Electric three-way valve, water adding mechanism of electric three-way valve and electric heating tea tray

Abstract

The invention discloses an electric three-way valve, a water adding mechanism thereof and an electric heating tea tray. The electric three-way valve comprises a motor, a three-way piece, a first packing cup and a second packing cup; the three-way piece is provided with a water inlet, a first water outlet and a second water outlet, and the first leather cup and the second leather cup seal or open the first water outlet and the second water outlet respectively; the motor can drive the push disc to rotate by a certain angle, and the two ends of the warping plate are acted by utilizing different thicknesses of the edge of the bottom of the push disc: the two end parts of the warping plate can respectively stretch / compress or compress / stretch the first and second leather cups, so that the first and second leather cups can selectively open / close or close / open the first and second water outlets; or the two ends of the warping plate do not stretch or compress the first and second leather cups, so that the first and second leather cups do not seal the first and second water outlets respectively at the same time. The structure of the water adding mechanism and the structure of the electric heating tea tray are simpler, water can be selectively supplied to one of the two water outlets from the water inlet through one motor, water can also be supplied to the two water outlets at the same time, and therefore different requirements are met.

Description

Technical Field

[0001] This invention relates to an electric heating tea tray and its accessories, specifically an improved water filling mechanism that allows for the separation of the teapot body and the teapot base. More specifically, it relates to a mechanism suitable for adding water from the base to the teapot body via the upper seat, and an electric heating tea tray containing the mechanism. Background Technology

[0002] Currently, electrical couplers are widely used in electric kettles. They consist of a lower coupler and an upper coupler, with multiple ring-shaped metal electrodes arranged within them. Electrical connection is established by the contact of the corresponding metal electrodes when the upper coupler is inserted into the lower coupler. This type of coupler not only allows for the separation of the upper and lower couplers to separate the kettle body from the kettle base, but also allows the kettle body to be inserted from any direction and fit the kettle base, making it very convenient to use.

[0003] As people's living standards improve, consumers are constantly raising their demands for electric kettles. People hope that the water inlet of electric kettles can also be automatically controlled, that is, water can be automatically added to the kettle body from the outside. To this end, people have proposed to set a water inlet channel in the central opening of the upper coupler, and to set a sealing sleeve and a one-way valve in the water inlet channel. A water inlet pipe is set in the central opening of the lower coupler. When the kettle body is placed on the kettle base, the water inlet pipe can be fitted into the sealing sleeve, and the one-way valve can be opened by the water pressure, forming a passage from the water inlet pipe to the water inlet channel. Furthermore, people have separated the sealing sleeve, one-way valve, water inlet channel and water inlet pipe from the electric coupler to form a separate device and applied it to the kettle. It can also meet the requirement of opening the valve when needed so that water can enter the water inlet channel from the water inlet pipe and be introduced into the kettle body by the water inlet channel.

[0004] In daily life, people often gather multiple utensils together on a tea tray with a platform for boiling water or making beverages. For example, some teas only need to be brewed with boiling water to meet the requirements of multiple infusions, while others need to be steamed or boiled to extract their effective components. In addition, teacups also need to be boiled and sterilized from time to time. All of these require the platform to have multiple utensils to meet people's different needs.

[0005] Two relevant documents are provided below to illustrate the current state of development of this technology.

[0006] Chinese utility model patent CN 214072919 U discloses a water filling mechanism and an electric kettle containing the water filling mechanism. It has an upper coupler at the bottom of the kettle body and a lower coupler at the kettle base. The upper coupler has a central opening for a water inlet channel, and the lower coupler has a central through hole for a water inlet pipe. When the kettle body is placed on the kettle base, the upper and lower couplers work together to connect the water inlet channel and the water inlet pipe, so that water can be introduced from the kettle base into the kettle body. In addition, the water pump in the water filling mechanism has a notch between the water inlet chamber and the water outlet chamber. When the motor stops working, the remaining water in the water inlet channel and the water inlet pipe can flow back to the water tank through the notch by the water pump, thereby solving the problem of water escaping when the kettle body is separated from the kettle base.

[0007] Chinese utility model patent CN 221974358 U discloses a three-way valve and its water injection mechanism and an electric heating tea tray. The electric heating tea tray is equipped with multiple heating appliances. By utilizing the negative pressure generated by the return water pump of the appliances and combining it with the structure of the three-way valve, a temporary water passage is automatically built for the appliances, allowing each appliance to share the same water container. The return water pump and the temporarily built water passage guide the remaining water in the water passage of the appliances to the water container.

[0008] While the above solution solves the problem of multiple appliances sharing the same water container and the problem of water overflowing when each kettle body is separated from the kettle base, it requires a return water pump for each appliance, which is not only structurally complex but also costly, making it unsuitable for widespread application. Summary of the Invention

[0009] The purpose of this invention is to provide an electric three-way valve, its water supply mechanism, and an electric heating tea tray. The water supply mechanism has a simpler structure. It uses a motor to selectively supply water to one of the two outlets from one inlet, or to supply water to both outlets simultaneously, to meet different user requirements.

[0010] The electric three-way valve of the present invention is implemented by the following scheme: An electric three-way valve includes a motor, a three-way component, a first lip cup, and a second lip cup. The three-way component has an inlet and a first outlet and a second outlet. The first and second lip cups can respectively close or open the first and second outlets. The valve is characterized by further including a push plate and a rocker arm. The motor can drive the push plate to rotate through a certain angle, and the rocker arm's two ends are affected by the different thicknesses of the push plate's bottom edge: one end of the rocker arm is raised while the other end is lowered. The two ends of the rocker arm can respectively stretch / compress or compress / stretch the first and second lip cups, allowing the first and second lip cups to selectively open / close or close / open the first and second outlets. Alternatively, the two ends of the rocker arm can be at the same horizontal position, with neither end stretching or compressing the first and second lip cups, allowing the first and second lip cups to simultaneously not close the first and second outlets.

[0011] In this way, people can choose according to their needs. By controlling the rotation of the motor, the first rubber cup opens the first water outlet while the second rubber cup closes the second water outlet, so that the water inlet is connected to the first water outlet but not to the second water outlet. Alternatively, the first rubber cup can close the first water outlet while the second rubber cup opens the second water outlet, so that the water inlet is connected to the second water outlet but not to the first water outlet. Or, the first and second rubber cups can leave the first and second water outlets unclosed, so that the water inlet is connected to both the first and second water outlets.

[0012] Therefore, by rotating the motor at a certain angle or not rotating, it can be determined that the water inlet is connected to the first water outlet but not to the second water outlet, or that the water inlet is not connected to the first water outlet but is connected to the second water outlet, or that the water inlet is connected to both the first and second water outlets at the same time.

[0013] The water filling mechanism of the present invention is implemented by the following scheme: A water supply mechanism includes a return water pump, characterized in that it also includes the aforementioned electric three-way valve, which supplies water to the inlet of the three-way valve by the return water pump.

[0014] In this way, when the return water pump is working, water is drawn into the inlet. When the motor rotates at a certain angle or does not rotate, the push plate and rocker plate can determine that one of the two rubber cups opens one outlet, while the other rubber cup closes the other outlet, allowing water to flow from the inlet to the opened outlet. Alternatively, the push plate can make the two ends of the rocker plate horizontal, so that the first and second rubber cups do not close the first and second outlets respectively, allowing water to flow from the inlet to the first and second outlets.

[0015] Therefore, the rotation angle of the motor or its stationary rotation determines whether one of the two water outlets is open or closed, and the other water outlet is closed or open, or both water outlets are open. Thus, the water outlet can be selected by the rotation angle of the motor.

[0016] The electric heating tea tray of the present invention is implemented by the following scheme: An electric heating tea tray includes a platform and two heating appliance bases mounted on the platform, characterized in that it also includes the aforementioned water filling mechanism, with the water inlets of the two heating appliance bases respectively connected to the first and second water outlets of the water filling mechanism.

[0017] Therefore, an angle switch rotating the motor can be used directly as a control for people to select the appliance to use. A temporary passage is built between the water inlet and the first and / or second water outlets, so that the water flow can be directed to select one of the heating appliances, or the water flow can be directed to both heating appliances, so that both heating appliances can be filled with water at the same time.

[0018] In specific applications, when two heating appliances are filled with water simultaneously, it can mean that the water-boiling appliance is filled with water while the steaming appliance is also filled with water, or that the water-boiling appliance is filled with water while the sterilizing appliance is also filled with water.

[0019] The better option is that the above solution also includes a control mechanism and a water level detection mechanism. When the two heating appliances are filled with water at the same time, the water level detection mechanism can detect the water level in the two heating appliances separately. When the water level in one of the heating appliances reaches the maximum water level, the control mechanism can automatically switch the mode, changing the simultaneous water filling mode to the individual water filling mode, and continue to fill the heating container whose water level has not reached the maximum water level.

[0020] In the above scheme, the return water pump can be the water pump used in Chinese Utility Model Patent CN 214072919 U.

[0021] The electric three-way valve, its water filling mechanism, and the electric heating tea tray created by this invention use only one motor. By pushing the plate to act on the rocker plate, a pair of leather cups can be driven to open or close the two water outlets to create a temporary water inlet path. It can match and select one or two heating appliances to achieve water inlet for the selected heating appliances. Its structure is simpler and the cost is also lower.

[0022] The electric three-way valve, its water filling mechanism, and the electric heating tea tray of the present invention can construct a temporary water inlet path by rotating the motor angle switch according to the selected heating appliance, so that water can be supplied from the same water storage container to the selected heating appliance. Therefore, multiple heating appliances can share the same water storage container.

[0023] When the selected heating appliance stops supplying water, the temporary water inlet path of this electric three-way valve, its water filling mechanism, and the electric heating tea tray still exists. Therefore, it can serve as a return path for the remaining water in the selected heating appliance or water filling mechanism, so that the remaining water in the water passage of each heating appliance or water filling mechanism can be recycled to the water storage container after the water supply stops.

[0024] Figure 1 This is a schematic diagram showing a cross-sectional view of a specific embodiment of the electric three-way valve; Figure 2 yes Figure 1 Schematic diagram of the split-type electric three-way valve; Figure 3 yes Figure 2 A schematic diagram showing the upward angle of the center push plate; Figure 4 This is a schematic diagram of a specific implementation structure of a water-filling mechanism; Figure 5 This is a schematic diagram showing the cross-sectional structure of a specific implementation of an electric heating tea tray. Detailed Implementation

[0025] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings: Reference Figure 1 , Figure 2 and Figure 3 The electric three-way valve of the specific embodiment includes a motor 1, a motor base 2, a push plate 3, a rocker plate 4, a rocker plate seat 5, a pair of cups 6, and a three-way fitting 7; wherein: the top of the cups 6 forms a flange; the bottom edge of the push plate 3 has a different thickness, with one end 31 being higher and the other end 32 being lower, and gradually transitioning from the high end 31 to the low end 32; the push plate 3 is mounted on the motor base 2, and the rotation of the motor 1 can drive the push plate 3 to rotate through a certain angle in the motor base 2, such as 90 degrees or 180 degrees; the rocker plate 4 and the cups 6 are respectively mounted on the upper and lower parts of the rocker plate seat 5, and the two ends of the rocker plate 4 are respectively connected to the two flanges of the first cup 61 and the second cup 62, so that... When the rocker arm 4 is in motion, it can compress or stretch the corresponding rubber cups 61 or 62 at its ends; the pusher plate 3 can, through its lower end 32 and higher end 31 at its bottom edge, act on both ends of the rocker arm 4, causing one end to descend and the other end to rise, or positioning both ends of the rocker arm 4 at the center between the lower end 32 and the higher end 31 at the bottom edge of the pusher plate 3, so that both ends of the rocker arm 4 are at the same horizontal position, neither stretching nor compressing the first rubber cup 61 and the second rubber cup 62; the tee fitting 7 has a water inlet 71 and a first water outlet 72 and a second water outlet 73, and the first rubber cup 61 and the second rubber cup 62 can be selectively closed or opened respectively. The corresponding first outlet 72 and second outlet 73 are opened, or the first and second diaphragm cups 61 and 62 do not seal the first outlet 72 and second outlet 73 respectively; the motor base 2, rocker seat 5 and tee 7 are assembled together, and the rotation of the motor 1 can drive the push plate 3 to rotate through a certain angle, so that the lower end 32 of the bottom edge of the push plate 3 can selectively press down a certain end of the rocker 4. For example, the lower end 32 can compress the first diaphragm cup 61 through one end of the rocker 4, and the first diaphragm cup 61 can seal the first outlet 72. At the same time, the other end of the rocker 4 is raised, and the other end can stretch the second diaphragm cup 62, and the second diaphragm cup 62 can open the first outlet 72. The second outlet 73 can be closed by compressing the second cup 62 through one end of the rocker plate 4 from the lower end 32. At the same time, the other end of the rocker plate 4 is raised, which stretches the first cup 61. The first cup 61 can open the first outlet 72. Alternatively, the two ends of the rocker plate 4 can be positioned at the center between the lower end 32 and the upper end 31 of the bottom edge of the push plate 3, so that the two ends of the rocker plate 4 are at the same horizontal position, neither stretching nor compressing the first cup 61 and the second cup 62, so that the first cup 61 and the second cup 62 do not close the first outlet 72 and the second outlet 73 respectively.

[0026] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The water supply mechanism in the specific implementation includes: Figure 1 The electric three-way valve and the return water pump D, wherein the return water pump D supplies water to the water inlet 71 of the three-way valve.

[0027] Thus, when the return water pump D is working, water is drawn into inlet 71. Whether the motor 1 rotates at a certain angle or not, the push plate 3 and rocker arm 4 can determine whether one of the two rubber cups opens one outlet and the other closes the other outlet, or whether neither outlet is closed. This temporarily creates an inlet path, allowing water to flow from inlet 71 to the opened first outlet 72 or second outlet 73, or simultaneously from inlet 71 to both outlets 72 and 73. Furthermore, when the return water pump D stops working, the motor 1 does not rotate further. Therefore, the temporarily created inlet path remains, allowing any remaining water at outlet 72 or 73 to flow back to the return water pump via inlet 71 through the temporarily created inlet path.

[0028] Reference Figure 5 The electric tea tray in this specific embodiment includes a platform, two heating appliance bases mounted on the platform, and the water filling mechanism described above. The water inlets of the two heating appliance bases are respectively connected to the first water outlet 72 and the second water outlet 73 of the water filling mechanism. Thus, when the return water pump D is connected to the water storage container located below, the rotation angle switch of the motor in the electric three-way valve can be used to control the selection of the appliance, establishing a temporary water inlet passage between the first water outlet, the second water outlet, and the water inlet, and controlling the start of the return water pump. This allows water to flow from the water storage container to the selected heating appliance or simultaneously to both heating appliances.

Claims

1. An electric three-way valve, comprising a motor, a three-way component, and a first and a second piston cup; wherein, The tee fitting has an inlet and a first outlet and a second outlet. The first and second diaphragms can respectively close or open the first and second outlets. It is characterized by also including a push plate and a rocker arm. A motor can drive the push plate to rotate through a certain angle, and by utilizing the different thicknesses of the bottom edge of the push plate, the rocker arm's two ends are raised while the other end lowers. The two ends of the rocker arm can respectively stretch / compress or compress / stretch the first and second diaphragms, allowing the first and second diaphragms to selectively open / close or close / open the first and second outlets. Alternatively, the two ends of the rocker arm can be at the same horizontal position, with neither end stretching or compressing the first and second diaphragms, allowing the first and second diaphragms to simultaneously not close the first and second outlets.

2. A water filling mechanism, comprising a return water pump, characterized in that, It also includes the electric three-way valve as described in claim 1, which supplies water to the inlet of the three-way component by a return water pump.

3. An electric tea tray, comprising a platform and two heating appliance bases mounted on the platform, characterized in that, It also includes the water filling mechanism as described in claim 2, wherein the water inlets of the two heating appliance bases are respectively connected to the first water outlet and the second water outlet of the water filling mechanism.

4. The electric heating tea tray according to claim 3, characterized in that, It also includes a control mechanism and a water level detection mechanism. When two heating appliances are simultaneously filled with water, the water level detection mechanism can detect the water level in each of the two heating appliances separately. When the water level in one of the heating appliances reaches the maximum water level, the control mechanism can automatically switch the mode, changing the simultaneous water filling mode to the individual water filling mode, and continue to fill the heating container whose water level has not reached the maximum water level.

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