TWI900402B - Precision ceramic valve with two water inlets and two water outlets - Google Patents

Abstract

A precision ceramic valve with two water inlets and two water outlets comprises a rotating seat mounted within a valve housing. A slider, a baffle, a movable valve disc, and a fixed valve disc are stacked in sequence within the valve housing below the rotating seat. A valve stem extending upward through the valve housing is mounted on the rotating seat hub, with a toggle at the bottom of the valve stem engaging the slider. The slider and the rotating seat are connected to the baffle and the movable valve disc, respectively. The valve stem can be operated to move the slider to translate the baffle, or to rotate the movable valve disc after translation via the rotating seat. A base is attached to the bottom of the valve housing, and the base is equipped with a water inlet chamber, in which a balancing valve is installed.

Description

Precision ceramic valve with two water inlets and two water outlets

This invention relates to a "two-inlet, two-outlet precision ceramic valve," specifically a precision ceramic valve that can be used to switch water sources for dual-use water equipment.

Water-using equipment usually has cold water and hot water to choose from. Warm water is obtained by mixing hot water with cold water, so that the cold water and hot water are mixed in equal proportions and then controlled to flow out. The mixing ratio of cold water and hot water can be adjusted as needed to achieve the required water temperature. The mixing control of cold water and hot water is mainly completed through the control of precision ceramic valves. However, as we know, a ceramic valve can only provide one type of water. When using the equipment, for example, if the same cold and hot water source is to supply water to two water-consuming devices simultaneously, a water distributor or a pull-type valve must be installed between the two water-consuming devices and the cold and hot water source pipes. This significantly increases the complexity of the entire water piping system. When using water, the user's hands must move between the two ceramic valves and the water distributor, or they may accidentally touch the pull-type valve, causing inconvenience.

With this in mind, the inventors of this invention conceived the idea and, drawing upon years of experience, devised a design. After extensive research, prototype testing, and numerous revisions and improvements, they ultimately launched the present invention.

It's common knowledge that a precision ceramic valve can only serve one type of water-using device. If the same cold and hot water source are to supply both devices simultaneously, a manifold or pull-off valve must be installed between the two devices and the cold and hot water source pipes. This significantly increases the complexity of the entire water piping system, a technical issue we aim to address.

The present invention discloses a precision ceramic valve with two water inlets and two water outlets. The precision ceramic valve is provided with a rotating seat in a valve housing. Below the rotating seat, a slide block, a baffle, a movable valve disc and a fixed valve disc are sequentially stacked inside the valve housing. The central assembly of the rotating seat has a valve rod that passes through the valve housing upwards. The toggle portion at the bottom of the valve rod is embedded with the slide block. The slide block and the rotating seat are respectively connected to the baffle plate and the movable valve disc. The valve rod can be operated through the slide block to drive the valve. The baffle moves horizontally, or after moving horizontally, the movable valve disc is driven to rotate by the rotating seat, so that the movable valve disc moves and the positional relationship with the fixed valve disc is changed to open and close the water, or change the mixing ratio of cold and hot water and the water flow rate. Under the valve shell, a base is used to prevent the fixed valve disc, the movable valve disc, the baffle, the slider and the rotating seat from falling out, and the base is provided with a water inlet chamber, a balancing valve is installed in the water inlet chamber, and the precision valve is installed in the water inlet chamber. When in use, the ceramic valve is placed in a valve chamber reserved by a water diversion valve seat. The water diversion valve seat has a cold water inlet, a hot water inlet, a first outlet and a second outlet that are connected from the bottom of the valve chamber to the outside. The cold water inlet and the hot water inlet are used to connect to cold and hot water sources. Through the first outlet and the second outlet, they are connected to a water-using device respectively. Then, through the operation of the same precision ceramic valve, cold water, hot water or mixed warm water can be discharged to one of the water diversion valve seats. Water is transported using a water supply device, wherein the valve housing has a chamber within it, with an upper port formed above it through a reduced diameter ring wall. The swivel seat, the slide, the baffle, the movable valve disc, and the fixed valve disc are sequentially placed into the chamber of the valve housing, so that the valve stem is allowed to pass upward out of the valve housing through the upper port. A groove is formed upwardly at the bottom end of the baffle, and the movable valve disc is penetrated by a first hole and a second hole. When not in use, the groove of the baffle avoids the first hole. A hole is formed to achieve the water-off effect that neither the cold water source nor the hot water source can be transferred and flowed out. The fixed valve disc is penetrated by 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 connected to each other, so that the cold water flow hole can be set between one side of the two hot water flow holes, and the first water outlet hole and the second water outlet hole are respectively set at the other side of the two hot water flow holes. When the fixed valve disc and the movable valve disc are overlapped and in the water-off position, the cold water will flow out. The circulation hole is aligned with the first hole, and the two hot water circulation holes, the first water outlet hole, and the second water outlet hole avoid the first hole and the second hole, so that both the cold and hot water sources can be effectively blocked and relatively cannot flow out from the precision ceramic valve through the water diversion valve seat. A cold water inlet, a hot water inlet, a first water outlet, and a second water outlet are provided on the base, and a water inlet chamber is reserved. The cold water inlet and the hot water inlet are connected to the water inlet chamber. When The rotating seat, the slide, the baffle, the movable valve disc, and the fixed valve disc contained in the chamber are stacked in sequence, so that when the valve housing and the base are combined, the fixed valve disc, the movable valve disc, the baffle, the slide, and the rotating seat are supported by the base, and the fixed valve disc is not only fixed on the base, but also the cold water inlet, the hot water inlet, the first water outlet, and the second water outlet of the base are respectively connected to the cold water inlet of the fixed valve disc. The water flow hole, the hot water flow hole, the first water outlet hole, and the second water outlet hole are aligned. When the precision ceramic valve is placed in the valve chamber reserved in the water diversion valve seat, the cold water inlet, the hot water inlet, the first water outlet, and the second water outlet are 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. This constitutes a two-inlet, two-outlet precision ceramic valve.

(1) The dual-inlet, dual-outlet precision ceramic valve of the present invention utilizes the same valve to control the use of two water-using appliances. Each valve also has the function of mixing cold and hot water during use. This eliminates the need for a manifold or a separate pull-off valve between the two water-using appliances and the cold and hot water source pipes, effectively simplifying the overall piping complexity and eliminating the worry of accidentally triggering the pull-off valve during water use, resulting in greater convenience.

(2) The dual-inlet, dual-outlet precision ceramic valve of the present invention utilizes the same valve to control the use of two water-using devices. Each valve also has the function of mixing hot and cold water during use. Therefore, when using water, the user does not need to manually move the two precision ceramic valves to switch between them. Simply turning the handles in opposite directions can quickly complete the process, saving time and effort.

(3) The dual-inlet and dual-outlet precision ceramic valve of the present invention is controlled by turning the valve stem upwards and rotating it, so that the needs of different consumers can be met through the flip-up design.

Part of this invention

(10): Valve housing

(11): Storage room

(12): Reduced diameter ring wall

(13): Upper port

(14): Limit block

(20): Rotating seat

(201): Neck

(202): Teeth

(203): Groove

(21): Valve stem

(211): Motion Department

(22): Tooth ring

(23): Spring

(24): Positioning pin

(30): Slider

(31):Block

(311): Groove

(40): Movable valve disc

(41): First hole

(411): External Expansion

(42): Second hole

(421): External Expansion

(50): Fixed valve disc

(51): Cold water flow hole

(52):Hot water flow hole

(521):Flow channel

(53): First water outlet hole

(54): Second water outlet hole

(60): Base

(601): The Senior Seat

(602):Get off your seat

(61):Cold water inlet

(62):Hot water inlet

(63): First water outlet

(64): Second water outlet

(65): Water inlet chamber

(70):Balancing valve

(80): Water diversion valve seat

(81): Valve chamber

(82): Cold water enters the water channel

(83): Hot water enters the water channel

(84): First water outlet

(85): Second water outlet

(90):Adapter

(901): Adapter seat

(902): Adapter seat bottom seat

(91): Adapter cold water outlet

(92): Adapter hot water outlet

(93): Adapter first outlet

(94): Adapter second outlet

(100):Check valve

Figure 1 is a three-dimensional assembly diagram of the present invention being used in a water diversion valve seat.

Figure 2 shows the present invention being placed in a water diversion valve.

Figure 3 is a three-dimensional exploded view of the present invention.

Figure 4 is a three-dimensional exploded view of the present invention from another angle.

Figure 5 is a plan view of the water diversion valve seat of the present invention.

Figure 6 is a plan view of the present invention when placed in a water diversion valve seat.

Figure 7 is a cross-sectional view of the present invention when installed in a water diversion valve.

Figure 8 is a cross-sectional view from another angle showing the present invention being placed in a water diversion valve seat.

Figure 9 is the first diagram showing the hole alignment when shutting off the water in the present invention.

Figure 10 is the second diagram of the hole alignment when shutting off the water in the present invention.

Figure 11 shows the present invention in the lifted position when in use.

Figure 12 shows the baffle of the present invention being displaced.

Figure 13 shows the alignment of the holes for mixing cold and hot water and then introducing it into a water-using device.

Figure 14 is a diagram showing the present invention supplying water to a water-using device.

Figure 15 shows the alignment of the holes for mixing cold and hot water and then introducing it into another water-using device.

Figure 16 shows the state of the present invention supplying water to another water-using device.

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

[Figure 18] is a three-dimensional exploded view of another preferred embodiment of the present invention.

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

Figure 20 is a cross-sectional view of another preferred embodiment of the present invention being used within a water diversion valve.

To help you, the Review Committee, gain a deeper understanding of the purpose, features, and efficacy of this invention, please provide the following detailed description with the accompanying diagrams:

Generally, according to the present invention, please refer to Figures 1 to 10. The present invention provides a two-inlet and two-outlet precision ceramic valve. The precision ceramic valve is provided with a rotating seat (20) in a valve shell (10). Below the rotating seat (20), a slide block (30), a baffle (31), a movable valve disc (40) and a valve body (50) are provided in sequence inside the valve shell (10). ) and a fixed valve disc (50), the central assembly of the rotating seat (20) has a valve rod (21) that passes through the valve housing (10) upwards, and the sliding block (30) is embedded with the movable valve disc (40) by the movable portion (211) at the bottom end of the valve rod (21). Then, the movable valve disc (40) is connected to the sliding block (30) and the rotating seat (20) respectively, so that the valve rod (21) can be opened and closed. The valve rod (21) is operated to drive the baffle (31) to translate through the slider (30), or after translation, the movable valve disc (40) is driven to rotate through the rotating seat (20), so that the movable valve disc (40) is moved to change the positional relationship with the fixed valve disc (50) to open and close the water, or change the mixing ratio of cold and hot water and the water flow rate. Under the valve housing (10), a base (60) is used to prevent the fixed valve disc (50), the movable valve disc (40), the baffle (31), the slider (30) and the rotating seat (20) from falling out, and the base (60) is provided with a water inlet chamber (65), in which a balance is installed. The precision ceramic valve is placed in a valve chamber (81) reserved by a water diversion valve seat (80) when in use. The water diversion valve seat (80) has a cold water inlet (82), a hot water inlet (83), a first outlet (84) and a second outlet (85) extending from the bottom of the valve chamber (81). The cold water inlet (82) and the hot water inlet (83) are used to connect to cold and hot water sources. The first outlet (84) and the second outlet (85) are connected to a water device respectively. By operating the precision ceramic valve, cold water, hot water or mixed warm water can be transported to one of the water devices through the water diversion valve seat (80). (10) has a chamber (11) inside, and an upper port (13) is formed on the upper side through a reduced diameter ring wall (12). The rotating seat (20), the slide block (30), the baffle (31), the movable valve disc (40), and the fixed valve disc (50) are sequentially placed in the chamber (11) of the valve housing (10), so that the valve rod (21) can be provided to pass through the valve housing (10) upward through the upper port (13). A groove (311) is formed upward at the bottom end of the baffle (31). A first hole (41) and a second hole (42) are penetrated on the movable valve disc (40). In the normal state when not in use, the groove (311) of the baffle (31) will avoid the first hole (41) to To achieve the water shut-off effect in which neither the cold water source nor the hot water source can be transferred and flowed out, the fixed valve disc (50) is penetrated by 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). The two hot water flow holes (52) are mutually conductive, so that the cold water flow hole (51) can be arranged between one side of the two hot water flow holes (52), and the first water outlet hole (53) and the second water outlet hole (54) are respectively arranged at the other side of the two hot water flow holes (52). When the fixed valve disc (50) and the movable valve disc (40) are overlapped and in the water shut-off position, the cold water flow hole (51) and the first hole (41) are aligned, and the two hot water flow holes (52), the first water outlet hole (53), and the second water outlet hole (54) will avoid the first hole (41) and the second hole (42), so that both the cold and hot water sources can be effectively blocked and relatively cannot flow out from the precision ceramic valve through the water diversion 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 The movable valve disc (40) and the fixed valve disc (50) are stacked in sequence so that when the fixed valve disc (50), the movable valve disc (40), the baffle (31), the slide block (30) and the rotating seat (20) are supported by the base (60), the fixed valve disc (50) can be fixed on the base (60) and 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) can be respectively connected to the cold water flow hole (51), the hot water flow hole (52) and the first water outlet hole (53) of the fixed valve disc (50). ), the second water outlet through hole (54) is aligned, and when the precision ceramic valve is placed in the valve chamber (81) reserved by the water diversion valve seat (80), the cold water inlet (82), the hot water inlet (83), the first outlet (84), and the second outlet (85) can respectively form direct or indirect conduction with the cold water inlet (61), the hot water inlet (62), the first outlet (63), and the second 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 diversion valve seat 80 through the balancing valve 70).

The present invention provides a precision ceramic valve with two water inlets and two water outlets, wherein a limit block (14) is protruded from one side of the upper port (13), and a neck (201) is formed on the upper diameter of the rotating seat (20). The neck (201) passes through the upper port (13), and a tooth edge (202) is provided on the outer periphery of the neck (201). By passing through the neck (201), two tooth rings (22) can be provided by the tooth edge (202) to be fixed after being mounted. By removing the two tooth rings (22) upward and then re-mounting them, the temperature limit angle can be adjusted according to actual use requirements.

The present invention provides a precision ceramic valve with two water inlets and two water outlets, wherein a groove (203) is provided at the bottom end of the rotating seat (20), and the groove (203) is used to accommodate the slider (30) and the baffle (31), so that the slider (30) and the baffle (31) can be driven by the valve rod (21) to move in the groove (203).

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

The present invention provides a precision ceramic valve with two water inlets and two water outlets, wherein the first hole (41) and the second hole (42) of the movable valve disc (40) are both formed with an expansion portion (411) (421) on one side of the hole edge. The expansion portion (411) (421) is recessed from bottom to top to increase the coverage range of the first hole (41) and the second hole (42).

The present invention provides a precision ceramic valve with two water inlets and two water outlets, wherein a flow channel (521) is recessed on the bottom surface of the fixed valve disc (50), allowing the two hot water flow holes (52) to be connected through the flow channel (521).

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

The present invention provides a precision ceramic valve with two water inlets and two water outlets, wherein the upper seat (601) and the lower seat (602) are aligned and then ultrasonically solidified.

The present invention provides a precision ceramic valve with two water inlets and two water outlets, wherein the precision ceramic valve is adapted by using a transfer seat (90) and can be used with a check valve (100) and then smoothly installed in the valve chamber (81) of the water diversion valve seat (80). The transfer seat (90) is provided with a transfer seat cold water inlet (91), a transfer seat hot water inlet (92), a transfer seat first water outlet (93) and a transfer seat second water outlet (94), so that the base (60) and the water diversion valve seat ( 80) can be connected to each other through the adapter seat cold water inlet (91), the adapter seat hot water inlet (92), the adapter seat first water outlet (93) and the adapter seat second water outlet (94). The adapter seat cold water inlet (91) and the adapter seat hot water inlet (92) are each placed with a check valve (100) (please refer to Figures 17 to 20 at the same time). Through the installation of the check valve (100), the precision ceramic valve can also have the effect of preventing water from flowing back.

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

The present invention provides a precision ceramic valve with two water inlets and two water outlets, wherein the upper adapter seat (901) and the lower adapter seat (902) are aligned and then ultrasonically solidified.

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

In actual use, the precision ceramic valve of the present invention is installed in the valve chamber (81) of the water diversion valve seat (80), and the valve rod (21) is connected to a handle so that the water diversion valve seat (80) can select one of the water-using devices as the water source supply through the operation of the handle, and can also adjust the mixing ratio of cold and hot water during the water source supply to obtain an appropriate water temperature; when one of the water-using devices is to be used, the handle is first pulled up so that the valve rod (21) drives the baffle (31) to move horizontally through the slider (30), so that the groove (311) can simultaneously conduct the first After the hole (41) and the second hole (42) (please see FIG. 11 and FIG. 12 at the same time) are turned to form a complete water flow channel, the handle is rotated in one direction. After the rotation, the valve rod (21) drives the rotating seat (20) and the movable valve disc (40) to rotate together, so that the first hole (41), the second hole (42) and 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 from the cold water inlet (82), the balancing valve (70), the cold water inlet (61) and the cold water flow hole (51) can pass through the first hole (41) ), the continuous transfer of the groove (311) and the second hole (42) flows from the first water outlet hole (53) and the first water outlet (63) through the first water outlet channel (84) of the water diversion valve seat (80) into one of the water-using devices, and the rotation of the movable valve disc (40) is not enough to allow the first hole (41) and the second hole (42) to align with the second water outlet hole (54), so that neither cold water nor hot water will be sent from the second water outlet hole (54) through the water diversion valve seat (80) into the other water-using device; and in the water supply process of the water-using device, if warm water or even hot water alone is to be used at the same time, it is possible By continuously rotating the handle, the first hole (41) can gradually overlap with the hot water flow hole (52). The overlap size can be adjusted according to the rotation amplitude. When the first hole (41) is connected to the cold water flow hole (51) and the hot water flow hole (52) at the same time (please refer to Figures 13 and 14 at the same time), the cold and hot water will be mixed to form warm water for use. When the handle is rotated to the maximum stroke position, the first hole (41) completely avoids the cold water flow hole (51), and only hot water can be used. When the water needs to be turned off, the handle is turned back and pressed down.

Similarly, when using, if the water source is to be transported 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) can be aligned with the cold water flow hole (51) and the second water outlet hole (54) at the same time, or aligned with the cold water flow hole (51), the other hot water flow hole (52) and the second water outlet hole (54) at the same time (please see Figure 15 and Figure 16 at the same time), or aligned with the hot water flow hole (52) and the second water outlet hole (54) at the same time, so that the cold water and the mixed warm water can be transported to the hot water source. Alternatively, the hot water can be transferred through the second water outlet hole (54) and sent from the second water outlet (64) to the other water-using device through the second water outlet channel (85). The two gear rings (22) are used to stop the two ends of the limit block (14) when the valve rod (21) drives the rotating seat (20) to rotate in two directions. This can prevent the hot water from being directly turned to the maximum at the moment of opening, which may easily cause burns to personnel. By changing the separation angle of the two gear rings (22), the maximum outlet temperature of the hot water can be appropriately adjusted according to personal needs.

The above-mentioned two-inlet and two-outlet precision ceramic valve has the following advantages: (1) It can use the same precision ceramic valve to control the use of the two water-using devices. When using the control, each 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 source pipes, or set up a pull head separately, so as to effectively simplify the complexity of the entire pipe. There is no need to worry about accidentally touching the pull head when using water, which is more convenient to use; (2) It uses The same precision ceramic valve can be used to control the use of the two water-using devices. When using the valve, each device also has the function of mixing cold and hot water. Therefore, when using water, the user does not need to move the two precision ceramic valves by hand. The user can quickly complete the process by simply turning the handle in two opposite directions, which can save time and effort. (3) The precision ceramic valve is controlled by turning the valve rod (21) so that the needs of different consumers can be met through the flip-up design.

However, the above is merely a preferred embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. In other words, all equivalent changes and modifications made within the scope of the patent application for this invention should still fall within the scope of this invention patent.

(10): Valve housing

(11): Storage room

(12): Reduced diameter ring wall

(13): Upper port

(14): Limit block

(20): Rotating seat

(201): Neck

(202): Teeth

(203): Groove

(21): Valve stem

(211): Motion Department

(22): Tooth ring

(23): Spring

(24): Positioning pin

(30): Slider

(31):Block

(311): Groove

(40): Movable valve disc

(41): First hole

(411): External Expansion

(42): Second hole

(421): External Expansion

(50): Fixed valve disc

(51): Cold water flow hole

(52):Hot water flow hole

(521):Flow channel

(53): First water outlet hole

(54): Second water outlet hole

(60): Base

(601): The Senior Seat

(602):Get off your seat

(61):Cold water inlet

(62):Hot water inlet

(63): First water outlet

(64): Second water outlet

(65): Water inlet chamber

(70):Balancing valve

Claims (10)

A precision ceramic valve with two water inlets and two water outlets is provided with a rotating seat in a valve housing. Below the rotating seat, a slide block, a baffle, a movable valve disc and a fixed valve disc are arranged in sequence inside the valve housing. The central assembly of the rotating seat has a valve rod that passes through the valve housing upward. The sliding part at the bottom of the valve rod is embedded with the slide block, and the slide block and the rotating seat are respectively connected to the baffle plate and the movable valve disc, so that water can pass through the valve. The operation of the rod drives the baffle to translate through the slider, or after translation, the movable valve disc is rotated by the rotating seat, so that the movable valve disc can be used to change the positional relationship with the fixed valve disc after movement to open and close the water, or change the mixing ratio of cold and hot water and the water flow rate. Under the valve housing, a base is used to prevent the fixed valve disc, the movable valve disc, the baffle, the slider and the rotating seat from falling out, and the base is used to prevent the fixed valve disc, the movable valve disc, the baffle, the slider and the rotating seat from falling out. The seat is provided with a water inlet chamber, in which a balancing valve is installed. The precision ceramic valve is placed in a valve chamber reserved by a water diversion valve seat when in use. The water diversion valve seat has a cold water inlet channel, a hot water inlet channel, a first water outlet channel and a second water outlet channel extending outward from the bottom surface 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, and are connected to a water-using device through the first water outlet channel and the second water outlet channel respectively. By operating the same precision ceramic valve, cold water, hot water, or mixed warm water can be delivered to one of the water-using devices via the water diversion valve seat. The valve housing comprises a chamber with an upper port formed at the top by a reduced diameter ring wall. The rotating seat, the slide, the baffle, the movable valve disc, and the fixed valve disc are sequentially placed within the chamber of the valve housing, allowing the valve stem to pass upward and out of the valve housing via the upper port. A groove is formed upward from the bottom end of the baffle, and a first hole and a second hole are formed through the movable valve disc. When not in use, the groove of the baffle avoids the first hole, achieving the water shut-off effect of preventing both cold and hot water from diverting and flowing out. The fixed valve disc is perforated with 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 between the two hot water flow holes on one side, while the first and second water outlet holes are located on the other side of the two hot water flow holes. When the fixed valve disc and the movable valve disc 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 hole, and the second water outlet hole avoid the first and second holes, effectively blocking both cold and hot water sources and preventing them from flowing out of the precision ceramic valve through the water diversion 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. The cold water inlet and the hot water inlet are electrically connected to the water inlet chamber. When the rotating seat, the slider, the baffle, the movable valve disc, and the fixed valve disc are sequentially stacked within the chamber, the valve housing and the base are combined to provide support for the fixed valve disc, the movable valve disc, the baffle, the slider, and the rotating seat. In addition to securing the fixed valve disc to the base, the fixed valve disc can also be secured. The cold water inlet, hot water inlet, first water outlet, and second water outlet of the base are aligned with the cold water flow hole, hot water flow hole, first water outlet hole, and second water outlet hole of the fixed valve disc, respectively. When the precision ceramic valve is placed in the valve chamber reserved in the water diversion valve seat, the cold water inlet, hot water inlet, first water outlet, and second water outlet are electrically connected to the cold water inlet, hot water inlet, first water outlet, and second water outlet of the base, respectively. For example, the two-inlet, two-outlet precision ceramic valve described in claim 1 has a stopper protruding from one side of the upper port, and a neck portion is formed on the swivel seat at a reduced diameter. The neck portion extends through the upper port, and a toothed edge is provided on the outer periphery of the neck portion. The protrusion of the neck portion allows two tooth rings to be provided with the toothed edge for locking after installation. By removing the two tooth rings upward and reinstalling them, the temperature limit angle can be adjusted according to actual usage requirements. The two-inlet, two-outlet precision ceramic valve as described in claim 1, wherein a groove is provided at the bottom end of the rotating seat to accommodate the slider and the baffle, allowing the slider and the baffle to be driven by the valve stem to translate in the groove. In the two-inlet, two-outlet precision ceramic valve as described in claim 1, an expansion portion is formed on one side edge of each of the first and second holes of the movable valve disc. The expansion portion is recessed upward from the bottom to increase the coverage area of the first and second holes. The two-inlet and two-outlet precision ceramic valve as described in claim 1, wherein the bottom surface of the fixed valve disc is recessed with a flow channel, allowing the two hot water flow holes to be connected through the flow channel. The two-inlet, two-outlet precision ceramic valve described in claim 1, wherein the base is formed by an upper seat and a lower seat mating together, so that the cold water inlet, the hot water inlet, the first outlet, and the second outlet can all be simultaneously located at opposing positions of the upper and lower seats, and after the upper and lower seats are mated together, they are ultrasonically welded. The precision ceramic valve with two water inlets and two water outlets as described in claim 1, wherein the precision ceramic valve is adapted to be used with a check valve by means of an adapter, and then smoothly installed in the valve chamber of the water diversion valve seat. The adapter seat is provided with an adapter cold water inlet, an adapter hot water inlet, an adapter first water outlet, and an adapter second water outlet, so that the base and the water diversion valve seat can be interconnected and electrically connected through the adapter cold water inlet, the adapter hot water inlet, the adapter first water outlet, and the adapter second water outlet. The check valve is placed in each of the adapter cold water inlet and the adapter hot water inlet. Through the installation of the check valve, the precision ceramic valve can also prevent water from flowing back. The two-inlet, two-outlet precision ceramic valve described in claim 7, wherein the adapter is formed by mating an upper adapter and a lower adapter, so that the cold water inlet, hot water inlet, first water outlet, and second water outlet of the adapter can all be simultaneously located at opposing positions of the upper and lower adapters. Furthermore, after the upper and lower adapters are mated, they are ultrasonically bonded. The two-inlet, two-outlet precision ceramic valve as described in claim 1, wherein the water diversion valve seat is embedded in the wall, so that the first outlet is connected downwardly to one of the water-using devices, and the second outlet is connected upwardly to another of the water-using devices. A precision ceramic valve with two water inlets and two water outlets as described in claim 9, wherein one of the water-using devices is a water faucet and the other water-using device is a wall-mounted shower head.