CN218130444U

CN218130444U - Filtering ball valve

Info

Publication number: CN218130444U
Application number: CN202222720284.4U
Authority: CN
Inventors: 池海
Original assignee: Yongjia Ristar Valve Co ltd
Current assignee: Yongjia Ristar Valve Co ltd
Priority date: 2022-10-14
Filing date: 2022-10-14
Publication date: 2022-12-27
Anticipated expiration: 2032-10-14

Abstract

The utility model belongs to the technical field of the ball valve, especially, relate to a filter ball valve, include: the two ends of the valve body are respectively provided with an inlet pipe and an outlet pipe; the valve rod comprises a rotating rod and a fixed rod; the valve core is hemispheroidal and arranged in the valve body; the valve seat is arranged in the outlet pipe and is contacted with the valve core; the bottom cover is arranged at the bottom of the valve body; the filtering device comprises a shell, a base, a first filtering chamber and a second filtering chamber, and is arranged in the outlet pipe; the rotating rod is fixedly connected above the valve core, one end of the fixing rod is connected with the valve core, the other end of the fixing rod is connected with the bottom cover, the shell is attached to the inner wall of the outlet pipe, the base is fixedly connected with the outlet pipe, and the first filter chamber and the second filter chamber are sequentially arranged in the shell along the flowing direction of fluid; the utility model discloses a beneficial effect does: be equipped with stable in structure in the ball valve and contain the filter equipment of two filter chambers, can carry out dual filtration to the fluid in the valve body, the reinforcing is to the purifying effect of fluid, improves the practicality of ball valve.

Description

Filtering ball valve

Technical Field

The utility model belongs to the technical field of the ball valve, especially, relate to a filter ball valve.

Background

The ball valve, the case is the spheroid and is driven by the valve rod, and the valve of making rotary motion around the ball valve axis can be used to fluidic regulation and control, and the ball valve also extensively is applicable to the operating mode that the requirements such as oil, chemical industry, urban drainage, urban water supply strictly cut off.

In prior art, the filter equipment in most ball valves is a filter screen, and filtration is too simple, single, and the filter effect is not good and after long-time use, and the filtration fragile of ball valve produces the influence to the filterability of ball valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem who exists to the aforesaid, provide a filter ball valve, reached multiple filtration and stable in structure effect.

In view of this, the utility model provides a filter ball valve, a serial communication port, include:

the valve comprises a valve body, wherein an inlet pipe and an outlet pipe are respectively arranged at two ends of the valve body;

the valve rod comprises a rotating rod and a fixing rod;

the valve core is hemispheroidal and is arranged in the valve body;

the valve seat is arranged in the outlet pipe and is contacted with the valve core;

the bottom cover is arranged at the bottom of the valve body;

the filtering device comprises a shell, a base, a first filtering chamber and a second filtering chamber, and the filtering device is integrally arranged in the outlet pipe;

the rotating rod is fixedly connected above the valve core, one end of the fixing rod is connected below the valve core, the other end of the fixing rod is connected to the bottom cover, the outer shell of the filtering device is attached to the inner wall of the outlet pipe, the outer shell is fixedly connected with the base, the base is fixedly connected with the outlet pipe, and the first filtering chamber and the second filtering chamber are sequentially arranged in the outer shell along the flowing direction of fluid.

In the technical scheme, the valve core is designed into a hemisphere, so that the weight of the valve core is reduced, and the manufacturing cost is reduced; the valve rod is divided into a rotating rod and a fixed rod, the rotating rod is fixedly connected above the valve core, and the rotating rod can drive the valve core to rotate together when rotating, so that the opening and closing effect of the valve is realized; one end of the fixed rod is rotatably connected below the valve core, the other end of the fixed rod is fixedly connected to the bottom cover, and the bottom cover can be fixedly connected to the bottom of the valve body through a bolt, so that the fixed rod is fixedly installed on the valve body and connected below the valve core, the valve core can be prevented from longitudinally shifting, and the stability of the valve core in the valve body is guaranteed.

The filter device is integrally arranged in the outlet pipe, the shell is attached to the inner wall of the outlet pipe, the shell is provided with a thread structure, the base is provided with a thread structure matched with the shell, the shell and the base are stably and fixedly connected through the thread structure, the base is fixedly connected with the outlet pipe, and a sealing gasket is arranged at the joint of the base and the outlet pipe, so that fluid is prevented from leaking out from a gap between the filter device and the inner wall of the outlet pipe; filter equipment is equipped with first filter chamber and second filter chamber, has dual filterable effect, utilizes first filter chamber to filter the great particulate matter of diameter and impurity earlier, recycles the second filter chamber and filters comparatively tiny particulate matter and impurity, has played good purifying effect through dual filterable function fluidfluid.

In the above technical solution, further, the first filter chamber comprises:

the outer wall of the first shell is attached to the inner wall of the shell, and a first inflow end and a first outflow end are respectively arranged at two ends of the first shell;

one end of the first filter screen is arranged on the first outflow end, and a first water inlet cavity is formed between the first filter screen and the first shell in the radial direction;

and the first filter screen seat is arranged at the other end of the first filter screen.

In the technical scheme, the ball valve opens the valve, fluid flows into the valve core from the inlet pipe, enters the first filter chamber, enters the first water inlet chamber in the first filter chamber, then passes through the first filter screen, and finally flows out from the first outflow end, and the first water inlet chamber is combined with the first filter screen, so that the filter area is increased, and the filter effect is improved; the first filter screen adopts a PP cotton filter element, has the characteristics of large flow, corrosion resistance and high pressure resistance, is integrally barrel-shaped, can filter and remove visible objects such as silt, suspended matters, rust and the like in water, has the effect of filtering the visible objects such as the silt, the suspended matters, the rust and the like by utilizing the first filter chamber, and effectively improves the practicability of the ball valve.

In the above technical solution, it is further characterized in that the second filter chamber comprises:

the outer wall of the second shell is attached to the inner wall of the shell, and a second inflow end and a second outflow end are respectively arranged at two ends of the second shell;

one end of the second filter screen is arranged on the second outflow end, and a second water inlet chamber is formed between the second filter screen and the second shell in the radial direction;

the second filter screen seat is arranged at the other end of the second filter screen;

wherein, the second inflow end is communicated with the first outflow end, and the second outflow end is communicated with the outlet pipe.

In the technical scheme, the structure of the second filter chamber is similar to that of the first filter chamber, after the ball valve is opened, fluid flows out from the first outflow end through the filtration of the first filter chamber, then enters the second filter chamber from the second inflow end, enters the second water inlet chamber in the second filter chamber, then passes through the second filter screen, and finally flows out from the second outflow end, and the second water inlet chamber and the second filter screen are combined to play a role in double filtration, so that the filtration performance of the ball valve is improved; the second filter screen adopts ceramic filter core, has antibiotic anticorrosive effect, can effectively detach bacterium, fine particle impurity, virus etc. in the aquatic, plays further filtration purifying effect to the fluidfluid, has strengthened the filtering quality of ball valve effectively, has improved the practicality of ball valve.

In the above technical solution, the liquid container is further characterized in that an external thread structure is arranged on an outer wall of the first outflow end, an internal thread structure matched with the first outflow end is arranged on an inner wall of the second inflow end, and the first outflow end and the second inflow end are fixedly connected through the thread structure.

Furthermore, the base is provided with a threaded hole, the outer wall of the second outflow end is provided with an external thread structure matched with the threaded hole, and the second outflow end is fixedly connected with the base through the threaded structure.

In the technical scheme, an external thread structure is arranged on the outer wall of the first outflow end, and an internal thread structure matched with the first outflow end is arranged on the inner wall of the second inflow end, so that the first outflow end and the second inflow end can be fixed through threaded connection, and the first filtering chamber and the second filtering chamber are fixedly connected with each other; the outer wall of the second outflow end is provided with an external thread structure matched with the thread hole, the thread hole on the base is matched with the thread structure on the outer wall of the second outflow end, so that the second outflow end and the base can be fixed through threaded connection, the second filtering chamber and the base are fixedly connected, a plurality of connected thread structures are utilized, the whole structure of the filtering device is stable, the filtering device is installed in the ball valve, the ball valve has double filtering effects, and the practicability of the ball valve is improved.

In the above technical solution, it is further characterized in that a buckle is provided on the base, a groove structure is provided on the inner wall of the outlet pipe, and the buckle includes a bending portion, an extrusion portion and a protrusion;

wherein, the flexion is "U" type and locates on the base outer wall, and the extrusion portion is "L" type and is connected with the flexion, and the arch is located on the flexion.

In the technical scheme, four buckles are welded and fixed on a base of the filtering device, the four buckles are arranged on the base in an equidistant annular mode, when the filtering device is installed in an outlet pipe, a U-shaped bent part is extruded to generate elastic force to enable the outer wall of the bent part to be attached to the inner wall of the outlet pipe, and a protrusion on the bent part is placed in a groove in the inner wall of the outlet pipe to realize clamping of the buckles on the inner wall of the outlet pipe; when pressure is applied to the extrusion part, the bending part is further compressed by the L-shaped structure, so that the protrusion exits from the groove in the inner wall of the outlet pipe, the whole filtering device can be taken out of the outlet pipe due to the clamping failure, the filtering device can be conveniently mounted and dismounted on the ball valve by the aid of the structural design of the buckle, and the use convenience of the ball valve is effectively improved.

The utility model has the advantages that:

1. be equipped with the filter equipment who contains two filter chambers in the ball valve, can carry out double filtration to the fluid of flowing through the valve body, the purification effect of reinforcing to the fluid improves the practicality of ball valve.

2. A plurality of thread structures are designed to enable all parts of the filtering device to be fixedly connected with each other, so that the stability of the filtering device structure is improved, the filtering device is not easy to damage in the ball valve, the filtering performance is guaranteed, and the practicability of the ball valve is improved.

3. Be equipped with the joint structure on filter equipment for filter equipment is convenient for install in the ball valve, also conveniently dismantles from the ball valve, has improved the convenience that the ball valve used.

Drawings

FIG. 1 is a schematic view of the overall structure of the ball valve of the present invention;

FIG. 2 is a schematic view of the structure of the filtering device of the present invention;

FIG. 3 is an enlarged schematic view of the present invention at FIG. 1A;

the labels in the figures are:

1. a valve body; 11. an inlet pipe; 12. an outlet pipe; 2. a valve stem; 21. rotating the rod; 22. fixing the rod; 3. a valve core; 4. a valve seat; 5. a bottom cover; 6. a filtration device; 61. a housing; 62. a base; 7. a first filter chamber; 71. a first housing; 72. a first inflow end; 73. a first outflow end; 74. a first filter screen; 75. a first screen holder; 8. a second filtering chamber; 81. a second housing; 82. a second inflow end; 83. a second outflow end; 84. a second filter screen; 85. a second screen holder; 9. buckling; 91. a bending section; 92. a pressing section; 93. a protrusion; 94. and (6) a groove.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

In the description of the present application, it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It should be noted that in the description of the present application, the directions or positional relationships indicated by the terms such as "front, back, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are usually based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, and in the case of not making a contrary explanation, these directions do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore, should not be interpreted as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Example 1:

the embodiment provides a filtering ball valve, include:

the valve comprises a valve body 1, wherein an inlet pipe 11 and an outlet pipe 12 are respectively arranged at two ends of the valve body 1;

a valve stem 2, the valve stem 2 comprising a rotating rod 21 and a fixing rod 22;

the valve core 3 is a hemisphere and is arranged in the valve body 1;

a valve seat 4, wherein the valve seat 4 is arranged in the outlet pipe 12 and is contacted with the valve core 3;

the bottom cover 5 is arranged at the bottom of the valve body 1;

a filter device 6, said filter device 6 comprising a housing 61, a base 62, a first filter chamber 7 and a second filter chamber 8, the filter device 6 being integrally disposed within the outlet duct 12;

wherein, dwang 21 fixed connection is in the top of case 3, and the one end of dead lever 22 is connected in the below of case 3, and the other end of dead lever 22 is connected in bottom 5, and filter equipment 6's shell 61 and outlet pipe 12 inner wall laminating, and shell 61 and base 62 fixed connection, base 62 and outlet pipe 12 fixed connection, first filter chamber 7 and second filter chamber 8 set gradually in shell 61 along the direction of fluidic flow through.

In the technical scheme, the valve core 3 is designed into a hemisphere, so that the weight of the valve core 3 is reduced, and the manufacturing cost is reduced; the valve rod 2 is divided into a rotating rod 21 and a fixed rod 22, the rotating rod 21 is fixedly connected above the valve core 3, and the rotating rod 21 can drive the valve core 3 to rotate together when rotating, so that the opening and closing effect of the valve is realized; one end of the fixing rod 22 is rotatably connected below the valve core 3, the other end of the fixing rod is fixedly connected to the bottom cover 5, and the bottom cover 5 can be fixedly connected to the bottom of the valve body 1 through a bolt, so that the fixing rod 22 is fixedly installed on the valve body 1 and connected below the valve core 3, the longitudinal position deviation of the valve core 3 can be prevented, and the stability of the valve core 3 in the valve body 1 is ensured.

The filtering device 6 is integrally arranged in the outlet pipe 12, the shell 61 is attached to the inner wall of the outlet pipe 12, the shell 61 is provided with a thread structure, the base 62 is provided with a thread structure matched with the shell 61, the shell 61 and the base 62 are stably and fixedly connected through the thread structure, the base 62 is fixedly connected with the outlet pipe 12, and a sealing gasket is arranged at the joint of the base 62 and the outlet pipe 12 to ensure that fluid cannot leak out from a gap between the filtering device 6 and the inner wall of the outlet pipe 12; filter equipment 6 is equipped with first filter chamber 7 and second filter chamber 8, has dual filtration's effect, utilizes first filter chamber 7 to filter the great particulate matter of diameter and impurity earlier, recycles second filter chamber 8 and filters comparatively tiny particulate matter and impurity, has played good purifying effect through dual filterable function adversary.

Example 2:

the embodiment provides a filtering ball valve, which comprises the technical scheme of the embodiment and also has the following technical characteristics.

Further, the first filtering chamber 7 comprises:

the outer wall of the first shell 71 is attached to the inner wall of the shell 61, and a first inflow end 72 and a first outflow end 73 are respectively arranged at two ends of the first shell 71;

a first screen 74, one end of the first screen 74 being mounted on the first outflow end 73, and a first water inlet chamber being formed between the first screen 74 and the first housing 71 in a radial direction;

and a first screen holder 75 attached to the other end of the first screen 74.

In the technical scheme, the ball valve opens the fluid to flow into the valve core 3 from the inlet pipe 11 and enter the first filter chamber 7, the first filter seat 75 is arranged in the first filter chamber 7, the first filter seat 75 can block the fluid, so that the fluid flows towards the peripheral side of the first filter seat 75 and enters the first water inlet chamber, then passes through the first filter screen 74 with the cylindrical structure from the first water inlet chamber and finally flows out from the first outflow end 73, the structural design of the first water inlet chamber is matched with the first filter screen 74 with the cylindrical structure to increase the filter area, and the filter effect of the first filter chamber 7 is effectively improved; one end of the first filter screen 74 is fixedly adhered to the first filter screen seat 75, the other end of the first filter screen 74 is fixedly adhered to the first shell 71, the first filter screen 74 adopts a PP cotton filter element, the first filter screen has the characteristics of large flow, corrosion resistance and high pressure resistance, can filter and remove mud, suspended matters, iron rust and other visible matters in water, and utilizes the first filter chamber 7 to enable the ball valve to have the effect of filtering mud, suspended matters, iron rust and other visible matters, so that the practicability of the ball valve is effectively improved.

Example 3:

Further, the second filtering chamber 8 comprises:

the outer wall of the second shell 81 is attached to the inner wall of the shell 61, and a second inflow end 82 and a second outflow end 83 are respectively arranged at two ends of the second shell;

a second screen 84, one end of the second screen 84 is mounted on the second outflow end 83, and a second water inlet chamber is formed between the second screen 84 and the second housing 81 in the radial direction;

a second screen seat 85, the second screen seat 85 being installed on the other end of the second screen 84;

wherein the second inflow end 82 is communicated with the first outflow end 73, and the second outflow end 83 is communicated with the outlet pipe 12.

In the technical scheme, the structure of the second filtering chamber 8 is similar to that of the first filtering chamber 7, after the ball valve is opened, fluid flows out from the first outflow end 73 through the filtering of the first filtering chamber 7, then enters the second filtering chamber 8 from the second inflow end 82, enters the second water inlet chamber, then passes through the second filtering net 84, and finally flows out from the second outflow end 83, the double filtering effect is achieved through the structural design of the second water inlet chamber and the second filtering net 84, and the filtering effect of the filtering device 6 is effectively improved; one end of the second filter screen 84 is pasted and fixed on the second filter screen seat 85, the other end is pasted and fixed on the second shell 81, the second filter screen 84 adopts a ceramic filter element, has an antibacterial and anticorrosive effect, can effectively remove bacteria, fine particle impurities, viruses and the like in water, has a further filtering and purifying effect on fluid, effectively enhances the filtering performance of the ball valve, and improves the practicability of the ball valve.

Example 4:

Furthermore, an external thread structure is arranged on the outer wall of the first outflow end 73, an internal thread structure matched with the first outflow end 82 is arranged on the inner wall of the second inflow end 82, and the first outflow end 73 and the second inflow end 82 are fixedly connected through the thread structure.

Further, a threaded hole is formed in the base 62, an external thread structure matched with the threaded hole is formed in the outer wall of the second outflow end 83, and the second outflow end 83 and the base 62 are fixedly connected through the threaded structure.

In the present technical solution, an external thread structure is provided on an outer wall of the first outflow end 73, and an internal thread structure adapted to the first outflow end 82 is provided on an inner wall of the second inflow end 82, so that the first outflow end 73 and the second inflow end 82 can be fixed by threaded connection, thereby fixedly connecting the first filtering chamber 7 and the second filtering chamber 8 to each other; be equipped with the external screw thread structure with screw hole looks adaptation on the outer wall of second outflow end 83, screw hole on the base 62 and the screw thread structure looks adaptation on the outer wall of second outflow end 83 for second outflow end 83 can fix through threaded connection with base 62, thereby realize fixed connection with second filter chamber 8 and base 62, utilize a plurality of helicitic texture that are connected, make filter equipment 6 overall structure stable, this filter equipment 6 installs in the ball valve, make the ball valve possess dual filterable efficiency, improve the practicality of ball valve.

Example 5:

Further, a buckle 9 is arranged on the base 62, a groove 94 structure is arranged on the inner wall of the outlet pipe 12, and the buckle 9 comprises a bending part 91, a squeezing part 92 and a protrusion 93;

wherein, the bending part 91 is U-shaped and is arranged on the outer wall of the base 62, the extrusion part 92 is L-shaped and is connected with the bending part 91, and the bulge 93 is arranged on the bending part 91.

In the technical scheme, four metal elastic buckles 9 are welded and fixed on a base 62 of a filter device 6, each buckle 9 comprises a bending portion 91 and an extrusion portion 92, the bending portion 91 is of a U-shaped structure, the extrusion portion 92 is of an L-shaped structure, a part of structures of the bending portion 91 and the extrusion portion 92 are overlapped with each other, the overall shape of the buckle is similar to a spoon-shaped structure, protrusions 93 are arranged on the overlapped portion of the bending portion 91 and the extrusion portion 92, the four buckles 9 are arranged on the base in an equidistant annular mode, when the filter device 6 is installed in an outlet pipe 12, the U-shaped bending portion 91 of each buckle 9 is extruded, elastic force is generated to enable the outer wall of the bending portion 91 to be attached to the inner wall of the outlet pipe 12, the protrusions 93 on the bending portion 91 are placed in grooves 94 on the inner wall of the outlet pipe 12, and the buckles 9 are clamped on the inner wall of the outlet pipe 12; then when exerting pressure to extrusion portion 92, utilize "L" type structure with further compression of flexion 91, make protruding 93 withdraw from recess 94 of outlet pipe 12 inner wall, at this moment the joint function is invalid can take out filter equipment 6 wholly from outlet pipe 12, utilize the structural design of this buckle 9 can make things convenient for the installation of filter equipment 6 on the ball valve to dismantle, improved the convenience that the ball valve used effectively.

While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present application and the claims.

Claims

1. A filter ball valve, comprising:

the valve comprises a valve body (1), wherein an inlet pipe (11) and an outlet pipe (12) are respectively arranged at two ends of the valve body (1);

the valve rod (2), the valve rod (2) includes a rotating rod (21) and a fixed rod (22);

the valve core (3), the said valve core (3) is a hemisphere and locates in the valve block (1);

the valve seat (4), the said valve seat (4) is set up in the outlet pipe (12) and contacted with valve core (3);

the bottom cover (5), the said bottom cover (5) locates at the bottom of the valve block (1);

the filter device (6), the filter device (6) includes a housing (61), a base (62), a first filter chamber (7) and a second filter chamber (8), the filter device (6) is integrally arranged in the outlet pipe (12);

wherein, dwang (21) fixed connection is in the top of case (3), the one end of dead lever (22) is connected in the below of case (3), the other end of dead lever (22) is connected in bottom (5), the laminating of shell (61) and outlet pipe (12) inner wall of filter equipment (6), and the one end and base (62) fixed connection of shell (61), base (62) and outlet pipe (12) fixed connection, first filter chamber (7) and second filter chamber (8) set gradually in shell (61) along the direction of flowing through of fluid.

2. A filtering ball valve according to claim 1, characterized in that said first filtering chamber (7) comprises:

the outer wall of the first shell (71) is attached to the inner wall of the shell (61), and a first inflow end (72) and a first outflow end (73) are respectively arranged at two ends of the first shell (71);

a first filter screen (74), one end of the first filter screen (74) is arranged on the first outflow end (73), and a first water inlet chamber is formed between the first filter screen (74) and the first shell (71) in the radial direction;

and a first screen holder (75) attached to the other end of the first screen (74).

3. A filtering ball valve according to claim 2, characterized in that said second filtering chamber (8) comprises:

the outer wall of the second shell (81) is attached to the inner wall of the shell (61), and a second inflow end (82) and a second outflow end (83) are respectively arranged at two ends of the second shell;

a second screen (84), one end of the second screen (84) is arranged on the second outflow end (83), and a second water inlet chamber is formed between the second screen (84) and the second shell (81) in the radial direction;

a second screen holder (85), the second screen holder (85) being mounted on the other end of the second screen (84);

wherein the second inflow end (82) is communicated with the first outflow end (73), and the second outflow end (83) is communicated with the outlet pipe (12).

4. A filtering ball valve according to claim 3, characterized in that the outer wall of the first outflow end (73) is provided with an external thread structure, the inner wall of the second inflow end (82) is provided with a matching internal thread structure, and the first outflow end (73) and the second inflow end (82) are connected through a thread structure.

5. A filtering ball valve according to claim 4, characterized in that the base (62) is provided with a threaded hole, the outer wall of the second outflow end (83) is provided with an external thread structure matched with the threaded hole, and the second outflow end (83) is connected with the base (62) through the thread structure.

6. A filtering ball valve according to claim 1, characterized in that the base (62) is provided with a buckle (9), the inner wall of the outlet pipe (12) is provided with a groove (94) structure, and the buckle (9) comprises a bending part (91), a pressing part (92) and a protrusion (93);

wherein, the bending part (91) is U-shaped and arranged on the outer wall of the base (62), the extrusion part (92) is L-shaped and connected with the bending part (91), and the bulge (93) is arranged on the bending part (91).