Detergent dispensing device and laundry treatment device

Abstract

A detergent dispensing device (100) and a laundry treatment device. The detergent dispensing device (100) comprises a detergent supply assembly, a liquid output line (20), a first line (40A) and a second line (50A), wherein the detergent supply assembly has a first discharge port for discharging a mixed detergent solution; the first line (40A) and the second line (50A) are configured to convey fluid, and the first line (40A) is in communication with a water source, the first discharge port, and a water intake end of the liquid output line (20); the second line (50A) is in communication with the water source and the water intake end of the liquid output line (20); and the first discharge port is higher than the water intake end of the liquid output line (20) in the direction of gravity, so that the fluid in the first line (40A) and the fluid in the second line (50A) are converged in the liquid output line (20) under the action of gravity, and the fluid in the first line (40A) is the mixed detergent solution.

Description

A detergent dispensing device and a laundry treating apparatus

[0001] Cross Reference to Related Applications

[0002] The present application is based on Chinese Patent Application No. 202410741355.X, filed on June 7, 2024, Chinese Patent Application No. 202421313205.0, filed on June 7, 2024, and claims priority to both of the above Chinese Patent Applications, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] The present application relates to the field of laundry treatment, and in particular to a detergent dispensing device and a laundry treating apparatus. BACKGROUND

[0004] In related art, a laundry treating apparatus mainly includes a laundry treating drum, a detergent box, and a pipeline, the pipeline connecting the detergent box and the laundry treating drum. When washing laundry, external water flow is introduced into the detergent box to form a detergent mixed solution, which is finally introduced into the laundry treating drum through the pipeline to add detergent. However, the detergent, especially laundry powder, is often not fully dissolved and mixed with the water flow, resulting in that the detergent is not fully utilized, the washing effect is poor, and the user experience is affected. SUMMARY

[0005] Therefore, the embodiments of the present application aim to provide a detergent dispensing device and a laundry treating apparatus, which fully dissolve the detergent, especially the powder detergent, before being introduced into the laundry treating cavity, so as to improve the dissolution degree of the detergent and the washing effect, and improve the user experience.

[0006] The first aspect of the embodiments of the present application provides a detergent dispensing device, comprising:

[0007] a detergent supply assembly having a first water outlet for discharging a detergent mixed solution;

[0008] a liquid outlet waterway having a water inlet end and a water outlet end;

[0009] a first waterway and a second waterway for conveying fluid, the first waterway connecting a water source, the first water outlet, and the water inlet end of the liquid outlet waterway; the second waterway connecting the water source and the water inlet end of the liquid outlet waterway; wherein the first water outlet is higher than the water inlet end of the liquid outlet waterway in the direction of gravity, so that the fluid in the first waterway and the fluid in the second waterway converge in the liquid outlet waterway under the action of gravity, and the fluid in the first waterway is the detergent mixed solution.

[0010] In some embodiments, any position of the detergent supply assembly is higher than the water inlet end of the liquid outlet waterway in the direction of gravity.

[0011] In some embodiments, the detergent dispenser further comprises a turbulence structure arranged in the second waterway for providing a circumferential velocity component to the fluid in the second waterway.

[0012] In some embodiments, the turbulence structure comprises one or more helical blades, which separate the second waterway into a plurality of sub-channels along at least a part of the length of the second waterway, each of the sub-channels extending in a helical manner.

[0013] In some embodiments, the water outlet end of the second waterway is provided with a reduced-diameter section, so that the flow rate of the water outlet end of the second waterway is increased.

[0014] In some embodiments, the end of the reduced-diameter section forms the water outlet end of the second waterway; or, the end of the reduced-diameter section is further connected with a constant-diameter section and / or an expanded-diameter section, and the constant-diameter section and / or the expanded-diameter section form the water outlet end of the second waterway.

[0015] In some embodiments, the constant-diameter section and the expanded-diameter section each have a length along the second waterway that is less than or equal to the length of the reduced-diameter section along the second waterway.

[0016] In some embodiments, the detergent supply assembly comprises a detergent box and a dispenser box, the dispenser box is arranged in the detergent box, and the dispenser box is formed with a detergent dispensing cavity, through which the fluid of the first waterway passes and is discharged through the first water outlet.

[0017] In some embodiments, the detergent box is further provided with a mixing cavity for receiving the detergent mixture solution discharged from the detergent dispensing cavity, and the first water outlet is arranged on the cavity wall of the mixing cavity.

[0018] In some embodiments, the detergent box is further provided with an overflow cavity for receiving the detergent mixture solution overflowing from the mixing cavity, and a second water outlet for discharging the detergent mixture solution in the overflow cavity out of the detergent dispenser.

[0019] In some embodiments, the detergent dispenser comprises a first pipeline and a second pipeline, one end of the first pipeline is connected to a water source, the other end of the first pipeline is connected to the water inlet end of the detergent supply assembly for guiding the fluid into the detergent box, and one end of the second pipeline is connected to the first water outlet and the other end of the second pipeline is connected to the liquid outlet waterway.

[0020] In some embodiments, any length of the second pipeline is arranged to be inclined relative to a horizontal plane.

[0021] In some embodiments, the detergent dispensing device comprises a third pipeline, one end of the third pipeline is introduced into a water source, and the other end is in communication with the liquid outlet waterway; a space in the third pipeline independently defines the second waterway, or the space in the third pipeline defines a part of the second waterway.

[0022] The second aspect of the embodiments of the present application provides a laundry treating apparatus, comprising:

[0023] A laundry treating cavity;

[0024] The laundry treating apparatus according to any one of the embodiments of the present application; the water outlet end of the liquid outlet waterway is in communication with the laundry treating cavity.

[0025] In some embodiments, the laundry treating apparatus comprises a door seal ring, the door seal ring has a mounting opening, and the water outlet end of the liquid outlet waterway penetrates through the mounting opening and extends to the radial inner side of the door seal ring.

[0026] The detergent dispensing device provided by the embodiments of the present application can further dilute and dissolve the detergent carried by the first waterway in the liquid outlet waterway by the fluid of the second waterway, so that the dissolution of the detergent can be further promoted before the detergent enters the laundry treating cavity, the mixing uniformity of the detergent and water can be improved, the utilization efficiency of the detergent can be improved, and the cleaning ratio can be improved; on the other hand, the fluid of the first drain port flows under the action of gravity and mixes with the fluid of the second waterway at a certain speed. In this way, the gravitational potential energy can be used to mix the fluid in the liquid outlet waterway from the second waterway, without the need to set an additional electric device such as a water pump, so that power-free mixing can be realized, the cost can be saved, the structure can be simplified, and the working stability can be enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0027] FIG. 1 is a schematic diagram of part of the structure of a laundry treating apparatus according to an embodiment of the present application;

[0028] FIG. 2 is a schematic diagram of a detergent dispensing device and a water inlet valve according to an embodiment of the present application;

[0029] FIG. 3 is a schematic diagram of the structure shown in FIG. 2 from another perspective;

[0030] FIG. 4 is an enlarged partial sectional view of the structure at A in FIG. 2;

[0031] FIG. 5 is a schematic diagram of a necked-down section according to an embodiment of the present application;

[0032] FIG. 6 is a schematic diagram of a first waterway, a second waterway and a liquid outlet waterway according to a first embodiment of the present application;

[0033] Fig. 7 is a schematic view of the first water path, the second water path and the liquid outlet water path of the second embodiment of the present application;

[0034] Fig. 8 is a schematic view of the first water path, the second water path and the liquid outlet water path of the third embodiment of the present application. DETAILED DESCRIPTION

[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0036] In the specific embodiments, each specific technical feature described can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, various possible combinations of each specific technical feature in the present application are not described again.

[0037] In the following description, the terms "first\second\..." are only used to distinguish different objects and do not mean that the objects have the same or related aspects. It should be understood that the terms "upper", "lower", "outer", "inner", "left", "right" refer to the positions in the normal use state, and the terms "left" and "right" refer to the left and right directions shown in the specific schematic view, which can be the left and right directions in the normal use state or not.

[0038] It should be noted that the terms "include", "contain" or any other variants 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 statement "includes one" does not exclude the presence of another identical element in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0039] The present application provides a detergent dispensing device 100, please refer to Fig. 2, the detergent dispensing device 100 includes a detergent supply assembly, a liquid outlet water path 20, a first water path 40A and a second water path 50A. The liquid outlet water path 20 has a water inlet end and a water outlet end. The first water path 40A and the second water path 50A are used to transport fluid.

[0040] It should be noted that, in the embodiments of the present application, the first waterway 40A refers to a fluid flow path and does not specifically refer to a pipe structure. The second waterway 50A refers to a fluid flow path and does not specifically refer to a pipe structure. Please refer to FIGS. 2 to 8, in which the fluid flow directions are indicated by the dashed arrows.

[0041] Exemplarily, the detergent supply assembly has a first drain for discharging the detergent mixed solution. The detergent supply assembly includes the detergent box 30, and the first drain can be formed by the detergent box 30 itself or can be formed by the water outlet end of the waterway structure additionally arranged on the top, side or bottom of the detergent box 30.

[0042] It should be noted that the detergent mixed solution mentioned in the present specification is merely for the convenience of description and refers to a mixed solution in which the detergent is dissolved, the mass percentage concentration of which is not limited and is not limited to complete dissolution of the detergent.

[0043] The form of the detergent is not limited and can be a powder such as laundry powder, can be a flowable laundry liquid, or can be a flowable softener, etc. It can be understood that the detergent mixed solution in the detergent supply assembly is discharged from the detergent supply assembly through the first drain.

[0044] Exemplarily, the detergent supply assembly includes the detergent box 30 and a dispenser box (not shown), which is arranged in the detergent box 30. The dispenser box has a detergent feeding cavity, and the fluid of the first waterway 40A passes through the detergent feeding cavity and the first drain. It should be noted that the detergent in the detergent feeding cavity can flow to the first drain under the action of water.

[0045] In some embodiments, the dispenser box is arranged in the detergent box 30 in a pullable manner, for example, the dispenser box is pulled out from the detergent box 30 at least partially to the outside of the detergent box 30, and a user can put the detergent into the detergent feeding cavity.

[0046] The embodiments of the present application also provide a laundry treatment apparatus, and the type of the laundry treatment apparatus is not limited and can be, for example, a washing machine, a washer-dryer, etc.

[0047] Please refer to FIGS. 1 and 2, the laundry treatment apparatus includes a laundry treatment cavity and the detergent feeding device 100 in any of the embodiments of the present application. The water outlet end of the liquid outlet waterway 20 of the detergent feeding device 100 is communicated with the laundry treatment cavity.

[0048] The first waterway 40A is connected to the water source, the first drain port and the water inlet end of the liquid outlet waterway. The second waterway 50A is connected to the water source and the water inlet end of the liquid outlet waterway. It can be understood that the first waterway 40A carries the detergent mixed solution through the first drain port. The composition of the fluid in the second waterway 50A is not limited, which can be clean water, a detergent mixed solution or a solution added with other care ingredients.

[0049] It should be noted that the water source refers to a water source for supplying fluid to the first waterway 40A and the second waterway 50A, which can be a water source such as tap water or an internal water source such as circulating water of the laundry treatment apparatus. For example, referring to FIG. 2, the laundry treatment apparatus includes a water inlet valve 90 connected to the water source. The first waterway 40A and the second waterway 50A can be connected to different water inlet valves 90 or the same water inlet valve 90, which is not limited herein. As an optional embodiment, the laundry treatment apparatus includes a circulating pump (not shown). One of the first waterway 40A and the second waterway 50A is connected to the water inlet valve 90, and the other is connected to the water outlet of the circulating pump of the laundry treatment apparatus.

[0050] It can be understood that the first waterway 40A carries the detergent mixed solution to continue flowing into the liquid outlet waterway 20 after flowing through the first drain port. The second waterway 50A enters the liquid outlet waterway 20. The first waterway 40A and the second waterway 50A converge in the liquid outlet waterway 20, so that the two fluids are mixed. After mixing, the mixed fluid is discharged from the water outlet end of the liquid outlet waterway 20 and enters the laundry treatment cavity.

[0051] The second waterway 50A does not flow through the first drain port. The detergent carried by the first waterway 40A can be further diluted and dissolved by the fluid in the second waterway 50A in the liquid outlet waterway 20. Thus, the dissolution of the detergent can be further promoted before the detergent enters the laundry treatment cavity, the mixing uniformity of the detergent and water is improved, and thus the utilization efficiency of the detergent and the cleaning ratio are improved.

[0052] It should be noted that the liquid outlet waterway 20 refers to the flow path between the mixing position of the first waterway 40A and the second waterway 50A and the position where the mixed fluid leaves the liquid outlet waterway 20. The water inlet end of the liquid outlet waterway 20 refers to the position where the fluid of the first waterway 40A leaves the first waterway 40A and enters the liquid outlet waterway 20, and the position where the fluid of the second waterway 50A leaves the second waterway 50A and enters the liquid outlet waterway 20. The water outlet end of the liquid outlet waterway 20 refers to the position where the fluid in the liquid outlet waterway 20 leaves the liquid outlet waterway 20.

[0053] For example, referring to FIG. 6, in some embodiments, the liquid outlet waterway 20 includes a mixing space 20a, and the wall surface of the mixing space 20a is provided with two ports 20b, the fluid in the first waterway 40A enters the mixing space 20a from one of the ports 20b, and the fluid in the second waterway 50A enters the mixing space 20a from the other port 20b. The two ports 20b can be considered as the water outlet end of the first waterway 40A and the second waterway 50A, and also as the water inlet end of the liquid outlet waterway 20. The outlet end (not shown in the figure) of the liquid outlet waterway is provided on the wall surface of the mixing space 20a.

[0054] For example, referring to FIG. 6, in some embodiments, the liquid outlet waterway 20 includes a mixing space 20a, and the wall surface of the mixing space 20a is provided with two ports 20b, the fluid in the first waterway 40A enters the mixing space 20a from one of the ports 20b, and the fluid in the second waterway 50A enters the mixing space 20a from the other port 20b. The two ports 20b can be considered as the water outlet end of the first waterway 40A and the second waterway 50A, and also as the water inlet end of the liquid outlet waterway 20. The outlet end (not shown in the figure) of the liquid outlet waterway is provided on the wall surface of the mixing space 20a.

[0055] For example, referring to FIG. 6, in some embodiments, the liquid outlet waterway 20 includes a mixing space 20a, and the wall surface of the mixing space 20a is provided with two ports 20b, the fluid in the first waterway 40A enters the mixing space 20a from one of the ports 20b, and the fluid in the second waterway 50A enters the mixing space 20a from the other port 20b. The two ports 20b can be considered as the water outlet end of the first waterway 40A and the second waterway 50A, and also as the water inlet end of the liquid outlet waterway 20. The outlet end (not shown in the figure) of the liquid outlet waterway is provided on the wall surface of the mixing space 20a.

[0056] For example, referring to FIG. 6, in some embodiments, the liquid outlet waterway 20 includes a mixing space 20a, and the wall surface of the mixing space 20a is provided with two ports 20b, the fluid in the first waterway 40A enters the mixing space 20a from one of the ports 20b, and the fluid in the second waterway 50A enters the mixing space 20a from the other port 20b. The two ports 20b can be considered as the water outlet end of the first waterway 40A and the second waterway 50A, and also as the water inlet end of the liquid outlet waterway 20. The outlet end (not shown in the figure) of the liquid outlet waterway is provided on the wall surface of the mixing space 20a.

[0057] Referring to FIG. 3, the first water outlet is higher than the water inlet end of the liquid outlet waterway 20 in the gravity direction G, so that the detergent mixed solution in the first waterway 40A converges with the fluid in the second waterway 50A in the liquid outlet waterway 20 under the action of gravity.

[0058] The detergent feeding device provided by the embodiment of the present application has a height difference between the first water outlet and the water inlet end of the liquid outlet waterway 20, so that the fluid passing through the first water outlet flows at a high speed under the action of gravity and mixes with the fluid in the second waterway 50A at a certain speed. In this way, the gravity potential can be used to mix the fluid in the second waterway 50A entering the liquid outlet waterway 20, without the need to set an additional electric device such as a water pump, so that the power-free mixing can be realized, the cost can be saved, the structure can be simplified, and the working stability can be enhanced.

[0059] It should be noted that the liquid outlet waterway 20 can be arranged directly below the first water outlet or obliquely below the first water outlet, as long as the water inlet end of the liquid outlet waterway 20 has a height difference with the first water outlet in the gravity direction G.

[0060] In some embodiments, referring to FIG. 3, any position of the detergent feeding assembly is higher than the water inlet end of the liquid outlet waterway 20 in the gravity direction G. The detergent mixed solution in the detergent feeding assembly has a higher gravity potential than the fluid at the water inlet end of the liquid outlet waterway 20, and the acceleration effect of gravity is more obvious when the detergent mixed solution is discharged through the first water outlet.

[0061] In some embodiments, any position of the first waterway 40A is not lower than the water inlet end of the liquid outlet waterway 20 in the gravity direction G. That is, the junction of the liquid outlet waterway 20 and the first waterway 40A is located at the lowest point of the first waterway 40A, so that more energy is converted into kinetic energy of the fluid when the detergent mixed solution in the first waterway 40A converges in the liquid outlet waterway 20, thereby improving the flow speed.

[0062] In some embodiments, any position of the second waterway 50A is not lower than the water inlet end of the liquid outlet waterway 20 in the gravity direction G. The junction of the liquid outlet waterway 20 and the second waterway 50A is located at the lowest point of the second waterway 50A, so that more energy is converted into kinetic energy of the fluid when the fluid in the second waterway 50A converges in the liquid outlet waterway 20, thereby improving the flow speed.

[0063] Exemplarily, the flow rate at the end of the first water path 40A is less than the flow rate at the end of the second water path 50A. The end of the first water path 40A refers to the position at which the fluid in the first water path 40A exits the first water path 40A, and can also be understood as the junction of the first water path 40A and the liquid outlet water path 20. The end of the second water path 50A refers to the position at which the fluid in the second water path 50A exits the second water path 50A, and can also be understood as the junction of the second water path 50A and the liquid outlet water path 20.

[0064] The fluid with a slower flow rate from the first water path 40A and the fluid with a faster flow rate from the second water path 50A are mixed together in the liquid outlet water path 20, which can further promote the dissolution of the detergent, and the mutual impact of the two water paths generates a large amount of foam.

[0065] In some embodiments, referring to FIG. 4, the detergent dispenser 100 further comprises a turbulence structure 21 arranged in the second water path 50A and configured to provide a circumferential velocity component to the fluid in the second water path 50A.

[0066] The circumferential velocity component refers to that, after passing through the turbulence structure 21, the fluid in the second water path 50A has a non-zero component in the circumferential direction of the second water path 50A, and the circumferential direction of the second water path 50A is perpendicular to the extension direction of the second water path 50A.

[0067] In this embodiment, the turbulence structure 21 causes part of the fluid to have both a circumferential movement speed and a forward flow speed, so that the part of the fluid generally presents a spiral movement. When the fluid is sprayed out of the water outlet end of the second water path 50A, the fluid is facilitated to present a conical diffusion, so as to have a wider radiation range and a better visual effect.

[0068] Exemplarily, the turbulence structure 21 comprises one or more spiral blades, and the spiral blades divide at least part of the length of the second water path 50A into multiple sub-flow channels.

[0069] The multiple sub-flow channels refer to that the number of the spiral blades is multiple, which can be two, three or more, that is, the number of the spiral lines is not less than two, and is not limited to the number of turns of the spiral lines.

[0070] After passing through the spiral blades, the fluid presents a spiral movement. The spiral blade structure is simple, has a good fluid disturbance effect, and has a small resistance, thereby reducing the energy loss of the fluid when passing through.

[0071] In some embodiments, referring to FIG. 5, the water outlet end of the second waterway 50A is provided with a reduced-diameter section 22, so that the flow rate of the water outlet end of the second waterway 50A is increased. Exemplarily, in some embodiments, the end of the reduced-diameter section 22 forms the water outlet end of the second waterway 50A. That is, the fluid of the second waterway 50A is sprayed from the end of the reduced-diameter section 22. In other embodiments, the end of the reduced-diameter section 22 is further connected with a constant-diameter section and / or an enlarged-diameter section, which form the water outlet end of the second waterway 50A.

[0072] It should be noted that, in the direction of the movement of the fluid, the flow area of the fluid in the reduced-diameter section is reduced, the flow area of the fluid in the constant-diameter section is basically unchanged, and the flow area of the fluid in the enlarged-diameter section is increased.

[0073] The reduced-diameter section 22 can increase the impact force of the fluid by limiting the flow area when the fluid is sprayed, so that a greater impact force is generated on the fluid at the water outlet end of the first waterway 40A, and a better mixing effect is achieved.

[0074] At the same time, the reduced-diameter section 22 enables the water outlet end of the second waterway 50A to have a greater spraying speed, so that a significant negative pressure can be generated in a relatively large surrounding area, so that the fluid at the water outlet end of the first waterway 40A is sucked under the action of the negative pressure and mixed with the fluid of the second waterway 50A, thereby improving the mixing and foaming effects.

[0075] In some embodiments, the fluid of the first waterway 40A passes through the detergent dispensing chamber and the first drain. In this embodiment, the detergent dispensing chamber can be adapted to contain powdered washing powder, and the fluid of the first waterway 40A can be used to preliminarily dissolve the washing powder when passing through the detergent dispensing chamber. Of course, the detergent dispensing chamber can also be adapted to contain fluid washing agent.

[0076] It should be noted that the above-mentioned first waterway 40A passes through the detergent dispensing chamber and the first drain, that is, the detergent dispensing chamber and the first drain constitute part of the first waterway 40A.

[0077] In some embodiments, referring to FIG. 2, the detergent dispensing device 100 comprises a first pipeline 41 and a second pipeline 42. One end of the first pipeline 41 is connected to a water source, for example, connected to a water inlet valve 90, and the other end of the first pipeline 41 is connected to the water inlet end of the detergent supply assembly, for guiding the fluid into the detergent supply assembly. One end of the second pipeline 42 is connected to the first drain, and the other end of the second pipeline 42 is connected to the liquid outlet waterway 20, for guiding the fluid discharged from the first drain to the liquid outlet waterway 20. In this embodiment, the space in the first pipeline 41, the space in the second pipeline 42, and part of the space in the detergent supply assembly together constitute at least part of the first waterway 40A.

[0078] For example, as shown in FIGS. 2 and 3, in some embodiments, any length of the second pipeline 42 is inclined relative to a horizontal plane, i.e., the second pipeline 42 does not have a length that extends horizontally. In this way, the fluid in any length of the second pipeline 42 can be accelerated under the action of gravity. The horizontal plane is a normal plane of the direction of gravity G and is parallel to the left-right direction of the laundry treatment apparatus.

[0079] As shown in FIG. 2, in some embodiments, the detergent feeding device 100 includes a third pipeline 50. One end of the third pipeline 50 is connected to a water source, and the other end of the third pipeline 50 is connected to the liquid outlet waterway 20, for guiding the water from the water source to the liquid outlet waterway 20. In this embodiment, the space in the third pipeline 50 can independently define a second waterway 50A, or the space in the third pipeline 50 defines part of the second waterway 50A.

[0080] It should be noted that the first pipeline 41 can be a complete pipe body or can be connected by multiple pipe bodies, which is not limited herein.

[0081] The second pipeline 42 can be a complete pipe body or can be connected by multiple pipe bodies, which is not limited herein.

[0082] The third pipeline 50 can be a complete pipe body or can be connected by multiple pipe bodies, which is not limited herein.

[0083] For example, as shown in FIG. 2, the third pipeline 50 can be arranged outside the detergent box 30 as a whole; or part of the third pipeline 50 can be integrated on the shell of the detergent feeding assembly, i.e., part of the shell of the detergent feeding assembly constitutes part of the third pipeline 50; or the third pipeline 50 can be a pipeline structure that penetrates the detergent feeding assembly.

[0084] As shown in FIG. 1, in some embodiments, the laundry treatment apparatus includes a drum assembly 10, and the drum assembly 10 includes an inner drum (not shown).

[0085] For example, the drum assembly 10 further includes an outer tub 11, and the inner drum is rotatably arranged in the outer tub 11. The outer tub 11 is used to hold water for laundry washing, and the inner drum is used to hold laundry. In this embodiment, the inner drum holds water through the outer tub 11, and the inner drum can also be referred to as a perforated inner drum. In other embodiments, the inner drum holds water by itself, and the inner drum can also be referred to as a non-perforated inner drum. The outer tub 11 can be arranged outside the inner drum or can not be arranged outside the inner drum.

[0086] It can be understood that, in some embodiments, the drum assembly 10 can only have the inner drum and does not have the outer tub 11. In this embodiment, the inner drum is a non-perforated inner drum, and the inner drum can hold water by itself.

[0087] Exemplarily, referring to FIG. 1, the laundry treating apparatus further comprises a door body, a cabinet, and a door seal ring 60 arranged at the front side of the drum assembly 10. The drum assembly 10 is arranged in the cabinet. The cabinet is provided with an opening in communication with the interior of the drum assembly 10, and the door body is used to open or close the opening. The door seal ring 60 is used to seal the gap between the drum assembly 10 and the opening of the cabinet, and the door body sealingly abuts on the door seal ring 60 when the door body closes the opening, thereby the communication space formed by the door body, the door seal ring 60 and the interior of the drum assembly 10 constitutes the laundry treating cavity.

[0088] The door seal ring 60 has a mounting opening, and the water outlet end of the liquid outlet waterway 20 penetrates through the mounting opening of the door seal ring 60 and extends to the radial inner side of the door seal ring 60, so as to facilitate the water outlet end of the liquid outlet waterway 20 to directly pour the mixed liquid of the first waterway 40A and the second waterway 50A into the laundry treating cavity.

[0089] The above-mentioned pouring into the laundry treating cavity means that the mixed liquid of the first waterway 40A and the second waterway 50A discharged from the liquid outlet waterway 20 does not need to be guided by other structures, but is directly poured into the laundry treating cavity under the action of the gravity and the fluid pressure of the fluid. In this way, the mixed liquid sprayed to wet the laundry can improve the washing effect.

[0090] In some embodiments, the water outlet end of the liquid outlet waterway 20 is inclined toward the lower rear of the laundry treating cavity, so as to facilitate the ejected mixed liquid to cover a large range of the laundry in the laundry treating cavity.

[0091] Exemplarily, in an embodiment, the detergent box 30 further has a mixing cavity, and the mixing cavity is used to receive the fluid flowing through the detergent pouring cavity, and the first drain port is arranged on the cavity wall of the mixing cavity. That is, the mixed liquid mixed with the detergent enters the mixing cavity and is discharged from the first drain port.

[0092] Exemplarily, the mixing cavity is located below the dispenser box, and the detergent mixed solution flows from the detergent pouring cavity of the dispenser box to the mixing cavity below the dispenser box and is discharged from the first drain port.

[0093] In some embodiments, referring to FIG. 4, the detergent box 30 further has an overflow cavity and a second drain port 30a, the overflow cavity is used to receive the detergent mixed solution overflowing from the mixing cavity, and the second drain port 30a is used to discharge the detergent mixed solution in the overflow cavity from the detergent pouring device.

[0094] In this embodiment, when the water level in the mixing cavity is not higher than the overflow water level, the fluid in the mixing cavity is discharged from the first drain port and flows to the liquid outlet waterway 20. When the water level in the mixing cavity is higher than the overflow water level, the excess water overflows into the overflow cavity and is discharged from the second drain port 30a, that is, the detergent box 30 preferentially discharges water from the first drain port, and the second drain port 30a plays a safety protection role and can timely discharge the excess water in the mixing cavity.

[0095] Exemplarily, the fluid cross-sectional area of the second drain port 30a is greater than that of the first drain port, that is, under the condition of sufficient water volume, the water volume of the second drain port 30a is greater than that of the first drain port.

[0096] Since the fluid cross-sectional area of the first drain port is small, the outflow of the first drain port is relatively small. The second drain port 30a and the overflow cavity can timely drain the detergent mixed solution or fluid of the first waterway 40A under the condition of overflow, thereby reducing the fluid congestion in the detergent box 30 and playing a safety protection role.

[0097] Exemplarily, the laundry treating apparatus further comprises a water outlet pipeline 70, the outer tub 11 has a water inlet, and the water outlet pipeline 70 connects the second drain port 30a and the water inlet. The second drain port 30a guides the overflowed detergent mixed solution into the drum assembly 10 through the water outlet pipeline 70, thereby playing an auxiliary water inlet role.

[0098] In some embodiments, referring to FIG. 2, the laundry treating apparatus comprises a water inlet valve 90, the water inlet valve 90 has a first outlet 90a, and the first waterway 40A and the second waterway 50A are both in communication with the first outlet 90a. A water source supplies water to the laundry treating apparatus through the water inlet valve 90, and the first waterway 40A and the second waterway 50A are both connected to the first outlet 90a of the water inlet valve 90. In this way, the installation of the first waterway 40A and the second waterway 50A can be facilitated, and the setting of the water inlet valve 90 can be simplified, thereby saving costs.

[0099] As shown in FIG. 2, the water inlet valve 90 further has a second outlet 90b, which can be used to supply water to other pipelines.

[0100] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0101] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A detergent dispensing device, comprising: a detergent supply assembly having a first drain for discharging a detergent mixture solution; a liquid outlet waterway having a water inlet end and a water outlet end; a first waterway and a second waterway for conveying fluid, the first waterway being in communication with a water source, the first drain and the water inlet end of the liquid outlet waterway; the second waterway being in communication with the water source and the water inlet end of the liquid outlet waterway; wherein the first drain is higher than the water inlet end of the liquid outlet waterway in a gravity direction, so that the fluid in the first waterway and the fluid in the second waterway converge in the liquid outlet waterway under the action of gravity, and the fluid in the first waterway is the detergent mixture solution.

2. The detergent dispensing device according to claim 1, wherein Any position of the detergent supply assembly is higher than the water inlet end of the liquid outlet waterway in the gravity direction.

3. The detergent dispensing device according to claim 1 or 2, wherein The detergent dispensing device further comprises a turbulence structure arranged in the second waterway for providing a circumferential velocity component to the fluid in the second waterway.

4. The detergent dispensing device according to claim 3, wherein The turbulence structure comprises one or more helical blades, and the helical blades separate a length segment of the second waterway into a plurality of sub-channels, and each of the sub-channels extends in a helical shape.

5. The detergent dispensing device according to any one of claims 1 to 4, wherein, The water outlet end of the second waterway is provided with a reduced diameter segment, so that the flow rate of the water outlet end of the second waterway is increased.

6. The detergent dispensing device according to claim 5, wherein The end of the reduced diameter segment forms the water outlet end of the second waterway; or the end of the reduced diameter segment is further connected with a constant diameter segment and / or an expanded diameter segment, and the constant diameter segment and / or the expanded diameter segment form the water outlet end of the second waterway.

7. The detergent dispensing device according to claim 6, wherein The constant diameter segment and the expanded diameter segment are each less than or equal to the extension length of the reduced diameter segment along the second waterway.

8. A detergent dispensing device according to any one of claims 1-7, wherein, The detergent supply assembly comprises a detergent box and a dispenser box, the dispenser box is arranged in the detergent box, the dispenser box is formed with a detergent dispensing cavity, and the fluid of the first waterway passes through the detergent dispensing cavity and the first drain.

9. The detergent dispensing device according to claim 8, wherein The detergent box is further provided with a mixing cavity for receiving the detergent mixture solution discharged from the detergent dispensing cavity, and the first drain is arranged on the cavity wall of the mixing cavity.

10. The detergent dispensing device according to claim 9, wherein The detergent box is further provided with an overflow cavity for receiving the detergent mixture solution overflowing from the mixing cavity and a second drain for discharging the detergent mixture solution in the overflow cavity from the detergent dispensing device. 11.The detergent dispensing device according to any one of claims 1-10, comprising a first pipeline and a second pipeline, one end of the first pipeline is connected to a water source, the other end of the first pipeline is connected to the water inlet end of the detergent supply assembly for guiding fluid into the detergent box, and one end of the second pipeline is connected to the first drain and the other end of the second pipeline is in communication with the liquid outlet waterway.

12. The detergent dispensing device according to claim 11, wherein, Any length segment of the second pipeline is arranged to be inclined relative to a horizontal plane.

13. A detergent dispensing device according to any one of claims 1-10, wherein, The detergent dispensing device comprises a third pipeline, one end of the third pipeline is connected to a water source, and the other end of the third pipeline is in communication with the liquid outlet waterway; the space in the third pipeline independently defines the second waterway, or the space in the third pipeline defines a part of the second waterway. 14.A laundry treating apparatus comprising: a laundry treating cavity; the detergent dispensing device of any one of claims 1 to 13; an outlet end of the liquid outlet waterway communicates with the laundry treating cavity. 15.The laundry treating apparatus according to claim 14, wherein, The laundry treating apparatus comprises a door seal ring having a mounting port, and an outlet end of the liquid outlet waterway penetrates through the mounting port and extends to a radially inner side of the door seal ring.

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