Filtering three-way ball valve

Abstract

The utility model relates to the technical field of three-way ball valves, in particular to a filtering three-way ball valve which comprises a three-way valve body, a three-way valve element and a rotating handle and further comprises a spiral impeller, a first filter screen and a second filter screen. The first filter screen and the second filter screen are both arranged on the three-way valve element and located at the two water passing ends of the three-way valve element respectively. By arranging the spiral impeller, when the first filter screen or the second filter screen is cleaned, the spiral impeller can enhance the scouring force of water flow and impact the first filter screen or the second filter screen, and impurities on the first filter screen or the second filter screen are flushed away through rotating water flow and then discharged through the water outlet end without the filter screen. And impurities on the first filter screen or the second filter screen can be effectively removed, and the filter screens of the three-way ball valve can be rapidly cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of three-way ball valves, and more particularly to a filtering three-way ball valve. Background Art

[0002] Three-way ball valves come in T and L types. The T type connects three orthogonal pipes and cuts off the third channel, providing both diversion and converging functions. The L type connects only two orthogonal pipes and cannot simultaneously maintain connectivity with the third channel, serving only as a distributor. Due to its unique shape, three-way ball valves can easily accumulate impurities within the valve core over long-term use, affecting sealing and flow efficiency.

[0003] The prior art discloses a filtering three-way ball valve, in which the inner cavity of the valve body is movably connected to a valve ball, the top of the valve ball is fixedly connected to a valve stem, the top of the valve stem passes through the inner cavity of the valve body and extends to the outside of the valve body, a sealing ring is provided on the bottom of the valve stem surface, a sealing seat is fixedly connected to the top of the valve stem surface, a connecting rod is fixedly connected to the top of the valve stem surface and located above the sealing seat, a first bolt is fixedly connected to the top of the valve stem, and a mounting seat is fixedly connected to the inside of the valve ball. The coordinated use of the valve body, valve ball, valve stem, sealing ring, sealing seat, connecting rod, first bolt, mounting seat, filter screen, housing, cover and screw can effectively solve the problem that the traditional three-way ball valve does not have a filtering function. However, after long-term use, the three-way ball valve still needs to disassemble the filter screen for cleaning, and the cleaning method is time-consuming and labor-intensive, and inefficient. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiency of the prior art that the filter screen is inconvenient to clean, and to provide a filtering three-way ball valve, which can quickly clean the filter screen of the three-way ball valve.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A filtering three-way ball valve is provided, comprising a three-way valve body, a three-way valve core and a rotating handle, wherein the three-way valve core is rotatably connected to the three-way valve body, and the rotating handle is arranged on the three-way valve core and rotatably connected to the three-way valve body; further comprising a spiral impeller, a first filter screen and a second filter screen, wherein the spiral impeller is rotatably connected to the three-way valve body, and the first filter screen and the second filter screen are both arranged on the three-way valve core and are respectively located at the two water-passing ends of the three-way valve core.

[0007] The utility model relates to a filtering three-way ball valve, in which one end of the three-way valve body on which a spiral impeller is installed is connected to the water inlet pipe, and the remaining two water-passing ends of the three-way valve body are connected to the water outlet pipe. The three-way valve core is rotated by rotating the handle to rotate the three-way valve core to a desired state. When the inlet water flows into the three-way valve body through the water inlet pipe, the spiral impeller is impacted by the water flow and rotates, converting the water flow into kinetic energy. At the same time, the water flow rotates due to the guidance of the blades of the spiral structure, driving the impurities therein forward together, and is effectively filtered out when passing through the first filter screen or the second filter screen, preventing impurities from entering the pipeline system and protecting the normal operation of the pipeline and subsequent equipment. At the same time, since the water flow drives the impurities to rotate, the impurities can be evenly distributed on the first filter screen or the second filter screen, thereby improving the filtration efficiency and preventing the accumulation of impurities. When it is necessary to clean the first filter screen or the second filter screen, rotate the first filter screen or the second filter screen to the spiral impeller, remove the water pipes at the two water outlet ends of the three-way valve body, and the inlet water flows into the three-way valve body through the spiral impeller. The spiral impeller can enhance the flushing force of the water flow, impact the first filter screen or the second filter screen, and flush out the impurities in the first filter screen or the second filter screen and the three-way valve core through the rotating water flow and then discharge them through the water outlet end where the filter screen is not installed, thereby cleaning the first filter screen or the second filter screen and the three-way valve core, effectively helping to remove the blockage of debris on the first filter screen or the second filter screen, and being able to quickly clean the filter screen of the three-way ball valve.

[0008] Furthermore, the rotating handle includes a valve stem, a handle, and a limiter assembly for limiting the rotational position of the valve stem. One end of the valve stem is mounted on the three-way valve core and is rotationally connected to the three-way valve body. The other end of the valve stem extends beyond the outer surface of the three-way valve body. The limiter assembly and handle are both mounted on the other end of the valve stem. The handle and valve stem enable flexible rotation of the three-way valve core; the limiter assembly enables precise positioning of the three-way valve core, improving water delivery efficiency while preventing water leakage.

[0009] Furthermore, the limiting assembly includes a limiting seat, a limiting marble, and a limiting elastic member. The limiting seat is provided on the three-way valve body, and a plurality of limiting grooves are evenly distributed on the inner circumference of the limiting seat. The valve stem is provided with a limiting hole. The limiting marble is slidably connected to the valve stem and is located in the limiting hole. The ends of the limiting elastic member are respectively connected to the valve stem and the limiting marble. During rotation, the limiting marble slides into the limiting hole by compressing the limiting elastic member, allowing the valve stem to drive the three-way valve core to rotate within the three-way valve body; when rotating to the limiting groove, the limiting elastic member drives the limiting marble to insert into the limiting groove, thereby achieving precise positioning of the three-way valve core.

[0010] Furthermore, the valve also includes a sliding block and a stopper for limiting the movement of the sliding block. The stopper is mounted on the stopper seat, and the sliding block is mounted on the handle, with the sliding block and the stopper seat being slidably connected. By providing the stopper to limit the movement angle of the sliding block, the three-way valve core is prevented from excessive rotation in one direction, thereby enhancing the overall stability and durability of the three-way ball valve.

[0011] Furthermore, the three-way valve body includes a valve seat, a water inlet head, a first water outlet head, and a second water outlet head. The valve seat has a water inlet, a first water outlet, and a second water outlet. The water inlet head, the first water outlet head, and the second water outlet head are all detachably connected to the valve seat. The water inlet head, the first water outlet head, and the second water outlet head are respectively located at the water inlet, the first water outlet, and the second water outlet. The spiral impeller is rotatably connected to the water inlet head. By making the first water outlet head and the second water outlet head detachable from the valve seat, when cleaning the first filter or the second filter, only the first water outlet head and the second water outlet head need to be removed to separate the outlet pipe from the ball valve, making it easier to clean the first filter or the second filter. At the same time, the first water outlet head and the second water outlet head of different sizes can be replaced, allowing the ball valve to match water pipes of different diameters, thereby increasing the applicability of the ball valve and enabling it to perform well in various complex and changing industrial environments to meet the different needs of users.

[0012] Furthermore, a first sealing ring is connected between the water inlet head, the first water outlet head and the second water outlet head and the valve seat. By providing the first sealing ring, a sealing and waterproof effect can be achieved between the detachable first and second water outlet heads and the valve seat.

[0013] Furthermore, the first filter screen and the second filter screen are each provided with a first fastener, and the three-way valve core is provided with a second fastener, and the first fastener and the second fastener are connected by a snap. By providing the first fastener and the second fastener, after long-term use of the ball valve, the first filter screen and the second filter screen can be exposed by removing the first and second water outlet heads, and the first and second filter screens can be easily replaced by the first and second fasteners.

[0014] Furthermore, a second sealing ring is installed and connected between the valve stem and the three-way valve body. By providing the second sealing ring, a waterproof seal is achieved between the rotating handle and the three-way valve body.

[0015] Furthermore, a sealing elastic body is installed and connected between the three-way valve body and the three-way valve core. By providing the sealing elastic body, a steering seal between the three-way valve core and the three-way valve body can be achieved.

[0016] Furthermore, three sealing elastic bodies are provided, each of which is provided on the valve seat and is located at the water inlet, the first water outlet, and the second water outlet, respectively. By providing three sealing elastic bodies, a steering seal can be formed between the three-way valve core and the three-way valve body at the water inlet, the first water outlet, and the second water outlet.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The utility model provides a three-way filtering ball valve, which, by providing a spiral impeller, allows impurities to be evenly distributed on the first filter screen or the second filter screen, thereby improving the filtering efficiency and avoiding the accumulation of impurities; at the same time, when cleaning the first filter screen or the second filter screen, the spiral impeller can enhance the flushing force of the water flow, impact the first filter screen or the second filter screen, and flush the impurities in the first filter screen or the second filter screen through the rotating water flow and then discharge them through the water outlet end where the filter screen is not installed, effectively helping to clear the blockage of debris on the first filter screen or the second filter screen, and can quickly clean the filter screen of the three-way ball valve.

[0019] 2. The utility model provides a filtering three-way ball valve, which is equipped with a limit seat, a limit ball and a limit elastic part. When it is rotated to the limit groove, the limit elastic part drives the limit ball to insert into the limit groove, thereby realizing the precise positioning of the three-way valve core, improving the water delivery efficiency and avoiding water leakage.

[0020] 3. The utility model provides a filtering three-way ball valve, in which the first water outlet head and the second water outlet head are detachably connected to the valve seat. When cleaning the first filter screen or the second filter screen, it is only necessary to disassemble the first water outlet head and the second water outlet head to separate the water outlet pipe and the ball valve, which makes it easier to clean the first filter screen or the second filter screen. At the same time, the first water outlet head and the second water outlet head of different sizes can be replaced, so that the ball valve can match water pipes of different diameters, thereby improving the applicability of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of a filtering three-way ball valve;

[0022] Figure 2 It is an exploded view of the filter three-way ball valve;

[0023] Figure 3 This is an exploded view of the rotating handle in the filter three-way ball valve;

[0024] Figure 4 It is an exploded view of the three-way valve core in the three-way filter ball valve.

[0025] In the accompanying drawings: 1. Three-way valve body; 101. Valve seat; 111. Water inlet; 112. First water outlet; 113. Second water outlet; 102. Water inlet head; 103. First water outlet head; 104. Second water outlet head; 105. First sealing ring; 2. Three-way valve core; 21. Second fastener; 201. First water-passing end; 202. Second water-passing end; 203. Third water-passing end; 204. Blocking end; 3. Rotating handle; 301. Valve stem; 311. Limiting hole; 302. Limiting assembly; 321. Limiting seat; 3211. Limiting groove; 322. Limiting marble; 323. Limiting elastic member; 303. Handle; 304. Limiting block; 305. Sliding block; 306. Second sealing ring; 4. Spiral impeller; 5. First filter screen; 51. First snap fastener; 6. Second filter screen; 7. Sealing elastomer. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0027] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] Example 1

[0029] This embodiment is a first embodiment of a filtering three-way ball valve. Figure 1 and Figure 2As shown, it includes a three-way valve body 1, a three-way valve core 2, and a rotating handle 3. The three-way valve core 2 is rotatably connected to the three-way valve body 1. The rotating handle 3 is provided on the three-way valve core 2 and is rotatably connected to the three-way valve body 1. It also includes a spiral impeller 4, a first filter screen 5, and a second filter screen 6. The spiral impeller 4 is rotatably connected to the three-way valve body 1. The spiral impeller 4 includes a rotating shaft and a plurality of spiral blades evenly distributed around the circumference of the rotating shaft. When water flows through the spiral impeller 4, the spiral blades drive the rotating shaft to rotate, generating rotational kinetic energy, thereby enhancing the flushing force of the water flow. The first filter screen 5 and the second filter screen 6 are both provided on the three-way valve core 2 and are respectively located at the two water-flowing ends of the three-way valve core 2.

[0030] The working principle of a filtering three-way ball valve in this embodiment is as follows:

[0031] Connect the end of the three-way valve body 1 equipped with the spiral impeller 4 to the water inlet pipe, and connect the remaining two water-passing ends of the three-way valve body 1 to the water outlet pipe. Rotate the handle 3 to rotate the three-way valve core 2 until the three-way valve core 2 rotates to the desired state. When the inlet water flows into the three-way valve body 1 through the water inlet pipe, the spiral impeller 4 is impacted by the water flow and rotates, converting the water flow into kinetic energy. At the same time, the water flow rotates due to the guidance of the spiral blades, driving impurities therein forward. When passing through the first filter 5 or the second filter 6, they are effectively filtered out, preventing impurities from entering the pipeline system and protecting the normal operation of the pipeline and subsequent equipment. At the same time, because the water flow drives the impurities to rotate, the impurities can be evenly distributed on the first filter 5 or the second filter 6, improving filtration efficiency and preventing impurity accumulation. The spiral structure optimizes the dynamic characteristics of the water flow and significantly improves the overall working efficiency of the ball valve, allowing the ball valve to continuously maintain high-efficiency filtering and water-passing performance, providing a strong guarantee for the stable operation of the system.

[0032] When it is necessary to clean the first filter screen 5 or the second filter screen 6, the first filter screen 5 or the second filter screen 6 is rotated to the spiral impeller 4, the water pipes at the two water outlet ends of the three-way valve body 1 are disassembled, and the incoming water flows into the three-way valve body 1 through the spiral impeller 4. The spiral impeller 4 can enhance the flushing force of the water flow, impacting the first filter screen 5 or the second filter screen 6, and flushing away the impurities in the first filter screen 5 or the second filter screen 6 and the three-way valve core 2 through the rotating water flow and then discharge them through the water outlet end where the filter screen is not installed, thereby cleaning the first filter screen 5 or the second filter screen 6 and the three-way valve core 2, effectively helping to remove the blockage of debris on the first filter screen 5 or the second filter screen 6, and being able to quickly clean the filter screen of the three-way ball valve.

[0033] Example 2

[0034] This embodiment proposes a filtering three-way ball valve, based on the first embodiment, in this embodiment, as Figure 2As shown, the rotating handle 3 includes a valve stem 301, a handle 303 and a limit assembly 302 for limiting the rotation position of the valve stem 301. One end of the valve stem 301 is provided on the three-way valve core 2 and is rotatably connected to the three-way valve body 1. The other end of the valve stem 301 extends beyond the outer surface of the three-way valve body 1. The limit assembly 302 and the handle 303 are both provided on the other end of the valve stem 301. The handle 303 is provided with a silicone sleeve. The rotation of the three-way valve core 2 is transmitted by connecting the handle 303 to the valve stem 301. By providing the handle 303 and the valve stem 301, flexible steering of the three-way valve core 2 can be achieved. Many ball valves on the market often lack precise control mechanisms, which leads to problems such as inaccurate positioning and water leakage during use. By providing the limit assembly 302, precise positioning of the three-way valve core 2 can be achieved, which improves the water delivery efficiency while avoiding water leakage.

[0035] A second sealing ring 306 is installed between the valve stem 301 and the three-way valve body 1. In this embodiment, the second sealing ring 306 is an O-ring, which is sleeved on the valve stem 301. The second sealing ring 306 is provided to achieve a waterproof seal between the valve stem 301 and the three-way valve body 1.

[0036] like Figure 2 and Figure 3 As shown, the limiting assembly 302 includes a limiting seat 321, a limiting marble 322, and a limiting elastic member 323. The limiting seat 321 is provided on the three-way valve body 1. The limiting seat 321 has a plurality of limiting grooves 3211 evenly distributed on its inner circumference. In this embodiment, there are at least four limiting grooves 3211, each corresponding to the four ends of the three-way valve core 2. The valve stem 301 is provided with a limiting hole 311. The limiting marble 322 is slidably connected to the valve stem 301 and is located in the limiting hole 311. The two ends of the limiting elastic member 323 are respectively connected to the valve stem 301 and the limiting marble 322. During rotation, the limiting marble 322 slides into the limiting hole 311 by compressing the limiting elastic member 323, allowing the valve stem 301 to drive the three-way valve core 2 to rotate in the three-way valve body 1. When rotated to the limiting groove 3211, the limiting elastic member 323 drives the limiting marble 322 to insert into the limiting groove 3211, thereby realizing the precise positioning of the three-way valve core 2 and the accurate positioning of the water flow direction, thereby improving the water supply flexibility and efficiency of the ball valve.

[0037] like Figure 3 As shown, the valve stem 301 further includes a sliding block 305 and a stopper 304 for limiting the movement of the sliding block 305. The stopper 304 is disposed on a stopper seat 321. The sliding block 305 is disposed on the handle 303, and the sliding block 305 is slidably connected to the stopper seat 321. By providing the stopper 304 to limit the movement angle of the sliding block 305, the valve stem 301 can only rotate 270 degrees, preventing the three-way valve core 2 from excessively rotating in one direction, thereby enhancing the overall stability and durability of the three-way ball valve.

[0038] Example 3

[0039] This embodiment proposes a filtering three-way ball valve, based on the first embodiment, in this embodiment, as Figure 2 As shown, the three-way valve body 1 includes a valve seat 101, a water inlet head 102, a first water outlet head 103 and a second water outlet head 104. The valve seat 101 has a water inlet 111, a first water outlet 112 and a second water outlet 113. The water inlet head 102, the first water outlet head 103 and the second water outlet head 104 are all detachably connected to the valve seat 101. In this embodiment, the first water outlet head 103 and the second water outlet head 104 are both connected to the valve seat 101 by serrated fastening screws. The water inlet head 102, the first water outlet head 103 and the second water outlet head 104 are respectively located at the water inlet 111, the first water outlet 112 and the second water outlet 113, and the spiral impeller 4 is rotatably connected to the water inlet head 102. By making the first and second water outlet heads 103, 104 removably connected to the valve seat 101, when cleaning the first filter 5 or the second filter 6, only the first and second water outlet heads 103, 104 need to be removed to separate the water outlet pipe from the ball valve, making it easier to clean the first filter 5 or the second filter 6. Furthermore, the first and second water outlet heads 103, 104 can be replaced with different sizes, allowing the ball valve to be compatible with water pipes of different diameters. This increases the ball valve's applicability and allows it to perform well in a variety of complex and changing industrial environments, meeting the diverse needs of users.

[0040] A sealing elastic body 7 is installed and connected between the three-way valve body 1 and the three-way valve core 2. Three sealing elastic bodies 7 are provided. One end of each of the three sealing elastic bodies 7 is provided on the valve seat 101 and is respectively located at the water inlet 111, the first water outlet 112, and the second water outlet 113. The other ends of the three sealing elastic bodies 7 are sealed against the three-way valve core 2. The provision of the sealing elastic bodies 7 can achieve a steering seal between the three-way valve core 2 and the three-way valve body 1.

[0041] like Figure 2 As shown, a first sealing ring 105 is connected between the water inlet head 102, the first water outlet head 103, and the second water outlet head 104 and the valve seat 101. In this embodiment, the first sealing ring 105 is an O-ring. O-rings are also provided on the water inlet head 102, the first water outlet head 103, and the second water outlet head 104. The provision of the first sealing ring 105 ensures a sealing and waterproof effect between the detachable first and second water outlet heads 103, 104 and the valve seat 101.

[0042] like Figure 4As shown, the three-way valve core 2 is evenly distributed around its circumference with a first water-passing end 201, a second water-passing end 202, a third water-passing end 203, and a blocking end 204. The first filter 5 is located at the first water-passing end 201, the second filter 6 is located at the second water-passing end 202, and the blocking end 204 is hollowed out. The third water-passing end 203 is not provided with a filter, facilitating the discharge of impurities from the third water-passing end 203 when cleaning the first filter 5 or the second filter 6. The hollowed-out blocking end 204 avoids abnormal defects during the production process, further ensuring the stability and reliability of the three-way valve core 2.

[0043] like Figure 4 As shown, the first filter screen 5 and the second filter screen 6 are both provided with a first fastener 51, and the three-way valve core 2 is provided with a second fastener 21. The first fastener 51 is connected to the second fastener 21 by a fastener, the first filter screen 5 is connected to the first water-passing end 201 by a fastener, and the second filter screen 6 is connected to the second water-passing end 202 by a fastener. The first fastener 51 is configured as a block, which is provided with a slot, and the second fastener 21 is configured as a protrusion, which can be inserted into the slot for a fastener connection. By providing the first fastener 51 and the second fastener 21, after long-term use of the ball valve, the first filter screen 5 and the second filter screen 6 can be exposed to the outside by disassembling the first water outlet head 103 and the second water outlet head 104, and the first filter screen 5 and the second filter screen 6 can be easily replaced by the first fastener 51 and the second fastener 21.

[0044] When flushing the second filter screen 6, the three-way valve core 2 is rotated so that the second water-passing end 202 is aligned with the water inlet head 102. At this time, the second filter screen 6 is aligned with the water inlet head 102, and the third water-passing end 203 is aligned with the first water outlet 112. The first water outlet head 103 is disassembled, that is, the outlet pipe is separated from the valve seat 101. Water enters from the water inlet head 102 and, under the action of the spiral impeller 4, flushes the second filter screen 6, flushing impurities adhering to the second filter screen 6 into the valve seat 101 and then out through the first water outlet 112, thus completing the flushing of the second filter screen 6. The flushing process of the first filter screen 5 can be achieved in the same way.

[0045] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A filtering three-way ball valve, comprising a three-way valve body (1), a three-way valve core (2) and a rotating handle (3), wherein the three-way valve core (2) is rotatably connected to the three-way valve body (1), and the rotating handle (3) is provided on the three-way valve core (2) and rotatably connected to the three-way valve body (1); characterized in that: It also includes a spiral impeller (4), a first filter screen (5) and a second filter screen (6), wherein the spiral impeller (4) is rotatably connected to the three-way valve body (1), and the first filter screen (5) and the second filter screen (6) are both arranged on the three-way valve core (2) and are respectively located at the two water-passing ends of the three-way valve core (2).

2. The filtering three-way ball valve according to claim 1, characterized in that: The rotating handle (3) comprises a valve stem (301), a handle (303) and a position limiting assembly (302) for limiting the rotational position of the valve stem (301); one end of the valve stem (301) is arranged on the three-way valve core (2) and is rotationally connected to the three-way valve body (1); the other end of the valve stem (301) extends beyond the outer surface of the three-way valve body (1); the position limiting assembly (302) and the handle (303) are both arranged on the other end of the valve stem (301).

3. The filtering three-way ball valve according to claim 2, characterized in that: The limiting assembly (302) comprises a limiting seat (321), a limiting marble (322) and a limiting elastic member (323); the limiting seat (321) is arranged on the three-way valve body (1); a plurality of limiting grooves (3211) are evenly distributed on the inner circumference of the limiting seat (321); a limiting hole (311) is provided on the valve stem (301); the limiting marble (322) is slidably connected to the valve stem (301) and is located in the limiting hole (311); and the two ends of the limiting elastic member (323) are respectively connected to the valve stem (301) and the limiting marble (322).

4. The filtering three-way ball valve according to claim 3, characterized in that: The invention also includes a sliding block (305) and a limiting block (304) for limiting the movement of the sliding block (305), wherein the limiting block (304) is arranged on the limiting seat (321), and the sliding block (305) is arranged on the handle (303), and the sliding block (305) is slidably connected to the limiting seat (321).

5. The filtering three-way ball valve according to claim 1, characterized in that: The three-way valve body (1) comprises a valve seat (101), a water inlet head (102), a first water outlet head (103) and a second water outlet head (104); the valve seat (101) has a water inlet (111), a first water outlet (112) and a second water outlet (113); the water inlet head (102), the first water outlet head (103) and the second water outlet head (104) are all detachably connected to the valve seat (101); the water inlet head (102), the first water outlet head (103) and the second water outlet head (104) are respectively located at the water inlet (111), the first water outlet (112) and the second water outlet (113); and the spiral impeller (4) is rotatably connected to the water inlet head (102).

6. The filtering three-way ball valve according to claim 5, characterized in that: A first sealing ring (105) is connected between the water inlet head (102), the first water outlet head (103) and the second water outlet head (104) and the valve seat (101).

7. The filtering three-way ball valve according to claim 5, characterized in that: A first fastener (51) is provided on each of the first filter screen (5) and the second filter screen (6), a second fastener (21) is provided on the three-way valve core (2), and the first fastener (51) and the second fastener (21) are fastened together.

8. The filtering three-way ball valve according to any one of claims 2 to 4, characterized in that: A second sealing ring (306) is installed and connected between the valve stem (301) and the three-way valve body (1).

9. The filtering three-way ball valve according to any one of claims 5 to 7, characterized in that: A sealing elastic body (7) is installed and connected between the three-way valve body (1) and the three-way valve core (2).

10. The filtering three-way ball valve according to claim 9, characterized in that: Three sealing elastic bodies (7) are provided, and the three sealing elastic bodies (7) are all provided on the valve seat (101). The three sealing elastic bodies (7) are respectively located at the water inlet (111), the first water outlet (112), and the second water outlet (113).

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