Water inlet assembly and electric heating faucet

Abstract

The utility model discloses a water inlet assembly and an electric heating faucet, the water inlet assembly comprises a water inlet connecting piece and a first on-off control device, and a water inlet runner and a water outlet runner are formed in the water inlet connecting piece; the first on-off control device has a first position state for promoting blockage of the water inlet flow channel and the water outlet flow channel and a second position state for promoting conduction of the water inlet flow channel and the water outlet flow channel; a branch flow channel and a second on-off control device are further arranged in the water inlet connecting piece, and the second on-off control device has a third position state enabling the branch flow channel and the water inlet flow channel to be blocked and a fourth position state enabling the branch flow channel and the water inlet flow channel to be communicated. According to the technical scheme, the branch flow channel and the second on-off control device serve as standby schemes, when the first on-off control device fails, the branch flow channel and the second on-off control device are started, it can be ensured that liquid flow still can flow smoothly, the error-tolerant rate of the electric heating faucet is higher, and user experience is better.

Description

Technical Field

[0001] The utility model relates to the technical field of electric water faucets, in particular to a water inlet component and an electric water faucet. Background Art

[0002] Electric water faucets are widely used in home kitchens and public washrooms because of their instant heating function. Based on the demand for the liquid flow cut-off function, a control valve assembly is usually set to realize the manual control of the liquid flow cut-off function. At the same time, for the convenience and intelligence of use, it is also considered to set an on-off electrical device inside the electric water faucet to control the liquid flow cut-off. Based on the considerations of smooth and sensitive on-off, the on-off electrical device is usually preferably a solenoid valve. However, after long-term use or when there is a problem with the quality of the solenoid valve itself or the current is unstable, the solenoid valve may not work and be in a normal state of cut-off, so that no matter how the trigger designed on the electric water faucet is triggered, no water will flow out. At the same time, because the solenoid valve is a component configured inside the electric water faucet, the user cannot directly judge that the solenoid valve is faulty, and it is not easy to repair or replace the solenoid valve, and the user experience is poor. Therefore, a backup plan is needed to deal with the purpose of smooth liquid flow when the solenoid valve fails. Utility Model Content

[0003] In view of the above problems existing in the prior art, a water inlet assembly and an electric water faucet are now provided to overcome at least one of the above technical defects.

[0004] The specific technical solutions are as follows:

[0005] A water inlet assembly is used in an electric water faucet, comprising a water inlet connector, a first on-off control device installed on the water inlet connector, and a water inlet flow channel and a water outlet flow channel connected to each other are formed in the water inlet connector, and the first on-off control device has a first position state that causes the water inlet flow channel to be blocked with the water outlet flow channel and a second position state that causes the water inlet flow channel to be connected with the water outlet flow channel;

[0006] The water inlet connecting piece also has a branch flow channel connecting the water inlet channel and the water outlet channel. The water inlet connecting piece is also provided with a second on-off control device, which is at least partially accommodated in the branch flow channel and has a third position state that causes the branch flow channel to be blocked with the water inlet channel and a fourth position state that causes the branch flow channel to be connected with the water inlet channel.

[0007] Preferably, the second on-off control device includes a water circuit switching pin, and the water inlet connecting piece is provided with an installation hole connected to the branch flow channel. The water circuit switching pin is arranged in the installation hole and can move along the axial direction of the installation hole. In the third position state, one end of the water circuit switching pin extends into the branch flow channel and blocks the branch flow channel and at least one of the water inlet flow channel and the water outlet flow channel.

[0008] Preferably, the installation through hole penetrates outward to the outside of the water inlet connector, and the water channel switching pin can be disengaged from the installation through hole or hidden in the installation through hole.

[0009] Preferably, the installation through hole has an internal thread, the outer periphery of the waterway switching pin has an external thread matching the internal thread, and the end of the waterway switching pin away from the branch flow channel also has a tool matching structure.

[0010] Preferably, at least one sealing ring is also mounted on the outer periphery of one end of the waterway switching pin adjacent to the tributary flow channel, and the water inlet flow channel and the mounting through hole are connected by a first through hole, and the first through hole is closed by the outer peripheral wall of the waterway switching pin or the tributary flow channel and the mounting through hole are blocked by the sealing ring.

[0011] Preferably, the first on-off control device is a bistable solenoid valve, an on-off control chamber is formed on the water inlet connecting piece, the water inlet flow channel is connected to the on-off control chamber, the water outlet flow channel is connected to the on-off control chamber by a second through hole, and the film end cover of the bistable solenoid valve is accommodated in the on-off control chamber and is used to block or conduct the second through hole.

[0012] The utility model also provides an electric water faucet, comprising an inner tank, a water inlet assembly mounted on the upper end of the inner tank, and a water outlet assembly mounted on the lower end of the inner tank and as described above, wherein a water storage and heating chamber is formed in the inner tank, and a water outlet channel is formed in the water outlet assembly, the water inlet flow channel, the water outlet flow channel, and the branch flow channels in the water inlet assembly together constitute a water inlet channel in the water inlet assembly, and the water outlet channel and the water inlet channel are both connected to the water storage and heating chamber.

[0013] Preferably, it also includes a casing assembled on the outside of the inner tank, the water inlet assembly has a mounting hole and a water circuit switching pin accommodated in the mounting hole, and a fourth hole is opened on the casing opposite to the mounting hole, and the water circuit switching pin is allowed to escape from the fourth hole.

[0014] Preferably, the water outlet assembly includes a water tank end cover, a water outlet elbow rotatably mounted on the water tank end cover, and a touch sensor sheet fixedly mounted on the water tank end cover, and the water outlet elbow is made of metal material, the inner side of the touch sensor sheet abuts against the outer wall of the water outlet elbow, and a control circuit board is also arranged in the inner tank, and the first on-off control device and the touch sensor sheet are electrically connected to the control circuit board respectively.

[0015] The beneficial effects of the above technical solution are:

[0016] The water inlet assembly includes a water inlet connector, a first on-off control device, and a second on-off control device, and the water inlet connector is provided with an inlet channel, a tributary channel, and an outlet channel. The first on-off control device controls the on-off of the water inlet channel and the outlet channel, and the second on-off control device controls the on-off of the tributary channel and the inlet channel, so that the tributary channel and the second on-off control device are used as backup options. When the first on-off control device fails and the water inlet channel and the water outlet channel remain blocked at all times, the tributary channel and the second on-off control device are enabled to ensure that the liquid can still flow smoothly, thereby making the electric water faucet more fault-tolerant and providing a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The explosion of the water inlet assembly of the utility model Figure 1 ;

[0018] Figure 2 The explosion of the water inlet assembly of the utility model Figure 2 ;

[0019] Figure 3 This is a cross-sectional view of the water inlet assembly of the utility model Figure 1 ;

[0020] Figure 4 This is a cross-sectional view of the water inlet assembly of the utility model Figure 2 ;

[0021] Figure 5 It is a cross-sectional view of the solenoid valve in the water inlet assembly of the utility model;

[0022] Figure 6 It is a three-dimensional diagram of the electric water faucet of the utility model;

[0023] Figure 7 It is an exploded view of the electric water faucet of the utility model. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, the following embodiments are combined with the accompanying drawings to specifically describe the utility model. The radial inward direction of the water inlet connector is defined as the direction from outside to inside in this embodiment.

[0025] See also Figures 1 to 5 As shown in , the water inlet assembly provided in this embodiment is applied to an electric hot water faucet, comprising a water inlet connector 1, a first on-off control device 2 installed on the water inlet connector 1, and a connected water inlet flow channel 4 and a water outlet flow channel 5 are formed in the water inlet connector 1, and the first on-off control device 2 has a first position state that causes the water inlet flow channel 4 and the water outlet flow channel 5 to be blocked and a second position state that causes the water inlet flow channel 4 and the water outlet flow channel 5 to be connected; wherein,

[0026] The water inlet connector 1 also has a branch flow channel 6 connecting the water inlet channel 4 and the water outlet channel 5. The water inlet connector 1 is also provided with a second on-off control device 3. The second on-off control device 3 is at least partially accommodated in the branch flow channel 6, and has a third position state that causes the branch flow channel 6 to be blocked with the water inlet channel 4 and a fourth position state that causes the branch flow channel 6 to be connected with the water inlet channel 4.

[0027] Based on the above technical scheme, the water inlet component includes a water inlet connector 1, a first on-off control device 2, and a second on-off control device 3, and the water inlet connector 1 is provided with an inlet channel 4, a branch channel 6, and an outlet channel 5, and the first on-off control device 2 controls the on-off of the water inlet channel 4 and the outlet channel 5, and the second on-off control device 3 controls the on-off of the branch channel 6 and the water inlet channel 4, so that the branch channel 6 and the second on-off control device 3 are used as backup solutions. When the first on-off control device 2 fails and the water inlet channel 4 and the water outlet channel 5 are always blocked, the branch channel 6 and the second on-off control device 3 are enabled to ensure that the liquid can still flow smoothly, so that the electric water faucet has a higher fault tolerance and a better user experience.

[0028] In a preferred embodiment, the second on-off control device 3 includes a water circuit switching pin, and the water inlet connector 1 is provided with a mounting hole 7 connected to the branch flow channel 6. The water circuit switching pin is arranged in the mounting hole 7 and can move along the axial direction of the mounting hole 7. In the third position state, one end of the water circuit switching pin extends into the branch flow channel 6 and blocks the branch flow channel 6 and at least one of the water inlet flow channel 4 and the water outlet flow channel 5. Furthermore, the mounting hole 7 extends outward to the outside of the water inlet connector 1, and the water circuit switching pin can be out of the mounting hole 7 or hidden in the mounting hole 7. That is, the water circuit switching pin can be taken out, replaced, maintained and cleaned, and can be hidden in the mounting hole 7 and is not easy to lose. Furthermore, the mounting through hole 7 has an internal thread, the outer periphery of the waterway switching pin has an external thread that matches the internal thread, and the end of the waterway switching pin that is away from the branch flow channel 6 also has a tool adaptation structure, which can be in the shape of a flat, a cross, a hexagonal, etc., so that it is easy to remove or insert it in a spiral manner through a tool. Obviously, when a structure is adopted in which the tail end of the waterway switching pin is longer and extends out of the mounting hole, it can also be considered to be removed directly by hand or clamped and rotated with a vise without the need to configure the above-mentioned tool adaptation structure.

[0029] As a further preferred embodiment, at least one sealing ring 15 is also mounted on the outer periphery of one end of the waterway switching pin adjacent to the tributary flow channel 6, and the water inlet flow channel 4 and the installation through hole 7 are connected by the first through hole 8, and the first through hole 8 is closed by the outer peripheral wall of the waterway switching pin, or the tributary flow channel 6 and the installation through hole 7 are blocked by the sealing ring 15. That is, the liquid flow first flows from the water inlet through the first through hole 8 into the installation through hole 7, and then flows into the tributary flow channel 6, or it can be determined that the tributary flow channel 6 is a part of the installation through hole 7, the outer wall of the waterway switching pin can close the first through hole 8, and the sealing ring 15 can also be used to close the interface between the tributary flow channel 6 and the installation through hole 7, so as to achieve the purpose of flow channel blocking, but it is obvious that the relative position of the installation through hole 7 and the tributary flow channel 6 can also be adjusted to close the water outlet flow channel 5 and the tributary flow channel 6, and it is not limited to this.

[0030] In a preferred embodiment, in combination Figure 4 and Figure 5 As shown in the figure, the first on-off control device 2 is a bistable solenoid valve, an on-off control chamber 10 is formed on the water inlet connector 1, the water inlet flow channel 4 is connected to the on-off control chamber 10, the water outlet flow channel 5 is connected to the on-off control chamber 10 through the second through hole 9, and the film end cap 12 of the bistable solenoid valve is accommodated in the on-off control chamber 10 and is used to block or conduct the second through hole 9. Specifically, under the action of the coil, valve stem 11 and external water pressure in the bistable solenoid valve, the film end cap 12 can move in the on-off control chamber 10 based on whether the valve stem 11 pushes the film end cap 12, thereby causing the second through hole 9 to be closed or conducted, that is, corresponding to the first position state and the second position state mentioned above. At the same time, the film end cover 12 also has a pressure relief hole 14 and a third through hole 13. The third through hole 13 is used to allow the liquid flow in the on-off control chamber 10 to enter the electromagnetic working chamber in the bistable electromagnetic valve, and the pressure relief hole 14 is used to allow the liquid flow in the electromagnetic working chamber to flow to the water outlet channel 5 to release pressure when the valve stem 11 is retracted, thereby prompting the film end cover 12 to retreat and conduct the second through hole 9. Its working principle is similar to that of the existing electromagnetic valve, so it is omitted here.

[0031] In addition, the above-mentioned first on-off control device 2 can also adopt a structure such as a motor + rack + blocking block to achieve its flow-cutting effect, and the second on-off control device 3 can also be implemented by an electromagnetic valve or other equivalent structures. The mechanical structure used in this embodiment is mainly based on the ability to achieve a backup flow path through manual operation when the electric drive structure of the first on-off control device 2 fails.

[0032] In specific applications, under normal circumstances, the second on-off control device 3 is often in the third position state, and the first on-off control device 2 is used to control the on-off of the flow channel. When the first on-off control device 2, i.e., the solenoid valve, fails and is always in the first position state and cannot switch to the second position state, the second on-off control device 3 can be switched to the fourth position state to achieve the purpose of branch conduction, and as a backup means, the fault tolerance of the water inlet component is improved, thereby providing a better user experience.

[0033] Embodiment 2:

[0034] Combination Figure 6 and Figure 7 As shown in the figure, the electric water faucet provided in this embodiment includes an inner tank 16, a water outlet assembly mounted on the upper end of the inner tank 16, and a water inlet assembly mounted on the lower end of the inner tank 16 and as described in the above-mentioned embodiment 1, and a water storage and heating chamber is formed in the inner tank 16, and a water outlet channel is formed in the water outlet assembly. The water inlet channel 4, the water outlet channel 5, and the branch channel 6 in the water inlet assembly together constitute the water inlet channel in the water inlet assembly, and the water outlet channel and the water inlet channel are both connected to the water storage and heating chamber.

[0035] In a preferred embodiment, the electric water faucet also includes a casing 17 assembled on the outside of the inner tank 16, the water inlet assembly has a mounting hole 7 and a water circuit switching pin accommodated in the mounting hole 7, and a fourth through hole 25 is opened on the casing 17, which is opposite to the mounting through hole 7, and allows the water circuit switching pin to escape from the fourth through hole 25.

[0036] As a further preferred embodiment, the water outlet assembly includes a water tank end cover 19, a water outlet elbow 20 rotatably mounted on the water tank end cover 19, and a touch sensing sheet 21 fixedly mounted on the water tank end cover 19, and the water outlet elbow 20 is made of metal material, and the inward side of the touch sensing sheet 21 abuts against the outer wall of the water outlet elbow 20, and the inner tank 16 is also provided with a control circuit board 18, and the first on-off control device 2 and the touch sensing sheet 21 are respectively electrically connected to the control circuit board 18. The water outlet elbow 20 as a whole can be used as a trigger part, and the working state of the first on-off control device 2 can be controlled via the control circuit board 18, and the purpose of changing the liquid flow interruption can be triggered when the user touches the water outlet elbow 20, which is more intelligent and convenient, and the liquid flow interruption control is more reasonable and reliable, avoiding the situation where, for example, the solution using a far-infrared component as a trigger component conducts the liquid flow based on the user passing by or approaching.

[0037] In addition, the electric water faucet in this embodiment also includes a control valve assembly 22 arranged in the inner tank 16, an electric heating pipe 13 arranged in the inner tank 16, and a digital display assembly arranged on the inner tank 16 and the housing 17. In consideration of simple wiring, the electrical connection of the touch sensor sheet 21 is electrically connected to the control circuit board 18 via the wire board 24 of the digital display assembly. At the same time, the control circuit board 18 assembly is also connected to a power line extending outward from the housing 17, which is a common structure in the field of electric water faucets or a structure that can be ignored in this solution, so it is omitted in this embodiment.

[0038] The above is only a preferred embodiment of the utility model, which is only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences can be made within the spirit and scope defined by the claims of the utility model, but they will all fall within the scope of protection of the utility model.

Claims

1. A water inlet assembly, applied to an electric hot water faucet, comprising a water inlet connector (1), a first on-off control device (2) mounted on the water inlet connector (1), wherein the water inlet connector (1) is provided with a water inlet channel (4) and a water outlet channel (5) connected to each other, wherein the first on-off control device (2) has a first position state for causing the water inlet channel (4) and the water outlet channel (5) to be blocked and a second position state for causing the water inlet channel (4) and the water outlet channel (5) to be connected; characterized in that: The water inlet connection piece (1) is also provided with a branch flow channel (6) connecting the water inlet flow channel (4) and the water outlet flow channel (5). The water inlet connection piece (1) is also provided with a second on-off control device (3). The second on-off control device (3) is at least partially accommodated in the branch flow channel (6) and has a third position state for causing the branch flow channel (6) to be blocked with the water inlet flow channel (4) and a fourth position state for causing the branch flow channel (6) to be connected with the water inlet flow channel (4).

2. The water inlet assembly according to claim 1, characterized in that: The second on-off control device (3) includes a water circuit switching pin, and the water inlet connection piece (1) is provided with a mounting hole (7) connected to the branch flow channel (6). The water circuit switching pin is arranged in the mounting hole (7) and can move along the axial direction of the mounting hole (7). In the third position state, one end of the water circuit switching pin extends into the branch flow channel (6) and blocks the branch flow channel (6) and at least one of the water inlet flow channel (4) and the water outlet flow channel (5).

3. The water inlet assembly according to claim 2, characterized in that: The mounting through hole (7) penetrates outward to the outside of the water inlet connector (1), and the water channel switching pin can be disengaged from the mounting through hole (7) or hidden in the mounting through hole (7).

4. The water inlet assembly according to claim 3, characterized in that: The installation through hole (7) has an internal thread, the outer periphery of the waterway switching pin has an external thread matching the internal thread, and the end of the waterway switching pin facing away from the branch flow channel (6) also forms a tool matching structure.

5. The water inlet assembly according to claim 2, characterized in that: At least one sealing ring (15) is also mounted on the outer periphery of one end of the waterway switching pin adjacent to the branch flow channel (6), and the water inlet flow channel (4) and the mounting through hole (7) are connected via a first through hole (8), and the first through hole (8) is closed by the outer peripheral wall of the waterway switching pin or the branch flow channel (6) and the mounting through hole (7) are blocked by the sealing ring (15).

6. The water inlet assembly according to claim 1 or 2, characterized in that: The first on-off control device (2) is a bistable solenoid valve, the water inlet connector (1) is provided with an on-off control chamber (10), the water inlet channel (4) is connected to the on-off control chamber (10), the water outlet channel (5) is connected to the on-off control chamber (10) via a second through hole (9), and the rubber film end cover (12) of the bistable solenoid valve is accommodated in the on-off control chamber (10) and is used to block or conduct the second through hole (9).

7. An electric water faucet, characterized in that: It comprises an inner tank (16), a water outlet assembly mounted on the upper end of the inner tank (16), and a water inlet assembly mounted on the lower end of the inner tank (16) and as described in any one of claims 1 to 6 above, and a water storage and heating chamber is formed in the inner tank (16), and a water outlet channel is formed in the water outlet assembly, and the water inlet channel (4), the water outlet channel (5), and the branch channel (6) in the water inlet assembly together constitute the water inlet channel in the water inlet assembly, and the water outlet channel and the water inlet channel are both connected to the water storage and heating chamber.

8. The electric water faucet according to claim 7, characterized in that: It also includes a casing (17) mounted on the outside of the inner tank (16), the water inlet assembly having a mounting through hole (7) and a water circuit switching pin accommodated in the mounting through hole (7), and the casing (17) is provided with a fourth through hole (25) opposite to the mounting through hole (7) and allowing the water circuit switching pin to escape from the fourth through hole (25).

9. The electric water faucet according to claim 8, characterized in that: The water outlet assembly comprises a water tank end cover (19), a water outlet elbow (20) rotatably mounted on the water tank end cover (19), and a touch sensing sheet (21) fixedly mounted on the water tank end cover (19), wherein the water outlet elbow (20) is made of metal material, and the inward side of the touch sensing sheet (21) abuts against the outer wall of the water outlet elbow (20), and a control circuit board (18) is further arranged in the inner tank (16), and the first on-off control device (2) and the touch sensing sheet (21) are respectively electrically connected to the control circuit board (18).

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