Liquid dispenser device and washing device

Abstract

The present disclosure provides a liquid dispenser device and a washing device. The liquid dispenser device comprises: a liquid distribution box, wherein a liquid distribution cavity is formed inside the liquid distribution box, and first through holes are formed in the liquid distribution box; a liquid storage box, wherein a liquid storage cavity is formed inside the liquid storage box, the liquid storage box is at least partially located in the liquid distribution cavity and can slide relative to the liquid distribution box in a first direction, second through holes are formed in the liquid storage box, and the central axes of the second through holes are parallel to the first direction; liquid extraction connectors detachably connected to the liquid distribution box, wherein the liquid extraction connectors comprise tubular portions, first ends of the tubular portions are located outside the liquid distribution box, second ends of the tubular portions opposite to the first ends extend into the liquid distribution cavity from the first through holes, and the second ends of the tubular portions extend in the first direction and can be communicated with the second through holes; a liquid extraction pump located outside the liquid distribution box; liquid extraction tubes communicating the liquid extraction pump and the tubular portions; liquid return tubes communicating the liquid extraction pump and liquid inlets; and suction tubes located in the liquid storage cavity and provided with suction ports.

Description

Liquid dispensing device and washing device Cross-reference to Related Applications

[0001] The present disclosure claims priority to Chinese Patent Application No. 202422172031.7, filed on September 04, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the field of washing, and in particular, to a liquid dispensing device and a washing device. BACKGROUND

[0003] A washing machine with an automatic detergent dispensing function is configured with a liquid dispensing device, which can input a corresponding type of detergent into a washing drum according to requirements. The maintenance and replacement of the related liquid dispensing device is inconvenient. SUMMARY

[0004] The present disclosure provides a liquid dispensing device and a washing device to solve how to improve the convenience of maintenance and care of the liquid dispensing device.

[0005] The present disclosure provides a liquid dispensing device, which comprises a distribution box, an internal distribution cavity is formed in the distribution box, the distribution box is provided with a liquid inlet and a first liquid outlet which are in communication with the distribution cavity, wherein the distribution box is provided with a first through hole; a storage box, an internal storage cavity is formed in the storage box, at least part of the storage box is located in the distribution cavity, and the storage box can slide relative to the distribution box in a first direction, the storage box is provided with a second through hole, and a center axis of the second through hole is parallel to the first direction; a liquid suction connector which is detachably connected with the distribution box, the liquid suction connector comprises a tubular part, a first end of the tubular part is located outside the distribution box, a second end of the tubular part opposite to the first end extends into the distribution cavity through the first through hole, the second end of the tubular part extends in the first direction and can communicate with the second through hole; a liquid suction pump located outside the distribution box; a liquid suction pipe which communicates the liquid suction pump and the first end of the tubular part; a liquid return pipe which communicates the liquid suction pump and the liquid inlet; and a suction pipe located in the storage cavity, the suction pipe has opposite third and fourth ends, the third end communicates with the second through hole, the suction pipe extends from the third end to the fourth end towards a bottom surface of the storage cavity, and the fourth end has a suction port.

[0006] In some embodiments, the liquid suction connector further comprises a first connecting structure located on the outer periphery of the tubular part, and the first connecting structure is detachably fixed to the outer surface of the distribution box through a connecting piece.

[0007] In some embodiments, the outer surface of the liquid separation box is concave to form a first groove, and the inner surface of the liquid separation box is convex to form a first protrusion correspondingly; the first through hole is formed at the first groove, and the first connecting structure is detachably fixed in the first groove of the liquid separation box through the connecting piece.

[0008] In some embodiments, the inner surface of the liquid storage box is convex to form a first guide cylinder, and the second through hole is formed in the first guide cylinder; the second end of the tubular part can extend into the first guide cylinder, and / or the third end of the suction pipe is fixedly connected with the first guide cylinder.

[0009] In some embodiments, the suction pipe comprises a base, a first protrusion and a second tubular part, the first protrusion protrudes from a first surface of the base, the second tubular part protrudes from an outer surface of a side wall of the first protrusion, an included angle is formed between an extension direction of the first protrusion and an extension direction of the second tubular part, the extension direction of the second tubular part is towards a bottom surface of the liquid storage cavity, the suction pipe has a suction channel, the suction channel penetrates through the base, the first protrusion and the second tubular part, an end of the second tubular part towards the bottom surface of the liquid storage cavity is the fourth end, a suction port of the suction channel is formed at the fourth end; the first protrusion is sleeved outside the first guide cylinder, a second surface of the base opposite to the first surface is in contact with an outer circumferential part of the first guide cylinder on the liquid storage box, the third end is located at the second surface, a communication port of the suction channel is formed at the third end, and the communication port is in communication with the second through hole.

[0010] In some embodiments, the liquid storage box further comprises a one-way valve, the inner surface of the first guide cylinder is convex to form an annular positioning table, one end of the one-way valve is accommodated in the first guide cylinder and abuts against a bottom surface of the annular positioning table, the other end of the one-way valve is accommodated in the first protrusion, and the other end of the one-way valve abuts against an inner surface of the first protrusion or an inner surface of the second tubular part.

[0011] In some embodiments, the liquid dispensing device further comprises a Venturi tube fixedly connected with the liquid distribution box, the Venturi tube comprising a funnel structure and a Venturi tube body, the tube diameter of the Venturi tube body decreasing in the direction from one end to the other end of the Venturi tube body to form a converging section, a throat being formed at a position of the converging section close to the other end, and the converging section of the Venturi tube body close to the throat being connected with the funnel structure, the funnel structure having a maximum opening and forming a negative pressure suction port at the maximum opening; the liquid distribution box further being provided with a second liquid outlet, the second liquid outlet being in communication with the negative pressure suction port; the number of the first through holes, the second through holes, the liquid inlets, the liquid extraction connectors, the liquid extraction tubes, the liquid return tubes and the suction tubes being two, the tubular portions of the two liquid extraction connectors penetrating through the two first through holes respectively and being capable of communicating with the two second through holes respectively, the two liquid extraction tubes being in communication with the tubular portions and the liquid extraction pump respectively, the two liquid return tubes being in communication with the liquid extraction pump and the two liquid inlets respectively, and the two suction tubes being in communication with the two second through holes respectively; the inside of the liquid storage box forming a first cavity and a second cavity which are isolated from each other, the two second through holes being in communication with the first cavity and the second cavity respectively; the two liquid inlets comprising a first liquid inlet and a second liquid inlet which are spaced apart; wherein the distance between the second liquid outlet and the first liquid inlet is smaller than the distance between the second liquid outlet and the second liquid inlet; the first liquid inlet being in communication with the first cavity, and the first cavity being used for containing a main detergent.

[0012] In some embodiments, the liquid dispensing device further comprises a Venturi tube fixedly connected with the liquid distribution box, the Venturi tube comprising a negative pressure suction port and a Venturi tube body; the bottom of the liquid distribution box being further provided with a second liquid outlet, the second liquid outlet being in communication with the negative pressure suction port; the tube diameter of the Venturi tube body decreasing in the direction from one end to the other end of the Venturi tube body to form a converging section, a throat being formed at a position of the converging section close to the other end, and the converging section of the Venturi tube body close to the throat being connected with a funnel structure, the funnel structure having a maximum opening and forming the negative pressure suction port at the maximum opening; the outer surface of the bottom of the liquid distribution box being provided with a second guide cylinder having a bottom and a side, in the thickness direction of the bottom of the liquid distribution box, the second guide cylinder protruding from the bottom of the liquid distribution box, and in the direction perpendicular to the thickness direction of the bottom of the liquid distribution box, the second guide cylinder partially exceeding the bottom of the liquid distribution box; a second liquid outlet channel being formed in the second guide cylinder and being in communication with the liquid distribution cavity through the second liquid outlet; in the thickness direction of the bottom of the liquid distribution box, at least the part of the funnel structure close to the negative pressure suction port being located in the part of the second guide cylinder away from the liquid distribution box.

[0013] In some embodiments, at least one mounting cylinder and at least one positioning column are protruded outwardly from the outer circumference of the second guide cylinder on the outer surface of the liquid separation box, the Venturi tube further comprises a second connecting structure located at the side wing of the Venturi tube body, the second connecting structure is provided with a mounting hole and a positioning hole, the positioning column can pass through the positioning hole and make the mounting hole coaxial with the mounting cylinder, and the mounting hole is detachably connected with the mounting cylinder through a connecting piece.

[0014] In some embodiments, the liquid separation box comprises a liquid separation box body, a liquid separation box cover and a top cover; the liquid separation box body is fixedly connected with the liquid separation box cover, and the liquid separation box body and the liquid separation box cover enclose the liquid separation cavity; one side of the liquid separation box cover away from the liquid separation cavity is provided with a fourth protruding wall, the top cover is fixedly connected with the fourth protruding wall, and the fourth protruding wall and the top cover enclose the condensation cavity; and / or, one side of the top cover facing the liquid separation cavity is provided with a fourth protruding wall, the liquid separation box cover is fixedly connected with the fourth protruding wall, and the fourth protruding wall and the liquid separation box cover enclose the condensation cavity; wherein, the liquid separation box cover and the top cover further enclose the gas pressure balance channel, the gas pressure balance channel is communicated with the washing cylinder through a gas pressure balance pipe, the gas pressure balance channel is communicated with the condensation cavity, and is used for condensing the moisture in the hot and humid air entering the condensation cavity through the gas pressure balance pipe; in the first direction, the gas pressure balance channel is located on the side of the liquid separation box away from the liquid storage box, and the condensation cavity is located on the side of the liquid separation box cover close to the gas pressure balance channel; the part of the liquid separation box cover located in the condensation cavity is provided with a communication port, and the communication port communicates the condensation cavity and the liquid separation cavity.

[0015] In some embodiments, the fourth protruding wall comprises an outer peripheral protruding wall and an inner protruding wall, the outer peripheral protruding wall and the top cover enclose the condensation cavity, and / or the outer peripheral protruding wall and the liquid separation box cover enclose the condensation cavity; the inner protruding wall extends along a curve in the condensation cavity to form a condensation channel in the condensation cavity; the side of the outer peripheral protruding wall and / or the inner protruding wall adjacent to the condensation channel is provided with a plurality of heat exchange fins, and the plurality of heat exchange fins are arranged at intervals along the extension direction of the condensation channel.

[0016] In some embodiments, the condensation channel has multiple condensation channels, the projections of the multiple condensation channels on a first plane are different from the projection of the air pressure balancing channel on the first plane, the condensation channel with the smallest distance is the first condensation channel, the liquid distribution box cover further has a water inlet pipe, the water inlet pipe is in communication with the first condensation channel, wherein the first plane is a plane with the thickness direction of the liquid distribution box cover as the normal line; the number of communication ports on the portion of the liquid distribution box cover located in the first condensation channel is greater than the number of communication ports on the portion of the liquid distribution box cover located in the second condensation channel, the second condensation channel is the condensation channel other than the first condensation channel among the multiple condensation channels; and / or the multiple heat exchange fins are arranged at intervals along the extension direction of the second condensation channel, the second condensation channel is the condensation channel other than the first condensation channel among the multiple condensation channels.

[0017] In some embodiments, the liquid distribution box cover further has a third liquid outlet, the third liquid outlet is in communication with the first condensation channel.

[0018] In some embodiments, the outer surface of the side and / or bottom of the liquid distribution box has a pipeline fixing member for fixing a pipeline.

[0019] In some embodiments, the liquid storage box includes a liquid storage box body and a liquid storage box cover, the interior of the liquid storage box forms a first cavity and a second cavity which are isolated from each other, the liquid storage box body further has a first liquid inlet in communication with the first cavity and a second liquid inlet in communication with the second cavity; the liquid storage box cover can cover the first liquid inlet and the second liquid inlet at the same time; one side of the liquid storage box cover is rotatably connected with the liquid storage box body, and the rotation axis of the liquid storage box cover is perpendicular to the first direction and perpendicular to the vertical direction, the other side of the liquid storage box cover opposite to the one side has a chamfer.

[0020] In some embodiments, the liquid storage box further includes a magnetic float, the liquid distribution box further includes a magnetic field intensity sensor, the magnetic float is located in the liquid storage cavity, the magnetic field intensity sensor is fixed to the outer surface of the liquid distribution box, and the magnetic float is directly opposite to the magnetic field intensity sensor; the liquid storage box further has a limiting column and a pressing plate, the limiting column extends along the height direction of the liquid storage cavity, one end of the limiting column is fixed to the inner surface of the bottom of the liquid storage box, and the pressing plate is fixed to the other end of the limiting column, the magnetic float is located between the inner surface of the bottom of the liquid storage box and the pressing plate; wherein the limiting column has multiple limiting columns, and the multiple limiting columns are arranged at intervals around the magnetic float.

[0021] In some embodiments, the inner surface of the bottom of the liquid storage box is provided with a second groove, the second groove comprises a circular portion and a rectangular portion, and one end of the rectangular portion communicates with the circular portion, so that one long side of the rectangular portion is substantially tangent to the circular portion; the suction port is located in the rectangular portion and close to the other end of the rectangular portion, and at least part of the limiting column and the magnetic levitation sub are located in the circular portion.

[0022] In some embodiments, different portions of the second groove have different depths, and the end of the rectangular portion where the suction port is located is a portion with a greater depth in the second groove.

[0023] The present disclosure also provides a washing device, which comprises a housing forming a containing cavity, a washing drum located in the containing cavity, and a liquid feeding device as described in the above embodiments, which is located in the containing cavity and the first liquid outlet communicates with the washing drum; wherein the housing comprises a front panel and a liquid distribution box frame, the front panel is provided with a liquid storage box opening, the liquid storage box can be pulled out of the liquid distribution box through the liquid storage box opening; the front panel is further provided with a side wall recessed into the containing cavity at the liquid storage box opening, the side wall is provided with a hook and a connecting tab protruding to the liquid storage box opening, and the connecting tab is provided with a second mounting hole; the lower part of the liquid distribution box frame is provided with a first mounting hole, the front surface of the liquid storage box is provided with a third mounting hole, and the center axis of the first mounting hole, the center axis of the second mounting hole and the center axis of the third mounting hole are collinear; a connecting piece is sequentially arranged in the first mounting hole, the second mounting hole and the third mounting hole to fixedly connect the liquid distribution box frame, the front panel and the liquid storage box.

[0024] In some embodiments, the liquid storage box comprises a liquid storage box body and a handle plate, the handle plate is fixed to the liquid storage box body, the lower part of the handle plate protrudes from the liquid storage box body, and the handle plate and the liquid distribution box are located on both sides of the liquid distribution box frame; the surface of the lower part of the handle plate away from the liquid distribution box frame is provided with a handle slot, the surface of the lower part of the handle plate facing the liquid distribution box frame is provided with a buckle, the liquid distribution box frame is provided with a clamping groove, and the clamping groove and the first mounting hole are adjacently arranged on the liquid distribution box frame; the front surface of the liquid storage box is provided with an avoiding hole corresponding to the clamping groove; the depth direction of the clamping groove is parallel to the first direction, the buckle can be engaged with the clamping groove, and when the liquid storage box is pulled out of the liquid distribution box, the buckle is disengaged from the clamping groove.

[0025] The liquid dispensing device provided by the embodiment of the present disclosure comprises a liquid distribution box having a liquid distribution cavity and a liquid storage box having a liquid storage cavity, part of the liquid storage box is located inside the liquid distribution cavity and can move relative to the liquid distribution box in a first direction to form a drawer type structure, the liquid distribution cavity has a liquid inlet and a first liquid outlet, the liquid dispensing device further comprises a liquid suction connector, a liquid suction pump, a liquid suction pipe, a liquid return pipe and a suction pipe, the suction pipe is located in the liquid storage cavity and communicates with a second through hole, and an end of the suction pipe extending towards the bottom surface of the liquid storage cavity has a suction port, the liquid suction connector extends into the liquid distribution cavity through a first through hole and can extend into the second through hole, the liquid suction pipe communicates the liquid suction connector and the liquid suction pump, and the liquid return pipe communicates the liquid suction pump and the liquid inlet, so that the detergent in the liquid storage cavity can flow into the liquid distribution cavity. In addition, the liquid suction pump is located outside the liquid distribution box and detachably connected to the liquid distribution box through the liquid suction connector. By locating the liquid suction pump outside the liquid distribution box and detachably connecting the liquid suction pump to the liquid distribution box through the liquid suction connector and the liquid suction pipe, compared with the structure in which the shell of the liquid suction pump and the rear shell of the liquid distribution box are integrated, the liquid suction pump can be more conveniently detached in the case of needing to be repaired or replaced, thereby improving the convenience of maintenance and care of the liquid dispensing device. In addition, the liquid suction pump is arranged outside the liquid distribution box and connected to the liquid suction connector through the liquid suction pipe, so that the liquid suction pump can still be applied to the liquid distribution box when the shape or appearance of the liquid distribution box is changed, thereby improving the versatility of the liquid suction pump, and the liquid suction pipe is also exposed outside the liquid distribution box, so that a sensor can be arranged outside the liquid suction pipe, and the liquid dispensing device can realize more functions through the sensor. BRIEF DESCRIPTION OF DRAWINGS

[0026] FIG. 1 is a structural schematic diagram of a liquid dispensing device according to an embodiment of the present disclosure from a first perspective;

[0027] FIG. 2 is a structural schematic diagram of a liquid dispensing device according to an embodiment of the present disclosure from a second perspective;

[0028] FIG. 3 is a structural schematic diagram of a liquid dispensing device according to an embodiment of the present disclosure from a third perspective;

[0029] FIG. 4 is an assembly schematic diagram of a liquid suction connector and a liquid distribution box in a liquid dispensing device according to an embodiment of the present disclosure;

[0030] FIG. 5 is a structural schematic diagram of a liquid distribution box in a liquid dispensing device according to an embodiment of the present disclosure;

[0031] FIG. 6 is a sectional view of a suction pipe and a first guide cylinder in a liquid dispensing device according to an embodiment of the present disclosure;

[0032] FIG. 7 is a sectional view of a suction pipe and a one-way valve in a liquid dispensing device according to an embodiment of the present disclosure;

[0033] FIG. 8 is a structural schematic diagram of a suction pipe in a liquid dispensing device according to an embodiment of the present disclosure;

[0034] Fig. 9 is an assembly diagram of the liquid distribution box and the liquid storage box in the liquid delivery device according to an embodiment of the present disclosure;

[0035] Fig. 10 is an assembly diagram of the liquid distribution box and the Venturi tube in the liquid delivery device according to an embodiment of the present disclosure;

[0036] Fig. 11 is a structural diagram of the liquid distribution box in the liquid delivery device according to an embodiment of the present disclosure;

[0037] Fig. 12 is a structural diagram of the Venturi tube in the liquid delivery device according to an embodiment of the present disclosure;

[0038] Fig. 13 is an exploded view of the liquid distribution box in the liquid delivery device according to an embodiment of the present disclosure;

[0039] Fig. 14 is a structural diagram of the cover of the liquid distribution box in the liquid delivery device according to an embodiment of the present disclosure;

[0040] Fig. 15 is another structural diagram of the liquid distribution box in the liquid delivery device according to an embodiment of the present disclosure;

[0041] Fig. 16 is another structural diagram of the liquid storage box in the liquid delivery device according to an embodiment of the present disclosure;

[0042] Fig. 17 is another structural diagram of the liquid storage box in the liquid delivery device according to an embodiment of the present disclosure;

[0043] Fig. 18 is a structural diagram of a washing device according to an embodiment of the present disclosure;

[0044] Fig. 19 is an assembly diagram of the front panel, the liquid distribution box frame and the liquid distribution box in the washing device according to an embodiment of the present disclosure;

[0045] Fig. 20 is an assembly diagram of the hand grip plate, the liquid storage box and the liquid distribution box in the washing device according to an embodiment of the present disclosure.

[0046] Explanation of reference signs: 1, washing device; 10, liquid feeding device; 100, liquid separation box; 110, liquid separation cavity; 111, first liquid outlet; 120, first through hole; 140, first protrusion; 150, liquid inlet; 151, first liquid inlet; 152, second liquid inlet; 160, second liquid outlet; 161, second liquid outlet channel; 162, second guide cylinder; 163, mounting cylinder; 164, positioning column; 170, first groove; 180, third mounting hole; 181, liquid separation box body; 182, liquid separation box cover; 1821, fourth protruding wall; 183, top cover; 1822, peripheral protruding wall; 1823, inner protruding wall; 184, condensation cavity; 1842, condensation channel; 1846, first condensation channel; 1847, second condensation channel; 185, communication port; 186, air pressure balance channel; 187, air pressure balance pipe; 188, water inlet pipe; 189, third liquid outlet; 190, avoiding hole; 200, liquid storage box; 210, liquid storage cavity; 211, first cavity; 212, second cavity; 220, second through hole; 221, liquid storage box port; 230, first guide cylinder; 231, annular positioning table; 232, first protruding wall; 240, one-way valve; 242, second groove; 2421, circular part; 2422, rectangular part; 250, limiting protrusion; 251, magnetic float; 252, pressing plate; 253, limiting column; 261, liquid storage box body; 262, liquid storage box cover; 263, first liquid feeding port; 264, second liquid feeding port; 265, buckle plate; 2651, buckle groove; 2652, buckle; 300, liquid suction connector; 310, tubular part; 330, first connecting structure; 400, liquid suction pump; 500, liquid suction pipe; 600, liquid return pipe; 700, suction pipe; 710, base; 711, second protruding wall; 712, third protruding wall; 720, first protruding table; 730, second tubular part; 740, suction channel; 741, suction port; 800, Venturi tube; 810, negative pressure suction port; 820, Venturi tube main body; 821, second connecting structure; 822, mounting hole; 823, positioning hole; 830, funnel-shaped structure; 20, shell; 21, containing cavity; 22, front panel; 23, liquid separation box frame; 24, clamping hook; 25, connecting tab; 26, second mounting hole; 27, first mounting hole; 28, clamping groove; 30, washing cylinder. DETAILED DESCRIPTION

[0047] In order to make the objectives, technical solutions and advantages of the present disclosure clearer, the present disclosure is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and not used to limit the present disclosure.

[0048] In the specific embodiments described, various specific technical features can be combined in any suitable manner without contradiction, for example, different combinations of different specific technical features can form different embodiments and technical solutions. In order to avoid unnecessary repetition, various possible combinations of various specific technical features in the present disclosure are not described again.

[0049] In the following description, the terms "first", "second", and the like are merely used to distinguish different objects, and do not mean that the objects have the same or related meanings. It should be understood that the positional description "upper", "lower", "outer", "inner", "left", and "right" are the positions in the normal use state, and the "left" and "right" directions represent the left and right directions shown in the specific corresponding schematic diagram, which can be the left and right directions in the normal use state or can not be.

[0050] It should be noted that the terms "comprise", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "comprises a" does not exclude the presence of another identical element in the process, method, article or device including the element. The term "connected" includes direct connection and indirect connection unless otherwise specified.

[0051] In some specific embodiments, the liquid dispensing device can be used to hold a detergent, and in the washing process, a set type and a set amount of detergent can be dispensed in a set program step. The detergent can include a main washing agent, or a main washing agent and an auxiliary washing agent, which can be a softener. Generally, the liquid dispensing device mixes the detergent with water in advance, and then inputs the mixture into the washing drum of the washing machine.

[0052] In some embodiments, referring to FIG. 1 and FIG. 2, the liquid dispensing device 10 comprises a liquid distribution box 100, a liquid storage box 200, a liquid extraction connector 300, a liquid extraction pump 400, a liquid extraction pipe 500, a liquid return pipe 600 and a suction pipe 700. The liquid distribution box 100 has a liquid distribution cavity 110 formed inside, and the liquid distribution box 100 has a liquid inlet 150 and a first liquid outlet 111 which are in communication with the liquid distribution cavity 110. Detergent can enter the liquid distribution cavity 110 through the liquid inlet 150 and be outputted through the first liquid outlet 111. In some embodiments, the liquid distribution box 100 also has a water inlet through which water can enter the liquid distribution box 100. The detergent can be mixed with water in the liquid distribution box 100 and then outputted through the first liquid outlet 111, so that the detergent can be more fully contacted with the clothes in the washing drum of the washing machine. The liquid storage box 200 has a liquid storage cavity 210 formed inside, and the liquid storage cavity 210 is used to store detergent. The liquid storage box 200 is at least partially located in the liquid distribution cavity 110, and the liquid storage box 200 can slide relative to the liquid distribution box 100 in a first direction (the first direction is indicated by an arrow in FIG. 1 and FIG. 2), that is, the liquid storage box 200 and the liquid distribution box 100 form a drawer structure. When it is necessary to supplement the detergent in the liquid storage box 200, the liquid storage box 200 can be pulled out of the liquid distribution box 100, so as to facilitate supplementing the detergent in the liquid storage cavity 210. After the supplement of the detergent is completed, the liquid storage box 200 can be pushed into the liquid distribution box 100, so that the liquid distribution box 100 accommodates the liquid storage box 200, so as to reduce the occupied space of the liquid dispensing device 10. The liquid storage box 200 is provided with a second through hole 220, and the center axis of the second through hole 220 is parallel to the first direction. The liquid extraction connector 300 is detachably connected with the liquid distribution box 100. The liquid extraction connector 300 comprises a tubular portion 310, and the first end 311 of the tubular portion 310 is located outside the liquid distribution box 100. The second end 312 of the tubular portion 310 opposite to the first end 311 extends into the liquid distribution cavity 110 through the first through hole 120, and the second end 312 of the tubular portion 310 extends towards the second through hole 220 along the first direction and can communicate with the second through hole 220. In some embodiments, in the state that the liquid storage box 200 is pushed into the interior of the liquid distribution box 100, the second end 312 of the liquid extraction connector 300 can extend into the second through hole 220, so that the liquid extraction connector 300 communicates with the liquid storage cavity 210, and thus the liquid extraction connector 300 can extract the detergent in the liquid storage cavity 210 to the outside of the liquid distribution box 100. The liquid extraction connector 300 can be detachably connected with the liquid distribution box 100 in various ways. In some embodiments, the liquid extraction connector 300 can be detachably connected with the liquid distribution box 100 through a connecting structure. In other embodiments, the tubular portion 310 can be detachably connected with the liquid distribution box 100 through interference fit with the first through hole 120.

[0053] In combination with FIG. 2 and FIG. 3, the liquid pumping pump 400 is located outside the distribution box 100, the liquid pumping pipe 500 connects the liquid pumping pump 400 and the first end 311 of the tubular part 310, the liquid pumping pump 400 communicates with the liquid storage cavity 210 through the liquid pumping pipe 500 and the tubular part 310, so that the liquid pumping pump 400 can pump out the detergent in the liquid storage cavity 210, the liquid returning pipe 600 connects the liquid pumping pump 400 and the liquid inlet 150, and the liquid pumping pump 400 located outside the distribution box 100 can input the detergent into the distribution cavity 110 through the liquid returning pipe 600. By locating the liquid pumping pump 400 outside the distribution box 100 and detachably connecting the liquid pumping pump 400 with the distribution box 100 through the liquid pumping connector 300 and the liquid pumping pipe 500, compared with the structure that the shell of the liquid pumping pump 400 is integrated with the rear shell of the distribution box 100, the liquid pumping pump 400 can be more conveniently detached when the liquid pumping pump 400 needs to be repaired or replaced, thereby improving the convenience of repairing and maintaining the liquid feeding device 10. In addition, the liquid pumping pump 400 is located outside the distribution box 100 and connected with the liquid pumping connector 300 through the liquid pumping pipe 500, so that the liquid pumping pump 400 can still be applied to the changed distribution box 100 when the shape or appearance of the distribution box 100 is changed, thereby improving the versatility of the liquid pumping pump 400, and the liquid pumping pipe 500 is also exposed outside the distribution box 100, so that a sensor can be arranged outside the liquid pumping pipe 500, and the liquid feeding device 10 can realize more functions through the sensor. In some embodiments, the size or density of bubbles in the liquid pumping pipe 500 can be obtained through the light transmittance sensor, so as to realize the detection of the detergent amount in the liquid storage cavity 210. In another embodiment, the temperature of the detergent can be obtained through the temperature sensor.

[0054] As shown in FIG. 1, the suction pipe 700 is located in the liquid storage cavity 210, the suction pipe 700 has opposite third and fourth ends 701 and 702, the third end communicates with the second through hole 220, the suction pipe 700 (i.e. the body thereof) extends from the third end 701 to the fourth end 702 towards the bottom surface of the liquid storage cavity 210, and the fourth end 702 has a suction port. The detergent in the liquid storage cavity can be pumped out through the suction pipe 700, and the pumped-out detergent enters the tubular part 310.

[0055] It can be understood that the distribution box 100 also has a water inlet pipe (not shown in the figure), the liquid pumping pump 400 pumps out the detergent of a specific amount stored in the liquid storage cavity 210 through the liquid pumping pipe 150 and sends the detergent back to the distribution cavity 110 through the liquid returning pipe 600, the water inlet pipe supplies water to the distribution cavity 110, the detergent and water are mixed in the distribution cavity 110, and the mixture is sent to the washing drum through the first liquid outlet 111.

[0056] The liquid dispensing device provided by the embodiments of the present disclosure comprises a liquid distribution box having a liquid distribution cavity and a liquid storage box having a liquid storage cavity, part of the liquid storage box is located inside the liquid distribution cavity and can move relative to the liquid distribution box in a first direction to form a drawer type structure, the liquid distribution cavity has a liquid inlet and a first liquid outlet, the liquid dispensing device further comprises a liquid suction connector, a liquid suction pump, a liquid suction pipe, a liquid return pipe and a suction pipe, the suction pipe is located in the liquid storage cavity and communicates with a second through hole, and an end of the suction pipe extending towards the bottom surface of the liquid storage cavity has a suction port, the liquid suction connector extends into the liquid distribution cavity through a first through hole and can extend into the second through hole, the liquid suction pipe communicates the liquid suction connector and the liquid suction pump, and the liquid return pipe communicates the liquid suction pump and the liquid inlet, so that the detergent in the liquid storage cavity can flow into the liquid distribution cavity. In addition, the liquid suction pump is located outside the liquid distribution box and detachably connected to the liquid distribution box through the liquid suction connector. By locating the liquid suction pump outside the liquid distribution box and detachably connecting the liquid suction pump to the liquid distribution box through the liquid suction connector and the liquid suction pipe, compared with the structure in which the shell of the liquid suction pump and the rear shell of the liquid distribution box are integrated, the liquid suction pump can be more conveniently detached in the case of needing to be repaired or replaced, thereby improving the convenience of maintenance and care of the liquid dispensing device. In addition, the liquid suction pump is located outside the liquid distribution box and connected to the liquid suction connector through the liquid suction pipe, so that the liquid suction pump can still be applied to the changed liquid distribution box when the shape or appearance of the liquid distribution box is changed, thereby improving the versatility of the liquid suction pump, and the liquid suction pipe is also exposed outside the liquid distribution box so that a sensor can be provided outside the liquid suction pipe, and the liquid dispensing device can realize more functions through the sensor.

[0057] In some embodiments, as shown in FIG. 4, the liquid suction connector 300 further comprises a first connecting structure 330 on the outer periphery of the tubular portion 310, and the first connecting structure 330 is detachably fixed to the outer surface of the liquid distribution box 100 through a connecting piece. By providing the first connecting structure 330, more mounting space can be provided for the connecting piece, thereby making the liquid suction connector 300 more conveniently detachably connected to the liquid distribution box 100. In some embodiments, a through hole can be formed on the first connecting structure 330, the outer surface of the liquid distribution box 100 has a threaded hole corresponding to the through hole, and the connecting piece is a screw. By passing the screw through the through hole and screwing it into the threaded hole, the liquid suction connector 300 can be detachably connected to the liquid distribution box.

[0058] In some embodiments, as shown in FIG. 1 and FIG. 4, the outer surface of the distribution box 100 is concave to form the first groove 170, and the inner surface of the distribution box 100 is correspondingly convex to form the first protrusion 140. In some embodiments, the first groove 170 can be formed on the outer surface of the distribution box 100 by a mechanical processing process such as stamping, so that the first groove 170 can be formed without reducing the wall thickness of the distribution box 100, so that the distribution box 100 has sufficient structural strength. The first through hole 120 is provided at the first groove 170, and the first connecting structure 330 is detachably fixed in the first groove 170 of the distribution box 100 by the connecting piece. By accommodating the first connecting structure 330 in the first groove 170, the first connecting structure 330 and part of the tubular part 310 can be accommodated inside the first groove 170, so as to reduce the volume of the connecting joint 300 protruding outside the distribution box 100, thereby reducing the possibility of interference between other parts or structures of the liquid dispensing device 10 and the connecting joint 300. In addition, the outer surface of the distribution box 100 and the part connected with the first connecting structure 330 need to form a matching surface, which has a higher requirement for processing precision. If the entire outer surface of the distribution box 100 is used as the matching surface, the processing cost and difficulty will be increased. By setting the first groove 170 and detachably connecting the first connecting structure 330 with the inner surface of the first groove 170, the inner surface of the first groove 170 is used as the matching surface and the outer surface of the rest of the distribution box 100 is used as a non-matching surface, thereby reducing the processing cost and difficulty of the distribution box 100.

[0059] In some embodiments, as shown in FIG. 5, the inner surface of the liquid storage box 200 is convex to form the first guide cylinder 230, that is, the first guide cylinder 230 is located in the liquid storage cavity 210. The second through hole 220 is formed in the first guide cylinder 230, and the second end 312 of the tubular part 310 can extend into the first guide cylinder 230. The first guide cylinder 230 can provide guidance for the second end 312 of the tubular part 310, so that the second end 312 of the tubular part 310 can more reliably communicate with the second through hole 220.

[0060] In some embodiments, as shown in FIG. 6, the third end 701 of the suction pipe 700 is fixedly connected with the first guide cylinder 230. By setting the first guide cylinder 230 protruding from the inner surface of the liquid storage box 200, more space can be provided for the installation of the suction pipe 700, and the suction pipe 700 can more reliably communicate with the second through hole 220.

[0061] In some embodiments, as shown in FIGS. 6 and 8, the suction pipe 700 includes a base 710, a first protrusion 720 protruding from a first surface of the base 710, and a second tubular portion 730 disposed at an end of the first protrusion 720 away from the first surface, the first protrusion 720 and the second tubular portion 730 form an angle therebetween, i.e., the first protrusion 720 and the second tubular portion 730 are not parallel to each other, forming a structure similar to an L shape. The second tubular portion 730 extends toward the bottom surface of the liquid storage cavity 210, and a free end of the second tubular portion 730 faces the bottom surface of the liquid storage cavity 210. In addition, the first protrusion 720 is sleeved on the first guide cylinder 230. By making the first protrusion 720 and the second tubular portion 730 extend in different directions, the first protrusion 720 can be conveniently connected to the first guide cylinder 230, and the second tubular portion 730 can extend toward the bottom surface of the liquid storage cavity 210. In some embodiments, the second tubular portion 730 can have a stepped structure.

[0062] In some embodiments, the first protrusion 720 and the second tubular portion 730 form a stepped structure at the connection therebetween.

[0063] The suction pipe 700 further has a suction passage 740 extending through the base 710, the first protrusion 720, and the second tubular portion 730. An end of the second tubular portion 730 (a free end) facing the bottom surface of the liquid storage cavity 210 forms a fourth end 702. The suction passage 740 forms a suction port 741 at the fourth end 702 (the suction port 741 can be spaced apart from the bottom surface of the liquid storage cavity 210 to facilitate liquid suction, for example, by 2 mm). A third end 701 is located at a second surface of the base 710 opposite to the first surface (or the second surface of the base 710 opposite to the first surface is an end surface of the third end 701). A communication port 742 is formed at the third end 701 (specifically, at the end surface of the third end 701, i.e., the second surface of the base 710 opposite to the first surface). The suction pipe 700 is in communication with the second through hole 220 through the communication port 742.

[0064] The second surface of the base 710 contacts the outer circumferential portion of the first guide cylinder 230 on the liquid storage box 200, so that the third end 701 of the suction pipe 700 can stably abut against the inner surface of the liquid storage box 200. The specific structure of the abutment between the base 710 and the inner surface of the liquid storage box 200 will be described below in conjunction with FIGS. 7 and 8. The inner surface of the liquid storage box 200 is provided with a first convex wall 232 around the first guide cylinder 230, and the suction pipe includes a second convex wall 711 and a third convex wall 712, the size and shape of the first convex wall 232 match those of the second convex wall 711 (both the first convex wall 232 and the second convex wall 711 are cylindrical, but the size of the first convex wall 232 is slightly larger than that of the second convex wall 711), and the size and shape of the third convex wall 712 match those of the outer surface of the first guide cylinder 230 (both the third convex wall 712 and the first guide cylinder 230 are cylindrical, but the size of the third convex wall 712 is slightly larger than that of the first guide cylinder 230), so that in the assembled state of the suction pipe 700 and the liquid storage box 200, the first convex wall 232 is sleeved outside the second convex wall 711 and contacts the second surface, and the third convex wall 712 is sleeved outside the first guide cylinder 230. Through the force between the second convex wall 711 and the first guide cylinder 230, and the force between the third convex wall 712 and the first convex wall 232, the swing of the suction pipe 700 relative to the liquid storage box 200 is further limited, so that the connection between the suction pipe 700 and the first guide cylinder 230 is more reliable. In addition, the outer surface of the first guide cylinder 230, the second convex wall 711, the third convex wall 712 and the first convex wall 232 form a matching relationship, further improving the sealing between the suction pipe 700 and the first guide cylinder 230, and reducing the possibility of detergent leakage from the gap between the suction pipe 700 and the first guide cylinder 230.

[0065] In some embodiments, in conjunction with FIGS. 7 and 8, a sealing gasket 750 is further provided between the base 710 and the inner surface of the liquid storage box 200, the sealing gasket 750 abuts against the second convex wall 711, the third convex wall 712, and the part of the inner surface of the liquid storage box 200 surrounded by the first convex wall 232, so as to further improve the sealing between the base 710 and the first guide cylinder 230.

[0066] In some embodiments, in combination with FIG. 5 and FIG. 8, the second surface of the base 710 further has a base positioning hole 713, and the portion of the inner surface of the liquid storage box 200 surrounded by the first convex wall 232 in FIG. 7 further has a guide cylinder positioning column 233 protruding therefrom, which can extend into the base positioning hole 713. In the state that the guide positioning column 233 extends into the base positioning hole 713, as shown in FIG. 6, the second through hole 220 is coaxial with the suction passage 740 in the first convex platform 720. In addition, as shown in FIG. 7, the sealing gasket 750 further has a sealing gasket avoiding hole 751 which avoids the guide positioning column 233, and the guide cylinder positioning column 233 can extend into the base positioning hole 713 through the sealing gasket avoiding hole 751.

[0067] In some embodiments, as shown in FIG. 7, in the first direction, the outer surface of the liquid storage box 200 on the side with the second through hole 220 further has a limiting protrusion 250 protruding therefrom along the first direction, which can abut against the inner surface of the liquid distribution box 100 during the sliding process of the liquid storage box 200 relative to the liquid distribution box 100 in the first direction (when the liquid storage box 200 moves towards the inner surface of the liquid distribution box 100 provided with the first protrusion 140), so as to limit the movement stroke of the liquid storage box 200 and make the outer surface of the liquid storage box 200 have a certain spacing with the inner surface of the liquid distribution box 100, so that the liquid storage box 200 does not completely occupy all the space of the liquid distribution cavity 110, thereby reducing the possibility of the liquid storage box 200 blocking the liquid inlet 150 in FIG. 1. In addition, in the first direction, the length of the limiting protrusion 250 extending out of the outer surface of the liquid storage box 200 is greater than the spacing between the inner surface of the liquid distribution box 100 and the first liquid outlet 111, so as to reduce the possibility of the liquid storage box 200 blocking the first liquid outlet 111.

[0068] In some embodiments, as shown in FIG. 6 and FIG. 7, the liquid storage box 200 further comprises a one-way valve 240, the inner surface of the first guide cylinder 230 is provided with an annular positioning platform 231, one end of the one-way valve 240 is accommodated in the first guide cylinder 230 and abuts against the bottom surface of the annular positioning platform 231, the other end of the one-way valve 240 is accommodated in the first convex platform 720 and abuts against the inner surface of the first convex platform 720 or the inner surface of the second tubular part 730. The one-way valve 240 is used to make the detergent flow outwards from the liquid storage cavity 210 only, the inner surface of the first guide cylinder 230 and the inner surface of the first convex platform 720 circumferentially surround the one-way valve 240 to circumferentially position the one-way valve 240, one of the inner surface of the first convex platform 720 and the inner surface of the second tubular part 730 and the bottom surface of the annular positioning platform 231 are located on both sides of the one-way valve 240 in the axial direction of the one-way valve 240, so as to achieve the axial positioning of the one-way valve 240.

[0069] In some embodiments, as shown in FIGS. 10 and 12 in combination with FIGS. 9 and 11, the liquid dispensing device 10 further comprises a Venturi tube 800, and the liquid distribution box 100 further comprises a second liquid outlet 160, the Venturi tube 800 comprises a Venturi tube body 820 and a funnel structure 830, one end of the Venturi tube body 820 is a water inlet, the other end of the Venturi tube body 820 is a water outlet, the diameter of the Venturi tube body 820 decreases in the direction from the one end to the other end to form a converging section, a throat is formed at a position of the converging section close to the other end, the funnel structure 830 is connected to a portion of the converging section close to the throat, the end of the funnel structure 830 away from the Venturi tube body 820 has a maximum opening and forms a negative pressure suction port 810 at the maximum opening. A negative pressure is formed in the converging section during the flow of water from the water inlet to the water outlet, so that a suction force can be formed at the negative pressure suction port 810, the second liquid outlet 160 is in communication with the negative pressure suction port 810, so that the Venturi tube 800 can draw the detergent in the liquid distribution chamber 110 out through the second liquid outlet 160 and mix with water to form a multi-bubble washing mixture, and the washing mixture can be sprayed into the washing drum, thereby improving the washing efficiency. The detergent can include different types, by controlling the distance between the liquid inlet 150 and the second liquid outlet 160, the proportion of the detergent in the washing mixture can be controlled, and the related structures of the liquid inlet 150 and the second liquid outlet 160 will be described below.

[0070] As shown in FIGS. 2 and 9, the number of the first through holes 120, the second through holes 220, the liquid inlets 150, the liquid suction connectors 300, the liquid suction pipes 500, the liquid return pipes 600 and the suction pipes 700 is two, the tubular portions 310 of the two liquid suction connectors 300 pass through the two first through holes 120 respectively and can communicate with the two second through holes 220 respectively, the two liquid suction pipes 500 respectively communicate the two tubular portions 310 with the liquid pump 400, the two liquid return pipes 600 respectively communicate the liquid pump 400 with the two liquid inlets 150, and the two suction pipes 700 respectively communicate with the two second through holes 220. The two first through holes 120, the second through holes 220, the liquid inlets 150, the liquid suction connectors 300, the liquid suction pipes 500, the liquid return pipes 600 and the suction pipes 700 are respectively connected in communication to form two independent flow channels.

[0071] Correspondingly, the first cavity 211 and the second cavity 212 are formed in the liquid storage box 200 and are isolated from each other, that is, the liquid storage cavity 210 includes the first cavity 211 and the second cavity 212 which are isolated from each other, and the two second through holes 220 are respectively in communication with the first cavity 211 and the second cavity 212. In addition, the two liquid inlets 150 include the first liquid inlet 151 and the second liquid inlet 152, the first liquid inlet 151 is in communication with the first cavity 211 through the above-mentioned one flow passage, and the second liquid inlet 152 is in communication with the second cavity 212 through the above-mentioned another flow passage, so that the detergents in the first cavity 211 and the second cavity 212 can flow through two independent flow passages respectively and flow into the distribution cavity 110 through the first liquid inlet 151 and the second liquid inlet 152 respectively. The distance between the second liquid outlet 160 and the first liquid inlet 151 is smaller than the distance between the second liquid outlet 160 and the second liquid inlet 152. The first liquid inlet 151 is in communication with the first cavity 211, and the second liquid inlet 152 is in communication with the second cavity 212. The first cavity 211 is used to contain the main detergent, and the main function of the main detergent is to clean the clothes. The second cavity 212 is used to contain the auxiliary detergent, and the function of the auxiliary detergent is to assist in cleaning the clothes or to achieve other functions. In some embodiments, the auxiliary detergent can be a special detergent used to clean a specific type of dirt. In some embodiments, the auxiliary detergent can be a softener used to make the clothes more soft. The first cavity 211 and the first liquid inlet 151, and the second cavity 212 and the second liquid inlet 152 are connected through two independent liquid flow passages, so that the main detergent and the auxiliary detergent in the first cavity 211 and the second cavity 212 will not affect each other during the flow. In addition, by the distance between the first liquid inlet 151 and the second liquid outlet 160 being smaller than the distance between the second liquid inlet 152 and the second liquid outlet 160, the negative pressure suction port 810 can suck more main detergent, so that the proportion of the main detergent in the washing mixed liquid output by the Venturi tube 800 is increased, and the cleaning effect on the clothes is improved.

[0072] In some embodiments, the outer surface of the bottom of the distribution box 100 is convexly provided with a second guide cylinder, the second guide cylinder has no bottom and only has a side, one end of the second guide cylinder is in communication with the second liquid outlet 160 of the bottom of the distribution box 100, and the other end is in communication with the negative pressure suction port 810 of the Venturi tube 800.

[0073] In some embodiments, as shown in FIGS. 10 and 11, the outer surface of the bottom of the distribution box 100 is convexly provided with a second guide cylinder 162 having a bottom and a side, the second guide cylinder 162 protrudes from the outer surface of the bottom of the distribution box 100 in the thickness direction of the bottom of the distribution box 100 (i.e., the direction perpendicular to the bottom of the distribution box 100), and the second guide cylinder 162 partially exceeds the bottom of the distribution box 100 in the direction perpendicular to the thickness direction of the bottom of the distribution box 100 (i.e., the direction parallel to the bottom of the distribution box 100). A second liquid outlet passage 161 is formed in the second guide cylinder 162, and the second liquid outlet passage 161 communicates with the distribution cavity 110. In some embodiments, one end of the second liquid outlet passage 161 communicates with the distribution cavity 110 through the second liquid outlet 160. The second guide cylinder 162 not only protrudes from the distribution box 100 in the thickness direction of the bottom of the distribution box 100, but also laterally and partially exceeds the bottom of the distribution box 100 in the direction perpendicular to the thickness direction, so that the second guide cylinder 162 is not completely located directly below the second liquid outlet 160, but is shifted in the lateral direction away from the distribution box 100, so that the second guide cylinder 162 and the Venturi tube 800 can avoid other parts of the liquid dispensing device 10 on the bottom of the distribution box 100, which can be, for example, a pipeline or a wire harness.

[0074] The second guide cylinder 162 is shifted in the lateral direction away from the distribution box 100, and the second liquid outlet 160 is only provided in the overlapping area of the bottom of the distribution box 100 and the projection of the second guide cylinder 162 on the bottom of the distribution box 100, so the second liquid outlet 160 is not completely coaxial with the second guide cylinder 162. In the direction perpendicular to the thickness direction of the bottom of the distribution box 100, the second liquid outlet 160 is shifted closer to the side of the distribution box 100 provided with the liquid inlet 150 than the second guide cylinder 162. In addition, since the second guide cylinder 162 is also shifted in the lateral direction away from the distribution box 100 and towards the liquid suction pump 400 to partially exceed the bottom of the distribution box 100, a part of the second guide cylinder 162 cannot take the bottom of the distribution box 100 as the bottom, but has its own independent bottom.

[0075] In some embodiments, the second liquid outlet 160 can be provided in the side or bottom of the second guide cylinder 162, and in order to obtain a larger second liquid outlet, the second liquid outlet 160 can be provided in the side and bottom of the second guide cylinder 162. In this way, the communication area of the second liquid outlet 160 with the distribution cavity 110 is increased, so that more detergent can flow out of the distribution cavity 110 through the second liquid outlet 160.

[0076] In addition, in the thickness direction of the bottom of the liquid separation box 100, the part of the funnel structure 830 close to the negative pressure suction port 810 of the liquid separation box 100 is located in the part of the second guide cylinder 162 away from the liquid separation box 100, so that the communication between the negative pressure suction port 810 and the second guide cylinder 162 is more reliable.

[0077] In some embodiments, as shown in FIG. 11, the outer surface of the bottom of the liquid separation box 100 is further provided with a mounting plate 165, the mounting plate 165 extends in a direction perpendicular to the thickness direction of the bottom of the liquid separation box 100 (i.e. in a direction parallel to the bottom of the liquid separation box 100), and in the thickness direction of the bottom, a part of the second guide cylinder 162 protrudes from the outer surface of the bottom of the liquid separation box 100, and another part protrudes from the outer surface of the mounting plate 165. The second liquid outlet 160 is located at the bottom of the liquid separation box 100, and the outer surface of the mounting plate 165 forms at least part of the bottom of the second guide cylinder 162.

[0078] In some embodiments, in combination with FIG. 11 and FIG. 12, the Venturi tube 800 is fixedly connected with the liquid separation box 100. Specifically, at least one mounting cylinder 163 and at least one positioning column 164 are provided on the outer surface of the liquid separation box 100 outward of the outer periphery of the second guide cylinder 162, and the Venturi tube 800 further comprises a second connecting structure 821 located at the side wall of the Venturi tube body 820, the second connecting structure 821 is provided with a mounting hole 822 and a positioning hole 823, the positioning column 164 can pass through the positioning hole 823 and make the mounting hole 822 coaxial with the mounting cylinder 163, and the mounting hole 822 can be detachably connected with the mounting cylinder 163 through a connecting piece. By providing the second connecting structure 821 at the side wall of the Venturi tube body 820, the connecting piece can have a larger operation space.

[0079] In some embodiments, as shown in FIG. 13, the liquid distribution box 100 comprises a liquid distribution box body 181, a liquid distribution box cover 182 and a top cover 183, the liquid distribution box body 181 is fixedly connected with the liquid distribution box cover 182, and the liquid distribution box body 181 and the liquid distribution box cover 182 enclose a liquid distribution cavity 110. The side of the liquid distribution box cover 182 away from the liquid distribution cavity 110 is provided with a fourth convex wall 1821, and the fourth convex wall 1821 is fixedly connected with the top cover 183, and the fourth convex wall 1821 and the top cover 183 enclose a condensation cavity 184; and / or, the side of the top cover 183 facing the liquid distribution cavity 110 is provided with a fourth convex wall 1821, and the fourth convex wall 1821 is fixedly connected with the liquid distribution box cover 182, and the fourth convex wall 1821 and the liquid distribution box cover 182 enclose the condensation cavity 184. The liquid distribution box cover 182 also encloses the gas pressure balance channel 186 with the top cover 183, the gas pressure balance channel 186 is communicated with the washing drum through the gas pressure balance pipe 187, the gas pressure balance channel 186 is communicated with the condensation cavity 184, and is used for condensing the moisture in the hot and humid air entering the condensation cavity 184 through the gas pressure balance pipe 187. It should be noted that when water is injected into the washing drum, if the washing drum forms a closed cavity, the air pressure in the washing drum will continuously increase, which will eventually lead to difficulty or even inability to continue injecting water. In order to avoid this problem, the washing drum needs to be communicated with the space where the liquid delivery device 10 is located through the gas pressure balance pipe 187, but this will cause the humid air in the washing drum to enter the space where the liquid delivery device 10 is located. In the state of drying the washing drum, the hot and humid air enters the space where the liquid delivery device 10 is located through the gas pressure balance pipe 187, and in this state, the amount of water vapor in the air is larger. If the humid air directly enters the space where the liquid delivery device 10 is located, the water vapor in the humid air will form liquid droplets after condensation in the entire space, and if the liquid droplets adhere to the outer surface of the liquid storage box 200, these liquid droplets will drop to the ground or the user's body when the user pulls out the liquid storage box 200, which will reduce the user's experience.

[0080] By forming the condensation cavity 184 between the separation box cover 182 and the top cover 183, and making the air pressure balance pipe 187 communicate with the condensation cavity 184 through the air pressure balance channel 186, in the first direction (the first direction is indicated by the arrow in FIG. 13), the air pressure balance channel 186 is located on the side of the separation box 100 away from the liquid storage box 200, and the condensation cavity 184 is located on the side of the separation box cover 182 close to the air pressure balance channel 186. In some embodiments, the fourth convex wall 1821 is located on the side of the separation box cover 182 close to the air pressure balance channel 186, and / or the top cover 183 is located on the side of the separation box cover 182 close to the air pressure balance channel 186, that is, the condensation cavity 184 is located on the side away from the liquid storage box 200. In addition, the separation box cover 182 is provided with a communication port 185 inside the condensation cavity 184 (that is, the part of the separation box cover 182 inside the condensation cavity 184 is provided with the communication port 185), which communicates the condensation cavity 184 and the separation cavity 110, so that the water vapor in the humid air condenses into liquid droplets in the condensation cavity 184 and then falls into the separation cavity 110 through the communication port 185, and the condensation cavity 184 is located on the side away from the liquid storage box 200, so that the communication port 185 is away from the liquid storage box 200, and then the condensed liquid droplets fall into the separation cavity 110 from the position away from the liquid storage box 200, thereby reducing the possibility of the liquid droplets adhering to the surface of the liquid storage box 200, reducing the possibility of the liquid droplets falling on the ground or on the user when the user pulls out the liquid storage box 200, and improving the user's experience.

[0081] In some embodiments, as shown in FIG. 14, the fourth convex wall 1821 includes a peripheral convex wall 1822 and an internal convex wall 1823. The peripheral convex wall 1822 and the top cover 183 surround to form the condensation cavity 184, and / or the peripheral convex wall 1822 and the separation box cover 182 surround to form the condensation cavity 184. The internal convex wall 1823 extends along a curve in the condensation cavity 184 to form a condensation channel 1842 in the condensation cavity 184. By making the internal convex wall 1823 extend along a curve to form a condensation channel 1842 extending along a curve, the surface area of the outer surface of the condensation channel 1842 is increased, so that the condensation channel 1842 can be in more sufficient contact with the humid air entering the condensation cavity 184, thereby accelerating the condensation speed of the humid air. In addition, the side of the peripheral convex wall 1822 and / or the internal convex wall 2823 adjacent to the condensation channel 1842 is convexly provided with heat exchange fins 1845, and a plurality of heat exchange fins 1845 are arranged in the extension direction of the condensation channel, thereby further increasing the surface area of the outer surface of the condensation channel 1842 (or the contact area of the condensation channel 1842 with the humid air), and further accelerating the condensation speed of the humid air.

[0082] In some embodiments, as shown in FIG. 14, the condensation channels 1842 have projections on the first plane that are different from the projection of the air pressure balancing channel 186 on the first plane, the condensation channel 1842 with the smallest distance to the projection of the air pressure balancing channel 186 on the first plane is the first condensation channel 1846, i.e., the first condensation channel 1846 is the one closest to the air pressure balancing channel 186 among the condensation channels 1842, wherein the first plane is a plane with a normal in the thickness direction of the separation box cover 182. In some embodiments, the first plane is the plane on which the separation box cover 182 is located.

[0083] In addition, the separation box cover 182 also has a water inlet pipe 188 that communicates with the first condensation channel 1846, the number of communication openings 185 on the portion of the separation box cover 182 located in the first condensation channel 1846 is greater than the number of communication openings 185 on the portion of the separation box cover 182 located in the second condensation channel 1847. The second condensation channel 1847 is a condensation channel 1842 among the plurality of condensation channels 1842 other than the first condensation channel 1846. The water inlet pipe 188 can guide water into the first condensation channel 1846 and flow into the separation cavity 110 through the communication openings 185 located in the first condensation channel 1846, thereby mixing the detergent in the separation cavity 110 with water, i.e., the first condensation channel 1846 not only serves the condensation function, but also serves the water inlet function, by providing more communication openings 185 in the first condensation channel 1846, the water flowing in from the water inlet pipe 188 can flow into the separation cavity 110 from multiple different positions, thereby enabling the detergent to mix with water more fully.

[0084] In some embodiments, as shown in FIG. 14, the heat exchange fins 1845 are arranged in the second condensation channel 1847 and are arranged at intervals along the extension direction of the second condensation channel 1847, while no heat exchange fins 1845 are arranged in the first condensation channel 1846, thereby further improving the condensation capacity of the second condensation channel 1847 while reducing the blocking effect of the heat exchange fins 1845 on the water flow flowing into the first condensation channel 1846 from the water inlet pipe 188, thereby reducing the flow resistance of the liquid flow in the first condensation channel 1846. In some embodiments, the projection of the second condensation channel 1847 on the bottom of the separation cavity 110 is located in the first liquid outlet 111, thereby enabling the liquid droplets condensed in the second condensation channel 1847 to directly drip out of the separation cavity 110 through the first liquid outlet 111 after dripping into the separation cavity 110, thereby further reducing the possibility of the condensed water dripping into the separation cavity 110 splashing and falling on the outer surface of the liquid storage box 200.

[0085] In some embodiments, as shown in FIG. 14, the liquid distribution box cover 182 further has a third liquid outlet 189, which is in communication with the first condensing channel 1846, and the third liquid outlet 189 is capable of guiding water to the sealing rubber cup of the washing machine door. The water entering the first condensing channel 1846 through the water inlet pipe 188 can flow out of the third liquid outlet 189 and wash the foam adhered to the sealing rubber cup of the washing machine door.

[0086] In some embodiments, as shown in FIG. 15, the outer surface of the side and / or bottom of the liquid distribution box 100 has a pipe fixing member 193, through which the pipe of the liquid dispensing device 10 and the washing machine can be fixed to the outer surface of the liquid distribution box 100.

[0087] In some embodiments, as shown in FIG. 16, the liquid storage box 200 includes a liquid storage box body 261 and a liquid storage box cover 262, and the inside of the liquid storage box 200 forms a first cavity 211 and a second cavity 212 that are isolated from each other, and the first cavity 211 and the second cavity 212 can respectively hold different types of detergents. The liquid storage box body 261 further has a first liquid inlet 263 in communication with the first cavity 211 and a second liquid inlet 264 in communication with the second cavity 212, and the user can supplement the corresponding type of detergent into the first cavity 211 and the second cavity 212 through the first liquid inlet 263 and the second liquid inlet 264, respectively.

[0088] One side of the liquid storage box cover 262 is rotatably connected to the liquid storage box body 261, and the rotation axis of the liquid storage box cover 262 is perpendicular to the first direction and perpendicular to the vertical direction. Through the rotation of the liquid storage box cover 262 relative to the liquid storage box body 261, the liquid storage box cover 262 can cover or open the first liquid inlet 263 and the second liquid inlet 264. Further, the liquid storage box cover 262 can simultaneously cover the first liquid inlet 263 and the second liquid inlet 264, i.e., the liquid storage box cover 262 is a structure capable of covering the first liquid inlet 263 and the second liquid inlet 264, so that the opening or closing of the first liquid inlet 263 and the second liquid inlet 264 can be simultaneously controlled through the rotation of the liquid storage box cover 262, thereby improving the operation convenience of the liquid storage box cover 262.

[0089] In addition, the other side of the liquid storage box cover 262 opposite to the side connected to the liquid storage box body 261 has a chamfer 266, thereby reducing the possibility of motion interference between the liquid storage box cover 262 and the liquid storage box body 261.

[0090] In some embodiments, as shown in FIG. 17, the liquid storage box 200 further comprises a magnetic float 251, and the liquid distribution box 100 further comprises a magnetic field intensity sensor, the magnetic float 251 is located in the liquid storage cavity 210, the magnetic field intensity sensor is fixed to the outer surface of the liquid distribution box 100, the magnetic float 251 is opposite to the magnetic field intensity sensor, and the magnetic float 251 can float with the liquid level of the detergent in the liquid storage cavity 210. The more the amount of the detergent, the higher the liquid level of the detergent, and the farther the magnetic float 251 is from the magnetic field intensity sensor. The less the amount of the detergent, the lower the liquid level of the detergent, and the closer the magnetic float 251 is to the magnetic field intensity sensor. In other words, the amount of the detergent is in a negative correlation with the magnetic field intensity obtained by the magnetic field intensity sensor, and the magnetic field intensity obtained by the magnetic field intensity sensor can determine the amount of the detergent.

[0091] In addition, the liquid storage box 200 further comprises a limiting column 253 and a pressing plate 252, the limiting column 253 extends along the height direction of the liquid storage cavity 210, one end of the limiting column 253 is fixed to the inner surface of the bottom of the liquid storage box 200, and the pressing plate 252 is fixed to the other end of the limiting column 253 opposite to the one end. The magnetic float 251 is located between the inner surface of the bottom of the liquid storage box 200 and the pressing plate 252, and the inner surface and the pressing plate 252 limit the magnetic float 251 in the height direction of the liquid storage cavity 210.

[0092] In addition, the limiting column 253 is a plurality of limiting columns 253, and the plurality of limiting columns 253 are arranged at intervals around the outside of the magnetic float 251, so that the plurality of limiting columns 253 can more reliably position the magnetic float 251 in the circumferential direction, so that the displacement of the magnetic float 251 in the direction perpendicular to the height direction is smaller, and the measurement of the amount of the detergent is more accurate.

[0093] In some embodiments, as shown in FIG. 17, the inner surface of the bottom of the liquid storage box 200 is provided with a second groove 242, and the second groove 242 comprises a circular portion 2421 and a rectangular portion 2422. On the inner surface, the contour of the circular portion 2421 is circular, the contour of the rectangular portion 2422 is rectangular, one end of the rectangular portion 2422 communicates with the circular portion 2421, and one long side of the rectangular portion 2422 is substantially tangent to the circular portion 2421, so that the rectangular portion 2422 and the circular portion 2421 are smoothly transitioned, and the flow resistance between the rectangular portion 2422 and the circular portion 2421 is reduced.

[0094] The suction port 741 is located in the rectangular portion 2422 and close to the other end of the rectangular portion 2422 opposite to the end communicating with the circular portion 2421, i.e. the end of the second groove 242 accommodates the suction port 741 of the suction pipe 700, so that the suction port 741 is located at a lower position in the liquid storage cavity 210, further facilitating the suction port 741 to more fully suck the detergent. At least part of the limiting column 253 and the magnetic float 251 is located in the circular portion 2421, and the bottom of the limiting column 253 and the magnetic float 251 is accommodated through the circular portion 2421, so that the magnetic float 251 can still measure the remaining amount of the detergent in the state that the liquid surface of the detergent is lower than the bottom surface of the liquid storage cavity 210 and the detergent is all accommodated in the second groove 242. In some embodiments, different portions of the second groove 242 can have different depths, and the end of the rectangular portion 2422 where the suction port 741 is located can be a lower portion (i.e. a portion with a larger depth) of the second groove 242, thereby reducing the residue of the detergent in the liquid storage cavity.

[0095] The embodiments of the present disclosure also provide a washing device, which can be a washing machine for washing clothes, for example, or a dishwasher for washing tableware, for example. For the convenience of description, the washing device is described as a washing machine below.

[0096] In some embodiments, as shown in FIG. 18, the washing device 1 includes a housing 20, a washing drum 30 and a liquid feeding device 10 as shown in any one of FIGS. 1 to 17, the housing 20 has a containing cavity 21 therein, the washing drum 30 is located in the containing cavity 21, and the liquid feeding device 10 is also located in the containing cavity 21, and the first liquid outlet 111 communicates with the washing drum 30, so that the liquid feeding device 10 can input the detergent into the washing drum 30.

[0097] The housing 20 includes a front panel 22 and a liquid distribution box frame 23, the front panel 22 is provided with a liquid storage box opening 221, and the liquid storage box 200 can be pulled out of the liquid distribution box 100 through the liquid storage box opening 221, so as to facilitate operation when it is necessary to supplement the detergent in the liquid storage box 200.

[0098] The front panel 22 is further provided with a side wall recessed into the containing cavity 21 at the liquid storage box opening 221, the side wall is provided with a clamping hook 24 and a connecting tab 25 protruding to the liquid storage box opening 221, the connecting tab 25 is provided with a second mounting hole 26. In addition, the lower part of the liquid storage box frame 23 is provided with a first mounting hole 27, and the front surface of the liquid storage box 100 is provided with a third mounting hole 180. The clamping hook 24 is used for limiting the liquid storage box frame 23, and the preliminary positioning of the liquid storage box frame 23 can be realized by abutting the liquid storage box frame 23 and the clamping hook 24. At this time, the center axis of the first mounting hole 27, the center axis of the second mounting hole 26 and the center axis of the third mounting hole 180 are collinear, and the connecting piece is sequentially arranged in the first mounting hole 27, the second mounting hole 26 and the third mounting hole 180 to fixedly connect the liquid storage box frame 23, the front panel 22 and the liquid storage box 100, that is, the liquid storage box frame 23, the front panel 22 and the liquid storage box 100 are fixedly connected by the connecting piece at the same time, and the steps required for assembling the liquid storage box frame 23, the front panel 22 and the liquid storage box 100 are reduced.

[0099] In some embodiments, as shown in FIG. 20 in combination with FIGS. 16 and 19, the liquid storage box 200 includes a liquid storage box body 261 and a hand holding plate 265, the hand holding plate 265 is fixed to the liquid storage box body 261, the lower part of the hand holding plate 265 protrudes from the liquid storage box body 261, and the hand holding plate 265 and the liquid storage box 100 are located on both sides of the liquid storage box frame 23. In addition, the lower part of the hand holding plate 265 away from the liquid storage box frame 23 is provided with a hand holding groove 2651, thereby facilitating the user to pull out the liquid storage box 200. The lower part of the hand holding plate 265 facing the liquid storage box frame 23 is provided with a clamping buckle 2652, the liquid storage box frame 23 is provided with a clamping groove 28, the clamping groove 28 is distributed adjacent to the first mounting hole 27 (in the left-right direction, that is, perpendicular to the first direction and the thickness direction of the bottom of the liquid storage box 100), and the front surface of the liquid storage box 100 is provided with an avoiding hole 190 corresponding to the clamping groove 28, thereby reducing the possibility of interference between the clamping buckle 2652 and the liquid storage box 100. In addition, the depth direction of the clamping groove 28 is parallel to the first direction, during the process of pushing the liquid storage box 200 into the liquid storage box 100, the clamping buckle 2652 can be clamped with the clamping groove 28, thereby reducing the possibility of the liquid storage box 200 accidentally coming out of the liquid storage box 100 under the action of external disturbance, which may be caused by the vibration of the washing machine, and when the liquid storage box 200 is pulled out of the liquid storage box 100, the clamping buckle 2652 is separated from the clamping groove 28.

[0100] The above only describes the preferred embodiments of the present disclosure and is not intended to limit the protection scope of the present disclosure.

Claims

1. A liquid dispensing device (10) characterized by, The liquid delivery device (10) comprises: a liquid distribution box (100) having a liquid distribution cavity (110) formed therein, the liquid distribution box (100) being provided with a liquid inlet (150) and a first liquid outlet (111) in communication with the liquid distribution cavity (110), wherein the liquid distribution box (100) is further provided with a first through hole (120); a liquid storage box (200) having a liquid storage cavity (210) formed therein, the liquid storage box (200) being at least partially located in the liquid distribution cavity (110) and being capable of sliding relative to the liquid distribution box (100) in a first direction, the liquid storage box (200) being provided with a second through hole (220) having a central axis parallel to the first direction; a liquid suction connector (300) detachably connected to the liquid distribution box (100), the liquid suction connector (300) comprising a tubular portion (310), a first end (311) of the tubular portion (310) being located outside the liquid distribution box (100), a second end (312) of the tubular portion (310) opposite to the first end (311) extending into the liquid distribution cavity (110) through the first through hole (120), the second end (312) of the tubular portion (310) extending in the first direction and being capable of communicating with the second through hole (220); a liquid suction pump (400) located outside the liquid distribution box (100); a liquid suction pipe (500) connecting the liquid suction pump (400) and the first end (311) of the tubular portion (310); a liquid return pipe (600) connecting the liquid suction pump (400) and the liquid inlet (150); and a suction pipe (700) located in the liquid storage cavity (210), the suction pipe (700) having opposite third and fourth ends (701, 702), the third end (701) being in communication with the second through hole (220), the suction pipe (700) extending from the third end (701) to the fourth end (702) towards a bottom surface of the liquid storage cavity (210), the fourth end (702) being provided with a suction port (741).

2. The liquid dispensing device (10) according to claim 1, characterized in that The liquid suction connector (300) further comprises a first connecting structure (330) located on the outer periphery of the tubular portion (310), the first connecting structure (330) being detachably fixed to the outer surface of the liquid distribution box (100) by a connecting member.

3. The liquid dispensing device (10) according to claim 2, characterized in that The outer surface of the liquid distribution box (100) is concave to form a first groove (170), and the inner surface of the liquid distribution box (100) is convex to form a first protrusion (140) correspondingly, the first through hole (120) being formed in the first groove (170), and the first connecting structure (330) being detachably fixed in the first groove (170) of the liquid distribution box by the connecting member.

4. The liquid dosing device (10) according to any one of claims 1 to 3, characterized in that The inner surface of the liquid storage box (200) is provided with a first guide cylinder (230), the first guide cylinder (230) forming the second through hole (220) therein; The second end (312) of the tubular part (310) can extend into the first guide cylinder (230), and / or the third end (701) of the suction pipe (700) is fixedly connected with the first guide cylinder (230).

5. The liquid dispensing device (10) according to claim 4, characterized in that The suction pipe (700) comprises a base (710), a first boss (720) protruding from a first surface of the base (710), and a second tubular part (730) protruding from an outer surface of a side wall of the first boss (720), an angle is formed between an extension direction of the first boss (720) and an extension direction of the second tubular part (730), the extension direction of the second tubular part (730) is towards a bottom surface of the liquid storage cavity (110), the suction pipe (700) has a suction passage (740) therein, the suction passage (740) extends through the base (710), the first boss (720) and the second tubular part (730), an end of the second tubular part (730) towards the bottom surface of the liquid storage cavity (210) is the fourth end (702), a suction port (741) of the suction passage is formed at the fourth end (702); The first boss (720) is sleeved outside the first guide cylinder (230), a second surface of the base (710) opposite to the first surface is in contact with an outer peripheral part of the first guide cylinder (230) on the liquid storage box, the third end (701) is located at the second surface, a communication port (742) of the suction passage (740) is formed at the third end (701), the communication port (742) is in communication with the second through hole (220).

6. The liquid dispensing device (10) according to claim 5, characterized in that The liquid storage box (200) further comprises a one-way valve (240), An inner surface of the first guide cylinder (230) is convexly provided with an annular positioning table (231), one end of the one-way valve is accommodated in the first guide cylinder (230) and abuts against a bottom surface of the annular positioning table (231), the other end of the one-way valve (240) is accommodated in the first boss (720), the other end of the one-way valve (240) abuts against an inner surface of the first boss (720) or an inner surface of the second tubular part (730).

7. The liquid dispensing device (10) according to any one of claims 1 to 6, characterized in that The liquid delivery device (10) further comprises a Venturi tube (800), the Venturi tube (800) is fixedly connected with the liquid distribution box (100), the Venturi tube (800) comprises a funnel structure (830) and a Venturi tube body (820), a pipe diameter of the Venturi tube body (820) decreases in an extension direction from one end to the other end of the Venturi tube body (820) to form a converging section, a throat is formed at a position of the converging section close to the other end, a part of the converging section of the Venturi tube body (820) close to the throat is connected with the funnel structure (830), the funnel structure (830) has a maximum opening and a negative pressure suction port (810) is formed at the maximum opening; The liquid distribution box (100) is further provided with a second liquid outlet (160) in communication with the negative pressure suction port (810); The first through hole (120), the second through hole (220), the liquid inlet (150), the liquid suction connector (300), the liquid suction pipe (500), the liquid return pipe (600), and the suction pipe (700) are all two in number, the tubular portions (310) of the two liquid suction connectors (300) pass through the two first through holes (120) and can respectively communicate with the two second through holes (220), the two liquid suction pipes (500) respectively communicate the two tubular portions (310) and the liquid suction pump (400), the two liquid return pipes (600) respectively communicate the liquid suction pump (400) and the two liquid inlets (150), and the two suction pipes (700) respectively communicate with the two second through holes (220); The liquid storage box (200) is internally formed with a first cavity (211) and a second cavity (212) that are isolated from each other, and the two second through holes (220) respectively communicate with the first cavity (211) and the second cavity (212); The two liquid inlets (150) include a first liquid inlet (151) and a second liquid inlet (152) that are spaced apart; The distance between the second liquid outlet (160) and the first liquid inlet (151) is less than the distance between the second liquid outlet (160) and the second liquid inlet (152); the first liquid inlet (151) communicates with the first cavity (211), and the first cavity (211) is used for containing a main detergent.

8. The liquid dispensing device (10) according to any one of claims 1 to 6, characterized in that The liquid distribution device (10) further comprises a Venturi tube (800) fixedly connected with the liquid distribution box (100), and the Venturi tube (800) comprises a negative pressure suction port (810) and a Venturi tube body (820); The bottom of the liquid distribution box (100) is further provided with a second liquid outlet (160) in communication with the negative pressure suction port (810); The diameter of the Venturi tube body (820) decreases in the direction in which the Venturi tube body (820) extends from one end to the other end, thereby forming a converging section, a throat is formed at a position of the converging section close to the other end, and a funnel-shaped structure (830) is connected to the part of the converging section of the Venturi tube body (820) close to the throat, the funnel-shaped structure (830) has a maximum opening, and the negative pressure suction port (810) is formed at the maximum opening; The outer surface of the bottom of the liquid separation box (100) is convexly provided with a second guide cylinder (162) having a bottom and a side, the second guide cylinder (162) protrudes from the bottom of the liquid separation box (100) in the thickness direction of the bottom of the liquid separation box (100), and the second guide cylinder (162) partially exceeds the bottom of the liquid separation box (100) in the direction perpendicular to the thickness direction of the bottom of the liquid separation box (100); the second guide cylinder (162) is formed with a second liquid outlet channel (161) in communication with the liquid separation cavity (110) through the second liquid outlet (160); in the thickness direction of the bottom of the liquid separation box (100), at least the part of the funnel-shaped structure (830) close to the negative pressure suction port (810) is located in the part of the second liquid outlet channel (161) away from the liquid separation box (100).

9. The liquid dispensing device (10) according to claim 8, characterized in that At least one mounting cylinder (163) and at least one positioning column (164) are convexly provided on the outer surface of the liquid separation box (100) and outside the outer periphery of the second guide cylinder (162), the Venturi tube (800) further comprises a second connecting structure (821) located on the side wing of the Venturi tube body (820), the second connecting structure (821) is provided with a mounting hole (822) and a positioning hole (823), the positioning column (164) passes through the positioning hole (823) and makes the mounting hole (822) coaxial with the mounting cylinder, and the mounting hole (822) is detachably connected with the mounting cylinder (163) through a connecting piece.

10. The liquid dispensing device (10) according to any one of claims 1 to 9, characterized in that The liquid separation box (100) comprises a liquid separation box body (181), a liquid separation box cover (182) and a top cover (183); The liquid separation box body (181) and the liquid separation box cover (182) are fixedly connected, and the liquid separation box body (181) and the liquid separation box cover (182) surround the liquid separation cavity (110); The side of the liquid separation box cover (182) away from the liquid separation cavity is provided with a fourth convex wall (1821), the top cover (183) is fixedly connected with the fourth convex wall (1821), and the fourth convex wall (1821) and the top cover (183) surround the condensation cavity (184); and / or, the side of the top cover (183) facing the liquid separation cavity (110) is provided with a fourth convex wall (1821), the liquid separation box cover is fixedly connected with the fourth convex wall (1821), and the fourth convex wall (1821) and the liquid separation box cover (182) surround the condensation cavity (184); The liquid distribution box cover (182) further forms an air pressure balance channel (186) with the top cover (183), the air pressure balance channel (186) can communicate with the washing drum through an air pressure balance pipe (187), the air pressure balance channel (186) communicates with the condensation cavity (184), and is used for condensing water in the wet hot air entering the condensation cavity (184) through the air pressure balance pipe (187); in the first direction, the air pressure balance channel (186) is located on the side of the liquid distribution box (100) away from the liquid storage box (200), and the condensation cavity (184) is located on the side of the liquid distribution box cover (182) close to the air pressure balance channel (186); The part of the liquid distribution box cover located in the condensation cavity (184) is provided with a communication port (185), and the communication port (185) communicates the condensation cavity (184) and the liquid distribution cavity (110).

11. The liquid dispensing device (10) according to claim 10, characterized in that The fourth convex wall (1821) comprises a peripheral convex wall (1822) and an internal convex wall (1823), the peripheral convex wall (1822) forms the condensation cavity (184) with the top cover (183), and / or the peripheral convex wall (1822) forms the condensation cavity (184) with the liquid distribution box cover (182); The internal convex wall (1823) extends along a curve in the condensation cavity (184), forming a condensation channel (1842) in the condensation cavity; The side of the peripheral convex wall (1822) and / or the internal convex wall (1823) adjacent to the condensation channel (1842) is provided with a plurality of heat exchange fins (1845), and a plurality of the heat exchange fins (1845) are arranged at intervals along the extension direction of the condensation channel (1842).

12. The liquid dispensing device (10) according to claim 11, characterized in that There are a plurality of condensation channels (1842), the projections of the plurality of condensation channels (1842) on a first plane are different from the projection of the air pressure balance channel (186) on the first plane, the condensation channel (1842) with the smallest distance is a first condensation channel (1846), and the liquid distribution box cover (183) further has a water inlet pipe (188) communicating with the first condensation channel (1846), wherein the first plane is a plane with the thickness direction of the liquid distribution box cover (183) as the normal line; The number of the communication ports (185) on the part of the liquid distribution box cover (183) located in the first condensation channel (1846) is greater than the number of the communication ports (185) on the part of the liquid distribution box cover located in the second condensation channel (1847), and the second condensation channel (1847) is the condensation channel (1842) other than the first condensation channel (1846) among the plurality of condensation channels (1842); and / or, a plurality of the heat exchange fins (1845) are arranged at intervals along the extension direction of the second condensation channel (1847), and the second condensation channel (1847) is the condensation channel (1842) other than the first condensation channel (1846) among the plurality of condensation channels (1842).

13. The liquid dispensing device of claim 12, wherein, The liquid distribution box cover (182) further has a third liquid outlet (189) in communication with the first condensation channel (1846).

14. The liquid dispensing device (10) according to any one of claims 1 to 13, characterized in that The outer surface of the side and / or bottom of the liquid distribution box (100) has a pipeline fixing member (193) for fixing a pipeline.

15. The liquid dispensing device (10) according to any one of claims 1 to 14, characterized in that The liquid storage box (200) comprises a liquid storage box body (261) and a liquid storage box cover (262), and the inside of the liquid storage box (200) forms a first cavity (211) and a second cavity (212) isolated from each other, the liquid storage box body (261) further has a first liquid inlet (263) in communication with the first cavity (211) and a second liquid inlet (264) in communication with the second cavity (212); The liquid storage box cover (262) can cover the first liquid inlet (263) and the second liquid inlet (264) at the same time; One side of the liquid storage box cover (262) is rotatably connected with the liquid storage box body (261), and the rotation axis of the liquid storage box cover is perpendicular to the first direction and perpendicular to the vertical direction, and the other side opposite to the one side of the liquid storage box cover has a chamfer (266).

16. The liquid dispensing device (10) according to any one of claims 1 to 15, characterized in that The liquid storage box (200) further comprises a magnetic float (251), and the liquid distribution box (100) further comprises a magnetic field intensity sensor, the magnetic float (251) is located in the liquid storage cavity (210), the magnetic field intensity sensor is fixed to the outer surface of the liquid distribution box (100), and the magnetic float (251) faces the magnetic field intensity sensor; The liquid storage box (200) further has a limiting column (253) and a pressing plate (252), the limiting column (253) extends along the height direction of the liquid storage cavity (210), one end of the limiting column (253) is fixed to the inner surface of the bottom of the liquid storage box, and the pressing plate (252) is fixed to the other end of the limiting column (253), and the magnetic float (251) is located between the inner surface of the bottom of the liquid storage box (200) and the pressing plate (252); The limiting column (253) has a plurality of limiting columns (253) arranged at intervals around the magnetic float (251).

17. The liquid dispensing device of claim 16, wherein, An inner surface of a bottom of the liquid storage box (200) is provided with a second groove (242), the second groove (242) comprises a circular portion (2421) and a rectangular portion (2422), and one end of the rectangular portion (2422) communicates with the circular portion (2421) so that one long side of the rectangular portion (2422) is substantially tangent to the circular portion; The suction port (741) is located in the rectangular portion (2422) and close to the other end of the rectangular portion (2422), and at least part of the limiting column (253) and the magnetic float (251) are located in the circular portion (2421).

18. The liquid dispensing apparatus of claim 17, wherein, Different portions of the second groove (242) have different depths, and the end of the rectangular portion (2422) where the suction port (741) is located is a portion with a greater depth in the second groove (242).

19. A washing apparatus (1) characterized by, The washing device (1) comprises: a housing (20) forming a containing cavity (21); a washing drum (30) located in the containing cavity (21); the liquid delivery device (10) as claimed in any one of claims 1 to 18 is located in the containing cavity (21), and the first liquid outlet (111) communicates with the washing drum (30); The housing (20) comprises a front panel (22) and a liquid distribution box frame (23), the front panel (22) is provided with a liquid storage box opening (221), and the liquid storage box (200) can be pulled out of the liquid distribution box (100) through the liquid storage box opening (221); The front panel (22) is further provided with a side wall recessed into the containing cavity (21) at the liquid storage box opening (221), the side wall is provided with a hook (24) and a connecting tab (25) protruding to the liquid storage box opening (221), and the connecting tab (25) is provided with a second mounting hole (26); The lower part of the liquid distribution box frame (23) is provided with a first mounting hole (27), the front surface of the liquid distribution box (100) is provided with a third mounting hole (180), the center axis of the first mounting hole (27), the center axis of the second mounting hole (26) and the center axis of the third mounting hole (180) are collinear; and a connecting member is sequentially arranged in the first mounting hole (27), the second mounting hole (26) and the third mounting hole (180) to fixedly connect the liquid distribution box frame (23), the front panel (22) and the liquid distribution box (100).

20. The washing apparatus according to claim 19, wherein The liquid storage box (200) comprises a liquid storage box body (261) and a handle plate (265), the handle plate (265) is fixed to the liquid storage box body (261), the lower part of the handle plate (265) protrudes from the liquid storage box body (261), and the handle plate (265) and the liquid distribution box (100) are located on both sides of the liquid distribution box frame (23). The lower part of the hand buckle plate (265) has a hand buckle groove (2651) on the side facing away from the liquid distribution box frame (23), and the lower part of the hand buckle plate (265) has a buckle (2652) on the side facing the liquid distribution box frame (23), the liquid distribution box frame (23) has a buckle groove (28), the buckle groove (28) and the first mounting hole (27) are arranged adjacent to each other on the liquid distribution box frame (23); the front surface of the liquid distribution box (100) is provided with an avoiding hole (190) corresponding to the buckle groove (28); the depth direction of the buckle groove (28) is parallel to the first direction, the buckle (2652) can be buckled with the buckle groove (28), and when the liquid storage box (200) is pulled out of the liquid distribution box (100), the buckle (2652) is separated from the buckle groove (28).

Images