Electric heating faucet

Abstract

The invention discloses an electric heating faucet, and relates to the technical field of electric heating faucets, the electric heating faucet is divided into a water outlet control end and a heating end, the water outlet control end is arranged above a table top, the heating end is arranged below the table top, a water outlet control area comprises a control handle, and when the control handle is located at a closing gear, the water outlet control end does not discharge water, and the heating end does not heat; when a control handle is located in an induction area, an electromagnetic valve in an infrared induction area needs to be triggered to be opened (a circuit board heating program is started), a starting adhesive film is jacked up, a pressure switch mechanism is in an open state, a heating pipe in a heating water tank works to heat water, and hot water flows out of a water outlet control end; when the control handle is located in the normally-open area, the water outlet way bypasses the electromagnetic valve, water is directly discharged, and use is not affected under the power failure condition. According to the electric heating faucet, the overall size is reduced, and meanwhile, the size of the heating end located below the table top can be properly increased, so that the heating efficiency of the electric heating faucet is improved, and the problem that outlet water is not hot enough in winter is solved.

Description

Technical Field

[0001] The invention relates to the technical field of electric water faucets, in particular to an electric water faucet. Background Art

[0002] At present, electric heating faucets are mainly divided into several forms, such as electric water faucets and small kitchen treasures. In the process of using common electric water faucets in winter, due to the low water inlet temperature, the water output is not hot enough, and the power of the heating tube is difficult to increase due to the size limitation. The electric water faucets have the problem that the heating device and control device are all inside the electric water faucet, which is large in size on the basin and not beautiful enough. As the small kitchen treasure needs to be installed under the basin, the water temperature display and water temperature setting must be operated under the basin, there is no human-computer interaction interface, and the small kitchen treasure cannot realize infrared sensing water output when used with traditional faucets; in addition, since the power cord of the small kitchen treasure must be connected under the basin, some customers do not have wiring terminals under the basin at home and cannot use it. Based on the problems existing in existing electric heating faucets, it is necessary to provide a new electric water faucet. Summary of the invention

[0003] The purpose of the present invention is to provide an electric water faucet to solve the problems existing in the above-mentioned prior art. The electric water faucet is divided into a water outlet control end and a heating end which are separately arranged, thereby improving the installation applicability of the electric water faucet. At the same time, the heating power of the heating end is greater, thereby better solving the problem of the water outlet temperature not being hot enough.

[0004] To achieve the above-mentioned purpose, the present invention provides the following scheme: the present invention provides an electric water faucet, comprising a water outlet control end and a heating end, the heating end is arranged below the basin, and the water outlet control end is located above the basin; the water inlet of the heating end is connected with the water inlet hose, and the top of the heating end is connected with the water outlet control end; the water outlet control end comprises a faucet body and a water outlet control area, the faucet body is equipped with a solenoid valve, and the water outlet control area is used to control the on and off of the solenoid valve; the heating end is equipped with a heating tube, and the control main board is used to control the working state of the heating end and the water outlet control end; the water outlet control area comprises a control handle, and the control The handle has three corresponding gears: off, sensing area and normally open area. The control handle is used to adjust the working state of the electric water faucet; the heating end includes a heating water tank and a pressure switch mechanism, and the pressure switch mechanism includes a starting film; when the control handle is in the off gear, the heating end does not discharge water or heat; when the control handle is in the sensing area, the infrared sensing area is triggered to open the solenoid valve and the heating program in the circuit board of the heating end is started, the starting film is lifted up, the pressure switch mechanism is in the open state, the heating pipe in the heating water tank works to heat the water, and the water outlet control end discharges hot water; when the control handle is in the normally open area, the water outlet bypasses the solenoid valve and directly discharges water.

[0005] In one embodiment, a water outlet elbow is installed at the water outlet end of the faucet body.

[0006] In one embodiment, the water outlet control area includes an infrared sensing area. When the control handle corresponds to the sensing area, the infrared sensing area is in a working state. The infrared sensing area is used to control the on and off of the solenoid valve.

[0007] In one embodiment, a display screen is provided on the faucet body, and a display interface electrically connected to a control mainboard, a hot and cold water switching button, and a temperature raising and lowering adjustment button are provided on the display screen.

[0008] In one embodiment, the control mainboard is arranged at the water outlet control end or the heating end, and the control mainboard is connected to the power supply through a power line; the water outlet control end or the heating end is provided with a working indicator light.

[0009] In one embodiment, a heating end connecting fixture is provided between the water outlet control end and the heating end, the heating end connecting fixture is located at the bottom of the basin, and the upper and lower ends of the heating end connecting fixture are respectively connected to the water outlet control end and the heating end; the heating end fixed connecting fixture includes a left connecting member cover and a right connecting member cover, the left connecting member cover and the right connecting member cover are symmetrically arranged, one end of the left connecting member cover and the right connecting member cover are hinged, and the other end is locked by a snap connection.

[0010] In one embodiment, the upper portion of the heating end fixed connector is connected to the bottom external thread of the water outlet control end via an internal thread, a connector fixing groove is provided at the bottom of the heating end fixed connector, and the connector fixing groove is assembled on the top of the heating end, and the water outlet of the heating end is connected to the water inlet of the water outlet control end via a connecting water pipe, and the connecting water pipe and the control panel connecting line are both provided in the cavity of the heating end fixed connector.

[0011] In one embodiment, the power cord of the electric faucet is plugged into a socket on the top of the basin or into a socket on the bottom of the basin; when the power cord of the electric faucet is plugged into the socket on the bottom of the basin, one end of the power cord is connected to the heating end, and the other end is directly plugged into the socket located at the bottom of the basin; when the power cord of the electric faucet is plugged into the socket on the top of the basin, a threading hole is provided on the heating end fixed connection piece, one end of the power cord is connected to the heating end, and the other end passes through the threading hole and enters the interior of the heating end fixed connection piece, and then passes through the top of the heating end fixed connection piece and is connected to the socket located at the top of the basin.

[0012] In one embodiment, the pressure switch mechanism also includes a switch moving contact, a power switch static contact, a water path at the upper end of the film, and a connecting hole at the lower end of the film. A normally open pipeline and a pressure differential switch pipeline are arranged in the heating water tank. The water inlet of the normally open pipeline is connected to the water inlet hose, and the water outlet of the normally open pipeline is respectively connected to the pressure differential switch pipeline and the inner cavity of the heating water tank. The pressure switch mechanism is located at the upper part of the heating water tank, the water inlet of the connecting hole at the lower end of the film is connected to the normally open pipeline, and a starting film is arranged in the cavity of the pressure differential switch pipeline. A spring is connected to the bottom of the starting film, and the bottom end of the spring is sunken in the bottom of the cavity of the differential pressure switch pipeline. A ejector pin is connected to the top of the starting film, and the top of the ejector pin passes through the cavity of the differential pressure switch pipeline and is installed with a top cap, on which a switch moving contact is installed. A switch fixed contact is arranged on the top of the differential pressure switch pipeline, and the positions of the switch moving contact and the switch fixed contact correspond to each other up and down; a water channel at the upper end of the film is opened on the side of the cavity of the differential pressure switch pipeline, which is connected to the water outlet hole of the heating water tank; the top of the heating water tank is connected to the water outlet control end.

[0013] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0014] The electric water faucet in the present invention is divided into a water outlet control end and a heating end. The water outlet control end is above the countertop, and the heating end is below the countertop, so that the volume of the upper faucet is reduced by two times. While achieving the overall volume reduction, the volume of the heating end below the countertop can be appropriately increased, thereby increasing the power of the heating end, thereby improving the heating efficiency of the electric water faucet, thereby solving the problem of insufficiently hot water in winter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the electric water faucet;

[0017] Figure 2 for Figure 1 A in the enlarged view;

[0018] Figure 3 This is the installation diagram of the electric water faucet;

[0019] Figure 4 This is the working principle diagram of the electric water faucet;

[0020] Figure 5 for Figure 4 The enlarged view of point B in the figure;

[0021] Figure 6 This is the working principle diagram of the heating end;

[0022] Figure 7 This is a diagram of an installation method for an electric water faucet;

[0023] Figure 8 It is a schematic diagram of the structure of the fixed connection piece of the heating end;

[0024] Fig. 9 This is the assembly effect diagram of the heating end fixing connector;

[0025] Fig.10 The working principle diagram of the electric water faucet when the control handle is in the closed state;

[0026] Fig.11 This is a working principle diagram of the electric water faucet when the control handle is located in the sensing area;

[0027] Fig.12 This is a working principle diagram of the electric water faucet when the control handle is in the normally open area;

[0028] Among them, 1. Water outlet elbow; 2. Faucet body; 3. Display interface; 4. Hot and cold water conversion button; 5. Temperature adjustment button; 6. Infrared sensing area; 7. Control handle; 8. Basin; 9. Fixing nut; 10. Heating end connection fixture; 11. Power cord; 12. Working indicator light; 13. Heating end; 14. Power supply; 15. Water inlet hose; 16. Water inlet angle valve; 17. Solenoid valve; 18. Heating pipe; 19. Water inlet waterway; 20. Connection hole at the bottom of the film ; 21. Spring; 22. Auxiliary top piece; 23. Starting film; 24. Water-sealing film; 25. Ejector pin; 26. Top cap; 27. Switch moving contact; 28. Switch fixed contact; 29. ​​Water channel at the upper end of the film; 30. Water outlet; 31. Heating water tank; 32. Internal thread; 33. Buckle; 34. Connector left cover; 35. Connector right cover; 36. Threading hole; 37. Connector fixing groove; 38. Connecting water pipe; 39. Control panel connecting line; 40. Pressure switch mechanism. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide an electric water faucet to solve the problems existing in the above-mentioned prior art. The electric water faucet is divided into a water outlet control end and a heating end which are separately arranged, thereby improving the installation applicability of the electric water faucet. At the same time, the heating power of the heating end is greater, thereby better solving the problem of the water outlet temperature not being hot enough.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-Figure 12 As shown, the present invention provides an electric water faucet, including a water outlet control end and a heating end 13, the heating end 13 is arranged below the basin 8, and the water outlet control end is located above the basin 8; the water inlet of the heating end 13 is connected to the water inlet hose 15, and the water inlet angle valve 16 is arranged on the water inlet hose 15, and the top of the heating end 13 is connected to the water outlet control end through 38 and a connecting water pipe; the water outlet control end includes a faucet body 2 and a water outlet control area, the faucet body 2 is equipped with a solenoid valve 17, and the water outlet control area is used to control the on and off of the solenoid valve 17; the heating end 13 is equipped with a heating tube, and the control main board is used to control the working state of the heating end 13 and the water outlet control end. The water outlet control area includes a control handle 7, and the control handle 7 corresponds to three gears: closed, induction area, and normally open area, and the control handle 7 is used to adjust the working state of the electric water faucet. The heating end 13 includes a heating water tank 31 and a pressure switch mechanism 40, and the pressure switch mechanism 40 includes a starting film 23; when the control handle 7 is in the closed position, the heating end 13 does not work, the control handle 7 closes the water outlet, the pressure at the upper end and the lower end of the starting film 23 of the pressure switch mechanism 40 is equal, the switch moving contact 27 and the switch fixed contact 28 are in a separated state, the electric water faucet does not discharge water or heat, and the infrared sensing area 6 is triggered (the circuit board heating program is started). Since the switch moving contact 27 and the switch fixed contact 28 are in a separated state, the heating tube 18 cannot be powered on for heating; when the control handle 7 is in the sensing area, the water path of the control handle 7 leads to the solenoid valve water path, and the infrared sensing area 6 needs to be triggered. The solenoid valve 17 is opened and the heating program of the circuit board is started at the same time After starting, the machine starts to discharge water, the pressure on the upper end of the starting film 23 of the pressure switch mechanism 40 is released, and the lower end of the starting film 23 is lifted up by the water pressure, pushing the switch moving contact 27 to combine with the switch fixed contact 28, and the heating tube 18 starts to be energized. The heating tube 18 works to heat the water, and the water outlet control end discharges hot water; when the control handle 7 is in the normally open area, the water path of the control handle 7 leads to the water outlet elbow 1, avoiding the solenoid valve 17, and directly discharges water from the water outlet elbow 1. When a power outage occurs, the solenoid valve 17 cannot work, and water can still be discharged normally; when the control handle 7 is in the normally open area, the switch moving contact 27 and the switch fixed contact 28 of the pressure switch mechanism 40 are combined. If hot water is needed, the infrared sensing area 6 must be triggered to turn on the heating program of the circuit board, and the heating tube 18 starts to heat and discharge water.

[0033] In one of the embodiments, a water outlet elbow 1 is installed at the water outlet end of the faucet body 2, and the use and integration of the control main board, circuit board and heating program can all use commercially available conventional accessories, which belongs to conventional technology and will not be elaborated here.

[0034] In one embodiment, the water outlet control area includes an infrared sensing area 6. When the control handle 7 corresponds to the sensing area, the infrared sensing area 6 is in a working state, and the infrared sensing area 6 is used to control the on and off of the electromagnetic valve 17. When the control handle 7 is dialed into the sensing area, the infrared sensing area 6 is in a working state. When the hand approaches the infrared sensing area 6 and waves to trigger, the electric water faucet starts to work, the electromagnetic valve 17 is in an open state, and the water outlet elbow 1 starts to discharge water.

[0035] In one embodiment, a display screen is provided on the faucet body 2, and a display interface 3, a hot and cold water switching button 4, and a temperature adjustment button 5, which are electrically connected to the control main board, are provided on the display screen. The display interface 3 is used to display the currently set heating temperature and the current water temperature, the hot and cold water switching button 4 can be used to adjust the hot and cold water mode of the electric water faucet, and the temperature adjustment button 5 is used to adjust the heating temperature of the electric water faucet. These display and adjustment methods are mature technologies in the prior art and will not be described in detail here.

[0036] In one embodiment, the control main board is arranged at the water outlet control end or the heating end 13, and the control main board is connected to the power supply 14 through the power line 11; the water outlet control end or the heating end 13 is provided with a working indicator light 12, and the working indicator light 12 is used to display whether the electric water faucet is currently connected to electricity. Figure 1 and Figure 6 As shown, the power cord 11 of the electric water faucet can be connected to the socket on the basin 8 or the socket under the basin 8 according to actual safety needs, thereby improving the installation applicability of the electric water faucet.

[0037] In one of the embodiments, a heating end connecting fixture 10 is provided between the water outlet control end and the heating end 13, the top of the heating end connecting fixture 10 is assembled on the bottom of the basin 8 through a fixing nut 9, and the upper and lower ends of the heating end connecting fixture 10 are respectively connected to the water outlet control end and the heating end 13.

[0038] like Figure 8-Figure 9As shown, the heating end fixed connector 10 includes a left connector cover 34 and a right connector cover 35, and the left connector cover 34 and the right connector cover 35 are symmetrical in structure, one end of the left connector cover 34 and the right connector cover 35 are hinged, and the other end is connected and locked by a buckle 33, and a threading hole 36 is provided on the heating end fixed connector 10, one end of the power cord 11 is connected to the heating end 13, and the other end passes through the threading hole 36 and enters the interior of the heating end fixed connector 10, and then passes out from the top of the heating end fixed connector 10, which is only one way of arranging the power cord 11, and other ways of arranging the power cord 11 can be set according to actual production needs and installation needs. The upper part of the heating end fixed connector 10 is connected to the bottom external thread of the water outlet control end through the internal thread 32. A connector fixing groove 37 is set at the bottom of the heating end fixed connector 10. The connector fixing groove 37 is assembled on the top of the heating end 13. The water outlet of the heating end 13 is connected to the water inlet of the water outlet control end through a connecting water pipe 38. The connecting water pipe 38 can be a corrugated pipe. The connecting water pipe 38 and the control panel connecting line 39 are both set in the cavity of the heating end fixed connector 10.

[0039] In one embodiment, the pressure switch mechanism 40 also includes a switch moving contact 27, a switch static contact 28, a water path 29 at the upper end of the film and a connecting hole 20 at the lower end of the film. A normally open pipeline and a pressure differential switch pipeline are arranged in the heating water tank 31. A normally open pipeline and a pressure differential switch pipeline are arranged in the heating water tank 31. The water inlet of the normally open pipeline is connected to the water inlet hose 15, and the water outlet of the normally open pipeline is respectively connected to the pressure differential switch pipeline and the heating water tank 31. The water inlet of the connecting hole 20 at the lower end of the film is connected to the normally open pipeline. A starting film 23 is arranged in the cavity of the pressure differential switch pipeline, and the bottom of the starting film 23 is passed through The auxiliary top piece 22 is connected to a spring 21, the bottom end of the spring 21 is sunken in the bottom of the cavity of the pressure differential switch pipeline, the top of the starting film 23 is connected to a pin 25, the top of the pin 25 passes through the cavity of the pressure differential switch pipeline and is installed with a top cap 26, a switch moving contact 27 is installed on the top cap 26, a switch fixed contact 28 is arranged on the top of the pressure differential switch pipeline, and the positions of the switch moving contact 27 and the switch fixed contact 28 correspond to each other up and down; a film upper end water channel 29 connected to the water outlet end of the hot water inlet tank 31 is opened on the side of the cavity of the pressure differential switch pipeline; the top of the heating water tank 31 is also connected to the water outlet control end.

[0040] like Fig.10As shown, when the control handle 7 is in the closed area, the pressure at the upper and lower ends of the starter film 23 in the pressure switch mechanism 40 is equal, the switch moving contact 27 and the switch fixed contact 28 are in a separated state, the machine does not discharge water or heat, and the infrared sensing area 6 is triggered to discharge water; when the control handle 7 is in the sensing area, the infrared sensing area 6 is triggered, the solenoid valve 17 is opened and the heating program at the heating end is started, the pressure at the upper end of the starter film 23 in the pressure switch mechanism 40 is released, and the water pressure at the lower end of the starter film 23 lifts the starter film 23, pushing the switch moving contact 27 and the switch fixed contact 28 to combine, the heating tube 18 starts to be powered on and heated, and the faucet discharges hot water; when the control handle 7 is in the normally open area, the faucet starts to discharge water, and the water outlet bypasses the solenoid valve 17, so that the use is not affected when the solenoid valve 17 cannot be started due to power outage. When it is necessary to close, just rotate the control handle 7 to the closed position.

[0041] When the electric water faucet is in working state, first turn the control handle 7 of the water outlet control area to the sensing area. At this time, the infrared sensing area 6 is in a waiting state. The infrared sensing of the infrared sensing area 6 is used to control the electromagnetic valve 17 and the heating program of the circuit board. The infrared sensing area 6 is triggered by waving the hand close to it. After the infrared sensing area 6 is triggered, the signal is transmitted to the control panel. The control panel controls the electromagnetic valve 17 to open and turns on the heating program of the circuit board at the same time. Before the infrared sensing area 6 triggers the electromagnetic valve 17 to open, the electric water faucet is in a closed state. Figure 5 As shown, the pressure of the lower connecting hole 20 of the film and the water path 29 at the upper end of the film in the film mechanism is the same, at this time, the starter film 23 does not work, and the switch moving contact 27 and the switch fixed contact 28 are in a separated state; after the infrared sensing area 6 is triggered, the solenoid valve 17 is opened, and the water pressure at the water outlet 30 is released. Since the water path 29 at the upper end of the film is connected to the water outlet 30, the pressure of the water path 29 at the upper end of the film is released, and the lower connecting hole 20 of the film has water inlet pressure, the starter film 23 is pushed upward by the water pressure at the lower end, and the starter film 23 pushes the ejector pin 25 to push up the top cap 26, and the top cap 26 has The movable contact 27 of the movable switch moves up and touches the fixed contact 28 of the switch, so that the fixed contact 28 and the movable contact 27 of the switch are electrically connected, and the heating tube of the heater starts to be powered and heated; the infrared sensing area 6 is triggered by waving the hand close again, and the infrared sensing area 6 transmits the signal to the control panel after being triggered. The control panel controls the solenoid valve 17 to close and the heating program of the circuit board is turned off at the same time, the electric hot water faucet stops discharging water, and the pressure of the connecting hole 20 at the lower end of the film in the film mechanism of the starting film 23 is the same as that of the water channel 29 at the upper end of the film, the fixed contact 28 and the movable contact 27 of the switch are separated and restored to the initial state.

[0042] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0043] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An electric water faucet, characterized in that: It includes a water outlet control end, a connecting part and a heating end, wherein the upper and lower ends of the connecting part are connected to the water outlet control end and the heating end respectively; the water inlet of the heating end is connected to the water inlet hose, the water outlet control end includes a faucet body and a water outlet control area, the faucet body is equipped with a solenoid valve, and the water outlet control area is used to control the on and off of the solenoid valve; the heating end is equipped with a heating tube, and the control mainboard is used to control the working state of the heating end and the water outlet control end; The water outlet control area includes a control handle, and the control handle corresponds to three gears: closed, sensing area and normally open area. The control handle is used to adjust the working state of the electric water faucet; the heating end includes a heating water tank and a pressure switch mechanism, and the pressure switch mechanism includes a starting film; when the control handle is in the closed gear, the water outlet control end does not discharge water and the heating end does not heat; when the control handle is in the sensing area, the infrared sensing area is triggered to open the solenoid valve and the heating program of the heating end is started, the starting film is lifted, the pressure switch mechanism is in an open state, and the water outlet control end discharges hot water; when the control handle is in the normally open area, the water outlet bypasses the solenoid valve and directly discharges water.

2. The electric water faucet according to claim 1, characterized in that: The water outlet control area includes an infrared sensing area. When the control handle corresponds to the sensing area, the infrared sensing area is in a working state. The infrared sensing area is used to control the on and off of the solenoid valve.

3. The electric water faucet according to claim 1, characterized in that: The faucet body is provided with a display screen, and the display screen is provided with a display interface electrically connected to a control mainboard, a hot and cold water switching button, and a temperature raising and lowering adjustment button.

4. The electric water faucet according to claim 1, characterized in that: The connecting part adopts a heating end connecting fixing piece, and the heating end connecting fixing piece is located at the bottom of the basin. The upper and lower ends of the heating end connecting fixing piece are respectively connected to the water outlet control end and the heating end; the heating end fixed connecting piece includes a left connecting piece cover and a right connecting piece cover, and the left connecting piece cover and the right connecting piece cover are symmetrically arranged, one end of the left connecting piece cover and the right connecting piece cover are hinged, and the other end is locked by a snap connection.

5. The electric water faucet according to claim 4, characterized in that: The upper part of the heating end fixed connector is connected to the bottom external thread of the water outlet control end through an internal thread, a connector fixing groove is arranged at the bottom of the heating end fixed connector, and the connector fixing groove is assembled on the top of the heating end, and the water outlet of the heating end is connected to the water inlet of the water outlet control end through a connecting water pipe, and the connecting water pipe and the control panel connecting line are both arranged in the cavity of the heating end fixed connector.

6. The electric water faucet according to claim 4, characterized in that: The heating end fixing connector is provided with a threading hole, and the power line is threaded in the threading hole.

7. The electric water faucet according to claim 1, characterized in that: The pressure switch mechanism also includes a switch moving contact, a switch static contact, a water path at the upper end of the film and a connecting hole at the lower end of the film. A normally open pipeline and a pressure differential switch pipeline are arranged in the heating water tank. The top of the heating water tank is connected to the water outlet control end, the water inlet of the normally open pipeline is connected to the water inlet hose, and the water outlet of the normally open pipeline is respectively connected to the pressure differential switch pipeline and the inner cavity of the heating water tank. The pressure switch mechanism is located at the upper part of the heating water tank, the water inlet of the connecting hole at the lower end of the film is connected to the normally open pipeline, the starting film is arranged in the cavity of the pressure differential switch pipeline, the switch static contact is arranged on the top of the pressure differential switch pipeline, and the starting film is used to drive the switch moving contact to contact or separate from the switch static contact.

8. The electric water faucet according to claim 7, characterized in that: A spring is connected to the bottom of the starting film, and the bottom end of the spring is sunken in the bottom of the cavity of the pressure differential switch pipeline. A ejector pin is connected to the top of the starting film, and the top of the ejector pin passes through the cavity of the pressure differential switch pipeline and is installed with a top cap, on which the switch moving contact is installed, and the positions of the switch moving contact and the switch fixed contact correspond to each other up and down; a water channel at the upper end of the film is opened on the side of the cavity of the pressure differential switch pipeline and is connected to the water outlet of the heating water tank.

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