A ceramic spool assembly and self-cleaning ceramic spool

Abstract

A ceramic valve core assembly comprises a static sheet and a dynamic sheet which is rotatable and slidably attached to the static sheet. The static sheet has a first cold water inlet, a first hot water inlet and a first water outlet. The dynamic sheet has a first water inlet and a second water outlet. The first water outlet and the second water outlet are connected and form a water outlet channel. The first water inlet comprises a filter mounting cavity and a mixed water cavity which are arranged in sequence from top to bottom and are connected to each other. The first cold water inlet and the first hot water inlet are connected to the mixed water cavity respectively or simultaneously by rotating the dynamic sheet. The lower edge of the second water outlet abuts the upper edge of the first water outlet. Moving the dynamic sheet away from the water inlet of the static sheet can make the first cold water inlet, the first hot water inlet, the mixed water cavity and the passage of the first water outlet conductive. Compared with the prior art, the specially designed dynamic sheet and static sheet can automatically remove impurities accumulated at the bottom of the filter screen by pulling the handle, thereby reducing the failure rate of the electromagnetic valve.

Description

Technical Field

[0001] This invention relates to the field of fluid control technology, and in particular to a ceramic valve core assembly and a self-cleaning ceramic valve core. Background Technology

[0002] Faucets with hot and cold water adjustment functions are very common bathroom products in spaces such as bathrooms and toilets. Existing two-inlet-one-outlet faucets usually use ceramic valve cores to control the water flow and adjust the water temperature. Another common valve core structure currently uses a solenoid valve to control the water flow. This structure involves a complex overall piping and is prone to problems such as malfunctions and leaks.

[0003] To further enhance the user experience, existing solenoid valve cores often have a filter screen installed at the water inlet. If there are impurities in the pipeline, they will remain in the hot and cold water mixing chamber and will not be discharged or enter the solenoid valve diaphragm, causing solenoid valve malfunction. Summary of the Invention

[0004] The present invention aims to overcome the shortcomings of the prior art and provide a ceramic valve core assembly and a self-cleaning ceramic valve core.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A ceramic valve core assembly includes a stationary plate and a movable plate. The movable plate is rotatably and slidably attached to the stationary plate. The stationary plate has a first cold water inlet, a first hot water inlet, and a first water outlet. The movable plate has a first water inlet and a second water outlet. The first water outlet and the second water outlet are connected to form a water outlet channel. The first water inlet includes a filter installation cavity and a mixing cavity arranged sequentially from top to bottom and connected to each other. Rotating the movable plate connects the first cold water inlet and the first hot water inlet to the mixing cavity, either separately or simultaneously. The lower edge of the second water outlet abuts against the upper edge of the first water outlet. Moving the movable plate away from the water inlet of the stationary plate can connect the passage of the first cold water inlet, the first hot water inlet, the mixing cavity, and the first water outlet.

[0006] Furthermore, the upper part of the first outlet is open, or the lower part of the second outlet is narrowed.

[0007] According to another aspect of the present invention, a self-cleaning ceramic valve core is provided, comprising the valve core assembly as described above, and further comprising a sealing seat, a flexible blocking body, a solenoid valve, and a filter element. The sealing seat is operatively connected to the moving plate, and a balancing chamber is provided between the sealing seat and the flexible blocking body. The balancing chamber is connected to a pressure relief channel, the solenoid valve controls the opening and closing of the pressure relief channel, the flexible blocking body is used to conduct or block the flow of water from the first inlet to the second outlet, and the filter element is installed in the filter element mounting cavity.

[0008] Furthermore, the aforementioned self-cleaning ceramic valve core also includes a rotating sleeve snapped onto the upper part of the sealing seat, a handle hinged within the rotating sleeve and engaging with the upper part of the sealing seat, and a blocking body bracket snapped onto the lower part of the sealing seat. The lower end of the blocking body bracket snaps onto the moving plate. The flexible blocking body is installed in an assembly hole in the middle of the blocking body bracket, forming a water inlet cavity between the flexible blocking body and the bottom surface of the blocking body bracket. The assembly hole communicates with the second water outlet. A second water inlet is formed on the bottom wall of the water inlet cavity, and the second water inlet communicates with the first water inlet.

[0009] Furthermore, a first pressure relief port is provided on the side wall of the balance chamber, a second pressure relief port is provided on the side wall of the blocking body support corresponding to the position of the first pressure relief port, a third pressure relief port is provided on the moving plate, a venting groove is provided on the stationary plate corresponding to the position of the third pressure relief port, and a fourth pressure relief port is provided at one end of the venting groove. The first pressure relief port, the second pressure relief port, the third pressure relief port, and the fourth pressure relief port constitute a first pressure relief passage.

[0010] Furthermore, the aforementioned self-cleaning ceramic valve core also includes a valve core seat and a valve core sleeve. The stationary plate is snapped into the valve core seat, and the valve core sleeve is snapped into the valve core seat. The valve core seat has corresponding through holes connecting the first cold water inlet, the first hot water inlet, and the first water outlet. The valve core seat is provided with a second pressure relief passage. The solenoid valve includes a valve sleeve and a valve stem sleeved in the valve sleeve. The valve stem is configured to conduct or block the connection between the first water outlet and the second pressure relief passage. The first pressure relief passage and the second pressure relief passage together constitute the pressure relief channel.

[0011] Furthermore, the second pressure relief passage includes a pressure relief chamber located between the bottom surface of the valve core seat and the solenoid valve. A fifth pressure relief port is opened on the side wall of the pressure relief chamber, and the fifth pressure relief port is connected to the fourth pressure relief port. A sixth pressure relief port is opened on the upper wall of the pressure relief chamber, and the sixth pressure relief port is connected to the first water outlet through a pressure relief groove. The valve stem is located below the sixth pressure relief port for opening or blocking the sixth pressure relief port.

[0012] Furthermore, the rotating sleeve, sealing seat, blocking body support, and moving plate can rotate relative to the valve core sleeve, and the sealing seat, blocking body support, and moving plate can move horizontally relative to the stationary plate within the valve core sleeve.

[0013] Furthermore, a water-stop pad is provided between the flexible blocking body and the blocking body support. The water-stop pad has an outwardly extending extension that engages with the sealing seat.

[0014] Furthermore, the flexible blocking body is a diaphragm, and a spring is provided in the balance cavity, with one end of the spring abutting against the sealing seat and the other end abutting against the diaphragm.

[0015] The beneficial effects of this invention are: This invention uses specially designed moving and stationary plates to automatically remove impurities accumulated at the bottom of the filter screen by simply turning the handle, thus reducing the failure rate of the solenoid valve.

[0016] When the pressure relief passage is open, the fluid in the balance chamber is discharged, creating a pressure difference between the inlet chamber and the balance chamber. At this time, the water flow pushes the diaphragm to open the outlet passage. The solenoid valve core structure with this design is simple, reliable, and suitable for widespread application. Attached Figure Description

[0017] Figure 1 This is an exploded view of the structure of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0018] Figure 2 This is a cross-sectional schematic diagram of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0019] Figure 3 This is a schematic cross-sectional view of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the stationary plate structure of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the moving plate structure of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the blocking body support structure of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the sealing seat structure of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of a flexible blocking body structure of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0025] Figure 9 This is a schematic diagram of the bottom surface structure of the valve core seat of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0026] Figure 10 This is a schematic diagram of the upper structure of the valve core seat of a self-cleaning ceramic valve core according to an embodiment of the present invention.

[0027] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to represent selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of the invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," "one side," and "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connect," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] The present invention will be described in detail below with reference to the embodiments.

[0032] Please see Figure 1-10According to one embodiment of the present invention, a self-cleaning ceramic valve core is provided, comprising a stationary plate 1, a moving plate 2, a sealing seat 3, a flexible blocking body 4, a solenoid valve 5, a filter plate 6, a rotating sleeve 7 snapped onto the upper part of the sealing seat 3, a handle 8 hinged within the rotating sleeve 7 and engaging with the upper part of the sealing seat 3, a blocking body support 9 snapped onto the lower part of the sealing seat 3, a valve core seat 10, and a valve core sleeve 11. The moving plate 2 is rotatably and slidably attached to the stationary plate 1. The stationary plate 1 has a first cold water inlet 101, a first hot water inlet 102, and a first water outlet 103. The moving plate 2 has a first water inlet 21 and a second water outlet. 22. The first outlet 103 and the second outlet 22 are connected to form a water outlet channel. The first inlet 21 includes a filter plate mounting cavity 211 and a mixing cavity 212 arranged sequentially from top to bottom and connected to each other. By rotating the movable plate 2, the first cold inlet 101 and the first hot inlet 102 are connected to the mixing cavity 212, either separately or simultaneously. The lower edge of the second outlet 22 abuts against the upper edge of the first outlet 23. Moving the movable plate 2 away from the inlet of the stationary plate 1 can make the passage between the first cold inlet 101, the first hot inlet 102, the mixing cavity 212, and the first outlet 103 connected. The upper part of the first outlet 103 is open, or the lower part of the second outlet 22 is narrowed. The sealing seat 3 is connected to the moving plate 2. A balance chamber 31 is provided between the sealing seat 3 and the flexible blocking body 4. The balance chamber 31 is connected to a pressure relief channel. The solenoid valve 5 controls the opening and closing of the pressure relief channel. The flexible blocking body 4 is used to conduct or block the flow of water from the first inlet 21 to the second outlet 22. The filter plate 6 is installed in the filter plate mounting cavity 211. The lower end of the blocking body bracket 9 is engaged with the moving plate 2. The flexible blocking body 4 is installed in the assembly hole 91 in the middle of the blocking body bracket 9, forming an inlet cavity 92 between the flexible blocking body 4 and the bottom surface of the blocking body bracket 9. The assembly hole 91 is connected to the second outlet 22. A second inlet 93 is provided on the bottom wall of the inlet cavity 92, and the second inlet 93 is connected to the first inlet 21. A first pressure relief port 311 is provided on the side wall of the balance chamber 31. A second pressure relief port 312 is provided on the side wall of the blocking body bracket 9 corresponding to the position of the first pressure relief port 311. A third pressure relief port 23 is provided on the moving plate 2. A venting groove 14 is provided on the stationary plate 1 corresponding to the position of the third pressure relief port 23. A fourth pressure relief port 15 is provided at one end of the venting groove 14. The first pressure relief port 311, the second pressure relief port 312, the third pressure relief port 23, and the fourth pressure relief port 15 constitute the first pressure relief passage.

[0033] The stationary plate 1 is snapped into the valve core seat 10, and the valve core sleeve 11 is snapped into the valve core seat 10. The valve core seat 10 has corresponding through holes that connect the first cold water inlet 101, the first hot water inlet 102, and the first water outlet 103. The valve core seat 10 is provided with a second pressure relief passage. The solenoid valve 5 includes a valve sleeve 51 and a valve stem 52 sleeved in the valve sleeve 51. The valve stem 52 is configured to open or close the connection between the first water outlet 103 and the second pressure relief passage. The first pressure relief passage and the second pressure relief passage together constitute the pressure relief channel. The second pressure relief passage includes a pressure relief chamber 104 located between the bottom surface of the valve core seat 10 and the solenoid valve 5. A fifth pressure relief port 1041 is opened on the side wall of the pressure relief chamber 104, which is connected to a fourth pressure relief port 15. A sixth pressure relief port 1042 is opened on the upper wall of the pressure relief chamber 104, which is connected to the first outlet 103 through a pressure relief groove 1043. The valve stem 52 is located below the sixth pressure relief port 1042 and is used to open or block the sixth pressure relief port 1042. The rotating sleeve 7, sealing seat 3, blocking body support 9, and moving plate 2 can rotate relative to the valve core sleeve 11. The sealing seat 3, blocking body support 9, and moving plate 2 can move horizontally relative to the stationary plate 1 within the valve core sleeve 11. A water-stopping pad 41 can also be provided between the flexible blocking body 4 and the blocking body support 9. The water-stopping pad 41 has an outwardly extending extension 411, which is engaged with the sealing seat 3. The flexible blocking body 4 has a downwardly extending assembly part 41 in the middle, and the water-stopping pad 41 has a corresponding through hole in the middle. The assembly part 41 passes through the through hole and is inserted into the assembly hole 91. The flexible blocking body 4 can be a diaphragm. The balance cavity 31 is provided with a spring 311. One end of the spring 311 abuts against the sealing seat 3, and the other end abuts against the diaphragm 4.

[0034] The working principle of this application is as follows: like Figure 2As shown, with the handle closed, the valve stem 52 of the solenoid valve 5 moves downward to open the sixth pressure relief port 1042. At this time, the pressure relief passage is connected to the first outlet 103, and the fluid in the balance chamber 31 is discharged through the first pressure relief port 311, the second pressure relief port 312, the third pressure relief port 23, the fourth pressure relief port 15, the fifth pressure relief port 1041, the pressure relief chamber 104, the sixth pressure relief port 1042, the pressure relief groove 1043, and the first outlet 103. Simultaneously, water flows into the mixing chamber 212 from the first cold inlet 101 and / or the first hot inlet 102. The mixed water is filtered by the filter 6 and then enters the filter mounting chamber 211, before entering the inlet chamber 92 from the second inlet 93. At this time, due to the fluid discharge from the balance chamber 31, a pressure difference is created between the inlet chamber 92 and the balance chamber 31. The water flow pushes the flexible blocking body 4 upwards and flows out through the mounting hole 91, the second outlet 22, and the first outlet 103. Impurities carried in the water source are blocked by the filter 6 within the mixing chamber 212. Figure 3 As shown, when the handle 8 is turned in the opposite direction, the sealing seat 3, the blocking body support 9, and the moving plate 2 move to the right as a whole. At this time, the lower edge of the second outlet 22 is misaligned with the upper edge of the first outlet 103, and the mixing chamber 212 is directly connected to the first outlet 103. Due to the low resistance of this passage, the water flow directly flushes the mixing chamber 212 and carries away the impurities accumulated inside, which are then discharged from the first outlet 103. The valve stem 52 of the solenoid valve 5 moves upward to block the sixth pressure relief port 1042. At this time, the pressure relief passage and the passage of the first outlet 103 are blocked, and the pressure in the balance chamber 31 is greater than the water pressure in the inlet chamber 92, thereby blocking the water outlet passage. This structure, through the specially designed moving plate 2 and stationary plate 1, enables the automatic removal of impurities accumulated at the bottom of the filter screen 6 by turning the handle 8, reducing the failure rate of the solenoid valve 5.

[0035] The implementation schemes in the above embodiments can be further combined or replaced, and the embodiments are merely descriptions of preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention. Various changes and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A self-cleaning ceramic valve core, characterized in that: The device includes a ceramic valve core assembly, which comprises a stationary plate and a moving plate. The moving plate is rotatably and slidably attached to the stationary plate. The stationary plate has a first cold water inlet, a first hot water inlet, and a first water outlet. The moving plate has a first water inlet and a second water outlet. The first water outlet and the second water outlet are connected to form a water outlet channel. The first water inlet includes a filter plate mounting cavity and a mixing cavity arranged sequentially from top to bottom and connected to each other. A filter plate is installed in the filter plate mounting cavity. Rotating the moving plate connects the first cold water inlet and the first hot water inlet to the mixing chamber, either separately or simultaneously. The lower edge of the second outlet abuts against the upper edge of the first outlet. Moving the moving plate away from the stationary plate towards the first cold inlet and the first hot inlet can make the passage between the first cold inlet, the first hot inlet, the mixing chamber and the first outlet open. By moving the moving plate relative to the stationary plate, the lower edge of the second water outlet is misaligned with the upper edge of the first water outlet. The mixing chamber is directly connected to the first water outlet, so that the water flow directly flushes the mixing chamber and carries away the impurities accumulated therein. It also includes a sealing seat, a flexible blocking body, a solenoid valve, the sealing seat being connected to the moving plate, a balance chamber being provided between the sealing seat and the flexible blocking body, the balance chamber being connected to a pressure relief channel, the solenoid valve controlling the opening and closing of the pressure relief channel, and the flexible blocking body being used to conduct or block the flow of water from the first inlet to the second outlet.

2. The self-cleaning ceramic valve core according to claim 1, characterized in that: The upper part of the first water outlet is open, or the lower part of the second water outlet is narrowed.

3. The self-cleaning ceramic valve core according to claim 1, characterized in that: It also includes a rotating sleeve that snaps onto the upper part of the sealing seat, a handle that is hinged to the rotating sleeve and drivesly engages with the upper part of the sealing seat, and a blocking body bracket that snaps onto the lower part of the sealing seat. The lower end of the blocking body bracket snaps onto the moving piece. The flexible blocking body is installed in the assembly hole in the middle of the blocking body bracket to form a water inlet cavity between the flexible blocking body and the bottom surface of the blocking body bracket. The assembly hole communicates with the second water outlet. A second water inlet is opened on the bottom wall of the water inlet cavity, and the second water inlet communicates with the first water inlet.

4. The self-cleaning ceramic valve core according to claim 3, characterized in that: A first pressure relief port is provided on the side wall of the balance chamber, a second pressure relief port is provided on the side wall of the blocking body support corresponding to the position of the first pressure relief port, a third pressure relief port is provided on the moving plate, a venting groove is provided on the stationary plate corresponding to the position of the third pressure relief port, and a fourth pressure relief port is provided at one end of the venting groove. The first pressure relief port, the second pressure relief port, the third pressure relief port, and the fourth pressure relief port constitute a first pressure relief passage.

5. A self-cleaning ceramic valve core according to claim 4, characterized in that: It also includes a valve core seat and a valve core sleeve. The stationary plate is snapped into the valve core seat, and the valve core sleeve is snapped into the valve core seat. The valve core seat has a corresponding through hole connecting the first cold water inlet, the first hot water inlet, and the first water outlet. The valve core seat is provided with a second pressure relief passage. The solenoid valve includes a valve sleeve and a valve stem sleeved in the valve sleeve. The valve stem is configured to open or close the connection between the first water outlet and the second pressure relief passage. The first pressure relief passage and the second pressure relief passage together constitute the pressure relief channel.

6. A self-cleaning ceramic valve core according to claim 5, characterized in that: The second pressure relief passage includes a pressure relief chamber located between the bottom surface of the valve core seat and the solenoid valve. A fifth pressure relief port is opened on the side wall of the pressure relief chamber, and the fifth pressure relief port is connected to the fourth pressure relief port. A sixth pressure relief port is opened on the upper wall of the pressure relief chamber, and the sixth pressure relief port is connected to the first water outlet through a pressure relief groove. The valve stem is located below the sixth pressure relief port for opening or blocking the sixth pressure relief port.

7. A self-cleaning ceramic valve core according to claim 6, characterized in that: The rotating sleeve, sealing seat, blocking body support, and moving plate can rotate relative to the valve core sleeve, and the sealing seat, blocking body support, and moving plate can move horizontally relative to the stationary plate within the valve core sleeve.

8. A self-cleaning ceramic valve core according to claim 7, characterized in that: A water-stop pad is also provided between the flexible blocking body and the blocking body support. The water-stop pad has an outwardly extending extension that engages with the sealing seat.

9. A self-cleaning ceramic valve core according to claim 1, characterized in that: The flexible blocking body is a diaphragm, and a spring is provided in the balance cavity. One end of the spring abuts against the sealing seat, and the other end abuts against the diaphragm.

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