Valve element

Abstract

The valve element comprises a shell, a static piece, a valve rod and a movable piece, the static piece is sequentially provided with a cold water port, a first water mixing port, a hot water port and a second water mixing port in the circumferential direction, the cold water port and the hot water port are symmetrically arranged at the interval of 180 degrees, and the first water mixing port and the second water mixing port are asymmetrically arranged at the interval of 180 degrees. The first water mixing port is close to the center of the static sheet, and the second water mixing port is far away from the center of the static sheet; the face, facing the static piece, of the movable piece is provided with a water distribution cavity which is arranged in an offset mode relative to the rotation center of the movable piece and corresponds to the cold water opening, and the side, away from the center direction of the movable piece, of the water distribution cavity is provided with an outer water groove which is formed in the circumferential direction of the movable piece towards the first water mixing opening and communicates with the movable piece. One side, close to the center direction of the moving plate, of the water distribution cavity is provided with an inner water tank which is formed towards the second water mixing port in the circumferential direction of the moving plate and is communicated with the moving plate. The double-way valve has the advantages that double-way output can be controlled by rotating the valve rod, and meanwhile double-way water temperature adjustment is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bathroom accessories, specifically to a valve core. Background Technology

[0002] The existing hot and cold water valve core has one cold water inlet and one hot water inlet, and then a mixing outlet. The water flow is controlled by adjusting the swing of the valve stem, and the water temperature is controlled by rotating the valve stem. Therefore, it can only achieve one output. If multi-channel control is required, one or more switching valves are generally required to be installed downstream of the mixing outlet to switch the water output from different outlets. This results in a complex faucet water circuit structure, inconvenient control, and an insufficiently compact faucet size. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a valve core that can control dual outputs and simultaneously achieve dual water temperature regulation by rotating the valve stem.

[0004] To address the above problems, the following technical solution is provided: A valve core includes a housing, within which a stationary plate is disposed, and a movable plate, which is fitted and rotated by a valve stem, is disposed. The stationary plate has, in sequence along its circumference, a cold water inlet, a first mixing inlet, a hot water inlet, and a second mixing inlet, arranged in an equal-division manner. The cold water inlets and hot water inlets are symmetrically arranged at 180-degree intervals, while the first and second mixing inlets are asymmetrically arranged at 180-degree intervals, with the first mixing inlet positioned closer to the center of the stationary plate and the second mixing inlet positioned further away from the center. The movable plate has a water distribution cavity on its side facing the stationary plate, offset relative to its center of rotation and corresponding to the cold water inlet. On the side of the water distribution cavity away from the center of the movable plate, an outer water groove is provided, opening towards and communicating with the first mixing inlet along the circumference of the movable plate. On the side of the water distribution cavity closer to the center of the movable plate, an inner water groove is provided, opening towards and communicating with the second mixing inlet along the circumference of the movable plate.

[0005] The present invention is further configured such that the valve stem control moving plate includes a neutral position, a first position formed by rotating in one direction, and a second position formed by rotating in the other direction; the water distribution chamber, in conjunction with the outer water tank and the inner water tank, is only connected to the cold water inlet in the neutral position; after rotating in the neutral position to the first position, it is connected to the cold water inlet and the first mixing inlet; after further rotation, it is connected to the cold water inlet, the first mixing inlet, and the hot water inlet; after further rotation, it is connected to the first mixing inlet and the hot water inlet; after rotating in the neutral position to the second position, it is connected to the cold water inlet and the second mixing inlet; after further rotation, it is connected to the cold water inlet, the second mixing inlet, and the hot water inlet; after further rotation, it is connected to the second mixing inlet and the hot water inlet.

[0006] The present invention is further configured such that the valve stem is provided with an elastic positioning element, and the housing is provided with a positioning pit that matches the elastic positioning element when the valve stem is in the neutral position.

[0007] The present invention is further configured such that the valve stem is provided with a rotary disk for engaging with the moving plate, the rotary disk is provided with a positioning protrusion, and the elastic positioning element is installed in the positioning protrusion; the housing is provided with a limiting block provided with a positioning pit or positioning protrusion spaced 180 degrees apart when the valve stem is in the neutral position, and when the valve stem rotates to the first position or the second position, the positioning protrusion abuts against the limiting block for limiting.

[0008] The present invention is further configured such that the positioning protrusion is provided with a mounting hole, and the elastic positioning element includes a spring and a positioning head, wherein the spring is located in the mounting hole and pushes the positioning head outward.

[0009] The present invention is further configured such that the included angle between the end of the outer water tank and the end of the inner water tank is 180 degrees.

[0010] The present invention is further configured such that the housing includes a main body and a rear cover, the stationary plate is adapted to the rear cover, and the rear cover is provided with a cold water interface, a hot water interface, a first outlet, and a second outlet; the cold water interface, the hot water interface, the first outlet, and the second outlet are respectively connected to the cold water inlet, the hot water inlet, the first mixing inlet, and the second mixing inlet.

[0011] The present invention is further configured such that the side of the rear cover facing the stationary plate is provided with a first sealing ring surrounding the cold water interface, the hot water interface, the first outlet, and the second outlet and sealing against the stationary plate; and the side of the rear cover facing away from the stationary plate is provided with a second sealing ring surrounding the cold water interface, the hot water interface, the first outlet, and the second outlet.

[0012] The beneficial effects of this utility model are:

[0013] 1. By using the asymmetrical arrangement of the first and second mixing ports, when the valve stem controls the moving plate to rotate, the water distribution chamber, outer water tank, and inner water tank can control the first or second mixing port to output water in different rotation directions. The purpose of dual hot and cold water output can be achieved with only one valve core, which effectively reduces the size of the faucet and manufacturing cost, while simplifying the water circuit and production process.

[0014] 2. When the water distribution chamber is in the neutral position, both the first and second mixing inlets are in a stopped state. When it rotates to the first position, it first connects the cold water inlet and the first mixing inlet to achieve cold water output. After further rotation, it connects with the cold water inlet, the first mixing inlet, and the hot water inlet to achieve mixed water output. After further rotation, it connects with the first mixing inlet and the hot water inlet to achieve pure hot water output. When it rotates to the second position, it first connects the cold water inlet and the second mixing inlet to achieve cold water output. After further rotation, it connects with the cold water inlet, the second mixing inlet, and the hot water inlet to achieve mixed water output. After further rotation, it connects with the second mixing inlet and the hot water inlet to achieve pure hot water output. The change in rotation direction achieves dual-path control. Prioritizing the opening of the cold water during rotation can effectively prevent scalding during use. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a three-dimensional structural diagram of the moving piece of this utility model in the middle position.

[0018] Figure 4 This is a three-dimensional structural diagram of the moving piece in the left-turning state of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the moving piece in the right-turning state of this utility model.

[0020] Figure 6 This is a schematic diagram of the first-direction full-section three-dimensional structure of the present invention.

[0021] Figure 7 This is a schematic diagram of the second-direction full-section three-dimensional structure of the present invention.

[0022] Figure 8 This is a schematic diagram of the exploded three-dimensional structure of this utility model.

[0023] Figure 9 This is a schematic diagram of the first direction of the fully exploded three-dimensional structure of this utility model.

[0024] Figure 10 This is a schematic diagram of the second-direction fully exploded three-dimensional structure of the present invention.

[0025] Figure 11 This is a first-view three-dimensional structural diagram of the moving and stationary plates of this utility model in their separated state.

[0026] Figure 12This is a second-view three-dimensional structural diagram of the moving and stationary plates of this utility model in a separated state.

[0027] Figure 13 This is a front view of the stationary sheet from the perspective of the moving sheet towards the stationary sheet of this utility model.

[0028] Figure 14 This is a schematic diagram of the water distribution cavity position structure from the perspective of the moving plate towards the stationary plate in this utility model.

[0029] Figure 15 This is a schematic diagram of the structure of the first mixing port of this utility model in the state of pure cold water output.

[0030] Figure 16 This is a schematic diagram of the structure of the first mixing port of this utility model in the state of pure mixed water output.

[0031] Figure 17 This is a schematic diagram of the pure hot water output state of the first mixing port of this utility model.

[0032] Figure 18 This is a schematic diagram of the structure of the second mixing port of this utility model in the state of pure cold water output.

[0033] Figure 19 This is a schematic diagram of the structure of the second mixing port of this utility model in the state of pure mixed water output.

[0034] Figure 20 This is a schematic diagram of the pure hot water output state of the second mixing port of this utility model.

[0035] The labels in the diagram have the following meanings: 10-Shell; 11-Positioning pit; 12-Limiting block; 13-Main body; 14-Rear cover; 141-Cold water interface; 142-Hot water interface; 143-First outlet; 144-Second outlet; 20-Stationary plate; 21-Cold water inlet; 22-First mixing inlet; 23-Hot water inlet; 24-Second mixing inlet; 30-Valve stem; 31-Rotating disc; 32-Positioning protrusion; 321-Mounting hole; 40-Moving plate; 41-Water distribution chamber; 42-Outer water tank; 43-Inner water tank; 50-Elastic positioning element; 51-Spring; 52-Positioning head; 60-First sealing ring; 61-Second sealing ring. Detailed Implementation

[0036] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0037] refer to Figures 1 to 20 ,like Figures 1 to 20The valve core shown includes a housing 10, within which a stationary plate 20 is disposed. A movable plate 40, which is fitted to the stationary plate 20 and rotated by a valve stem 30, is also present. The stationary plate 20 has, in a circumferential direction, a cold water inlet 21, a first mixing inlet 22, a hot water inlet 23, and a second mixing inlet 24, which are arranged in an equally spaced manner. The cold water inlets 21 and 23 are symmetrically arranged at 180-degree intervals, while the first mixing inlets 22 and 24 are asymmetrically arranged at 180-degree intervals. The first mixing inlet 22 is positioned closer to the center of the stationary plate 20. The second mixing port 24 is positioned away from the center of the stationary plate 20; the side of the moving plate 40 facing the stationary plate 20 is provided with a water distribution cavity 41 that is offset relative to its rotation center and opens corresponding to the cold water port 21. The side of the water distribution cavity 41 away from the center of the moving plate 40 is provided with an outer water trough 42 that opens towards the first mixing port 22 in the circumferential direction of the moving plate 40 and communicates with it. The side of the water distribution cavity 41 close to the center of the moving plate 40 is provided with an inner water trough 43 that opens towards the second mixing port 24 in the circumferential direction of the moving plate 40 and communicates with it.

[0038] In the above structure, the first mixing port 22 and the second mixing port 24 are arranged asymmetrically. When the valve stem 30 controls the moving plate 40 to rotate, the water distribution chamber 41, the outer water tank 42, and the inner water tank 43 can control the first mixing port 22 or the second mixing port 24 to output water in different rotation directions. The purpose of dual hot and cold water output can be achieved with only one valve core, which effectively reduces the size of the faucet and the manufacturing cost, while simplifying the water circuit and production process.

[0039] In this embodiment, the valve stem 30 controls the moving plate 40 to include a neutral position in the rotation direction (see reference). Figure 3 The first position formed by rotating in one direction (reference) Figure 5 The second position is formed by rotating in the other direction (see reference). Figure 4 When the water distribution chamber 41, in conjunction with the outer water tank 42 and the inner water tank 43, is in the neutral position, it is only connected to the cold water inlet 21 (see reference). Figure 14 After rotating from the neutral position to the first position, it connects with the cold water inlet 21 and the first mixing inlet 22 (see reference). Figure 15 After further rotation, it connects with cold water inlet 21, first mixing inlet 22, and hot water inlet 23 (see reference). Figure 16 After further rotation, it connects with the first mixing inlet 22 and the hot water inlet 23 (see reference). Figure 17 After rotating from the middle position to the second position, it connects with the cold water inlet 21 and the second mixing inlet 24 (see reference). Figure 18 After further rotation, it connects with cold water inlet 21, second mixing inlet 24, and hot water inlet 23 (see reference). Figure 19 After further rotation, it connects with the second mixing inlet 24 and the hot water inlet 23 (see reference). Figure 20 ).

[0040] In the above structure, when the water distribution chamber 41 is in the neutral position (refer to...) Figure 3 , Figure 14 Both the first mixing outlet 22 and the second mixing outlet 24 are in a stop-flow state (refer to...). Figure 14 When it rotates to the first position, it first connects the cold water inlet 21 and the first mixing inlet 22 to achieve cold water output (refer to...). Figure 15 After further rotation, it connects with the cold water inlet 21, the first mixing inlet 22, and the hot water inlet 23 to achieve mixed water output (see reference). Figure 16 After further rotation, it connects with the first mixing port 22 and the hot water port 23 to achieve pure hot water output (see reference). Figure 17 When it rotates to the second position, it first connects the cold water inlet 21 and the second mixing inlet 24 to achieve cold water output (see reference). Figure 18 After further rotation, it connects with the cold water inlet 21, the second mixing inlet 24, and the hot water inlet 23 to achieve mixed water output (see reference). Figure 19 After further rotation, it connects with the second mixing port 24 and the hot water port 23 to achieve pure hot water output (see reference). Figure 20 Dual-channel control is achieved by changing the direction of rotation. During rotation, cold water is turned on first, which can effectively prevent scalding during use.

[0041] In this embodiment, the valve stem 30 is provided with an elastic positioning element 50, and the housing 10 is provided with a positioning pit 11 that is adapted to the elastic positioning element 50 when the valve stem 30 is in the neutral position.

[0042] In the above structure, the valve stem 30 is rotated to create a tactile feedback, thus determining the neutral position.

[0043] In this embodiment, the valve stem 30 is provided with a rotary disk 31 for engaging with the moving plate 40. The rotary disk 31 is provided with a positioning protrusion 32, and the elastic positioning member 50 is installed in the positioning protrusion 32. The housing 10 is provided with a positioning pit 11 or a limiting block 12 at 180-degree intervals when the valve stem 30 is in the neutral position. When the valve stem 30 rotates to the first position or the second position, the positioning protrusion 32 abuts against the limiting block 12 for limiting.

[0044] In the above structure, the positioning protrusion 32 abuts against the limiting block 12 to limit the extreme position of the valve stem 30 when it rotates to the first position or the second position.

[0045] In this embodiment, the positioning protrusion 32 is provided with a mounting hole 321, and the elastic positioning member 50 includes a spring 51 and a positioning head 52. The spring 51 is located in the mounting hole 321 and pushes the positioning head 52 outward.

[0046] In this embodiment, the included angle α between the end of the outer water tank 42 and the end of the inner water tank 43 is 180 degrees.

[0047] In the above structure, it is ensured that the moving plate 40 can smoothly conduct and switch between hot and cold water states when it rotates, making its adjustment more linear.

[0048] In this embodiment, the housing 10 includes a main body 13 and a rear cover 14. The stationary plate 20 is adapted to the rear cover 14. The rear cover 14 is provided with a cold water interface 141, a hot water interface 142, a first outlet 143, and a second outlet 144. The cold water interface 141, the hot water interface 142, the first outlet 143, and the second outlet 144 are respectively connected to the cold water inlet 21, the hot water inlet 23, the first mixing inlet 22, and the second mixing inlet 24.

[0049] In the above structure, the cold water interface 141, hot water interface 142, first outlet 143, and second outlet 144 of the back cover 14 are used to adapt to the valve core mounting position of the faucet.

[0050] In this embodiment, the side of the rear cover 14 facing the stationary plate 20 is provided with a first sealing ring 60 surrounding the cold water interface 141, hot water interface 142, first outlet 143, and second outlet 144 and sealing against the stationary plate 20. The side of the rear cover 14 facing away from the stationary plate 20 is provided with a second sealing ring 61 surrounding the cold water interface 141, hot water interface 142, first outlet 143, and second outlet 144.

[0051] In the above structure, the first sealing ring 60 is used to seal the gap between the rear cover 14 and the stationary plate 20 to prevent water leakage; the second sealing ring 61 is used to seal when the valve core is installed on the valve core mounting position of the faucet to prevent water leakage.

[0052] In this embodiment, the limiting block 12 is located inside the main body 13.

[0053] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A valve core, comprising a housing, wherein a stationary plate is disposed within the housing, and a movable plate, which is fitted and adapted to fit the stationary plate, and whose rotation is controlled by a valve stem, is characterized in that: The stationary plate has a series of interconnected cold water inlets, a first mixing inlet, a hot water inlet, and a second mixing inlet arranged in an equal-division pattern along its circumferential direction. The cold water inlets and hot water inlets are symmetrically arranged at 180-degree intervals, while the first mixing inlets and second mixing inlets are asymmetrically arranged at 180-degree intervals, with the first mixing inlet positioned closer to the center of the stationary plate and the second mixing inlet positioned further away from the center of the stationary plate. The moving plate has a water distribution cavity on its side facing the stationary plate, offset relative to its rotation center and corresponding to the cold water inlet. The side of the water distribution cavity away from the center of the moving plate has an outer water trough that opens towards and connects to the first mixing inlet along the circumferential direction of the moving plate. The side of the water distribution cavity closer to the center of the moving plate has an inner water trough that opens towards and connects to the second mixing inlet along the circumferential direction of the moving plate.

2. A valve core according to claim 1, characterized in that: The valve stem control plate has a neutral position in the rotation direction, a first position formed by rotating in one direction, and a second position formed by rotating in the other direction. When the water distribution chamber is in the neutral position, it is only connected to the cold water inlet. After rotating in the first position direction from the neutral position, it is connected to the cold water inlet and the first mixing inlet. After further rotation, it is connected to the cold water inlet, the first mixing inlet, and the hot water inlet. After further rotation, it is connected to the first mixing inlet and the hot water inlet. After rotating in the second position direction from the neutral position, it is connected to the cold water inlet and the second mixing inlet. After further rotation, it is connected to the cold water inlet, the second mixing inlet, and the hot water inlet. After further rotation, it is connected to the second mixing inlet and the hot water inlet.

3. A valve core according to claim 2, characterized in that: The valve stem is provided with an elastic positioning element, and the housing is provided with a positioning pit that matches the elastic positioning element when the valve stem is in the neutral position.

4. A valve core according to claim 3, characterized in that: The valve stem is provided with a rotary disk for engaging with the moving plate. The rotary disk is provided with a positioning protrusion, and the elastic positioning element is installed in the positioning protrusion. The housing is provided with a limiting block with a positioning pit or positioning protrusion spaced 180 degrees apart when the valve stem is in the neutral position. When the valve stem rotates to the first position or the second position, the positioning protrusion abuts against the limiting block and is limited.

5. A valve core according to claim 4, characterized in that: The positioning protrusion is provided with a mounting hole, and the elastic positioning element includes a spring and a positioning head. The spring is located in the mounting hole and pushes the positioning head outward.

6. A valve core according to claim 1, characterized in that: The angle between the end of the outer water tank and the end of the inner water tank is 180 degrees.

7. A valve core according to claim 1, 2, 3, 4, 5, or 6, characterized in that: The housing includes a main body and a rear cover. The stationary plate is adapted to the rear cover. The rear cover is provided with a cold water interface, a hot water interface, a first outlet, and a second outlet. The cold water interface, hot water interface, first outlet, and second outlet are respectively connected to the cold water inlet, hot water inlet, first mixing inlet, and second mixing inlet.

8. A valve core according to claim 7, characterized in that: The side of the rear cover facing the stationary plate is provided with a first sealing ring surrounding the cold water interface, hot water interface, first outlet, and second outlet, and sealing it against the stationary plate. The side of the rear cover facing away from the stationary plate is provided with a second sealing ring surrounding the cold water interface, hot water interface, first outlet, and second outlet.

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