mainly showing the cleaning components.

[0030] Explanation of reference numerals in the attached drawings: 1. Valve body; 11. Flow chamber; 111. Inlet; 112. Outlet; 12. Filter chamber; 2. Filter assembly; 21. Filter screen; 22. Magnetic block; 221. Limiting hole; 23. Filter seat; 231. Sleeve; 2311. Cylindrical part; 2312. Circular part; 2313. Slide groove; 2314. Collection groove; 2315. Cleaning chamber; 232. Sealing plate; 3. Sealing ring one; 4. Sealing ring two; 5. Limiting post; 6. Deformation ring; 7. Limiting nut; 8. Heat insulation ring; 9. Cleaning assembly; 91. Cleaning ring; 92. Shape memory alloy; 10. Slider; 13. Filter ring; 14. Warning assembly; 141. Warning horn; 142. Contact switch. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] This application discloses a filter ball valve.

[0033] Example 1 Reference Figure 1 and Figure 2 A filter ball valve includes a valve body 1 and a filter assembly 2. The valve body 1 has a flow chamber 11 for liquid to pass through, and a filter chamber 12 is provided on the valve body 1. In this embodiment, the filter chamber 12 is a cylindrical cavity and is connected to the flow chamber 11. The filter assembly 2 can filter impurities in the water in the filter chamber 12. The filter assembly 2 includes a filter screen 21, a magnetic block 22, and a filter seat 23. The filter seat 23 is screwed onto the valve body 1 and closes the filter chamber 12. In this embodiment, the filter screen 21 is a ring and is coaxially embedded in the filter chamber 12. The inner wall of the filter chamber 12 and the surface of the filter seat 23 clamp the two ends of the axis of the filter screen 21 to form a fixed structure. The filter screen 21 divides the filter chamber 12 into an inlet section 111 and an outlet section 112. The opening of the filter chamber 12 faces the inlet section 111, and the filter chamber 12 is inclined towards the outlet section 112. The magnetic block 22 is connected to the filter base 23, and the filter screen 21 surrounds the magnetic block 22. The magnetic block 22 can adsorb iron-containing impurities in the water.

[0034] Reference Figure 2Water enters the filter chamber 12 through the inlet 111. The magnetic block 22 adsorbs iron-containing impurities in the water in the filter chamber 12. The water with iron-containing impurities removed then passes through the filter screen 21 for filtration. This makes it difficult for iron-containing impurities to adhere to the filter screen 21 and block the filter pores on the filter screen 21, thus reducing the difficulty of cleaning the filter screen 21 for users, shortening the cleaning cycle of the filter screen 21, reducing the number of times the filter screen 21 needs to be replaced, reducing energy consumption, reflecting the concept of energy saving, and thus improving the ease of use of the filter ball valve for users.

[0035] Reference Figure 2 The filter seat 23 includes a sleeve 231 and a sealing plate 232. The sleeve 231 includes a cylindrical portion 2311 and an annular portion 2312. The inner ring of the annular portion 2312 is coaxially welded and fixed to the outer circumference of the cylindrical portion 2311 to form the sleeve 231. The outer circumference of the annular portion 2312 is threadedly connected to the inner wall of the filter chamber 12 to form a fixed connection. A sealing ring 3 is coaxially connected to the outer circumference of the annular portion 2312. The material of the sealing ring 3 can be rubber or silicone. In this embodiment, the material of the sealing ring 3 is rubber, which has a certain deformation capability. The inner ring of the sealing ring 3 coaxially abuts against the outer circumference of the annular portion 2312 to form a seal, and the outer ring of the sealing ring 3 coaxially abuts against the inner wall of the filter chamber 12 to form a seal, making it difficult for the liquid in the filter chamber 12 to overflow, thereby improving the sealing stability of the filter ball valve.

[0036] Reference Figure 2 The cylindrical portion 2311 is located inside the filter chamber 12, and the inner cavity of the cylindrical portion 2311 is separated from the filter chamber 12. A magnetic block 22 is embedded in the inner cavity of the cylindrical portion 2311. The magnetic block 22 drives iron-containing impurities in the water to adhere to the outer periphery of the cylindrical portion 2311, thus cleaning the iron-containing impurities in the water. The axis of the cylindrical portion 2311 coincides with the axis of the filter chamber 12. The filter screen 21 surrounds the cylindrical portion 2311, and the surface of the annular portion 2312 and the inner wall of the filter chamber 12 clamp the two ends of the axis of the filter screen 21 to form a fixed structure. The outer periphery of the sealing plate 232 is threadedly connected to the inner wall of the cylindrical portion 2311 to form a fixed structure and seal the inner cavity of the cylindrical portion 2311. A sealing ring 4 is coaxially connected to the outer periphery of the sealing plate 232. The sealing ring 4 can be made of rubber or silicone. In this embodiment, the material of the sealing ring 4 is rubber, which has a certain deformation capability. This prevents external impurities from easily entering the inner cavity of the cylinder 2311, reduces the wear of the magnetic block 22 inside the cylinder 2311, and thus improves the service life of the filter ball valve.

[0037] Reference Figure 2In this embodiment, the sealing plate 232 is cylindrical. A limiting post 5 is coaxially welded to the surface of the sealing plate 232 facing the inner cavity of the sleeve 231. The number of magnetic blocks 22 can be one, two, or more. In this embodiment, there are two magnetic blocks 22. The magnetic blocks 22 are cylindrical. A limiting hole 221 for the limiting post 5 to pass through is coaxially opened on the surface of the magnetic blocks 22. The limiting hole 221 penetrates the outer wall of the magnetic blocks 22. Multiple deformation rings 6 are connected to the limiting post 5. The deformation rings 6 can be rubber or silicone. In this embodiment, the magnetic blocks 22 and the deformation rings 6 are sequentially and coaxially sleeved on the outer wall of the limiting post 5. The outer wall of the limiting post 5 abuts against the inner wall of the limiting hole 221 to form a limiting, and adjacent magnetic blocks 22 clamp the deformation rings 6 to form a limiting.

[0038] Reference Figure 2 The end of the limiting post 5 away from the sealing plate 232 is threadedly connected to the limiting nut 7. The limiting nut 7 and the sealing plate 232 limit the deformation ring 6 and the magnetic block 22 on the limiting post 5. The magnetic block 22 and the deformation ring 6 are not easy to detach from the limiting post 5, so that the magnetic block 22 is not easy to shift in the inner cavity of the sleeve 231, thereby ensuring the stability of the magnetic block 22 driving the iron-containing impurities in the water to be adsorbed on the outer periphery of the sleeve 231.

[0039] The implementation principle of a filter ball valve in Embodiment 1 of this application is as follows: When the filter ball valve is in use, water enters the filter chamber 12 through the inlet 111. The magnetic block 22 first causes iron-containing impurities in the water to be adsorbed on the outer periphery of the sleeve 231, realizing the preliminary screening of impurities in the water. The water with iron-containing impurities removed then passes through the filter screen 21 and enters the outlet 112 for discharge, improving the cleaning efficiency of impurities in the water. At the same time, iron-containing impurities in the water are not easily adhered to the filter screen 21 and blocked the filter holes on the filter screen 21, ensuring the stability of the filter screen 21, reducing the difficulty of cleaning the filter screen 21 for users, shortening the cleaning cycle of the filter screen 21, reducing the number of times the filter screen 21 needs to be replaced, reducing energy consumption, reflecting the concept of energy saving, and thus improving the ease of use of the filter ball valve for users.

[0040] Example 2 Reference Figure 3 and Figure 4 The difference between Embodiment 2 and Embodiment 1 is that a heat insulation ring 8 is connected to the magnetic block 22. The material of the heat insulation ring 8 can be expanded polystyrene board or extruded polystyrene board. In this embodiment, the material of the heat insulation ring 8 is expanded polystyrene board. The heat insulation ring 8 is coaxially sleeved on the outer periphery of the magnetic block 22, and the inner ring of the heat insulation ring 8 abuts against the outer periphery of the magnetic block 22 to form a limit. When the temperature of the liquid in the filter chamber 12 rises, the heat insulation ring 8 blocks the heat energy in the liquid in the filter chamber 12 from being transferred to the magnetic block 22, making it less likely for the magnetic block 22 to demagnetize under high temperature conditions. This ensures the stability of the operation of the magnetic block 22, reduces the number of times the magnetic block 22 needs to be replaced, reduces material consumption, and embodies the concept of environmental protection.

[0041] Reference Figure 3 and Figure 4 A cleaning component 9 is connected to the sleeve 231. The cleaning component 9 can clean impurities on the outer periphery of the cylinder 2311. The cleaning component 9 includes a cleaning ring 91 and a shape memory alloy 92. The cleaning ring 91 is slidably connected to the outer periphery of the cylinder 2311. The sliding direction of the cleaning ring 91 coincides with the axis of the cylinder 2311. When the cleaning ring 91 slides along the axis of the cylinder 2311, the inner wall of the cleaning ring 91 presses against the outer periphery of the cylinder 2311 and scrapes away the impurities on the outer periphery of the cylinder 2311, thereby cleaning the outer periphery of the cylinder 2311. A cleaning chamber 2315 is coaxially formed on the outer periphery of the cylinder 2311. The cleaning chamber 2315 is connected to the filter chamber 12, and the opening of the cleaning chamber 2315 faces the cleaning ring 91. One end of the shape memory alloy 92 is fixed to the inner wall of the cleaning chamber 2315, and the other end of the shape memory alloy 92 is fixed to the cleaning ring 91. When the temperature of the liquid in the filter chamber 12 is too high, the shape memory alloy 92 heats up and contracts, driving the cleaning ring 91 to slide closer to the cleaning chamber 2315. The inner wall of the cleaning ring 91 presses against the outer periphery of the sleeve 231 and drives the iron-containing impurities on the outer periphery of the sleeve 231 into the cleaning chamber 2315. The outer wall of the cleaning ring 91 presses against the inner wall of the cleaning chamber 2315 to form a seal, thereby collecting the iron-containing impurities.

[0042] Reference Figure 4 A slider 10 is fixed to the inner wall of the cleaning ring 91, and a groove 2313 is provided on the outer wall of the cylinder 2311 for the slider 10 to slide. The groove 2313 is a strip-shaped groove, and the length direction of the groove 2313 is parallel to the axis of the cylinder 2311. The groove 2313 is connected to the cleaning cavity 2315. When the cleaning ring 91 is slidably connected to the outer circumference of the cylinder 2311, it drives the slider 10 to slide and connect to the inner wall of the groove 2313, so that the cleaning ring 91 is not easy to deviate when sliding on the outer wall of the cylinder 2311, thereby improving the stability of the sliding of the cleaning ring 91.

[0043] Reference Figure 3 and Figure 4A collection groove 2314 is coaxially formed on the surface of the annular portion 2312 facing the filter chamber 12. In this embodiment, the collection groove 2314 is an annular groove and is connected to the cleaning chamber 2315. A filter ring 13 is connected to the annular part 2312. The filter ring 13 is coaxially embedded in the collection groove 2314. The surface of the filter screen 21 and the inner wall of the collection groove 2314 clamp the filter ring 13 to form a fixed structure. The filter ring 13 can filter impurities in the water. When the cleaning ring 91 drives the impurities on the outer periphery of the cylindrical part 2311 to accumulate in the cleaning chamber 2315, the user unscrews the annular part 2312 to separate the sleeve 231 and the valve body 1. The limiting effect of the filter screen 21 on the filter ring 13 disappears. The filter ring 13 is removed, and the sealing plate 232 is unscrewed, so that the magnetism of the impurities in the cleaning chamber 2315 disappears. The user uses water to flush the cleaning chamber 2315, causing the impurities in the cleaning chamber 2315 to be discharged from the collection groove 2314, thus cleaning the sleeve 231.

[0044] Reference Figure 3 and Figure 4 A warning component 14 is connected to the filter seat 23. The warning component 14 can alert the user that the liquid temperature in the filter chamber 12 is too high or too low. The warning component 14 includes a warning horn 141 and a contact switch 142. The contact switch 142 is fixed to the inner wall of the slide groove 2313 near the cleaning chamber 2315. The warning horn 141 is fixed to the surface of the sealing plate 232 by screws. The contact switch 142 and the warning horn 141 are electrically connected. When the slider 10 slides towards the cleaning chamber 2315 and abuts against the contact switch 142, the contact switch 142 is triggered and conducts, and the warning horn 141 is energized to emit an audible warning to the user. The user can adjust the liquid temperature passing through the filter ball valve in time, improving the safety of using the filter ball valve. The implementation principle of a filter ball valve in Embodiment 2 of this application is as follows: When the liquid temperature in the filter chamber 12 is too high, the shape memory alloy 92 heats up and contracts, driving the cleaning ring 91 to slide towards the cleaning chamber 2315. The inner wall of the cleaning ring 91 presses against the outer periphery of the sleeve 231 and drives the iron-containing impurities on the outer periphery of the sleeve 231 into the cleaning chamber 2315. The outer wall of the cleaning ring 91 presses against the inner wall of the cleaning chamber 2315 to form a seal, thereby collecting the iron-containing impurities. The user does not need to clean the iron-containing impurities on the outer periphery of the sleeve 231, which improves the ease of use of the filter ball valve.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A filter ball valve, characterized in that: The system includes a valve body (1) and a filter assembly (2). The valve body (1) has a flow chamber (11) through which liquid passes. The valve body (1) has a filter chamber (12) which is connected to the flow chamber (11). The filter assembly (2) includes a filter screen (21), a magnetic block (22), and a filter seat (23). The filter seat (23) is connected to the valve body (1) and closes the filter chamber (12). The filter screen (21) is embedded in the filter chamber (12). The inner wall of the filter chamber (12) and the surface of the filter seat (23) are pressed against the surface of the filter screen (21) to form a fixed structure. The magnetic block (22) is connected to the filter seat (23). The magnetic block (22) can adsorb iron-containing impurities in the water. When water in the flow chamber (11) enters the filter chamber (12), the water first passes through the magnetic block (22) and then is filtered by the filter screen (21) before being discharged.

2. The filter ball valve according to claim 1, characterized in that: The filter seat (23) includes a sleeve (231) and a sealing plate (232). The sleeve (231) is connected to the valve body (1) and closes the filter chamber (12). The filter screen (21) surrounds the sleeve (231). The sealing plate (232) is connected to the side of the sleeve (231) away from the valve body (1) and closes the inner cavity of the sleeve (231). The magnetic block (22) is embedded in the inner cavity of the sleeve (231). The magnetic block (22) drives iron-containing impurities in the water to be adsorbed on the outer wall of the sleeve (231) located in the filter chamber (12).

3. The filter ball valve according to claim 2, characterized in that: The sealing plate (232) is connected to a limiting post (5) on the surface facing the inner cavity of the sleeve (231). The magnetic block (22) is provided with a limiting hole (221) for the limiting post (5) to pass through. When the limiting post (5) passes through the limiting hole (221), the outer circumferential wall of the limiting post (5) abuts against the inner wall of the limiting hole (221) to form a fixed position.

4. The filter ball valve according to claim 3, characterized in that: The limiting post (5) has a limiting nut (7) on its outer circumferential thread. The limiting nut (7) is located at the end of the limiting post (5) away from the sealing plate (232). The limiting nut (7) limits the magnetic block (22) to the limiting post (5).

5. The filter ball valve according to claim 3, characterized in that: Multiple magnetic blocks (22) are provided, and multiple deformation rings (6) are connected to the limiting post (5). The magnetic blocks (22) and deformation rings (6) are sequentially and spaced on the limiting post (5). Adjacent magnetic blocks (22) clamp the deformation rings (6) to form a limiting position.

6. The filter ball valve according to claim 3, characterized in that: A heat insulation ring (8) is connected to the magnetic block (22), and the heat insulation ring (8) is sleeved on the outer periphery of the magnetic block (22).

7. The filter ball valve according to claim 2, characterized in that: A cleaning assembly (9) is connected to the sleeve (231). The cleaning assembly (9) includes a cleaning ring (91) and a shape memory alloy (92). The cleaning ring (91) is slidably connected to the outer periphery of the sleeve (231). The inner wall of the cleaning ring (91) is pressed against the outer periphery of the sleeve (231). A cleaning cavity (2315) is opened on the outer wall of the sleeve (2315). One end of the shape memory alloy (92) is connected to the inner wall of the cleaning cavity (2315), and the other end of the shape memory alloy (92) is connected to the cleaning ring (91). When the temperature of the liquid in the filter chamber (12) rises, the shape memory alloy (92) heats up and contracts, driving the cleaning ring (91) to slide closer to the cleaning cavity (2315). The inner wall of the cleaning ring (91) presses against the outer periphery of the sleeve (231) and drives iron-containing impurities into the cleaning cavity (2315).

8. The filter ball valve according to claim 7, characterized in that: The cleaning ring (91) is connected to a slider (10), and the outer wall of the sleeve (231) is provided with a groove (2313) for the slider (10) to slide. The groove (2313) is connected to the cleaning cavity (2315). When the cleaning ring (91) is slidably connected to the outer wall of the sleeve (231), it drives the slider (10) to slide on the inner wall of the groove (2313).

9. The filter ball valve according to claim 8, characterized in that: The sleeve (231) has a collection groove (2314) on its surface facing the filter chamber (12). The collection groove (2314) is connected to the cleaning chamber (2315). The collection groove (2314) is connected to a filter ring (13) near the inner wall of the filter chamber (12). The surface of the filter screen (21) and the inner wall of the collection groove (2314) clamp the surface of the filter ring (13) to form a fixed structure.

10. The filter ball valve according to claim 8, characterized in that: The filter seat (23) is connected to a warning component (14), which includes a warning horn (141) and a contact switch (142). The warning horn (141) is connected to the surface of the sealing plate (232), and the contact switch (142) is connected to the inner wall of the slide groove (2313) near the cleaning chamber (2315). The contact switch is electrically connected to the warning horn (141), and the contact switch (142) can abut against the slider (10) and conduct electricity. The warning horn (141) is energized and emits a sound.

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