Valve element for electric heating faucet

Abstract

The utility model discloses a valve core for an electric heating faucet, which comprises a fixed ceramic chip and a movable ceramic chip in running fit with the fixed ceramic chip, the movable ceramic chip is provided with a through-flow cavity communicated with the fixed ceramic chip, the fixed ceramic chip is provided with a water inlet cavity and a water outlet cavity which are matched with the through-flow cavity, the through-flow cavity is communicated with the water outlet cavity, and the through-flow cavity is communicated with the water outlet cavity. When the movable ceramic chip rotates towards the first direction, the communication area of the through-flow cavity and the water outlet cavity is reduced; according to the valve element, through rotation of the movable ceramic piece, the water outlet amount in the water outlet cavity is increased firstly and then decreased along with increase of the rotation angle, the internal water temperature changes obviously, and the water outlet temperature changes from low to high; when water discharging is completed and rotary closing is needed, the water discharging amount is increased and then decreased along with the change of the rotary degree, waste heat in the faucet can be discharged out of the faucet through large-flow water discharging flow during water closing, the problem that hands are scalded by waste heat during secondary use can be solved, and the service life of electric components in the faucet is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic wafer valves, in particular to a valve core for an electric water faucet. Background Art

[0002] When the hot water of the existing faucet flows out, during the process from closing to opening, as the water output of the faucet increases with rotation, the outlet water temperature changes from high to low. This causes that when the faucet is closed, after the water output decreases with rotation, the heating tube is still in the heating state, resulting in the water temperature of the remaining water in the faucet being still relatively high. At the same time, due to the decrease in water output, the small outlet water flow is difficult to carry away the residual heat in the faucet, and there will be a problem of hot residual heat when using it for the second time, and it also affects the service life of the electrical components in the faucet. Content of the Utility Model

[0003] Aiming at the deficiencies and defects of the prior art, a valve core for an electric water faucet is provided. To achieve the purpose of preventing scalding when opening and closing, the utility model provides the following technical solutions.

[0004] A valve core for an electric water faucet includes a fixed ceramic wafer and a moving ceramic wafer rotatably matched with the fixed ceramic wafer. A flow-through cavity communicating with the fixed ceramic wafer is arranged on the moving ceramic wafer. An inlet cavity and an outlet cavity are arranged on the fixed ceramic wafer and are arranged in cooperation with the flow-through cavity. The flow-through cavity communicates with the outlet cavity. When the moving ceramic wafer rotates in the first direction, the communicating area between the flow-through cavity and the outlet cavity decreases.

[0005] Compared with the prior art, when the valve core described in this patent rotates the moving ceramic wafer, when rotating in the first direction, the communicating area between the flow-through cavity and the inlet cavity increases, and the communicating area between the flow-through cavity and the outlet cavity decreases. The water output in the outlet cavity first increases and then decreases with the increase of the rotation angle, and the internal water temperature changes significantly. The outlet water temperature changes from low to high. And when it is necessary to rotate back to close after the water output is completed, the water output also first increases and then decreases with the change of the rotation degree. When closing the water, it passes through a large flow rate, and the outlet water flow can discharge the residual heat in the faucet from the faucet, which can improve the problem of hot residual heat when using it for the second time and increase the service life of the electrical components in the faucet.

[0006] Further, when the moving ceramic wafer rotates in the first direction to the first angle, the communicating area between the inlet cavity and the flow-through cavity increases but is still smaller than the communicating area between the inlet cavity and the outlet cavity. When the moving ceramic wafer rotates from the first angle to the second angle in the first direction, the communicating area between the inlet cavity and the flow-through cavity increases and is larger than the communicating area between the inlet cavity and the outlet cavity.

[0007] Through the above improvements, when the moving porcelain piece rotates to the first angle, the flow-through cavity and the water outlet cavity are always connected, but the connected area gradually decreases, and the connected area between the flow-through cavity and the water inlet cavity gradually increases, but it is still smaller than the connected area between the flow-through cavity and the water outlet cavity. At this time, the water output of the water outlet cavity still increases as the moving porcelain piece rotates; when the moving porcelain piece rotates to the second angle, the connected area between the flow-through cavity and the water inlet cavity gradually increases and is larger than the connected area between the flow-through cavity and the water outlet cavity, and the water output gradually decreases; the flow rate is adjusted by the amount of the connected area between the flow-through cavity and the water inlet cavity and the water outlet cavity respectively, and the operation is simple and effective.

[0008] Further, the opposite direction of the first direction is set as the second direction. The moving porcelain piece rotates towards the second direction to the third angle. The flow-through cavity and the water outlet cavity are always connected, and the flow-through cavity section and the water inlet cavity are gradually connected and the connected area increases.

[0009] Through the above improvements, when the moving porcelain piece rotates towards the second direction to the third angle, the flow-through cavity and the water outlet cavity are always connected, the flow-through cavity and the water inlet cavity are gradually connected and the connected area increases. As the rotation angle increases, the water output also gradually increases, which is convenient for use.

[0010] Further, a glue film cavity is provided on the fixed porcelain piece, and a matching cavity is provided on the moving porcelain piece. The matching cavity is arranged inside the flow-through cavity. When the moving porcelain piece rotates towards the first direction, the matching cavity is connected to the glue film cavity. When the moving porcelain piece rotates towards the second direction, the matching cavity is disconnected from the glue film cavity.

[0011] Through the above improvements, by connecting and disconnecting the matching cavity provided on the moving porcelain piece and the glue film cavity, it is controlled whether the glue film switch in the glue film cavity is turned on, so as to control whether the water outlet cavity heats the water.

[0012] When the flow-through cavity rotates in the hot water area on the fixed porcelain piece, the glue film cavity and the second diversion section are always connected, so that when the flow-through cavity rotates to the hot water area, the glue film in the glue film cavity can always be in a triggered state for heating operation to provide hot water.

[0013] Further, the water outlet cavity includes a first water flow cavity and a second water flow cavity, and the depth of the second water flow cavity is less than that of the first water flow cavity.

[0014] Through the above improvements, the water outlet cavity includes a first water flow cavity and a second water flow cavity, and the depth of the second water flow cavity is less than that of the first water flow cavity, so that the flow rate decreases when the first water flow cavity is connected to the flow-through cavity.

[0015] Further, a valve housing is provided outside the moving porcelain piece and the fixed porcelain piece. The valve housing includes a base and an upper cover. A positioning groove is provided at the lower end of the fixed porcelain piece, and a positioning block is provided on the base in the direction of the fixed porcelain piece. The positioning block is arranged in cooperation with the positioning groove; a buckling block protruding outward is provided on the base, and a buckling groove is provided on the side wall of the upper cover. The buckling block is arranged in buckling cooperation with the buckling groove.

[0016] Through the above improvements, the positioning block arranged on the base in the direction of the fixed porcelain piece is in snap-fit connection with the positioning groove arranged at the lower end of the fixed porcelain piece, enabling the fixed porcelain piece to be stably installed on the base during installation, improving the stability during installation, and also preventing the fixed porcelain piece from deflecting during use; the buckling groove arranged on the side wall of the upper cover and the buckling block arranged on the base are in buckling cooperation, improving the stability of the connection and enabling the upper cover and the base of the valve housing to be better installed.

[0017] Further, a rubber gasket is provided between the base and the fixed porcelain piece.

[0018] Through the above improvements, a rubber gasket is provided between the base and the fixed porcelain piece for sealing, and it can prevent wear caused by long-term direct contact between the base and the fixed porcelain piece.

[0019] Further, a valve shaft is provided at the upper end of the moving porcelain piece, and the valve shaft drives the moving porcelain piece to rotate.

[0020] Through the above improvements, a valve shaft is provided at the upper end of the moving porcelain piece, and the rotation of the valve shaft drives the moving porcelain piece to rotate, providing initial power for the moving porcelain piece. Description of the Drawings

[0021] Figure 1 It is an overall exploded structure diagram of a valve core for an electric water faucet;

[0022] Figure 2 It is an overall structure diagram of a valve core for an electric water faucet;

[0023] Figure 3 It is a structure diagram of a fixed porcelain piece of a valve core for an electric water faucet;

[0024] Figure 4 It is a structure diagram of a moving porcelain piece of a valve core for an electric water faucet;

[0025] Figure 5 Figures a to 5d are assembly schematic diagrams of different positions of the fixed porcelain piece and the moving porcelain piece when the moving porcelain piece rotates to the first angle in the first direction;

[0026] Figure 6 Figures a to 6d are assembly schematic diagrams of different positions of the fixed porcelain piece and the moving porcelain piece during the rotation when the moving porcelain piece rotates from the first angle to the second angle in the first direction;

[0027] Figure 7 Figures a to 7d are schematic assembly diagrams of different positions of the fixed porcelain piece and the movable porcelain piece when the movable porcelain piece rotates to the third angle in the second direction.

[0028] Among them, 1 is the fixed porcelain piece; 1.1 is the water inlet cavity; 1.2 is the water outlet cavity; 1.21 is the first water flow cavity; 1.22 is the second water flow cavity; 1.3 is the cavity for the rubber membrane; 1.4 is the positioning groove; 2 is the movable porcelain piece; 2.1 is the flow-through cavity; 2.2 is the mating cavity; 3 is the first direction; 3.1 is the first angle; 3.2 is the second angle; 4 is the second direction; 4.1 is the third angle; 5 is the valve housing; 5.1 is the base; 5.11 is the positioning block; 5.12 is the snap-in block; 5.2 is the upper cover; 5.21 is the snap-in groove; 6 is the rubber gasket; 7 is the valve shaft. Specific embodiments

[0029] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] As Figures 1 to 7 shown, a valve core for an electric water faucet includes a fixed porcelain piece 1 and a movable porcelain piece 2 that is rotatably matched with the fixed porcelain piece 1. A flow-through cavity 2.1 communicating with the fixed porcelain piece 1 is provided on the movable porcelain piece 2. A water inlet cavity 1.1 and a water outlet cavity 1.2 that are matched with the flow-through cavity 2.1 are provided on the fixed porcelain piece 1. When the movable porcelain piece 2 rotates in the first direction 3, the communication area between the flow-through cavity 2.1 and the water inlet cavity 1.1 increases, and the communication area between the flow-through cavity 2.1 and the water outlet cavity 1.2 decreases.

[0032] The fixed porcelain piece 1 is provided with a water inlet cavity 1.1 and a water outlet cavity 1.2. Water enters from the water inlet cavity 1.1 and is discharged from the water outlet cavity 1.2 through the flow-through cavity 2.1 on the movable porcelain piece 2. The water outlet cavity 1.2 includes a first water flow cavity 1.21 and a second water flow cavity 1.22. The depth of the second water flow cavity is less than that of the first water flow cavity 1.21, and the flow rate of the second water flow cavity communicating with the flow-through cavity 2.1 is less than the flow rate of the first water flow cavity 1.21 communicating with the flow-through cavity 2.1.

[0033] As Figures 1 to 2As shown in the figure, a valve housing 5 is provided on the outer sides of the fixed porcelain piece 1 and the movable porcelain piece 2. The valve housing 5 includes a base 5.1 and an upper cover 5.2. The fixed porcelain piece 1 is installed on the base 5.1. A plurality of positioning grooves 1.4 are provided at the lower end of the fixed porcelain piece 1. At the same time, a corresponding number of positioning blocks 5.11 protrude from the base 5.1 towards the fixed porcelain piece 1. During installation, through the snap-fit between the positioning blocks 5.11 on the base 5.1 and the positioning grooves 1.4 at the lower end of the fixed porcelain piece 1, the fixed porcelain piece 1 can be stably installed on the base 5.1; and a rubber gasket 6 is provided between the base 5.1 and the fixed porcelain piece 1.

[0034] A plurality of buckling grooves 5.21 are provided on the side wall of the upper cover 5.2 of the valve housing 5. A buckling block 5.12 is provided on the base 5.1. The buckling block 5.12 protrudes from the base 5.1 towards the side wall of the upper cover 5.2. During installation, it is fixed through the buckling fit between the buckling block 5.12 and the buckling grooves 5.21, improving the stability of the overall connection of the valve housing 5 during installation.

[0035] Embodiment 1: The movable porcelain piece 2 rotates from the initial state towards the first direction 3. During the rotation process, the through-gel film cavity 1.3 and the mating cavity 2.2 are always in a communicating state, and the gel film switch in the through-gel film cavity 1.3 is always in an open state. The water released from the water outlet cavity 1.2 starts to be heated, and finally hot water starts to be output, and the water temperature gradually rises during heating.

[0036] As Figure 5 a to Figure 5 As shown in d, the flow cavity of the movable porcelain piece 2 rotates towards the first direction 3 on the fixed porcelain piece 1 to the first angle 3.1, that is, when the rotation angle of the movable porcelain piece 2 is from 0 degrees to 40 degrees; the through-flow cavity 2.1 and the water outlet cavity 1.2 always maintain a communicating state. At the same time, the through-flow cavity 2.1 and the water inlet cavity 1.1 gradually start to be in communication from the initial non-communication state. And as the movable porcelain piece 2 continues to rotate, the communicating area between the through-flow cavity 2.1 and the water outlet cavity 1.2 continuously decreases, and the communicating area between the through-flow cavity 2.1 and the water inlet cavity 1.1 continuously increases. However, at this stage, the communicating area between the through-flow cavity 2.1 and the water outlet cavity 1.2 is still larger than the communicating area between the through-flow cavity 2.1 and the water inlet cavity 1.1. At this time, the output water is hot water and the water output still increases as the rotation angle of the movable porcelain piece 2 increases.

[0037] Embodiment 2: As Figure 6 a to Figure 6As shown in Figures d, when the flow cavity of the moving porcelain piece 2 rotates from the first angle 3.1 to the first angle 3.1 in the first direction 3 on the fixed porcelain piece 1, that is, when the rotation angle of the moving porcelain piece 2 is from 40 degrees to 120 degrees; at this time, the flow cavity 2.1 and the water outlet cavity 1.2 still always maintain a connected state, and the flow cavity 2.1 and the water inlet cavity 1.1 also always maintain a connected state. However, as the rotation angle of the moving porcelain piece 2 continues to increase, the flow cavity 2.1 is only connected to the second water flow cavity of the water outlet cavity 1.2. At this time, the connected area between the flow cavity 2.1 and the water outlet cavity 1.2 is smaller than the connected area between the flow cavity 2.1 and the water inlet cavity 1.1, and the water output gradually decreases.

[0038] Embodiment 3: As Figure 7 a to Figure 7 As shown in Figures d, when the flow cavity of the moving porcelain piece 2 rotates to the third angle 4.1 in the second direction 4 on the fixed porcelain piece 1, the second direction 4 is opposite to the first direction 3, and the third angle 4.1 of the rotation of the moving porcelain piece 2 is from 0 degrees to 40 degrees; during the rotation process, the flow cavity 2.1 and the water outlet cavity 1.2 always maintain a connected state, and the flow cavity 2.1 and the water inlet cavity 1.1 gradually start to be connected and the connected area gradually increases as the moving porcelain piece 2 rotates, but it is always much smaller than the connected space between the first diversion section and the first water inlet cavity 1.1; during the rotation process, the glue film cavity 1.3 and the matching cavity 2.2 are in a disconnected state, and the glue film switch in the glue film cavity 1.3 cannot be triggered, and the heating system cannot be triggered. Finally, cold water is output from the water outlet cavity 1.2.

[0039] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A valve core for an electric water heater faucet, comprising a fixed porcelain piece (1) and a movable porcelain piece (2) rotatably engaged with the fixed porcelain piece (1), characterized in that: A flow-through cavity (2.1) communicating with the fixed porcelain piece (1) is provided on the movable porcelain piece (2). An inlet cavity (1.1) and an outlet cavity (1.2) which are cooperatively arranged with the flow-through cavity (2.1) are provided on the fixed porcelain piece (1). The flow-through cavity (2.1) is communicated with the outlet cavity (1.2). When the movable porcelain piece (2) rotates in the first direction (3), the communicating area between the flow-through cavity (2.1) and the outlet cavity (1.2) decreases.

2. The valve core for an electric water faucet according to claim 1, characterized in that: When the movable porcelain piece (2) rotates in the first direction (3) to a first angle (3.1), the communicating area between the inlet cavity (1.1) and the flow-through cavity (2.1) increases but is still smaller than the communicating area between the inlet cavity (1.1) and the outlet cavity (1.2); when the movable porcelain piece (2) rotates from the first angle (3.1) to a second angle (3.2) in the first direction (3), the communicating area between the inlet cavity (1.1) and the flow-through cavity (2.1) increases and is larger than the communicating area between the inlet cavity (1.1) and the outlet cavity (1.2).

3. The valve core for an electric water faucet according to claim 1, wherein: The opposite direction of the first direction (3) is set as the second direction (4). When the movable porcelain piece (2) rotates in the second direction (4) to a third angle (4.1), the flow-through cavity (2.1) and the outlet cavity (1.2) are always communicated, and the flow-through cavity (2.1) section is gradually communicated with the inlet cavity (1.1) and the communicating area increases.

4. The valve core for an electric water tap according to claim 3, characterized in that: A glue film cavity (1.3) is provided on the fixed porcelain piece (1). A fitting cavity (2.2) is provided on the movable porcelain piece (2). The fitting cavity (2.2) is arranged inside the flow-through cavity (2.1). When the movable porcelain piece (2) rotates in the first direction (3), the fitting cavity (2.2) is communicated with the glue film cavity (1.3). When the movable porcelain piece (2) rotates in the second direction (4), the fitting cavity (2.2) is disconnected from the glue film cavity (1.3).

5. The valve core for an electric water tap according to claim 1, characterized in that: The outlet cavity (1.2) includes a first flowing water cavity (1.21) and a second flowing water cavity (1.22). The depth of the second flowing water cavity is smaller than that of the first flowing water cavity (1.21).

6. The valve core for an electric water faucet according to claim 1, characterized in that: A valve housing (5) is arranged outside the movable porcelain piece (2) and the fixed porcelain piece (1). The valve housing (5) includes a base (5.1) and an upper cover (5.2). A positioning groove (1.4) is provided at the lower end of the fixed porcelain piece (1). A positioning block (5.11) is arranged on the base (5.1) in the direction of the fixed porcelain piece (1). The positioning block (5.11) is cooperatively arranged with the positioning groove (1.4); a buckling block (5.12) protruding outward is arranged on the base (5.1). A buckling groove (5.21) is arranged on the side wall of the upper cover (5.2). The buckling block (5.12) is buckled and cooperatively arranged with the buckling groove (5.21).

7. The valve core for an electric water faucet according to claim 6, wherein: A rubber gasket (6) is arranged between the base (5.1) and the fixed porcelain piece (1).

8. The valve core for an electric water tap according to claim 1, characterized in that: A valve shaft (7) is arranged at the upper end of the movable porcelain piece (2). The valve shaft (7) drives the movable porcelain piece (2) to rotate.

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