Faucets and water purifiers

Abstract

The present invention relates to the field of household appliances, and provides a faucet and a water purifier, wherein the faucet comprises: a faucet body, wherein the faucet body is provided with a body limiting portion; a control valve core, wherein the control valve core is installed on the faucet body; a first end cover, wherein the first end cover is movably installed on the faucet body and connected to the control valve core; and a lock body, wherein the lock body is movably installed on the first end cover between a locking position and an unlocking position, wherein the lock body is provided with two limiting structures arranged in opposite directions. According to the faucet of the embodiment of the present invention, by providing a movable lock body, the safety lock function of the faucet can be realized, and by providing limiting structures on both sides of the lock body in opposite directions, the force on the lock body can be balanced, thereby ensuring that the lock body can maintain stable working performance according to the design target during long-term use.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a faucet and a water purifier. Background Art

[0002] Since faucets connected to a heating system can produce hot water, children or other dangerous people may accidentally operate them and get scalded. In order to solve this problem, a safety lock is set at the hot water switch of the faucet in the related art. However, the inventor found through research that the safety lock in the related art is unstable. Especially during long-term use, the case of the safety lock is easy to tilt, resulting in failure of the locking function and causing danger. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a faucet that realizes a stable safety lock function.

[0004] The invention also provides a water purifier.

[0005] A faucet according to an embodiment of the first aspect of the present invention comprises: a faucet body, the faucet body being provided with a body limiting portion; a control valve core, the control valve core being mounted on the faucet body; a first end cover, the first end cover being movably mounted on the faucet body and connected to the control valve core; a lock body, the lock body being movably mounted on the first end cover between a locked position and an unlocked position, the lock body being provided with two limiting structures arranged back to back, in the locked position one of the limiting structures is limitedly matched with the body limiting portion so that the first end cover is locked with the faucet body, and the other limiting structure is limitedly matched with the first end cover, in the unlocked position the limiting structure is disengaged from the body limiting portion so that the first end cover is unlocked with the faucet body.

[0006] According to the faucet of the embodiment of the present invention, a movable lock body is provided to realize the safety lock function of the faucet, and by providing limiting structures on both sides of the back of the lock body, the force on the lock body can be balanced, thereby ensuring that the lock body can maintain stable working performance according to the design objectives during long-term use.

[0007] A water purifier according to an embodiment of the second aspect of the present invention includes: a faucet as described above; a filtration system, the filtration system having a raw water inlet and a clean water outlet; a heating system, the water inlet of the heating system being connected to the clean water outlet; wherein the water outlet of the heating system is connected to the first inlet of the mixing water valve core and the inlet of the control valve core, and the clean water outlet is connected to the second inlet of the mixing water valve core.

[0008] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 A schematic diagram of a water circuit of a water purifier provided by an embodiment of the present invention;

[0011] Figure 2 A schematic diagram of the structure of the water purifier provided by an embodiment of the present invention when placed vertically;

[0012] Figure 3 A schematic diagram of the structure of the water purifier provided by an embodiment of the present invention when placed horizontally;

[0013] Figure 4 An exploded view of a water purifier provided by an embodiment of the present invention;

[0014] Figure 5 A schematic diagram of the internal structure of a water purifier provided by an embodiment of the present invention;

[0015] Figure 6 An exploded view of a filter module and a heating module of a water purifier provided in an embodiment of the present invention;

[0016] Figure 7 for Figure 6 A partial enlarged view of point E in the middle;

[0017] Figure 8 An exploded view of a filter module of a water purifier provided in an embodiment of the present invention;

[0018] Fig. 9 for Figure 8 A partial enlarged view of point F in the middle;

[0019] Fig.10 A schematic diagram of the structure of a filter waterway plate of a water purifier provided in an embodiment of the present invention;

[0020] Fig.11 An exploded view of a heating module of a water purifier provided in an embodiment of the present invention;

[0021] Fig.12 for Fig.11 A partial enlarged view of the G in the middle;

[0022] Fig.13 A schematic diagram of the structure of a heating system for a water purifier provided in an embodiment of the present invention;

[0023] Fig.14 An exploded diagram of a heating system of a water purifier provided by an embodiment of the present invention;

[0024] Fig.15 A schematic diagram of the structure of the heating system of the water purifier provided by an embodiment of the present invention when placed vertically;

[0025] Fig.16 A schematic diagram of the structure of the heating system of the water purifier provided by an embodiment of the present invention when placed horizontally;

[0026] Fig.17 A schematic diagram of the structure of a water outlet waterway plate of a water purifier provided in an embodiment of the present invention;

[0027] Fig.18 A schematic structural diagram of a water outlet waterway plate of a water purifier provided in an embodiment of the present invention after a valve is installed at one viewing angle;

[0028] Fig.19 A schematic structural diagram of a water outlet waterway plate of a water purifier provided in an embodiment of the present invention after a valve is installed at another viewing angle;

[0029] Fig. 20 A schematic structural diagram of a water outlet waterway plate of a water purifier provided by an embodiment of the present invention after a valve is installed at another viewing angle;

[0030] Fig.21 A control logic schematic diagram of a heating system and an exhaust valve when the water purifier provided in an embodiment of the present invention is not producing water;

[0031] Fig. 22 A control logic schematic diagram of a heating system and an exhaust valve when the water purifier provided in an embodiment of the present invention produces water;

[0032] Fig.23 An exploded view of a faucet provided in an embodiment of the present invention;

[0033] Fig.24 A schematic diagram of the water path of a faucet provided in an embodiment of the present invention;

[0034] Fig.25 An exploded view of a partial structure of a faucet provided by an embodiment of the present invention;

[0035] Fig.26 An exploded view of a partial structure of a faucet provided by an embodiment of the present invention;

[0036] Fig. 27 for Fig.26 A partial enlarged view of the H in the middle;

[0037] Fig.28 for Fig.26 A partial enlarged view of point I in the middle;

[0038] Fig.29 A schematic structural diagram of a second end cover of a faucet provided in an embodiment of the present invention;

[0039] Fig.30 A schematic structural diagram of a water outlet pipe of a faucet provided in an embodiment of the present invention.

[0040] Reference numerals:

[0041] Filter system 100, raw water inlet 101, water pump inlet 102, water pump outlet 103, waste water outlet 104, clean water outlet 105, filter waterway plate 110, pipe body 111, support 112, connecting arm 113, first port 121a, second port 122a, third port 123a, fourth port 124a, fifth port 125a, sixth port 121b, seventh port 122b, eighth port 122c, ninth port 123b, tenth port 124b, eleventh port 124c, twelfth port 125b;

[0042] Heating system 200, tank body 210, bottom surface 211, first side surface 212, tank body 213, upper end cover 214, lower end cover 215, water inlet 221, water outlet 222, exhaust port 223, terminal avoidance hole 224, temperature sensor installation hole 225, water inlet pipe 226, water outlet pipe 227, exhaust pipe 228, tank body assembly bracket 229, heating pipe 230, terminal 231, temperature controller fixing bracket 250;

[0043] A first bracket 310, a connecting arm mounting hole 311, a first flange 312, a tube body avoidance hole 313, and a positioning column 314;

[0044] A second bracket 320, a first connecting structure 321, a second flange 322, a mounting cavity 323, a sleeve 324, a first plate 325, a second plate 326, and a wiring groove 327;

[0045] Protective cover 400, cover plate 410, second connection structure 411, notch 412, water retaining plate 420, main body section 421, avoidance section 422, water retaining rib 423, wire opening 424, guide rib 425;

[0046] Water pump 510, first branch 520, second branch 530, water return pipe 540, safety branch 550, clean water check valve 561, clean water control valve 562, water return check valve 563, water return control valve 564, exhaust check valve 565, exhaust valve 566, waste water valve 567, water pump inlet valve 568, water leakage protection valve 569;

[0047] Raw water inlet 601, waste water outlet 602;

[0048] Casing 701, front housing 702, upper cover 703, top cover 704, base 705, decorative plate 706, power adapter 707, display 708, electric control box 709, power board 710, TDS detection probe 711, pressure rod 712;

[0049] Faucet 800, faucet body 810, body limiting portion 811, control valve core 820, first end cover 830, cover body 831, mounting hole 831a, guide sleeve 832, first side wall 832a, second side wall 832b, avoidance groove 832c, guide surface 832d, connecting portion 833, limiting flange 833a, support column 834, mounting groove 834a, first nut 835, lock body 84 0, limiting groove 841, limiting hole 842, limiting shaft 843, elastic reset member 844, water mixing valve core 851, second induction magnet 852a, second end cover 852, second nut 855, inner core 860, water distribution member 870, first water outlet pipe 881, second water outlet pipe 882, electric control module 891, screw 892, spring piece 893, fixing nut 894, decorative ring 895, bottom cover 896;

[0050] Water outlet waterway plate 900, substrate 910, mounting structure 911, first water pipe 921, first inlet 921a, first outlet 921b, first interface 921c, second interface 921d, second water pipe 922, second inlet 922a, second outlet 922b, third water pipe 923, third inlet 923a, third outlet 923b, fourth water pipe 924, fourth inlet 924a, fourth outlet 924b, fifth water pipe 935, fifth inlet 935a, fifth outlet 935b, fifth interface 935c, sixth water pipe 936, sixth inlet 936a, sixth outlet 936b, seventh water pipe 947, seventh inlet 947a, seventh outlet 947b, eighth water pipe 958, eighth inlet 958a, eighth outlet 958b;

[0051] The first direction is A, the second direction is B, and the third direction is C. DETAILED DESCRIPTION

[0052] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0054] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0055] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0057] Combine the following Figure 1-Figure 30The water purifier according to the embodiment of the present invention is described. The water purifier provided by the embodiment of the present invention may be a household water purifier, such as an under-sink water purifier. The water purifier is connected to a faucet 800 , and water is discharged through the faucet 800 .

[0058] First combine Figure 23-Figure 30 The faucet 800 according to the embodiment of the present invention is described. The faucet 800 can be used in a water purifier or other water-making equipment, such as an independent heating equipment.

[0059] like Figure 23-Figure 29 As shown, the faucet 800 of the first embodiment of the present invention includes: a faucet body 810, a control valve core 820, a first end cover 830 and a lock body 840.

[0060] Among them, the faucet body 810 can be a shell structure with an installation cavity, the shell structure can have multiple openings, the faucet body 810 can be a multi-way pipe structure formed by connecting multiple pipe bodies, the faucet body 810 can be a metal part, for example, the faucet body 810 can be made of stainless steel, the faucet body 810 is provided with a body limiting portion 811, the body limiting portion 811 can be a boss protruding from a certain end face of the faucet body 810, or a groove body provided on a certain end face of the faucet body 810.

[0061] The control valve core 820 is installed on the faucet body 810. A flow channel is provided in the control valve core 820. The control valve core 820 is used to realize the on-off of one water flow. For example, the control valve core 820 can be used to control the on-off of hot water.

[0062] The first end cover 830 is movably mounted on the faucet body 810, and the first end cover 830 is connected to the control valve core 820. In actual use, the first end cover 830 is operated to move (such as rotate or move) the first end cover 830 relative to the faucet body 810, so as to control the control valve core 820.

[0063] The lock body 840 is movably mounted on the first end cover 830 between a locked position and an unlocked position. The lock body 840 is provided with two limit structures arranged back to back. In the locked position, one of the limit structures cooperates with the main body limit portion 811 to lock the first end cover 830 and the faucet body 810, and the other limit structure cooperates with the first end cover 830. In the unlocked position, the limit structure is disengaged from the main body limit portion 811 to unlock the first end cover 830 and the faucet body 810.

[0064] It can be understood that when the lock body 840 is in the locked position, the first end cover 830 and the faucet body 810 cannot move relative to each other, that is, when the first end cover 830 is operated, the first end cover 830 is locked and water cannot flow out; only when the lock body 840 is switched to the unlocked position, the first end cover 830 and the faucet body 810 can be unlocked, and at this time, when the first end cover 830 is operated, water can flow out.

[0065] The lock body 840 is provided with at least two limiting structures, which are arranged in reverse directions relative to the lock body 840. One of the limiting structures is used to cooperate with the limiting portion 811 of the main body, and the other limiting structure facing away from the lock body is used to cooperate with the first end cover 830. In this way, the two sides of the lock body 840 are subjected to balanced force and will not be deformed or warped due to unilateral force. During long-term use, it can maintain stable working performance according to the design objectives.

[0066] According to the faucet 800 of the embodiment of the present invention, a movable lock body 840 is provided to realize the safety lock function of the faucet 800, and by providing limiting structures on both sides of the back of the lock body 840, the force on the lock body 840 can be balanced, thereby ensuring that the lock body 840 can maintain stable working performance according to the design objectives during long-term use.

[0067] In some embodiments, Figure 25-27 As shown, the faucet 800 may include a limit axis 843, such as Fig. 27 As shown, the lock body 840 is provided with a limiting hole 842 passing through the lock body 840, and the limiting shaft 843 passes through the limiting hole 842 and extends from both ends of the limiting hole 842. The limiting shaft 843 extends from both ends of the limiting hole 842 to form two limiting structures respectively.

[0068] In this way, the processing of the two limiting structures is simple, and the alignment of the limiting positions on both sides can be easily achieved, and the force on one side can be transmitted to the other side through the limiting shaft 843, ensuring that the force on both sides of the lock body 840 is uniform.

[0069] like Fig. 27 As shown, the lock body 840 may be a shell structure, and the limiting hole 842 passes through two oppositely arranged side walls of the lock body 840 .

[0070] Of course, the above-mentioned limiting structure can also be formed by other methods, such as forming bosses on two opposite side walls of the lock body 840 respectively.

[0071] In some embodiments, Fig.25As shown, the first end cover 830 is pivotally mounted on the faucet body 810 around the pivot axis, and the body limit portion 811 is in an arc shape around the pivot axis. When the limit structure is located at one end of the body limit portion 811, the rotation of the first end cover 830 can be limited, thereby achieving the locking of the first end cover 830 (control valve core 820).

[0072] In some embodiments, Fig.25 and Fig. 27 As shown, the first end cover 830 may include: a cover body 831 and a guide sleeve 832 .

[0073] Among them, Fig.25 As shown, the cover 831 is provided with a mounting hole 831a, and the lock body 840 passes through the mounting hole 831a, so that the lock body 840 can move along the mounting hole 831a, and the cover 831 can be a cylindrical hollow structure. The guide sleeve 832 protrudes from the inner wall of the cover 831 and is directly opposite to the mounting hole 831a, and the lock body 840 can be movably installed in the guide sleeve 832.

[0074] The inner wall of the guide sleeve 832 is flush with the hole wall of the mounting hole 831a. When the lock body 840 moves, the guide sleeve 832 plays a guiding role to prevent the lock body 840 from deviating from the designed track.

[0075] The mounting hole 831 a may be provided on the annular peripheral wall of the cover body 831 , the guide sleeve 832 may be provided on the annular peripheral wall of the cover body 831 , and the guide sleeve 832 and the cover body 831 may be formed as one body.

[0076] In some embodiments, Fig. 27 As shown, the guide sleeve 832 has a first side wall 832a and a second side wall 832b, the first side wall 832a faces the main body limiting portion 811, and the second side wall 832b is arranged opposite to the first side wall 832a. The first side wall 832a and the second side wall 832b are both provided with an avoidance groove 832c, and the avoidance groove 832c extends along the movement direction of the lock body 840, that is, the avoidance groove 832c extends along the axial direction of the mounting hole 831a.

[0077] The two limiting structures extend into the avoidance groove 832c respectively, and one of the limiting structures penetrates the corresponding avoidance groove 832c to be suitable for limiting cooperation with the main body limiting portion 811. When the lock body 840 is stably in the locked position, the limiting structure stops at the top of the avoidance groove 832c, and the top of the avoidance groove 832c defines an extreme position of the limiting structure (lock body 840), that is, the locked position of the lock body 840, so that the lock body 840 can be stably maintained in the locked position.

[0078] In some embodiments, Fig. 27As shown, the notch of the avoidance groove 832c is provided with an outwardly expanding guide surface 832d, which can be arc-shaped or plane-shaped. The guide surface 832d is used to guide the limiting structure into the avoidance groove 832c again when the lock body 840 moves to the limit structure beyond the range of the avoidance groove 832c.

[0079] In some embodiments, Figure 25-27 As shown, the faucet 800 may further include: an elastic reset member 844, which is elastically installed between the lock body 840 and the first end cover 830, so that the lock body 840 is located in the locking position in a natural state, that is, the lock body 840 is always in the locking position.

[0080] In other words, when no external force is applied to the lock body 840, the lock body 840 remains in the locked position under the elastic force of the elastic reset member 844, or when the external force applied to the lock body 840 disappears, the lock body 840 automatically resets to the locked position.

[0081] The elastic return member 844 can be a spring and is in a compressed state. The elastic force of the elastic return member 844 can press the lock body 840 outward so that the lock body 840 remains in the locked position, that is, the limiting structure stops at the top of the avoidance groove 832c. At this time, the limiting structure is just located at the end of the limiting part 811 of the main body.

[0082] The elastic return member 844 may be a truncated cone-shaped spiral structure, with one end facing the lock body 840 being an upper bottom and the other end being a lower bottom, so as to provide a more stable elastic force.

[0083] In some embodiments, Figure 25-28 As shown, the first end cover 830 includes: a cover body 831 and a connecting portion 833. The connecting portion 833 is installed in the cover body 831. For example, in an embodiment where the cover body 831 is a cylindrical hollow structure, the connecting portion 833 may protrude inward from the end surface of the cover body 831. The connecting portion 833 is connected to the control valve core 820. The connecting portion 833 may be a box-shaped structure with one end open. The control valve core 820 has a protruding polygonal shaft, and the polygonal shaft extends into the connecting portion 833. In this way, when the first end cover 830 is rotated, the control of the control valve core 820 can be achieved. The connecting portion 833 and the cover body 831 may be formed as one body.

[0084] In some embodiments, one end of the elastic return member 844 stops at the connecting portion 833, so that there is no need to provide an independent supporting structure in the first end cover 830, and the structure of the entire first end cover 830 is simpler.

[0085] In some embodiments, Fig. 27As shown, the connecting portion 833 is provided with limiting flanges 833a on both sides of the outer wall of the elastic reset member, that is, the connecting portion 833 is provided with limiting flanges 833a on both sides of the outer wall facing the lock body 840, and the limiting flanges 833a protrude in the direction close to the lock body 840. The limiting flanges 833a are used to position the elastic reset member 844 to prevent the elastic reset member 844 from deflecting.

[0086] In some embodiments, Fig. 27 As shown, a limiting groove 841 is provided at the end of the lock body 840, and one end of the elastic reset member 844 stops at the bottom of the limiting groove 841. The limiting groove 841 is also used to position the elastic reset member 844 to prevent the elastic reset member 844 from deflecting.

[0087] In some embodiments, one of the first end cap 830 and the faucet body 810 is equipped with a Hall sensor, and the other is equipped with an induction magnet. In this way, the first end cap 830 can be monitored by the induction signal of the Hall sensor, and the Hall sensor can be connected to the water production equipment (such as the heating system 200).

[0088] In other words, the faucet 800 realizes mechanical control of water output, and the electrical signal controls the water production equipment.

[0089] In the related technology, electronically controlled faucets and mechanical valve core controlled faucets are commonly used. Electronically controlled faucets have problems with poor touch and dripping in the kitchen environment, and require an additional control valve at the machine end to take up extra space. Mechanically valve core controlled faucets are usually controlled by pressure switches or flow sensors to send signals to the water-making equipment. The above methods will bring a certain pressure load to the water system.

[0090] The embodiment of the present invention uses a mechanical valve core to control the faucet 800, and a Hall sensor monitors the mechanical valve core, which can eliminate the above problems.

[0091] Of course, the faucet 800 of the embodiment of the present invention can also monitor the mechanical valve core through a reed switch or infrared sensing, which will not be described in detail here.

[0092] In one embodiment, Fig.28 As shown, the first end cover 830 is installed with an induction magnet, and the faucet body 810 is installed with a Hall sensor; the first end cover 830 is provided with a support column 834 protruding from the end surface, and the support column 834 is provided with a mounting groove 834a, and the induction magnet is installed in the mounting groove 834a. The induction magnet is arc-shaped, and there are two support columns 834, which are spaced around the pivot axis of the first end cover 830, and the ends of the two support columns 834 are provided with mounting grooves 834a that are open to each other, and the mounting angle of the induction magnet with the first end cover 830 is 5°-15°.

[0093] In some embodiments, Fig.23 and Fig.24 As shown, the faucet 800 further includes: a water mixing valve core 851 , a second end cover 852 , a first water outlet pipe 881 and a second water outlet pipe 882 .

[0094] The mixing valve core 851 is installed on the faucet body 810, and has a first inlet, a second inlet and a mixing outlet, the mixing outlet is connected to the first inlet, and the mixing outlet is connected to the second inlet. The mixing valve core 851 and the control valve core 820 can be installed on opposite sides of the faucet body 810 respectively.

[0095] The second end cover 852 is movably mounted on the faucet body 810 , and the second end cover 852 is connected to the water mixing valve core 851 . The second end cover 852 is used to control the water mixing valve core 851 .

[0096] The first water outlet pipe 881 is connected to the outlet of the control valve core 820 ; the second water outlet pipe 882 is connected to the mixed water outlet of the mixed water valve core 851 .

[0097] The outlet of the first water outlet pipe 881 forms a first water supply port, and the outlet of the second water outlet pipe 882 forms a second water supply port. The first water supply port can be used to supply hot water, and the second water supply port is used to supply normal temperature water or medium temperature water.

[0098] When hot water is needed, press the lock body 840 and keep it still, and rotate the first end cover 830 to allow hot water to flow out from the first water outlet pipe 881; when normal temperature water or medium temperature water is needed, rotate the second end cover 852 to allow normal temperature water or medium temperature water to flow out from the second water outlet pipe 882, and the second end cover 852 can be designed with movement trajectories in two directions, which are respectively used to control the water flow rate and the mixing ratio of normal temperature water and hot water.

[0099] In one embodiment, Fig.29 As shown, the second end cover 852 is installed with an induction magnet (second induction magnet), and the faucet body 810 is installed with a Hall sensor; the mounting structure for mounting the second induction magnet on the second end cover 852 can refer to the first end cover 830, and the mounting angle of the second induction magnet and the second end cover 852 is 5°-15°.

[0100] In some embodiments, Fig.23 As shown, the faucet 800 may further include an inner core 860 .

[0101] The inner core 860 is installed on the faucet body 810, and the inner core 860 has a first flow channel, a second flow channel, a third flow channel and a fourth flow channel. The first flow channel has two outlets. The two outlets of the first flow channel are respectively connected to the inlet of the control valve core 820 and the first inlet of the mixing valve core 851, and the outlet of the second flow channel is connected to the second inlet of the mixing valve core 851. Hot water flows into the first flow channel from the inlet of the first flow channel, and flows into the control valve core 820 and the mixing valve core 851 from the two outlets of the first flow channel respectively. Normal temperature water flows into the second flow channel from the inlet of the second flow channel, and then flows into the mixing valve core 851.

[0102] The first water outlet pipe 881 is connected to the outlet of the control valve core 820 through the third flow channel; the second water outlet pipe 882 is connected to the mixed water outlet of the mixed water valve core 851 through the fourth flow channel.

[0103] That is to say, the inner core 860 is used to realize the input of hot water and normal temperature water to the two valve cores, and is also used to realize the output of hot water and mixed water to the two water outlet pipes, so that the structure of the entire faucet 800 is relatively simple.

[0104] In some embodiments, Fig.23 As shown, the faucet 800 may further include: a water distribution member 870, the water distribution member 870 is installed on the faucet body 810, the water distribution member 870 has a first passage and a second passage, the first water outlet pipe 881 is connected to the third flow channel through the first passage, and the second water outlet pipe 882 is connected to the fourth flow channel through the second passage. The first passage can be provided at the inner circle of the water distribution member 870, and the second passage can be provided at the outer circle of the water distribution member 870.

[0105] In some embodiments, Fig.30 As shown, the second water outlet pipe 882 is sleeved outside the first water outlet pipe 881. In this way, the inner peripheral wall of the first water outlet pipe 881 defines a flow channel for hot water, and the annular cavity between the second water outlet pipe 882 and the first water outlet pipe 881 defines a flow channel for mixed water. Since the hot water is in the inner circle, it can prevent scalding when touching the water outlet pipe.

[0106] Of course, the first water outlet pipe 881 and the second water outlet pipe 882 of the embodiment of the present invention can be integrated into one water pipe, that is, the hot water and the mixed water flow out from the same flow channel.

[0107] Alternatively, the first water outlet pipe 881 and the second water outlet pipe 882 can be arranged side by side as a double-channel water outlet pipe.

[0108] In some embodiments, Fig.23 As shown, the faucet 800 of the embodiment of the present invention may include: a first nut 835, the control valve core 820 is installed on the faucet body 810 through the first nut 835, and the external thread of the first nut 835 is threadedly connected to one of the internal threads of the faucet body 810.

[0109] In some embodiments, Fig.23 As shown, the faucet 800 of the embodiment of the present invention may include: a second nut 855 and a decorative ring 895, the mixing valve core 851 is installed on the faucet body 810 through the second nut 855, the external thread of the second nut 855 is threadedly connected to one of the internal threads of the faucet body 810, and the decorative ring 895 is used to decorate the second end cover 852.

[0110] In some embodiments, Fig.23 As shown, the faucet 800 of the embodiment of the present invention may include: an electronic control module 891, which is electrically connected to the Hall sensor and can also be electrically connected to the control system of the water making equipment. The electronic control module 891 may be provided with a display screen for displaying water temperature, or filter element service life, etc.

[0111] In some embodiments, Fig.23 As shown, the faucet 800 of the embodiment of the present invention may include: a screw 892, a spring 893, a fixing nut 894 and a bottom cover 896, and the screw 892, the spring 893, the fixing nut 894 and the bottom cover 896 are used to be connected to the faucet body 810 to achieve the packaging and fixation of the faucet body 810.

[0112] The embodiment of the present invention further provides a water purifier, which includes: a faucet 800 , a filtering system 100 and a heating system 200 .

[0113] The faucet 800 may be the faucet 800 having both the control valve core 820 and the water mixing valve core 851. The filtration system 100 has a raw water inlet 101 and a clean water outlet 105, and the water inlet of the heating system 200 is connected to the clean water outlet 105, wherein the water outlet 222 of the heating system 200 is connected to the first inlet of the water mixing valve core 851 and the inlet of the control valve core 820, and the clean water outlet 105 is connected to the second inlet of the water mixing valve core 851.

[0114] The water purifier according to the embodiment of the present invention integrates water purification and heating functions. When hot water is supplied, the corresponding faucet 800 is provided with a lock body 840 to prevent accidental opening, thereby providing higher safety.

[0115] like Figure 1-Figure 6 As shown, the water purifier according to the second embodiment of the present invention includes: a filtering system 100 , a heating system 200 and a water pump 510 .

[0116] The filtration system 100 has a raw water inlet 101 and a purified water outlet 105. The raw water inlet 101 can be directly or indirectly connected to a raw water pipe, such as a tap water pipe. Raw water to be filtered flows into the filtration system 100 from the raw water inlet 101, and purified water flows out from the purified water outlet 105 after being filtered.

[0117] The heating system 200 has a water inlet 221 and a water outlet 222. The water inlet 221 of the heating system 200 is connected to the purified water outlet 105 of the filtering system 100, and the water outlet 222 of the heating system 200 is connected to the first water supply port of the water purifier. The heating system 200 is used to heat water flowing through the heating system 200.

[0118] The water pump 510 is connected to the filtration system 100, and the water pump 510 is arranged upstream of the clean water outlet 105 of the filtration system 100. The water pump 510 is used to drive water to flow from the raw water inlet 101 of the filtration system 100 to the clean water outlet 105 of the filtration system 100, and the water pump 510 is used to drive water to be discharged from the water outlet 222 of the heating system 200.

[0119] In other words, in one of the working modes of the water purifier, raw water flows into the filtration system 100 from the raw water inlet 101 of the filtration system 100, and is driven by the water pump 510. After filtration, purified water flows out from the purified water outlet 105 of the filtration system 100. The purified water flowing out from the purified water outlet 105 of the filtration system 100 flows into the heating system 200 from the water inlet 221 of the heating system 200. After heating, driven by the water pump 510, the purified water flows into the first water supply port of the water purifier from the water outlet 222 of the heating system 200, thereby supplying hot water.

[0120] like Figure 1 As shown, a water inlet 221 is provided at the lower part of the heating system 200, and a water outlet 222 is provided at the upper part of the heating system 200. In other words, the purified water obtained after filtration flows into the heating system 200 from the lower part of the heating system 200 to be heated, and when hot water is needed, the hot water flows out from the water outlet 222 at the upper part of the heating system 200 under the action of the water pump 510.

[0121] It can be understood that after the pure water entering the heating system 200 is heated, the density of the hot water is relatively small and it floats, while the density of the cold water is relatively large and it sinks.

[0122] In addition to driving raw water to flow from the raw water inlet 601 to the clean water outlet 105 for filtration, the water pump 510 can also drive hot water to be discharged from the water outlet 222 of the heating system 200 .

[0123] In other words, the water pump 510 is both a driving pump for the filtering system 100 and a driving pump for the heating system 200. The hot water in the embodiment of the present invention is not pumped out from the heating system 200 by designing an independent water pump, but by forming a water pressure difference between the water inlet 221 and the water outlet 222 of the heating system 200 through the water pump 510 shared with the filtering system 100, and the upper hot water is pushed out to the first water supply port of the water purifier through the water pressure difference. In this way, the introduction of outside air into the water path of the water purifier can be avoided to prevent secondary pollution.

[0124] like Figure 1 As shown, the return pipe 540 is connected between the clean water outlet 105 and the inlet of the water pump 510. When the water purifier is just turned on, when the water pump 510 is working, the pure water at the clean water outlet 105 can be sucked into the water pump 510 through the return pipe 540. Since the water pump 510 is arranged upstream of the clean water outlet 105 of the filter system 100, the pure water sucked in can enter the filter system 100 again for at least one level of filtration.

[0125] In other words, when the return pipe 540 is connected, the first cup of water with poor quality can be prevented from flowing out, and the quality of the water introduced into the filter system 100 is equivalent to enhancing the quality of the purified water at the purified water outlet 105 of the filter system 100. In particular, for the first cup of water, the quality of the first cup of water can be greatly improved by setting the return pipe 540.

[0126] The water purifier according to the embodiment of the present invention integrates water purification and heating functions. By setting the water inlet 221 at the lower part of the heating system 200, setting the water outlet 222 at the upper part of the heating system 200, and combining the push-type water outlet method of the water pump 510, it is possible to avoid the introduction of external air into the water channel of the water purifier to prevent secondary pollution. By setting the return pipe 540, the quality of the first cup of water can be greatly improved.

[0127] In some embodiments, Figure 1 As shown, the return pipe 540 is provided with a return control valve 564, which is used to control the conduction state of the return pipe 540. The return control valve 564 can be a solenoid valve, and the return control valve 564 can be electrically connected to the controller of the water purifier. The water purifier is configured to open the return control valve 564 and continue for a preset time each time the water purifier is turned on. The preset time can be 5s-25s, such as 10s.

[0128] In some embodiments, Figure 1As shown, the return pipe 540 is provided with a return check valve 563 and a return control valve 564. The return check valve 563 is unidirectional from the clean water outlet 105 to the inlet of the water pump 510. The return control valve 564 is used to control the conduction state of the return pipe 540. The return control valve 564 can be a solenoid valve. The return check valve 563 can prevent the water that has not been completely filtered from the return pipe 540 from directly flowing into the clean water outlet 105 or the first water supply port.

[0129] The water purifier has a fresh water return mode, in which the water pump 510 and the return water control valve 564 are turned on. The water purifier is configured to start the fresh water return mode each time the water purifier is powered on, and the mode lasts for a preset time, which may be 5s-25s, such as 10s.

[0130] In some embodiments, Figure 1 As shown, the heating system 200 has an exhaust port 223, and the water purifier further includes: a safety branch 550, and the safety branch 550 is connected between the exhaust port 223 of the heating system 200 and the wastewater outlet 602 of the water purifier.

[0131] The safety branch 550 is used to release pressure through the exhaust port 223 and the safety branch 550 when the pressure in the heating system 200 is too high, and the steam or water discharged during the pressure release can be discharged through the waste water outlet 602 of the water purifier.

[0132] like Figure 1 As shown, the safety branch 550 may be provided with an exhaust check valve 565 and an exhaust valve 566. The exhaust check valve 565 is unidirectionally connected from the exhaust port 223 of the heating system 200 to the wastewater outlet 602. The exhaust valve 566 is used to control the conduction state of the safety branch 550. The exhaust valve 566 may be a solenoid valve, and the exhaust valve 566 may be electrically connected to the controller of the water purifier, or the exhaust valve 566 may be a pressure valve. The exhaust check valve 565 may prevent wastewater from flowing back into the heating system 200.

[0133] When hot water is needed, the exhaust valve 566 is closed, and the heating system 200 is now in a closed state. The water pressure of the water pump 510 can push the hot water out from the water outlet 222 from bottom to top.

[0134] When air and pressure relief are required or when stale water needs to be drained, the exhaust valve 566 is opened, and the water pressure of the water pump 510 can push the hot water out of the drain from bottom to top.

[0135] like Figure 1-Figure 6 As shown, the water purifier according to the third embodiment of the present invention includes: a filtering system 100 , a heating system 200 and a water pump 510 .

[0136] The filtration system 100 has a raw water inlet 101 and a purified water outlet 105. The raw water inlet 101 can be directly or indirectly connected to a raw water pipe, such as a tap water pipe. Raw water to be filtered flows into the filtration system 100 from the raw water inlet 101, and purified water flows out from the purified water outlet 105 after being filtered.

[0137] The heating system 200 has a water inlet 221, a water outlet 222 and an exhaust port 223. The water inlet 221 of the heating system 200 is connected to the purified water outlet 105 of the filtering system 100, and the water outlet 222 of the heating system 200 is connected to the first water supply port of the water purifier.

[0138] The exhaust port 223 of the heating system 200 is connected to an exhaust valve 566 .

[0139] When hot water is needed, the exhaust valve 566 is closed, and the heating system 200 is in a closed state. The water pressure of the water pump 510 can push the hot water from the water outlet 222 from bottom to top. The exhaust valve 566 can prevent the outside air from entering the heating system 200 and causing secondary pollution.

[0140] When air and pressure relief are required or when stale water needs to be drained, the exhaust valve 566 is opened, and the water pressure of the water pump 510 can push the hot water out of the drain from bottom to top.

[0141] The exhaust port 223 of the heating system 200 is disposed at a position higher than the water outlet 222 of the heating system 200 .

[0142] In this way, the pressure at the exhaust port 223 is lower than the pressure at the water outlet 222, which can prevent the exhaust valve 566 from opening accidentally, and the steam gathers at the top of the heating system 200. The water outlet 222 is set at a position lower than the exhaust port 223, which can prevent steam from being discharged from the water outlet 222 and splashing the user. The exhaust port 223 is set at the top to facilitate exhaust.

[0143] The water pump 510 is connected to the filtration system 100, and the water pump 510 is arranged upstream of the clean water outlet 105 of the filtration system 100. The water pump 510 is used to drive water to flow from the raw water inlet 101 of the filtration system 100 to the clean water outlet 105 of the filtration system 100, and the water pump 510 is used to drive water to be discharged from the water outlet 222 of the heating system 200.

[0144] In other words, in one of the working modes of the water purifier, raw water flows into the filtration system 100 from the raw water inlet 101 of the filtration system 100, and is driven by the water pump 510. After filtration, purified water flows out from the purified water outlet 105 of the filtration system 100. The purified water flowing out from the purified water outlet 105 of the filtration system 100 flows into the heating system 200 from the water inlet 221 of the heating system 200. After heating, driven by the water pump 510, the purified water flows into the first water supply port of the water purifier from the water outlet 222 of the heating system 200, thereby supplying hot water.

[0145] like Figure 1 As shown, a water inlet 221 is provided at the lower part of the heating system 200, and a water outlet 222 is provided at the upper part of the heating system 200. In other words, the purified water obtained after filtration flows into the heating system 200 from the lower part of the heating system 200 to be heated, and when hot water is needed, the hot water flows out from the water outlet 222 at the upper part of the heating system 200 under the action of the water pump 510.

[0146] It can be understood that after the pure water entering the heating system 200 is heated, the density of the hot water is relatively small and it floats, while the density of the cold water is relatively large and it sinks.

[0147] In addition to driving raw water to flow from the raw water inlet 601 to the clean water outlet 105 for filtration, the water pump 510 can also drive hot water to be discharged from the water outlet 222 of the heating system 200 .

[0148] In other words, the water pump 510 is both a driving pump for the filtering system 100 and a driving pump for the heating system 200. The hot water in the embodiment of the present invention is not pumped out from the heating system 200 by designing an independent water pump, but by forming a water pressure difference between the water inlet 221 and the water outlet 222 of the heating system 200 through the water pump 510 shared with the filtering system 100, and the upper hot water is pushed out to the first water supply port of the water purifier through the water pressure difference. In this way, the introduction of outside air into the water path of the water purifier can be avoided to prevent secondary pollution.

[0149] The water purifier according to the embodiment of the present invention integrates water purification and heating functions. By setting the water inlet 221 at the lower part of the heating system 200, setting the water outlet 222 at the upper part of the heating system 200, and setting the exhaust port 223 with a drain valve at a higher position, a closed heating system 200 can be formed. Combined with the push-type water outlet method of the water pump 510, it can prevent external air from being introduced into the water channel of the water purifier, thereby preventing secondary pollution.

[0150] In some embodiments, Figure 1As shown, the water purifier of the embodiment of the present invention may include an exhaust check valve 565, which is unidirectional from the exhaust port 223 of the heating system 200 to the wastewater outlet 602 of the water purifier. The exhaust check valve 565 can prevent wastewater from flowing back into the heating system 200.

[0151] The exhaust check valve 565 may be disposed between the exhaust valve 566 and the exhaust port 223 , or the exhaust valve 566 may be disposed between the exhaust check valve 565 and the exhaust port 223 .

[0152] In some embodiments, Figure 1 As shown, the water purifier may further include: a water return pipe 540 , which is connected between the purified water outlet 105 and the inlet of the water pump 510 .

[0153] When the water purifier is just turned on and the water pump 510 is working, the pure water at the clean water outlet 105 can be sucked back into the water pump 510 through the return pipe 540. Since the water pump 510 is arranged upstream of the clean water outlet 105 of the filtration system 100, the pure water sucked in can enter the filtration system 100 again for at least one level of filtration.

[0154] In other words, when the return pipe 540 is connected, the first cup of water with poor quality can be prevented from flowing out, and the quality of the water introduced into the filter system 100 is equivalent to enhancing the quality of the purified water at the purified water outlet 105 of the filter system 100. In particular, for the first cup of water, the quality of the first cup of water can be greatly improved by setting the return pipe 540.

[0155] In some embodiments, Figure 1 As shown, the return pipe 540 is connected to a position close to the second water supply port of the water purifier. Fig.17 In the water outlet waterway plate 900 shown, the second interface 921d of the first water pipe 921 is arranged near the first outlet 921b of the first water pipe 921. In this way, in the reflux fresh water mode, the pure water retained in the pipeline can be pumped to the inlet of the water pump 510 as much as possible.

[0156] In some embodiments, Figure 1 As shown, the return pipe 540 is provided with a return control valve 564, which is used to control the conduction state of the return pipe 540. The return control valve 564 can be a solenoid valve, and the return control valve 564 can be electrically connected to the controller of the water purifier. The water purifier is configured to open the return control valve 564 and continue for a preset time each time the water purifier is turned on. The preset time can be 5s-25s, such as 10s.

[0157] In some embodiments, Figure 1As shown, the return pipe 540 is provided with a return check valve 563 and a return control valve 564. The return check valve 563 is unidirectional from the clean water outlet 105 to the inlet of the water pump 510. The return control valve 564 is used to control the conduction state of the return pipe 540. The return control valve 564 can be a solenoid valve. The return check valve 563 can prevent the water that has not been completely filtered from the return pipe 540 from directly flowing into the clean water outlet 105 or the first water supply port.

[0158] The water purifier has a fresh water return mode, in which the water pump 510 and the return water control valve 564 are turned on. The water purifier is configured to start the fresh water return mode each time the water purifier is powered on, and the mode lasts for a preset time, which may be 5s-25s, such as 10s.

[0159] like Figure 1-Figure 12 As shown, the water purifier according to the fourth embodiment of the present invention includes: a first bracket 310 , a filtering system 100 , a second bracket 320 and a heating system 200 .

[0160] The filter system 100 is installed on the first bracket 310 . The first bracket 310 defines an installation space for installing the filter system 100 , and the first bracket 310 provides a supporting framework for the filter system 100 .

[0161] The filtration system 100 has a raw water inlet 101 and a purified water outlet 105. The raw water inlet 101 can be directly or indirectly connected to a raw water pipe, such as a tap water pipe. Raw water to be filtered flows into the filtration system 100 from the raw water inlet 101, and purified water flows out from the purified water outlet 105 after being filtered.

[0162] The heating system 200 is installed on the second bracket 320 . The second bracket 320 defines an installation space for installing the heating system 200 , and the second bracket 320 provides a supporting framework for the heating system 200 .

[0163] The heating system 200 has a water inlet 221 and a water outlet 222. The water inlet 221 of the heating system 200 is connected to the purified water outlet 105 of the filtering system 100, and the water outlet 222 of the heating system 200 is connected to the first water supply port of the water purifier.

[0164] The second bracket 320 is detachably connected to the first bracket 310. For example, the second bracket 320 and the first bracket 310 may be connected via a threaded connector, or via a clamping structure, or via a magnetic attraction structure.

[0165] In this way, the structural design of the water purifier is simple, and multiple different types of water purifiers can share the first bracket 310 and the filtration system 100. For example, for different types of water purifiers, only the second bracket 320 and the corresponding heating system 200 can be redesigned; it can even be achieved that multiple different types of water purifiers share the first bracket 310, the filtration system 100 and the second bracket 320. For example, for different types of water purifiers, only the corresponding heating system 200 can be redesigned.

[0166] In the related art, when designing a multifunctional water purifier, it is necessary to redesign the overall bracket for each type of multifunctional water purifier. For example, for a water purifier with a heating function and a water purifier with a tea brewing function, it is necessary to rearrange the structure and design the bracket separately, which makes the development cycle of the two product lines long and the mold investment cost high.

[0167] Since the water purifier of the embodiment of the present invention has its own brackets designed separately for the filtering system 100 and the heating system 200, when facing different types of water purifiers, the design related to the filtering system 100 can be retained to the greatest extent to achieve module sharing.

[0168] According to the water purifier of the embodiment of the present invention, by separately designing detachable connecting brackets for the filtering system 100 and the heating system 200, the development cost can be reduced and the development cycle can be shortened.

[0169] In some embodiments, Figure 6 , Figure 7 , Figure 8 and Fig.11 As shown, one of the second bracket 320 and the first bracket 310 is provided with a sleeve 324 , and the other of the second bracket 320 and the first bracket 310 is provided with a positioning column 314 , and the positioning column 314 extends into the sleeve 324 .

[0170] The axial direction of the sleeve 324 and the positioning column 314 is direction A in the figure. When the first bracket 310 and the second bracket 320 are aligned, the sleeve 324 and the positioning column 314 are opposite. The positioning column 314 is inserted into the sleeve 324 to achieve the positioning assembly of the first bracket 310 and the second bracket 320.

[0171] There are multiple sleeves 324 and positioning posts 314 in one-to-one correspondence, and the multiple sleeves 324 and the multiple positioning posts 314 are distributed at the top corners and the middle area of ​​the second bracket 320 and the first bracket 310. Figure 6 , Figure 7 , Figure 8 and Fig.11In the illustrated embodiment, five positioning posts 314 are distributed at the four vertices of the first bracket 310 and the middle edge in direction B, and five sleeves 324 are distributed at the four vertices of the second bracket 320 and the middle edge in direction B. In this way, the first bracket 310 and the second bracket 320 are accurately positioned at all locations and are not prone to relative deviation.

[0172] The first bracket 310 and the second bracket 320 can be connected by a threaded connector, and the positioning column 314 can have an internal threaded hole, such as Figure 5 As shown, after the positioning column 314 is inserted into the sleeve 324, the first bracket 310 and the second bracket 320 can be fixedly connected by tightening the screw in the internal threaded hole.

[0173] like Figure 1-Figure 6 As shown, the water purifier according to the fifth embodiment of the present invention comprises: a filtering system 100, a heating system 200, a water pump 510 and a housing.

[0174] The filtration system 100 has a raw water inlet 101 and a purified water outlet 105. The raw water inlet 101 can be directly or indirectly connected to a raw water pipe, such as a tap water pipe. Raw water to be filtered flows into the filtration system 100 from the raw water inlet 101, and purified water flows out from the purified water outlet 105 after being filtered.

[0175] The heating system 200 has a water inlet 221 and a water outlet 222. The water inlet 221 of the heating system 200 is connected to the purified water outlet 105 of the filtering system 100, and the water outlet 222 of the heating system 200 is connected to the first water supply port of the water purifier. The heating system 200 is used to heat water flowing through the heating system 200.

[0176] The water pump 510 is connected to the filtration system 100, and the water pump 510 is arranged upstream of the clean water outlet 105 of the filtration system 100. The water pump 510 is used to drive water to flow from the raw water inlet 101 of the filtration system 100 to the clean water outlet 105 of the filtration system 100, and the water pump 510 is used to drive water to be discharged from the water outlet 222 of the heating system 200.

[0177] In other words, in one of the working modes of the water purifier, raw water flows into the filtration system 100 from the raw water inlet 101 of the filtration system 100, and is driven by the water pump 510. After filtration, purified water flows out from the purified water outlet 105 of the filtration system 100. The purified water flowing out from the purified water outlet 105 of the filtration system 100 flows into the heating system 200 from the water inlet 221 of the heating system 200. After heating, driven by the water pump 510, the purified water flows into the first water supply port of the water purifier from the water outlet 222 of the heating system 200, thereby supplying hot water.

[0178] like Figure 1As shown, in some embodiments, a water inlet 221 is provided at the lower part of the heating system 200, and a water outlet 222 is provided at the upper part of the heating system 200. In other words, the purified water obtained after filtration flows into the heating system 200 from the lower part of the heating system 200 to be heated, and when hot water is needed, the hot water flows out from the water outlet 222 at the upper part of the heating system 200 under the action of the water pump 510.

[0179] It can be understood that after the pure water entering the heating system 200 is heated, the density of the hot water is relatively small and it floats, while the density of the cold water is relatively large and it sinks.

[0180] In addition to driving raw water to flow from the raw water inlet 601 to the clean water outlet 105 for filtration, the water pump 510 can also drive hot water to be discharged from the water outlet 222 of the heating system 200 .

[0181] In other words, the water pump 510 is both a driving pump for the filtering system 100 and a driving pump for the heating system 200. The hot water in the embodiment of the present invention is not pumped out from the heating system 200 by designing an independent water pump, but by forming a water pressure difference between the water inlet 221 and the water outlet 222 of the heating system 200 through the water pump 510 shared with the filtering system 100, and the upper hot water is pushed out to the first water supply port of the water purifier through the water pressure difference. In this way, the introduction of outside air into the water path of the water purifier can be avoided to prevent secondary pollution.

[0182] like Figure 2 and Figure 3 As shown, the filter system 100 , the water pump 510 and the heating system 200 are disposed in a housing, and the housing defines a receiving space for installing the filter system 100 , the water pump 510 and the heating system 200 .

[0183] like Figure 2 and Figure 3 As shown, the housing may be in a rectangular shape, the length direction of the housing may be a first direction, i.e., direction A in the figure; the height direction of the housing may be a second direction, i.e., direction B in the figure; and the width direction of the housing may be a third direction, i.e., direction C in the figure. The first direction, the second direction, and the third direction are perpendicular to each other.

[0184] like Figure 4-Figure 6 As shown, the filter system 100, the water pump 510 and the heating system 200 are arranged side by side along a first direction of the housing, and the length directions of the filter system 100, the water pump 510 and the heating system 200 are along a second direction of the housing.

[0185] In this way, the arrangement of the filtering system 100, the water pump 510 and the heating system 200 is compact and the space utilization rate is high, so that the water purifier occupies a small space and is easy to be arranged in a smaller space, such as in a cabinet.

[0186] The water purifier according to the embodiment of the present invention integrates water purification and heating functions. The push-type water outlet of the water pump 510 can prevent external air from being introduced into the water channel of the water purifier to prevent secondary pollution. The parallel arrangement of the filtration system 100, the water pump 510 and the heating system 200 has a compact layout and high space utilization.

[0187] In some embodiments, Figure 5 and Figure 6 As shown, the water pump 510 is disposed between the filtering system 100 and the heating system 200 .

[0188] It can be understood that in this embodiment, for the more expensive water pump 510, the filtration system 100 and the heating system 200 can both protect the water pump 510, and the water pump 510 is located between the filtration system 100 and the heating system 200, which is equivalent to being located in the middle area of ​​the entire water purifier. The noise from the operation of the water pump 510 can be effectively isolated by utilizing the blocking effect of other peripheral structures.

[0189] In some embodiments, Figure 6 and Figure 8 As shown, the water purifier further includes: a filter waterway plate 110, each water outlet of the filter system 100 and the water pump 510 is connected to the filter waterway plate 110, the water pump 510 is connected to the filter system 100 through the filter waterway plate 110, and the filter system 100 is connected to the heating system 200 and the external waterway through the filter waterway plate 110. In this way, there is no need to set too many pipelines on the filter system 100 side, which facilitates the pipeline layout.

[0190] The filter waterway plate 110 is located between the filter system 100 and the heating system 200. In this way, the filter system 100 and the heating system 200 can be fully utilized to protect the filter waterway plate 110, and prevent the filter waterway plate 110 from being damaged by impact and causing water leakage.

[0191] In some embodiments, Figure 6 and Figure 8 As shown, the filter waterway plate 110 and the water pump 510 are arranged side by side along the second direction, and the filter waterway plate 110 is installed at one end of the length direction of the water pump 510. The filter waterway plate 110 and the water pump 510 are arranged along direction B. In this way, the space between the filter system 100 and the heating system 200 is fully utilized, and the structure of the entire water purifier is compact.

[0192] In some embodiments, Figure 8As shown, the water inlets of the filter system 100 are arranged side by side along the third direction of the housing, and the water inlets of the filter system 100 are arranged opposite to the filter waterway plate 110 along the second direction. In this way, during assembly, the filter system 100 and the filter waterway plate 110 can be assembled by docking the water inlets of the filter system 100 with the filter waterway plate 110 along the second direction, which is simple and error-prone.

[0193] In some embodiments, Figure 2 As shown, an opening is provided at one end of the housing in the second direction, and the opening is arranged opposite to the filter system 100, and the opening is used to disassemble the filter system 100. In actual use, the filter element of the filter system 100 can be removed from the opening by disassembling the pressure rod 712, so as to facilitate the replacement of the filter element.

[0194] In some embodiments, Figure 6 and Fig.11 As shown, the water purifier may further include: a water outlet waterway plate 900, each water outlet of the heating system 200 is connected to the water outlet waterway plate 900, and the water outlet waterway plate 900 and the heating system 200 are arranged opposite to each other along the second direction.

[0195] In this way, the number of pipelines can be reduced during assembly, and the water outlet waterway plate 900 and the heating system 200 can be arranged opposite to each other along the second direction to save space.

[0196] like Figure 1-Figure 6 As shown, the water purifier according to the sixth embodiment of the present invention comprises: a filtering module and a heating module.

[0197] The filter module has a raw water inlet 101 and a purified water outlet 105. The raw water inlet 101 can be directly or indirectly connected to a raw water pipe, such as a tap water pipe. Raw water to be filtered flows into the filter system 100 from the raw water inlet 101, and purified water flows out from the purified water outlet 105 after being filtered.

[0198] like Fig.11 As shown, the heating module includes: a second bracket 320 , a heating system 200 and a protective cover 400 .

[0199] Among them, the second bracket 320 defines an installation cavity 323 with an open end, and the heating system 200 is installed in the installation cavity 323. For example, the installation cavity 323 can be a rectangular parallelepiped, and one side of the installation cavity 323 is open to facilitate the installation of the heating system 200 into the installation cavity 323.

[0200] The connection terminal 231 of the heating system 200 faces the open end, the protective cover 400 is connected to the second bracket 320, the protective cover 400 covers the open end, and the protective cover 400 can be made of flame retardant material, such as nylon + glass fiber or 5VA grade ABS (a terpolymer of three monomers of acrylonitrile (A), butadiene (B), and styrene (S)).

[0201] It should be noted that the heating system 200 is an electric heating type, and the connection terminal 231 of the heating system 200 is the heat risk concentration area of ​​the heating system 200. By designing a heating module with the above-mentioned structural form, when the heating system 200 catches fire, the fire can be prevented from spreading outward, thereby improving product reliability and reducing the risk of fire.

[0202] like Fig.11 and Fig.12 As shown, the protective cover 400 includes a cover plate 410 and a water baffle 420. The water baffle 420 protrudes toward the installation cavity 323 and extends into the installation cavity 323. The water baffle 420 is used to prevent external water from flowing into the installation cavity 323. For example, when a pipeline bursts, the water baffle 420 can prevent water from directly flowing into the installation cavity 323, thereby preventing the wiring terminal 231 of the heating system 200 from short-circuiting.

[0203] The second bracket 320 is provided with a first connection structure 321 , and the cover plate 410 is provided with a second connection structure 411 . The second connection structure 411 is connected to the first connection structure 321 so that the cover plate 410 covers the open end, and the second connection structure 411 is provided outside the water retaining plate 420 .

[0204] Since the connection structure is arranged outside the water retaining plate 420, water can be prevented from penetrating into the installation cavity 323 from the connection structure.

[0205] According to the heating module of the embodiment of the present invention, by providing a protective cover 400 on the side of the terminal 231 of the heating system 200, when a fire occurs in the heating system 200, the fire can be prevented from spreading outward. By providing a water baffle 420 and providing a connecting structure on the outside of the water baffle 420, water can be prevented from seeping into the installation cavity 323 from the connection. The product has high reliability and is not prone to fire.

[0206] The second bracket 320 is connected to the filter module, and the heating system 200 has a water inlet 221 and a water outlet 222. The water inlet 221 of the heating system 200 is connected to the purified water outlet 105 of the filter module, and the water outlet 222 of the heating system 200 is connected to the first water supply port of the water purifier. The heating system 200 is used to heat water flowing through the heating system 200.

[0207] The water purifier according to the embodiment of the present invention integrates water purification and heating functions, and is provided with structures such as a protective cover 400 and a water baffle 420, which can effectively reduce the short circuit risk of the water purifier and improve the thermal protection performance.

[0208] In some embodiments, Fig. 9 As shown, the filter module may include a first bracket 310 and a filter system 100, the filter system 100 is mounted on the first bracket 310, and the filter system 100 has a raw water inlet 101 and a clean water outlet 105, the raw water inlet 101 may be directly or indirectly connected to a raw water pipe, for example, the raw water pipe may be a tap water pipe. The raw water to be filtered flows into the filter system 100 from the raw water inlet 101, and after being filtered, the clean water flows out from the clean water outlet 105.

[0209] The second bracket 320 is detachably connected to the first bracket 310 .

[0210] That is to say, the water purifier of the embodiment of the present invention has separately designed brackets for the filtration system 100 and the heating system 200. In this way, when facing water purifiers of different heating models, the design related to the filtration system 100 can be retained to the greatest extent, and the modules can be shared, which can reduce development costs and shorten the development cycle.

[0211] The heating module according to the embodiment of the present invention will be described below.

[0212] In some embodiments, Fig.11 As shown, the open end of the second bracket 320 is provided with a protruding first plate 325 and a second plate 326, the water retaining plate 420 is located on the inner side of the first plate 325, and the second plate 326 is located on the outer side of the first plate 325, and a wiring groove 327 is defined between the first plate 325 and the second plate 326, and the cover plate 410 covers the wiring groove 327.

[0213] It can be understood that the first plate 325 is used to cooperate with the water baffle 420, and the second plate 326 is located on the outside of the first plate 325. The second plate 326 is separated from the first plate 325 to form a wiring groove 327 between the second plate 326 and the first plate 325. The cables led out from the heating system 200 can be arranged along the wiring groove 327 after being led out of the installation cavity 323, and the cover plate 410 extends outward relative to the water baffle 420 to cover the wiring groove 327, so that the structure of the heating module is neater.

[0214] In some embodiments, Fig.12 As shown, a protruding guide rib 425 is provided on the outer side of the water retaining plate 420 . The guide rib 425 extends in a direction away from the cover plate 410 , and its height gradually decreases.

[0215] The height of the guide rib 425 gradually decreases from close to the cover plate 410 to far away from the cover plate 410. In this way, when the protective cover 400 is installed on the second bracket 320, the guide rib 425 is gradually squeezed, so that the protective cover 400 and the second bracket 320 form an interference fit structure. The gradual height of the guide rib 425 is conducive to assembly.

[0216] The water retaining plate 420 may be a quadrilateral enclosing structure (each side may be designed with a notch or be cut off as required), each side may be provided with a guide rib 425 , and some sides may be provided with multiple guide ribs 425 .

[0217] In some embodiments, Fig.12 As shown, at least one section of the water retaining plate 420 includes a main section 421 and an avoidance section 422. The avoidance section 422 is recessed toward the middle of the protective cover 400 relative to the main section 421. The main section 421 and the avoidance section 422 are connected by a connecting plate. The second connecting structure 411 is arranged opposite to the avoidance section 422.

[0218] It should be noted that the avoidance section 422 recessed toward the middle can form a groove on the circumferential outer side of the water baffle 420, and the groove can be used to accommodate the second connecting structure 411. In this way, when the volume of the accommodating cavity of the second bracket 320 is constant, there is no need to consider the installation space of the second connecting structure 411 outside the water baffle 420, so the protective cover 400 can be made as small as possible, and the structure of the entire heating module is more compact.

[0219] In some embodiments, Fig.12 As shown, a protruding water retaining rib 423 is provided on the outer side of the main body section 421. The water retaining rib 423 is used to further prevent water from flowing from the main body section 421 into the installation cavity 323.

[0220] like Fig.12 As shown, the main body section 421 is provided with a wire opening 424, and a portion of the water retaining rib 423 extends along the edge of the wire opening 424. The wire opening 424 can be arranged at one end of the main body section 421 away from the cover plate 410, and is in the form of a notch structure. The wire opening 424 is used to lead out the cables of the heating system 200.

[0221] In some embodiments, Fig.12 As shown, the outer side surface of the main section 421 is provided with a protruding guide rib 425, which extends in a direction away from the cover plate 410 and gradually decreases in height. Both ends of the water retaining rib 423 are respectively connected to two guide ribs 425 spaced apart from each other.

[0222] The height of the guide rib 425 gradually decreases from close to the cover plate 410 to far away from the cover plate 410. In this way, when the protective cover 400 is installed on the second bracket 320, the guide rib 425 is gradually compressed, so that the protective cover 400 and the second bracket 320 form an interference fit structure. The gradual height of the guide rib 425 is conducive to assembly.

[0223] In some embodiments, Fig.12 As shown, the second connection structure 411 is a buckle, and correspondingly, the first connection structure 321 includes a bayonet, and the buckle can be inserted into the bayonet to form a snap connection.

[0224] like Fig.12 As shown, a notch 412 is provided between the second connection structure 411 and the connection plate, and a reinforcing rib is provided on the side of the second connection structure 411 away from the connection plate. In this way, the second connection structure 411 has good elasticity and sufficient strength and is not easy to break.

[0225] Of course, the first connection structure 321 and the second connection structure 411 may be threaded connectors, which will not be described in detail herein.

[0226] In some embodiments, the five walls of the installation cavity 323 surround the heating system 200, which can play a certain role in heat preservation. The second bracket 320 can be made of fireproof and heat-insulating materials, such as nylon + glass fiber or 5VA grade ABS (terpolymer of acrylonitrile (A), butadiene (B), and styrene (S)).

[0227] like Figure 1 , Figure 13-Figure 16 As shown, the water purifier according to the seventh embodiment of the present invention includes: a filtering system 100 and a heating system 200 .

[0228] The filtration system 100 has a raw water inlet 101 and a purified water outlet 105. The raw water inlet 101 can be directly or indirectly connected to a raw water pipe, such as a tap water pipe. Raw water to be filtered flows into the filtration system 100 from the raw water inlet 101, and purified water flows out from the purified water outlet 105 after being filtered.

[0229] The heating system 200 has a water inlet 221 and a water outlet 222. The water inlet 221 of the heating system 200 is connected to the purified water outlet 105 of the filtering system 100, and the water outlet 222 of the heating system 200 is connected to the first water supply port of the water purifier. The heating system 200 is used to heat water flowing through the heating system 200.

[0230] Reference below Figure 13-Figure 16 A heating system 200 according to an embodiment of the present invention is described.

[0231] like Fig.14As shown, the heating system 200 of the embodiment of the present invention includes: a tank body 210 and a heating pipe 230 .

[0232] The heating pipe 230 is installed in the tank body 210 . The heating pipe 230 may be an electric heating type. When the heating pipe 230 is powered on, the water in the tank body 210 may be heated.

[0233] like Fig.15 As shown, when the heating system 200 is placed vertically, the bottom surface 211 of the tank 210 faces downward. Fig.16 As shown, when the heating system 200 is placed horizontally, the first side 212 of the tank 210 faces downward.

[0234] The tank body 210 has a water inlet 221 and a water outlet 222. The distance between the water outlet 222 and the bottom surface 211 is greater than the distance between the water inlet 221 and the bottom surface 211. The distance between the water outlet 222 and the first side surface 212 is greater than the distance between the water inlet 221 and the first side surface 212. The first side surface 212 is adjacent to the bottom surface 211.

[0235] In this way, when placed in a vertical position, the water outlet 222 is located above the water inlet 221 , and when placed in a horizontal position, the water outlet 222 is still located above the water inlet 221 .

[0236] It can be understood that after the water entering the heating system 200 is heated, the density of the hot water is relatively small and it floats, while the density of the cold water is relatively large and it sinks.

[0237] In other words, the heating system 200 of the embodiment of the present invention can ensure that the outlet water temperature is high enough whether it is placed vertically or horizontally. In this way, the heating system 200 can select a suitable placement direction according to the specific installation environment, and has a wider range of applications.

[0238] According to the heating system 200 of the embodiment of the present invention, by designing the distances between the water inlet and outlet and the bottom surface 211 and the first side surface 212, the heating system 200 can ensure the outlet water temperature whether it is placed vertically or horizontally, and has a wider range of applications.

[0239] Figure 2 This is a schematic diagram of the structure of the water purifier in an embodiment of the present invention when placed vertically. Figure 3 This is a schematic diagram of the structure of the water purifier of an embodiment of the present invention when placed horizontally. Since the water purifier adopts the heating system 200 of the above embodiment, the installation direction can be selected according to the actual installation environment, especially when the water purifier is installed in a narrow space under a cabinet, the adaptability is stronger.

[0240] The water purifier according to the embodiment of the present invention integrates water purification and heating functions, and can be installed vertically or horizontally according to the actual installation environment without affecting the outlet water temperature.

[0241] In some embodiments, Figure 1 As shown, the water purifier may also include a water pump 510, which is connected to the filtration system 100 and is arranged upstream of the clean water outlet 105 of the filtration system 100. The water pump 510 is used to drive water from the raw water inlet 101 of the filtration system 100 to the clean water outlet 105 of the filtration system 100, and the water pump 510 is used to drive water to be discharged from the water outlet 222 of the heating system 200.

[0242] In other words, in one of the working modes of the water purifier, raw water flows into the filtration system 100 from the raw water inlet 101 of the filtration system 100, and is driven by the water pump 510. After filtration, purified water flows out from the purified water outlet 105 of the filtration system 100. The purified water flowing out from the purified water outlet 105 of the filtration system 100 flows into the heating system 200 from the water inlet 221 of the heating system 200. After heating, driven by the water pump 510, the purified water flows into the first water supply port of the water purifier from the water outlet 222 of the heating system 200, thereby supplying hot water.

[0243] like Figure 1 As shown, a water inlet 221 is provided at the lower part of the heating system 200, and a water outlet 222 is provided at the upper part of the heating system 200. In other words, the purified water obtained after filtration flows into the heating system 200 from the lower part of the heating system 200 to be heated, and when hot water is needed, the hot water flows out from the water outlet 222 at the upper part of the heating system 200 under the action of the water pump 510.

[0244] It can be understood that after the pure water entering the heating system 200 is heated, the density of the hot water is relatively small and it floats, while the density of the cold water is relatively large and it sinks.

[0245] In addition to driving raw water to flow from the raw water inlet 601 to the clean water outlet 105 for filtration, the water pump 510 can also drive hot water to be discharged from the water outlet 222 of the heating system 200 .

[0246] In other words, the water pump 510 is both a driving pump for the filtering system 100 and a driving pump for the heating system 200. The hot water in the embodiment of the present invention is not pumped out from the heating system 200 by designing an independent water pump, but by forming a water pressure difference between the water inlet 221 and the water outlet 222 of the heating system 200 through the water pump 510 shared with the filtering system 100, and the upper hot water is pushed out to the first water supply port of the water purifier through the water pressure difference. In this way, the introduction of outside air into the water path of the water purifier can be avoided to prevent secondary pollution.

[0247] like Figure 1As shown, the return pipe 540 is connected between the clean water outlet 105 and the inlet of the water pump 510. When the water purifier is just turned on, when the water pump 510 is working, the pure water at the clean water outlet 105 can be sucked into the water pump 510 through the return pipe 540. Since the water pump 510 is arranged upstream of the clean water outlet 105 of the filter system 100, the pure water sucked in can enter the filter system 100 again for at least one level of filtration.

[0248] In other words, when the return pipe 540 is connected, the first cup of water with poor quality can be prevented from flowing out, and the quality of the water introduced into the filter system 100 is equivalent to enhancing the quality of the purified water at the purified water outlet 105 of the filter system 100. In particular, for the first cup of water, the quality of the first cup of water can be greatly improved by setting the return pipe 540.

[0249] The water purifier according to the embodiment of the present invention integrates water purification and heating functions. By setting the water inlet 221 at the lower part of the heating system 200, setting the water outlet 222 at the upper part of the heating system 200, and combining the push-type water outlet method of the water pump 510, it is possible to avoid the introduction of external air into the water channel of the water purifier to prevent secondary pollution. By setting the return pipe 540, the quality of the first cup of water can be greatly improved.

[0250] The heating system 200 according to the embodiment of the present invention will be described below.

[0251] In some embodiments, Fig.14 As shown, the water inlet 221 and the water outlet 222 can be arranged at diagonal positions of the front surface of the heating system, respectively, and the front surface is adjacent to the first side surface 212 and the bottom surface 211. In this way, the water inlet 221 is close to the bottom surface 211, and the water outlet 222 is close to the top surface. After the water flows into the tank body 210 from the water inlet 221, it can be fully heated, and the temperature of the water flowing out of the water outlet 222 is high enough and is not easily affected by the water flow of the water inlet 221.

[0252] Of course, the water inlet 221 and the water outlet 222 can also be arranged at other positions, for example, the water inlet 221 can be arranged at the lower left corner of the front surface, and the water outlet 222 can be arranged at one of the top corners of the top surface, which is close to the upper right corner of the front surface.

[0253] In some embodiments, Figure 13-Figure 16 As shown, the heating system 200 includes a water inlet pipe 226 and a water outlet pipe 227. The water inlet pipe 226 is inserted into the water inlet 221, and a portion of the water inlet pipe 226 protrudes from the outside of the tank body 210 to facilitate connection with other pipelines. The water outlet pipe 227 is inserted into the water outlet 222, and a portion of the water outlet pipe 227 protrudes from the outside of the tank body 210 to facilitate connection with other pipelines.

[0254] In some embodiments, Fig.14As shown, the tank body 210 has an exhaust port 223 , and the distance between the exhaust port 223 and the bottom surface 211 is greater than the distance between the water inlet 221 and the bottom surface 211 ; the distance between the exhaust port 223 and the first side surface 212 is greater than the distance between the water inlet 221 and the first side surface 212 .

[0255] like Fig.15 As shown, when the heating system 200 is placed vertically, the bottom surface 211 of the tank 210 faces downward. Fig.16 As shown, when the heating system 200 is placed horizontally, the first side 212 of the tank 210 faces downward.

[0256] In other words, when placed in a vertical position, the exhaust port 223 is located higher than the water inlet 221, which is convenient for the discharge of water vapor from above. When placed in a horizontal position, the exhaust port 223 is located higher than the water inlet 221, which is convenient for the discharge of water vapor from above.

[0257] In this way, the heating system 200 does not affect the exhaust when placed vertically or horizontally.

[0258] In some embodiments, Fig.14 As shown, the distance between the exhaust port 223 and the bottom surface 211 is greater than the distance between the water outlet 222 and the bottom surface 211 , and the distance between the exhaust port 223 and the first side surface 212 is greater than the distance between the water outlet 222 and the first side surface 212 .

[0259] In this way, the pressure at the exhaust port 223 is lower than the pressure at the water outlet 222, which can prevent the exhaust valve 566 at the exhaust port 223 from opening accidentally and causing steam to gather at the top of the heating system 200. Setting the water outlet 222 at a position lower than the exhaust port 223 can prevent steam from being discharged from the water outlet 222 and splashing the user. Setting the exhaust port 223 at the top is conducive to exhaust.

[0260] In some embodiments, Fig.14 As shown, the water inlet 221, the water outlet 222 and the exhaust port 223 are arranged on the same side of the tank body 210. This is convenient for connecting with other pipelines, and there is no need to leave installation space for other pipelines or valves on the non-open surface of the second bracket 320, which makes assembly more convenient.

[0261] In some embodiments, Fig.14As shown, the water inlet 221 and the water outlet 222 can be arranged at diagonal positions of the front surface of the heating system, respectively. The front surface is adjacent to the first side surface 212 and the bottom surface 211, and the exhaust port 223 is arranged near the water outlet 222 and is arranged closer to the upper right corner. In this way, the water inlet 221 is close to the bottom surface 211, and the water outlet 222 is close to the top surface. After the water flows into the tank body 210 from the water inlet 221, it can be fully heated. The temperature of the water flowing out of the water outlet 222 is high enough and is not easily affected by the water flow of the water inlet 221. The steam at the top of the tank body 210 can be smoothly discharged from the exhaust port 223.

[0262] Of course, the water inlet 221, the water outlet 222 and the exhaust port 223 can also be arranged at other positions. For example, the water inlet 221 can be arranged at the lower left corner of the front surface, and the water outlet 222 and the exhaust port 223 can be arranged at one of the top corners of the top surface, which is close to the upper right corner of the front surface, and the distance from the exhaust port 223 to the top corner is smaller than the distance from the water outlet 222 to the top corner.

[0263] In some embodiments, Figure 13-Figure 16 As shown, the heating system 200 includes an exhaust pipe 228, which is inserted into the exhaust port 223, and a portion of the exhaust pipe 228 protrudes from the outside of the tank body 210 to facilitate connection with other pipelines.

[0264] In some embodiments, Fig.14 As shown, the can body 210 includes: a can body 213, an upper end cover 214 and a lower end cover 215. The two ends of the can body 213 are open, the upper end cover 214 is installed at the upper end of the can body 213 and closes the upper end of the can body 213, and the lower end cover 215 is installed at the lower end of the can body 213 and closes the lower end of the can body 213. A sealing structure is provided at the connection between the upper end cover 214 and the can body 213, and a sealing structure is provided at the connection between the lower end cover 215 and the can body 213.

[0265] The water inlet 221 and the water outlet 222 are arranged diagonally on the tank body 213 , and an exhaust port 223 is arranged near the water outlet 222 . The distance to the nearest vertex of the exhaust port 223 is smaller than the distance from the water outlet 222 to the vertex.

[0266] In some embodiments, Fig.14 As shown, the water inlet 221 and the water outlet 222 are arranged on the same side of the tank body 213. This makes it easy to connect to other pipelines.

[0267] In some embodiments, Figure 13-Figure 16As shown, the tank body 213 is provided with a terminal avoidance hole 224, and the terminal 231 of the heating pipe 230 extends out of the tank body 210 from the terminal avoidance hole 224. The terminal avoidance hole 224, the water inlet 221 and the water outlet 222 are arranged on the same side of the tank body 213. In other words, after the tank body 210 is mounted on the second bracket 320, only the open end of the second bracket 320 needs to be used for wiring and pipe connection, which is convenient for assembly.

[0268] The heating tube 230 may have two wiring terminals 231 , and the tank body 213 is provided with two wiring terminal avoidance holes 224 , and the two wiring terminals 231 correspond to the two wiring terminal avoidance holes 224 one by one.

[0269] In some embodiments, Figure 13-Figure 16 As shown, the tank body 213 can be connected to the tank body assembly bracket 229, and the tank body assembly bracket 229 is used to fix the tank body 210 to the second bracket 320. The tank body assembly bracket 229 can be provided with a mounting hole, and the threaded connector passes through the mounting hole and is threadedly connected to the second bracket 320.

[0270] In some embodiments, Figure 13-Figure 16 As shown, the tank body 210 is provided with a temperature sensor installation hole 225, and the temperature sensor installation hole 225 is used to install a thermostat. The ratio of the distance from the temperature sensor installation hole 225 to the bottom surface 211 to the height of the tank body 210 when the heating system 200 is placed vertically is a1, and the ratio of the distance from the temperature sensor installation hole 225 to the first layer to the height of the tank body 210 when the heating system 200 is placed horizontally is a2, which satisfies: 0.5≤a1≤0.8, 0.5≤a2≤0.8. For example, a1=0.6, a2=0.6.

[0271] In this way, no matter whether the heating system 200 is placed vertically or horizontally, the temperature controller is basically located in the middle of the tank body 210, and the temperature measurement is more accurate.

[0272] like Figure 13-Figure 16 As shown, the tank body 210 may be installed with a thermostat fixing bracket 250, and the thermostat fixing bracket 250 is used to install the thermostat.

[0273] In some embodiments, Figure 13-Figure 16 As shown, the temperature sensor mounting hole 225 , the water inlet 221 and the water outlet 222 are arranged on the same side of the tank body 210 .

[0274] In other words, after the tank body 210 is installed on the second bracket 320, it is only necessary to connect the wiring and pipes at the open end of the second bracket 320, which is convenient for assembly.

[0275] In some embodiments, Figure 13-Figure 16As shown, the water inlet 221, the water outlet 222, the exhaust port 223, the terminal avoidance hole 224 and the temperature sensor installation hole 225 are all arranged on the same side of the tank body 210. In this way, after the tank body 210 is installed on the second bracket 320, only the wiring and pipe connection need to be carried out at the open end of the second bracket 320, which is convenient for assembly.

[0276] like Figure 1-Figure 6 As shown, the water purifier according to the eighth embodiment of the present invention comprises: a filtering system 100 , a heating system 200 and a water outlet waterway plate 900 .

[0277] The filter system 100 is connected to the heating system 200 through the water outlet waterway plate 900 , and the filter system 100 and the heating system 200 are connected to external pipelines through the water outlet waterway plate 900 .

[0278] The filtration system 100 has a raw water inlet 101 and a purified water outlet 105. The raw water inlet 101 is indirectly connected to a raw water pipe through a water outlet waterway plate 900. For example, the raw water pipe can be a tap water pipe. Raw water to be filtered flows into the filtration system 100 from the raw water inlet 101, and purified water flows out from the purified water outlet 105 after being filtered.

[0279] The heating system 200 is used to heat water flowing through the heating system 200. The heating system 200 has a water inlet 221 and a water outlet 222. The water inlet 221 of the heating system 200 is connected to the clean water outlet 105 of the filtering system 100 through the water outlet waterway plate 900, and the water outlet 222 of the heating system 200 is connected to the first water supply port of the water purifier through the water outlet waterway plate 900. The clean water outlet 105 of the filtering system 100 is connected to the second water supply port of the water purifier through the water outlet waterway plate 900. It can be understood that the first water supply port is used to supply hot water, and the second water supply port is used to supply normal temperature water.

[0280] Reference below Figure 17-Figure 20 The water outlet waterway plate 900 according to the embodiment of the present invention is described.

[0281] like Figure 17-Figure 20 As shown, the water outlet waterway plate 900 of the embodiment of the present invention includes: a substrate 910 and a plurality of water pipes.

[0282] The substrate 910 can be a flat plate or a concave-convex plate, and the water pipes are installed on the substrate 910. In other words, the substrate 910 is a carrier for multiple water pipes. The substrate 910 can also be provided with a connecting structure for connecting the water outlet waterway plate 900 with the second bracket 320, and the connecting structure can be a clip-on structure or a threaded connection structure.

[0283] Each water pipe has at least two interconnected water outlets, such as two water outlets can be formed at both ends of the water pipe, or one water outlet is formed at one end of the water pipe and another water outlet is opened on the surrounding wall of the water pipe; at least one water pipe has at least three interconnected water outlets, such as two water outlets can be formed at both ends of the water pipe, and one or more water outlets are opened on the surrounding wall of the water pipe.

[0284] A water pipe with two water outlets is mainly used to connect two pipelines, and a water pipe with three or more water outlets is mainly used to connect branch pipelines in multiple ways.

[0285] The water pipe with at least three interconnected water ports and another water pipe define an installation position for installing a valve. In other words, the inlet and outlet of the valve are respectively connected to the water ports of the two water pipes, so that the installation position formed on the water outlet waterway plate 900 can also realize the installation of the valve.

[0286] It can be understood that the multiple water pipes of the water outlet waterway plate 900 are formed into a whole through the substrate 910. By installing the substrate 910 in the water purifier, such as installing it on the second bracket 320, the various water pipes can be fixed, and the valve is installed on the water outlet waterway plate 900, and the interface is connected to the water outlet of the water outlet waterway plate 900, which can save the layout of the pipelines.

[0287] According to the water outlet waterway plate 900 of the embodiment of the present invention, the water pipes with multiple water outlets are integrated into a whole through the base plate 910, so that the overall assembly and installation of multiple pipelines can be realized, and the installation of valves and the connection of waterways are neater and simpler.

[0288] The water purifier according to the embodiment of the present invention integrates water purification and heating functions. By arranging the water outlet waterway plate 900 of the above-mentioned structural form in the water purifier, the pipes in the water purifier can be reduced, the difficulty of assembly can be reduced, incorrect assembly can be prevented, and the assembly efficiency can be improved.

[0289] In some embodiments, Figure 8 and Fig.10 As shown, the water purifier may further include: a filter waterway plate 110 , and the filter system 100 is connected to the water outlet waterway plate 900 via the filter waterway plate 110 .

[0290] In this way, the number of pipelines between the filter system 100 and the heating system 200 and the outside can be greatly reduced, thereby reducing the difficulty of assembly, preventing assembly errors, and improving assembly efficiency.

[0291] In some embodiments, Figure 1-Figure 8As shown, the water purifier may also include: a water pump 510, which is connected to the filtration system 100 and is arranged upstream of the clean water outlet 105 of the filtration system 100, and the water pump 510 is used to drive water from the raw water inlet 101 of the filtration system 100 to the clean water outlet 105 of the filtration system 100, and the water pump 510 is used to drive water to be discharged from the water outlet 222 of the heating system 200.

[0292] In other words, in one of the working modes of the water purifier, raw water flows into the filtration system 100 from the raw water inlet 101 of the filtration system 100, and is driven by the water pump 510. After filtration, purified water flows out from the purified water outlet 105 of the filtration system 100. The purified water flowing out from the purified water outlet 105 of the filtration system 100 flows into the heating system 200 from the water inlet 221 of the heating system 200. After heating, driven by the water pump 510, the purified water flows into the first water supply port of the water purifier from the water outlet 222 of the heating system 200, thereby supplying hot water.

[0293] like Figure 1 As shown, a water inlet 221 is provided at the lower part of the heating system 200, and a water outlet 222 is provided at the upper part of the heating system 200. In other words, the purified water obtained after filtration flows into the heating system 200 from the lower part of the heating system 200 to be heated, and when hot water is needed, the hot water flows out from the water outlet 222 at the upper part of the heating system 200 under the action of the water pump 510.

[0294] It can be understood that after the pure water entering the heating system 200 is heated, the density of the hot water is relatively small and it floats, while the density of the cold water is relatively large and it sinks.

[0295] In addition to driving raw water to flow from the raw water inlet 601 to the clean water outlet 105 for filtration, the water pump 510 can also drive hot water to be discharged from the water outlet 222 of the heating system 200 .

[0296] In other words, the water pump 510 is both a driving pump for the filtering system 100 and a driving pump for the heating system 200. The hot water in the embodiment of the present invention is not pumped out from the heating system 200 by designing an independent water pump, but by forming a water pressure difference between the water inlet 221 and the water outlet 222 of the heating system 200 through the water pump 510 shared with the filtering system 100, and the upper hot water is pushed out to the first water supply port of the water purifier through the water pressure difference. In this way, the introduction of outside air into the water path of the water purifier can be avoided to prevent secondary pollution.

[0297] The water purifier according to the embodiment of the present invention integrates water purification and heating functions. By setting the water inlet 221 at the lower part of the heating system 200, setting the water outlet 222 at the upper part of the heating system 200, and combining the push-type water outlet method of the water pump 510, it is possible to prevent external air from being introduced into the water channel of the water purifier, thereby preventing secondary pollution.

[0298] In some embodiments, the filtration system 100 is connected to the water pump 510 and the water outlet waterway plate 900 through the filtration waterway plate 110. For the specific structure of the filtration waterway plate 110, please refer to Fig.10 and description of other embodiments.

[0299] In some embodiments, Fig.17 As shown, the base plate 910 is provided with a mounting structure 911 for fixing the valve at the mounting position. In other words, the mounting structure 911 is provided near two water ports for connecting the valves, and after the inlet and outlet of the valve are connected to the two water ports respectively, the valve can be fixed through the mounting structure 911. The mounting structure 911 can be a connecting column with a threaded hole.

[0300] In some embodiments, Fig.17 and Fig.19 As shown, the multiple water pipes of the water outlet waterway plate 900 include: a first water pipe 921 , a second water pipe 922 , a third water pipe 923 and a fourth water pipe 924 .

[0301] The first water pipe 921 has a first inlet 921a, a first outlet 921b, a first interface 921c and a second interface 921d, and the first inlet 921a, the first outlet 921b, the first interface 921c and the second interface 921d are connected to each other.

[0302] The second water pipe 922 has a second inlet 922a and a second outlet 922b, and the second inlet 922a and the second outlet 922b are connected to each other.

[0303] The first interface 921c and the second inlet 922a define an installation position for installing a valve.

[0304] The third water pipe 923 has a third inlet 923a and a third outlet 923b, and the third inlet 923a and the third outlet 923b are connected to each other. The second outlet 922b and the third inlet 923a define an installation position for installing a valve.

[0305] The fourth water pipe 924 has a fourth inlet 924a and a fourth outlet 924b, and the fourth inlet 924a and the fourth outlet 924b are connected to each other. The second interface 921d and the fourth inlet 924a define an installation position for installing a valve.

[0306] When the outlet waterway plate 900 is installed in the water purifier, the first inlet 921a can be connected to the purified water outlet 105 of the filtration system 100. In the embodiment where the water purifier includes the filter waterway plate 110, the first inlet 921a can be connected to the twelfth port 125b of the filter waterway plate 110; the first outlet 921b can be connected to the second water supply port of the water purifier; Fig.18 and Fig.19 As shown, the first interface 921c is connected to the inlet of the clean water one-way valve 561, and the second inlet 922a is connected to the outlet of the clean water one-way valve 561; Fig.18 As shown, the second outlet 922b and the third inlet 923a are respectively connected to the inlet and outlet of the water purification control valve 562; the third outlet 923b is connected to the water inlet 221 of the heating system 200; Fig.18 As shown, the second interface 921d and the fourth inlet 924a are respectively connected to the inlet and outlet of the return water control valve 564; the fourth outlet 924b is connected to the inlet of the return water check valve 563.

[0307] Thus, in the water purifier, the pipe connections and valve installations on the first branch 520, the second branch 530 and the return pipe 540 are extremely simple and not prone to assembly errors. This structural form of the outlet waterway plate 900 helps to simplify the waterway layout of the water purifier.

[0308] In some embodiments, Fig.17 As shown, the first interface 921c and the second inlet 922a are arranged side by side and open in the same direction, which facilitates the installation of the water purification one-way valve 561.

[0309] In some embodiments, Fig.17 As shown, the second outlet 922b and the third inlet 923a are arranged side by side and open in the same direction, which facilitates the installation of the clean water control valve 562.

[0310] The second interface 921d and the fourth inlet 924a are arranged side by side and open in the same direction, so as to facilitate the installation of the return water check valve 563.

[0311] In the actual processing, Fig.17 As shown, the first interface 921c and the second inlet 922a are open toward the first edge of the substrate 910, the third outlet 923b is open toward the second edge of the substrate 910, and the fourth outlet 924b is open toward the third edge of the substrate 910; the first inlet 921a, the second interface 921d, the second outlet 922b, the third inlet 923a and the fourth inlet 924a are located on one side of the substrate 910; the third outlet 923b is located on the other side of the substrate 910.

[0312] In this way, the valves are basically installed on one side of the substrate 910, the water outlets used to connect to the external pipelines of the water purifier are relatively concentrated, the water outlets used to connect to the heating system 200 of the water purifier are relatively concentrated, and the water outlets used to connect to the filter water circuit plate 110 of the water purifier are relatively concentrated.

[0313] In some embodiments, Fig.17 As shown, the first water pipe 921, the second water pipe 922 and the fourth water pipe 924 are arranged in parallel; the first outlet 921b and the first interface 921c are respectively located at the two ends of the first water pipe 921, the first inlet 921a and the second interface 921d are led out from the peripheral wall of the first water pipe 921, and the second interface 921d is arranged near the first outlet 921b; the second inlet 922a is located at one end of the second water pipe 922, and the second outlet 922b is led out from the peripheral wall of the second water pipe 922; the third inlet 923a is led out from the peripheral wall of the third water pipe 923, and the third outlet 923b is located at one end of the third water pipe 923; the fourth outlet 924b is located at one end of the fourth water pipe 924, and the fourth inlet 924a is led out from the peripheral wall of the fourth water pipe 924. In this way, the water outlet waterway plate 900 has a simple structure and is easy to process while realizing the above-mentioned waterway connection relationship.

[0314] In some embodiments, Figure 17-Figure 20 As shown, the multiple water pipes of the water outlet waterway plate 900 include: a fifth water pipe 935 and a sixth water pipe 936 .

[0315] The fifth water pipe 935 has a fifth inlet 935a, a fifth outlet 935b and a fifth interface 935c, and the fifth inlet 935a, the fifth outlet 935b and the fifth interface 935c are connected to each other.

[0316] The sixth water pipe 936 has a sixth inlet 936a and a sixth outlet 936b, the sixth inlet 936a and the sixth outlet 936b are connected to each other, and the fifth interface 935c and the sixth inlet 936a define an installation position for installing a valve.

[0317] When the outlet waterway plate 900 is installed on the water purifier, the fifth inlet 935a can be connected to the wastewater outlet 104 of the filtration system 100. In the embodiment where the water purifier includes the filter waterway plate 110, the fifth inlet 935a can be connected to the tenth port 124b of the filter waterway plate 110; the fifth interface 935c and the sixth inlet 936a are respectively connected to the inlet and outlet of the exhaust valve 566; the sixth outlet 936b is connected to the exhaust port 223 of the heating system 200, and the fifth outlet 935b is connected to the wastewater outlet 602 of the water purifier.

[0318] In other words, the wastewater discharged from the wastewater outlet 104 of the filtering system 100 flows into the water outlet waterway plate 900 through the fifth inlet 935a, and then flows from the fifth outlet 935b to the wastewater outlet 602 of the water purifier for discharge; the steam or water discharged from the exhaust port 223 of the heating system 200 can flow to the wastewater outlet 602 of the water purifier for discharge through the sixth outlet 936b, the exhaust valve 566, and the fifth outlet 935b.

[0319] In this way, in the water purifier, the pipe connection and valve installation of the wastewater pipe and the safety branch 550 are extremely simple and not prone to assembly errors. The water outlet waterway plate 900 of this structural form helps to simplify the waterway layout structure of the water purifier.

[0320] In some embodiments, Fig.17 As shown, the fifth port 935c and the sixth inlet 936a are arranged side by side and open in the same direction, which facilitates the installation of the exhaust valve 566.

[0321] In some embodiments, Fig.17 As shown, the fifth inlet 935a is open to the first edge of the substrate 910; the sixth outlet 936b is open to the second edge of the substrate 910; the fifth outlet 935b is open to the third edge of the substrate 910; the fifth interface 935c and the sixth inlet 936a are located on one side of the substrate 910; and the sixth outlet 936b is located on the other side of the substrate 910.

[0322] In this way, the valves are basically installed on one side of the substrate 910, the water outlets used to connect to the external pipelines of the water purifier are relatively concentrated, the water outlets used to connect to the heating system 200 of the water purifier are relatively concentrated, and the water outlets used to connect to the filter water circuit plate 110 of the water purifier are relatively concentrated.

[0323] In some embodiments, Fig.17 As shown, the fifth inlet 935a and the fifth outlet 935b are respectively located at the two ends of the fifth water pipe 935, and the fifth interface 935c is led out from the peripheral wall of the fifth water pipe 935; the sixth outlet 936b is located at one end of the fourth water pipe 924, and the sixth inlet is led out from the peripheral wall of the sixth water pipe 936.

[0324] In this way, the water outlet waterway plate 900 has a simple structure and is easy to process while achieving the above-mentioned waterway connection relationship.

[0325] In some embodiments, Figure 17-Figure 20 As shown, the multiple water pipes of the water outlet waterway plate 900 include: a seventh water pipe 947. The seventh water pipe 947 has a seventh inlet 947a and a seventh outlet 947b, and the seventh inlet 947a and the seventh outlet 947b are connected to each other.

[0326] When the water outlet waterway plate 900 is installed in a water purifier, the seventh inlet 947 a may be connected to the first water supply port of the water purifier, and the seventh outlet 947 b may be connected to the water outlet 222 of the heating system 200 .

[0327] In this way, in the water purifier, the hot water outlet pipe is also integrated into the water outlet waterway plate 900, which is not easy to assemble incorrectly. The water outlet waterway plate 900 of this structural form helps to simplify the waterway layout structure of the water purifier.

[0328] In some embodiments, Figure 17-Figure 20 As shown, the multiple water pipes of the water outlet waterway plate 900 include: an eighth water pipe 958. The eighth water pipe 958 has an eighth inlet 958a and an eighth outlet 958b, and the eighth inlet 958a and the eighth outlet 958b are connected to each other.

[0329] When the outlet waterway plate 900 is installed on the water purifier, the eighth inlet 958a can be connected to the raw water inlet 101 of the filtration system 100. In the embodiment where the water purifier includes the filter waterway plate 110, the eighth inlet 958a can be connected to the sixth port 121b of the filter waterway plate 110; the eighth outlet 958b can be connected to the tap water pipe.

[0330] In this way, in the water purifier, the pipeline for raw water access is also integrated into the water outlet waterway plate 900, which is not easy to assemble incorrectly. The water outlet waterway plate 900 of this structural form helps to simplify the waterway layout structure of the water purifier.

[0331] In various embodiments of the present invention, Figure 1 As shown, the filtration system 100 may include an exhaust check valve 565 , which is unidirectional from the exhaust port 223 of the heating system 200 to the wastewater outlet 602 of the water purifier. The exhaust check valve 565 can prevent wastewater from flowing back into the heating system 200 .

[0332] The exhaust check valve 565 may be disposed between the exhaust valve 566 and the exhaust port 223 , or the exhaust valve 566 may be disposed between the exhaust check valve 565 and the exhaust port 223 .

[0333] In various embodiments of the present invention, Figure 1 As shown, the water purifier may further include: a water return pipe 540 , which is connected between the purified water outlet 105 and the inlet of the water pump 510 .

[0334] When the water purifier is just turned on and the water pump 510 is working, the pure water at the clean water outlet 105 can be sucked back into the water pump 510 through the return pipe 540. Since the water pump 510 is arranged upstream of the clean water outlet 105 of the filtration system 100, the pure water sucked in can enter the filtration system 100 again for at least one level of filtration.

[0335] In other words, when the return pipe 540 is connected, the first cup of water with poor quality can be prevented from flowing out, and the quality of the water introduced into the filter system 100 is equivalent to enhancing the quality of the purified water at the purified water outlet 105 of the filter system 100. In particular, for the first cup of water, the quality of the first cup of water can be greatly improved by setting the return pipe 540.

[0336] In some embodiments, Figure 1 As shown, the return pipe 540 is connected to a position close to the second water supply port of the water purifier. Fig.17 In the water outlet waterway plate 900 shown, the second interface 921d of the first water pipe 921 is arranged near the first outlet 921b of the first water pipe 921. In this way, in the reflux fresh water mode, the pure water retained in the pipeline can be pumped to the inlet of the water pump 510 as much as possible.

[0337] In some embodiments, Figure 1 As shown, the return pipe 540 is provided with a return control valve 564, which is used to control the conduction state of the return pipe 540. The return control valve 564 can be a solenoid valve, and the return control valve 564 can be electrically connected to the controller of the water purifier. The water purifier is configured to open the return control valve 564 and maintain it for a preset time each time the water purifier is turned on. The preset time can be 5s-25s, such as 10s.

[0338] In some embodiments, Figure 1 As shown, the return pipe 540 is provided with a return check valve 563 and a return control valve 564. The return check valve 563 is unidirectional from the clean water outlet 105 to the inlet of the water pump 510. The return control valve 564 is used to control the conduction state of the return pipe 540. The return control valve 564 can be a solenoid valve. The return check valve 563 can prevent the water that has not been completely filtered from the return pipe 540 from directly flowing into the clean water outlet 105 or the first water supply port.

[0339] The water purifier has a fresh water return mode, in which the water pump 510 and the return water control valve 564 are turned on. The water purifier is configured to start the fresh water return mode each time the water purifier is powered on, and the mode lasts for a preset time, which may be 5s-25s, such as 10s.

[0340] In various embodiments of the present invention, the filtration system 100 may include a plurality of filter elements, and the plurality of filter elements may be independently provided or integrated into a composite filter element.

[0341] In some embodiments, the filtration system 100 includes a first filter element and a second filter element, the water inlet end of the first filter element is connected to the raw water inlet 101, the water outlet end of the first filter element is connected to the inlet of the water pump 510, the outlet of the water pump 510 is connected to the water inlet end of the second filter element, and the water outlet end of the second filter element is connected to the clean water outlet 105.

[0342] The first filter element is used to achieve preliminary filtration of raw water, and can filter out large particles such as mud, rust, insect eggs, and red worms in the raw water. The raw water can be tap water, well water, etc. The first filter element can be a PP cotton filter element (polypropylene melt-blown filter element), a carbon rod filter element, a composite filter element, etc.

[0343] The second filter element has a reverse osmosis membrane, which can be an artificial semi-permeable membrane. The pore size of the reverse osmosis membrane is very small, and it can effectively remove impurities such as dissolved salts, colloids, microorganisms, organic matter, etc. in water.

[0344] In some embodiments, the filtration system 100 includes a first filter element, a second filter element and a third filter element. The water inlet end of the first filter element is connected to the raw water inlet 101, the water outlet end of the first filter element is connected to the inlet of the water pump 510, the outlet of the water pump 510 is connected to the water inlet end of the second filter element, the water outlet end of the second filter element is connected to the water inlet end of the third filter element, and the water outlet end of the third filter element is connected to the clean water outlet 105.

[0345] The first filter element is used to achieve preliminary filtration of raw water, and can filter out large particles such as mud, rust, insect eggs, and red worms in the raw water. The raw water can be tap water, well water, etc. The first filter element can be a PP cotton filter element (polypropylene melt-blown filter element), a carbon rod filter element, a composite filter element, etc.

[0346] The second filter element has a reverse osmosis membrane, which can be an artificial semi-permeable membrane. The pore size of the reverse osmosis membrane is very small, and it can effectively remove impurities such as dissolved salts, colloids, microorganisms, organic matter, etc. in water.

[0347] The third filter element is used to absorb odor and residual chlorine, and can be used to improve the taste of purified water. The third filter element can be an activated carbon filter element.

[0348] The water purifiers of various embodiments of the present invention can provide a variety of water or beverages, for example, can provide purified water at room temperature and purified water after heating.

[0349] In some embodiments, Figure 1 As shown, the water purifier further includes: a first branch 520 and a second branch 530 .

[0350] The first branch 520 is connected between the purified water outlet 105 of the filtering system 100 and the first water supply port of the water purifier, and the heating system 200 is arranged on the first branch 520, the water inlet 221 and the water outlet 222 of the heating system 200 are both connected to the first branch 520, and the water inlet 221 and the water outlet 222 of the heating system 200 can be connected in series to the first branch 520. The second branch 530 is connected between the purified water outlet 105 and the second water supply port of the water purifier.

[0351] In this embodiment, the first water supply port provides hot water through the first branch 520 , and the second water supply port provides pure water at room temperature through the second branch 530 .

[0352] The first water supply port and the second water supply port may both be connected to the faucet 800. When the faucet 800 connected to the first water supply port or the second water supply port is turned on, the corresponding branch can be opened.

[0353] In some embodiments, Figure 1 As shown, the return pipe 540 is connected to the purified water outlet 105 through the second branch 530, and the connection between the return pipe 540 and the second branch 530 is located near the second water supply port. Fig.17 In the water outlet waterway plate 900 shown, the second interface 921d of the first water pipe 921 is arranged near the first outlet 921b of the first water pipe 921. In this way, in the reflux fresh water mode, the pure water retained in the pipeline can be pumped to the inlet of the water pump 510 as much as possible.

[0354] In some embodiments, Figure 1 As shown, the first branch 520 is provided with a clean water control valve 562, which is used to control the conduction state of the first branch 520. The clean water control valve 562 can be a solenoid valve, and the clean water control valve 562 can be electrically connected to the controller of the water purifier.

[0355] In some embodiments, Figure 1 As shown, the first branch 520 is provided with a clean water one-way valve 561 and a clean water control valve 562. The clean water control valve 562 is used to control the conduction state of the first branch 520. The clean water control valve 562 can be a solenoid valve. The clean water control valve 562 can be electrically connected to the controller of the water purifier. The clean water one-way valve 561 conducts one-way from the clean water outlet 105 to the first water supply port.

[0356] In some embodiments, Figure 1 As shown, the water purifier also includes: an exhaust valve 566 and a waste water valve 567.

[0357] The exhaust valve 566 is connected between the exhaust port 223 of the heating system 200 and the wastewater outlet 602 of the water purifier. The exhaust valve 566 is used to control the conduction state between the exhaust port 223 and the wastewater outlet 602. The exhaust valve 566 can be a solenoid valve, and the exhaust valve 566 can be electrically connected to the controller of the water purifier, or the exhaust valve 566 can be a pressure valve. When the exhaust valve 566 is opened, the pressure relief or drainage of stale water of the heating system 200 can be achieved through the exhaust port 223.

[0358] The wastewater valve 567 is connected between the wastewater port 104 of the filtration system 100 and the wastewater outlet 602 of the water purifier, and is used to control the conduction state between the wastewater port 104 and the wastewater outlet 602. The wastewater valve 567 can be a solenoid valve, and the wastewater valve 567 can be electrically connected to the controller of the water purifier.

[0359] In various embodiments of the present invention, Figure 4 , Figure 6 and Fig.11 As shown, the water purifier may further include: a water outlet waterway plate 900, each water outlet of the heating system 200 is connected to the water outlet waterway plate 900, and the water outlet waterway plate 900 is installed on the second bracket 320. In this way, the pipeline arrangement in the water purifier can be reduced, the difficulty of assembly can be reduced, the wrong assembly can be prevented, and the assembly efficiency can be improved.

[0360] like Figure 4 , Figure 6 and Fig.11 As shown, the filter waterway plate 110 is located at one end of the length direction of the second bracket 320. The outlet waterway plate 900 and the second bracket 320 are arranged along direction B. In this way, the space below the second bracket 320 is fully utilized, and the structure of the entire water purifier is compact.

[0361] In various embodiments of the present invention, Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, the water purifier may also include: a water pump 510, which is connected to the filtration system 100, and is used to drive water from the raw water inlet 101 of the filtration system 100 to flow to the purified water outlet 105, and the water pump 510 is used to drive water to be discharged from the water outlet 222 of the heating system 200.

[0362] In other words, in one of the working modes of the water purifier, raw water flows into the filtration system 100 from the raw water inlet 101 of the filtration system 100, and is driven by the water pump 510. After filtration, purified water flows out from the purified water outlet 105 of the filtration system 100. The purified water flowing out from the purified water outlet 105 of the filtration system 100 flows into the heating system 200 from the water inlet 221 of the heating system 200. After heating, driven by the water pump 510, the purified water flows into the first water supply port of the water purifier from the water outlet 222 of the heating system 200, thereby supplying hot water.

[0363] In addition to driving raw water to flow from the raw water inlet 601 to the clean water outlet 105 for filtration, the water pump 510 can also drive hot water to be discharged from the water outlet 222 of the heating system 200 .

[0364] In other words, the water pump 510 is both a driving pump for the filtering system 100 and a driving pump for the heating system 200. The hot water in the embodiment of the present invention is not pumped out from the heating system 200 by designing an independent water pump, but by forming a water pressure difference between the water inlet 221 and the water outlet 222 of the heating system 200 through the water pump 510 shared with the filtering system 100, and the upper hot water is pushed out to the first water supply port of the water purifier through the water pressure difference. In this way, the introduction of outside air into the water path of the water purifier can be avoided to prevent secondary pollution.

[0365] like Figure 4-Figure 6 As shown, the water pump 510 is installed on the first bracket 310 , and the water pump 510 is located between the first bracket 310 and the second bracket 320 .

[0366] It is understandable that in this embodiment, there is no need to design an independent bracket for the water pump 510, which can simplify the layout of the water purifier and make the structure more compact. The water pump 510 is installed between the first bracket 310 and the second bracket 320, so that the two brackets can better protect the more expensive water pump 510, and the water pump 510 is located between the filtering system 100 and the heating system 200 (heating system 200), which is equivalent to being located in the middle area of ​​the entire water purifier. The noise of the water pump 510 can be effectively isolated by using the barrier effect of other peripheral structures.

[0367] In various embodiments of the present invention, Figure 6 , Figure 8 and Fig.11 As shown, the second bracket 320 and the first bracket 310 are both provided with flanges protruding toward each other, and the flanges are used to define a middle installation cavity 323 .

[0368] In other words, the first bracket 310 is provided with a first flange 312 protruding toward the second bracket 320, and the second bracket 320 is provided with a second flange 322 protruding toward the first bracket 310. The first flange 312 and the second flange 322 are used to define an intermediate installation cavity 323 together with the first bracket 310 and the second bracket 320, and the water pump 510 is installed in the intermediate installation cavity 323.

[0369] In this way, the six sides of the water pump 510 are all provided with protective structures, which can better protect the water pump 510.

[0370] In various embodiments of the present invention, Figure 5 and Figure 6 As shown, the filter system 100, the water pump 510 and the heating system 200 are arranged side by side along the docking direction of the first bracket 310 and the second bracket 320, and the length directions of the filter system 100, the water pump 510 and the heating system 200 are parallel.

[0371] Wherein, direction A is the docking direction of the first bracket 310 and the second bracket 320 , direction B is the length direction of the filtering system 100 , the water pump 510 and the heating system 200 , and direction A is perpendicular to direction B.

[0372] With the above layout, the entire water purifier has a compact structure and occupies a small space, which is convenient for under-kitchen layout. In addition, the length directions of the filtering system 100, the water pump 510 and the heating system 200 are parallel, which makes it easy to independently disassemble each component in this direction.

[0373] In various embodiments of the present invention, Figure 8 and Fig.10 As shown, the water purifier of the embodiment of the present invention may further include: a filter waterway plate 110 , each water outlet of the filter system 100 and the water pump 510 are connected to the filter waterway plate 110 , and the filter waterway plate 110 is installed on the first bracket 310 .

[0374] In other words, each water outlet of the filtration system 100 and the water pump 510 is connected to other pipelines through the filtration water circuit plate 110, which can simplify the pipeline layout in the entire water purifier. There are fewer pipelines in the water purifier, which is convenient for pipe laying.

[0375] In various embodiments of the present invention, Figure 1 As shown, the filtration system 100 includes: a raw water inlet 101, a water pump inlet 102, a water pump outlet 103, a wastewater outlet 104 and a clean water outlet 105, one end of the water pump inlet 102 is connected to the water outlet end of the first filter element, the other end of the water pump inlet 102 is connected to the inlet of the water pump 510, and the outlet of the water pump 510 is connected to the water pump outlet 103.

[0376] like Fig.10 As shown, the filter waterway plate 110 includes a plurality of tube bodies 111, and the tube bodies 111 have a plurality of water outlets, including a first outlet 121a, a second outlet 122a, a third outlet 123a, a fourth outlet 124a, a fifth outlet 125a, a sixth outlet 121b, a seventh outlet 122b, an eighth outlet 122c, a ninth outlet 123b, a tenth outlet 124b, an eleventh outlet 124c and a twelfth outlet 125b.

[0377] The first port 121a is connected to the raw water inlet 101 of the filtration system 100, the second port 122a is connected to the water pump inlet 102 of the filtration system 100, the third port 123a is connected to the water pump outlet 103 of the filtration system 100, the fourth port 124a is connected to the waste water outlet 104 of the filtration system 100, and the fifth port 125a is connected to the clean water outlet 105 of the filtration system 100.

[0378] The sixth port 121b is connected to the first port 121a, the seventh port 122b and the eighth port 122c are connected to the second port 122a, the ninth port 123b is connected to the third port 123a, the tenth port 124b and the eleventh port 124c are connected to the fourth port 124a, and the twelfth port 125b is connected to the fifth port 125a.

[0379] The sixth port 121b is used to introduce raw water. Specifically, the sixth port 121b can be connected to the eighth inlet 958a of the outlet waterway plate 900, the seventh port 122b is used to install the water pump inlet valve 568, the eighth port 122c is connected to the inlet of the water pump 510, the ninth port 123b is connected to the outlet of the water pump 510, the tenth port 124b is used to be connected to the wastewater outlet 602, the eleventh port 124c is used to install the wastewater valve 567, and the twelfth port 125b is used to be connected to the water inlet 221 of the hot water system or the second water supply port of the water purifier. Specifically, the twelfth port 125b can be connected to the first inlet 921a of the outlet waterway plate 900.

[0380] In some specific embodiments, Fig.10 As shown, five tubes 111 are arranged side by side, and one end of the five tubes 111 respectively forms a first port 121a, a second port 122a, a third port 123a, a fourth port 124a and a fifth port 125a arranged side by side, and the raw water inlet 101, the water pump inlet 102, the water pump outlet 103, the waste water outlet 104 and the clean water outlet 105 are also arranged side by side in the filtration system 100, for example Figure 8 and Fig.10 In the illustrated embodiment, the third port 123a, the first port 121a, the fifth port 125a, the second port 122a and the fourth port 124a are arranged side by side in sequence, and correspondingly, the water pump inlet 102, the raw water inlet 101, the clean water outlet 105 and the water pump inlet 102 are arranged side by side in sequence.

[0381] In various embodiments of the present invention, Figure 6 and Figure 8 As shown, the filter waterway plate 110 is located between the first bracket 310 and the second bracket 320. In this way, the first bracket 310 and the second bracket 320 can be fully utilized to protect the filter waterway plate 110 and prevent the filter waterway plate 110 from being damaged by impact.

[0382] In some embodiments, Figure 6 and Figure 8 As shown, the filter waterway plate 110 is installed at one end of the length direction of the water pump 510. The filter waterway plate 110 and the water pump 510 are arranged along direction B. In this way, the space between the first bracket 310 and the second bracket 320 is fully utilized, and the structure of the entire water purifier is compact.

[0383] In some embodiments, Fig.10 As shown, the filter water circuit plate 110 includes: a support 112 and a plurality of tubes 111 installed on the support 112 , the support 112 is connected to the first bracket 310 , and each water outlet of the filter system 100 and each water outlet of the water pump 510 are respectively connected to the corresponding tubes 111 of the filter water circuit plate 110 .

[0384] In the actual production process, the support 112 and the tube body 111 can be integrally processed plastic parts. A hollow structure or a weight-reducing hole can be designed on the support 112 to help reduce the weight of the whole machine.

[0385] In some embodiments, Fig.10 As shown, the support 112 includes a connecting arm 113. There may be two connecting arms 113. The two connecting arms 113 are respectively arranged at two ends of the support 112 and extend upward. The tube body 111 is located between the two connecting arms 113. Fig. 9 As shown, the first bracket 310 is provided with a connecting arm mounting hole 311, and correspondingly, there are two connecting arm mounting holes 311. The first bracket 310 is also provided with a tube body avoidance hole 313 for avoiding the tube body 111, and multiple tube body avoidance holes 313 can be connected to form a through-going whole. In this way, the matching relationship between the tube body avoidance hole 313 and the tube body 111 and the matching relationship between the connecting arm mounting hole 311 and the connecting arm 113 can play a role in positioning the filter waterway plate 110.

[0386] like Figure 6 and Figure 8 As shown, the water purifier may further include a pressure rod 712, which is used to press the filter system 100, one end of which is connected to the first bracket 310, and the connecting arm 113 passes through the connecting arm mounting hole 311 and is connected to the other end of the pressure rod 712. In this way, when the filter element of the filter system 100 needs to be replaced, the filter element can be easily removed by removing the pressure rod 712.

[0387] In various embodiments of the present invention, Figure 4 As shown, the housing may include: a housing 701, a front housing 702, an upper cover 703, a top cover 704, and a base 705. The front housing 702, the upper cover 703, the top cover 704, and the base 705 are all mounted on the housing 701. The housing may be a plastic part or a metal part, or a plastic part may be coated with a metal coating.

[0388] In various embodiments of the present invention, Figure 4 As shown, the water purifier may further include: a water leakage protection valve 569 , a decorative panel 706 , a power adapter 707 , a display 708 , an electric control box 709 , a power board 710 and a TDS (Total dissolved solids) detection probe 711 .

[0389] In various embodiments of the present invention, the water purifier may further include: a controller (not shown in the figure), which is electrically connected to the heating system 200, the clean water control valve 562, the exhaust valve 566, the waste water valve 567 and the water pump 510. The controller is used to control the opening and closing of the heating system 200, the clean water control valve 562, the exhaust valve 566, the waste water valve 567 and the water pump 510.

[0390] In some embodiments, the controller is configured to control the water purifier to sequentially enter the first flushing mode, the forced flushing mode and the draining mode when it is determined that the water purifier is powered on for the first time.

[0391] In the first flushing mode, the water pump 510 is turned on, the clean water control valve 562 is turned off, the heating system 200 is turned off, the waste water valve 567 is turned on, and the exhaust valve 566 is turned off. In this mode, raw water flows in from the raw water inlet 101 under the driving action of the water pump 510 and is then discharged from the waste water outlet 104, preventing impurities in the filter system 100 from entering the heating system 200 during the first use.

[0392] In such Figure 1 In the illustrated embodiment, referring to Table 1, in the first flushing mode, the water pump 510 is turned on, the water pump inlet valve 568 is turned on, the clean water control valve 562 is closed, the heating system 200 is closed, the waste water valve 567 is opened, and the exhaust valve 566 is closed.

[0393] In the forced flushing mode, the second water supply port (normal temperature water port of the faucet 800) is opened, the water pump 510 is turned on, the water purification control valve 562 is disconnected, the heating system 200 is turned off, the waste water valve 567 is closed, and the exhaust valve 566 is closed. In this mode, raw water flows in from the raw water inlet 101 under the driving action of the water pump 510, and then is discharged from the second water supply port of the faucet 800, so that a large flow of flushing can be provided.

[0394] In such Figure 1 In the illustrated embodiment, referring to Table 1, in the forced flushing mode, the water pump 510 is turned on, the water pump inlet valve 568 is turned on, the clean water control valve 562 is closed, the heating system 200 is closed, the waste water valve 567 is closed, and the exhaust valve 566 is closed.

[0395] In the stale water discharge mode, the second water supply port is closed, the water pump 510 is turned on, the clean water control valve 562 is opened, the heating system 200 is closed, the waste water valve 567 is closed, and the exhaust valve 566 is opened. In this mode, raw water flows in from the raw water inlet 101 under the driving action of the water pump 510, and then flushes the heating system 200, and the stale water in the heating system 200 is discharged from the exhaust port 223.

[0396] In such Figure 1In the illustrated embodiment, referring to Table 1, in the drainage mode, the water pump 510 is turned on, the water pump inlet valve 568 is turned on, the water purification control valve 562 is turned on, the heating system 200 is turned off, the waste water valve 567 is closed, and the exhaust valve 566 is opened.

[0397] In some embodiments, the preset duration of the first flushing mode is t1, the preset duration of the forced flushing mode is t2, and the preset duration of the draining mode is t3, which satisfies: 15s≤t1≤60s, 6min≤t2≤15min, 2min≤t3≤5min. By limiting the duration of each mode to the above range, water consumption can be reduced while ensuring a clean flush.

[0398] In a specific embodiment, when it is determined that the water purifier is powered on for the first time, all loads are turned off for 5 seconds, and after entering the first flushing mode for 30 seconds, the faucet 800 handle of the second water supply port is opened, and the forced flushing mode is entered for 10 minutes. After completion, the faucet 800 handle of the second water supply port is closed, and then the drain water mode is entered for 3 minutes.

[0399] In some embodiments, the controller is configured to control the water purifier to enter the flushing mode when it is determined that the water purifier is not powered on for the first time.

[0400] As shown in Table 1, in the flushing mode, the water pump 510 is turned on, the clean water control valve 562 is disconnected, and the waste water valve 567 is opened. In this mode, raw water flows in from the raw water inlet 101 under the driving action of the water pump 510, and then is discharged from the waste water outlet 104, preventing impurities deposited in the filtration system 100 from flowing downstream.

[0401] In such Figure 1 In the illustrated embodiment, referring to Table 1, in the flushing mode, the water pump 510 is turned on, the water pump inlet valve 568 is turned on, the clean water control valve 562 is closed, the waste water valve 567 is opened, and the heating system 200 and the exhaust valve 566 are turned on or off based on the temperature of the heating system 200.

[0402] like Fig.21 As shown, if the heating system 200 and the exhaust valve 566 are both in the closed state, it is determined that the temperature of the heating system 200 is less than the first target temperature, and the heating system 200 and the exhaust valve 566 are both switched to the open state. If the heating system 200 and the exhaust valve 566 are both in the open state, it is determined that the temperature of the heating system 200 is greater than or equal to the second target temperature, and the heating system 200 and the exhaust valve 566 are both switched to the closed state; wherein the second target temperature is higher than the first target temperature.

[0403] In other words, whether the working states of the heating system 200 and the exhaust valve 566 need to be switched needs to be determined based on the current working states of the heating system 200 and the exhaust valve 566 and the temperature of the heating system 200 .

[0404] In some embodiments, the first target temperature is T1, and the second target temperature is T2, which satisfies: 65°C ≤ T1 ≤ 75°C, 90°C ≤ T2 ≤ 100°C. In other words, in a relatively low temperature range, the heating system 200 needs to be turned on to heat the purified water, and the exhaust valve 566 needs to be turned on to prevent excessive pressure in the heating system 200; when heated to a relatively high temperature range, the heating system 200 and the exhaust valve 566 can be turned off based on a higher threshold.

[0405] In a specific embodiment, T1 = 70°C, T2 = 95°C.

[0406] In actual implementation, if it is not the first power-on, all loads are turned off for 5 seconds and enter the flushing mode for 25 seconds.

[0407] In some embodiments, the controller is configured to determine that the second water supply port of the water purifier is open after the flushing mode ends, and control the water purifier to enter the normal temperature water production mode. In the normal temperature water production mode, the water pump 510 is turned on, the water purification control valve 562 is disconnected, the waste water valve 567 is closed, and the exhaust valve 566 is closed, and the heating system 200 is controlled based on the received temperature of the heating system 200.

[0408] During actual use, when the handle of the faucet 800 corresponding to the second water supply port is opened, the water purifier can be activated and enters the flushing mode. After the flushing mode ends, it automatically enters the normal temperature water making mode. In this mode, raw water flows in from the raw water inlet 101 under the driving action of the water pump 510, and then flows out from the second water supply port through the second branch 530 from the purified water outlet 105.

[0409] In such Figure 1 In the illustrated embodiment, referring to Table 1, in the normal temperature water production mode, the water pump 510 is turned on, the water pump inlet valve 568 is turned on, the clean water control valve 562 is closed, the waste water valve 567 is closed, the exhaust valve 566 is closed, and the heating system 200 is controlled based on the received temperature of the heating system 200.

[0410] Specifically, Fig. 22 As shown, if the heating system 200 is in the off state, it is determined that the temperature of the heating system 200 is less than the third target temperature, and the heating system 200 is controlled to switch to the on state; if the heating system 200 is in the on state, it is determined that the temperature of the heating system 200 is greater than or equal to the fourth target temperature, and the heating system 200 is controlled to switch to the off state; wherein the fourth target temperature is higher than the third target temperature.

[0411] In other words, whether the working state of the heating system 200 needs to be switched needs to be determined based on the current working state of the heating system 200 and the temperature of the heating system 200 .

[0412] In some embodiments, the third target temperature is T3, and the fourth target temperature is T4, which satisfies: 65°C ≤ T3 ≤ 75°C, 76°C ≤ T4 ≤ 85°C. In other words, in a relatively low temperature range, the heating system 200 needs to be turned on to heat the purified water; when heated to a relatively high temperature range, the heating system 200 can be turned off based on a higher threshold.

[0413] In a specific embodiment, T3=70°C, T4=80°C.

[0414] In some embodiments, the controller is configured to determine that the first water supply port of the water purifier is opened after the flushing mode ends, and control the water purifier to enter the hot water production mode. In the hot water production mode, the water pump 510 is turned on, the water purification control valve 562 is opened, the waste water valve 567 is closed, and the exhaust valve 566 is closed. The heating system 200 is controlled based on the received temperature of the heating system 200.

[0415] During actual use, the handle of the faucet 800 corresponding to the first water supply port is opened to activate the water purifier, and the water purifier enters the flushing mode. After the flushing mode ends, it automatically enters the hot water production mode. In this mode, raw water flows in from the raw water inlet 101 under the drive of the water pump 510, and then flows into the heating system 200 from the purified water outlet 105. The hot water on the upper part of the heating system 200 flows out from the first water supply port driven by the water pressure.

[0416] In such Figure 1 In the illustrated embodiment, referring to Table 1, in the hot water production mode, the water pump 510 is turned on, the water pump inlet valve 568 is turned on, the clean water control valve 562 is turned on, the waste water valve 567 is closed, the exhaust valve 566 is closed, and the heating system 200 is controlled based on the received temperature of the heating system 200.

[0417] Specifically, Fig. 22 As shown, if the heating system 200 is in the off state, it is determined that the temperature of the heating system 200 is less than the third target temperature, and the heating system 200 is controlled to switch to the on state; if the heating system 200 is in the on state, it is determined that the temperature of the heating system 200 is greater than or equal to the fourth target temperature, and the heating system 200 is controlled to switch to the off state; wherein the fourth target temperature is higher than the third target temperature.

[0418] In other words, whether the working state of the heating system 200 needs to be switched needs to be determined based on the current working state of the heating system 200 and the temperature of the heating system 200 .

[0419] In some embodiments, the third target temperature is T3, and the fourth target temperature is T4, which satisfies: 65°C ≤ T3 ≤ 75°C, 76°C ≤ T4 ≤ 85°C. In other words, in a relatively low temperature range, the heating system 200 needs to be turned on to heat the purified water; when heated to a relatively high temperature range, the heating system 200 can be turned off based on a higher threshold.

[0420] In a specific embodiment, T3=70°C, T4=80°C.

[0421] In some embodiments, after the flushing mode ends, it is determined that the first water supply port and the second water supply port of the water purifier are both open, and the water purifier is controlled to enter the warm water production mode. In the warm water production mode, the water pump 510 is turned on, the water purification control valve 562 is opened, the waste water valve 567 is closed, and the exhaust valve 566 is closed, and the heating system 200 is controlled based on the received temperature of the heating system 200.

[0422] In actual use, the handles of the faucets 800 corresponding to the first water supply port and the second water supply port are opened to activate the water purifier, and the water purifier enters the flushing mode. After the flushing mode ends, it automatically enters the warm water production mode. In this mode, raw water flows in from the raw water inlet 101 driven by the water pump 510, and a part of the pure water flows into the heating system 200 from the clean water outlet 105. The hot water on the upper part of the heating system 200 flows out from the first water supply port driven by the water pressure, and another part of the pure water flows out from the clean water outlet 105 through the second branch 530 from the second water supply port.

[0423] In such Figure 1 In the illustrated embodiment, referring to Table 1, in the warm water production mode, the water pump 510 is turned on, the water pump inlet valve 568 is turned on, the clean water control valve 562 is turned on, the waste water valve 567 is closed, the exhaust valve 566 is closed, and the heating system 200 is controlled based on the received temperature of the heating system 200.

[0424] Specifically, Fig. 22 As shown, if the heating system 200 is in the off state, it is determined that the temperature of the heating system 200 is less than the third target temperature, and the heating system 200 is controlled to switch to the on state; if the heating system 200 is in the on state, it is determined that the temperature of the heating system 200 is greater than or equal to the fourth target temperature, and the heating system 200 is controlled to switch to the off state; wherein the fourth target temperature is higher than the third target temperature.

[0425] In other words, whether the working state of the heating system 200 needs to be switched needs to be determined based on the current working state of the heating system 200 and the temperature of the heating system 200 .

[0426] In some embodiments, the third target temperature is T3, and the fourth target temperature is T4, which satisfies: 65°C ≤ T3 ≤ 75°C, 76°C ≤ T4 ≤ 85°C. In other words, in a relatively low temperature range, the heating system 200 needs to be turned on to heat the purified water; when heated to a relatively high temperature range, the heating system 200 can be turned off based on a higher threshold.

[0427] In a specific embodiment, T3=70°C, T4=80°C.

[0428] As shown in Table 1, the water purifier also has a standby state. In the standby state, the water pump 510 is turned off, the water pump inlet valve 568 is closed, the purified water control valve 562 is closed, the waste water valve 567 is closed, and the exhaust valve 566 and the heating system 200 are turned on or off based on the temperature of the heating system 200.

[0429] like Fig.21 As shown, if the heating system 200 and the exhaust valve 566 are both in the closed state, it is determined that the temperature of the heating system 200 is less than the first target temperature, and the heating system 200 and the exhaust valve 566 are both switched to the open state. If the heating system 200 and the exhaust valve 566 are both in the open state, it is determined that the temperature of the heating system 200 is greater than or equal to the second target temperature, and the heating system 200 and the exhaust valve 566 are both switched to the closed state; wherein the second target temperature is higher than the first target temperature.

[0430] Table 1

[0431]

[0432] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0433] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A faucet, characterized in that: include: A faucet body, wherein the faucet body is provided with a body limiting portion; the body limiting portion is a boss protruding from the faucet body, or the body limiting portion is provided in a groove of the faucet body; A control valve core, the control valve core is installed on the faucet body; A first end cover, the first end cover is movably mounted on the faucet body and connected to the control valve core; A lock body, wherein the lock body is movably mounted on the first end cover between a locked position and an unlocked position, and the lock body is provided with two limit structures arranged in back-to-back relation, wherein in the locked position, one of the limit structures cooperates with the limit part of the body to lock the first end cover with the faucet body, and the other limit structure cooperates with the first end cover to limit the first end cover, and in the unlocked position, the limit structure is disengaged from the limit part of the body to unlock the first end cover with the faucet body; A limiting shaft, wherein the lock body is provided with a limiting hole penetrating the lock body, the limiting shaft penetrates the limiting hole and extends out from both ends of the limiting hole, and the two ends of the limiting shaft extending out of the limiting hole respectively form two limiting structures; A water mixing valve core, the water mixing valve core is installed on the faucet body, and the water mixing valve core has a first inlet, a second inlet and a water mixing outlet; A second end cover, which is movably mounted on the faucet body and connected to the water mixing valve core A first water outlet pipe, wherein the first water outlet pipe is connected to an outlet of the control valve core; a second water outlet pipe, the second water outlet pipe being connected to the mixed water outlet of the mixed water valve core; An inner core, the inner core is mounted on the faucet body, the inner core has a first flow channel, a second flow channel, a third flow channel and a fourth flow channel, the first flow channel has two outlets, the two outlets of the first flow channel are respectively connected to the inlet of the control valve core and the first inlet of the water mixing valve core, and the outlet of the second flow channel is connected to the second inlet of the water mixing valve core; The first water outlet pipe is connected to the outlet of the control valve core through the third flow channel; The second water outlet pipe is connected to the mixed water outlet of the mixed water valve core through the fourth flow channel; Wherein, when the lock body is located at the locking position, the first end cover and the faucet body cannot move relative to each other, and when the first end cover is operated, the first end cover is locked and water cannot flow out.

2. The faucet according to claim 1, characterized in that: The first end cover comprises: A cover body, wherein the cover body is provided with a mounting hole; A guide sleeve protrudes from the inner wall of the cover body and faces the mounting hole. The lock body passes through the mounting hole and is movably mounted in the guide sleeve.

3. The faucet according to claim 2, characterized in that: The first side wall of the guide sleeve facing the main body limiting portion and the second side wall arranged opposite to the first side wall are both provided with avoidance grooves extending along the movement direction of the lock body, the two limiting structures respectively extend into the avoidance grooves, and one of the limiting structures passes through the corresponding avoidance groove to be suitable for limiting cooperation with the main body limiting portion.

4. The faucet according to claim 3, characterized in that: A guide surface expanding outwards is provided at the notch of the avoidance groove.

5. The faucet according to claim 1, characterized in that: Also includes: An elastic return member is elastically installed between the lock body and the first end cover so that the lock body is located at the locking position in a natural state.

6. The faucet according to claim 5, characterized in that: The first end cover comprises: Cover body; A connecting portion is installed in the cover body, the connecting portion is connected to the control valve core, and one end of the elastic reset member stops at the connecting portion.

7. The faucet according to claim 6, characterized in that: The connecting portion is stopped at two sides of the outer wall of the elastic reset member and is provided with limiting flanges, and the limiting flanges protrude toward the direction close to the lock body.

8. The faucet according to claim 5, characterized in that: A limiting groove is provided at the end of the lock body, and one end of the elastic reset member stops at the bottom of the limiting groove.

9. The faucet according to claim 1, characterized in that: One of the first end cover and the faucet body is installed with a Hall sensor, and the other is installed with an induction magnet.

10. The faucet according to claim 9, characterized in that: The first end cover is equipped with an induction magnet, and the faucet body is equipped with a Hall sensor; The first end cover is provided with a support column protruding from the end surface, the support column is provided with a mounting groove, and the induction magnet is installed in the mounting groove.

11. The faucet according to claim 10, characterized in that: The induction magnet is arc-shaped, and there are two support columns, which are spaced apart around the pivot axis of the first end cover, and the ends of the two support columns are provided with the mounting grooves which are open toward each other.

12. The faucet according to claim 1, characterized in that The first end cover is pivotally mounted on the faucet body around a pivot axis, and the body limiting portion is in an arc shape around the pivot axis.

13. The faucet according to claim 1, characterized in that: Also includes: A water distribution member is installed on the faucet body, and the water distribution member has a first passage and a second passage. The first water outlet pipe is connected to the third flow channel through the first passage, and the second water outlet pipe is connected to the fourth flow channel through the second passage.

14. The faucet according to claim 1, characterized in that: The second water outlet pipe is sleeved outside the first water outlet pipe.

15. A water purifier, characterized in that: include: The faucet as claimed in any one of claims 1, 13 and 14; A filtration system, wherein the filtration system has a raw water inlet and a clean water outlet; A heating system, wherein a water inlet of the heating system is connected to the clean water outlet; Wherein, the water outlet of the heating system is connected to the first inlet of the water mixing valve core and the inlet of the control valve core, and the clean water outlet is connected to the second inlet of the water mixing valve core.

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