Precision ceramic valve with two inlets and two outlets

Abstract

A precision ceramic valve with two inlets and two outlets comprises a rotating seat within a valve housing. Below the rotating seat, inside the valve housing, are a slider, a baffle, a movable valve plate, and a fixed valve plate stacked in sequence. A valve stem extending upwards through the valve housing is centrally mounted on the rotating seat. The actuating part at the bottom of the valve stem engages with the slider. The slider and the rotating seat are respectively connected to the baffle and the movable valve plate. By operating the valve stem, the baffle can be moved horizontally via the slider, or the movable valve plate can be rotated via the rotating seat after horizontal movement. Below the valve housing, a base is attached, and the base has a water inlet chamber in which a balancing valve is installed.

Description

Technical Field

[0001] The present invention relates to a "precision ceramic valve with two water inlets and two water outlets", especially a precision ceramic valve that can be used to switch the water source for dual-purpose water equipment. Prior Art

[0002] Generally, water-using equipment has both cold water and hot water for selection. The warm water is mainly obtained by mixing hot water when introducing cold water, so that the cold water and hot water are mixed in equal proportion and then the outflow is controlled. Moreover, the mixing ratio of the cold water and hot water can be adjusted as needed to achieve the required suitable water temperature. The mixing control of the cold water and hot water is mainly completed through the control of a precision ceramic valve. However, since a conventional ceramic valve can only be used for one water-using equipment, when a single cold and hot water source needs to supply water to two water-using equipment simultaneously, a water distributor needs to be installed between the pipelines of the two water-using equipment and the cold and hot water sources, or a pulling head needs to be set up separately. In this way, the complexity of the entire water pipeline will be greatly increased. When using water, due to the need to move and switch between two ceramic valves and the water distributor by hand, or accidentally touch the pulling head, it will cause inconvenience in use.

[0003] Therefore, in view of this, the inventor has come up with the idea of creation, and then designed it based on years of experience, discussed it extensively, made sample tests, and made multiple corrections and improvements, and finally introduced the present invention. Summary of the Invention Problems to be Solved by the Invention

[0004]

[0005] A conventional precision ceramic valve can only be used for one water-using equipment. When a single cold and hot water source needs to supply water to two water-using equipment simultaneously, a water distributor needs to be installed between the pipelines of the two water-using equipment and the cold and hot water sources, or a pulling head needs to be set up separately. In this way, the complexity of the entire water pipeline will be greatly increased. This is the technical problem to be solved. Means for Solving the Problems

[0006]

[0007] This invention relates to a precision ceramic valve with two inlets and two outlets. The valve comprises a rotating seat within a valve housing. Below the rotating seat, inside the valve housing, are a slider, a baffle, a movable valve plate, and a fixed valve plate stacked sequentially. A valve stem extending upwards through the valve housing is centrally mounted on the rotating seat. The actuating part at the bottom of the valve stem engages with the slider. The slider and the rotating seat are respectively connected to the baffle and the movable valve plate. Operation of the valve stem causes the baffle to move via the slider, or the movable baffle to rotate via the rotating seat. This change in the alignment between the movable valve plate and the fixed valve plate allows for the opening and closing of the water supply, or the adjustment of the hot and cold water mixing ratio and the water flow rate. Below the valve housing, a base is used to prevent the fixed valve plate, the movable valve plate, the baffle, the slider, and the rotating seat from falling out. This base has a water inlet chamber, in which a balancing valve is installed. The precision ceramic valve is placed in a pre-installed valve chamber in a water distribution valve seat. This water distribution valve seat has a cold water inlet channel, a hot water inlet channel, a first outlet channel, and a second outlet channel running outwards from the bottom of the valve chamber. The cold water inlet channel and the hot water inlet channel are used to connect to cold and hot water sources, respectively. Through the first outlet channel and the second outlet channel, they are connected to water-using devices. Thus, by operating the same precision ceramic valve, cold water, hot water, or a mixture of hot and cold water can be delivered to one of the water-using devices via the water distribution valve seat. The valve housing has an internal chamber with an upper port formed through a narrowing annular wall. The rotating seat, the slider, the baffle, the movable valve plate, and the fixed valve plate are sequentially placed into the chamber of the valve housing, allowing the valve stem to pass through the valve housing via the upper port. A groove is formed at the bottom of the baffle. The movable valve plate has a first hole and a second hole. In normal operation, the groove of the baffle avoids the first hole, achieving a shut-off effect where neither hot nor cold water flows out. The fixed valve plate has a cold water flow hole, two hot water flow holes, a first outlet hole, and a second outlet hole. The two hot water flow holes are interconnected, allowing the cold water flow hole to be positioned... On one side of the two hot water flow holes, the first water outlet and the second water outlet are respectively located on the other side. When the fixed valve plate and the movable valve plate overlap and are in the water-off position, the cold water flow hole aligns with the first hole, while the two hot water flow holes, the first water outlet, and the second water outlet avoid the first and second holes, effectively blocking both the cold and hot water sources and preventing them from flowing out from the precision ceramic valve through the water distribution valve seat. The base is provided with a cold water inlet, a hot water inlet, a first water outlet, and a second water outlet, and a reserved water inlet chamber is provided. The cold water inlet and the hot water inlet are connected to the water inlet chamber.When the rotating seat, the slider, the baffle, the movable valve piece, and the fixed valve piece contained in the chamber are stacked in sequence, by using the combination of the valve housing and the base, when the base provides support for the fixed valve piece, the movable valve piece, the baffle, the slider, and the rotating seat, in addition to enabling the fixed valve piece to be fixed on the base, the cold water inlet, the hot water inlet, the first water outlet, and the second water outlet of the base can be respectively aligned with the cold water flow hole, the hot water flow hole, the first water outlet through hole, and the second water outlet through hole of the fixed valve piece. And when the precision ceramic valve is placed in the valve chamber reserved in the water distribution valve seat, the cold water inlet channel, the hot water inlet channel, the first water outlet channel, and the second water outlet channel can be directly or indirectly connected to the cold water inlet, the hot water inlet, the first water outlet, and the second water outlet of the base respectively; thereby, a precision ceramic valve with two inlets and two outlets can be formed. Advantages of the Invention

[0008]

[0009] (1) For the precision ceramic valve with two inlets and two outlets of the present invention, by using the same precision ceramic valve, the use control of two water-using devices can be achieved, and each has the function of mixing cold and hot water during use control. In this way, there is no need to install a water distributor between the pipelines of the two water-using devices and the cold and hot water sources, or separately set a pulling head, which effectively simplifies the complexity of the entire pipeline, and there is no need to worry about accidentally touching the pulling head when using water, making the use more convenient.

[0010] (2) For the precision ceramic valve with two inlets and two outlets of the present invention, by using the same precision ceramic valve, the use control of two water-using devices can be achieved, and each has the function of mixing cold and hot water during use control. Therefore, when the user uses water, there is no need to move and switch between two precision ceramic valves through the hand. Simply rotating the handle in two opposite directions can quickly complete the operation, making the use more time-saving and labor-saving.

[0011] (3) For the precision ceramic valve with two inlets and two outlets of the present invention, the precision ceramic valve is controlled by pulling up and rotating the valve rod, and through this lifting design, it can meet the needs of different consumers. Brief Description of the Drawings

[0012]

[0013] Figure 1 is a three-dimensional combined view of the present invention when used in a water distribution valve seat.

[0014] [Figure 2] is a diagram showing the state of the present invention when it is placed in a water distribution valve seat for use.

[0015] [Figure 3] is an exploded perspective view of the present invention.

[0016] [Figure 4] is an exploded perspective view of the present invention from another angle.

[0017] Figure 5 is a plan view of the water distribution valve seat of the present invention.

[0018] [Figure 6] is a plan view of the present invention when it is placed in a water distribution valve seat.

[0019] [Figure 7] is a cross-sectional view of the present invention when it is placed in a water distribution valve seat.

[0020] [Figure 8] is another angled cross-sectional view of the present invention when it is placed in a water distribution valve seat for use.

[0021] [Figure 9] is a diagram showing the alignment of the holes when the water is turned off according to the present invention.

[0022] [Figure 10] is the second diagram showing the alignment of the holes when the water is turned off according to the present invention.

[0023] [Figure 11] is a diagram showing the upper plate state when the present invention is in use.

[0024] [Figure XII] is a diagram showing the displacement of the baffle of the present invention.

[0025] [Figure 13] is a diagram showing the orifice alignment of the cold and hot water mixture of the present invention before it is introduced into a water-using device.

[0026] [Figure 14] is a state diagram of water supply to a water-using device according to the present invention.

[0027] [Figure 15] is a diagram showing the orifice alignment of the cold and hot water mixture of the present invention before it is introduced into another water-using device.

[0028] [Figure 16] is a state diagram of the present invention supplying water to another water-using device.

[0029] [Figure 17] is a diagram of another preferred embodiment of the present invention.

[0030] [Figure 18] is an exploded perspective view of another preferred embodiment of the present invention.

[0031] [Figure 19] is a detailed schematic diagram of another preferred embodiment of the present invention.

[0032] [Figure 20] is a cross-sectional view of another preferred embodiment of the present invention, which is used in a water distribution valve seat. Implementation

[0033] To enable your review committee to have a better understanding of the purpose, features, and effects of this invention, the following is a detailed description in conjunction with the accompanying drawings:

[0034] Generally speaking, according to the present invention, as shown in Figures 1 to 10, the present invention provides a precision ceramic valve with two inlets and two outlets. The precision ceramic valve has a rotating seat (20) assembled inside a valve housing (10). Below the rotating seat (20) inside the valve housing (10), there are a slider (30), a baffle (31), a movable valve plate (40) and a fixed valve plate (50) stacked in sequence. The rotating seat (20) has a valve stem (21) that extends upward through the valve housing (10). The bottom actuating part (211) is engaged with the slider (30), and the slider (30) and the rotating seat (20) are respectively connected to the baffle (31) and the movable valve plate (40). The operation of the valve rod (21) can cause the baffle (31) to translate via the slider (30), or after translation, the movable valve plate (40) can rotate via the rotating seat (20). This allows the movable valve plate (40) to change its alignment with the fixed valve plate (50) after movement, thereby achieving [the desired effect]. To control the flow of water, or to change the mixing ratio of hot and cold water and the flow rate, a base (60) is used below the valve housing (10) to prevent the fixed valve plate (50), the movable valve plate (40), the baffle (31), the slider (30), and the rotating seat (20) from falling out. The base (60) is provided with a water inlet chamber (65), in which a balancing valve (70) is installed. The precision ceramic valve is placed in a pre-reserved valve seat (80) during use. In the chamber (81), the water distribution valve seat (80) has a cold water inlet channel (82), a hot water inlet channel (83), a first outlet channel (84), and a second outlet channel (85) extending outward from the bottom surface of the valve chamber (81). The cold water inlet channel (82) and the hot water inlet channel (83) are used to connect to cold and hot water sources, respectively. Through the first outlet channel (84) and the second outlet channel (85), they are respectively connected to a water-using device, and can be operated through the same precision ceramic valve via the water distribution valve seat (80). The device supplies cold water, hot water, or a mixture of warm water to one of the water-using devices. The valve housing (10) has an internal chamber (11) with an upper port (13) formed through a narrowed annular wall (12). The rotating seat (20), the slider (30), the baffle (31), the movable valve plate (40), and the fixed valve plate (50) are sequentially placed into the chamber (11) of the valve housing (10), allowing the valve stem (21) to pass through the valve housing (10) via the upper port (13). The bottom end of the baffle (31) has an upward-facing groove (311). The movable valve plate (40) has a first hole (41) and a second hole (42) through it. In normal operation, when not in use, the groove (311) of the baffle (31) avoids the first hole (41), achieving a water shut-off effect where neither cold nor hot water sources can flow out.The fixed valve plate (50) has a cold water flow hole (51), two hot water flow holes (52), a first water outlet hole (53), and a second water outlet hole (54) passing through it. The two hot water flow holes (52) are interconnected, allowing the cold water flow hole (51) to be located on one side of the two hot water flow holes (52). The first water outlet hole (53) and the second water outlet hole (54) are located on the other side of the two hot water flow holes (52). When the fixed valve plate (50) and the movable valve plate (40) are stacked and in the water-off position, the cold water flow hole (51) will be aligned with the first hole (41), while the two hot water flow holes (52) and the first water outlet hole (54) will be connected. 53) The second water outlet hole (54) will avoid the first hole (41) and the second hole (42), so that both cold and hot water sources can be effectively blocked, and cannot flow out from the precision ceramic valve through the water distribution valve seat (80). The base (60) is provided with a cold water inlet (61), a hot water inlet (62), a first water outlet (63), and a second water outlet (64), and a water inlet chamber (65) is reserved. The cold water inlet (61) and the hot water inlet (62) are connected to the water inlet chamber (65). When the rotating seat (20), the slider (30), the baffle (31), and the movable valve plate (40) are installed in the chamber (11), The fixed valve plates (50) are stacked in sequence so that when the fixed valve plate (50), the movable valve plate (40), the baffle (31), the slider (30), and the rotating seat (20) are supported by the base (60) through the valve housing (10), the fixed valve plate (50), the movable valve plate (40), the baffle (31), the slider (30), and the rotating seat (20), in addition to the fixed valve plate (50) being secured on the base (60), the cold water inlet (61), the hot water inlet (62), the first outlet (63), and the second outlet (64) of the base (60) are respectively connected to the cold water flow hole (51), the hot water flow hole (52), the first outlet hole (53), and the second outlet hole (64) of the fixed valve plate (50). The two water outlet holes (54) are aligned, and when the precision ceramic valve is placed in the valve chamber (81) reserved in the water distribution valve seat (80), the cold water inlet (82), the hot water inlet (83), the first water outlet (84), and the second water outlet (85) can respectively form direct or indirect communication with the cold water inlet (61), the hot water inlet (62), the first water outlet (63), and the second water outlet (64) of the base (60) (because the cold water inlet 61 and the hot water inlet 62 of the base 60 are indirectly connected to the cold water inlet 82 and the hot water inlet 83 of the water distribution valve seat 80 through the balance valve 70).

[0035] This invention provides a precision ceramic valve with two inlets and two outlets. A limiting block (14) protrudes from one side of the upper port (13). A neck (201) is formed on the rotary seat (20) with a reduced diameter. The neck (201) protrudes from the upper port (13), and the outer periphery of the neck (201) is provided with a toothed edge (202). By protruding from the neck (201), two toothed rings (22) can be provided by the toothed edge (202) and locked after being fitted. By removing the two toothed rings (22) upwards and refitting them, the temperature limiting angle can be adjusted according to the actual use requirements.

[0036] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein the bottom end of the rotating seat (20) is provided with a channel (203) for accommodating the slider (30) and the baffle (31), so that the slider (30) and the baffle (31) can be moved by the valve stem (21) in the channel (203).

[0037] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein a spring (23) is provided on the rotating seat (20), and the spring (23) elastically supports a positioning pin (24).

[0038] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein the first hole (41) and the second hole (42) of the movable valve plate (40) are each formed with an outward expansion portion (411) (421) on one side of the hole edge. By using the outward expansion portion (411) (421) recessed from bottom to top, the coverage area of ​​the first hole (41) and the second hole (42) can be increased.

[0039] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein the bottom surface of the fixed valve plate (50) is recessed with a flow channel (521) so that the two hot water flow holes (52) can be connected through the flow channel (521).

[0040] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein the base (60) is formed by an upper seat (601) and a lower seat (602) being joined together, so that the cold water inlet (61), the hot water inlet (62), the first outlet (63) and the second outlet (64) can all be simultaneously located at the relative positions of the upper seat (601) and the lower seat (602).

[0041] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein the upper seat (601) and the lower seat (602) are then fused together by ultrasonic waves.

[0042] This invention provides a precision ceramic valve with two inlets and two outlets. The precision ceramic valve utilizes an adapter (90) for connection, allowing it to be smoothly installed in the valve chamber (81) of the water distribution valve seat (80) after a check valve (100) is installed. The adapter (90) is provided with a cold water inlet (91), a hot water inlet (92), a first outlet (93), and a second outlet (94), allowing the base (60) to connect with the water distribution valve seat (80). 80) The adapter can be connected to each other through the cold water port (91), the hot water port (92), the first outlet (93) and the second outlet (94) of the adapter. A check valve (100) is placed in both the cold water port (91) and the hot water port (92) of the adapter (see Figures 17 to 20). Through the installation of the check valve (100), the precision ceramic valve can also prevent water from flowing back.

[0043] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein the adapter (90) is formed by an upper adapter (901) and a lower adapter (902) being joined together, so that the cold water port (91), the hot water port (92), the first outlet (93) and the second outlet (94) of the adapter can all be simultaneously located at the relative positions of the upper adapter (901) and the lower adapter (902).

[0044] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein the upper seat (901) and the lower seat (902) of the adapter are then fused together by ultrasonic welding.

[0045] The present invention provides a precision ceramic valve with two inlets and two outlets, wherein the water distribution valve seat (80) is embedded in the wall so that the first outlet channel (84) can be connected to the water faucet (a water-using device) below, and the second outlet channel (85) is connected to the wall-mounted shower head (another water-using device).

[0046] In actual use, the precision ceramic valve of the present invention is installed in the valve chamber (81) of the water distribution valve seat (80), and a handle is connected to the valve stem (21). By operating the handle, the water distribution valve seat (80) can select one of the water-using devices for water supply. When supplying water, the mixing ratio of cold and hot water can also be adjusted to obtain a suitable water temperature. When one of the water-using devices is to be used, the handle is first pulled up, so that the valve stem (21) drives the baffle (31) to move through the slider (30), so that the groove (311) can simultaneously conduct the first of the movable valve plate (40). After the first hole (41) and the second hole (42) (as shown in Figures 11 and 12) form a complete water flow channel, the handle is rotated in one direction. After rotation, the valve stem (21) will drive the rotating seat (20) and the movable valve plate (40) to rotate together, so that the first hole (41), the second hole (42), the cold water flow hole (51), and the first water outlet hole (53) are aligned at the same time, so that the cold water flowing in from the cold water inlet channel (82), the balance valve (70), the cold water inlet (61), and the cold water flow hole (51) can pass through the first hole (41) again. The continuous transfer of the groove (311) and the second hole (42) from the first water outlet (53) and the first water outlet (63) through the first water outlet channel (84) of the water distribution valve seat (80) into one of the water-using devices, and the rotation system of the movable valve plate (40) is insufficient to align the first hole (41) and the second hole (42) with the second water outlet (54), so neither cold nor hot water will be sent from the second water outlet (54) through the water distribution valve seat (80) into another water-using device; and in the water supply process of the water-using device, if warm water is to be used at the same time, or even hot water is used only, the system can By continuously rotating the handle, the first hole (41) can gradually overlap with the hot water flow hole (52). The size of the overlap can be adjusted depending on the rotation amplitude. When the first hole (41) simultaneously connects the cold water flow hole (51) and the hot water flow hole (52) (see Figures 13 and 14), the cold and hot water will mix to form warm water for use. When the handle is rotated to the maximum stroke position, so that the first hole (41) completely avoids the cold water flow hole (51), hot water can flow out for use. To turn off the water, simply turn the handle back and press down.

[0047] Similarly, when using the device, to transfer water to another water-using device, the handle is pulled up and then rotated in the opposite direction so that the first hole (41) and the second hole (42) are simultaneously aligned with the cold water flow hole (51) and the second water outlet hole (54), or simultaneously aligned with the cold water flow hole (51), the other hot water flow hole (52), and the second water outlet hole (54) (please refer to Figures 15 and 16 for reference), or simultaneously aligned with the hot water flow hole (52) and the second water outlet hole (54), so that the cold water and the mixed warm water can be transferred to another water-using device. Water or hot water can be transferred through the second water outlet (54) and sent from the second water outlet (64) through the second water outlet channel (85) into another water-using device. When the valve stem (21) drives the rotating seat (20) to rotate in two directions, the two toothed rings (22) respectively stop at both ends of the limiting block (14), which can prevent the hot water from directly turning to the maximum at the moment of opening, which can easily cause scalding. By changing the angle between the two toothed rings (22), the maximum outlet temperature of the hot water can be appropriately adjusted according to individual needs.

[0048] The above-mentioned precision ceramic valve with two inlets and two outlets has the following advantages: (1) It can control the use of two water-using devices using the same precision ceramic valve. When using the control, each device also has the function of mixing cold and hot water. In this way, there is no need to install a water distributor between the two water-using devices and the cold and hot water sources, or to set up a separate pull head, so as to effectively simplify the complexity of the entire pipeline and not worry about accidentally touching the pull head when using water, making it more convenient to use; (2) It can control the use of two water-using devices using the same precision ceramic valve. When using the control, each device also has the function of mixing cold and hot water. Therefore, when using water, the user does not need to move and switch between the two precision ceramic valves by hand. The user can quickly complete the switch by simply turning the handle in two opposite directions, which saves time and effort; (3) The precision ceramic valve is controlled by flipping and rotating the valve stem (21). The flip-type design can meet the needs of different consumers.

[0049] The above description is merely one preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention; that is, all equivalent changes and modifications made in accordance with the claims of the present invention should still fall within the scope of the present invention.

[0050]

[0051] This invention part

[0052] (10): Valve body

[0053] (11): Refrigeration room

[0054] (12): Reduced diameter annular wall

[0055] (13): Upper port

[0056] (14): Limiting block

[0057] (20): Rotary seat

[0058] (201): Neck

[0059] (202): Tooth edge

[0060] (203): Channel

[0061] (21): Valve stem

[0062] (211): Actuating part

[0063] (22): Gear ring

[0064] (23): Spring

[0065] (24): Positioning pin

[0066] (30): Slider

[0067] (31): baffle

[0068] (311): Groove

[0069] (40): Movable valve plate

[0070] (41): First hole

[0071] (411): Outer expansion section

[0072] (42): Second hole

[0073] (421): Outer expansion section

[0074] (50): Fixed valve plate

[0075] (51): Cold water flow hole

[0076] (52): Hot water flow hole

[0077] (521): Flow channel

[0078] (53): First water outlet hole

[0079] (54): Second water outlet hole

[0080] (60): Base

[0081] (601): Seat

[0082] (602):Get off your seat

[0083] (61): Cold water inlet

[0084] (62): Hot water inlet

[0085] (63): First outlet

[0086] (64): Second outlet

[0087] (65): Water inlet chamber

[0088] (70): Balancing valve

[0089] (80): Water distribution valve seat

[0090] (81): Valve chamber

[0091] (82): Cold water enters the water channel

[0092] (83): Hot water inlet

[0093] (84): First waterway

[0094] (85): Second waterway

[0095] (90): Adapter

[0096] (901): Adapter seat

[0097] (902): Transfer to a lower seat

[0098] (91): Cold water inlet of adapter

[0099] (92): Hot water inlet of adapter

[0100] (93): First outlet of adapter

[0101] (94): Second outlet of adapter

[0102] (100):Check valve

Claims

1. A precision ceramic valve with two inlets and two outlets, comprising a rotating seat within a valve housing, below which are arranged a slider, a baffle, a movable valve plate, and a fixed valve plate stacked sequentially. A valve stem extending upwards through the valve housing is centrally mounted on the rotating seat, with its bottom actuating portion engaging with the slider. The slider and the rotating seat are respectively connected to the baffle and the movable valve plate. Operation of the valve stem, via the slider, causes the baffle to move horizontally, or after horizontal movement, the movable valve plate rotates via the rotating seat. This change in the alignment between the movable valve plate and the fixed valve plate allows for the opening and closing of water flow, or the adjustment of the hot and cold water mixing ratio and the outlet flow rate. Below the casing, a base is used to prevent the fixed valve plate, the movable valve plate, the baffle, the slider, and the rotating seat from falling out. This base has a water inlet chamber, in which a balancing valve is installed. The precision ceramic valve is placed in a pre-installed valve chamber in a water distribution valve seat. This water distribution valve seat has a cold water inlet channel, a hot water inlet channel, a first outlet channel, and a second outlet channel running outwards from the bottom of the valve chamber. The cold water inlet channel and the hot water inlet channel are used to connect to cold and hot water sources, respectively. Through the first outlet channel and the second outlet channel, they are connected to a water-using device. Thus, by operating the same precision ceramic valve, cold water, hot water, or a mixture of hot and cold water can be delivered to one of the water-using devices via the water distribution valve seat. The valve housing has an internal chamber with an upper port formed through a narrowed annular wall. The rotating seat, the slider, the baffle, the movable valve plate, and the fixed valve plate are sequentially placed into the chamber of the valve housing so that the valve stem can pass through the valve housing upwards via the upper port. The bottom end of the baffle has a groove formed upwards, and the movable valve plate has a first hole and a second hole. In the normal state when not in use, the groove of the baffle will avoid the first hole, so as to achieve the water shut-off effect that prevents both hot and cold water sources from flowing out. The fixed valve plate has a cold water flow hole, two hot water flow holes, a first water outlet hole, and a second water outlet hole. The two hot water flow holes are interconnected, allowing the cold water flow hole to be located on one side of the two hot water flow holes. The first water outlet hole and the second water outlet hole are located on the other side of the two hot water flow holes. When the fixed valve plate and the movable valve plate are stacked and in the water-off position, the cold water flow hole will be aligned with the first hole, while the two hot water flow holes, the first water outlet hole, and the second water outlet hole will avoid the first hole and the second hole, so that both the cold and hot water sources can be effectively blocked and cannot flow out from the precision ceramic valve through the water distribution valve seat. The base is provided with a cold water inlet, a hot water inlet, a first outlet, and a second outlet, and has a reserved inlet chamber. The cold water inlet and the hot water inlet are connected to the inlet chamber. When the rotating seat, the slider, the baffle, the movable valve plate, and the fixed valve plate, which are housed in the inlet chamber, are stacked in sequence, the fixed valve plate, the movable valve plate, the baffle, the slider, and the rotating seat are supported by the base through the valve housing. In addition to securing the fixed valve plate on the base, it can also... The cold water inlet, hot water inlet, first outlet, and second outlet of the base are aligned with the cold water flow hole, hot water flow hole, first outlet through hole, and second outlet through hole of the fixed valve plate, respectively. When the precision ceramic valve is placed in the valve chamber reserved in the water distribution valve seat, the cold water inlet, hot water inlet, first outlet, and second outlet are connected to the cold water inlet, hot water inlet, first outlet, and second outlet of the base, respectively.

2. The precision ceramic valve with two inlets and two outlets as described in claim 1, wherein, A limiting block protrudes from one side of the upper port. A neck is formed on the rotary seat with a narrowed diameter. The neck extends out from the upper port and has a toothed edge on its outer periphery. By using the extension of the neck, two toothed rings can be provided by the toothed edge to be locked after being fitted. By removing the two toothed rings upwards and refitting them, the temperature limiting angle can be adjusted according to actual usage requirements.

3. The precision ceramic valve with two inlets and two outlets as described in claim 1, wherein, The bottom end of the rotating seat is provided with a channel to accommodate the slider and the baffle, so that the slider and the baffle can be moved horizontally by the valve rod in the channel.

4. The precision ceramic valve with two inlets and two outlets as described in claim 1, wherein, The first hole and the second hole of the movable valve plate each have an outward expansion portion formed on one side of the hole edge. The outward expansion portion is recessed from bottom to top, which can be used to increase the coverage area of ​​the first hole and the second hole.

5. The precision ceramic valve with two inlets and two outlets as described in claim 1, wherein, The bottom surface of the fixed valve plate is recessed with a flow channel, allowing the two hot water flow holes to pass through the flow channel to form a connection.

6. The precision ceramic valve with two inlets and two outlets as described in claim 1, wherein, The base is formed by the upper seat and the lower seat being joined together, so that the cold water inlet, the hot water inlet, the first outlet and the second outlet can all be set at the relative positions of the upper seat and the lower seat at the same time, and the upper seat and the lower seat will be solidified by ultrasonic welding after being joined together.

7. The precision ceramic valve with two inlets and two outlets as described in claim 1, wherein, The precision ceramic valve utilizes an adapter to allow for the installation of a check valve within the valve chamber of the water distribution valve seat. The adapter includes a cold water inlet, a hot water inlet, a first outlet, and a second outlet. These connections allow for interconnection between the base and the water distribution valve seat. Each of the cold water inlet and hot water inlet contains a check valve, thus preventing backflow of water.

8. The precision ceramic valve with two inlets and two outlets as described in claim 7, wherein, The adapter is formed by the mating of an upper adapter and a lower adapter, so that the cold water inlet, the hot water inlet, the first outlet, and the second outlet of the adapter can all be located at the relative positions of the upper and lower adapters. After the upper and lower adapters are mated, they will be solidified by ultrasonic welding.

9. The precision ceramic valve with two inlets and two outlets as described in claim 1, wherein, The water distribution valve seat is embedded in the wall so that a water-using device can be connected downwards via the first water outlet, while another water-using device can be connected upwards via the second water outlet.

10. The precision ceramic valve with two inlets and two outlets as described in claim 9, wherein, One of the water-using devices is a water tap, while the other is a wall-mounted shower head.

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