Backpressure water supply instant electric water heater for regulating and controlling linkage shunt valve water mixing bathroom pipe valve assembly

Abstract

A backpressure water supply instant electric water heater with a regulating and controlling linkage shunt valve water mixing bathroom pipe valve assembly comprises an electric water heater central heat preservation water tank, an electric heater, a tap water inlet pipe, a hot water outlet pipe, a central heat preservation water tank end socket end cover assembly and the regulating and controlling linkage shunt valve water mixing bathroom pipe valve assembly. A tap water inlet pipe of the shunt valve is connected with a tap water inlet pipe of the electric water heater, and a hot water outlet pipe of the electric water heater is connected with a water mixer of the water mixing bathroom pipe valve assembly for regulating and controlling the linkage shunt valve through the linkage valve. And after being mixed in the water mixer through the linkage valve, hot water in the hot water outlet pipe of the electric water heater is discharged by regulating and controlling a bathing nozzle of the water mixing bathroom pipe valve assembly of the linkage shunt valve. And the tap water inlet pipe is arranged on a pipeline between the regulation and control linkage shunt valve water mixing bathroom pipe valve assembly and the hot water outlet pipe. And the shunt valve and the linkage valve are linked to regulate and control the opening of tap water, the shunt water supply of two paths of tap water and the closing of the tap water.

Description

Technical Field

[0001] The invention relates to a bathroom equipment device, in particular to a back-pressure water supply instant electric water heater of a regulating linkage water distribution valve mixing bathroom pipe valve assembly. Background Art

[0002] With the continuous improvement of living standards, people have higher pursuits for various things. For example, bathing devices used for bathing also tend to be multifunctional. The bathing devices will include a water mixing body, a top spray shower, a hand-held shower and a water outlet faucet. The water mixing body is provided with a cold water pipeline, a hot water pipeline and a water mixing pipeline. The top spray shower, the hand-held shower and the water outlet faucet are connected to the water mixing pipeline through pipelines respectively, and the water mixing body is provided with a thermostatic valve, a flow control valve and a switch valve for controlling the temperature, size and switching of the water flow respectively. The structure of the intelligent shower system on the market is complex, especially when there are multiple water outlet devices involved in the shower system, each water outlet device is equipped with a thermostatic system and a flow regulating system, which makes the entire intelligent shower system large and complex, and it is also difficult to unify the water outlet temperature of multiple water outlet devices; and some systems have only one total flow regulating part, which can only realize the flow regulation of the total flow, and cannot separately regulate the flow of each branch, and when the flow of one branch is increased or decreased, the flow of other branches will be affected. In some systems, the cross-sectional area of ​​the hot and cold water inlets is controlled by two control devices, which can also control the system temperature. However, the system structure is very complicated and requires simultaneous control of two actuators. The system workload is large and unstable.

[0003] The current water heater bathing system has a metal liner, and the metal liner is very likely to expand and contract under the action of water pressure due to the deformation caused by the change in water pressure, resulting in metal fatigue. The stainless steel liner will produce stress corrosion at the welding part during the expansion and contraction process, and the metal enamel liner will cause the brittle enamel to crack during the expansion and contraction process. Therefore, the current method is to use the sacrificial anode method, that is, the anode magnesium rod for protection. However, during the electrochemical protection process, the anode magnesium rod corrodes to produce a lot of scale and some substances that are not conducive to health. Therefore, the service life of the electric water heater is short and not safe and hygienic. If a ceramic liner or a glass liner is used, the ceramic liner or the glass liner is a brittle material and is very easy to break when the water pressure is high. It encounters many restrictions in terms of safety and life. When using a water heater, since conventional water heaters use different tap water pipes for cold water supply and bathing water, when using water in other places, the water pressure will fluctuate due to the different lengths and installation positions of the pipes, making the water temperature fluctuate and the flow rate fluctuate during bathing, which can easily cause discomfort or even burns. Therefore, it is necessary to make the water constant and safe, which has become a requirement of people. Moreover, a large amount of cold water will be released at the beginning of bathing, and hot water will be released after a period of time, resulting in a large amount of water waste. These are difficult to solve problems that still exist in bathing system devices to this day. Summary of the invention

[0004] The purpose of the present invention is to provide a bathroom device with a simple and reasonable structure, convenient disassembly and maintenance, and low production cost. In order to overcome many problems of existing electric water heaters, a back pressure water supply instant electric water heater with a regulating linkage water diverter valve and a mixing water bathroom pipe valve assembly is invented.

[0005] In order to solve the problems existing in the background technology, the present invention adopts the following technical scheme: a back-pressure water supply instant electric water heater with a regulating and linked water diverter valve and a mixed water sanitary pipe valve assembly, including a central insulated water tank of the electric water heater, an electric heater, a tap water inlet pipe, a hot water outlet pipe, a central insulated water tank head end cover assembly, and a regulating and linked water diverter valve and a mixed water sanitary pipe valve assembly. It is characterized in that the central insulated water tank of the electric water heater is connected in series to the tap water inlet pipe of the regulating and linked water diverter valve and a mixed water sanitary pipe valve assembly, and to the pipeline between the hot water outlet pipe of the regulating and linked water diverter valve and a mixed water sanitary pipe valve assembly. The water diverter valve of the regulating and linked water diverter valve and a mixed water sanitary pipe valve assembly is linked with the linkage valve to regulate the opening of the tap water, the size of the two-way tap water diversion water supply, and the closing of the tap water. The tap water inlet pipe of the water diverter valve of the regulating linkage water diverter valve mixing water bathroom pipe valve assembly is connected to the tap water inlet pipe of the electric water heater, and the hot water outlet pipe of the electric water heater is connected to the mixer of the regulating linkage water diverter valve mixing water bathroom pipe valve assembly through the linkage valve. The other tap water of the two-way tap water diversion is regulated by the water diverter valve and is mixed with the hot water of the hot water outlet pipe of the electric water heater in the mixer through the linkage valve and then discharged through the shower nozzle of the regulating linkage water diverter valve mixing water bathroom pipe valve assembly.

[0006] The tap water inlet and outlet of the central insulated water tank end cover assembly is arranged at the lower part of the central insulated water tank. The hot water outlet of the central insulated water tank end cover assembly is arranged at the top of the central insulated water tank. An electric heater is arranged on the central insulated water tank end cover assembly.

[0007] The regulating linkage water diverter valve and water mixing sanitary pipe valve assembly includes a regulating linkage water diverter valve and water mixing sanitary pipe valve assembly base, a tap water inlet, a regulating valve, a tap water diversion outlet, a hot water inlet, and a sanitary outlet: the tap water pipe is connected to the regulating valve tap water inlet on the regulating linkage water diverter valve and water mixing sanitary pipe valve assembly base. Or the tap water pipe is connected to the main valve tap water inlet on the regulating linkage water diverter valve and water mixing sanitary pipe valve assembly base, and the main valve tap water outlet is connected to the regulating valve tap water inlet.

[0008] The regulating valve on the base of the regulating linkage water diverter valve mixing water bathroom pipe valve assembly is a three-way water diverter valve. The tap water inlet pipe is connected to the tap water inlet of the three-way water diverter valve. The tap water outlet of the three-way water diverter valve is divided into two paths, one of which is connected to the tap water branch outlet pipe, and the tap water branch outlet pipe is connected to the electric water heater. A linkage control valve that is synchronized with the opening and closing of the three-way water diverter valve is provided on the water outlet pipe of the electric water heater, so that the electric water heaters do not affect each other when supplying multiple hot water application units.

[0009] The electric water heater is installed top-mounted, bottom-mounted, or horizontally. The installation position of the electric water heater is placed above the regulating linkage water diverter valve mixing water sanitary pipe valve assembly, or the installation position of the electric water heater is placed below the regulating linkage water diverter valve mixing water sanitary pipe valve assembly.

[0010] The back pressure water supply instant electric water heater of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly includes an electric water heater shell, an electric water heater insulation layer, and an inner tank. The inner tank includes a single-layer single-pass enamel inner tank, a steel or stainless steel inner tank, a fiberglass inner tank, a plastic inner tank, a glass inner tank, and a ceramic inner tank. The outer surface of the inner tank may be provided with a reflective mirror to reduce infrared heat radiation.

[0011] The back-pressure water supply instant electric water heater of the regulated linkage water distribution valve mixing sanitary pipe valve assembly has an inner tank of a single-pass double-layer glass vacuum sandwich insulation inner tank, and the inner and outer tank surfaces in the sandwich of the single-pass double-layer glass vacuum sandwich insulation inner tank are provided with a reflective mirror to reduce infrared heat radiation.

[0012] The inner tank of the electric water heater may be a glass inner tank, and the metal outer tank is brazed with metal glass to form a single-pass double-layer vacuum sandwich thermal insulation inner tank. The glass inner tank is a single-pass glass container with a mirror on the outer surface. The glass inner tank pipe mouth is brazed with a steel or stainless steel outer tank section with a groove pipe mouth at one end and a diameter larger than the outer diameter of the glass inner tank. The steel or stainless steel outer tank section with one end closed and the tail end of the other end open is supported on the glass inner tank through a heat-insulating support gap, and is butt-welded and closed with an opening of the same size and shape at one end. At least the tail of the glass inner tank is isolated from the steel or stainless steel outer tank gap annular cavity by a heat-insulating support compounded with a degassing agent. After the annular cavity sandwich formed by the glass inner tank and the steel or stainless steel is evacuated through the exhaust pipe on the steel or stainless steel outer tank, the exhaust pipe is welded and sealed to form a high borosilicate glass inner tank with an outer wall mirror, and a vacuum thermal insulation glass inner tank is formed by metal brazing with a steel or stainless steel outer tank. The glass inner tube opening is provided with threads, corrugations or a plane, so as to realize a good metal-glass brazing connection between the glass inner tube opening and the metal outer tube opening.

[0013] The back-pressure water supply instant electric water heater of the regulating linkage water distribution valve mixing bathroom pipe valve assembly includes a pipe assembly sealed with the opening of a brittle container, including a brittle container, a brittle container opening, a circular boss end threaded pipe fitting, a sealing ring, an internal thin-walled elastic gasket, an external gasket, a nut, a circular disc flange sealing end cover, an external flange plate, and fastening bolts. When assembling the pipe fitting assembly, first insert the sealing connection pipe fitting through the opening of the brittle container and put it into the brittle container, then deform the built-in thin-walled elastic gasket and place it in the brittle container, in the brittle container, fit the sealing connection pipe fitting and the rebound built-in thin-walled elastic gasket together in the brittle container, clamp the sealing ring on the edge of the opening of the brittle container, take out the pipe head of the sealing connection pipe fitting with the positioning built-in thin-walled elastic gasket from the sealing ring, put the external gasket on the pipe mouth of the sealing connection pipe fitting, press it on the sealing ring, screw the nut on the sealing connection pipe fitting, and press it with the external gasket to realize the sealed connection assembly between the brittle container opening and the circular sealing connection pipe fitting.

[0014] Or a pipe assembly sealed and connected with the opening of a brittle container, including a brittle container, a brittle container opening, a circular boss end threaded pipe fitting, a sealing ring, an internal thin-walled elastic gasket, an external gasket, a nut, a circular disc flange sealing end cover, an external flange, and a fastening bolt. When assembling the pipe assembly, first insert the sealing connection pipe fitting through the opening of the brittle container into the brittle container, then deform the internal thin-walled elastic gasket and place it in the brittle container, in the brittle container, fit the sealing connection pipe fitting and the rebounding internal thin-walled elastic gasket in the brittle container, clamp the sealing ring on the edge of the opening of the brittle container, take out the pipe head of the sealing connection pipe fitting with the positioning internal thin-walled elastic gasket from the sealing ring, put the external gasket on the pipe mouth of the sealing connection pipe fitting, press it on the sealing ring, screw the nut on the sealing connection pipe fitting, and press it with the external gasket to achieve the sealed connection assembly of the brittle container opening and the circular sealing connection pipe fitting.

[0015] The opening of the brittle container is a circular structure. The shape of the circular boss end of the circular boss end threaded pipe fitting corresponds to the shape of the brittle container opening, and the size is slightly smaller than the size of the brittle container opening, so that the circular boss end threaded pipe fitting can pass through. A sealing ring with a side view similar to the shape of an "I" is provided on the opening of the brittle container. The inner diameter of the sealing ring corresponds to the outer diameter thread size of the circular boss end threaded pipe fitting, and the outer diameter is larger than the outer diameter size of the circular boss end. The sealing ring is clamped on the edge of the opening of the brittle container.

[0016] When assembling the sealing connection pipe fitting assembly of the brittle container opening, first insert the circular boss end threaded pipe fitting through the brittle container opening into the brittle container, then clamp the sealing ring on the edge of the brittle container opening, then take the threaded pipe head of the circular boss end threaded pipe fitting out of the sealing ring, then put the external gasket on the pipe mouth of the circular boss end threaded pipe fitting and press it on the sealing ring, then screw the nut on the pipe mouth of the circular boss end threaded pipe fitting and press it with the matching external gasket to realize the sealing connection assembly between the brittle container opening and the circular boss end threaded pipe fitting.

[0017] Or the opening of the brittle container is a circular structure, and the shape of the circular boss end of the circular boss end threaded pipe fitting corresponds to the shape of the brittle container opening, and the size is slightly smaller than the size of the brittle container opening, so that the circular boss end threaded pipe fitting can pass through. One end of the boss of the circular boss end threaded pipe fitting is blocked with a built-in thin-walled elastic gasket whose inner diameter corresponds to the outer diameter thread size of the circular boss end threaded pipe fitting. The inner diameter of the sealing ring corresponds to the outer diameter thread size of the circular boss end threaded pipe fitting, and the outer diameter corresponds to the outer diameter size of the thin-walled elastic gasket. The sealing ring is clamped on the edge of the opening of the brittle container.

[0018] When assembling the brittle container opening sealing connection pipe fitting assembly, first insert the circular boss end threaded pipe fitting through the brittle container opening and put it into the brittle container, then deform the built-in thin-walled elastic gasket and place it in the brittle container, in the brittle container, fit the circular boss end threaded pipe fitting and the rebound built-in thin-walled elastic gasket in the brittle container, then clamp the sealing ring on the edge of the brittle container opening, then take out the threaded pipe head of the circular boss end threaded pipe fitting with the positioning built-in thin-walled elastic gasket from the sealing ring, then put the external gasket on the pipe mouth of the circular boss end threaded pipe fitting and press it on the sealing ring, then screw the nut on the nozzle of the circular boss end threaded pipe fitting and press it with the matching external gasket to realize the sealed connection assembly between the brittle container opening and the circular boss end threaded pipe fitting.

[0019] When assembling the brittle container opening sealing connection pipe fitting assembly, first place the circular disc flange sealing end cover into the brittle container through the brittle container opening, then clamp the sealing ring on the edge of the brittle container opening, then take the bottom end of the head of the circular disc flange sealing end cover out of the sealing ring, then clamp the external gasket on the bolt group at the bottom end of the head of the circular disc flange sealing end cover, and press it on the sealing ring, then screw on the bolts and nuts, lock the external gasket on the circular disc flange sealing end cover, and press the matching sealing ring to realize the sealed connection assembly between the brittle container opening and the circular disc flange sealing end cover.

[0020] The opening of the brittle container is a circular structure. The shape of the disc edge of the circular disc edge flange sealing end cover corresponds to the shape of the brittle container opening, and the size is slightly smaller than the size of the brittle container opening, so that the circular disc edge flange sealing end cover can pass through. One end of the disc edge of the circular disc edge flange sealing end cover is blocked with a built-in thin-walled elastic gasket whose inner diameter corresponds to the outer diameter of the circular disc edge flange sealing end cover. The inner ring diameter of the sealing ring corresponds to the outer diameter of the circular disc edge flange sealing end cover, and the outer ring diameter corresponds to the outer diameter of the thin-walled elastic gasket. The sealing ring is clamped on the edge of the brittle container opening.

[0021] The bottom end of the circular disc flange sealing end cover is provided with a built-in thin-walled elastic gasket corresponding to the shape and size of the sealing ring and the outer diameter of the circular disc flange sealing end cover. Bolts and nuts matching the built-in thin-walled elastic gasket and the circular disc flange sealing end cover are provided on the built-in thin-walled elastic gasket.

[0022] When assembling the brittle container opening sealing connection pipe fitting assembly, first insert the circular disc flange sealing end cover through the brittle container opening into the brittle container, then deform the built-in thin-walled elastic gasket and place it in the brittle container, in the brittle container, put the circular disc flange sealing end cover and the rebounded built-in thin-walled elastic gasket in the brittle container, then, clamp the sealing ring on the edge of the brittle container opening, then, take the bottom end of the head of the circular disc flange sealing end cover with the positioning built-in thin-walled elastic gasket out of the sealing ring, then, clamp the external gasket on the bolt group at the bottom end of the head of the circular disc flange sealing end cover, and press it on the sealing ring, then, screw the bolts and nuts, lock the external gasket on the circular disc flange sealing end cover, and press the matching sealing ring to realize the brittle container opening and the sealed connection assembly with the circular disc flange sealing end cover.

[0023] The disc edge of the circular disc flange sealing end cover is flat or concave, or corresponds to the shape of the sealing ring, or the shape of the disc edge of the circular disc flange sealing end cover corresponds to the shape of the built-in thin-walled elastic gasket. The bottom of the concave disc of the circular disc flange sealing end cover is connected with bolts through the sealing ring, or the bolts are integrated with the bottom of the circular disc flange sealing end cover, pass through the bolt holes of the external flange, and are connected and locked with the external flange through nuts.

[0024] Fragile containers include glass containers, ceramic containers, and enamel containers. The opening of the brittle container is flat or curved. The sealing ring is made of plastic material. Because the brittle container is rigid and has the characteristics of being resistant to compression but not tension, it is damaged due to uneven force when using conventional connection methods such as bolt connection. In addition, since the internal pressure of the brittle container is often high and the external pressure is low when it is in use, it is extremely difficult to achieve a locking and sealing, which can easily cause water leakage. The brittle container opening sealing connection pipe assembly uses a rubber sealing ring to flexibly connect and seal from the inside of the brittle container, and the greater the internal pressure, the better the connection sealing effect, thereby preventing metal pipes from damaging the brittle container.

[0025] The back-pressure water supply instant electric water heater of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly has a central insulated water tank tap water inlet pipe on the sealing end cover of the central insulated water tank end cover assembly, and the outlet of the tap water inlet pipe is arranged at the lower part of the central insulated water tank. The tap water inlet pipe may be in the shape of an inverted "U" pipe, and the elbow is arranged at the top of the water tank. The top of the inverted "U" pipe elbow is provided with an air inlet hole to achieve the destruction of siphon when the pipeline is drained. The outlet of the hot water outlet pipe of the central insulated water tank end cover assembly is arranged at the top of the central insulated water tank. The hot water rises and the cold water falls for natural convection, and the valve of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly can be opened to achieve immediate hot water output.

[0026] A negative pressure air intake check valve may be provided on the top of the central insulated water tank. Or a negative pressure air intake check valve may be provided on the hot water outlet pipe of the central insulated water tank. When the inlet and outlet pipes of the central insulated water tank are emptied, the central insulated water tank is under negative pressure, the negative pressure air intake check valve opens, and air is replenished to the central insulated water tank. When the central insulated water tank is under positive pressure, the negative pressure air intake check valve closes.

[0027] The central insulated water tank head end cover assembly is provided with an electric heater that guides the water through a straight guide pipe. The bottom and top of the guide pipe are placed below the water surface of the central insulated water tank, so that the water in the central insulated water tank enters the water inlet at the bottom of the guide device, is heated by the electric heater, and the heat is quickly discharged.

[0028] The bottom of the central insulated water tank may be provided with a scale drain valve.

[0029] The back pressure water supply instant electric water heater of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly is an electric heater that guides the water through the guide pipe or is a double-channel cylindrical electric heater with an insulating guide sleeve and an insulating material heat exchange surface for scale prevention. The cylindrical electric heater is a composite electric heating body on the inner and outer surfaces, and the heat exchange surface of the electric heating body is an electrically insulating material surface, so as to achieve scale prevention through the electrically insulating material heat exchange surface. The cylindrical electric heater is electrically insulated and fixed on the installation and fixing base. The lower end of the outer layer of the electrically insulating tube is installed on the installation and fixing base. Three concentrically connected electrically insulating tubes form an insulating guide sleeve. Water enters from the water inlet of the outer layer of the electrically insulating tube and the water inlet of the inner core of the electrically insulating tube, passes through the throttling device formed between the bottom pipe mouth of the middle electrically insulating tube and the installation and fixing base, and enters the hot water cavity of the cylindrical electric heater with an electrically insulating layer as the heat release surface. The water heated by the cylindrical electric heater with an electrically insulating layer as the heat release surface is discharged from the upper end pipe mouth of the middle electrically insulating tube. After being heated by the water heater, the water temperature rises rapidly to meet the instant heating requirements.

[0030] Or the electric heater that conducts through the flow guide pipe is a scale-proof electric heater with an exothermic surface made of an electrically insulating material. The coating of the electric heating film is coated on the surface of the skeleton. After sintering to form the electric heating film, a conductive silver paste is coated on the surface of the appropriate position of the electric heating film, and the silver electrode is baked in an oven. Then, ceramic glass glaze is coated on the surface of the electric heating film and part of the silver electrode, or a glass sleeve is set, or Teflon material is baked in an oven. After drying or hot melting, the electric heater including the ceramic glaze surface, the glass surface, and the Teflon surface is baked in an oven to form an electric heater with at least two heat dissipation surfaces and at least one electric heating film electric heating circuit. The electric heating core is formed by connecting an electric wire to the silver electrode. The electric wire is led out of the electrode-enclosed electric wire through the provided sealing rubber sleeve, and is sealed and fixed on the mounting base provided with a connecting device. The insulating ceramic glaze makes the calcium and magnesium ions weakly bonded to it, and it is not easy to form hard scale.

[0031] The electric heater guided by the guide tube has a simple and reliable structure, convenient power regulation, high safety, low cost, easy processing and good performance.

[0032] The back pressure water supply instant electric water heater of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly includes an electric heater frame, an electric heater, and a mounting base. The heat release surface of the electric heater is an electrically insulating material surface, including an electrically insulating ceramic glaze surface, a glass lining surface, an enamel surface, and a Teflon electrically insulating film layer for scale prevention. The electric heater frame includes a strip-shaped, angular, arc-shaped, and twist-shaped electric heater frame, and the electric heater frame includes a quartz glass frame, a microcrystalline glass frame, and a ceramic frame. The surface of the frame is a smooth surface, or a frosted or halogenated surface, and a doped semiconductor nano-conductive film material is generated on the surface of the high-temperature resistant insulating frame substrate through chemical vapor deposition, spray pyrolysis, ion sputtering, evaporation and other thin film generation processes. For example, a thermal decomposition oxidizing agent is sprayed on the surface of the heating skeleton to form a tin dioxide semiconductor electric heating film coating, and a conductive silver paste is applied to the surface of the electric heating film at an appropriate position, and the silver electrode is baked in an oven, and a ceramic glass glaze is applied on the surface of the tin dioxide semiconductor electric heating film and part of the silver electrode. After drying, the ceramic glaze is baked in an oven to form an electric heater with at least two heat dissipation surfaces and at least one tin dioxide semiconductor electric heating film electric heating circuit. Alternatively, a glass enamel material, a porcelain enamel material or a Teflon material is applied on the surface of the tin dioxide semiconductor electric heating film and part of the silver electrode, and an electrical insulating surface is baked in an oven to form an electric heater with at least two heat dissipation surfaces and at least one tin dioxide semiconductor electric heating film electric heating circuit.

[0033] The electric heating core is made by connecting the electric wire to the silver electrode. The silver electrode and the electric wire are connected through the high temperature resistant and electrically insulating plug, combined with the high temperature resistant sealing rubber sleeve, and the electrode-sealed electric wire is led out. The electric wire end of the electric heater skeleton sealed by the sealing rubber sleeve is sealed and fixed on the mounting base provided with a connecting device. The mounting base is provided with a through hole for the lead-out electric wire to pass through. The through hole is filled with high temperature resistant and electrically insulating sealant to fix the lead-out wire, making it difficult to pull during use. The lead-out electric wire is welded with a terminal for convenient electrical connection.

[0034] The electric heating film at the closed end of the electric heater skeleton may be compounded with a silver electrode. An electrically insulating annular clamp is provided on the inner wall of the electric heater skeleton to connect with the silver electrode. A metal connecting piece coated with solder is provided on the opposite surface of the electrically insulating annular clamp, which is used to connect the electric wire and the electric heating film, and a metal electrode is provided between the electric heating film and the electrically insulating annular clamp. On the electric heater skeleton, at least two metal electrodes lead out at least two wires respectively, wherein the long wire is coated with conductive silver paste on the electric heater skeleton, which is electrically insulated from the electric heating film, and is formed into an electric wire after high-temperature sintering, and then a ceramic glass glaze is coated on the electric heater skeleton. After drying, the ceramic glaze is baked in an oven to form an electrical insulation layer to prevent the long wire on the electric heater skeleton from leaking electricity. The electric heating film includes at least one heating equivalent heating resistor, and the electric heating film compounded on the skeleton surface is divided and connected by removing the film and leaving blank space, and the electric heater power is adjusted by single connection, series connection, and parallel connection of the electric heating film resistance heating element.

[0035] Or it is provided with an insulating guide sleeve, an insulating material heat exchange surface, and a scale-proof double-flow channel cylindrical electric heater, including an electric heater, an electrically insulating guide tube, a positioning connection support, a water inlet, a water outlet, and a mounting and fixing base. The cylindrical electric heater is a composite electric heating body on the inner and outer surfaces of a tubular body, and the heat-releasing surface of the electric heater is an electrically insulating material surface, including an annular quartz glass tube or a high borosilicate glass tube, an electrically insulating ceramic glaze surface, an enameled glass surface, an enameled surface, and a Teflon electrically insulating film layer, so that the calcium and magnesium ions have weak binding force with it and are not easy to form hard scale. The cylindrical electric heater may be a cylindrical electric heater composed of at least three plate-shaped electric heating bodies, or at least three inverted U-shaped tubular electric heating bodies, or at least two angular plate-shaped electric heating bodies, or at least two arc-shaped electric heating bodies. The heat exchange surface of the electric heating body is an electrically insulating material surface, and scale prevention is achieved through the electrically insulating material heat exchange surface. The cylindrical electric heater is electrically insulated and fixed on the mounting and fixing base.

[0036] The insulating flow guide sleeve is composed of three electrical insulation tubes of different thicknesses and lengths, which are concentrically sleeved together, wherein the water inlet end pipe head of the inner core electrical insulation tube is an inverted L-shaped inner core electrical insulation tube, the water inlet of the inner core electrical insulation tube passes through the middle electrical insulation tube wall and is connected to the middle electrical insulation tube wall, and the other end of the inner core electrical insulation tube is a water outlet. Or the water inlet end pipe head of the inner core electrical insulation tube is a T-shaped inner core electrical insulation tube, the water inlet of the inner core electrical insulation tube passes through the middle electrical insulation tube wall and is connected to the middle electrical insulation tube wall, and the other end of the inner core electrical insulation tube is a water outlet.

[0037] The lower end of the outer layer of the electrical insulation tube is installed on the installation and fixing base, and the upper end of the outer layer of the electrical insulation tube is higher than the bottom of the electric water heater by a certain distance, and its length is shorter than the inner core electrical insulation tube and the middle electrical insulation tube. Three concentrically connected electrical insulation tubes form an insulating guide sleeve.

[0038] The inner wall of the cylindrical electric heater and the inner core electric insulation tube placed inside the cylindrical electric heater tube, which is longer than the length of the cylindrical electric heater tube, are inserted at the root of the cylindrical electric heater through positioning support, and the gap left between the inner core electric insulation tube and the installation base becomes the water outlet of the inner core electric insulation tube. The outer wall of the inner core electric insulation tube and the inner wall of the cylindrical electric heater are spaced into concentric annular cavities to form an inner layer of flow conduction and heat exchange flow channel. The outer wall of the cylindrical electric heater and the inner wall of the intermediate electric insulation tube placed outside it are spaced into concentric annular cavities through support to form an outer layer of flow conduction and heat exchange flow channel. The gap left between the root of the intermediate electric insulation tube and the installation base is the water inlet of the outer annular cavity of the cylindrical electric heater. The lower end of the outer layer electric insulation tube is fixed on the installation base, and the annular pipe mouth of the outer layer electric insulation tube is the water inlet to prevent scale at the bottom of the electric water heater from entering the heating cavity of the intermediate electric insulation tube.

[0039] Water enters from the water inlet of the outer electrically insulating tube and the water inlet of the inner electrically insulating tube, passes through the throttling device formed between the bottom pipe opening of the middle electrically insulating tube and the installation fixed base, and enters the hot water cavity of the cylindrical electric heater whose heat release surface is an electrically insulating layer including an annular quartz glass tube or a high borosilicate glass tube, an electrically insulating ceramic glaze surface, a glass-lined surface, an enameled surface, and a Teflon electrically insulating film layer. The water heated by the cylindrical electric heater whose heat release surface is an electrically insulating layer including an annular quartz glass tube or a high borosilicate glass tube, an electrically insulating ceramic glaze surface, a glass-lined surface, an enameled surface, and a Teflon electrically insulating film layer is discharged from the upper end pipe opening of the middle electrically insulating tube.

[0040] The upper water outlet of the middle electric insulating tube is placed below the water surface at the top of the electric water heater. A throttling device is formed between the middle electric insulating tube and the installation and fixing base. By adjusting the gap between the middle electric insulating tube and the installation and fixing base, the water flow entering the heating cavity can be adjusted. The bottom of the cylindrical electric heater, whose heat release surface is an electrical insulation layer including an annular quartz glass tube or a high borosilicate glass tube, an electrical insulation ceramic glaze, an enamel surface, an enamel surface, and a Teflon electrical insulation film layer, is sealed and installed on the installation and fixing base through a heat-resistant, water-resistant, and anti-aging sealing rubber sleeve. The outlet water temperature of the middle electric insulating pipe mouth meets people's requirements for water temperature, and is directly discharged through the tap water inlet pipe of the electric water heater, realizing the instant heating function of the water storage electric water heater, without the need to heat the entire tank of hot water for bathing, and avoiding the hot and cold water outlet of the electric water heater. The installation and fixing base of the electric heater is set at the bottom or side of the electric water heater.

[0041] Or it is provided with an insulating guide sleeve, an insulating material heat exchange surface, and a scale-proof double-flow channel cylindrical electric heater, including a cylindrical electric heater, an electrically insulating guide tube, a positioning connection support, a water inlet, a water outlet, and a mounting and fixing base. The cylindrical electric heater is a composite electric heating body on the inner and outer surfaces of a tubular body, and the heat-releasing surface of the electric heater is an electrically insulating material surface, including an annular quartz glass tube or a high borosilicate glass tube, an electrically insulating ceramic glaze surface, an enameled glass surface, an enameled surface, and a Teflon electrically insulating film layer, so that the calcium and magnesium ions have weak binding force with it and are not easy to form hard scale. The cylindrical electric heater may be a cylindrical electric heater composed of at least three plate-shaped electric heating bodies, or at least three inverted U-shaped tubular electric heating bodies, or at least two angular plate-shaped electric heating bodies, or at least two arc-shaped electric heating bodies. The heat exchange surface of the electric heating body is an electrically insulating material surface, and scale prevention is achieved through the electrically insulating material heat exchange surface. The cylindrical electric heater is electrically insulated and fixed on the mounting and fixing base.

[0042] The insulating flow guide sleeve is composed of three electrical insulation tubes of different thicknesses and lengths, which are concentrically sleeved together, wherein the water inlet end pipe head of the inner core electrical insulation tube is an inverted L-shaped inner core electrical insulation tube, the water inlet of the inner core electrical insulation tube passes through the middle electrical insulation tube wall and is connected to the middle electrical insulation tube wall, and the other end of the inner core electrical insulation tube is a water outlet. Or the water inlet end pipe head of the inner core electrical insulation tube is a T-shaped inner core electrical insulation tube, the water inlet of the inner core electrical insulation tube passes through the middle electrical insulation tube wall and is connected to the middle electrical insulation tube wall, and the other end of the inner core electrical insulation tube is a water outlet.

[0043] The lower end of the outer layer of the electrical insulation tube is installed on the installation and fixing base, and the upper end of the outer layer of the electrical insulation tube is higher than the bottom of the electric water heater by a certain distance, and its length is shorter than the inner core electrical insulation tube and the middle electrical insulation tube. Three concentrically connected electrical insulation tubes form an insulating guide sleeve.

[0044] The inner wall of the cylindrical electric heater and the inner core electric insulation tube placed inside the cylindrical electric heater tube, which is longer than the length of the cylindrical electric heater tube, are inserted at the root of the cylindrical electric heater through positioning support, and the gap left between the inner core electric insulation tube and the installation base becomes the water outlet of the inner core electric insulation tube. The outer wall of the inner core electric insulation tube and the inner wall of the cylindrical electric heater are spaced into concentric annular cavities to form an inner layer of flow conduction and heat exchange flow channel. The outer wall of the cylindrical electric heater and the inner wall of the intermediate electric insulation tube placed outside it are spaced into concentric annular cavities through support to form an outer layer of flow conduction and heat exchange flow channel. The gap left between the root of the intermediate electric insulation tube and the installation base is the water inlet of the outer annular cavity of the cylindrical electric heater. The lower end of the outer layer electric insulation tube is fixed on the installation base, and the annular pipe mouth of the outer layer electric insulation tube is the water inlet to prevent scale at the bottom of the electric water heater from entering the heating cavity of the intermediate electric insulation tube.

[0045] The water resistance formed by the annular flow channel formed between the inner and outer layers of the electric insulation tubes can reduce the voltage at the water inlet to below the safety voltage of 36 volts through the water resistance voltage division when the cylindrical electric heater in the middle electric insulation tube is completely leaking. The upper end of the middle electric insulation tube that has been reduced in diameter by threaded screwing or clamping or directly processed can reduce the voltage at the water inlet of the tap water at the upper end of the middle electric insulation tube to below the safety voltage of 36 volts through the water resistance voltage division when the cylindrical electric heater in the middle electric insulation tube is completely leaking.

[0046] The back pressure water supply of the instant electric water heater with the regulating linkage water diverter valve and the mixing water sanitary pipe valve assembly is controlled by a three-way water diverter valve. Or the electric water heater with the regulating linkage water diverter valve and the mixing water sanitary pipe valve assembly controls and adjusts the water inlet pipe of the three-way water diverter valve of the tap water through the main tap water supply control valve and the three-way water diverter valve, so that one tap water pipe of the three-way water diverter valve is connected to the tap water inlet pipe of the electric water heater, the outlet pipe of the electric water heater is connected to the sanitary water mixer through the linkage control valve, and the other tap water pipe of the three-way water diverter valve is connected to the sanitary water mixer. The flow rate and temperature of the back pressure water supply of the water mixer are controlled by the three-way water diverter valve.

[0047] When the three-way water distribution valve is opened, the linkage control valve on the outlet pipe of the electric water heater is opened synchronously, and the three-way water distribution valve supplies water to the electric water heater. The water from the electric water heater passes through the linkage control valve on the outlet pipe of the electric water heater, and the linkage control valve is connected to the water mixer. The cold water output by the water mixer and the three-way water distribution valve is mixed and then output.

[0048] The bathroom water outlet of the mixer is connected to the bathroom water outlet pipe. When the three-way water distributor valve is closed, the linkage control valve is closed synchronously. The three-way water distributor valve is opened, and the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously. The three-way water distributor valve is closed, and the linkage control valve provided on the water outlet pipe of the electric water heater is closed synchronously. One of the cold tap water of the three-way water distributor valve enters the electric water heater through the tap water pipe. The hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the valve assembly of the bathroom pipe of the linkage control valve. The water outlet of the linkage control valve enters the mixer, and the other cold tap water of the three-way water distributor valve enters the mixer. The bathroom output water of the mixer is regulated by the three-way water distributor valve to open and close the two cold tap water diversions, so as to realize the regulation of the water flow and temperature of the bathroom outlet pipe of the mixer. Since the three-way water diverter valve and the linkage control valve are opened and closed synchronously, the water mixer, bathroom water outlet pipe and shower head always have open water output without obstruction devices, so that the electric water heater is not pressurized. Therefore, the inner tank of the electric water heater can use low-pressure tanks including glass, ceramic, cement, enamel and stainless steel.

[0049] The bathroom water outlet of the mixer is connected to the bathroom water outlet pipe. When the three-way water distributor is closed, the linkage control valve is closed synchronously. When the three-way water distributor is opened, the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously. When the three-way water distributor is closed, the linkage control valve provided on the water outlet pipe of the electric water heater is closed synchronously. One of the cold tap water of the three-way water distributor enters the electric water heater through the tap water pipe. The hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the valve assembly of the mixing bathroom pipe of the linkage control valve. The water outlet of the linkage control valve enters the mixer, and the other cold tap water of the three-way water distributor enters the mixer. The bathroom output water of the mixer is regulated by the three-way water distributor to open and close the two cold tap water diversions, so as to realize the regulation of the water flow and temperature of the bathroom outlet pipe of the mixer. The problem that when one of the multiple hot water application units of the electric water heater supplies water, the other hot water application units of the electric water heater also produce hot water is solved, so that one electric water heater can supply water to multiple hot water application units without affecting their functions. Since the water supply and hot water outlet pipelines of each hot water application unit of the electric water heater correspond to each other, the pressure loss of water on the pipeline and valve is basically the same, so that the outlet water temperature of the hot water application unit is stable.

[0050] Or the regulating valve on the base of the regulated linkage water diverter valve mixing water bathroom pipe valve assembly is a three-way water diverter valve, and the feedback-controlled safety water shut-off valve is a valve whose opening and closing is controlled by a rear feedback pipe. The water pressure in the rear feedback pipe can control the opening and closing of the safety water shut-off valve. When the water pressure behind the feedback-controlled safety water shut-off valve is greater than the set safety water pressure, the water pressure in the rear feedback pipe can close the feedback-controlled safety water shut-off valve; when the water pressure behind the feedback-controlled safety water shut-off valve is less than the set safety water pressure, the water pressure in the rear feedback pipe can open the feedback-controlled safety water shut-off valve.

[0051] The tap water inlet pipe is connected to the water inlet of the feedback control safety water cut-off valve, and the water outlet of the feedback control safety water cut-off valve is connected to the water inlet of the three-way water diverter valve. A rear feedback pipe connection port is provided on the pipeline after the feedback control safety water cut-off valve and before the three-way water diverter valve, one end of the rear feedback pipe is connected to the rear feedback pipe connection port, and the other end of the rear feedback pipe is connected to the feedback control safety water cut-off valve.

[0052] Or the tap water inlet pipe is connected to the main valve inlet, the main valve outlet is connected to the feedback control safety water cut-off valve inlet, and the feedback control safety water cut-off valve outlet is connected to the three-way water diverter valve inlet. A rear feedback pipe connection port is provided on the pipeline after the feedback control safety water cut-off valve and before the three-way water diverter valve, one end of the rear feedback pipe is connected to the rear feedback pipe connection port, and the other end of the rear feedback pipe is connected to the feedback control safety water cut-off valve.

[0053] The water outlet of the three-way water dividing valve is divided into two routes, one of which is connected to the tap water outlet pipe, the tap water outlet pipe is connected to the electric water heater, and the electric water heater outlet pipe is provided with a linkage control valve synchronized with the opening and closing of the three-way water dividing valve, so that the electric water heaters do not affect each other when supplying multiple hot water application units.

[0054] When the three-way water distribution valve is opened, the linkage control valve on the outlet pipe of the electric water heater is opened synchronously, and the three-way water distribution valve supplies water to the electric water heater. The water from the electric water heater passes through the linkage control valve on the outlet pipe of the electric water heater, and the linkage control valve is connected to the water mixer. The cold water output by the water mixer and the three-way water distribution valve is mixed and then output.

[0055] The water flow regulating valve is installed on the water outlet pipe of the mixer. When the water flow regulating valve is opened, the feedback control safety water cut-off valve is opened, and when the water flow regulating valve is closed, the feedback control safety water cut-off valve is closed. Since the feedback control safety water cut-off valve is installed on the water outlet of the main tap water valve, although the shower head of the water outlet pipe of the mixer is equipped with a control valve, when the water flow regulating valve is opened, the feedback control safety water cut-off valve is opened, and when the water flow regulating valve is closed, the feedback control safety water cut-off valve is closed. Since the three-way water diverter valve and the linkage control valve are opened and closed synchronously, the mixer, the water outlet pipe of the bathroom and the shower head are always open water output without obstruction devices, so that the electric water heater is not blocked. Therefore, the inner tank of the electric water heater can use low-pressure tanks including glass, ceramics, cement, enamel and stainless steel.

[0056] The bathroom water outlet of the mixer is connected to the bathroom water outlet pipe. When the three-way water distributor is closed, the linkage control valve is closed synchronously. When the three-way water distributor is opened, the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously. When the three-way water distributor is closed, the linkage control valve provided on the water outlet pipe of the electric water heater is closed synchronously. One of the cold tap water of the three-way water distributor enters the electric water heater through the tap water pipe. The hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the valve assembly of the mixing bathroom pipe of the linkage control valve. The water outlet of the linkage control valve enters the mixer, and the other cold tap water of the three-way water distributor enters the mixer. The bathroom output water of the mixer is regulated by the three-way water distributor to open and close the two cold tap water diversions, so as to realize the regulation of the water flow and temperature of the bathroom outlet pipe of the mixer. The problem that when one of the multiple hot water application units of the electric water heater supplies water, the other hot water application units of the electric water heater also produce hot water is solved, so that one electric water heater can supply water to multiple hot water application units without affecting their functions. Since the water supply and hot water outlet pipelines of each hot water application unit of the electric water heater correspond to each other, the pressure loss of water on the pipeline and valve is basically the same, so that the outlet water temperature of the hot water application unit is stable.

[0057] Or the regulating valve on the base of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly is a three-way water diverter valve, the tap water inlet pipe is connected to the water inlet of the three-way water diverter valve, the water outlet of the three-way water diverter valve is divided into two ways, one of which is connected to the tap water branch outlet pipe, the tap water branch outlet pipe is connected to the electric water heater, and the electric water heater outlet pipe is provided with a linkage control valve that is synchronized with the opening and closing of the three-way water diverter valve, so that the electric water heaters do not affect each other when supplying multiple hot water application units. When the three-way water diverter valve is opened, the linkage control valve provided on the outlet pipe of the electric water heater is opened synchronously, and the three-way water diverter valve supplies water to the electric water heater, and the water outlet of the electric water heater passes through the linkage control valve provided on the outlet pipe of the electric water heater, and the linkage control valve is connected to the regulating water mixing thermostatic valve. The other water outlet of the three-way water dividing valve is connected to the regulating mixing thermostatic valve, and the bathroom water outlet of the regulating mixing thermostatic valve is connected to the bathroom outlet pipe, so that the three-way water dividing valve is opened. After the tap water enters the three-way water dividing valve, one of the cold tap water enters the electric water heater through the tap pipe, and the hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating linkage water dividing valve mixing bathroom pipe valve assembly and is input into the regulating mixing thermostatic valve. The other cold tap water of the three-way water dividing valve enters the regulating mixing thermostatic valve, and the two cold tap water diversion sizes are regulated by the three-way water dividing valve to open and close, thereby realizing coarse regulation of the water flow and temperature output from the bathroom outlet pipe of the regulating mixing thermostatic valve, and the cold water and hot water are finely regulated through the regulating mixing thermostatic valve.

[0058] The water outlet of the regulating and mixing thermostatic valve for bathroom is connected to the water outlet pipe of the bathroom. When the three-way water distributor is closed, the linkage control valve is closed synchronously. When the three-way water distributor is opened, the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously. When the three-way water distributor is closed, the linkage control valve provided on the water outlet pipe of the electric water heater is closed synchronously. One of the cold tap water of the three-way water distributor enters the electric water heater through the tap water pipe. The hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating and mixing thermostatic valve for bathroom pipe valve. The water outlet of the linkage control valve enters the regulating and mixing thermostatic valve. The other cold tap water of the three-way water distributor enters the regulating and mixing thermostatic valve for bathroom output. The two cold tap water diversions are regulated by the three-way water distributor to open and close, so as to realize the regulation of the water flow and temperature of the water outlet pipe of the regulating and mixing thermostatic valve for bathroom. The problem that when one of the multiple hot water application units of the electric water heater supplies water, the other hot water application units of the electric water heater also produce hot water is solved, so that one electric water heater can supply water to multiple hot water application units without affecting their functions. Since the water supply and hot water outlet pipelines of each hot water application unit of the electric water heater correspond to each other, the pressure loss of water on the pipeline and valve is basically the same, so that the outlet water temperature of the hot water application unit is stable.

[0059] Or the regulating valve on the base of the regulated linkage water diverter valve mixing water bathroom pipe valve assembly is a three-way water diverter valve, and the feedback-controlled safety water shut-off valve is a valve whose opening and closing is controlled by a rear feedback pipe. The water pressure in the rear feedback pipe can control the opening and closing of the safety water shut-off valve. When the water pressure behind the feedback-controlled safety water shut-off valve is greater than the set safety water pressure, the water pressure in the rear feedback pipe can close the feedback-controlled safety water shut-off valve; when the water pressure behind the feedback-controlled safety water shut-off valve is less than the set safety water pressure, the water pressure in the rear feedback pipe can open the feedback-controlled safety water shut-off valve.

[0060] The tap water inlet pipe is connected to the water inlet of the feedback control safety water cut-off valve, and the water outlet of the feedback control safety water cut-off valve is connected to the water inlet of the three-way water diverter valve. A rear feedback pipe connection nozzle is provided on the pipeline after the feedback control safety water cut-off valve and before the three-way water diverter valve, one end of the rear feedback pipe is connected to the rear feedback pipe connection nozzle, and the other end of the rear feedback pipe is connected to the feedback control safety water cut-off valve.

[0061] Or the tap water inlet pipe is connected to the main valve inlet, the main valve outlet is connected to the feedback control safety water cut-off valve inlet, and the feedback control safety water cut-off valve outlet is connected to the three-way water diverter valve inlet. A rear feedback pipe connection port is provided on the pipeline after the feedback control safety water cut-off valve and before the three-way water diverter valve, one end of the rear feedback pipe is connected to the rear feedback pipe connection port, and the other end of the rear feedback pipe is connected to the feedback control safety water cut-off valve.

[0062] One of the water outlets is connected to the tap water outlet pipe, which is connected to the electric water heater. The outlet pipe of the electric water heater is provided with a linkage control valve that is synchronized with the opening and closing of the three-way water distribution valve, so that the electric water heaters do not affect each other when supplying multiple hot water application units. When the three-way water distribution valve is opened, the linkage control valve provided on the outlet pipe of the electric water heater is opened synchronously, and the three-way water distribution valve supplies water to the electric water heater. The water from the electric water heater passes through the linkage control valve provided on the outlet pipe of the electric water heater, and the linkage control valve is connected to the regulating and mixing water thermostatic valve. The other water outlet of the three-way water dividing valve is connected to the regulating mixing thermostatic valve, and the bathroom water outlet of the regulating mixing thermostatic valve is connected to the bathroom outlet pipe, so that the three-way water dividing valve is opened. After the tap water enters the three-way water dividing valve, one of the cold tap water enters the electric water heater through the tap pipe, and the hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating linkage water dividing valve mixing bathroom pipe valve assembly and is input into the regulating mixing thermostatic valve. The other cold tap water of the three-way water dividing valve enters the regulating mixing thermostatic valve, and the two cold tap water diversion sizes are regulated by the three-way water dividing valve to open and close, thereby realizing coarse regulation of the water flow and temperature output from the bathroom outlet pipe of the regulating mixing thermostatic valve, and the cold water and hot water are finely regulated through the regulating mixing thermostatic valve.

[0063] The water outlet of the regulating and mixing thermostatic valve for bathroom is connected to the water outlet pipe of the bathroom. When the three-way water distributor is closed, the linkage control valve is closed synchronously. When the three-way water distributor is opened, the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously. When the three-way water distributor is closed, the linkage control valve provided on the water outlet pipe of the electric water heater is closed synchronously. One of the cold tap water of the three-way water distributor enters the electric water heater through the tap water pipe. The hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating and mixing thermostatic valve for bathroom pipe valve. The water outlet of the linkage control valve enters the regulating and mixing thermostatic valve. The other cold tap water of the three-way water distributor enters the regulating and mixing thermostatic valve for bathroom output. The two cold tap water diversions are regulated by the three-way water distributor to open and close, so as to realize the regulation of the water flow and temperature of the water outlet pipe of the regulating and mixing thermostatic valve for bathroom. The problem that when one of the multiple hot water application units of the electric water heater supplies water, the other hot water application units of the electric water heater also produce hot water is solved, so that one electric water heater can supply water to multiple hot water application units without affecting their functions. Since the water supply and hot water outlet pipelines of each hot water application unit of the electric water heater correspond to each other, the pressure loss of water on the pipeline and valve is basically the same, so that the outlet water temperature of the hot water application unit is stable.

[0064] The tap water entering the three-way water distributor of the regulating linkage water distributor valve and the water mixing sanitary pipe valve assembly is divided into two routes. The tap water entering the electric water heater is supplied from the bottom of the electric water heater, and the hot water on the upper part of the electric water heater is pushed out through the hot water outlet pipe located on the upper part of the electric water heater, and enters the regulating water mixing thermostatic valve through the linkage control valve. The other tap water of the three-way water distributor valve enters the regulating water mixing thermostatic valve, mixes with the hot water introduced from the electric water heater, and is discharged from the outlet of the regulating water mixing thermostatic valve. Since water is incompressible, the tap water input to the electric water heater by the three-way water distributor valve is synchronously exported with the hot water output by the electric water heater, and the flow rate in and out is equal. Since the tap water entering the three-way water distributor valve is from the same water source and is incompressible, the flow rate and temperature of the sanitary water can be synchronously regulated and changed. This allows the flow rate of the back pressure water supply of the regulating water mixing thermostatic valve to change, but the temperature of the water supply is stable. Avoid the problem that the existing electric water heater and bathroom pipe valve bathing system has different pressure losses caused by different installation positions, different pipelines and different tap water flow resistances of the tap water inlet pipe of the electric water heater and the tap water inlet pipe of the bathroom pipe valve, resulting in water discharge from pipe valves in other positions, causing the bathroom pipe valve to control the water outlet temperature and flow rate of the mixing water thermostatic valve to change.

[0065] The back pressure water supply instant electric water heater of the regulating linkage water diverter valve mixing sanitary pipe valve assembly has a linkage control valve which is a four-way valve core integrated with the valve core and has a water mixing function and is compositely arranged on the valve core of the three-way water diverter valve. The three-way water diverter valve, linkage control valve, and water mixer are arranged on the same valve body to form a combined four-way valve of the three-way water diverter valve, linkage control valve, and water mixer. Or the three-way water diverter valve and linkage control valve realize the composite linkage between the two separation valves through the connecting rod, and synchronous opening and closing. Or the three-way water diverter valve and linkage control valve realize the synchronous opening and closing between the three-way water diverter valve and the linkage control valve through the electronic control linkage device on the two valves.

[0066] The water outlet pipe of the mixer is connected to the three-way water outlet selection valve, or the water outlet pipe of the thermostatic mixer is connected to the three-way water outlet selection valve. The three-way water outlet selection valve is a three-way valve. When one side is opened, the other side is closed. When the other side is closed, this side is opened. During the opening process, both sides are connected to the water outlet, so you can choose to switch between the shower and the other water outlet pipe.

[0067] A hot water and cold air double sealer is connected between the bathroom water outlet pipe of the mixer and the nozzle, or between the bathroom water outlet pipe of the regulating water mixing thermostatic valve and the nozzle, or between the bathroom water outlet pipe of the mixer and the three-way water outlet selection valve, or between the bathroom water outlet pipe of the regulating water mixing thermostatic valve and the three-way water outlet selection valve. The bathroom water outlet pipe is connected with a hot water and cold air double sealer, and the shape of the hot water and cold air double sealer is similar to an inverted "S" structure. The hot water side connected to the hot water and cold air double sealer is bent downward, so that the hot water is on the top and the cold water is on the bottom, and no convection is generated between the hot and cold water. The hot air side of the air side connected to the hot water and cold air double sealer is bent upward, so that the hot air is on the top and the cold air is on the bottom, and no convection is generated between the hot and cold air. The regulating water mixing thermostatic valve will automatically control the amount of cold water and hot water entering, and finally realize the constant temperature bathroom water output. A control valve may be provided on the nozzle shower.

[0068] Beneficial effects of the invention: The invention solves the safety problem of the current conventional bathing sanitary ware, which is caused by the instability of the water outlet temperature and flow rate due to water used in other places. It solves the problem of the current water heaters that the inner tank is short due to stress corrosion caused by changes in pressure. The water heater can be installed with one tap water pipe, which solves the problem that the hot water system needs to be installed by connecting two tap water pipes separately and the hot water pipes are installed separately. It solves the problem that the water heater cannot use glass or ceramic inner tank water heater products that are beneficial to health and environmental protection. It realizes that hot water can be obtained in time by turning on the faucet, and the tap water discharge is small and waste is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 It is a schematic diagram of the combined assembly of the first embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Figure 2It is a schematic diagram of the combined assembly of the second embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Figure 3 It is a schematic diagram of the combined assembly of the third embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Figure 4 It is a schematic diagram of the combined assembly of the fourth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Figure 5 It is a schematic diagram of the combined assembly of the fifth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Figure 6 A schematic diagram of a combined assembly of a sixth embodiment of the instant electric water heater for regulating the back pressure water supply of a linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Figure 7 It is a schematic diagram of the combined assembly of the seventh embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Figure 8 It is a schematic diagram of the combined assembly of the eighth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig. 9 It is a schematic diagram of the combined assembly of the ninth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.10 It is a schematic diagram of the combined assembly of the tenth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.11 It is a schematic diagram of the combined assembly of the eleventh embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.12 It is a schematic diagram of the combined assembly of the twelfth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Fig.13 It is a schematic diagram of the combined assembly of the thirteenth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.14 It is a schematic diagram of the combined assembly of the fourteenth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.15 It is a schematic diagram of the combined assembly of the fifteenth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.16It is a schematic diagram of the combined assembly of the sixteenth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.17 It is a schematic diagram of the combined assembly of the seventeenth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.18 It is a schematic diagram of the combined assembly of the eighteenth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.19 It is a schematic diagram of the combined assembly of the nineteenth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig. 20 It is a schematic diagram of the combined assembly of the twentieth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.21 It is a schematic diagram of the combined assembly of the twenty-first embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig. 22 It is a schematic diagram of the combined assembly of the twenty-second embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Fig.23 It is a schematic diagram of the combined assembly of the twenty-third embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.24 It is a schematic diagram of the combined assembly of the twenty-fourth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.25 It is a schematic diagram of the combined assembly of the twenty-fifth embodiment of the back-pressure water supply instant electric water heater for regulating the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.26 It is a schematic diagram of the combined assembly of the twenty-sixth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig. 27 It is a schematic diagram of the combined assembly of the twenty-seventh embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.28 It is a schematic diagram of the combined assembly of the twenty-eighth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Fig.29 It is a schematic diagram of the combined assembly of the twenty-ninth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.30It is a schematic diagram of the combined assembly of the thirtieth embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water sanitary pipe valve assembly of the present invention; Fig.31 It is a schematic diagram of the combined assembly of the thirty-first embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.32 It is a schematic diagram of the combined assembly of the thirty-second embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Fig.33 It is a schematic diagram of the combined assembly of the thirty-second embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Fig.34 It is a schematic diagram of the combined assembly of the thirty-second embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Fig.35 It is a schematic diagram of the combined assembly of the thirty-second embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Fig.36 It is a schematic diagram of the combined assembly of the thirty-second embodiment of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention; Fig.37 It is a structural schematic diagram of a first glass-lined heat-insulated water tank for regulating the back-pressure water supply of the linkage water-dividing valve mixing sanitary pipe valve assembly of the present invention; Fig.38 It is a structural schematic diagram of a second glass-lined heat-insulated water tank for regulating the back-pressure water supply of the linkage water-dividing valve mixing sanitary pipe valve assembly of the present invention, and the instant electric water heater; Fig.39 It is a structural schematic diagram of a third glass-lined heat-insulated water tank for regulating the back-pressure water supply of the linkage water-dividing valve mixing sanitary pipe valve assembly of the present invention, and the instant electric water heater; Fig.40 It is a structural schematic diagram of a fourth glass-lined heat-insulated water tank for regulating the back-pressure water supply of the linkage water-dividing valve mixing sanitary pipe valve assembly of the present invention, an instant electric water heater; Fig.41 It is a schematic diagram of the first sealing end cover connection structure of the back pressure water supply instant electric water heater glass liner for regulating the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.42 It is a schematic diagram of the second sealing end cover connection structure of the back pressure water supply instant electric water heater glass liner for regulating the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.43 A schematic diagram of a third sealing end cover connection structure of a glass liner of a back pressure water supply instant electric water heater for regulating and controlling a linkage water diverter valve, a water mixing sanitary pipe valve assembly of the present invention; Fig.44 A schematic diagram of a fourth sealing end cover connection structure of a glass liner of a back pressure water supply instant electric water heater for regulating and controlling a linkage water diverter valve, a water mixing sanitary pipe valve assembly of the present invention; Fig.45 It is a schematic diagram of the fifth sealing end cover connection structure of the glass inner tank of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.46 A schematic diagram of a sixth sealing end cover connection structure of the glass inner tank of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.47 A schematic diagram of the seventh sealing end cover connection structure of the glass inner tank of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing water bathroom pipe valve assembly of the present invention; Fig.48 It is a schematic diagram of the eighth sealing end cover connection structure of the glass inner tank of the instant electric water heater for regulating the back pressure water supply of the linkage water diverter valve mixing sanitary pipe valve assembly of the present invention.

[0070] In the figure: 1 regulating linkage water diverter valve mixing water sanitary pipe valve assembly, 2 water heater outlet pipe, 3 three-way water diverter valve core mixer cold water outlet, 4 electric water heater shell, 5 electric water heater outlet pipe linkage shut-off valve, 6 three-way water diverter valve regulating handle, 7 three-way water diverter valve core connected to water heater cold water outlet, 8 three-way water diverter valve body, 9 three-way water diverter valve core water inlet, 10 three-way water diverter valve tap water inlet pipe, 11 three-way water diverter valve and electric water heater cold water supply pipe, 12 electric water heater liner, 13 electric heater, 14 electric heater deflector, 15 insulation material, 16 electric heater liner positioning bracket, 17 electric water heater air inlet check valve, 18 electric heater inlet pipe outlet pipe connection sealing base, 19 mixer outlet pipe insulation water seal, 20 mixer outlet pipe three-way switching valve, 21 mixer outlet pipe, 22 mixer, 23 24. Air inlet at the top of the water supply pipe, 25. Water outlet at the bottom of the mixer, 26. Main valve of the water supply pipe, 27. Handle of the switch valve for shower and bathing tray, 28. Pressure feedback shut-off valve, 29. Support frame of the inner tank of the electric water heater, 30. Insulated vacuum interlayer of the inner tank of the electric water heater, 31. Elastic support of the inner tank and the outer tank of the electric water heater, 32. Insulated outer tank of the electric water heater, 33. Constant temperature control valve, 34. Rotary handle of the constant temperature control valve, 35. Sealed tank mouth of the glass inner tank, 36. Brazing flux, 37. Support point of the metal outer tank, 38. Brazing sealing groove wall of the metal outer tank, 39. Brazing groove wall of the metal outer tank, 40. Degassing agent, 41. Exhaust pipe head, 42. Brazing head of the glass inner tank, 43. Open tank wall of the glass inner tank, 44. Sealing rubber ring, 45. Metal gasket, 46. Metal threaded pipe head, 47. Metal pressure sealing nut, 48. Metal threaded pipe head stopper, 49. 9 outer groove metal sealing gasket, 50 inner groove metal sealing gasket, 51 sealing pipe head multi-edge plate teeth, 52 metal sealing end cover, 53 sealing locking bolt, 54 metal sealing end cover stopper, 55 sealing gasket, 56 sealing locking bolt nut.

Claims

1. The back pressure water supply instant electric water heater with a regulating linkage water distribution valve and a water mixing sanitary pipe valve assembly includes a central insulated water tank of the electric water heater, an electric heater, a tap water inlet pipe, a hot water outlet pipe, a central insulated water tank head and end cover assembly, and a regulating linkage water distribution valve and a water mixing sanitary pipe valve assembly, which is characterized by: The central insulated water tank of the electric water heater is connected in series to the tap water inlet pipe of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly and the pipeline between the hot water outlet pipe of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly; the diverter valve of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly and the linkage valve are linked to regulate the opening of the tap water, the size of the two-way tap water diversion water supply, and the closing of the tap water; the tap water inlet pipe of the diverter valve of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly is connected to the tap water inlet pipe of the electric water heater, and the hot water outlet pipe of the electric water heater is connected to the mixer of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly through the linkage valve; the diverter valve regulates the other tap water of the two-way tap water diversion, and after mixing with the hot water of the hot water outlet pipe of the electric water heater through the linkage valve in the mixer, it is discharged through the shower nozzle of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly; The tap water inlet and outlet of the central insulated water tank end cover assembly is arranged at the lower part of the central insulated water tank; the hot water outlet of the central insulated water tank end cover assembly is arranged at the top of the central insulated water tank; an electric heater is arranged on the central insulated water tank end cover assembly; The regulating linkage water diverter valve mixing water sanitary pipe valve assembly comprises a regulating linkage water diverter valve mixing water sanitary pipe valve assembly base, a tap water inlet, a regulating valve, a tap water diversion outlet, a hot water inlet, and a sanitary outlet: the tap water pipe is connected to the regulating valve tap water inlet on the regulating linkage water diverter valve mixing water sanitary pipe valve assembly base; or the tap water pipe is connected to the main valve tap water inlet on the regulating linkage water diverter valve mixing water sanitary pipe valve assembly base, and the main valve tap water outlet is connected to the regulating valve tap water inlet; The regulating valve on the base of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly is a three-way water diverter valve. The tap water inlet pipe is connected to the tap water inlet of the three-way water diverter valve. The tap water outlet of the three-way water diverter valve is divided into two ways, one of which is connected to the tap water diversion outlet pipe, and the tap water diversion outlet pipe is connected to the electric water heater. The electric water heater outlet pipe is provided with a linkage control valve that is synchronized with the opening and closing of the three-way water diverter valve, so that the electric water heaters do not affect each other when supplying multiple hot water application units; The electric water heater is installed top-mounted, bottom-mounted, or horizontally. The installation position of the electric water heater is placed above the regulating linkage water diverter valve mixing water sanitary pipe valve assembly, or the installation position of the electric water heater is placed below the regulating linkage water diverter valve mixing water sanitary pipe valve assembly.

2. The back-pressure water supply instant electric water heater with a control linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: The electric water heater includes an electric water heater shell, an electric water heater insulation layer, and an inner tank; the inner tank includes a single-layer single-pass enamel inner tank, a steel or stainless steel inner tank, a fiberglass inner tank, a plastic inner tank, a glass inner tank, and a ceramic inner tank, and the outer surface of the inner tank may be provided with a reflective mirror to reduce infrared heat radiation.

3. The back-pressure water supply instant electric water heater with a regulating linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: The inner tank of the electric water heater may be a single-pass double-layer glass vacuum interlayer thermal insulation tank, and the inner and outer tank surfaces in the interlayer of the single-pass double-layer glass vacuum interlayer thermal insulation tank may be provided with a reflective mirror surface for reducing infrared heat radiation; The inner tank of the electric water heater may be a glass inner tank, and the metal outer tank is a single-pass double-layer vacuum sandwich insulation inner tank made by brazing metal glass; the glass inner tank is a single-pass glass container with a mirror on the outer surface, and the glass inner tank pipe mouth is connected to the metal inner tank mouth by brazing with a steel or stainless steel outer tank section with one end opening larger than the outer diameter of the glass inner tank and one end having a groove pipe mouth, and the other end is closed at one end, and the tail end of the steel or stainless steel outer tank section with the other end opening is supported on the glass inner tank through a heat insulation support gap, and is connected to the opening with the same size and shape as one end by butt welding. The glass liner is closed, at least the rear end is supported by a heat-insulating support compounded with a getter, so that the glass liner is isolated from the gap annular cavity of the steel or stainless steel outer liner. After the annular cavity sandwich formed by the glass liner and the steel or stainless steel is evacuated through the exhaust pipe on the steel or stainless steel outer liner, the exhaust pipe is welded and sealed to form a vacuum insulation glass liner formed by a high borosilicate glass liner with an outer wall mirror and brazing with the steel or stainless steel outer liner. The glass liner tube mouth is either provided with threads, corrugations, or a plane, so as to achieve a good metal glass brazing connection between the glass liner tube mouth and the metal outer liner tube mouth.

4. The back-pressure water supply instant electric water heater with a control linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: A pipe fitting assembly sealed and connected to the opening of a brittle container comprises a brittle container, an opening of the brittle container, a circular boss end threaded pipe fitting, a sealing ring, an internal thin-walled elastic gasket, an external gasket, a nut, a circular disc flange sealing end cover, an external flange, and a fastening bolt; when assembling the pipe fitting assembly, firstly insert the sealing connection pipe fitting into the brittle container through the opening of the brittle container, then deform the internal thin-walled elastic gasket and place it in the brittle container, in the brittle container, fit the sealing connection pipe fitting and the rebounding internal thin-walled elastic gasket in the brittle container, clamp the sealing ring on the edge of the opening of the brittle container, take out the pipe head of the sealing connection pipe fitting with the positioning internal thin-walled elastic gasket from the sealing ring, fit the external gasket on the pipe mouth of the sealing connection pipe fitting, press it on the sealing ring, screw the nut on the sealing connection pipe fitting, and press it with the external gasket to realize the sealed connection assembly between the opening of the brittle container and the circular sealing connection pipe fitting; Or a pipe fitting assembly sealed and connected to the opening of a brittle container, comprising a brittle container, a brittle container opening, a circular boss end threaded pipe fitting, a sealing ring, an internal thin-walled elastic gasket, an external gasket, a nut, a circular disc flange sealing end cover, an external flange, and a fastening bolt; when assembling the pipe fitting assembly, firstly insert the sealing connection pipe fitting into the brittle container through the opening of the brittle container, then deform the internal thin-walled elastic gasket and place it in the brittle container, in the brittle container, fit the sealing connection pipe fitting and the rebounding internal thin-walled elastic gasket in the brittle container, clamp the sealing ring on the edge of the opening of the brittle container, take out the pipe head of the sealing connection pipe fitting with the positioning internal thin-walled elastic gasket from the sealing ring, put the external gasket on the pipe mouth of the sealing connection pipe fitting, press it on the sealing ring, screw the nut on the sealing connection pipe fitting, and press it with the external gasket to realize the sealed connection assembly between the opening of the brittle container and the circular sealing connection pipe fitting; The opening of the brittle container is a circular structure. The shape of the circular boss end of the circular boss end threaded pipe fitting corresponds to the shape of the brittle container opening, and the size is slightly smaller than the size of the brittle container opening, so that the circular boss end threaded pipe fitting can pass through; a sealing ring with a side view shape similar to an "I" shape is provided on the brittle container opening, and the inner ring diameter of the sealing ring corresponds to the outer diameter thread size of the circular boss end threaded pipe fitting, and the outer ring diameter is larger than the outer diameter size of the circular boss end; the sealing ring is clamped on the edge of the brittle container opening; When assembling the sealing connection pipe fitting assembly of the brittle container opening, first insert the circular boss end threaded pipe fitting through the brittle container opening into the brittle container, then clamp the sealing ring on the edge of the brittle container opening, then take the threaded pipe head of the circular boss end threaded pipe fitting out of the sealing ring, then put the external gasket on the pipe mouth of the circular boss end threaded pipe fitting and press it on the sealing ring, then screw the nut on the pipe mouth of the circular boss end threaded pipe fitting and press it with the matching external gasket to realize the sealing connection assembly between the brittle container opening and the circular boss end threaded pipe fitting; Or the opening of the brittle container is a circular structure, the shape of the circular boss end of the circular boss end threaded pipe fitting corresponds to the shape of the brittle container opening, and the size is slightly smaller than the size of the brittle container opening, so that the circular boss end threaded pipe fitting can pass through; one end of the boss of the circular boss end threaded pipe fitting is blocked with a built-in thin-walled elastic gasket whose inner diameter corresponds to the outer diameter thread size of the circular boss end threaded pipe fitting; the inner ring diameter of the sealing ring corresponds to the outer diameter thread size of the circular boss end threaded pipe fitting, and the outer ring diameter corresponds to the outer diameter size of the thin-walled elastic gasket; the sealing ring is clamped on the edge of the opening of the brittle container; When assembling the brittle container opening sealing connection pipe fitting assembly, first insert the circular boss end threaded pipe fitting through the brittle container opening into the brittle container, then deform the built-in thin-walled elastic gasket and place it in the brittle container, in the brittle container, fit the circular boss end threaded pipe fitting and the rebound built-in thin-walled elastic gasket in the brittle container, then clamp the sealing ring on the edge of the brittle container opening, then take out the threaded pipe head of the circular boss end threaded pipe fitting with the positioning built-in thin-walled elastic gasket from the sealing ring, then put the external gasket on the pipe mouth of the circular boss end threaded pipe fitting and press it on the sealing ring, then screw the nut on the pipe mouth of the circular boss end threaded pipe fitting and press it with the matching external gasket to realize the sealing connection assembly between the brittle container opening and the circular boss end threaded pipe fitting; The shape of the circular boss end of the circular boss end threaded pipe fitting is a plane or a concave surface, or corresponds to the shape of the sealing ring, or the shape of the circular boss end of the circular boss end threaded pipe fitting corresponds to the shape of the built-in thin-walled elastic gasket; the pipe mouth of the threaded section of the circular boss end threaded pipe fitting, or on its threaded section, is provided with a tooth edge for tool locking to prevent the circular boss end threaded pipe fitting from rotating; The opening of the brittle container is a circular structure. The shape of the disc edge of the circular disc flange sealing end cover corresponds to the shape of the brittle container opening, and the size is slightly smaller than the size of the brittle container opening, so that the circular disc flange sealing end cover can pass through; the sealing ring is clamped on the edge of the brittle container opening; the outer ring diameter of the waist of the sealing ring corresponds to the diameter size of the brittle container opening, and the inner ring diameter of the waist of the sealing ring corresponds to the outer ring diameter size of the circular disc flange sealing end cover; the bottom of the concave disc of the circular disc flange sealing end cover is provided with bolts corresponding to the external flange bolt installation openings; When assembling the brittle container opening sealing connection pipe fitting assembly, first put the circular disc edge flange sealing end cover into the brittle container through the brittle container opening, then clamp the sealing ring on the edge of the brittle container opening, then take the bottom end of the head of the circular disc edge flange sealing end cover out of the sealing ring, then clamp the external gasket on the bolt group at the bottom end of the head of the circular disc edge flange sealing end cover, and press it on the sealing ring, then screw the bolts and nuts, lock the external gasket on the circular disc edge flange sealing end cover, and press the matching sealing ring to achieve the sealing connection assembly of the brittle container opening and the circular disc edge flange sealing end cover; The opening of the brittle container is a circular structure. The shape of the disc edge of the circular disc edge flange sealing end cover corresponds to the shape of the brittle container opening, and the size is slightly smaller than the size of the brittle container opening, so that the circular disc edge flange sealing end cover can pass through; one end of the disc edge of the circular disc edge flange sealing end cover is blocked with a built-in thin-walled elastic gasket with an inner diameter corresponding to the outer diameter of the circular disc edge flange sealing end cover; the inner ring diameter of the sealing ring corresponds to the outer diameter of the circular disc edge flange sealing end cover, and the outer ring diameter corresponds to the outer diameter of the thin-walled elastic gasket; the sealing ring is clamped on the edge of the brittle container opening; The bottom end of the circular disc flange sealing end cover is provided with a built-in thin-walled elastic gasket corresponding to the shape and size of the sealing ring and the outer diameter of the circular disc flange sealing end cover, and bolts and nuts matching the built-in thin-walled elastic gasket and the circular disc flange sealing end cover are provided on the built-in thin-walled elastic gasket; When assembling the brittle container opening sealing connection pipe fitting assembly, first insert the circular disc flange sealing end cover through the brittle container opening into the brittle container, then deform the built-in thin-walled elastic gasket and place it in the brittle container, in the brittle container, put the circular disc flange sealing end cover and the rebounded built-in thin-walled elastic gasket in the brittle container, then clamp the sealing ring on the edge of the brittle container opening, then take the bottom end of the head of the circular disc flange sealing end cover with the positioning built-in thin-walled elastic gasket out of the sealing ring, then clamp the external gasket on the bolt group at the bottom end of the head of the circular disc flange sealing end cover, and press it on the sealing ring, then screw the bolts and nuts, lock the external gasket on the circular disc flange sealing end cover, and press the matching sealing ring to realize the brittle container opening and the sealed connection assembly with the circular disc flange sealing end cover; The flange edge of the circular disc flange sealing end cover is a plane or a concave surface, or corresponds to the shape of the sealing ring, or the shape of the flange edge of the circular disc flange sealing end cover corresponds to the shape of the built-in thin-walled elastic washer; the bottom of the concave disc of the circular disc flange sealing end cover is connected with bolts through a sealing ring, or the bolts and the bottom of the circular disc flange sealing end cover are integrated, pass through the bolt holes of the external flange disc, and are connected and locked with the external flange disc through nuts for sealing; The shape and size of the waist of the "I"-shaped sealing ring correspond to the shape and diameter of the opening of the brittle container; the shape of the built-in upper sealing surface of the "I"-shaped sealing ring corresponds to the sealing surface of the convex end of the circular convex end threaded pipe fitting, or the shape of the built-in upper sealing surface of the "I"-shaped sealing ring corresponds to the sealing surface of the built-in thin-walled elastic washer of the circular convex end threaded pipe fitting; the shape of the external upper sealing surface of the "I"-shaped sealing ring corresponds to the shape of the opening of the brittle container; the shape of the external lower sealing surface of the "I"-shaped sealing ring corresponds to the shape of the external washer; If the opening of the brittle container is a plane, the "I"-shaped sealing ring can be directly locked. If it is an arc surface, the "I"-shaped sealing ring is adjusted to fit the arc surface of the opening of the brittle container and then locked; the shape of the built-in thin-walled elastic washer is a plane, or there is a rim around the plane edge; the built-in thin-walled elastic washer with a rim buckles the edge of the built-in sealing ring, so that during the pressing process of the built-in sealing ring, the built-in sealing ring will not deform and overflow; Brittle containers include glass containers, ceramic containers, and enamel containers; the opening of the brittle container is a plane or an arc surface; the sealing ring is made of plastic material; because brittle containers are rigid and have the characteristic of being resistant to compression but not to tension, when using conventional connection methods such as bolt connection, they are damaged due to uneven stress; in addition, since brittle containers often have a large internal pressure and a small external pressure during use, it is extremely difficult to achieve locking and sealing, and it is easy to cause water leakage; the brittle container opening sealing connection pipe fitting assembly is flexibly connected and sealed from the inside of the brittle container through a rubber sealing ring, and the greater the internal pressure, the better the connection and sealing effect, preventing damage to the brittle container by metal pipe fittings.

5. The back-pressure water supply instant electric water heater with a regulating linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: On the sealing end cover of the central heat preservation water tank head end cover assembly, there is a central heat preservation water tank tap water inlet pipe, and the outlet pipe orifice of the tap water inlet pipe is arranged at the lower part of the central heat preservation water tank. The tap water inlet pipe is in the shape of an inverted "U" pipe, and the elbow is arranged at the top of the water tank. There is an air inlet hole at the top of the inverted "U" pipe elbow to break the siphon when the pipeline is drained; the orifice of the hot water outlet pipe of the central heat preservation water tank head end cover assembly is arranged at the top of the central heat preservation water tank. Hot water rises and cold water descends for natural convection, so that by opening the valve of the regulating and linking water mixing bathroom pipe valve assembly, hot water can be obtained immediately; On the top of the central heat preservation water tank, there may be a negative pressure air inlet check valve; or there is a negative pressure air inlet check valve on the hot water outlet pipe of the central heat preservation water tank; when the inlet and outlet pipes of the central heat preservation water tank are emptied, the central heat preservation water tank is in negative pressure, and the negative pressure air inlet check valve opens to supply air to the central heat preservation water tank. When the central heat preservation water tank is in positive pressure, the negative pressure air inlet check valve closes; The end cover assembly of the central insulated water tank is provided with an electric heater for guiding the water through a straight guide pipe. The bottom and top of the guide pipe are both placed below the water surface of the central insulated water tank, so that the water in the central insulated water tank enters the water inlet at the bottom of the guide device, is heated by the electric heater, and is quickly discharged; The bottom of the central insulated water tank may be provided with a scale drain valve.

6. The back-pressure water supply instant electric water heater with a control linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: The electric heater that guides the flow through the guide tube is a double-channel cylindrical electric heater with an insulating guide sleeve and an insulating material heat exchange surface for scale prevention. The cylindrical electric heater is a composite electric heating body on the inner and outer surfaces, and the heat exchange surface of the electric heating body is an electrically insulating material surface, so that scale prevention is achieved through the electrically insulating material heat exchange surface; the cylindrical electric heater is electrically insulated and fixed on a mounting and fixing base; the lower end of the outer electrically insulating tube is mounted on the mounting and fixing base; three concentrically sleeved electrically insulating tubes are connected to form an insulating guide sleeve; water enters from the water inlet of the outer electrically insulating tube and the water inlet of the inner core electrically insulating tube, passes through the throttling device formed between the bottom pipe opening of the middle electrically insulating tube and the mounting and fixing base, and enters the hot water cavity of the cylindrical electric heater with the heat release surface being the electrically insulating layer, and the water heated by the cylindrical electric heater with the heat release surface being the electrically insulating layer is discharged from the upper pipe opening of the middle electrically insulating tube; After being heated by the water heater, the water temperature rises rapidly to meet the instant heating requirement; Or the electric heater guided by the flow guide pipe is a scale-proof electric heater with a heat release surface made of an electrically insulating material. A coating of an electric heating film is applied on the surface of the skeleton. After sintering to form the electric heating film, a conductive silver paste is applied to the surface of the appropriate position of the electric heating film, and the silver electrode is baked in an oven. Then, a ceramic glass glaze is applied on the surface of the electric heating film and part of the silver electrode, or a glass sleeve is installed, or a Teflon material is used. After drying or hot melting, the electric heater including a ceramic glaze surface, a glass surface, and a Teflon surface is baked in an oven to form an electric heater with at least two heat dissipation surfaces and at least one electric heating film electric heating circuit; an electric conductor is connected to the silver electrode to form an electric heating core; the electric conductor is led out of the electrode-enclosed electric conductor through a provided sealing rubber sleeve, and is sealed and fixed on a mounting base provided with a connecting device; the insulating ceramic glaze makes the calcium and magnesium ions weakly bonded to it, and it is not easy to form hard scale; The electric heater guided by the guide tube has a simple and reliable structure, convenient power regulation, high safety, low cost, easy processing and good performance.

7. The back-pressure water supply instant electric water heater with a control linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: The electric heater includes an electric heater skeleton, an electric heater, and a mounting base. The heat-releasing surface of the electric heater is an electrically insulating material surface, including an electrically insulating ceramic glaze surface, a glass-lined surface, an enamel surface, and a Teflon electrically insulating film layer for scale prevention; the electric heater skeleton includes a strip-shaped, angular, arc-shaped, and twist-shaped electric heater skeleton, and the electric heater skeleton includes a quartz glass skeleton, a microcrystalline glass skeleton, and a ceramic skeleton; the surface of the skeleton is a smooth surface, or a frosted or halogenated surface, and a doped semiconductor nano-conductive thin film material is generated on the surface of a high-temperature resistant insulating skeleton substrate through chemical vapor deposition, spray pyrolysis, ion sputtering, evaporation and other thin film generation processes; such as spraying on the surface of the heating skeleton Thermally decompose the oxidizing agent to form a tin dioxide semiconductor electric heating film coating, and brush the conductive silver paste on the surface of the appropriate position of the electric heating film, bake the silver electrode in an oven, apply ceramic glass glaze on the surface of the tin dioxide semiconductor electric heating film and part of the silver electrode, and after drying, bake the ceramic glaze surface in an oven to form an electric heater with at least two heat dissipation surfaces and at least one tin dioxide semiconductor electric heating film electric heating circuit; or apply glass enamel, enamel or Teflon material on the surface of the tin dioxide semiconductor electric heating film and part of the silver electrode, bake the electrical insulation surface in an oven to form an electric heater with at least two heat dissipation surfaces and at least one tin dioxide semiconductor electric heating film electric heating circuit; The electric heating core is made by connecting an electric wire to the silver electrode; the silver electrode and the electric wire are connected through a high-temperature resistant and electrically insulating plug, and the electrode-sealed electric wire is led out in combination with a high-temperature resistant sealing rubber sleeve; the electric wire end of the electric heater skeleton sealed by the sealing rubber sleeve is sealed and fixed on a mounting base provided with a connecting device, and the mounting base is provided with a through hole for the lead-out electric wire to pass through, and the through hole is filled with a high-temperature resistant and electrically insulating sealant to fix the lead-out wire, so that it is difficult to pull during use, and a terminal for convenient electrical connection is welded on the lead-out electric wire; The electric heating film at the closed end of the electric heater frame may be composited with a silver electrode; an electrically insulating annular clamp is provided on the inner wall of the electric heater frame to connect with the silver electrode; a metal connecting sheet coated with solder is provided on the opposite surface of the electrically insulating annular clamp for connecting the electric wire to the electric heating film, and a metal electrode is provided between the electric heating film and the electrically insulating annular clamp; On the electric heater skeleton, at least two metal electrodes lead out at least two wires respectively, wherein the long wire is coated with conductive silver paste on the electric heater skeleton, electrically insulated from the electric heating film, and formed into an electric wire after high-temperature sintering, and then ceramic glass glaze is coated on the electric heater skeleton, and after drying, the ceramic glaze is baked in an oven to form an electrical insulation layer to prevent the long wire on the electric heater skeleton from leaking electricity; the electric heating film includes at least one heating equivalent heating resistor, and the electric heating film is compounded on the surface of the skeleton. By removing the film and leaving blank space, the electric heating film is divided and connected, and the electric heater power is adjusted by connecting the electric heating film resistance heating element in a single connection, series connection, and parallel connection; Or a double-channel cylindrical electric heater with an insulating guide sleeve and an insulating material heat exchange surface for scale prevention, including an electric heater, an electrically insulating guide tube, a positioning connection support, a water inlet, a water outlet, and a mounting and fixing base; the cylindrical electric heater is a composite electric heating body on the inner and outer surfaces of a tubular body, and the heat release surface of the electric heater is an electrically insulating material surface, including an annular quartz glass tube or a high borosilicate glass tube, an electrically insulating ceramic glaze surface, an enameled glass surface, an enameled surface, and a Teflon electrically insulating film layer, so that calcium and magnesium ions have weak binding force with it and are not easy to form hard scale; the cylindrical electric heater may be a cylindrical electric heater composed of at least three plate-shaped electric heating bodies, or at least three inverted U-shaped tubular electric heating bodies, or at least two angular plate-shaped electric heating bodies, or at least two arc-shaped electric heating bodies, the heat exchange surface of the electric heating body is an electrically insulating material surface, and scale prevention is achieved through the electrically insulating material heat exchange surface; the cylindrical electric heater is electrically insulated and fixed on the mounting and fixing base; The insulating flow guide sleeve is three electrical insulating tubes of different thicknesses and lengths, which are concentrically sleeved together, wherein the water inlet end pipe head of the inner core electrical insulating tube is an inverted L-shaped inner core electrical insulating tube, the water inlet of the inner core electrical insulating tube passes through the middle electrical insulating tube wall and is connected to the middle electrical insulating tube wall, and the other end of the inner core electrical insulating tube is a water outlet; or the water inlet end pipe head of the inner core electrical insulating tube is a T-shaped inner core electrical insulating tube, the water inlet of the inner core electrical insulating tube passes through the middle electrical insulating tube wall and is connected to the middle electrical insulating tube wall, and the other end of the inner core electrical insulating tube is a water outlet; The lower end of the outer electrical insulation tube is installed on the installation and fixing base, the upper end of the outer electrical insulation tube is higher than the bottom of the electric water heater by a certain distance, and its length is shorter than the inner core electrical insulation tube and the middle electrical insulation tube; three concentrically sleeved connected electrical insulation tubes form an insulating flow guide sleeve; The inner wall of the cylindrical electric heater and the inner core electric insulation tube placed in the cylindrical electric heater tube and longer than the length of the cylindrical electric heater tube are inserted at the root of the cylindrical electric heater through positioning support, and the gap left between the inner core electric insulation tube and the installation base becomes the water outlet of the inner core electric insulation tube; the outer wall of the inner core electric insulation tube and the inner wall of the cylindrical electric heater are spaced into concentric annular cavities to form an inner layer of flow-guiding heat-exchanging flow channel; the outer wall of the cylindrical electric heater and the inner wall of the middle electric insulation tube placed outside it are spaced into concentric annular cavities through support to form an outer layer of flow-guiding heat-exchanging flow channel; the gap left between the root of the middle electric insulation tube and the installation base is the water inlet of the outer annular cavity of the cylindrical electric heater; the lower end of the outer layer electric insulation tube is fixed on the installation base, and the annular pipe mouth of the outer layer electric insulation tube is the water inlet to prevent scale at the bottom of the electric water heater from entering the heating cavity of the middle electric insulation tube; Water enters from the water inlet of the outer layer electric insulation tube and the water inlet of the inner core electric insulation tube, passes through the throttling device formed between the bottom pipe opening of the middle electric insulation tube and the installation fixed base, and enters the hot water cavity of the cylindrical electric heater whose heat release surface is an electric insulation layer including an annular cavity quartz glass tube or a high borosilicate glass tube, an electric insulation ceramic glaze surface, a glass lining surface, a porcelain enamel surface, and a Teflon electric insulation film layer. The water heated by the cylindrical electric heater whose heat release surface is an electric insulation layer including an annular cavity quartz glass tube or a high borosilicate glass tube, an electric insulation ceramic glaze surface, a glass lining surface, a porcelain enamel surface, and a Teflon electric insulation film layer is discharged from the upper end pipe opening of the middle electric insulation tube; The upper water outlet of the middle electric insulating tube is placed below the water surface at the top of the electric water heater; a throttling device is formed between the middle electric insulating tube and the installation and fixing base, and the water flow entering the heating cavity is regulated by adjusting the gap between the middle electric insulating tube and the installation and fixing base; the bottom end of the cylindrical electric heater, whose heat release surface is an electric insulating layer including an annular quartz glass tube or a high borosilicate glass tube, an electric insulating ceramic glaze surface, an enameled glass surface, an enamel surface, and a Teflon electric insulating film layer, is sealed and installed on the installation and fixing base through a heat-resistant, water-resistant, and anti-aging sealing rubber sleeve; the outlet water temperature of the middle electric insulating tube mouth meets people's requirements for water temperature, and is directly discharged through the tap water inlet pipe of the electric water heater, realizing the instant heating function of the water storage electric water heater, without the need to heat the whole tank of hot water for bathing, and avoiding the hot and cold water output of the electric water heater; the installation and fixing base of the electric heater is arranged at the bottom or side of the electric water heater; Or a scale-proof double-channel cylindrical electric heater with an insulating guide sleeve and an insulating material heat exchange surface, including a cylindrical electric heater, an electrically insulating guide tube, a positioning connection support, a water inlet, a water outlet, and a mounting and fixing base; the cylindrical electric heater is a composite electric heating body on the inner and outer surfaces of a tubular body, and the heat-releasing surface of the electric heater is an electrically insulating material surface, including an annular quartz glass tube or a high borosilicate glass tube, an electrically insulating ceramic glaze surface, an enameled glass surface, an enameled surface, and a Teflon electrically insulating film layer, so that calcium and magnesium ions have weak binding force with it and are not easy to form hard scale; the cylindrical electric heater may be a cylindrical electric heater composed of at least three plate-shaped electric heating bodies, or at least three inverted U-shaped tubular electric heating bodies, or at least two angular plate-shaped electric heating bodies, or at least two arc-shaped electric heating bodies, the heat exchange surface of the electric heating body is an electrically insulating material surface, and scale prevention is achieved through the electrically insulating material heat exchange surface; the cylindrical electric heater is electrically insulated and fixed on the mounting and fixing base; The insulating flow guide sleeve is three electrical insulating tubes of different thicknesses and lengths, which are concentrically sleeved together, wherein the water inlet end pipe head of the inner core electrical insulating tube is an inverted L-shaped inner core electrical insulating tube, the water inlet of the inner core electrical insulating tube passes through the middle electrical insulating tube wall and is connected to the middle electrical insulating tube wall, and the other end of the inner core electrical insulating tube is a water outlet; or the water inlet end pipe head of the inner core electrical insulating tube is a T-shaped inner core electrical insulating tube, the water inlet of the inner core electrical insulating tube passes through the middle electrical insulating tube wall and is connected to the middle electrical insulating tube wall, and the other end of the inner core electrical insulating tube is a water outlet; The lower end of the outer electrical insulation tube is installed on the installation and fixing base, the upper end of the outer electrical insulation tube is higher than the bottom of the electric water heater by a certain distance, and its length is shorter than the inner core electrical insulation tube and the middle electrical insulation tube; three concentrically sleeved connected electrical insulation tubes form an insulating flow guide sleeve; The inner wall of the cylindrical electric heater and the inner core electric insulation tube placed in the cylindrical electric heater tube and longer than the length of the cylindrical electric heater tube are inserted at the root of the cylindrical electric heater through positioning support, and the gap left between the inner core electric insulation tube and the installation base becomes the water outlet of the inner core electric insulation tube; the outer wall of the inner core electric insulation tube and the inner wall of the cylindrical electric heater are spaced into concentric annular cavities to form an inner layer of flow-guiding heat-exchanging flow channel; the outer wall of the cylindrical electric heater and the inner wall of the middle electric insulation tube placed outside it are spaced into concentric annular cavities through support to form an outer layer of flow-guiding heat-exchanging flow channel; the gap left between the root of the middle electric insulation tube and the installation base is the water inlet of the outer annular cavity of the cylindrical electric heater; the lower end of the outer layer electric insulation tube is fixed on the installation base, and the annular pipe mouth of the outer layer electric insulation tube is the water inlet to prevent scale at the bottom of the electric water heater from entering the heating cavity of the middle electric insulation tube; Water enters from the water inlet of the outer layer electric insulation tube and the water inlet of the inner core electric insulation tube, passes through the throttling device formed between the bottom pipe opening of the middle electric insulation tube and the installation fixed base, and enters the hot water cavity of the cylindrical electric heater whose heat release surface is an electrical insulation layer including an annular cavity quartz glass tube or a high borosilicate glass tube, an electrical insulation ceramic glaze surface, a glass lining surface, an enamel surface, and a Teflon electrical insulation film layer; a permanent magnet is arranged in the water inlet flow channel before the cylindrical electric heater to magnetize the inflowing water, so as to further prevent hard scale from forming on the heat release surface. , enamel surface, Teflon electrical insulation film layer cylindrical electric heater; the permanent magnet scale inhibitor is composed of a permanent magnet and a permanent magnet positioning device combined as one, at least one permanent magnet is installed on the permanent magnet positioning device, the permanent magnet of the permanent magnet scale inhibitor is made of temperature-resistant, non-demagnetic, strong magnetic, water-resistant, and corrosion-resistant materials, and the permanent magnet is wrapped with a sealed temperature-resistant and waterproof film; the water heated by the cylindrical electric heater with an exothermic surface as an electrical insulation layer including an annular cavity quartz glass tube or a high borosilicate glass tube, an electrical insulation ceramic glaze surface, an enameled glass surface, an enameled surface, and a Teflon electrical insulation film layer is discharged from the upper end of the middle electrical insulation tube; The upper water outlet of the middle electric insulating tube is placed below the water surface at the top of the electric water heater; a throttling device is formed between the middle electric insulating tube and the installation and fixing base, and the water flow entering the heating cavity is regulated by adjusting the gap between the middle electric insulating tube and the installation and fixing base; the bottom end of the cylindrical electric heater, whose heat release surface is an electric insulating layer including an annular quartz glass tube or a high borosilicate glass tube, an electric insulating ceramic glaze surface, an enameled glass surface, an enamel surface, and a Teflon electric insulating film layer, is sealed and installed on the installation and fixing base through a temperature-resistant, water-resistant, and anti-aging sealing rubber sleeve; the outlet water temperature of the middle electric insulating tube mouth meets people's requirements for water temperature, and is directly discharged through the tap water inlet pipe of the electric water heater, realizing the instant heating function of the water storage electric water heater, without the need to heat the entire tank of hot water for bathing, and avoiding the hot and cold water output of the electric water heater; the installation and fixing base of the electric heater is arranged at the bottom, top or side of the electric water heater; The water resistor formed by the annular flow channel between the inner and outer layers of the electrically insulating tubes can achieve the situation where the tubular electric heater in the middle electrically insulating tube is completely leaking electricity, so that the voltage at the water inlet can be reduced to below the safety voltage of 36 volts through the water resistor voltage division; the upper end of the middle electrically insulating tube that has been subjected to shrinkage and diameter reduction treatment by threaded screwing, clamping or direct processing can achieve the situation where the tubular electric heater in the middle electrically insulating tube is completely leaking electricity, so that the voltage at the tap water inlet pipe port at the upper end of the middle electrically insulating tube can be reduced to below the safety voltage of 36 volts through the water resistor voltage division.

8. The back-pressure water supply instant electric water heater with a control linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: The water supply control valve of the electric water heater of the regulating linkage water dividing valve mixing water bathroom pipe valve assembly is a three-way water dividing valve; or the electric water heater of the regulating linkage water dividing valve mixing water bathroom pipe valve assembly, through the main tap water supply control valve and the three-way water dividing valve, controls and adjusts the water inlet pipe of the three-way water dividing valve of the tap water, so that one tap water pipe of the three-way water dividing valve is connected to the tap water inlet pipe of the electric water heater, the water outlet pipe of the electric water heater is connected to the bathroom water mixer through the linkage control valve, and the other tap water pipe of the three-way water dividing valve is connected to the bathroom water mixer; the flow rate and temperature of the back pressure water supply of the water mixer are controlled by the three-way water dividing valve; When the three-way water distribution valve is opened, the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously, and the three-way water distribution valve supplies water to the electric water heater. The water from the electric water heater passes through the linkage control valve provided on the water outlet pipe of the electric water heater, and the linkage control valve is connected to the water mixer; the cold water output by the water mixer and the three-way water distribution valve is mixed and then output; The bathroom water outlet of the mixer is connected to the bathroom water outlet pipe. When the three-way water distribution valve is closed, the linkage control valve is closed synchronously; the three-way water distribution valve is opened, and the linkage control valve on the water outlet pipe of the electric water heater is opened synchronously; the three-way water distribution valve is closed, and the linkage control valve on the water outlet pipe of the electric water heater is closed synchronously; one of the cold tap water of the three-way water distribution valve enters the electric water heater through the tap water pipe, and the hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating linkage water distribution valve mixing water bathroom pipe valve assembly, and the linkage control The water from the valve enters the mixer, and the other cold tap water from the three-way water diverter valve enters the mixer. The mixer outputs water to the bathroom. The three-way water diverter valve is used to adjust the size of the two cold tap water diversions, so as to adjust the flow rate and temperature of the water output from the mixer's bathroom outlet pipe. Since the three-way water diverter valve and the linkage control valve are opened and closed synchronously, the mixer, bathroom outlet pipe and nozzle are always open water output without obstruction devices, so that the electric water heater is not blocked. Therefore, the inner tank of the electric water heater can use low-pressure tanks including glass, ceramic, cement, enamel and stainless steel. The bathroom water outlet of the mixer is connected to the bathroom water outlet pipe. When the three-way water distributing valve is closed, the linkage control valve is closed synchronously; when the three-way water distributing valve is opened, the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously; when the three-way water distributing valve is closed, the linkage control valve provided on the water outlet pipe of the electric water heater is closed synchronously; one of the cold tap water of the three-way water distributing valve enters the electric water heater through the tap water pipe, and the hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the mixing water bathroom pipe valve assembly of the regulating linkage water distributing valve, and the water outlet of the linkage control valve enters the mixer, and the other cold tap water of the three-way water distributing valve enters the mixer , the output water of the mixer for bathroom, the opening and closing of the two-way cold tap water diversion is regulated by the three-way water diversion valve, so as to realize the regulation of the output water flow and temperature of the mixer bathroom outlet pipe; it solves the problem that one of the multiple hot water application units of the electric water heater supplies water and the other hot water application units of the electric water heater also output hot water, so that one electric water heater can supply water to multiple hot water application units without affecting their functions; because the water supply and hot water outlet pipelines of each hot water application unit of the electric water heater correspond to each other, the pressure loss of water on the pipeline and valve is basically the same, so that the outlet water temperature of the hot water application unit is stable; Or the regulating valve on the base of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly is a three-way water diverter valve, and the feedback-controlled safety water shut-off valve is a valve controlled to open and close by a rear feedback pipe. The water pressure in the rear feedback pipe can control the opening and closing of the safety water shut-off valve. When the water pressure behind the feedback-controlled safety water shut-off valve is greater than the set safety water pressure, the water pressure in the rear feedback pipe can close the feedback-controlled safety water shut-off valve. When the water pressure behind the feedback-controlled safety water shut-off valve is less than the set safety water pressure, the water pressure in the rear feedback pipe can open the feedback-controlled safety water shut-off valve. The tap water inlet pipe is connected to the water inlet of the feedback-controlled safety water cut-off valve, and the water outlet of the feedback-controlled safety water cut-off valve is connected to the water inlet of the three-way water diverter valve; a rear feedback pipe connection nozzle is provided on the pipeline after the feedback-controlled safety water cut-off valve and before the three-way water diverter valve, one end of the rear feedback pipe is connected to the rear feedback pipe connection nozzle, and the other end of the rear feedback pipe is connected to the feedback-controlled safety water cut-off valve; Or the tap water inlet pipe is connected to the main valve inlet, the main valve outlet is connected to the feedback control safety water cut-off valve inlet, and the feedback control safety water cut-off valve outlet is connected to the three-way water diverter valve inlet; a rear feedback pipe connection pipe port is provided on the pipeline after the feedback control safety water cut-off valve and before the three-way water diverter valve, one end of the rear feedback pipe is connected to the rear feedback pipe connection pipe port, and the other end of the rear feedback pipe is connected to the feedback control safety water cut-off valve; The water outlet of the three-way water diverter valve is divided into two routes, one of which is connected to the tap water outlet pipe, and the tap water outlet pipe is connected to the electric water heater. The outlet pipe of the electric water heater is provided with a linkage control valve that is synchronized with the opening and closing of the three-way water diverter valve, so that the electric water heaters do not affect each other when supplying multiple hot water application units; When the three-way water distribution valve is opened, the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously, and the three-way water distribution valve supplies water to the electric water heater. The water from the electric water heater passes through the linkage control valve provided on the water outlet pipe of the electric water heater, and the linkage control valve is connected to the water mixer; the cold water output by the water mixer and the three-way water distribution valve is mixed and then output; A water flow regulating valve is provided on the water outlet pipe of the mixer. When the water flow regulating valve is opened, the feedback control safety water cut-off valve is opened, and when the water flow regulating valve is closed, the feedback control safety water cut-off valve is closed. Since a feedback control safety water cut-off valve is provided on the water outlet of the main tap water valve, although a control valve is provided on the shower head of the water outlet pipe of the mixer, when the water flow regulating valve is opened, the feedback control safety water cut-off valve is opened, and when the water flow regulating valve is closed, the feedback control safety water cut-off valve is closed. Since the three-way water diversion valve and the linkage control valve are opened and closed synchronously, the mixer, the water outlet pipe of the bathroom and the shower head are always open water output without obstruction devices, so that the electric water heater is not blocked. Therefore, the inner tank of the electric water heater can use low-pressure tanks including glass, ceramics, cement, enamel and stainless steel. The bathroom water outlet of the mixer is connected to the bathroom water outlet pipe. When the three-way water distributing valve is closed, the linkage control valve is closed synchronously; when the three-way water distributing valve is opened, the linkage control valve provided on the water outlet pipe of the electric water heater is opened synchronously; when the three-way water distributing valve is closed, the linkage control valve provided on the water outlet pipe of the electric water heater is closed synchronously; one of the cold tap water of the three-way water distributing valve enters the electric water heater through the tap water pipe, and the hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the mixing water bathroom pipe valve assembly of the regulating linkage water distributing valve, and the water outlet of the linkage control valve enters the mixer, and the other cold tap water of the three-way water distributing valve enters the mixer , the output water of the mixer for bathroom, the opening and closing of the two-way cold tap water diversion is regulated by the three-way water diversion valve, so as to realize the regulation of the output water flow and temperature of the mixer bathroom outlet pipe; it solves the problem that one of the multiple hot water application units of the electric water heater supplies water and the other hot water application units of the electric water heater also output hot water, so that one electric water heater can supply water to multiple hot water application units without affecting their functions; because the water supply and hot water outlet pipelines of each hot water application unit of the electric water heater correspond to each other, the pressure loss of water on the pipeline and valve is basically the same, so that the outlet water temperature of the hot water application unit is stable; Or the regulating and controlling linkage water diverter valve mixing water sanitary pipe valve assembly base is a three-way water diverter valve, the tap water inlet pipe is connected to the water inlet of the three-way water diverter valve, the water outlet of the three-way water diverter valve is divided into two ways, one of which is connected to the tap water branch outlet pipe, the tap water branch outlet pipe is connected to the electric water heater, and the electric water heater outlet pipe is provided with a linkage control valve synchronized with the opening and closing of the three-way water diverter valve, so that the electric water heaters do not affect each other when supplying multiple hot water application units; when the three-way water diverter valve is opened, the linkage control valve provided on the outlet pipe of the electric water heater is opened synchronously, and the three-way water diverter valve supplies water to the electric water heater, and the water outlet of the electric water heater passes through the linkage control valve provided on the outlet pipe of the electric water heater, and the linkage control valve is connected to the regulating and controlling water mixing thermostatic valve; three-way water diverter valve Another water outlet of the valve is connected with the regulating and mixing thermostatic valve, and the bathroom outlet of the regulating and mixing thermostatic valve is connected with the bathroom outlet pipe, so as to realize the opening of the three-way water diverter valve. After the tap water enters the three-way water diverter valve, one of the cold tap water enters the electric water heater through the tap water pipe, and the hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating and mixing thermostatic valve of the mixing bathroom pipe valve assembly, and is input into the regulating and mixing thermostatic valve. Another cold tap water of the three-way water diverter valve enters the regulating and mixing thermostatic valve, and the two cold tap water diversion sizes are regulated by the three-way water diverter valve to open and close, so as to realize the rough regulation of the water flow and temperature of the bathroom outlet pipe of the regulating and mixing thermostatic valve, and the cold water and hot water realize the fine regulation of the flow and temperature through the regulating and mixing thermostatic valve; The bathroom water outlet of the regulating mixing thermostatic valve is connected to the bathroom water outlet pipe. When the three-way water distributing valve is closed, the linkage control valve is closed synchronously; when the three-way water distributing valve is opened, the linkage control valve on the water outlet pipe of the electric water heater is opened synchronously; when the three-way water distributing valve is closed, the linkage control valve on the water outlet pipe of the electric water heater is closed synchronously; one of the cold tap water of the three-way water distributing valve enters the electric water heater through the tap water pipe, and the hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating linkage water distributing valve mixing water bathroom pipe valve assembly, and the water outlet of the linkage control valve enters the regulating mixing thermostatic valve, and the other cold tap water of the three-way water distributing valve enters the regulating mixing thermostatic valve. The temperature valve regulates the water output of the mixing thermostatic valve for bathrooms. The opening and closing of the two-way cold tap water diversion is regulated by the three-way water diverter valve to realize the regulation of the water flow and temperature of the water output pipe of the mixing thermostatic valve for bathrooms. It solves the problem that when one of the multiple hot water application units of the electric water heater supplies water, the other hot water application units of the electric water heater also output hot water, so that one electric water heater can supply water to multiple hot water application units without affecting their functions. Since the water supply and hot water outlet pipelines of each hot water application unit of the electric water heater correspond to each other, the pressure loss of water on the pipeline and valve is basically the same, so that the outlet water temperature of the hot water application unit is stable. Or the regulating valve on the base of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly is a three-way water diverter valve, and the feedback-controlled safety water shut-off valve is a valve controlled to open and close by a rear feedback pipe. The water pressure in the rear feedback pipe can control the opening and closing of the safety water shut-off valve. When the water pressure behind the feedback-controlled safety water shut-off valve is greater than the set safety water pressure, the water pressure in the rear feedback pipe can close the feedback-controlled safety water shut-off valve. When the water pressure behind the feedback-controlled safety water shut-off valve is less than the set safety water pressure, the water pressure in the rear feedback pipe can open the feedback-controlled safety water shut-off valve. The tap water inlet pipe is connected to the water inlet of the feedback-controlled safety water cut-off valve, and the water outlet of the feedback-controlled safety water cut-off valve is connected to the water inlet of the three-way water diverter valve; a rear feedback pipe connecting pipe port is provided on the pipeline after the feedback-controlled safety water cut-off valve and before the three-way water diverter valve, one end of the rear feedback pipe is connected to the rear feedback pipe connecting pipe port, and the other end of the rear feedback pipe is connected to the feedback-controlled safety water cut-off valve; Or the tap water inlet pipe is connected to the main valve inlet, the main valve outlet is connected to the feedback control safety water cut-off valve inlet, and the feedback control safety water cut-off valve outlet is connected to the three-way water diverter valve inlet; a rear feedback pipe connection nozzle is provided on the pipeline after the feedback control safety water cut-off valve and before the three-way water diverter valve, one end of the rear feedback pipe is connected to the rear feedback pipe connection nozzle, and the other end of the rear feedback pipe is connected to the feedback control safety water cut-off valve; One of the water outlets is connected to the tap water outlet pipe, the tap water outlet pipe is connected to the electric water heater, and the outlet pipe of the electric water heater is provided with a linkage control valve that is synchronized with the opening and closing of the three-way water distribution valve, so that the electric water heaters do not affect each other when supplying multiple hot water application units; when the three-way water distribution valve is opened, the linkage control valve provided on the outlet pipe of the electric water heater is opened synchronously, the three-way water distribution valve supplies water to the electric water heater, and the water from the electric water heater passes through the linkage control valve provided on the outlet pipe of the electric water heater, and the linkage control valve is connected to the regulating mixing water thermostatic valve; the other water outlet of the three-way water distribution valve is connected to the regulating mixing water thermostatic valve, and the regulating mixing water thermostatic valve is connected to the bathroom outlet It is connected to the bathroom water outlet pipe, so as to realize the opening of the three-way water distribution valve. After the tap water enters the three-way water distribution valve, one of the cold tap water enters the electric water heater through the tap water pipe. The hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating linkage water distribution valve mixing water bathroom pipe valve assembly and input into the regulating mixing water thermostatic valve. The other cold tap water of the three-way water distribution valve enters the regulating mixing water thermostatic valve. The two cold tap water diversion sizes are regulated by the three-way water distribution valve to open and close, so as to realize the rough regulation of the water flow and temperature of the bathroom outlet pipe of the regulating mixing water thermostatic valve. The cold water and hot water are finely regulated by the regulating mixing water thermostatic valve. The bathroom water outlet of the regulating mixing thermostatic valve is connected to the bathroom water outlet pipe. When the three-way water distributing valve is closed, the linkage control valve is closed synchronously; when the three-way water distributing valve is opened, the linkage control valve on the water outlet pipe of the electric water heater is opened synchronously; when the three-way water distributing valve is closed, the linkage control valve on the water outlet pipe of the electric water heater is closed synchronously; one of the cold tap water of the three-way water distributing valve enters the electric water heater through the tap water pipe, and the hot water of the electric water heater is pushed out by the supplied cold tap water and enters the linkage control valve on the base of the regulating linkage water distributing valve mixing water bathroom pipe valve assembly, and the water outlet of the linkage control valve enters the regulating mixing thermostatic valve, and the other cold tap water of the three-way water distributing valve enters the regulating mixing thermostatic valve. The temperature valve regulates the water output of the mixing thermostatic valve for bathrooms. The opening and closing of the two-way cold tap water diversion is regulated by the three-way water diverter valve to realize the regulation of the water flow and temperature of the water output pipe of the mixing thermostatic valve for bathrooms. It solves the problem that when one of the multiple hot water application units of the electric water heater supplies water, the other hot water application units of the electric water heater also output hot water, so that one electric water heater can supply water to multiple hot water application units without affecting their functions. Since the water supply and hot water outlet pipelines of each hot water application unit of the electric water heater correspond to each other, the pressure loss of water on the pipeline and valve is basically the same, so that the outlet water temperature of the hot water application unit is stable. The tap water entering the three-way water diverter valve of the regulating linkage water diverter valve mixing water sanitary pipe valve assembly is divided into two paths. The tap water entering the electric water heater is supplied from the bottom of the electric water heater, and the hot water on the upper part of the electric water heater is pushed out through the hot water outlet pipe located on the upper part of the electric water heater, and enters the regulating water mixing thermostatic valve through the linkage control valve. The other tap water from the three-way water diverter valve enters the regulating water mixing thermostatic valve, and after mixing with the hot water introduced from the electric water heater, it is discharged from the outlet of the regulating water mixing thermostatic valve. Since water is incompressible, that is, the tap water input into the electric water heater by the three-way water diverter valve and the hot water output by the electric water heater are simultaneously discharged, and the size The inflow and outflow are equal; since the tap water entering the three-way water distribution valve is from the same water source and is incompressible, the flow rate and temperature of the bathroom water can be synchronously regulated and changed; this allows the flow rate of the back pressure water supply of the mixing water thermostatic valve to be changed, but the temperature of the water supply is stable; this avoids the problem that the existing electric water heater and bathroom pipe valve bathing system has different pressure losses caused by the different installation positions, pipelines and tap water flow resistances of the tap water inlet pipe of the electric water heater and the bathroom pipe valve, resulting in water discharge from pipe valves in other positions, causing the bathroom pipe valve to regulate the water outlet temperature and flow of the mixing water thermostatic valve to change.

9. The back-pressure water supply instant electric water heater with a control linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: The linkage control valve is a four-way valve core integrated with the valve core and having a water mixing function, which is compositely arranged on the valve core of the three-way water diverter valve. The three-way water diverter valve, the linkage control valve and the water mixer are arranged on the same valve body to form a combined four-way valve of the three-way water diverter valve, the linkage control valve and the water mixer; or the three-way water diverter valve and the linkage control valve realize composite linkage between the two separation valves through a connecting rod, and synchronous opening and closing; or the three-way water diverter valve and the linkage control valve realize synchronous opening and closing between the three-way water diverter valve and the linkage control valve through the electronic control linkage device on the two valves; The water outlet pipe of the mixer is connected to the three-way water outlet selection valve, or the water outlet pipe of the thermostatic mixer is connected to the three-way water outlet selection valve; the three-way water outlet selection valve is a three-way valve, when one side is opened, the other side is closed; when the other side is closed, this side is opened; during the opening process, both sides are connected to the water outlet, so that the switch between the shower head and the other water outlet pipe can be selected; A hot water and cold air double sealer is connected between the bathroom water outlet pipe of the mixer and the nozzle, or between the bathroom water outlet pipe of the regulating water mixing thermostatic valve and the nozzle, or between the bathroom water outlet pipe of the mixer and the three-way water outlet selection valve, or between the bathroom water outlet pipe of the regulating water mixing thermostatic valve and the three-way water outlet selection valve; the bathroom water outlet pipe is connected to the hot water and cold air double sealer, the shape of the hot water and cold air double sealer is similar to an inverted "S" structure, the hot water side connected to the hot water and cold air double sealer is bent downward, so that the hot water is on the top and the cold water is on the bottom, and no convection is generated between the hot and cold water; the hot air side of the air side connected to the hot water and cold air double sealer is bent upward, so that the hot air is on the top and the cold air is on the bottom, and no convection is generated between the hot and cold air; The regulating mixing thermostatic valve will automatically control the amount of cold and hot water entering, ultimately achieving constant temperature bathroom water output; a control valve may be provided on the shower head.

10. The back-pressure water supply instant electric water heater with a control linkage water diverter valve and a water mixing sanitary pipe valve assembly according to claim 1 is characterized by: The regulating and mixing water thermostatic valve may be arranged on the base of the regulating and linked water diverter valve mixing water bathroom pipe valve assembly, including a valve body, a temperature sensing core, a valve core, a spring, an adjusting screw and a temperature regulating knob, wherein the valve body is provided with a hot water inlet, a cold water inlet and a mixing water outlet; the temperature regulating knob is assembled and connected with the regulating screw, a valve core is arranged in the valve body, the middle part of the valve core is movably matched with the inner wall of the valve body, the upper part of the valve core is located at the inner end of the cold water inlet, the lower part of the valve core is located at the inner end of the hot water inlet, an axial through hole is provided on the valve core, and the opening and closing degree of the cold and hot water inlets of the valve core are inversely proportional to the temperature; the temperature sensing core is fixedly connected to the outlet of the mixing water cavity of the valve core, the upper part of the temperature sensing core is located in the cavity of the valve core, the lower part of the temperature sensing core is covered with a mixing water cavity and a spring, the lower end of the spring is in contact with the inner wall of the valve body The push rod of the adjusting screw can conflict with the upper end of the temperature-sensing core; a female end cover is threadedly connected to the valve body, the adjusting screw is threadedly connected to the female end cover, the sub-end cover is threadedly connected to the female end cover, and an adjusting spring is arranged in the blind hole of the adjusting screw; a temperature-sensing medium is arranged in the temperature-sensing core, and the temperature-sensing core is placed in the mixed water outlet. The volume expands when heated and contracts when cooled, so that the length of the temperature-sensing core changes, forming a dynamic balance with the spring, and driving the valve core to move; or the temperature-sensing core is a bimetallic strip, and the temperature-sensing core is placed in the mixed water outlet. The bending degree changes when heated and cooled, so that the length of the temperature-sensing core changes, forming a dynamic balance with the spring, and driving the valve core to move; the size of the opening and closing between the axial through hole on the valve core and the valve body is realized, and the mixing ratio of hot and cold water in the mixing water thermostatic valve is adjusted.

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