Three-in-one faucet with hot water purification function

Abstract

The utility model provides a three-in-one faucet with hot water purification, which relates to the technical field of sanitary products and comprises a shell, a valve seat, a water outlet pipe, a control valve and a shunt valve, the water outlet pipe, the control valve and the shunt valve are adaptively connected with the valve seat, the shell is formed by casting or welding pipe fittings, and the valve seat is an integrally formed water passing piece and is in limit connection with the shell. The valve seat is provided with a cold tap water channel, a hot tap water channel, a water mixing channel, a cold purified water inlet channel, a cold purified water outlet channel and a hot purified water outlet channel, the water outlet pipe is arranged at the water outlet end of the valve seat, the control valve is used for controlling connection and disconnection of the cold tap water channel, the hot tap water channel and the water mixing channel, and the cold purified water inlet channel is divided into a first branch and a second branch. The first branch is controlled by a control valve to be connected and disconnected with the cold purified water outlet channel; the second branch is controlled by a shunt valve to be connected and disconnected with the heater, and the water outlet end of the heater is communicated with the hot purified water outlet channel. Therefore, the problems that an existing water purification faucet can only discharge cold purified water, is inconvenient for users to use, and is complex in structure and high in processing cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary products, and particularly relates to a three-in-one faucet with hot purified water. Background Art

[0002] The common three-in-one purified water faucets on the market refer to faucets that can discharge three different water qualities: "direct drinking water", cold and hot tap water. For example, the three-in-one purified water faucet disclosed in Chinese Patent CN205908807U includes a faucet main body, a water outlet pipe connected to the faucet main body, and a water outlet head connected to the water outlet pipe. The water outlet pipe includes an outer pipe for cold and hot water and an inner pipe disposed in the outer pipe for passing purified water. The water outlet head is provided with cold and hot water outlet ports communicating with the outer pipe to discharge cold and hot water and a purified water outlet port communicating with the inner pipe to discharge purified water. The faucet main body is provided with a first water inlet passage for cold water, a second water inlet passage for hot water, a third water inlet passage for purified water, and a first valve core. The faucet main body is provided with a first handle for controlling the first valve core. A second valve core for controlling the on-off of the purified water outlet port and a second handle for controlling the second valve core are installed on the water outlet head. In this solution, only cold purified water and tap water can be discharged. When hot purified water is needed for making tea or milk powder, the cold purified water needs to be first filled into a hot water kettle for heating, which is inconvenient for users. There are also some other three-in-one faucets. Although they have hot water, their internal structures are complex, difficult to be formed by casting, and the overall use of metal parts machined into shape has high costs and cumbersome assembly, which is not conducive to mass production. Content of the Utility Model

[0003] The utility model discloses a three-in-one faucet with hot purified water, which has a simple structure and convenient operation, aiming to improve the problems that the existing purified water faucets can only discharge cold purified water, which is inconvenient for users, and the complex structure has high processing costs.

[0004] The utility model adopts the following scheme:

[0005] A three-in-one faucet with hot purified water includes a housing, a valve seat, a water outlet pipe, a control valve, and a water distribution valve that are adaptively connected to the valve seat. Among them, the housing is formed by casting or pipe fitting welding. The valve seat is an integrally formed water passing part and is limitedly connected to the housing. The valve seat is provided with a cold tap water channel, a hot tap water channel, a mixing channel, a cold purified water inlet channel, a cold purified water outlet channel, and a hot purified water outlet channel. The water outlet pipe is installed at the water outlet end of the valve seat. The control valve is used to control the on-off of the cold and hot tap water channels and the mixing channel. The cold purified water inlet channel is divided into a first branch and a second branch. The first branch is controlled by the control valve to be on-off with the cold purified water outlet channel. The second branch is controlled by the water distribution valve to be on-off with a heater. The water outlet end of the heater is communicated with the hot purified water outlet channel.

[0006] As a further improvement, a water passage is provided on the valve seat, the water inlet end of the water passage is connected with the water outlet end of the water diversion valve, and the water outlet end of the water passage is used to communicate with the heater arranged under the table.

[0007] As a further improvement, a water diversion handle is connected to the water diversion valve, and the connection and disconnection between the second branch and the water passage is controlled by rotating the water diversion handle.

[0008] As a further improvement, the water-dividing handle includes a handle body, an operating rod, a movable rod and a child lock structure. The operating rod is installed or formed on one side of the handle body, the movable rod is movably connected to the operating rod, and the child lock structure is used to lock the water-dividing handle, and the child lock structure can be unlocked by driving the movable rod to move relative to the operating rod.

[0009] As a further improvement, the child lock structure includes a limiting piece, which is sleeved on the open end of the handle body and has a limiting groove on the side facing the handle body. The movable rod is provided with a limiting portion corresponding to the limiting groove. When the child lock structure is locked, the limiting portion is at least partially inserted into the limiting groove. When the child lock structure is unlocked, the limiting portion is removed from the limiting groove.

[0010] As a further improvement, the control valve is a three-inlet and two-outlet valve, including a cold tap water hole, a hot tap water hole, a mixing water hole, a water inlet hole, and a water outlet hole, wherein the cold tap water hole is connected to the cold tap water channel, the hot tap water hole is connected to the hot tap water channel, the mixing water hole is connected to the mixing water channel, the water inlet hole is connected to the first branch, and the water outlet hole is connected to the cold purified water outlet channel.

[0011] As a further improvement, a control handle is connected to the control valve, and the control valve is constructed to rotate the control handle in a first direction in an operable manner to adjust the openness and disconnection of the first branch and the cold purified water outlet channel, and can adjust the openness and disconnection of the cold and hot tap water channels and the mixed water channel by moving the control handle in a second direction.

[0012] As a further improvement, an assembly cavity is provided in the shell, the valve seat is sleeved in the assembly cavity to limit its position, the water outlet pipe is sleeved on the valve seat and fixed to the valve seat by a fastener arranged on the side.

[0013] As a further improvement, the shell is configured as a cross-shaped four-way, the upper end of which is used to install the water outlet pipe, and the lower end is used to connect with the installation pipe, and the two sides respectively form a first installation cavity for assembling the control valve and a second installation cavity for assembling the water diversion valve.

[0014] As a further improvement, threads are provided on the inner walls of both the first installation cavity and the second installation cavity. The control valve and the water distribution valve are both connected to the threads through gland covers to be pressed against the valve seat.

[0015] By adopting the above technical solution, the following technical effects can be achieved by the present utility model:

[0016] 1. By providing a cold and clean water inlet passage with two branches on the valve seat, and using a control valve to control cold and clean water and a water distribution valve to control hot and clean water, independent control of cold and clean water and hot and clean water can be realized, so that cold and hot tap water and cold and hot clean water are integrated on one faucet, facilitating users to use hot and clean water and meeting the needs of different usage scenarios. In addition, the shell structure is simple and can be cast from zinc alloy or welded by pipe fittings. The valve seat is set as an integrally formed water passing part, which can avoid material waste and high processing costs during the overall machining of hardware parts, and can also reduce the weight of the faucet. Preferably, the valve seat can be injection molded to further reduce the cost of the faucet. Only the valve seat and the two valve cores pass water, with a simple structure and convenient installation. Moreover, there is no waterway on the shell, that is, the material of the shell is not restricted by the water passing requirements, and more materials can be selected, thus enhancing the appearance effect of the faucet. Specifically, when the user needs to use tap water, the control valve is driven to connect the cold and hot tap water channels with the mixing channel, and the corresponding tap water flows out from the outlet pipe. When the user needs cold and clean water, the control valve is opened to connect the first branch of the cold and clean water inlet channel with the cold and clean water outlet channel, and at this time, cold and clean water flows out from the outlet pipe. When the user needs to use hot and clean water, the water distribution valve is directly opened to connect the second branch of the cold and clean water with the water inlet end of the heater. The cold and clean water is heated by the heater and then flows to the hot and clean water outlet channel, and at this time, hot and clean water flows out from the outlet pipe. Among them, an outlet inner pipe can be provided corresponding to the mixing channel, the cold and clean water outlet channel, and the hot and clean water outlet channel in the outlet pipe, and a corresponding outlet nozzle is provided at the outlet end of each inner pipe. The user can further judge whether the water flowing out is tap water, cold and clean water or hot and clean water through the position of the outlet nozzle, and can also avoid the pollution of clean water caused by sharing the outlet pipe with tap water. Of course, an outlet cavity can also be provided at the outlet end of the valve seat, the outlet pipe is connected to this outlet cavity, the mixing channel, the cold and clean water outlet channel, and the hot and clean water outlet channel are all connected to this outlet pipe, and an outlet nozzle is provided on the outlet pipe, and tap water, cold and clean water and hot and clean water all flow out from this outlet nozzle.

[0017] 2. A water passing channel is provided on the valve seat. The water inlet end of the water passing channel is connected to the water outlet end of the water distribution valve, and the water outlet end of the water passing channel is used to be connected to a heater arranged under the table. Among them, the water inlet end of the heater is controlled by the water distribution valve, and it does not need to bear the water supply pressure all the time, which can extend the service life of the heater. At the same time, the heater is installed under the table, which is convenient for the maintenance and installation of the heater.

[0018] 3. A water dividing valve is connected with a water dividing handle, and a child lock structure is arranged on the water dividing handle to prevent scalding caused by accidental operation by children or users during use.

[0019] 4. The outer shell is set as a cross-shaped four-way. Its upper end is used to install the water outlet pipe, and its lower end is used to connect with the installation pipe. The two sides respectively form a first installation cavity for assembling the control valve and a second installation cavity for assembling the water dividing valve. Specifically, the outer shell 1 is formed by welding two pipe fittings to form a cross-shaped four-way shape. It has a simple appearance, low cost, simple processing, and at the same time is convenient for disassembly and assembly, which can improve production efficiency and is also convenient for after-sales service and maintenance. In addition, cold and hot tap water and cold and hot purified water are integrated on one faucet. Compared with the structure in the prior art where tap water and purified water are respectively assembled on different faucets, it can reduce the assembly holes on the installation table, save the cost of setting multiple faucets and the installation steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 is a schematic structural diagram of one embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of one embodiment of the present invention;

[0023] Figure 3 is a cross-sectional view when the control handle of one embodiment of the present invention is opened;

[0024] Figure 4 is a schematic structural diagram of the valve seat of one embodiment of the present invention;

[0025] Figure 5 is Figure 4 the bottom view of;

[0026] Figure 6 is along Figure 4 the A-A cross-sectional view in (the curved line with an arrow indicates the water flow direction);

[0027] Figure 7 is along Figure 5 the B-B cross-sectional view in (the curved line with an arrow indicates the water flow direction);

[0028] Figure 8 is a schematic structural diagram of the water dividing handle of one embodiment of the present invention;

[0029] Figure 9 is a schematic structural view of a limiting member according to one embodiment of the present utility model;

[0030] Figure 10 is an exploded view according to one embodiment of the present utility model.

[0031] Icon:

[0032] 1 - housing; 11 - assembly cavity; 12 - first mounting cavity; 13 - second mounting cavity;

[0033] 2 - water outlet pipe; 21 - fastener;

[0034] 3 - control valve; 31 - control handle; 32 - first gland;

[0035] 4 - water distribution valve; 41 - water distribution handle; 411 - handle body; 412 - operating rod; 413 - movable rod; 4131 - limiting part; 414 - limiting member; 4141 - limiting groove; 415 - compression cap; 42 - second gland;

[0036] 5 - valve seat; 51 - cold tap water channel; 52 - hot tap water channel; 53 - mixed water channel; 54 - cold purified water inlet channel; 541 - first branch; 542 - second branch; 55 - cold purified water outlet channel; 56 - hot purified water outlet channel; 57 - water passing channel;

[0037] 6 - mounting pipe. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0039] Combined with Figures 1 to 10, this embodiment provides a three-in-one faucet with hot purified water, including a housing 1, a valve seat 5, and a water outlet pipe 2, a control valve 3, and a water distribution valve 4 that are adaptively connected to the valve seat 5. Among them, the housing 1 is formed by casting or pipe fitting welding. The valve seat 5 is an integrally formed water-passing part and is limit-connected to the housing 1. The valve seat 5 is provided with a cold tap water channel 51, a hot tap water channel 52, a mixing channel 53, a cold purified water inlet channel 54, a cold purified water outlet channel 55, and a hot purified water outlet channel 56. The water outlet pipe 2 is installed at the water outlet end of the valve seat 5. The control valve 3 is used to control the on-off of the cold and hot tap water channels and the mixing channel 53. The cold purified water inlet channel 54 is divided into a first branch 541 and a second branch 542. The first branch 541 is controlled by the control valve 3 to be on-off with the cold purified water outlet channel 55. The second branch 542 is controlled by the water distribution valve 4 to be on-off with the heater. The water outlet end of the heater is communicated with the hot purified water outlet channel 56.

[0040] Exemplarily, when the user needs to use tap water, by driving the control valve 3, the cold and hot tap water channels are made to communicate with the mixing channel 53, and correspondingly, the tap water flows out from the water outlet pipe 2. When the user needs cold purified water, the control valve 3 is opened so that the first branch 541 of the cold purified water inlet channel 54 communicates with the cold purified water outlet channel 55, and at this time, cold purified water flows out from the water outlet pipe 2. When the user needs to use hot purified water, the water distribution valve 4 is directly opened so that the second branch 542 of the cold purified water communicates with the water inlet end of the heater. The cold purified water flows to the hot purified water outlet channel 56 after being heated by the heater, and at this time, hot purified water flows out from the water outlet pipe 2. Among them, one water outlet inner pipe can be correspondingly provided in the water outlet pipe 2 for each of the mixing channel 53, the cold purified water outlet channel 55, and the hot purified water outlet channel 56, and a corresponding water outlet nozzle is provided at the water outlet end of each inner pipe. The user can further judge whether the water flowing out is tap water, cold purified water, or hot purified water through the position of the water outlet nozzle, and it can also prevent the sharing of pipes between the purified water and the tap water, resulting in the pollution of the purified water. Of course, a water outlet cavity can also be provided at the water outlet end of the valve seat 5. The water outlet pipe 2 is communicated with this water outlet cavity. The mixing channel 53, the cold purified water outlet channel 55, and the hot purified water outlet channel 56 are all communicated with this water outlet pipe 2. A water outlet nozzle is provided on the water outlet pipe 2, and the tap water, cold purified water, and hot purified water all flow out from this water outlet nozzle. It is not limited to this, and no specific limitation is made.

[0041] It should be noted that in this embodiment, a cold purified water inlet channel 54 with two branches is provided on the valve seat 5, and a control valve 3 is used to control the cold purified water, and a diverter valve 4 is used to control the hot purified water, so as to achieve independent control of the cold purified water and the hot purified water. Thus, cold and hot tap water as well as cold and hot purified water are integrated on one faucet, facilitating the user to use the hot purified water and meeting the requirements of different usage scenarios. In addition, the structure of the housing 1 is simple and can be cast from zinc alloy or welded from pipe fittings. The valve seat 5 is set as an integrally formed water passing part, which can avoid the material waste and high processing cost during the overall machining of hardware parts, and can also reduce the weight of the faucet. Preferably, the valve seat 5 can be injection molded to further reduce the cost of the faucet. In this embodiment, only the valve seat 5 and the two valve cores pass water, with a simple structure and convenient installation. Moreover, no water circuit is provided on the housing 1, that is, the material of the housing 1 is not restricted by the water passing requirements, and there are more choices of materials, thus enhancing the appearance effect of the faucet.

[0042] In a preferred embodiment, a water passing channel 57 is provided on the valve seat 5. The inlet end of the water passing channel 57 is communicated with the outlet end of the diverter valve 4, and the outlet end of the water passing channel 57 is used to communicate with a heater configured under the table. Among them, the structure and principle of the heater are prior art and will not be elaborated here. The water passing channel 57 is connected to the heater under the table via a hose, and the outlet end of the heater is connected to the hot purified water outlet channel 56 via a hose. When the diverter valve 4 is opened, the cold purified water flows in from the cold purified water inlet channel 54 and flows from the second branch 542 to the water passing channel 57 to enter the heater. After being heated by the heater, the hot purified water flows out from the hot purified water outlet channel 56. Among them, the cold purified water can be water filtered by a filter element, water filtered by a water purifier, or barreled mineral water, purified water, or distilled water, ozone water, etc., without specific limitation. It should be mentioned that in this embodiment, the inlet end of the heater is controlled to open and close by the diverter valve 4, and does not need to bear the water supply pressure all the time, which can extend the service life of the heater. At the same time, the heater is installed under the table, which is convenient for the maintenance and installation of the heater.

[0043] Based on the above embodiments, in an alternative embodiment of the present utility model, a water distribution handle 41 is connected to the water distribution valve 4, and the on-off of the second branch 542 and the water passage 57 is controlled by rotating the water distribution handle 41. The water distribution valve 4 can be a bottom-in and bottom-out switch valve, and the ceramic moving piece in the water distribution valve 4 is rotated by rotating the water distribution handle 41 to achieve the on-off control of the water inlet and outlet. In a preferred embodiment, the water distribution handle 41 includes a handle main body 411, an operating rod 412, a movable rod 413 and a child lock structure. The operating rod 412 is installed or formed on one side of the handle main body 411. The movable rod 413 is movably connected to the operating rod 412. The child lock structure is used to lock the water distribution handle 41 and can be unlocked by driving the movable rod 413 to move relative to the operating rod 412. When the child lock structure is locked, the water distribution handle 41 cannot be rotated, and at this time the water distribution valve 4 cannot be opened. When the child lock structure is unlocked, the water distribution handle 41 can be rotated to open the water distribution valve 4. Preferably, the child lock structure includes a limiting member 414. The limiting member 414 is sleeved on the open end of the handle main body 411, and a limiting groove 4141 is provided on the side facing the handle main body 411. The movable rod 413 is provided with a limiting portion 4131 corresponding to the limiting groove 4141. When the child lock structure is locked, at least a part of the limiting portion 4131 is inserted into the limiting groove 4141. When the child lock structure is unlocked, the limiting portion 4131 is disengaged from the limiting groove 4141. Exemplarily, the operating rod 412 is integrally formed with the handle main body 411. One end of the movable rod 413 is sleeved inside the operating rod 412, and the other end is exposed outside the operating rod 412 and connected to a compression cap 415. A spring is provided between the compression cap 415 and the operating rod 412. By pressing the compression cap 415, the movable rod 413 is driven to move towards the inside of the handle main body 411, correspondingly causing the limiting portion 4131 to be disengaged from the limiting groove 4141. At this time, the operating rod 412 can be driven to drive the handle main body 411 to rotate. When resetting, by pressing the compression cap 415 again, the movable rod 413 is moved to face the limiting groove 4141 and enters the limiting groove 4141 under the action of the spring. The limiting portion 4131 can be a screw assembled on the movable rod 413, not limited thereto. In this embodiment, through the setting of the child lock structure, it is possible to prevent children or users from being scalded due to misoperation during use.

[0044] In another embodiment, the control valve 3 is a three-inlet and two-outlet valve, including a cold tap water hole, a hot tap water hole, a mixed water hole, a water inlet hole, and a water outlet hole, wherein the cold tap water hole is connected to the cold tap water channel 51, the hot tap water hole is connected to the hot tap water channel 52, the mixed water hole is connected to the mixed water channel 53, the water inlet hole is connected to the first branch 541, and the water outlet hole is connected to the cold purified water outlet channel 55. A control handle 31 is connected to the control valve 3, and the control valve 3 is configured to adjust the connection and disconnection of the first branch 541 and the cold purified water outlet channel 55 by rotating the control handle 31 in a first direction in an operably manner, and the connection and disconnection of the cold and hot tap water channels and the mixed water channel 53 can be adjusted by toggling the control handle 31 in a second direction. The direction around the axis of the control valve 3 is the first direction, and the extending direction along the axis of the control valve 3 is the second direction. When the controllable handle 31 is directly turned, the cold purified water flows from the first branch 541 into the water inlet hole, and flows from the water inlet hole to the water outlet hole, and finally flows out from the cold purified water outlet channel 55 connected to the water outlet hole. Figure 3 By turning the handle to the right, the cold and hot water holes are connected to the mixing water hole, and the control handle 31 can be turned in this state to adjust the mixed water temperature, which is not limited to this. Among them, the structure of the three-in-two-out valve is the prior art and will not be repeated here.

[0045] On the basis of the above embodiment, in an optional embodiment of the utility model, an assembly cavity 11 is provided in the housing 1, the valve seat 5 is sleeved in the assembly cavity 11 to limit the position, the water outlet pipe 2 is sleeved on the valve seat 5, and is fixed to the valve seat 5 by a fastener 21 provided on the side. The fastener 21 can be a screw, which is inserted from the side of the housing 1 and connected to the mounting hole on the water outlet pipe 2, so that the water outlet pipe 2 is fixed and limited to the valve seat 5. The valve seat 5 can be a plastic part to save costs.

[0046] Preferably, the housing 1 is provided as a cross-shaped four-way joint. Its upper end is used to install the water outlet pipe 2, and its lower end is used to connect with the installation pipe 6. On both sides, a first installation cavity 12 for assembling the control valve 3 and a second installation cavity 13 for assembling the water distribution valve 4 are respectively formed. Threads are provided on the inner walls of the first installation cavity 12 and the second installation cavity 13. Both the control valve 3 and the water distribution valve 4 are connected to the valve seat 5 in a pressed manner through gland nuts and the threads. Specifically, the housing 1 is formed by welding two pipe fittings to form a cross-shaped four-way joint, which has a simple appearance, low cost, and simple processing. The control valve 3 and the water distribution valve 4 are respectively arranged on both sides of the housing 1, which can prevent users from misoperation, and the two handles are arranged for convenient use by users. During installation, the valve seat 5 is sleeved into the housing 1 for positioning, then the control valve 3 is placed into the first installation cavity 12 and the first gland nut 32 is screwed in to make the control valve 3 abut against the valve seat 5. The water distribution valve 4 is placed into the second installation cavity 13 and the second gland nut 42 is screwed in to make the water distribution valve 4 abut against the valve seat 5. Then, the water outlet pipe 2 is inserted into the valve seat 5 and locked from the side with screws. Among them, the water distribution valve 4 and the water distribution handle 41, and the control valve 3 and the control handle 31 can all be fixed by locking screws from the side. This structure is convenient for disassembly and assembly, which can improve production efficiency and is also convenient for after-sales service and maintenance. In addition, cold and hot tap water and cold and hot purified water are integrated on one faucet. Compared with the structure in the prior art where tap water and purified water are respectively assembled on different faucets, it can reduce the assembly holes on the installation tabletop, save the cost of setting multiple faucets and the installation steps.

[0047] The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention.

Claims

1. A three-in-one faucet with hot water purification, characterized in that: It includes an outer shell, a valve seat, and a water outlet pipe, a control valve and a water diverter valve that are adaptably connected to the valve seat, wherein the outer shell is formed by casting or pipe welding, the valve seat is an integrally formed water-passing part, and is limitedly connected to the outer shell, the valve seat is provided with a cold tap water channel, a hot tap water channel, a mixed water channel, a cold purified water inlet channel, a cold purified water outlet channel and a hot purified water outlet channel, the water outlet pipe is installed at the outlet end of the valve seat, the control valve is used to control the connection and disconnection of the cold and hot tap water channels and the mixed water channel, the cold purified water inlet channel is divided into a first branch and a second branch, the first branch is connected and disconnected with the cold purified water outlet channel via the control valve; the second branch is connected and disconnected with the heater via the water diverter valve, and the water outlet end of the heater is connected to the hot purified water outlet channel.

2. The three-in-one faucet with hot water purification according to claim 1, characterized in that: The valve seat is provided with a water passage, the water inlet end of the water passage is communicated with the water outlet end of the water diversion valve, and the water outlet end of the water passage is used to communicate with the heater arranged under the table.

3. The three-in-one faucet with hot water purification according to claim 2, characterized in that: The water diversion valve is connected with a water diversion handle, and the opening and closing of the second branch and the water passage are controlled by rotating the water diversion handle.

4. The three-in-one faucet with hot water purification according to claim 3, characterized in that: The water-dividing handle includes a handle body, an operating rod, a movable rod and a child lock structure. The operating rod is installed or formed on one side of the handle body. The movable rod is movably connected to the operating rod. The child lock structure is used to lock the water-dividing handle, and the child lock structure can be unlocked by driving the movable rod to move relative to the operating rod.

5. The three-in-one faucet with hot water purification according to claim 4, characterized in that: The child lock structure includes a limiting member, which is sleeved on the open end of the handle body and has a limiting groove on the side facing the handle body. The movable rod is configured with a limiting portion corresponding to the limiting groove. When the child lock structure is locked, the limiting portion is at least partially inserted into the limiting groove. When the child lock structure is unlocked, the limiting portion is released from the limiting groove.

6. The three-in-one faucet with hot water purification according to claim 1, characterized in that: The control valve is a three-inlet and two-outlet valve, including a cold tap water hole, a hot tap water hole, a mixing water hole, a water inlet hole, and a water outlet hole, wherein the cold tap water hole is connected to the cold tap water channel, the hot tap water hole is connected to the hot tap water channel, the mixing water hole is connected to the mixing water channel, the water inlet hole is connected to the first branch, and the water outlet hole is connected to the cold purified water outlet channel.

7. The three-in-one faucet with hot water purification according to claim 1, characterized in that: A control handle is connected to the control valve, and the control valve is constructed to adjust the connection between the first branch and the cold purified water outlet channel by rotating the control handle in a first direction in an operable manner, and to adjust the connection between the cold and hot tap water channels and the mixed water channel by moving the control handle in a second direction.

8. The three-in-one faucet with hot water purification according to claim 1, characterized in that: An assembly cavity is arranged in the shell, the valve seat is sleeved in the assembly cavity to limit its position, the water outlet pipe is sleeved on the valve seat and fixed to the valve seat by a fastener arranged on the side.

9. The three-in-one faucet with hot water purification according to any one of claims 1 to 8, characterized in that: The shell is configured as a cross-shaped four-way, the upper end of which is used to install the water outlet pipe, and the lower end is used to connect with the installation pipe, and the two sides respectively form a first installation cavity for assembling the control valve and a second installation cavity for assembling the water diversion valve.

10. The three-in-one faucet with hot water purification according to claim 9, characterized in that: The inner walls of the first installation cavity and the second installation cavity are both provided with threads, and the control valve and the water diversion valve are both connected to the threads through a gland to be pressed tightly against the valve seat.

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