An electrically heated tap

CN224919923UActive Publication Date: 2026-10-30NINGBO MAITENG ELECTRIC CO LTD
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Patent Information

Application Number
CN202522633512.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-11
Publication Date
2026-10-30
Estimated Expiration
2035-12-11

AI Technical Summary

Technical Problem

[0003]目前的电热水龙头通常通过阀芯调节的方式进行冷水热水调节输送出水,使用时容易出现陈水过多需要放掉较多的水后才能出热水,而且水龙头内部堆积水体后容易造成水压过大影响正常使用

Benefits of technology

[0018]本实用新型提供了一种电热水龙头,其具有机座、连接腔、阀轴和端盖,通过万向接头接通水路后需要出冷水时按动旋钮,水体通过入水口进入外壳内部的通水管中,进入安装板内后由安装槽内的下水口向下流通进入下水腔后由出水孔流出,需要出热水时转动旋钮,水体通过入水口进入外壳内部的通水管中,旋钮转动时候带动传动轴在通水管内转动将传动轴表面的缺口离开下水口无法向下流通,同时档块随传动轴在调节管内转动,原本挡住透水口的档块在转动的过程中逐渐将透水口裸露出来,水体通过透水口进入通水腔后由中空腔底部进入连接腔和中空腔内部,水体在流动的过程中逐渐将胶膜座向上顶出使延伸杆顶部的动触点与连接腔内的静触点接触,线路板接收到信号后控制加热管工作,水体在中空腔内将胶膜座顶出后流入输送腔内,再通过输送腔进机座底部堆积在加热管外侧,加热管工作将水体加热,并在处于下水腔顶部区域的水体温度会最高并流通进入下水腔内后由出水孔向下输送出热水,在中空腔和输送腔内没有水体流动时,通水腔、中空腔和输送腔内部水压强度相同,胶膜座处于水平状态不会向上升起,也避免自动加热出热水的情况,整个装置能够根据需要进行自动调节控制出冷水和热水,仅通过旋转旋钮带动阀轴转动即可实现调节,转动后内部通过接触开关的方式调整控制加热,操作简单方便,降低内部陈水节省水资源,内部水压稳定且输送调节稳定可控。

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Abstract

The utility model discloses an electric heating faucet, include: shell, be provided with knob on the surface, the shell bottom is connected with bottom shell in screw thread, the bottom shell bottom is equipped with the water outlet hole that uniformly penetrates, the base is provided with the installation groove, hollow chamber and delivery chamber, the installation groove is away from one end with hollow chamber intercommunication of knob, the connecting chamber is set up in hollow chamber top, the inside movable of connecting chamber is equipped with the gum film seat, the gum film seat top surface is equipped with the extension rod, the connecting chamber inner wall top and extension rod top surface are provided with static contact and dynamic contact respectively, the valve shaft includes the rotary head and the adjusting pipe. The utility model can be automatically adjusted and controlled according to the need cold water and hot water, only through the rotation knob drive valve shaft rotation can realize the adjustment, rotates and adjusts and controls heating through the contact switch mode inside, simple and convenient operation, reduces the inside stale water and saves water resources, and the internal water pressure is stable and the delivery adjustment is stable and controllable.
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Description

Technical Field

[0001] This utility model relates to the field of faucet technology, and in particular to an electric water faucet. Background Technology

[0002] Electric water faucets, also known as instant water faucets, are water-heating devices designed specifically for kitchen use. They provide hot water instantly in 3-5 seconds without preheating, making them ideal for everyday kitchen tasks such as washing dishes, vegetables, and cleaning kitchen utensils, allowing you to say goodbye to the pain of freezing cold water in winter.

[0003] Current electric water faucets typically regulate hot and cold water flow through a valve core. This can lead to a problem where too much stagnant water needs to be drained before hot water is available. Furthermore, water buildup inside the faucet can cause excessive water pressure, affecting normal operation. Utility Model Content

[0004] This utility model provides an electric water faucet that can automatically adjust and control the output of cold and hot water as needed. The adjustment can be achieved simply by rotating a knob to drive the valve shaft. After rotation, the internal heating is adjusted and controlled by a contact switch. The operation is simple and convenient, reduces internal stagnant water and saves water resources. The internal water pressure is stable and the delivery adjustment is stable and controllable.

[0005] To solve the above-mentioned technical problems, this utility model provides an electric water faucet, comprising:

[0006] The outer casing has a knob on its surface, and a bottom shell is threadedly connected to the bottom of the outer casing. The bottom shell has water outlet holes evenly distributed through it.

[0007] The base is provided with a mounting groove, a hollow cavity and a conveying cavity, and the end of the mounting groove away from the knob is connected to the hollow cavity;

[0008] A connecting cavity is provided at the top of the hollow cavity. A diaphragm seat is movably provided inside the connecting cavity. An extension rod is provided on the top surface of the diaphragm seat. A stationary contact and a moving contact are respectively provided on the top surface of the inner wall of the connecting cavity and the top surface of the extension rod.

[0009] The valve shaft includes a rotating head and an adjusting tube. The rotating head is disposed inside the mounting groove and has a drive shaft on its surface. One end of the drive shaft is provided with a stop block and is slidably disposed inside the adjusting tube. A water inlet is provided through the surface of the adjusting tube. The stop block is shaped as a semi-cylindrical block.

[0010] An end cap is disposed inside the outer shell, and a water chamber is provided on the surface of the end cap. A heating tube is arranged around the outside of the water chamber.

[0011] As a preferred embodiment of the above technical solution, the inner side of the knob is provided with a connecting shaft that passes through the outer shell and is threadedly connected to the rotating head. The top of the outer shell is connected with a universal joint, and a display window is provided around the outside of the universal joint.

[0012] As a preferred embodiment of the above technical solution, a water pipe is connected to the top of the mounting groove, a drain outlet is provided through the bottom surface of the mounting groove, the drain outlet is located at the top of the drain cavity, and a notch is provided on the surface of the drive shaft and located at the top of the drain outlet.

[0013] As a preferred embodiment of the above technical solution, the machine base is provided with a water passage cavity, one end of which is connected to the bottom surface of the hollow cavity, and the other end of which is connected to the water passage pipe. The water passage pipe is located on one side of the drain outlet, and one side of the surface of the hollow cavity is connected to the conveying cavity. The bottom of the conveying cavity is provided with a water outlet, and a thyristor is installed on the outside of the machine base.

[0014] As a preferred embodiment of the above technical solution, the top of the base is provided with a water inlet, one bottom end of the water inlet is connected to the water pipe, one top end of the water inlet is matched with the universal joint, a circuit board is provided on the outside of the water inlet, the circuit board is located at the bottom of the display window, a display screen is provided on the surface of the circuit board, the stationary contact and the moving contact are configured as contact switches, and the output end of the stationary contact is connected to the input of the circuit board, the circuit board is used to control the heating of the heating tube.

[0015] As a preferred embodiment of the above technical solution, a mounting plate is provided on one side of the rotating head, the rotating head surface is provided with a rotating thread and is slidably connected to the inner wall of the mounting groove, the adjusting pipe surface is provided with a positioning external thread, the inner wall of the mounting groove is provided with a positioning internal thread, the water passage cavity is provided outside the water inlet, the mounting plate is provided with a positioning block at the top, the circuit board surface is provided with a slot and is engaged with one end of the top of the positioning block, and the bottom surface of the positioning block is provided with an elastic shaft and one end of the bottom is in contact with the surface of the rotating head.

[0016] As a preferred embodiment of the above technical solution, the end cap is threadedly connected to the inner wall of the bottom shell, one end of the bottom of the water chamber is located at the top of the water outlet, and a control valve is provided at the bottom of the inner wall of the water chamber.

[0017] As a preferred embodiment of the above technical solution, the heating tube is arranged around the end cap, a heating protection component is provided on the outside of the heating tube, the heating tube passes through the base and has locking plates on both sides, the locking plates are provided on the surface of the base, and a support ring is provided at the bottom of the heating tube.

[0018] This utility model provides an electric water faucet, which has a base, a connecting cavity, a valve shaft, and an end cap. After connecting the water circuit via a universal joint, pressing the knob to dispense cold water allows water to enter the water pipe inside the outer casing through the inlet. After entering the mounting plate, it flows downwards through the drain outlet in the mounting groove into the drain cavity and then out through the outlet. To dispense hot water, rotating the knob allows water to enter the water pipe inside the outer casing through the inlet. Rotating the knob drives the drive shaft to rotate within the water pipe, dislodging the notch on the drive shaft surface from the drain outlet and preventing downward flow. Simultaneously, a stop block rotates with the drive shaft within the regulating pipe. The stop block, which initially blocked the water outlet, gradually exposes the outlet during rotation. Water enters the water cavity through the outlet and then flows from the bottom of the hollow cavity into the connecting cavity and the interior of the hollow cavity. During the flow, the water gradually pushes the diaphragm seat upwards, causing the moving contact at the top of the extension rod to engage with the inside of the connecting cavity. The static contact point makes contact, and after the circuit board receives the signal, it controls the heating tube to work. The water pushes the diaphragm seat out of the hollow cavity and flows into the delivery cavity. Then, it enters the bottom of the machine base through the delivery cavity and accumulates on the outside of the heating tube. The heating tube heats the water, and the water temperature in the area at the top of the lower water cavity is the highest. After flowing into the lower water cavity, it is delivered downward through the water outlet. When there is no water flow in the hollow cavity and the delivery cavity, the water pressure in the water passage cavity, hollow cavity and delivery cavity is the same, and the diaphragm seat is in a horizontal state and will not rise. This also avoids the situation of automatically heating and producing hot water. The entire device can automatically adjust and control the output of cold water and hot water as needed. Adjustment can be achieved by simply rotating the knob to drive the valve shaft to rotate. After rotation, the internal heating is adjusted and controlled by the contact switch. The operation is simple and convenient, reduces internal stagnant water and saves water resources. The internal water pressure is stable and the delivery adjustment is stable and controllable.

[0019] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0020] Figure 1 This is an exploded view of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 3 This is an exploded view of the base, water inlet, and connecting cavity of this utility model;

[0023] Figure 4 This is a schematic diagram of the base structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the valve shaft structure of this utility model.

[0025] In the diagram: 1. Outer shell, 11. Knob, 12. Display window, 13. Universal joint, 2. Bottom shell, 21. Water outlet, 3. Base, 31. Mounting slot, 311. Water pipe, 312. Drain, 32. Hollow cavity, 33. Conveying cavity, 34. Thyristor, 4. Water inlet, 41. Circuit board, 5. Connecting cavity, 51. Diaphragm seat, 52. Extension rod, 6. Valve shaft, 61. Rotating head, 62. Mounting plate, 63. Drive shaft, 64. Adjusting pipe, 65. Stop block, 66. Water inlet, 67. Positioning block, 68. Elastic shaft, 7. End cover, 71. Drain cavity, 8. Heating tube, 81. Heating protection component, 82. Locking plate, 83. Support ring. Detailed Implementation

[0026] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] See Figure 1-5 This utility model embodiment provides an electric water faucet, including:

[0028] The outer casing 1 has a knob 11 on its surface and a bottom casing 2 threadedly connected to the bottom of the outer casing 1. The bottom casing 2 has water outlet holes 21 evenly distributed through the bottom of the bottom casing 2.

[0029] The base 3 is provided with a mounting groove 31, a hollow cavity 32 and a conveying cavity 33. The end of the mounting groove 31 away from the knob 11 is connected to the hollow cavity 32.

[0030] A connecting cavity 5 is located at the top of the hollow cavity 32. A diaphragm seat 51 is movably provided inside the connecting cavity 5. An extension rod 52 is provided on the top surface of the diaphragm seat 51. A stationary contact and a moving contact are respectively provided on the top of the inner wall of the connecting cavity 5 and the top surface of the extension rod 52.

[0031] The valve shaft 6 includes a rotating head 61 and an adjusting tube 64. The rotating head 61 is located inside the mounting groove 31 and has a drive shaft 63 on its surface. One end of the drive shaft 63 is provided with a stop block 65 and is slidably located inside the adjusting tube 64. A water inlet 66 is provided through the surface of the adjusting tube 64. The stop block 65 is semi-cylindrical in shape.

[0032] End cap 7 is located inside the outer shell 1. The surface of end cap 7 is provided with a water chamber 71, and a heating tube 8 is arranged around the outside of the water chamber 71.

[0033] This embodiment provides an electric water faucet, which has a base 3, a connecting cavity 5, a valve shaft 6, and an end cap 7. After connecting the water circuit through the universal joint 13, when cold water is needed, the knob 11 is pressed, and water enters the water pipe 311 inside the outer casing 1 through the inlet 4. After entering the mounting plate 62, it flows downward through the drain outlet 312 in the mounting groove 31 into the drain cavity 71 and then flows out through the outlet hole 21. When hot water is needed, the knob 11 is turned, and water enters the water pipe 311 inside the outer casing 1 through the inlet 4. When button 11 is turned, it drives the drive shaft 63 to rotate inside the water pipe 311, causing the notch on the surface of the drive shaft 63 to move away from the drain outlet 312, preventing downward flow. At the same time, the baffle 65 rotates with the drive shaft 63 inside the regulating pipe 64. The baffle 65, which originally blocked the permeable outlet 66, gradually exposes the permeable outlet 66 during the rotation. Water enters the water passage chamber through the permeable outlet 66 and then enters the connecting chamber 5 and the interior of the hollow cavity 32 from the bottom of the hollow cavity 32. During the flow, the water gradually pushes the diaphragm seat 51 upward, extending... The moving contact at the top of the extension rod 52 contacts the stationary contact in the connecting cavity 5. After receiving the signal, the circuit board 41 controls the heating tube 8 to work. The water pushes the diaphragm seat 51 out of the hollow cavity 32 and flows into the conveying cavity 33. Then, it enters the bottom of the machine base 3 through the conveying cavity 33 and accumulates on the outside of the heating tube 8. The heating tube 8 works to heat the water. The water temperature in the area at the top of the lower water cavity 71 will be the highest and will flow into the lower water cavity 71 and be delivered downward through the water outlet 21. When there is no water flow in the hollow cavity 32 and the conveying cavity 33, the water pressure in the water passage cavity, the hollow cavity 32 and the conveying cavity 33 is the same. The diaphragm seat 51 is in a horizontal state and will not rise. This also avoids the situation of automatically heating and producing hot water. The entire device can automatically adjust and control the output of cold water and hot water as needed. Adjustment can be achieved by rotating the knob 11 to drive the valve shaft 6 to rotate. After rotation, the internal heating is adjusted and controlled by the contact switch. The operation is simple and convenient, reduces internal stagnant water and saves water resources. The internal water pressure is stable and the conveying adjustment is stable and controllable.

[0034] In a further embodiment of this invention, the inner side of the knob 11 is provided with a connecting shaft that passes through the outer casing 1 and is threadedly connected to the rotating head 61. The top of the outer casing 1 is connected with a universal joint 13, and a display window 12 is provided around the outside of the universal joint 13.

[0035] In this embodiment, the universal joint 13 can deliver cold water into the equipment after the water circuit is connected. A cable is provided on one side surface of the outer shell 1, and a cable is provided in the cable and extends to the outside of the outer shell 1. The cable is connected to the circuit board 41.

[0036] In a further embodiment of this invention, a water pipe 311 is connected to the top of the mounting groove 31, and a drain outlet 312 is provided through the bottom surface of the mounting groove 31. The drain outlet 312 is located at the top of the drain cavity 71, and the drive shaft 63 has a notch groove on its surface and is located at the top of the drain outlet 312.

[0037] In this embodiment, when the knob 11 is pressed, water enters the water pipe 311 inside the outer casing 1 through the water inlet 4. The notch on the surface of the drive shaft 63 is located at the top of the drain outlet 312, providing space for water flow. The water is then transported downwards into the drain chamber 71 through the notch.

[0038] In a further embodiment of this invention, the base 3 is provided with a water passage cavity, one end of which is connected to the bottom surface of the hollow cavity 32, and the other end of which is connected to the water passage pipe 311. The water passage pipe 311 is located on one side of the drain outlet 312. One side of the surface of the hollow cavity 32 is connected to the conveying cavity 33. The bottom of the conveying cavity 33 is provided with a water outlet. A thyristor 34 is installed on the outside of the base 3.

[0039] In this embodiment, when there is no water flow in the hollow cavity 32 and the conveying cavity 33, the water pressure inside the water passage cavity, hollow cavity 32 and conveying cavity 33 is the same, the diaphragm seat 51 is in a horizontal state and will not rise, thus avoiding the situation of automatically heating hot water. The thyristor 34 can detect the temperature of the water that can enter the lower water cavity 71 at the top position. The installation of the thyristor 34 can be adjusted as needed. After reaching the specified temperature, the water entering the lower water cavity 71 can be discharged. A corresponding solenoid valve can also be installed on the top of the inner wall of the lower water cavity 71 to control the entry of water.

[0040] In a further embodiment of this invention, the base 3 is provided with a water inlet 4 at the top, one end of the bottom of the water inlet 4 is connected to the water pipe 311, one end of the top of the water inlet 4 is matched with the universal joint 13, a circuit board 41 is provided on the outside of the water inlet 4, the circuit board 41 is located at the bottom of the display window 12, a display screen is provided on the surface of the circuit board 41, the stationary contact and the moving contact are configured as contact switches, and the output end of the stationary contact is connected to the input of the circuit board 41. The circuit board 41 is used to control the heating of the heating tube 8.

[0041] In this embodiment, a temperature sensor is provided at the bottom of the base 3 to detect the water temperature and feed it back to the circuit board 41 for display on the screen. The water temperature can be viewed directly through the display window 12.

[0042] In a further embodiment of this invention, a mounting plate 62 is provided on one side of the rotating head 61. The surface of the rotating head 61 is provided with a rotating thread and is slidably connected to the inner wall of the mounting groove 31. The surface of the adjusting pipe 64 is provided with a positioning external thread, and one side of the inner wall of the mounting groove 31 is provided with a positioning internal thread. The water passage cavity is located outside the water inlet 66. A positioning block 67 is provided on the top of the mounting plate 62. The surface of the circuit board 41 is provided with a slot and is engaged with one end of the top of the positioning block 67. The bottom surface of the positioning block 67 is provided with an elastic shaft 68 and one end of the bottom is in contact with the surface of the rotating head 61.

[0043] In this embodiment, when the knob 11 is turned, it drives the drive shaft 63 to rotate inside the water pipe 311, causing the notch on the surface of the drive shaft 63 to move away from the drain outlet 312 and prevent downward flow. At the same time, the stop block 65 rotates with the drive shaft 63 inside the regulating pipe 64. The stop block 65, which originally blocked the water outlet 66, gradually exposes the water outlet 66 during the rotation. After the water enters the water passage chamber through the water outlet 66, it enters the connecting chamber 5 and the interior of the hollow cavity 32 from the bottom of the hollow cavity 32. The elastic shaft 68 can apply pressure to the rotating head 61 during the rotation to avoid sudden too fast rotation, which would affect the heating. Too fast adjustment would affect the life of the equipment.

[0044] In a further embodiment of this invention, the end cap 7 is threadedly connected to the inner wall of the bottom shell 2, one end of the bottom of the lower water chamber 71 is located at the top of the water outlet 21, and a control valve is provided at the bottom of the inner wall of the lower water chamber 71.

[0045] In this embodiment, the water in the lower water chamber 71 is transported downwards and discharged through the water outlet 21.

[0046] In a further embodiment of this invention, the heating tube 8 is arranged around the end cap 7, a heating protection element 81 is provided on the outside of the heating tube 8, the heating tube 8 passes through the base 3 and is provided with locking plates 82 on the outside of both ends, the locking plates 82 are provided on the surface of the base 3, and a support ring 83 is provided at the bottom of the heating tube 8.

[0047] In this embodiment, after receiving the signal, the circuit board 41 controls the heating tube 8 to work. The heating tube 8 heats the water, and the water in the top area of ​​the lower water chamber 71 will have the highest temperature and flow into the lower water chamber 71.

[0048] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An electric water faucet, characterized in that, include: The outer shell (1) has a knob (11) on its surface. The bottom of the outer shell (1) is threadedly connected to a bottom shell (2). The bottom of the bottom shell (2) has water outlet holes (21) evenly distributed through it. The base (3) is provided with a mounting groove (31), a hollow cavity (32) and a conveying cavity (33). The end of the mounting groove (31) away from the knob (11) is connected to the hollow cavity (32). A connecting cavity (5) is located at the top of the hollow cavity (32). A diaphragm seat (51) is movably provided inside the connecting cavity (5). An extension rod (52) is provided on the top surface of the diaphragm seat (51). A static contact and a moving contact are respectively provided on the top of the inner wall of the connecting cavity (5) and the top surface of the extension rod (52). The valve shaft (6) includes a rotating head (61) and an adjusting pipe (64). The rotating head (61) is disposed inside the mounting groove (31) and a drive shaft (63) is disposed on its surface. A stop block (65) is disposed at one end of the drive shaft (63) and is slidably disposed inside the adjusting pipe (64). A water inlet (66) is provided through the surface of the adjusting pipe (64). The stop block (65) is shaped as a semi-cylindrical. An end cap (7) is disposed inside the outer shell (1). A water chamber (71) is provided on the surface of the end cap (7). A heating pipe (8) is arranged around the outside of the water chamber (71).

2. An electric water faucet according to claim 1, characterized in that, The knob (11) has a connecting shaft on its inner side and is threaded through the outer shell (1) to the rotating head (61). The top of the outer shell (1) is connected to a universal joint (13) and a display window (12) is provided around the outside of the universal joint (13).

3. An electric water faucet according to claim 2, characterized in that, The top of the mounting groove (31) is connected to a water pipe (311), and the bottom surface of the mounting groove (31) is provided with a drain outlet (312). The drain outlet (312) is located at the top of the drain cavity (71), and the surface of the drive shaft (63) is provided with a notch and is located at the top of the drain outlet (312).

4. An electric water faucet according to claim 3, characterized in that, The base (3) is provided with a water passage cavity inside. One end of the water passage cavity is connected to the bottom surface of the hollow cavity (32), and the other end of the water passage cavity is connected to the water passage pipe (311). The water passage pipe (311) is located on one side of the drain outlet (312). One side of the surface of the hollow cavity (32) is connected to the conveying cavity (33). The bottom of the conveying cavity (33) is provided with a water outlet. A thyristor (34) is installed on the outside of the base (3).

5. An electric water faucet according to claim 3, characterized in that, The base (3) is provided with a water inlet (4) at the top. One end of the bottom of the water inlet (4) is connected to the water pipe (311). One end of the top of the water inlet (4) is matched with the universal joint (13). A circuit board (41) is provided on the outside of the water inlet (4). The circuit board (41) is located at the bottom of the display window (12). A display screen is provided on the surface of the circuit board (41). The stationary contact and the moving contact are set as contact switches. The output end of the stationary contact is connected to the input of the circuit board (41). The circuit board (41) is used to control the heating of the heating tube (8).

6. An electric water faucet according to claim 5, characterized in that, The rotating head (61) has a mounting plate (62) on one side. The rotating head (61) has a rotating thread around its surface and is slidably connected to the inner wall of the mounting groove (31). The adjusting pipe (64) has a positioning external thread on its surface and a positioning internal thread on one side of the inner wall of the mounting groove (31). The water passage cavity is located outside the water inlet (66). The mounting plate (62) has a positioning block (67) on its top. The circuit board (41) has a slot on its surface and is engaged with the top end of the positioning block (67). The positioning block (67) has an elastic shaft (68) on its bottom surface and its bottom end is in contact with the surface of the rotating head (61).

7. An electric water faucet according to claim 1, characterized in that, The end cap (7) is threaded to the inner wall of the bottom shell (2), and one end of the bottom of the water chamber (71) is located at the top of the water outlet (21) and a control valve is provided at the bottom of the inner wall of the water chamber (71).

8. An electric water faucet according to claim 1, characterized in that, The heating tube (8) is arranged around the end cap (7), and a heating protection component (81) is provided on the outside of the heating tube (8). The heating tube (8) passes through the base (3) and is provided with locking plates (82) on both sides. The locking plates (82) are provided on the surface of the base (3). A support ring (83) is provided at the bottom of the heating tube (8).