A valve core and faucet

Abstract

The utility model provides a kind of valve core and faucet, the valve core includes static valve piece and dynamic valve piece;The static valve piece includes first water inlet hole, second water inlet hole, first water outlet hole and second water outlet hole, the dynamic valve piece includes mixed water inlet hole, mixed water outlet hole and mixed water channel, the mixed water channel connects the mixed water inlet hole and mixed water outlet hole;The dynamic valve piece abuts the static valve piece, the dynamic valve piece can be moved relative to the static valve piece, to can make the mixed water inlet hole connect the first water inlet hole and / or second water inlet hole;In first connection position, the mixed water outlet hole connects the first water outlet hole, in second connection position, the mixed water outlet hole connects the second water outlet hole, in water stop position, the mixed water outlet hole corresponds the water stop wall surface of static valve piece.The dynamic valve piece is equipped with special water stop position, makes mixed water outlet hole correspond the water stop wall surface of static valve piece, realizes cut-off.

Description

Technical Field

[0001] This utility model relates to a valve core and a faucet. Background Technology

[0002] Currently, the sensor-operated automatic faucets widely used in public and some residential bathrooms mostly employ a mature and standardized single-handle hot and cold water mixing valve core as the basic regulating unit for their water flow control structure. The internal fluid passage of this type of valve core is typically preset and maintained in a "normally open" default state. Without external control intervention, the valve core itself does not have the function of actively cutting off water flow; when the water source has pressure at the valve core inlet, the water flow can flow relatively freely through the mixing chamber inside the valve core, adjusting the ratio of hot and cold water.

[0003] To achieve automated opening and closing control, sensor faucets place the sensor control device (typically including an infrared sensor, control circuit board, and actuators such as a solenoid valve) in the pipe after the water outlet path of the single-handle mixing valve and before the final outlet. Under normal conditions, water flows freely through the valve in the "normally open" position. When the sensor (e.g., an infrared sensor) detects a user's hand or object entering its effective sensing area, the control unit immediately issues a command to open the solenoid valve, allowing water to flow from the outlet. Conversely, when the sensing signal disappears, the control unit commands the solenoid valve to close, blocking the water flow.

[0004] However, this structure has the following drawback: the faucet's water flow function depends on the normal operation of the downstream sensing and control device (electronically controlled actuator, such as a solenoid valve). Once this sensing and control device malfunctions for various reasons (e.g., the infrared sensor fails to detect movement, the control circuit board is damaged, the solenoid valve coil burns out or the valve core is stuck, or the external power supply is interrupted), regardless of whether the upstream single-handle mixing valve core itself is functioning properly and is in a "normally open" state, the water flow will be firmly blocked before the outlet by this failed downstream sensing and control device, or if the solenoid valve is in an open state due to failure, water will flow continuously from the outlet.

[0005] An improved valve core design has emerged on the market—a valve core with a "two-inlet, two-outlet" structure. This type of valve core typically has two inlets (e.g., cold and hot water inlets) and two independent outlets. One outlet (which can be called the first outlet) is connected to the first outlet path, which is usually controlled by a sensor (e.g., a solenoid valve) to achieve automatic water dispensing. The other outlet (the second outlet) is connected to the second outlet path, and the opening and closing of this path is directly controlled by the valve core's own mechanical operation (e.g., rotating a handle).

[0006] While the original design of this "two-in, two-out" valve core was intended to allow users to manually control the second water outlet even when the solenoid valve fails (e.g., as a manual backup mode), it has a inherent flaw: the valve core can only control one of the two outlets to be in a flowing state, or switch the outlet path, but cannot simultaneously close both outlets, meaning it cannot achieve a "completely stopped" state for the entire faucet. Specifically, when the first outlet path controlled by the solenoid valve needs maintenance or replacement due to a malfunction (e.g., the solenoid valve is stuck in the closed or open position), the user or maintenance personnel might switch the valve core to the manually controlled second outlet path. However, in this state, because the valve core cannot close the second outlet, water will continue to flow from the second outlet. This means that during solenoid valve maintenance, the faucet cannot actually be completely shut off, and water continues to flow from the second outlet. Utility Model Content

[0007] To solve the above-mentioned technical problems, this utility model provides a valve core, which includes a stationary valve plate and a moving valve plate; the stationary valve plate includes a first water inlet hole, a second water inlet hole, a first water outlet hole and a second water outlet hole, and the moving valve plate includes a mixing water inlet hole, a mixing water outlet hole and a mixing water channel, wherein the mixing water channel connects the mixing water inlet hole and the mixing water outlet hole;

[0008] The movable valve plate abuts against the stationary valve plate, and the movable valve plate can move relative to the stationary valve plate so that the mixing inlet hole can connect to the first inlet hole and / or the second inlet hole.

[0009] The moving valve plate also includes a first connected position, a second connected position, and a water-stopping position relative to the stationary valve plate. When in the first connected position, the mixing outlet is connected to the first outlet. When in the second connected position, the mixing outlet is connected to the second outlet. When in the water-stopping position, the mixing outlet corresponds to a water-stopping wall surface of the stationary valve plate.

[0010] In a preferred embodiment, the first water inlet and the second water inlet are arranged at circumferential intervals along the stationary valve plate;

[0011] The first and second water outlets are arranged at radial intervals along the stationary valve plate;

[0012] The moving valve plate can rotate circumferentially relative to the stationary valve plate to change the ratio of the mixing inlet hole connecting to the first inlet hole and the second inlet hole.

[0013] The moving valve plate can move radially relative to the stationary valve plate to change the connection of the mixing outlet hole to the first outlet hole or the second outlet hole.

[0014] In a preferred embodiment, the first water outlet and the water-stop wall are arranged at circumferential intervals along the static valve plate;

[0015] When the mixing outlet is connected to the first outlet, the moving valve plate can rotate circumferentially relative to the stationary valve plate so that the mixing outlet corresponds to the water-stopping wall surface.

[0016] In a preferred embodiment, the first water inlet, the second water inlet, the first water outlet, and the water-stopping wall are arranged around the second water outlet.

[0017] In a preferred embodiment, it also includes a housing, a valve shaft assembly, and a base;

[0018] The stationary valve plate and the moving valve plate are disposed inside the housing. The base is fixedly connected to the housing. The stationary valve plate is fixedly connected to the base. The valve shaft assembly is connected to the moving valve plate to drive the moving valve plate to move.

[0019] In a preferred embodiment, the valve shaft assembly includes an operating lever for driving the drive seat to move; the operating lever includes a first operating position, a second operating position, and a third operating position. When in the first operating position, the movable valve plate is in a first energized position; when in the second operating position, the movable valve plate is in a second energized position; and when in the third operating position, the movable valve plate is in a water-stopped position. When in the first and third operating positions, the axis of the operating lever coincides with or is parallel to the axis of the housing; when in the second operating position, the axis of the operating lever forms a certain angle with the axis of the housing.

[0020] In a preferred embodiment, the valve shaft assembly further includes a drive seat and a rotating seat, the drive seat being fixedly connected to the movable valve plate, the rotating seat being rotatably connected to the housing, the drive seat including a receiving groove, one end of the operating rod extending movably into the receiving groove, and the operating rod also being oscillatingly connected to the rotating seat.

[0021] In a preferred embodiment, the base is further provided with four openings that are respectively connected to the first water inlet, the second water inlet, the first water outlet and the second water outlet. The valve core also includes an inner sealing ring disposed between the stationary valve plate and the base. The inner sealing ring extends circumferentially around the first water inlet, the second water inlet, the first water outlet and the second water outlet.

[0022] The valve core also includes an outer sealing ring disposed on the outside of the base. The outer sealing ring extends circumferentially around the four openings, and the height of the outer sealing ring is more than 1.5 times the depth of the outer groove of the base.

[0023] This utility model also provides a faucet, characterized in that it includes the valve core.

[0024] In a preferred embodiment, the faucet includes a faucet body and a sensing component. The sensing component includes a sensing mechanism and a solenoid valve. The valve core is disposed in the faucet body. The faucet also includes a first water outlet and a second water outlet. The first water outlet is connected to the first water outlet hole, and the second water outlet is connected to the second water outlet hole. The solenoid valve is disposed in the first water outlet to control the opening and closing of the first water outlet.

[0025] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0026] 1. The moving valve plate also includes a first connected position, a second connected position, and a stop position relative to the stationary valve plate. In the first connected position, the mixing outlet is connected to the first outlet; in the second connected position, the mixing outlet is connected to the second outlet; and in the stop position, the mixing outlet corresponds to a stop surface of the stationary valve plate. The moving valve plate has a dedicated stop position, ensuring the mixing outlet precisely aligns with the stop surface of the stationary valve plate, thus achieving flow interruption. Regardless of whether the sensing module (solenoid valve) is faulty, the user can move the moving valve plate to the stop position to forcibly close all water outlet passages, eliminating the risk of "unable to stop water during maintenance" or "continuous water flow during malfunction." Furthermore, the valve core can still be used before user maintenance, maintaining the integrity of the valve core's function.

[0027] 2. When the operating lever is in the first operating position (sensor mode) and the third operating position (completely stopped), the axis of the operating lever always coincides with the axis of the housing, with no angular deviation in appearance. In case of solenoid valve malfunction requiring maintenance, the user can rotate the operating lever to the third position (stopped) without revealing any equipment abnormality. Coaxial rotation directly reaches the stop position, meeting the core need of users in public places for quick and discreet troubleshooting. Visually, it is indistinguishable from a normal sensor faucet, achieving a "disguised as intact" state and avoiding panic or malicious damage. In the second operating position (valve core controls water flow), only in manual mode does the operating lever need to be moved to create an angle; this physical difference prevents accidental intrusion by the user. Attached Figure Description

[0028] Figure 1 This is an exploded view of the valve core in a preferred embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the stationary valve plate in a preferred embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the moving valve plate in a preferred embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the base in a preferred embodiment of the present invention;

[0032] Figure 5 This is a cross-sectional view of the valve core in a preferred embodiment of the present invention, showing the connection between the mixing outlet and the first outlet.

[0033] Figure 6 This is a cross-sectional view of the valve core in a preferred embodiment of the present invention, showing the connection between the mixing outlet and the second outlet.

[0034] Figure 7 This is a schematic diagram showing the position of the moving valve plate relative to the stationary valve plate in a preferred embodiment of the present invention. At this time, the mixing inlet hole is connected to the first inlet hole and the second inlet hole, and the mixing outlet hole is connected to the first outlet hole, and is in the first connected position.

[0035] Figure 8 This is a schematic diagram showing the position of the moving valve plate relative to the stationary valve plate in a preferred embodiment of the present invention. At this time, the mixing inlet hole is only connected to the second inlet hole, and the mixing outlet hole is connected to the first outlet hole and is in the first connected position.

[0036] Figure 9 This is a schematic diagram showing the position of the moving valve plate relative to the stationary valve plate in a preferred embodiment of the present invention. At this time, the mixing inlet hole is only connected to the first inlet hole, and the mixing outlet hole corresponds to the water-stopping wall and is in the water-stopping position.

[0037] Figure 10 This is a schematic diagram showing the position of the moving valve plate relative to the stationary valve plate in a preferred embodiment of the present invention. At this time, the mixing inlet hole is connected to the first inlet hole and the second inlet hole, and the mixing outlet hole is connected to the second outlet hole, and is in the second connected position.

[0038] Figure 11 This is a schematic diagram showing the position of the moving valve plate relative to the stationary valve plate in a preferred embodiment of the present invention. At this time, the mixing inlet hole is only connected to the first inlet hole, and the mixing outlet hole is connected to the second outlet hole, and is in the second connected position.

[0039] Figure 12 This is a schematic diagram showing the position of the moving valve plate relative to the stationary valve plate in a preferred embodiment of the present invention. At this time, the mixing inlet hole is only connected to the second inlet hole, and the mixing outlet hole is connected to the second outlet hole and is in the second connected position.

[0040] Figure 13 This is a schematic diagram of a simple replacement of the moving valve plate in this utility model. The shape of the mixing inlet hole is changed so that when the moving valve plate moves relative to the stationary valve plate, the mixing inlet hole can be connected to the second inlet hole only, and the mixing outlet hole is connected to the first outlet hole and is in the first connected position.

[0041] Figure 14 for Figure 13 The diagram shows the position of the moving valve plate relative to the stationary valve plate. At this time, the mixing inlet hole is only connected to the second inlet hole, and the mixing outlet hole is connected to the first outlet hole, and is in the first connected position.

[0042] Figure 15 for Figure 13 The diagram shows the position of the moving valve plate relative to the stationary valve plate. At this time, the mixing inlet hole is only connected to the first inlet hole, and the mixing outlet hole corresponds to the water-stopping wall and is in the water-stopping position.

[0043] Figure 16 This is a three-dimensional schematic diagram of the faucet in a preferred embodiment of the present invention. Detailed Implementation

[0044] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0045] See Figures 1-15 A valve core includes a housing 1, a base 2, a stationary valve plate 3, a moving valve plate 4, and a valve shaft assembly 5. The housing 1 has a cylindrical structure and defines a receiving space 11, where the stationary valve plate 3 and the moving valve plate 4 are both disposed. The housing 1 includes an upper opening 12 and a lower opening 13, with the base 2 fixedly connected to the lower opening 13 to close it. The stationary valve plate 3 is fixedly connected to the base 2. In this embodiment, the stationary valve plate 3 has a notch 31 on its periphery, and the base 2 has a protrusion 21 on its periphery, the protrusion 21 correspondingly fitting into the notch 31. The base 2 and the housing 1 are connected by a snap-fit ​​connection.

[0046] The stationary valve plate 3 includes a first water inlet 32, a second water inlet 33, a first water outlet 34, and a second water outlet 35. The base 2 includes four openings 22 corresponding to the first water inlet 32, the second water inlet 33, the first water outlet 34, and the second water outlet 35. The valve core also includes an inner sealing ring 24 disposed between the stationary valve plate 3 and the base 2. The inner sealing ring 24 extends circumferentially around the first water inlet 32, the second water inlet 33, the first water outlet 34, and the second water outlet 35. The valve core also includes an outer sealing ring 25 disposed on the outer groove 23 on the outer side of the base 2. The outer sealing ring 25 extends circumferentially around the four openings 22. The height of the outer sealing ring 25 is more than 1.5 times the depth of the outer groove 23 of the base 2.

[0047] The movable valve plate 4 includes a mixing inlet hole 41, a mixing outlet hole 42, and a mixing water channel 43, wherein the mixing water channel 43 connects the mixing inlet hole 41 and the mixing outlet hole 42; the movable valve plate 4 abuts against the stationary valve plate 3, and the movable valve plate 4 is movable relative to the stationary valve plate 3 so that the mixing inlet hole 41 can connect to the first inlet hole 32 and / or the second inlet hole 33; the movable valve plate 4 also includes a first connected position, a second connected position, and a water-stopping position relative to the stationary valve plate 3. When in the first connected position, the mixing outlet hole 42 connects to the first outlet hole 34; when in the second connected position, the mixing outlet hole 42 connects to the second outlet hole 35; and when in the water-stopping position, the mixing outlet hole 42 corresponds to a water-stopping wall surface 36 of the stationary valve plate 3.

[0048] The valve shaft assembly 5 is connected to the moving valve plate 4 and extends at least from the upper opening 12 of the housing 1. The valve shaft assembly 5 can drive the moving valve plate 4 to move in order to switch the position of the moving valve plate 4.

[0049] The position of the moving valve plate 4 relative to the stationary valve plate 3 changes, which allows the water coming in from the first water inlet hole 32 and the second water inlet hole 33 to mix and form mixed water, which then flows out from the mixed water outlet hole 42. The mixed water outlet hole 42 can correspond to the first water outlet hole 34, the second water outlet hole 35 and the water-stopping wall, so as to realize the water outlet from the first water outlet hole 34, the water outlet from the second water outlet hole 35 and the water stop.

[0050] In this embodiment, the first water inlet 32 ​​and the second water inlet 33 are arranged circumferentially around the stationary valve plate 3; the first water outlet 34 and the second water outlet 35 are arranged radially around the stationary valve plate 3; the movable valve plate 4 can rotate circumferentially relative to the stationary valve plate 3 to change the ratio in which the mixing water inlet 41 connects to the first water inlet 32 ​​and the second water inlet 33; the movable valve plate 4 can move radially relative to the stationary valve plate 3 to change the ratio in which the mixing water outlet 42 connects to the first water outlet 34 or the second water outlet 35. During operation, the circumferential rotation of the movable valve plate 4 relative to the stationary valve plate 3 can control the ratio in which the first mixing water inlet 41 connects to the first water inlet 32 ​​and the second water inlet 33. When the first water inlet 32 ​​and the second water inlet 33 are respectively connected to hot water and cold water, the ratio in which the first water inlet 32 ​​and the second water inlet 33 connect to the mixing water inlet 41 can control the temperature of the mixed water. When the moving valve plate 4 moves radially relative to the stationary valve plate 3, it can drive the mixing outlet 42 to connect to the first outlet 34 or the second outlet 35.

[0051] The first water outlet 34 and the water-stopping wall 36 are arranged circumferentially along the stationary valve plate 3. When the mixing water outlet 42 is connected to the first water outlet 34, the moving valve plate 4 can rotate circumferentially relative to the stationary valve plate 3 so that the mixing water outlet 42 corresponds to the water-stopping wall 36. At this time, the valve core stops the water flow.

[0052] In this embodiment, the first water inlet 32, the second water inlet 33, the first water outlet 34, and the water-stopping wall 36 are arranged around the second water outlet 35. The first water inlet 32, the second water inlet 33, and the first water outlet 34 extend along the circumference of the static valve plate 3 in a generally arc shape, and the second water outlet 35 is circular and is located approximately at the center of the static valve plate 3.

[0053] The valve shaft assembly 5 includes an operating lever 51, which drives the drive seat 52 to move. The operating lever 51 has a first operating position, a second operating position, and a third operating position. When in the first operating position, the movable valve plate 4 is in a first closed position; when in the second operating position, the movable valve plate 4 is in a second closed position; and when in the third operating position, the movable valve plate 4 is in a water-stopped position. In the first and third operating positions, the axis of the operating lever 51 coincides with or is parallel to the axis of the housing 1. In the second operating position, the axis of the operating lever 51 forms a certain angle with the axis of the housing 1. Therefore, when water is dispensed through the second water outlet 35, the user can visually observe that water is being dispensed through the second water outlet 35 via the operating lever 51.

[0054] The valve shaft assembly 5 further includes a drive seat 52 and a rotating seat 53. The drive seat 52 is fixedly connected to the moving valve plate 4, and the rotating seat 53 is rotatably connected to the housing 1. The drive seat 52 includes a receiving groove 521, and one end of the operating rod 51 extends movably into the receiving groove 521. The operating rod 51 is also oscillatingly connected to the rotating seat 53. In this embodiment, the rotating seat 53 is rotatably connected to the upper opening 12 of the housing 1. The rotating seat 53 includes a central through hole 531. The operating rod 51 extends into the central through hole 531 and into the receiving groove 521. The two sides of the operating rod 51 are rotatably connected to the two sides of the central through hole 531 through a rotating pin 532 to achieve oscillation.

[0055] See Figure 16In this embodiment, a faucet 6 is also provided, which includes the valve core. The faucet 6 includes a faucet body 61 and a sensing component 62. The sensing component 62 includes a sensing mechanism 621 and a solenoid valve 622. The valve core is disposed within the faucet body 61. The faucet 6 also includes a first water outlet 63 and a second water outlet 64. The first water outlet 63 is connected to the first water outlet 34, and the second water outlet 64 is connected to the second water outlet 35. The solenoid valve 622 is disposed on the first water outlet 63 to control the opening and closing of the first water outlet 63. When the solenoid valve 622 fails, the user can directly rotate the valve shaft assembly 5 to make the moving valve plate 4 in the stop position. At this time, the faucet 6 can also make the moving valve plate 4 in the second open position through the valve shaft assembly 5.

[0056] The above description is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto. Any non-substantial modifications made to the present utility model by those skilled in the art within the scope of the technology disclosed in the present utility model using this concept shall be deemed as an infringement of the protection scope of the present utility model.

Claims

1. A valve core, characterized in that, The valve core includes a stationary valve plate and a moving valve plate; the stationary valve plate includes a first water inlet hole, a second water inlet hole, a first water outlet hole, and a second water outlet hole; the moving valve plate includes a mixing water inlet hole, a mixing water outlet hole, and a mixing water channel, wherein the mixing water channel connects the mixing water inlet hole and the mixing water outlet hole. The movable valve plate abuts against the stationary valve plate, and the movable valve plate can move relative to the stationary valve plate so that the mixing inlet hole can connect to the first inlet hole and / or the second inlet hole. The moving valve plate also includes a first connected position, a second connected position, and a water-stopping position relative to the stationary valve plate. When in the first connected position, the mixing outlet is connected to the first outlet. When in the second connected position, the mixing outlet is connected to the second outlet. When in the water-stopping position, the mixing outlet corresponds to a water-stopping wall surface of the stationary valve plate.

2. A valve core as described in claim 1, characterized in that: The first water inlet and the second water inlet are arranged at intervals along the circumference of the static valve plate; The first and second water outlets are arranged at radial intervals along the stationary valve plate; The moving valve plate can rotate circumferentially relative to the stationary valve plate to change the ratio of the mixing inlet hole connecting to the first inlet hole and the second inlet hole. The moving valve plate can move radially relative to the stationary valve plate to change the connection of the mixing outlet hole to the first outlet hole or the second outlet hole.

3. A valve core as described in claim 1, characterized in that: The first water outlet and the water-stop wall are arranged at intervals along the circumference of the static valve plate; When the mixing outlet is connected to the first outlet, the moving valve plate can rotate circumferentially relative to the stationary valve plate so that the mixing outlet corresponds to the water-stopping wall surface.

4. A valve core as described in claim 2 or 3, characterized in that: The first water inlet, the second water inlet, the first water outlet, and the water-stopping wall are arranged around the second water outlet.

5. A valve core as described in claim 4, characterized in that: It also includes a housing, valve shaft assembly, and base; The stationary valve plate and the moving valve plate are disposed inside the housing. The base is fixedly connected to the housing. The stationary valve plate is fixedly connected to the base. The valve shaft assembly is connected to the moving valve plate to drive the moving valve plate to move.

6. A valve core as described in claim 5, characterized in that: The valve shaft assembly includes an operating lever for driving the drive seat to move. The operating lever has a first operating position, a second operating position, and a third operating position. When in the first operating position, the movable valve plate is in a first closed position; when in the second operating position, the movable valve plate is in a second closed position; and when in the third operating position, the movable valve plate is in a water-stopped position. When in the first and third operating positions, the axis of the operating lever coincides with or is parallel to the axis of the housing. When in the second operating position, the axis of the operating lever forms a certain angle with the axis of the housing.

7. A valve core as described in claim 6, characterized in that: The valve shaft assembly further includes a drive seat and a rotating seat. The drive seat is fixedly connected to the moving valve plate, and the rotating seat is rotatably connected to the housing. The drive seat includes a receiving groove, and one end of the operating rod extends movably into the receiving groove. The operating rod is also oscillatingly connected to the rotating seat.

8. A valve core as described in claim 5, characterized in that: The base is also provided with four openings that are respectively connected to the first water inlet, the second water inlet, the first water outlet and the second water outlet. The valve core also includes an inner sealing ring disposed between the static valve plate and the base. The inner sealing ring extends circumferentially around the first water inlet, the second water inlet, the first water outlet and the second water outlet. The valve core also includes an outer sealing ring disposed on the outside of the base. The outer sealing ring extends circumferentially around the four openings, and the height of the outer sealing ring is 1.5 times or more the depth of the outer groove of the base.

9. A faucet, characterized in that, Includes a valve core as described in any one of claims 1-7.

10. A faucet as described in claim 9, characterized in that: The faucet includes a faucet body and a sensing component. The sensing component includes a sensing mechanism and a solenoid valve. The valve core is disposed in the faucet body. The faucet also includes a first water outlet and a second water outlet. The first water outlet is connected to the first water outlet hole, and the second water outlet is connected to the second water outlet hole. The solenoid valve is disposed in the first water outlet to control the opening and closing of the first water outlet.

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