Detergent mixing device, detergent putting module and washing equipment

Abstract

The invention relates to the technical field of washing equipment, and discloses a detergent mixing device, a detergent putting module and washing equipment.The detergent mixing device comprises a shell, a mixing structure and a flow dividing structure, a water inlet is formed in one end of the shell, and a water outlet is formed in the other end of the shell; the mixing structure comprises multiple layers of mixing parts which are distributed inside and outside and arranged at intervals, the multiple layers of mixing parts extend in the water flow direction, and each layer of mixing part is provided with a plurality of water passing holes; a flow dividing cavity is formed between the mixing part on the outermost layer and the inner wall of the shell, a water mixing cavity is formed between every two adjacent mixing parts, and a hedging water outlet cavity communicated with the water outlet is formed in the inner side of the mixing part on the innermost layer. The flow dividing structure is arranged close to the water inlet, and inlet water flow enters the flow dividing cavity through the flow dividing structure. According to the detergent mixing device, inlet water flow passes through the multi-layer mixing part after being shunted and can be mixed for multiple times, so that a detergent and water are fully mixed; meanwhile, the mixed water flows are opposite, so that the noise is reduced while the mixing efficiency is improved again.

Description

Technical Field

[0001] The present invention relates to the technical field of washing equipment, and in particular to a detergent mixing device, a detergent dispensing module and washing equipment. Background Art

[0002] The existing drum washing machine has a method of dissolving detergents: washing powder or liquid detergent is put into the detergent box, water enters the detergent box to impact the washing powder or liquid detergent therein, and the washing powder or liquid detergent flows into the drum from the outlet after dissolving. This dissolution method cannot fully dissolve the washing powder or liquid detergent, and there are problems such as residual washing powder particles or uneven washing liquid detergent entering the drum, thereby affecting the washing effect of the clothes. At the same time, the current structure is difficult to eliminate the noise caused by the fluctuation of the water inlet pressure and the mixing of water and gas. Summary of the invention

[0003] Based on the technical problem of uneven dissolution of detergent in the prior art, the present invention provides a detergent mixing device, in which the incoming water flow passes through a multi-layer mixing part after diversion and can be mixed multiple times to fully mix the detergent and water; at the same time, the mixed water flows offset each other, which further improves the mixing efficiency while reducing the noise caused by water pressure fluctuations and water vapor mixing.

[0004] The present invention provides a detergent mixing device, comprising: A shell having a water inlet at one end and a water outlet at the other end; The mixing structure is arranged in the shell, and includes multiple mixing parts distributed inside and outside and arranged at intervals, the multiple mixing parts are extended along the water flow direction, and each mixing part has a plurality of water holes; A flow diversion cavity is formed between the outermost mixing part and the inner wall of the shell, a water mixing cavity is formed between adjacent mixing parts, and a counter-flow water outlet cavity connected to the water outlet is formed inside the innermost mixing part; The diversion structure is arranged close to the water inlet, and the incoming water flows into the diversion cavity through the diversion structure.

[0005] In some embodiments, the diversion structure is a conical structure, the tip of the conical structure is arranged close to the water inlet, and the bottom of the conical structure is arranged close to the mixing structure.

[0006] In some embodiments, the water holes on the mixing parts of adjacent layers are staggered.

[0007] In some embodiments, a Laval nozzle structure is provided at the water inlet and / or the water outlet.

[0008] In some embodiments, the mixing part is a perforated tube, and a plurality of perforated tubes are arranged inside and outside to form a multi-layer mixing part, and an annular diversion cavity is formed between the outermost perforated tube and the inner wall of the shell.

[0009] In some embodiments, the mixing portion is a perforated plate, and two oppositely disposed perforated plates form a layer of the mixing portion; two diversion cavities are formed between the two outermost perforated plates and the inner walls on both sides of the shell.

[0010] In some embodiments, the water through hole is a rectangular hole, and the rectangular hole extends along the width direction of the mixing part to both sides of the mixing part.

[0011] The present invention also includes a detergent dispensing module, including a water box and a liquid storage box, wherein the water box is provided with a water box water inlet and a water box water outlet, and also includes the above-mentioned detergent mixing device, wherein the water inlet of the detergent mixing device is connected to the water box water outlet.

[0012] The present invention also includes a detergent dispensing module, including a water box and a liquid storage box, the water box includes a box body and a cover assembly, the cover assembly includes an upper cover and a lower cover, the cover assembly has a water supply circuit, the water supply circuit connects the water inlet of the water box and the liquid outlet of the liquid storage box, and also includes the above-mentioned detergent mixing device, the upper cover and the lower cover form the shell of the detergent mixing device, and the diversion structure and the mixing structure are located in the water supply circuit.

[0013] The present invention also includes a washing device, which includes the above-mentioned detergent delivery module.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are: The above-mentioned detergent mixing device includes an inlet water flow of detergent that passes through a multi-layer mixing part after diversion and can be mixed multiple times, so that the detergent and water are fully mixed, and the mixing effect of the detergent and water is effectively improved. At the same time, the mixed water flow is counter-charged in the counter-charge water outlet cavity, which not only plays a role of re-mixing through the counter-charge, but also attenuates the vibration of the water flow, thereby reducing the noise caused by water pressure fluctuations and water vapor mixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 is a schematic structural diagram of a detergent mixing device in Embodiment 1 of the present invention, which is a cross-sectional view; Figure 2 Schematic diagram of water flow in a detergent mixing device in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of a detergent dispensing module in Embodiment 1 of the present invention; Figure 4 is a schematic structural diagram of a detergent mixing device in a second embodiment of the present invention, and is a cross-sectional view; Figure 5 is a schematic structural diagram of a detergent mixing device in a third embodiment of the present invention, which is a cross-sectional view; Figure 6 This is a schematic diagram of the structure of a detergent dispensing module in a fourth embodiment of the present invention, in which the upper cover is not shown; Figure 7 Schematic diagram of the structure of the detergent dispensing module in the fourth embodiment of the present invention; Figure 8 Schematic diagram of water flow in a detergent mixing device in Embodiment 4 of the present invention; Fig. 9 is a cross-sectional view of a water passage hole in a detergent mixing device in a fourth embodiment of the present invention; Description of reference numerals: Detergent mixing device 100; Shell 110; water inlet 111; water outlet 112; Diverter structure 120; Mixing part 130; water hole 131; diversion chamber A; water mixing chamber B; flushing water chamber C; Detergent mixing device 200; Shell 210; water inlet 211; water outlet 212; Diverter structure 220; Mixing portion 230; water hole 231; Detergent mixing device 300; Shell 310; water inlet 311; water outlet 312; Diverter structure 320; Mixing portion 330; water hole 331; Laval nozzle structure 340; Detergent mixing device 400; Shell 410; water inlet 411; water outlet 412; Diverter structure 420; Mixing portion 430; water hole 431; Delivery module 1; water box 11; water box water outlet 12; The delivery module 2; the box body 21; the lower cover 22; the water supply channel 23; the water inlet 24 of the water box; and the detergent inlet 25. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0020] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more. Example

[0021] Reference Figure 1 and Figure 2 , which is an embodiment of the detergent mixing device of the present invention. The detergent mixing device 100 of this embodiment can be arranged in the pipeline between the dispensing module and the washing tub, and can fully mix the detergent and water.

[0022] See also Figure 1 , the detergent mixing device 100 includes a housing 110, a flow dividing structure 120 and a mixing structure.

[0023] The housing 110 is a tubular structure having two opposite ends, a first end and a second end of the housing 110. The first end of the housing 110 has a water inlet 111, and the second end of the housing 110 has a water outlet 112.

[0024] The flow diversion structure 120 is disposed in the housing 110 and is close to the water inlet 111 .

[0025] The mixing structure is disposed in the housing 110 , and includes multiple mixing parts 130 distributed inside and outside and arranged at intervals. The multiple mixing parts 130 are extended along the water flow direction, and each mixing part 130 has a plurality of water holes 131 .

[0026] like Figure 2 As shown, a diversion chamber A is formed between the outermost mixing section 130 and the inner wall of the shell 110, a water mixing chamber B is formed between adjacent mixing sections 130, and a counter-water outlet chamber C connected to the water outlet 112 is formed on the inner side of the innermost mixing section 130.

[0027] The incoming water flows into the diversion chamber A after being diverted by the diversion structure 120 , passes through the multi-layer mixing section 130 from outside to inside in sequence, and flows out from the water outlet 112 after being flushed by the flushing water outlet chamber C.

[0028] In this embodiment, the mixing section 130 is a perforated tube, and the perforations on the side wall of the perforated tube are water holes 131. A plurality of perforated tubes are arranged inside and outside to form a multi-layer mixing section 130, and an annular diversion chamber A is formed between the outermost perforated tube and the inner wall of the shell 110. After the water flows in through the water inlet 111, it flows into the outermost diversion chamber after being diverted by the diversion structure 120. The diverted water flows through the diversion chamber A, and then passes through the multi-layer perforated tubes in turn, is mixed multiple times, and then enters the counter-flow water outlet chamber C. The water flows counter-flow in the counter-flow water outlet chamber C, which can make the water flow better mixed. At the same time, the counter-flow attenuates the vibration of the water flow, that is, the water flows after passing through the same structure on the left and right sides are the same in movement mode and opposite in direction, and cancel each other out after the counter-flow, thereby having a muffler function.

[0029] See also Figure 3 , is a schematic diagram of the structure of the delivery module 1, including a water box 11 and a liquid storage box, and the water box is provided with a water box water inlet and a water box water outlet 12. The water inlet 111 of the detergent mixing device 100 is connected to the water box water outlet 12. The detergent mixing device 100 is connected between the water box and the washing tub, and can fully mix the detergent and water flowing out of the water box. The detergent mixing device 100 can be set in the water pipe at the water box water outlet 12, or connected between the water pipe at the water box water outlet 12 and the water inlet pipe of the washing tub through a connecting structure.

[0030] The above-mentioned detergent mixing device 100, the water flow containing detergent passes through the multi-layer mixing part 130 after diversion, and can be mixed multiple times, so that the detergent and water are fully mixed, and the mixing effect of the detergent and water is effectively improved. At the same time, the mixed water flow is counter-charged in the counter-charge water outlet cavity, which not only plays a role of re-mixing through the counter-charge, but also attenuates the vibration of the water flow, thereby reducing the noise caused by water pressure fluctuations and water vapor mixing.

[0031] See also Figure 1 The diverter structure 120 is preferably a conical structure, the tip of the conical structure is arranged close to the water inlet 111, and the bottom of the conical structure is arranged close to the mixing structure. In this embodiment, the conical structure is a cone, and the bottom edge of the cone is connected to the outermost perforated pipe. In another embodiment, the diverter structure 120 can also be a baffle structure, which can block the top of the mixing structure and divert the incoming water flow to the side.

[0032] In order to further improve the mixing effect of the mixing structure, the water holes 131 on the mixing parts 130 of adjacent layers are staggered, that is, the holes of adjacent perforated tubes are staggered. The water holes 131 can be circular holes or rectangular holes, or holes of other shapes. Example

[0033] See also Figure 4 , which is another embodiment of the detergent mixing device of the present invention. The difference between this embodiment and the first embodiment is that the mixing structure is a perforated plate structure.

[0034] like Figure 4 As shown, the detergent mixing device 200 includes a housing 210, a flow dividing structure 220 and a mixing structure.

[0035] The housing 210 is a rectangular parallelepiped structure, and has a first end and a second end opposite to each other. The first end of the housing 210 has a water inlet 211 , and the second end of the housing 210 has a water outlet 212 .

[0036] The flow diversion structure 220 is disposed in the housing 210 , close to the water inlet 211 of the housing 210 .

[0037] The mixing structure is disposed in the housing 210 , and includes multiple layers of mixing parts 230 distributed inside and outside and arranged at intervals. The multiple layers of mixing parts 230 are extended along the water flow direction, and each layer of the mixing part 230 has a plurality of water holes 231 .

[0038] A diversion cavity is formed between the outermost mixing part 230 and the inner wall of the shell 210 , a water mixing cavity is formed between adjacent mixing parts 230 , and a counter-water outlet cavity connected to the water outlet 212 is formed inside the innermost mixing part 230 .

[0039] The incoming water flows into the diversion cavity after being diverted by the diversion structure 220 , passes through the multi-layer mixing part 230 from outside to inside in sequence, and flows out from the water outlet 212 after being flushed in the flushing water outlet cavity.

[0040] In this embodiment, the mixing part 230 is a perforated plate, and the perforations on the perforated plate are water holes 231. Two perforated plates arranged opposite to each other form a layer of the mixing part 230, and this embodiment exemplarily shows a four-layer mixing part; two diversion cavities are formed between the two outermost perforated plates and the inner walls on both sides of the shell 210.

[0041] After the water flows in through the water inlet 211, it flows into the outermost diversion cavity after being diverted by the diversion structure 220. The diverted water flows through the diversion cavity and passes through the multi-layer perforated plates in turn, and is mixed multiple times, and then enters the counter-flow water outlet cavity, and finally flows out from the water outlet 212. The mixed water flow of water and detergent is counter-flowed in the counter-flow water outlet cavity, which can make the water flow better mixed. At the same time, the counter-flow attenuates the vibration of the water flow, that is, the water flow after passing through the same structure on the left and right sides is the same in movement mode and opposite in direction, and cancels each other after the counter-flow, thereby having a noise reduction function.

[0042] See also Figure 4 In this embodiment, the diverter structure 220 is a conical structure, the tip of the conical structure is arranged close to the water inlet 211, and the bottom of the conical structure is arranged close to the mixing structure. In this embodiment, the conical structure is a cone with an isosceles triangle cross section, and the bottom of the cone is connected to the outermost perforated tube. In another embodiment, the diverter structure 220 can also be a baffle structure, which can block the top of the mixing structure and divert the incoming water flow to the side.

[0043] In order to further improve the mixing effect of the mixing structure, the water holes 231 on the mixing parts 230 of adjacent layers are staggered, that is, the holes of adjacent perforated plates are staggered. The water holes 231 can be circular holes or rectangular holes, or holes of other shapes.

[0044] The detergent mixing device of this embodiment is connected between the detergent delivery module and the washing tub, and can fully mix the detergent and water flowing out of the delivery module. The detergent mixing device can be arranged in the water pipe at the water outlet of the water box of the delivery module, or connected between the water pipe at the water outlet of the water box and the water inlet pipe of the washing tub through a connecting structure. Example

[0045] See also Figure 5 , is another embodiment of the detergent mixing device of the present invention. The mixing structure of this embodiment is also a perforated plate structure.

[0046] like Figure 5The detergent mixing device 300 includes a housing 310, a diverter structure 320 and a mixing structure. One end of the housing is a water inlet 311, and the other end is a water outlet 312. The mixing structure includes multiple mixing parts 330 distributed inside and outside and arranged at intervals. The multiple mixing parts 330 are extended along the water flow direction, and each mixing part 330 has a plurality of water holes 331. A diverter cavity is formed between the outermost mixing part 330 and the inner wall of the housing 310, a mixing water cavity is formed between adjacent mixing parts 330, and a counter-water outlet cavity connected to the water outlet 312 is formed on the inner side of the innermost mixing part 330.

[0047] In this embodiment, the mixing part 330 is a perforated plate, and the perforations on the perforated plate are water holes 331. Two perforated plates arranged opposite to each other form a layer of the mixing part 330, and this embodiment exemplarily shows a three-layer mixing part; two diversion cavities are formed between the two outermost perforated plates and the inner walls on both sides of the housing 310.

[0048] In this embodiment, the water hole 331 is a rectangular hole, which extends to both sides along the width direction of the perforated plate. The cross-sectional shape of the rectangular hole along the length direction of the perforated plate is not specifically limited, and the water hole can be a straight channel structure, a gradually contracting channel structure, a gradually contracting and then gradually expanding channel structure, etc.

[0049] A Laval nozzle structure 340 is also provided at the water inlet 311. The Laval nozzle structure 340 is located between the water inlet 311 and the diverter structure 320, that is, the diverter structure 320 is located at the ejection side of the Laval nozzle structure 340, and can be partially or completely provided at the expansion section of the Laval nozzle or completely located outside the expansion section of the Laval nozzle. The Laval nozzle structure 340 can increase the water flow rate, reduce the flow rate attenuation caused by the mixing section, improve the water flow efficiency, and reduce the water intake time of the washing equipment. In other embodiments, the Laval nozzle structure can also be provided at the water outlet 312. Example

[0050] See also Figure 6-Figure 8 , which is another embodiment of the detergent mixing device of the present invention. The main difference between this embodiment and the second and third embodiments is that the installation position of the detergent mixing device is different. In this embodiment, the detergent mixing device 400 is arranged in the water supply channel of the detergent delivery module 2.

[0051] See also Figure 6The detergent delivery module 2 includes a water box and a liquid storage box, and the water box includes a box body 21 and a cover assembly. The cover assembly includes an upper cover (not shown) and a lower cover 22, and a water supply waterway 23 is provided in the cover assembly. The water supply waterway 23 connects the water inlet of the water box and the liquid outlet of the liquid storage box. That is, the lower cover 22 is provided with a water inlet 24 of the water box and a detergent inlet 25, the water inlet 24 of the water box is connected to the water inlet pipeline of the washing machine, and the detergent inlet 25 is connected to the liquid outlet of the liquid storage box through a pipeline. The detergent in the liquid storage box is pumped into the water supply waterway through the detergent inlet 25, and after mixing with the water flow, it flows into the water box below the lower cover through the water supply waterway 23, and flows into the washing drum through the water outlet of the water box.

[0052] The detergent mixing device 400 of this embodiment is disposed in the water supply channel. After the mixture of detergent and water flows through the detergent mixing device 400, the detergent can be fully dissolved and mixed.

[0053] See also Figure 7 , the detergent mixing device 400 includes a housing 410, a flow dividing structure 420 and a mixing structure.

[0054] The first end of the housing 410 has a water inlet 411, and the second end of the housing 110 has a water outlet 412. Since the detergent mixing device 400 is disposed in the cover assembly, the detergent mixing device 400 can be an integral structure with the cover assembly, that is, the side wall of the water supply waterway 23 and the upper cover and lower cover 22 of the cover assembly form the housing 410 of the detergent mixing device. The diversion structure 420 and the mixing structure are disposed in the water supply waterway 23, and are an integral structure with the cover assembly, and are formed by the rib structure raised on the cover assembly.

[0055] In this embodiment, the mixing structure includes multiple mixing parts 430 distributed inside and outside and arranged at intervals. The multiple mixing parts 430 are extended along the water flow direction, and each mixing part has a plurality of water holes 431.

[0056] A diversion cavity is formed between the outermost mixing part 430 and the inner wall of the shell, a water mixing cavity is formed between adjacent mixing parts 430 , and a counter-water outlet cavity connected to the water outlet 412 is formed inside the innermost mixing part 430 .

[0057] The incoming water flows into the diversion cavity after being diverted by the diversion structure, passes through the multi-layer mixing part 430 from outside to inside in sequence, and flows out from the water outlet after being flushed in the flushing water outlet cavity.

[0058] In this embodiment, the mixing part 430 is a perforated plate, and the perforations on the perforated plate are water holes. Two oppositely arranged perforated plates form a layer of mixing part. This embodiment exemplarily shows a three-layer mixing part, and two diversion cavities are formed between the two outermost perforated plates and the inner walls on both sides of the water supply waterway. The water hole 431 is a rectangular hole, and the rectangular hole extends to both sides along the width direction of the perforated plate.

[0059] See also Figure 8 When water flows from the water inlet 24 of the water box and detergent flows from the detergent inlet 25 of the water box into the water supply channel 23 in the cover assembly, the detergent mixes with water, and then flows into the outermost diversion cavity after being diverted by the diversion structure 420. The diverted water flows through the diversion cavity and passes through the multi-layer perforated plates in turn, and is mixed multiple times, and then enters the counter-flow water outlet cavity, and finally flows out from the water outlet. The mixed water flow of water and detergent counter-flows in the counter-flow water outlet cavity, which can make the water flow better mixed. At the same time, the counter-flow attenuates the vibration of the water flow, that is, the water flow after passing through the same structure on the left and right sides is the same in movement mode and opposite in direction, and cancels each other out after the counter-flow, thereby having a sound-absorbing function.

[0060] See also Figure 7 In this embodiment, the diversion structure 420 is a conical structure, the tip of the conical structure is arranged close to the water inlet, and the bottom of the conical structure is arranged close to the mixing structure. In this embodiment, the conical structure is a cone with an isosceles triangle cross section, and the bottom of the cone is connected to the outermost perforated tube. In other embodiments, the diversion structure can also be a baffle structure, which can block the top of the mixing structure and divert the incoming water flow to both sides.

[0061] In order to further improve the mixing effect of the mixing structure, the water holes 431 on the mixing parts 430 of adjacent layers are staggered, that is, the holes of adjacent perforated plates are staggered. The water holes 431 can also be round holes or holes of other shapes.

[0062] In this embodiment, the water hole 431 is a rectangular hole, and the rectangular hole extends to both sides along the width direction of the perforated plate. Fig. 9 As shown, the cross-sectional shape of the rectangular hole along the length direction of the perforated plate is not specifically limited, and the water hole can be a straight channel structure ( Fig. 9 Middle structure a), tapered channel structure ( Fig. 9 Middle structure b), gradually contracting and then gradually expanding channel structure ( Fig. 9 Structure c and structure d), etc.

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A detergent mixing device, characterized in that: include: A shell having a water inlet at one end and a water outlet at the other end; The mixing structure is arranged in the shell, and includes multiple mixing parts distributed inside and outside and arranged at intervals, the multiple mixing parts are extended along the water flow direction, and each mixing part has a plurality of water holes; A flow diversion cavity is formed between the outermost mixing part and the inner wall of the shell, a water mixing cavity is formed between adjacent mixing parts, and a counter-flow water outlet cavity connected to the water outlet is formed inside the innermost mixing part; The diversion structure is arranged close to the water inlet, and the incoming water flows into the diversion cavity through the diversion structure.

2. The detergent mixing device according to claim 1, characterized in that: The diversion structure is a conical structure, the tip of the conical structure is arranged close to the water inlet, and the bottom of the conical structure is arranged close to the mixing structure.

3. The detergent mixing device according to claim 1, characterized in that: The water holes on the mixing parts of adjacent layers are staggered.

4. The detergent mixing device according to claim 1, characterized in that: A Laval nozzle structure is provided at the water inlet and / or the water outlet.

5. The detergent mixing device according to any one of claims 1 to 4, characterized in that: The mixing part is a perforated tube, and a plurality of perforated tubes are arranged inside and outside to form a multi-layer mixing part, and an annular flow dividing cavity is formed between the outermost perforated tube and the inner wall of the shell.

6. The detergent mixing device according to any one of claims 1 to 4, characterized in that: The mixing part is a perforated plate, and two perforated plates arranged opposite to each other form a layer of the mixing part; two diversion cavities are formed between the two outermost perforated plates and the inner walls on both sides of the shell.

7. The detergent mixing device according to claim 6, characterized in that: The water passage hole is a rectangular hole, and the rectangular hole extends along the width direction of the mixing part to both sides of the mixing part.

8. A detergent delivery module, comprising a water box and a liquid storage box, wherein the water box is provided with a water inlet and a water outlet, characterized in that: It also includes the detergent mixing device as claimed in claim 5, wherein the water inlet of the detergent mixing device is connected to the water outlet of the water box.

9. A detergent dispensing module, comprising a water box and a liquid storage box, wherein the water box comprises a box body and a cover assembly, wherein the cover assembly comprises an upper cover and a lower cover, wherein the cover assembly has a water supply channel therein, wherein the water supply channel connects a water inlet of the water box and a liquid outlet of the liquid storage box, wherein: It also includes the detergent mixing device as claimed in claim 6, wherein the upper cover and the lower cover form a shell of the detergent mixing device, and the diversion structure and the mixing structure are located in the water supply waterway.

10. A washing device, characterized in that: It comprises a detergent dispensing module as claimed in claim 8 or 9.

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