Filtering angle valve

Abstract

The utility model relates to the technical field of bathroom equipment, in particular to a filtering angle valve which comprises an angle valve shell, a ceramic valve element assembly arranged in the angle valve shell, a control handle used for controlling the ceramic valve element assembly to act and a filtering assembly installed in the angle valve shell. The control handle is provided with a control valve rod matched with the ceramic valve element assembly, and the angle valve shell is provided with a sliding groove for the control valve rod to rotate. The angle valve shell comprises a main pipeline and a water outlet connector connected to the main pipeline. The main pipeline is provided with a water inlet cavity located on the water inlet side of the ceramic valve element assembly and a water outlet cavity located on the water outlet side of the ceramic valve element assembly. The filtering assembly is located in the water outlet cavity, and the end of the main pipeline is provided with a mounting opening used for taking and placing the filtering assembly and further provided with a sealing end cover used for sealing and covering the mounting opening. The angle valve has the effect that the problem that the angle valve filter screen is complex to replace is solved.

Description

Technical Field

[0001] The present application relates to the technical field of bathroom equipment, and in particular to a filter angle valve. Background Art

[0002] An angle valve is an angle stop valve, also known as an angle valve, angle valve or angled water valve. Its structural characteristics are modified from the ball valve. The inlet and outlet joints of the angle valve are at a 90° angle, allowing the pipeline to form a 90° bend at the angle valve.

[0003] In related art, a filtered angle valve has an inlet connector at one end of its housing, with an outlet connector positioned perpendicular to the housing. A valve core is located within the housing, and a switch is located on the outside of the housing, away from the inlet connector, to control the opening and closing of the valve core. A filter is typically installed within the outlet pipe to filter impurities from the tap water before it leaves the pipe.

[0004] According to the above-mentioned related technologies, when replacing the filter screen of the filter angle valve, the entire angle valve needs to be removed from the pipeline, and after replacing the filter screen in the outlet pipe, it needs to be reconnected to the pipeline. The overall operation process is relatively cumbersome. Utility Model Content

[0005] In order to improve the problem of cumbersome replacement of the angle valve filter, the present application provides a filtering angle valve.

[0006] The angle valve provided in this application adopts the following technical solution:

[0007] A filter angle valve comprises an angle valve housing, a ceramic valve core assembly disposed within the angle valve housing, a control handle for controlling the movement of the ceramic valve core assembly, and a filter assembly mounted within the angle valve housing; the control handle has a control valve stem that cooperates with the ceramic valve core assembly, and the angle valve housing has a sliding groove for allowing the control valve stem to rotate;

[0008] The angle valve housing includes a main pipe and a water outlet joint connected to the main pipe; the main pipe has a water inlet chamber located on the water inlet side of the ceramic valve core assembly and a water outlet chamber located on the water outlet side of the ceramic valve core assembly; the filter assembly is located in the water outlet chamber, and the end of the main pipe has an installation port for taking and placing the filter assembly and is also provided with a sealing end cover for sealing the installation port.

[0009] By adopting the above technical solution, a filter assembly is installed in the water outlet chamber of the angle valve housing. By providing an installation port for removing and placing the filter assembly and a sealing end cap at the end of the main pipeline, users can easily replace the filter without removing the entire angle valve from the pipeline, simplifying the filter replacement process and improving maintenance efficiency. Since the angle valve does not need to be disconnected from the pipeline when replacing the filter, the risk of loosening or damage to the pipeline interface caused by frequent disassembly and assembly is avoided, helping to maintain the integrity and stability of the pipeline.

[0010] Furthermore, the filter assembly includes a filter core and a connecting seat installed in the angle valve housing and for connecting the filter core. One side of the connecting seat is provided with a first annular groove that cooperates with the filter core, and the connecting seat is provided with a second annular groove on the side away from the filter core for cooperating with the ceramic valve core assembly.

[0011] By adopting this technical solution, the filter assembly consists of a filter element and a connector. This modular design simplifies filter replacement. Simply open the sealing end cap to remove the entire filter assembly, then replace the filter element individually, eliminating the need to replace the entire filter assembly, reducing maintenance costs. The first annular groove on the connector is designed to mate with the filter element, ensuring its stable installation and preventing it from loosening or falling out under the impact of water flow. The second annular groove mates with the ceramic valve core assembly, ensuring a smooth and sealed water outlet path.

[0012] Furthermore, the ceramic valve core assembly includes a first valve disc, a second valve disc and a third valve disc that are coaxially arranged and adjacent to each other. The first valve disc and the third valve disc are symmetrically abutted on both sides of the second valve disc. The first valve disc, the second valve disc and the third valve disc are all provided with flow holes for water to pass through. The first valve disc and the third valve disc are clamped and fixed in the angle valve housing. The outer wall of the second valve disc is provided with a valve stem slot for inserting and fixing the control valve stem. The valve stem slot corresponds to the inside and outside of the sliding groove and is connected to each other.

[0013] By adopting the above technical solution, the first, second, and third valve discs are coaxial and arranged adjacent to each other, with the first and third valve discs symmetrically abutting against either side of the second valve disc. A valve stem slot is provided on the outer wall of the second valve disc for the control valve stem to be inserted and fixed. The valve stem slot corresponds to the inside and outside of the sliding groove and is interconnected, ensuring that the control valve stem can rotate smoothly within the sliding groove, thereby driving the second valve disc to rotate and realize the opening and closing of the valve core assembly. When the flow hole of the second valve disc is aligned with the flow holes of the first and third valve discs, the valve core assembly is in the open state, allowing water to flow smoothly through; when the flow hole of the second valve disc is misaligned with the flow holes of the first and third valve discs, the valve core assembly is in the closed state. At this time, the first and third valve discs are tightly fitted with the second valve disc, effectively preventing water from flowing through.

[0014] Furthermore, the angle valve housing is fixedly connected to an inner wall with an annular mounting seat for mounting the ceramic valve core assembly, and the annular mounting seat is provided with an insertion ring groove for inserting the first valve disc on a side away from the water inlet joint;

[0015] The outer walls of the first valve disc and the third valve disc are both provided with limiting protrusions, and the inner wall of the angle valve housing is respectively provided with limiting grooves for corresponding insertion of the limiting protrusions at the positions of the first valve disc and the third valve disc.

[0016] By adopting the above technical solution, the annular mounting seat on the inner wall of the angle valve housing provides a stable and reliable mounting platform for the ceramic valve core assembly, ensuring that the ceramic valve core assembly maintains coaxiality during installation, thereby improving the sealing and stability of the valve core assembly. An insertion ring groove for the first valve disc is provided on the annular mounting seat, so that the first valve disc can be firmly installed on the annular mounting seat and form a tight fit with the second valve disc and the third valve disc. Limiting protrusions are provided on the outer walls of the first valve disc and the third valve disc, and corresponding limiting grooves are provided on the inner wall of the angle valve housing. Through the cooperation of the limiting protrusions and the limiting grooves, a limiting effect is exerted on the first valve disc and the third valve disc, preventing the second valve disc from rotating and causing a chain effect on the first valve disc and the third valve disc due to friction, which helps to maintain a tight fit between the valve discs and improve the stability and reliability of the valve core assembly.

[0017] Furthermore, the control handle is arranged around the outside of the angle valve housing, the angle valve housing is provided with a limiting step on the outer peripheral wall thereof for contacting with the control handle, and the sliding groove is provided at a position adjacent to the limiting step of the angle valve housing;

[0018] The control handle comprises two symmetrically arranged half rings that are snap-fitted to each other and a handle body sleeved on the outside of the two half rings, and an elastic snap-fit ​​structure is provided between the handle body and the half rings;

[0019] The number of the control valve rods is two and they are connected to the inner walls of the two half rings in a one-to-one correspondence. The control valve rod passes through the sliding groove and is inserted into the valve rod slot.

[0020] By adopting the above technical solution, the control handle is arranged on the outside of the angle valve housing and abuts against the angle valve housing through a limit step. The sliding groove opened at the adjacent position of the limit step provides the necessary space and path for the rotation of the control valve stem, ensuring that the control valve stem can rotate smoothly in the sliding groove, thereby driving the opening and closing of the valve core assembly. The control handle consists of two symmetrically arranged and mutually clamped half rings and a handle body sleeved on the outside of the two half rings, making the assembly and disassembly of the control handle easier and convenient for users to repair or replace when needed. The elastic snap structure provided between the handle body and the half ring not only enhances the overall structural strength of the control handle, but also makes it more stable when the user rotates the control handle. The two control valve stems are connected to the inner walls of the two half rings one by one and inserted into the valve stem slot through the sliding groove, so that the valve core assembly can be more balanced and stable when opening and closing, avoiding failure or damage caused by uneven force on a single control valve stem.

[0021] Furthermore, friction lines are provided on the outer wall of the handle body.

[0022] By adopting the above technical solution, the friction lines can increase the friction between the user's hand and the handle body, so that the user can hold the handle stably when rotating it, preventing misoperation or inaccurate control due to hand slippage.

[0023] Furthermore, a paddle is vertically arranged on the outer wall of the handle body.

[0024] By adopting the above technical solution, the paddle is arranged on the handle body, which makes it easy for the user to rotate and control the handle. Compared with directly rotating the handle body, the rotation method of the paddle can obtain a greater torque, making the rotation action more labor-saving.

[0025] Furthermore, the filter element is embedded with a first sealing ring on the outer peripheral wall near one end of the connecting seat. The first sealing ring is located in the first ring groove and is tightly pressed against the connecting seat. The outer side of the sealing end cover is provided with a second sealing ring for abutting against the inner wall of the angle valve housing.

[0026] By adopting the above technical solution, the first sealing ring is embedded in the outer peripheral wall of the filter element near the connecting seat and is located in the first annular groove, tightly abutting the connecting seat, effectively preventing water from leaking through the gap between the filter element and the connecting seat, thereby enhancing the sealing performance of the angle valve. The second sealing ring is mounted on the outside of the sealing end cover and abuts against the inner wall of the angle valve housing, preventing water from leaking through the gap between the sealing end cover and the angle valve housing.

[0027] Furthermore, a check valve is provided in the connecting seat and the water outlet joint.

[0028] By adopting the above technical solution, when the valve core assembly is closed in the piping system, the water flow in the pipeline may backflow due to gravity or pressure changes in the pipeline. Installing check valves in the connector and the water outlet joint can ensure that the water flows only in the predetermined direction, thus avoiding various problems caused by backflow.

[0029] Furthermore, the number of the water outlet joints is one / two.

[0030] By adopting the above technical solution, a single outlet connector simplifies the angle valve's overall structure, reduces potential leaks, and improves its sealing and reliability. When a filter angle valve needs to simultaneously meet the output requirements of two or more different water qualities or volumes, such as when a household water purifier needs to provide both drinking water and domestic water, or when industrial equipment requires water flows for different purposes such as cleaning and cooling, a dual outlet connector is more appropriate. Dual outlet connectors enable the angle valve to simultaneously meet multiple water flow requirements, improving the device's flexibility and applicability.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. By installing a detachable filter assembly in the water outlet chamber of the angle valve housing and providing a mounting port and a sealing end cap at the end of the main pipe, users can easily replace the filter without removing the entire angle valve from the pipeline, simplifying the operation process of replacing the filter. The filter assembly adopts a modular setting, including a filter element and a connecting seat. When replacing the filter, it is only necessary to remove the entire filter assembly and replace the filter element separately, without having to replace the entire assembly, thus reducing maintenance costs.

[0033] 2. Install a check valve between the connector and the outlet joint to ensure that water can only flow in the predetermined direction, thus avoiding various problems caused by backflow;

[0034] 3. The angle valve can be set to a single water outlet joint or a double water outlet joint according to needs. The single water outlet joint makes the angle valve structure simple, reduces potential leakage points, and improves sealing and reliability; the double water outlet joint enables the angle valve to meet multiple water flow requirements at the same time, improving the flexibility and applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the filter angle valve of Example 1 of the present application.

[0036] Figure 2 It is a schematic cross-sectional view of the structure of the filter angle valve of Example 1 of the present application.

[0037] Figure 3 It is a schematic diagram of the overall structure of the angle valve housing in Example 1 of the present application.

[0038] Figure 4 It is a structural explosion diagram of the internal structure of the filter angle valve in Example 1 of the present application.

[0039] Figure 5 It is a schematic diagram of the structural explosion of the ceramic valve core assembly in Example 1 of the present application.

[0040] Figure 6 It is a schematic diagram of the structural explosion of the control handle in Example 1 of the present application.

[0041] Figure 7 It is a schematic structural cross-sectional view of the angle valve housing in Example 1 of the present application.

[0042] Figure 8 It is a schematic diagram of the structural explosion of the filter assembly and the sealing end cover in Example 1 of the present application.

[0043] Figure 9 It is a schematic diagram of the structural explosion of the filter component in Example 1 of the present application.

[0044] Figure 10 It is a schematic diagram of the overall structure of the filter angle valve in Example 2 of the present application.

[0045] Figure 11 It is a schematic cross-sectional view of the structure of the filter angle valve of Example 2 of the present application.

[0046] Figure 12 This is a schematic diagram of the overall structure of the filter angle valve of Example 3 of the present application.

[0047] Figure 13 It is a schematic diagram of the structural explosion of the control handle in Example 3 of the present application.

[0048] Figure 14 This is a schematic diagram of the overall structure of the filter angle valve of Example 4 of the present application.

[0049] Explanation of the reference numerals: 1. Angle valve housing; 11. Main pipeline; 111. Water inlet chamber; 112. Water outlet chamber; 113. Limiting step; 114. Sliding groove; 115. Annular mounting seat; 1151. Inserting ring groove; 116. Limiting groove; 117. Mounting port; 118. Sealing end cap; 1181. Second sealing ring; 12. Water outlet connector; 13. Water inlet connector; 2. Ceramic valve core assembly; 21. First valve disc; 211. Flow hole; 212. Limiting protrusion; 22. Second Valve disc; 221, valve stem slot; 23, third valve disc; 3, control handle; 31, half ring; 311, control valve stem; 32, handle body; 321, friction pattern; 322, paddle; 33, elastic snap-fit ​​structure; 331, elastic protrusion; 332, locking slide; 333, locking protrusion; 4, filter assembly; 41, filter element; 411, filter chamber; 412, first sealing ring; 42, connecting seat; 421, first ring groove; 422, second ring groove; 5, check valve. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-14 And Examples 1-4 are used to further illustrate this application.

[0051] Example 1

[0052] The embodiment of the present application discloses a filter angle valve. Figure 1 and Figure 2 The filter angle valve includes an angle valve housing 1, a ceramic valve core assembly 2, a control handle 3, a filter assembly 4 and a check valve 5. Figure 3 The angle valve housing 1 includes a main pipe 11 and a water outlet joint 12 vertically connected to one side of the main pipe 11. The end of the main pipe 11 away from the water outlet joint 12 is the water inlet joint 13. The outer walls of the water inlet joint 13 and the water outlet joint 12 are both provided with external threads for connecting to the pipeline.

[0053] Reference Figure 2 and Figure 4 The ceramic valve core assembly 2 is installed inside the main pipe 11 and is located in the middle position. The end of the ceramic valve core assembly 2 close to the water inlet joint 13 is the water inlet side, and the end of the ceramic valve core assembly 2 close to the water outlet joint 12 is the water outlet side. The interior of the main pipe 11 is divided into a water inlet chamber 111 and a water outlet chamber 112 by the ceramic valve core assembly 2.

[0054] The control handle 3 is mounted on the outside of the main pipe 11 and is used to cooperate with the ceramic valve core assembly 2. The movement of the ceramic valve core assembly 2 is controlled by the control handle 3, thereby achieving connection or disconnection between the water inlet chamber 111 and the water outlet chamber 112.

[0055] In this embodiment, the number of check valves 5 is preferably two, and the two check valves 5 are respectively installed in the connecting seat 42 and the water outlet joint 12. When the ceramic valve core assembly 2 is in the closed state, the water flow in the pipeline may flow back due to gravity or pressure changes in the pipeline. Installing the check valve 5 can prevent the backflow.

[0056] Reference Figure 5 The ceramic valve core assembly 2 includes a first valve disc 21, a second valve disc 22, and a third valve disc 23 arranged adjacent to each other. The first valve disc 21 and the third valve disc 23 are symmetrically arranged. The first valve disc 21 is close to the side of the water inlet joint 13, the third valve disc 23 is close to the side of the water outlet joint 12, and the second valve disc 22 is abutted between the first valve disc 21 and the third valve disc 23. The three valve discs are coaxially arranged and each valve disc is provided with two symmetrically arranged flow holes 211. In the embodiment of the present application, the two flow holes 211 on each valve disc are arranged in the shape of two opposing fans. When the flow holes 211 on each valve disc are aligned with each other, water can flow through the first valve disc 21, the second valve disc 22, and the third valve disc 23 in sequence.

[0057] Reference Figure 6 and Figure 7 The outer circumferential wall of the main conduit 11 is provided with a limiting step 113 for abutting against the control handle 3. The control handle 3 comprises two symmetrically arranged half-rings 31 that are interlocked and fastened to each other, and a handle body 32 that is sleeved on the outside of the two half-rings 31. In this embodiment, the handle body 32 is an annular structure with friction lines 321 provided on its outer circumferential wall. An elastic snap-fit ​​structure 33 is provided between the handle body 32 and the half-rings 31 for interlocking and locking. The elastic snap-fit ​​structure 33 comprises an elastic protrusion 331 integrally connected to the outer wall of the half-ring 31, and a locking groove 332 provided on the inner wall of the handle body 32 for the elastic protrusion 331 to slide into. A locking protrusion 333 that cooperates with the elastic protrusion 331 is integrally connected to the handle body 32 within the locking groove 332.

[0058] Each half-ring 31 is vertically fixedly connected to the inner wall of the main conduit 11 with a control valve stem 311 for mating with the second valve disc 22. A sliding groove 114 is defined in the main conduit 11, adjacent to the stop step 113, and communicates with the interior of the main conduit 11 and allows the control valve stem 311 to pass through. Two valve stem slots 221 are symmetrically defined on the outer wall of the second valve disc 22, correspondingly inserting the control valve stem 311. These two valve stem slots 221 on the second valve disc 22 are staggered with the two flow holes 211. The valve stem slots 221 correspond to and communicate with the sliding grooves 114 from inside to outside.

[0059] Reference Figure 2 and Figure 7The main pipe 11 is fixedly connected to the inner wall with an annular mounting seat 115 for installing the ceramic valve core assembly 2. The annular mounting seat 115 is provided with an insert ring groove 1151 on the side away from the water inlet joint, and the first valve plate 21 is inserted into the insert ring groove 1151.

[0060] Reference Figure 5 and Figure 7 In this embodiment, two stopper protrusions 212 are integrally connected to the outer sidewalls of the first and third valve discs 21, 23, respectively. The stopper protrusions 212 on the first and third valve discs 21, 23 are symmetrically arranged. Stopper grooves 116 for the stopper protrusions 212 are defined on the inner walls of the main conduit 11, at the locations of the first and third valve discs 21, 23, respectively. Due to the properties of ceramic materials, friction exists between the second valve disc 22 and the first valve disc 21, and between the second valve disc 22 and the third valve disc 23. When the second valve disc 22 rotates due to the control valve stem 311, the stopper protrusions 212 and the stopper grooves 116 act to limit the first and third valve discs 21, 23, preventing friction from causing them to rotate, thereby maintaining a tight fit between the valve discs.

[0061] Reference Figure 8 and Figure 9 The filter assembly 4 is installed in the water outlet chamber 112 of the main pipe 11 and is arranged adjacent to the ceramic valve core assembly 2. The main pipe 11 is provided with an installation port 117 at the end away from the water inlet joint 13. The operator can take and place the filter assembly 4 through the installation port 117, thereby facilitating the replacement of the filter assembly 4. The end of the main pipe 11 is also threadedly connected with a sealing end cover 118 for sealing the installation port 117.

[0062] The filter assembly 4 includes a filter element 41 and a connecting seat 42. The connecting seat 42 is threadedly connected to the main pipe 11 and is used to install the filter element 41. One side of the connecting seat 42 is provided with a first annular groove 421 that engages with the filter element 41. The connecting seat 42 is provided with a second annular groove 422 on the side away from the filter element 41 for the third valve disc 23 to engage.

[0063] The filter element 41 has a filter chamber 411 facing the third valve disc 23. The sealing end cap 118 is threadedly connected to the end of the filter element 41 away from the connection seat 42. When the filter element 41 is replaced, the sealing end cap 118 is first connected to the filter element 41, and then the filter element 41 is inserted into the water outlet cavity. The sealing end cap 118 is then threadedly connected to the end of the main pipe 11.

[0064] Combine Figure 2In this embodiment, a first sealing ring 412 is embedded in the outer peripheral wall of the filter element 41 near one end of the connecting seat 42. The first sealing ring 412 is located in the first annular groove 421 and is tightly pressed against the connecting seat 42. A second sealing ring 1181 is sleeved on the outer surface of the sealing end cap 118 for contacting the inner wall of the main pipe 11.

[0065] The implementation principle of a filtering angle valve in an embodiment of the present application is as follows: the filtering angle valve is mainly composed of an angle valve housing 1, a ceramic valve core assembly 2, a control handle 3 and a filtering assembly 4. The angle valve housing 1 includes a main pipe 11, a water inlet joint 13 and a water outlet joint 12. The interior of the main pipe 11 is divided into a water inlet chamber 111 and a water outlet chamber 112 by the ceramic valve core assembly 2. The ceramic valve core assembly 2 is installed inside the main pipe 11, and includes a first valve plate 21, a second valve plate 22 and a third valve plate 23. The second valve plate 22 can be rotated by rotating the control handle 3, so that the flow hole 211 on the second valve plate 22 is connected or staggered with the flow holes 211 of the first valve plate 21 and the third valve plate 23, thereby controlling the connection or disconnection of the water inlet chamber 111 and the water outlet chamber 112.

[0066] By placing the ceramic valve core assembly 2 in the middle of the main pipe 11, space is reserved for the end of the main pipe 11, allowing the filter assembly 4 to be installed from the end of the main pipe 11. The main pipe 11 is then sealed with the sealing end cap 118. When the filter needs to be replaced, the sealing end cap 118 can be opened to perform the relevant operation, avoiding the need to disassemble the entire angle valve.

[0067] Example 2

[0068] Reference Figure 10 and Figure 11 The difference between this embodiment and embodiment 1 is that there are two water outlet connectors 12 in this embodiment. The two water outlet connectors 12 are symmetrically arranged and integrally connected to the two sides of the main pipeline 11. Check valves 5 are installed in both water outlet connectors 12. The remaining components are the same as those in embodiment 1.

[0069] Example 3

[0070] Reference Figure 12 and Figure 13 The difference between this embodiment and embodiment 1 is that the handle body 32 is vertically arranged on the outer wall and is integrally connected with a paddle 322. The use of the paddle 322 can provide a greater torque, making the rotation of the handle 3 more labor-saving. The remaining components are arranged the same as in embodiment 1.

[0071] Example 4

[0072] Reference Figure 14The difference between this embodiment and embodiment 2 is that the handle body 32 is vertically arranged on the outer wall and is integrally connected with the paddle 322. The arrangement of the remaining components is the same as that of embodiment 2.

[0073] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A filter angle valve, characterized by: The angle valve housing (1) comprises an angle valve housing (1), a ceramic valve core assembly (2) arranged in the angle valve housing (1), a control handle (3) for controlling the movement of the ceramic valve core assembly (2), and a filter assembly (4) installed in the angle valve housing (1); the control handle (3) has a control valve stem (311) that cooperates with the ceramic valve core assembly (2), and the angle valve housing (1) has a sliding groove (114) for allowing the control valve stem (311) to rotate; The angle valve housing (1) comprises a main pipe (11) and a water outlet joint (12) connected to the main pipe (11); the main pipe (11) has a water inlet chamber (111) located on the water inlet side of the ceramic valve core assembly (2) and a water outlet chamber (112) located on the water outlet side of the ceramic valve core assembly (2); the filter assembly (4) is located in the water outlet chamber (112); the end of the main pipe (11) has an installation opening (117) for taking in and placing the filter assembly (4), and is also provided with a sealing end cover (118) for sealing the installation opening (117).

2. The filter angle valve according to claim 1, characterized in that: The filter assembly (4) comprises a filter core (41) and a connecting seat (42) installed in the angle valve housing (1) and for connecting the filter core (41); a first annular groove (421) is provided on one side of the connecting seat (42) for cooperating with the filter core (41); and a second annular groove (422) is provided on a side of the connecting seat (42) away from the filter core (41) for cooperating with the ceramic valve core assembly (2).

3. The filter angle valve according to claim 1, characterized in that: The ceramic valve core assembly (2) comprises a first valve disc (21), a second valve disc (22) and a third valve disc (23) which are coaxially arranged and arranged adjacent to each other. The first valve disc (21) and the third valve disc (23) are symmetrically abutted on both sides of the second valve disc (22). The first valve disc (21), the second valve disc (22) and the third valve disc (23) are all provided with flow holes (211) for water to pass through. The first valve disc (21) and the third valve disc (23) are fixed in the angle valve housing (1) by snap-fitting. The outer wall of the second valve disc (22) is provided with a valve stem slot (221) for inserting and fixing a control valve stem (311). The valve stem slot (221) corresponds to the sliding groove (114) inside and outside and is connected to each other.

4. The filter angle valve according to claim 3, characterized in that: The angle valve housing (1) is fixedly connected to an inner wall thereof with an annular mounting seat (115) for mounting the ceramic valve core assembly (2); the annular mounting seat (115) is provided with an insertion ring groove (1151) for inserting the first valve disc (21) on a side away from the water inlet joint; The outer walls of the first valve disc (21) and the third valve disc (23) are both provided with limiting protrusions (212), and the inner wall of the angle valve housing (1) is respectively provided with limiting grooves (116) for corresponding insertion of the limiting protrusions (212) at the positions of the first valve disc (21) and the third valve disc (23).

5. The filter angle valve according to claim 3, characterized in that: The control handle (3) is arranged around the outside of the angle valve housing (1); the angle valve housing (1) is provided with a limiting step (113) on the outer peripheral wall thereof, which is in contact with the control handle (3); and the sliding groove (114) is provided at a position adjacent to the limiting step (113) of the angle valve housing (1); The control handle (3) comprises two symmetrically arranged half rings (31) that are snap-fitted to each other, and a handle body (32) sleeved on the outside of the two half rings (31); an elastic snap-fit ​​structure (33) is provided between the handle body (32) and the half rings (31); The number of the control valve rods (311) is two and they are connected to the inner walls of the two half rings (31) in a one-to-one correspondence. The control valve rods (311) pass through the sliding groove (114) and are inserted into the valve rod slot (221).

6. The filter angle valve according to claim 5, characterized in that: The outer wall of the handle body (32) is provided with friction lines (321).

7. The filter angle valve according to claim 5, characterized in that: A paddle (322) is vertically arranged on the outer wall of the handle body (32).

8. The filter angle valve according to claim 2, characterized in that: The filter element (41) is embedded with a first sealing ring (412) on the outer peripheral wall near one end of the connecting seat (42); the first sealing ring (412) is located in the first ring groove (421) and is tightly pressed against the connecting seat (42); the sealing end cover (118) is externally sleeved with a second sealing ring (1181) for abutting against the inner wall of the angle valve housing (1).

9. The filter angle valve according to claim 2, characterized in that: A check valve (5) is provided in both the connecting seat (42) and the water outlet joint (12).

10. The filter angle valve according to claim 9, characterized in that: The number of the water outlet joints (12) is one / two.

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