CN118257109A - A dispensing device and washing machine - Google Patents

Abstract

The present invention provides a dispensing device and a washing machine, wherein the dispensing device comprises: a dispensing box, which has a washing powder cavity for dispensing washing powder; a water tank, which uses the water flow from the automatic dispensing device to enter the water tank to flush the washing powder in the washing powder cavity into the water tank to form a washing powder solution; a water supply waterway, which is equipped with a negative pressure suction structure, which uses the water flow flowing through the water supply waterway to form a negative pressure; the negative pressure suction structure is connected to the water tank, and uses the negative pressure to draw the washing powder solution in the water tank into the water supply waterway. Through the above-mentioned arrangement, the washing powder solution to be dispensed can be extracted by using the water flow flowing through the separately arranged water supply waterway, so as to achieve the effect of automatically extracting and dispensing the washing powder solution, thereby achieving a significant technical progress of using the washing powder solution to directly wash the clothes in the washing machine drum with high-concentration essence.

Description

Throwing device and washing machine

Technical Field

The invention belongs to the technical field of clothes treatment equipment, in particular relates to an automatic throwing device of a washing machine, and particularly relates to a throwing device with an automatic washing powder throwing function, and further relates to a washing machine provided with the automatic throwing device.

Background

The existing washing machine is generally provided with a water containing cylinder for containing washing water, a rotatable washing cylinder is arranged in the water containing cylinder, and a dehydration hole communicated with the inside and the outside is formed in the washing cylinder, so that the washing water flowing into the water containing cylinder can flow alternately inside and outside the washing cylinder by utilizing the dehydration hole, and the effects that the washing water is contacted with a load to be treated and the washing water is utilized for treating the load are realized.

The additive feeding mode of the prior washing machine is as follows: and the additive is put into a pipeline communicated with the water containing cylinder of the washing machine through the additive putting device, and then the put additive flows into the water containing cylinder of the washing machine along the pipeline. Therefore, the additive put in the prior art is positioned in the water containing cylinder and outside the washing cylinder of the washing machine, and cannot be directly contacted with the load put in the washing cylinder.

Then, when the washing machine executes a washing program, the added additive is mixed with the washing water flowing into the water containing cylinder, and part of the washing water mixed with the additive flows into the washing cylinder through the dehydration holes and contacts with a load to be treated in the cylinder, so that a small part of the additive mixed into the washing water contacts with the load and acts on the load. Therefore, the traditional additive feeding mode has the problems of low use efficiency of the fed additive and waste of the additive.

Meanwhile, in the traditional additive feeding mode, in order to ensure that the additive fed between the water containing cylinder and the washing cylinder is in contact with the load to be treated in the washing cylinder, a large amount of water needs to flow into the water containing cylinder until the water level of the washing water in the water containing cylinder is higher than that of the washing cylinder, and the purposes that the washing water flows into the washing cylinder through the dehydration holes and the additive is in contact with the load in the washing cylinder can be ensured. Therefore, the traditional additive feeding mode also has the problem that the water for feeding the additive is excessive.

In addition, the conventional additive feeding device generally has an automatic feeding function of liquid detergent only, and does not have the feeding of solid additives such as washing powder, so that the conventional essence washing machine cannot utilize the additives such as the solid washing powder to wash the clothes.

In view of this, the present invention has been made.

Disclosure of Invention

The invention aims to solve the technical problems of overcoming the defects of the prior art and providing an automatic throwing device so as to realize the aim that additives such as washing powder and the like can be thrown outwards directly through a water supply waterway; meanwhile, the invention also aims to provide an automatic throwing device so as to realize the purpose of extracting and throwing the additive mixed liquid by utilizing negative pressure.

In order to achieve the aim of the invention, the invention adopts the following basic conception of the technical scheme:

The invention provides a delivery device, which comprises: the feeding box is internally provided with a washing powder cavity for feeding washing powder; a water tank, wherein washing powder in the washing powder cavity is washed into the water tank by utilizing water inflow entering the water tank by the automatic throwing device to form washing powder dissolving liquid; the water supply waterway is provided with a negative pressure suction structure, and negative pressure is formed by utilizing water flow flowing through the water supply waterway; the negative pressure suction structure is communicated with the water tank, and the washing powder dissolving liquid in the water tank is pumped into the water supply waterway by utilizing negative pressure.

Further, the negative pressure suction structure is a venturi tube installed on the water supply pipeline, the venturi tube is provided with a pipe diameter narrowing section and a pipe diameter expanding section which are sequentially arranged, a negative pressure port which is communicated with the inside and the outside of the pipeline is arranged at the joint of the pipe diameter narrowing section and the pipe diameter expanding section, and the negative pressure port is communicated with a detergent dissolution outlet arranged at the bottom of the water tank through a liquid suction pipeline.

Further, a water inlet structure is arranged at the top of the water tank and is communicated with a water supply channel of the water tank, a water outlet is formed in the water inlet structure towards the washing powder cavity of the throwing box, and washing powder in the washing powder cavity is flushed into the water tank by utilizing flowing water; preferably, the water outlet of the water inlet structure is downwards arranged and positioned above the opening at the top of the washing powder cavity.

Further, a separation rib is arranged at the bottom of the water tank, and the lower part of the water tank is divided into a first water outlet tank and a second water outlet tank; the bottoms of the first water outlet tank and the second water outlet tank are respectively provided with a washing powder dissolving liquid outlet and a main washing opening, the washing powder dissolving liquid outlet is communicated with a negative pressure opening of a negative pressure suction structure through a liquid suction pipeline, and the main washing outlet is communicated with a throwing waterway of the automatic throwing device.

Further, the first water outlet tank and the second water outlet tank are sequentially arranged in front and back, and the first water outlet tank is communicated with an outlet of the washing powder cavity for the washing powder to flow in along with the water inlet; preferably, the bottom of the first water outlet tank is an inclined plane converging and inclined towards the main washing opening and is used for guiding the washing powder dissolving liquid in the first water outlet tank to flow to the washing powder dissolving liquid outlet.

Further, the putting box is also provided with at least one putting cavity for accommodating the detergent, and the detergent in the putting cavity is put into a second water outlet groove of the water groove by utilizing a water inlet structure arranged at the top of the water groove; preferably, the bottom of the second water outlet tank is an inclined plane converging and inclining towards the laundry detergent water outlet, and is used for guiding the liquid in the second water outlet tank to flow towards the main washing outlet.

Further, a drawer part which can be pulled out from the front side is arranged on the water tank, the drawer part forms a throwing box, and at least one washing powder cavity for containing washing powder and at least one throwing cavity for containing washing agent are arranged on the throwing box; preferably, the front side of the water tank is provided with an opening for the drawer to be drawn out, and the front side wall of the water tank is formed by a vertically extending front side baffle plate positioned below the opening, and the top end of the front side baffle plate is higher than the top end of the separation rib.

Further, an outlet of the water supply waterway and an outlet of the water throwing waterway respectively form a washing powder throwing port and a washing liquid throwing port of the automatic throwing device; or the outlet of the water supply waterway is communicated with the throwing waterway, and the outlet of the throwing waterway forms a throwing port shared by the detergent dissolving liquid and the washing liquid dissolving liquid of the automatic throwing device.

The water tank water supply waterway is communicated with the water inlet structure; the water outlet of the water inlet structure is arranged towards the washing powder cavity at the lower part and is used for feeding water into the water tank through the washing powder cavity.

The invention further aims to provide a washing machine provided with the automatic feeding device, so that the aim of directly feeding additives into the washing cylinder is fulfilled, and the aim of directly contacting the fed additive mixed liquid such as washing powder with a load to be treated in the washing cylinder is fulfilled, and the utilization rate of the additives such as washing powder is improved.

In order to achieve the aim of the invention, the invention adopts the following basic conception of the technical scheme:

The invention also discloses a washing machine, which comprises a washing cylinder for containing the load to be treated, and further comprises any one of the automatic throwing devices, wherein the inlet of each water supply waterway of the automatic throwing device is communicated with the water inlet pipe of the washing machine, and the throwing port of the automatic throwing device is communicated with the inside of the washing cylinder.

After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects:

1. By arranging the water supply waterway 1 with the negative pressure suction structure, the washing powder dissolving liquid to be thrown is extracted by utilizing the water flow in the water supply waterway 1 which is independently arranged, so that the effect of automatically extracting and throwing the washing powder dissolving liquid is realized; meanwhile, the extracted detergent solution is directly mixed into the water supply waterway 1, so that the effect that the detergent solution is directly mixed in the water supply waterway 1 and then is put into the washing drum 300 of the washing machine is achieved, and further, the remarkable technical progress of directly washing the underwear with the detergent solution in high-concentration essence is achieved.

2. Meanwhile, the additive throwing device is arranged on the washing machine, so that additives of the washing machine directly flow to the nozzle through the water supply waterway after forming mixed liquid, and are directly sprayed into the washing cylinder through the nozzle, and the purposes that the additives of the washing machine do not flow into the washing cylinder through the water containing cylinder outside the washing cylinder, are directly sprayed to a load to be treated through the waterway of the throwing device, and the mixed liquid of the additives is directly sprayed to the load to be treated in the washing cylinder are achieved.

3. Moreover, through the arrangement, the washing machine with the throwing device can realize that the additive mixed solution formed by mixing the additive with a small amount of water in the water supply waterway is directly sprayed onto the load to be treated in the washing cylinder, so that the utilization rate of the thrown additive is obviously improved.

Meanwhile, the invention has simple structure and obvious effect, and is suitable for popularization and use.

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic diagram of a delivery device in an embodiment of the invention;

Fig. 2 to 3 are schematic structural views of a delivery device according to embodiments of the present invention from different viewing angles;

FIG. 4 is a schematic view of an exploded construction of a delivery device in an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a delivery device according to an embodiment of the present invention;

FIG. 6 is an enlarged schematic view of the structure at A of FIG. 5 in an embodiment of the invention;

FIG. 7 is a schematic view of the structure of a water tank according to an embodiment of the present invention;

FIG. 8 is a schematic view of a dispensing device according to another embodiment of the present invention;

fig. 9 is a flowchart of a method of controlling a delivery device according to an embodiment of the present invention.

The main elements in the figure are illustrated:

100. A delivery device; 200. a water holding cylinder; 300. a washing drum; 1. a water supply waterway; 2. a water tank; 3. an upper cover; 31. a first portion; 32. a second portion; 4. a negative pressure suction structure; 5. a dispensing box; 6. a water inlet valve; 7. a supercharging structure; 8. a water inlet structure; 9. throwing in a waterway; 11. a water tank water supply channel; 12. throwing in a water supply waterway; 13. a liquid pumping pipeline; 21. a first water outlet tank; 22. a second water outlet tank; 23. a separation rib; 24. a front side baffle; 231. a first partition; 232. a second partition; 233. a notch; 211. a detergent dissolution outlet; 212. a groove; 221. a main wash outlet; 40. a venturi tube; 41. a negative pressure port; 42. a liquid inlet pipe section; 43. a liquid outlet pipe section; 44. a negative pressure suction zone; 45. a liquid pumping cavity; 421. a necking pipe; 422. an annular fitting portion; 431. a straight pipe; 432. an assembly groove; 433. a seal ring; 401. a necking section; 402. a straight pipe section; 403. a flaring section; 51. a washing powder cavity; 52. a delivery chamber; 511. an outlet; 70. a pressurizing nozzle.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 8, a washing machine is described in an embodiment of the present invention, which includes: the water containing cylinder 200 for containing water, the rotatable washing cylinder 300 for containing the load to be treated is arranged in the water containing cylinder 200, and the automatic feeding device 100 for directly feeding the additive mixed solution into the washing cylinder 300 is arranged. Through the arrangement, the washing machine can realize the use effects that the additive mixed liquid is directly put into the washing cylinder 300 and the put additive mixed liquid is directly sprayed onto the load to be treated in the washing cylinder 300, thereby achieving the remarkable technical progress of improving the utilization rate of the additive.

Meanwhile, in the application, the additive can be liquid detergent, softener, disinfectant and the like; the additives may also be provided as solid laundry powder or the like. In the application, the automatic feeding device 100 can also directly feed the washing powder into the washing drum 300, so that after a user manually adds the washing powder into the feeding device 100, the washing powder is firstly dissolved into the washing powder dissolving liquid by the water inlet of the feeding device 100, and then the washing powder dissolving liquid is directly sprayed and fed onto the load to be treated in the washing drum 300 along with the water flow of the water inlet, thereby achieving the effect of directly acting on the clothes in the washing drum 300 by utilizing the concentrated washing powder dissolving liquid and performing concentrated essence washing on the clothes. In addition, in the present application, since the detergent is directly mixed in the dispensing device 100, the formed detergent solution is directly sprayed on the laundry in the washing drum 300, and when the washing machine performs the subsequent washing procedures, water does not need to be introduced into the water containing drum 200, so that the detergent solution is prevented from being diluted, and the water consumption is greatly reduced.

In the invention, the water outlet of the water supply waterway 1 of the automatic throwing device 100 can directly form the throwing port of the throwing waterway 9, and the outlet of the water supply waterway 1 can also be communicated with the independently arranged throwing waterway 9, and the throwing port of the throwing waterway 9 is connected with a nozzle which sprays towards the inside of the washing drum 300 of the washing machine; the spray nozzle can be arranged on the shell, and/or the door body, and/or the water drum 200, and/or the window pad of the washing machine, and the spray outlet of the spray nozzle is arranged towards the inside of the washing drum 300, so that the additive mixture can be directly sprayed onto the load placed in the washing drum 300 of the washing machine through the spray nozzle to the maximum extent, and the effect of performing non-immersed essence washing on clothes is realized.

Example 1

As shown in fig. 1 to 8, an automatic dispensing device 100 with a detergent dispensing function according to an embodiment of the present invention includes: a feeding box 5, inside which a washing powder cavity 51 for feeding washing powder is arranged; a water tank 2, wherein washing powder contained in the washing powder cavity 51 is washed into the water tank 2 by utilizing water inflow entering the water tank 2, and the washing powder in the water tank is dissolved in water to form washing powder dissolving liquid; the water supply waterway 1, the water supply waterway 1 is provided with a negative pressure suction structure 4, and negative pressure is formed by utilizing water flow flowing through the water supply waterway 1; the negative pressure port 41 of the negative pressure suction structure 4 is communicated with the water tank 2, and the washing powder dissolving liquid in the water tank 2 is sucked into the water supply waterway 1 by utilizing negative pressure and is thrown along with the water flow flowing through the water supply waterway 1.

By arranging the water supply waterway 1 with the negative pressure suction structure, the mixed liquid of the detergent dissolving liquid to be put in is extracted by utilizing the water flow in the water supply waterway 1 which is independently arranged, so that the effect of automatically extracting and putting in the detergent dissolving liquid is realized; meanwhile, the extracted detergent solution is directly mixed into the water supply waterway 1, so that the effect that the detergent solution is directly mixed in the water supply waterway 1 and then is put into the washing drum 300 of the washing machine is achieved, and further, the remarkable technical progress of directly washing the underwear with the detergent solution in high-concentration essence is achieved.

In this embodiment, the negative pressure suction structure 4 is a venturi tube 40 installed on the water supply waterway 1, the venturi tube 40 is provided with a necking section 401 with a narrowed tube diameter, a straight tube section 402 with a smaller tube diameter and a flaring section 403 with an expanded tube diameter, the straight tube section 402 at the joint of the necking section 401 and the flaring section 403 is provided with a negative pressure port 41 for communicating the inside and the outside of the pipeline, and the negative pressure port 41 is communicated with a detergent dissolution liquid outlet 211 arranged at the bottom of the water tank 2 through a liquid suction pipeline 13.

In this embodiment, the top of the water tank 2 is provided with a water inlet structure, the water inlet structure is communicated with the water supply channel 11 of the water tank, the water inlet structure is provided with a water outlet towards the top opening of the washing powder cavity 51 of the throwing box 5, and washing powder in the washing powder cavity 51 is flushed into the water tank 2 by utilizing flowing water flow. Preferably, the top of the water tank 2 is covered and provided with an upper cover 3, the upper cover 3 is composed of a first part 31 and a second part 32 which are mutually buckled, and an integrated waterway formed by concave-convex structures is arranged at the joint surface of the two parts; at least part of the integrated waterway forms a water inlet structure.

In the embodiment, the bottom of the water tank 2 is provided with a separation rib 23, and the lower part of the water tank 2 is divided into a first water outlet tank 21 and a second water outlet tank 22; the bottoms of the first water outlet tank 21 and the second water outlet tank 22 are respectively provided with a detergent dissolution liquid outlet 211 and a main washing opening 221, the detergent dissolution liquid outlet 211 is communicated with the negative pressure opening 41 of the negative pressure suction structure 4 through the liquid suction pipeline 13, and the main washing opening 221 is communicated with a water throwing channel of the throwing device 100.

In this embodiment, the first water outlet tank 21 and the second water outlet tank 22 are sequentially arranged, and the first water outlet tank 21 is communicated with an outlet 511 of the detergent cavity 51 on the feeding box for flowing in detergent solution; preferably, the bottom of the first water outlet tank 21 is inclined toward the detergent dissolution liquid outlet 211, so as to guide the liquid in the first water outlet tank 21 to flow toward the detergent dissolution liquid outlet 211.

In this embodiment, the dispensing box 5 is installed in the water tank in a manner that the dispensing box 5 can be pulled outwards, the dispensing box 5 has at least one dispensing cavity 52 for containing detergent, and the integrated waterway arranged on the upper cover 3 at the top of the water tank 2 is used to dispense the detergent in the dispensing box 5 into the second water outlet tank 22 of the water tank 2, or directly dispense the extracted detergent from the dispensing waterway 9 of the automatic dispensing device 100; preferably, the detergent dispensing chamber 52 and the detergent dispensing chamber 51 are integrally provided on the same component dispensing box 5; preferably, the bottom of the second water outlet tank 22 is inclined so as to converge toward the main washing-out port 221, and serves to guide the liquid in the second water outlet tank 22 toward the main washing-out port 221.

In the embodiment, a drawer part which can be pulled out to the front side is arranged on the water tank 2, the drawer part forms a throwing box 5, and at least one washing powder cavity 51 for containing washing powder and at least one throwing cavity 52 for containing washing agent and the like are arranged on the drawer part; preferably, the front side of the tub 2 has an opening through which the drawer is drawn out, and the front side wall of the tub 2 is formed of a vertically extending front baffle 24 located below the opening, and the top of the front baffle 24 is higher than the top of the partition rib 23, so as to ensure that the detergent solution or the like flowing into the tub does not overflow from the front side of the dispenser 100.

In the embodiment, the outlet of the water supply waterway 1 and the outlet of the water throwing waterway 9 respectively form a washing powder throwing port and a washing liquid throwing port of the automatic throwing device; or the outlet of the water supply waterway 1 is communicated with the throwing waterway 9, and the outlet of the throwing waterway 9 forms a throwing port shared by the detergent dissolving liquid and the washing liquid dissolving liquid of the automatic throwing device.

Example two

As shown in fig. 1 to 8, in this embodiment, an automatic delivery device includes: at least two water supply waterways 1, a flume water supply waterway 11 and a throwing water supply waterway 12; a delivery box 5 which is arranged in the water tank 2 and is internally provided with a washing powder cavity 51 for delivering washing powder; the water supply channel 11 of the water tank is connected with the water inlet structure 8 of the water tank 2, and washing powder in the washing powder cavity 51 is flushed into the water tank 2 by utilizing the water inlet and mixed in the water tank 2 to form washing powder dissolving liquid; the water supply channel 12 is connected with the outlet of the water tank 2, and the washing powder dissolved solution mixed in the water tank 2 is pumped out by the flowing water flow and is thrown outwards along with the flowing water flow.

Through the arrangement, after water is respectively fed into the two different water supply waterways, pre-thrown washing powder can be mixed to form washing powder dissolving liquid, and the washing powder dissolving liquid is extracted and thrown for separate execution, so that the effect of automatically throwing washing powder thrown by a user is achieved; meanwhile, as the two water supply waterways can be synchronously executed, the mixing and the extraction of the washing powder can be synchronously executed, and the time consumption of the throwing device for throwing the washing powder is greatly shortened.

In this embodiment, the automatic dispensing device 100 has a water inlet valve 6, which is a two-inlet valve and a two-outlet valve, and controls the communication between the inlet and one of the two outlets, or the simultaneous communication, or the simultaneous disconnection; the two outlets are respectively communicated with inlets of the water tank water supply waterway 11 and the throwing water supply waterway 12; or the same outlet of the water inlet valve 6 is communicated with inlets of the water tank water supply waterway 11 and the throwing water supply waterway 12 through a tee joint, so that the water tank water supply waterway 11 and the throwing water supply waterway 12 can only be synchronously switched on and off, but the technical effect of automatically throwing the additive after mixing can still be achieved, and the technical purpose of essence washing can be realized for the washing machine.

In the embodiment, a throwing box 5 capable of being pulled outwards is arranged in the water tank 2, a washing powder cavity 51 is arranged on the throwing box 5, an outlet is arranged at the bottom of the washing powder cavity 51, and an inlet is formed by opening the top; at least the water outlet pipe section of the water tank water supply waterway 11 is integrally arranged on the upper cover 3 at the top of the water tank 2, and the outlet of the water tank water supply waterway 11 is opened towards the top opening of the washing powder cavity 51 and is used for directly flowing out water into the washing powder cavity 51. Preferably, the top of the water tank is buckled with an upper cover 3, the upper cover 3 is composed of a first part 31 and a second part 32 which are buckled up and down, and the first part 31 and the second part 32 are spliced relatively to form an integrated waterway at the joint surface; at least part of the integrated waterway forms a water inlet structure 8, the water inlet structure is communicated with the outlet of the water tank water supply waterway 11, the water tank water supply waterway 11 is provided with a water outlet which is arranged towards the lower side of the upper cover, and the water outlet is positioned above the opening of the upper end of the washing powder cavity, so that the inflow water flow flowing in from the water tank water supply waterway 11 can directly flow into the washing powder cavity 51, and the pre-thrown washing powder is flushed into the water outlet tank at the lower part of the water tank 2 to form washing powder dissolving liquid. It is further preferred that the first portion 31 and the second portion 32 of the upper cover 3 are connected by a welding process to form a closed, pressure-bearing waterway structure inside.

In this embodiment, the water supply throwing channel 12 is disposed below the water tank 2, and a negative pressure suction structure 4 is disposed in the middle of the water supply throwing channel 12, and a negative pressure port 41 of the negative pressure suction structure 4 is connected with the water tank 2 via a liquid suction pipeline 13 and is used for extracting detergent dissolution liquid into the water supply throwing channel 12.

In this embodiment, the water supply water path 12 is further provided with a pressurizing structure 7 for pressurizing the water flowing through, so as to form a pressurized water flow in the water supply water path 1; the pressurizing structure 7 is arranged at the upstream of the negative pressure suction structure 4 and is used for carrying out high-speed impact mixing on the extracted detergent solution by utilizing the flow of pressurizing water and improving the mixing uniformity of the detergent solution and the water supply flow; preferably, the pressurizing structure 7 is a pressurizing nozzle 70 formed of a conical tube having a gradually narrowing radial dimension in the water flow direction.

In this embodiment, the negative pressure suction structure 4 is a venturi tube 40, a tube section for changing the flow velocity of the flowing water by utilizing the change of the tube diameter is provided on the venturi tube 40, a negative pressure suction area 44 for generating negative pressure by utilizing the flowing water is provided on the tube section, the negative pressure suction area 44 is provided with a negative pressure port 41 for conducting the inside and outside, and the negative pressure port 41 is communicated with the washing powder outlet 211 of the water tank 2 through the liquid suction pipeline 13, so that the mixed washing powder dissolving liquid is directly pumped into the water supply waterway 12 under the action of negative pressure, and is thrown outwards along with the flowing water in the water supply waterway 12. Preferably, the upstream end of the venturi tube 40 is provided with a liquid pumping cavity 45, and a negative pressure pumping area 44 communicated with the venturi tube 40 is formed in the liquid pumping cavity 45; the side wall of the liquid pumping cavity 45 is provided with the negative pressure port 41 which is communicated with the inside and the outside, so that water flow flowing through the venturi tube can directly guide negative pressure to the liquid pumping cavity 45, and the diversity of the positions where the negative pressure port 41 is arranged is greatly improved.

In this embodiment, the pressurizing structure 7 is a pressurizing nozzle 70 disposed on the venturi tube 40, and the pressurizing nozzle 70 is disposed at the inlet of the venturi tube 40, for increasing the flow rate of the liquid flowing into the venturi tube 40 and forming a high-pressure water flow; the high-pressure water flow can not only perform high-pressure impact on the detergent dissolution liquid extracted from the venturi tube 40, but also improve the mixing effect; the negative pressure generated when the high-pressure water flow flows through the pipe diameter expanding part at the outlet of the venturi tube 40 can be increased, so that the extraction efficiency of the venturi tube 40 to the detergent solution in the water tank is improved; preferably, the pressurizing nozzle 70 is disposed within the pumping chamber 45, with a gap between the pressurizing nozzle 70 and the pumping chamber 45, which gap forms the negative pressure pumping area 44 and communicates directly with the venturi 40.

In this embodiment, the outlet of the water supply channel 12 is connected to the washing drum 300 of the washing machine through a nozzle, and is used to directly spray the extracted detergent solution into the washing drum 300 of the washing machine, and perform procedures such as washing with higher concentration of detergent on the clothes in the washing drum 300.

Example III

As shown in fig. 1 to 8, a negative pressure suction structure 4 is described in the present embodiment, which includes: a liquid inlet pipe section 42 having a liquid inlet pipe section 42 into which a fluid flows; a liquid outlet pipe section 43 having a liquid outlet channel through which the fluid flows out; the outlet part of the liquid inlet pipe section 42 is inserted into the inlet part of the liquid outlet pipe section 43, and the liquid inlet pipe section 42 is communicated with the liquid outlet pipe section 43 to form a flow passage through which water flows; the gap between the outer wall of the outlet portion of the liquid inlet pipe section 42 and the inner wall of the inlet portion of the liquid outlet pipe section 43 constitutes a negative pressure suction area 44 for generating negative pressure in the water flow flowing through the flow passage, and the outer wall of the liquid outlet pipe section 43 is provided with a negative pressure port 41 for communicating the negative pressure suction area 44 with the outside.

Through the arrangement, the negative pressure suction structure is integrated with the pressurizing structure, so that inflow water flowing into the negative pressure suction structure is pressurized and accelerated, water pressure of water flowing through the negative pressure suction structure is greatly improved, negative pressure at the negative pressure suction area is increased, and the speed of extracting additive mixed liquid is obviously improved. Meanwhile, through the arrangement, negative pressure can be generated in the negative pressure suction area by utilizing the injection process of the pressurizing structure formed by the necking pipe, and the negative pressure suction effect is further improved.

In this embodiment, the outlet portion of the liquid inlet pipe section 42 is a necking pipe 421 with a gradually narrowing pipe diameter along the water flow direction; the inlet part of the liquid outlet pipe section 43 is a straight pipe 431 coaxially sleeved on the outer wall of the necking pipe, and the inner pipe diameter of the straight pipe 431 is larger than the maximum outer pipe diameter of the necking pipe 421; the necking pipe 421 of the liquid inlet pipe section 42 stretches into the straight pipe 431 of the liquid outlet pipe section 43, a gap between the necking pipe 421 and the straight pipe 431 forms a negative pressure suction area 44, and a negative pressure port 41 is formed in the pipe wall of the middle part of the straight pipe 431. The outlet end of the necking pipe 421 is straightened into the straight pipe 431 or is stretched into the downstream of the straight pipe 431, so that the pressurized water flow sprayed out of the necking pipe 421 directly enters the straight pipe 431 with a larger radial dimension, and negative pressure is formed at the negative pressure suction area 44 between the straight pipe 431 and the necking pipe 421 by utilizing the spraying effect, so that the washing powder dissolving liquid is sucked into the liquid inlet pipe section 42 from the negative pressure port 41. Meanwhile, the high-pressure water flow entering through the necking pipe 421 can impact the washing powder dissolving liquid pumped by the negative pressure, so that the washing powder dissolving liquid and the washing powder dissolving liquid are stirred and mixed in the straight pipe, and the mixing uniformity of the washing powder dissolving liquid and the inflow water flow is greatly improved.

In this embodiment, the downstream portion of the straight pipe 431 is a venturi tube 40, the venturi tube 40 is coaxially disposed downstream of the necking pipe 421 of the liquid inlet pipe section 42, and the minimum external pipe diameter of the necking pipe 421 is smaller than the maximum internal pipe diameter of the venturi tube 40; preferably, the minimum outer tube diameter of the necked tube 421 is less than the minimum inner tube diameter of the venturi 40. By additionally arranging the venturi tube 40 on the liquid outlet tube section, the venturi tube 40 can utilize the water flow to generate negative pressure to pump the washing powder dissolving liquid pumped by the negative pressure port 41 in the upstream straight tube and the high-pressure water injected by the necking tube 421 into the downstream tube together, so that the effect of mixing and throwing the washing powder dissolving liquid and the high-pressure water is realized.

In this embodiment, the venturi tube 40 of the liquid outlet tube section 43 includes a necking section 401, a straight tube section 402, and a flaring section 403 sequentially arranged along the water flow direction, wherein the large aperture end of the necking section 401 is in directional communication with the outlet end of the straight tube 431, and the large aperture end of the flaring section 403 is in directional communication with the downstream water path. The minimum inner pipe diameter of the necking section 401 is larger than the minimum inner pipe diameter of the necking pipe 421 of the outlet part of the liquid inlet pipe section 42 and smaller than the maximum inner pipe diameter of the necking pipe 421 of the outlet part of the liquid inlet pipe section 42.

In this embodiment, the upstream end of the straight tube 431 at the inlet of the liquid outlet tube section 43 is sealed with the outlet of the liquid inlet tube section 42, the downstream end is connected with the large end of the necking section 401 of the venturi tube 40, and the wall of the middle part is provided with a negative pressure port 41 for communicating the inside and the outside of the tube.

In this embodiment, an annular assembly portion 422 protruding radially is provided on the outer wall of the liquid outlet portion of the liquid inlet pipe section 42, and an assembly groove 432 protruding radially and correspondingly inserting and assembling the annular assembly portion 422 is provided on the outer wall of the upstream end of the straight pipe 431; preferably, at least one circle of sealing ring 433 is arranged at the joint of the annular assembly part 422 and the assembly groove 432 and is used for sealing the joint of the liquid inlet pipe section 42 and the liquid outlet pipe section 43, so that the negative pressure suction area 44 formed by the gap between the two is arranged in a sealing way, and negative pressure can be smoothly led to the negative pressure port 41 for extracting detergent dissolution liquid.

In this embodiment, the annular fitting portion 422 is disposed at the large opening end of the necking tube 421 of the liquid inlet pipe section 42, and the axial length of the necking tube 421 is equal to or greater than the axial length of the straight tube 431 and less than the sum of the axial lengths of the straight tube 431 and the necking section 401 of the venturi tube 40.

In this embodiment, the inner pipe diameter of the straight pipe 431 is larger than the maximum inner pipe diameter of the necking section 401, and the downstream end of the straight pipe 431 is connected with the large mouth end of the necking section 401 through a corner.

In this embodiment, the aperture of the negative pressure port 41 is smaller than the maximum internal pipe diameter of the necking section 401 and larger than the minimum internal pipe diameter of the necking pipe 421.

Example IV

As shown in fig. 1 to 8, the present embodiment describes a water tank structure of an automatic dispensing device, which includes a water tank 2 enclosed in a groove shape; at least two mutually independent parts are arranged in the water tank 2, and each part is respectively used for flowing and mixing different additive mixed liquids; the water tank is divided into two parts, namely a first water outlet tank 21 and a second water outlet tank 22, and the bottoms of the two water outlet tanks are respectively provided with at least one outlet for outflow of the mixed detergent solution or the detergent water so as to realize the effect of adding the detergent solution and the detergent water into the washing machine.

Through the arrangement, the water tank of the washing machine can be provided with a plurality of different water outlet tanks, so that different additives can be mixed in the corresponding water outlet tanks, and the problems of mixing different additives and the like are avoided; meanwhile, by arranging two different water outlet tanks in the water tank, the water can be split by utilizing the outlet of the other water outlet tank when one water outlet tank overflows, and the problems that the automatic throwing device overflows from the front side and the like are effectively avoided.

In the embodiment, the tank bottom of the water tank 2 is provided with a separation rib 23 extending upwards vertically, and the separation rib 23 or the separation rib 23 and the side wall of the water tank 2 jointly enclose an independent part inside the water tank to form a first water outlet tank 21; the other part of the water tank 2 constitutes a second water outlet tank 22.

In this embodiment, the partition rib 23 includes a first partition 231 extending in the front-rear direction of the water tank 2 and a second partition 232 extending in the left-right direction of the water tank 2, the rear end of the first partition 231 is in contact with the rear wall of the water tank 2, the front end is connected to the right end of the second partition 232, and the left end of the second partition 232 is in contact with the left side wall of the water tank 2, so that the partition rib 23 partitions the left half side of the middle-rear portion of the water tank 2 into the first water outlet tank 21.

In this embodiment, the bottom wall of the first water outlet tank 21 is provided with a detergent solution outlet 211, and the bottom wall of the first water outlet tank 21 is inclined downward toward the detergent solution outlet 211; preferably, the bottom of the first water outlet tank 21 is an inclined surface gradually inclined downwards from back to front, and the detergent dissolution outlet 211 is positioned at the front side of the first water outlet tank 21; further preferably, the front side of the first water outlet tank 21 near the second partition 232 is provided with a concave groove 212, the side wall of the groove 212 is a conical surface converging downwards from the periphery to the center, and the detergent solution outlet 211 is positioned at the lowest position of the center of the groove 212.

In this embodiment, the front side wall of the water tank is formed by a front side baffle 24 of the water tank, and since the delivery box 5 capable of being pulled out to the front side is installed in the water tank, the front side baffle 24 of the water tank is lower than the other side walls, so that the front side baffle 24 of the water tank is positioned below the delivery box 5 for the delivery box to be pulled out outwards; a certain gap is formed between the second separation part 232 and the front baffle 24 of the water tank, and a main washing opening 221 is arranged at the bottom wall of the water tank 2 at the gap and is positioned in the second water outlet tank 22; preferably, the top end height of the front side baffle 24 is higher than the top end height of the partition rib 23; further preferably, the upper portion of the second partition 232 is provided with a notch 233, so that the top end of at least part of the second partition 232 is lower than the top end of the first partition 231, and the water flow overflowed from the first partition 231 by the first water outlet tank 21 completely enters the second water outlet tank 22 and can be smoothly discharged from the main water outlet 221, thereby further effectively avoiding the overflow of the detergent solution in the first water outlet tank 21.

In this embodiment, the bottom of the second water outlet tank 22 is an inclined surface converging downwards from the periphery to the main washing opening; preferably, the bottom of the second water outlet tank 22 is a slope gradually inclined downward from the rear to the front and from the right to the left so that the main washing outlet 221 positioned at the left front side is positioned at the lowest point of the second water outlet tank 22 for guiding the water in the second water outlet tank 22 to flow out toward the main washing outlet 221.

In this embodiment, a feeding box 5 capable of being pulled outwards is installed at the upper part of the water tank 2, a detergent cavity 51 is arranged on the feeding box 5, an outlet 511 is arranged at the rear side of the detergent cavity 51, the outlet 511 is located above the first water outlet tank 21, and detergent solution flowing out of the outlet 511 from the detergent cavity 51 enters the first water outlet tank 21 and then flows out of the detergent solution outlet 211.

In this embodiment, a water inlet connector penetrating through the water inlet connector is arranged on the rear side wall of the water tank 2, the water inlet connector is communicated with a water inlet structure 8 formed by an integrated waterway in an upper cover 3 arranged at the top of the water tank 2, and is used for feeding water to the water inlet structure 8 on the upper cover 3, and a water outlet of the water inlet structure 8 is positioned above an opening of a washing powder cavity 51 of the feeding box 5, so that water fed from the water inlet flows into the water inlet structure 8 from the water outlet into the washing powder cavity 51, and after washing powder in the washing powder cavity 51 and water are mixed to form a washing powder solution, the washing powder solution flows into a first water outlet tank 21 from a rear side outlet 511 and is discharged and fed through a washing powder solution outlet 211.

Example five

As shown in fig. 1 to 8, in the present embodiment, an automatic dispensing apparatus is described, which includes a water supply path 1 through which a water supply flow flows; a throwing unit for throwing the additive mixture into the water supply waterway 1; the water supply waterway 1 is provided with a pressurizing structure 7 for increasing the water pressure of water flow, and the pressurized water flow carries out high-pressure impact mixing on the additive mixed solution in the water supply flow.

Through the arrangement, the pressurizing structure is utilized to enable the water supply waterway to form high-pressure water flow, so that additive mixed liquid such as washing powder dissolved liquid, washing liquid dissolved liquid and the like in the water supply waterway can be directly impacted at high pressure, the high-pressure water flow can accelerate mixing uniformity, and the throwing effect of throwing additives is further improved; meanwhile, the flow velocity of water flowing into the negative pressure suction structure arranged on the water supply water path can be increased by utilizing high-pressure water flow, so that the generated negative pressure is increased, and the rate of extracting additive mixed liquid such as washing powder dissolving liquid, washing liquid dissolving liquid and the like in the water tank is further increased.

In this embodiment, the pressurizing structure 7 is located at the upstream of the connection position between the throwing unit and the water supply waterway 1, so that the high-pressure water flow formed after pressurization directly performs jet impact on the thrown additive mixture.

In this embodiment, the pressurizing structure 7 is a pressurizing nozzle 70 formed by a conical pipe with a gradually narrowing diameter along the water flow direction.

In this embodiment, the throwing unit includes a negative pressure suction structure 4 connected in series to the water supply waterway 1, and generates negative pressure by using water flow, and a negative pressure port 41 of the negative pressure suction structure 4 is communicated with an outlet of the water tank 2 through a liquid suction pipeline 13, so that additive mixed liquid such as washing powder and/or washing liquid formed in the water tank 2 is sucked into the water supply waterway 1 by using negative pressure, and mixed with the water flow, and then thrown outwards.

In the embodiment, the pressurizing structure 7 is positioned at the inlet of the negative pressure suction structure 4, so that the washing powder dissolving liquid, the washing liquid dissolving liquid and the like which are sucked into the water supply waterway 1 can be directly impacted at high pressure, and the mixing effect of the added additives is further improved; the flow rate of the water flowing into the negative pressure suction structure 4 can be increased, the generated negative pressure is further increased, and the rate of extracting the additive mixture liquid such as the washing powder dissolving liquid, the washing liquid dissolving liquid and the like in the water tank 2 is further increased.

In this embodiment, the negative pressure suction structure 4 includes a liquid suction cavity 45 and a venturi tube 40 connected in series on the water supply waterway 1, the liquid suction cavity 45 is provided with a negative pressure port 41, and the negative pressure port 41 is communicated with the outlet of the water tank 2 through a liquid suction pipeline 13; meanwhile, a pressurizing nozzle 70 is arranged in the liquid pumping cavity 45, an outlet of the pressurizing nozzle 70 is coaxially arranged towards an inlet of the venturi tube 40, a gap which is used for communicating the liquid pumping cavity 45 with the venturi tube 40 is arranged between the pressurizing nozzle 70 and the venturi tube 40, so that the venturi tube 40 can directly generate larger negative pressure by utilizing high-pressure water flow flowing in by the pressurizing nozzle 70, the negative pressure acts on the liquid pumping cavity 45 through the gap, a negative pressure suction area 44 is formed in the liquid pumping cavity 45, and then additive mixed liquid such as detergent solution, washing solution and the like in the water tank 2 is pumped into the water supply waterway 1 through the negative pressure port 41, and the high-pressure water flow and the extracted additive mixed liquid such as detergent solution, washing solution and the like are directly foamed and mixed at high pressure, so that the mixed liquid is directly sprayed out from a throwing port at the downstream of the water supply waterway 1.

Example six

The embodiment describes a control method of an automatic delivery device, which includes,

S100, water is fed into a water tank, and pre-fed washing powder and/or washing liquid flows into the water tank along with the water feeding to form washing powder dissolving liquid;

S200, water is fed into a water supply waterway outside the water tank, negative pressure is formed by water flowing through the water tank, and washing powder dissolving liquid in the water tank is pumped into the water supply waterway by the negative pressure and is thrown outwards along with the water supply water flow.

Through the arrangement, additives such as washing powder, liquid laundry detergent and the like can be dissolved and mixed in the water tank firstly, then are extracted and put into the water supply waterway, so that the dissolution, extraction and put of the additives are carried out step by step, the effect of automatically mixing and putting the additives such as the washing powder, the liquid laundry detergent and the like is realized, and the technical effect that the washing machine can utilize additives in various forms such as the washing powder, the liquid laundry detergent and the like to carry out high-concentration essence washing is achieved.

In this embodiment, the water flowing through the water supply waterway is pressurized by the pressurizing structure to form high-pressure water flow, and the high-pressure water flow is connected with the detergent solution pumped by negative pressure to be mixed, so that the mixing uniformity is improved.

In this embodiment, the pre-put washing powder and/or washing liquid is first put into the putting cavity of the putting box, the water flow entering the water tank directly flows into the putting cavity, the water enters the washing powder and/or washing liquid into the water outlet tank arranged at the bottom of the water tank, and the washing powder and/or washing liquid are mixed in the water outlet tank to form the washing powder dissolving liquid.

Preferably, a mixing structure for improving the mixing uniformity of the washing powder and/or the washing liquid is arranged in the water outlet tank, and the mixing structure can be any existing structure capable of improving the mixing uniformity; for example: the stirring impeller is driven by the driving motor to rotate, and the stirring impeller directly stirs water, washing powder and/or washing liquid in the water tank to form washing powder dissolving liquid.

In this embodiment, the step S100 of supplying water to the water tank and the step S200 of supplying water to the water supply path outside the water tank may be performed simultaneously, or may be performed alternately, for example: step S100 is performed to feed water into the water tank 2 through the water tank water supply channel 11, and step S200 is performed to feed water into the water supply channel 12 outside the water tank 2 to extract and feed the additive mixture such as detergent solution.

As shown in fig. 9, in this embodiment, the control method of the automatic dispensing device includes the following steps,

S1, a water tank water supply waterway 11 is opened, and a throwing water supply waterway 12 is disconnected; feeding water into the water tank 2, and enabling washing powder and/or washing liquid pre-fed into the feeding cavity 52 of the feeding box 5 to flow into a water outlet tank at the bottom of the water tank 2 along with the feeding water;

S2, the water level in the water outlet tank (the water outlet tank can be the first water outlet tank 21 in the embodiment) reaches a set value, the water supply water channel 11 of the water tank and the water supply water channel 12 of the throwing water tank are simultaneously disconnected, and water inflow to the water tank 2 is stopped;

s3, fully mixing the washing powder and/or the washing liquid in the water outlet tank with the water inlet to form washing powder dissolving liquid;

s4, opening the throwing water supply waterway 12 and disconnecting the flume water supply waterway 11; the water enters the water supply waterway 12 outside the water tank 2, negative pressure is formed by water flow, and the washing powder dissolving liquid in the water tank is pumped into the water supply waterway 12 by the negative pressure, and is thrown outwards along with the water flow.

In this embodiment, when the step S3 is executed, the mixing structure disposed in the water outlet tank may start to work synchronously, so as to accelerate the dissolution of the washing powder and/or the washing liquid with water, and improve the uniformity; the mixing structure can be that the stirring impeller is driven by the driving motor to rotate, and the stirring impeller directly stirs water, washing powder and/or washing liquid in the water outlet tank to form washing powder dissolving liquid with higher uniformity; the heating pipe provided in the water outlet tank may heat the water, washing powder and/or washing liquid in the water outlet tank to raise the mixing rate (the mixing structure is not shown in the drawings in the present application).

In this embodiment, when the step S3 is executed, after the water supply time to the water tank is stopped and reaches the set value, and/or after the uniformity of the additive mixture in the water outlet tank is detected and reaches the set value, it is determined that the additive mixture is formed by mixing, and the subsequent step S4 is started.

As shown in fig. 8, in this embodiment, the automatic throwing apparatus 100 is the throwing apparatus 100 according to any one of the first to fifth embodiments, a water supply channel 11 for supplying water to the water tank 2, a throwing water supply channel 12 for extracting the additive mixture in the water tank 2, wherein inlets of the water supply channel 11 and the throwing water supply channel 12 are respectively communicated with two outlets of the water inlet valves 6, and inlets of the water inlet valves 6 are communicated with a water inlet pipe of the washing machine, so that the control effect of selecting one of the water supply channels 11 and 12 is realized by using the switching control of the water inlet valves 6.

Example seven

In this embodiment, a washing machine is described, where the dispensing device 100 according to any one of the first to sixth embodiments is mounted on the washing machine, and the water supply source of the dispensing device 100 is a water inlet pipe of the washing machine; the inlet of each water supply waterway 1 is communicated with the water inlet pipe of the washing machine through a water inlet valve 6, so that washing water can automatically switch and control through the water inlet valve and controllably flow into any one or a combination of the water supply waterways 1.

According to the invention, the adding device 100 is arranged on the washing machine, so that additives of the washing machine directly flow to the nozzle through the water supply waterway 1 or through the adding waterway 9 (the nozzle can be any existing structure, and a technical scheme of adding additive mixed liquid into the washing cylinder in a maximized mode is preferably adopted); the additive of the washing machine can directly flow into the washing cylinder 300 from the waterway of the throwing device 100 and be sprayed to the load to be treated instead of the water containing cylinder 200 outside the washing cylinder 300 by directly spraying the additive into the washing cylinder 300 by the nozzle, so that the effect of directly spraying the additive mixed solution to the load to be treated in the washing cylinder 300 for essence washing is realized. Meanwhile, through the arrangement, the washing machine provided with the throwing device 100 can realize that the additive mixed liquid formed by mixing the additive and a small amount of water in the water supply waterway 1 is directly sprayed onto the load to be treated in the washing drum 300, so that the utilization rate of the thrown additive is obviously improved.

The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.

Claims (10)

1.A delivery device, comprising:

The feeding box is internally provided with a washing powder cavity for feeding washing powder;

a water tank, wherein washing powder in the washing powder cavity is washed into the water tank by utilizing water inflow of the throwing device into the water tank to form washing powder dissolving liquid;

The method is characterized in that:

the water supply waterway is provided with a negative pressure suction structure, and negative pressure is formed by utilizing water flow flowing through the water supply waterway; the negative pressure suction structure is communicated with the water tank, and the washing powder dissolving liquid in the water tank is pumped into the water supply waterway by utilizing negative pressure.

2. The throwing device according to claim 1, wherein the negative pressure suction structure is a venturi tube installed on the water supply pipeline, the venturi tube is provided with a pipe diameter narrowing section and a pipe diameter expanding section which are sequentially arranged, a negative pressure port which is communicated with the inside and the outside of the pipeline is arranged at the joint of the pipe diameter narrowing section and the pipe diameter expanding section, and the negative pressure port is communicated with a detergent dissolution outlet arranged at the bottom of the water tank through a liquid suction pipeline.

3. The throwing device according to claim 1, wherein a water inlet structure is arranged at the top of the water tank and is communicated with a water supply channel of the water tank, the water inlet structure is provided with a water outlet towards a washing powder cavity of the throwing box, and washing powder in the washing powder cavity is flushed into the water tank by utilizing flowing water;

Preferably, the water outlet of the water inlet structure is downwards arranged and positioned above the opening at the top of the washing powder cavity.

4. The dispensing device of claim 1 wherein a dividing rib is provided at the bottom of the trough to divide the lower trough portion into a first outlet trough and a second outlet trough; the bottoms of the first water outlet tank and the second water outlet tank are respectively provided with a washing powder dissolving liquid outlet and a main washing opening, the washing powder dissolving liquid outlet is communicated with a negative pressure opening of a negative pressure suction structure through a liquid suction pipeline, and the main washing outlet is communicated with a throwing waterway of the throwing device.

5. The dispensing device of claim 4, wherein the first water outlet channel and the second water outlet channel are sequentially arranged in front of and behind each other, the first water outlet channel is communicated with the outlet of the washing powder cavity, and washing powder flows in along with the inlet water;

Preferably, the bottom of the first water outlet tank is an inclined plane converging and inclining towards the detergent solution outlet, and the inclined plane is used for guiding the detergent solution in the first water outlet tank to flow towards the detergent solution outlet.

6. The dispensing device of claim 5 wherein the dispensing cartridge further comprises at least one dispensing chamber for receiving a detergent, the dispensing chamber having a water inlet structure disposed at a top of the water tank for dispensing the detergent from the dispensing chamber into the second water outlet of the water tank;

Preferably, the bottom of the second water outlet tank is an inclined plane converging and inclined towards the main washing outlet and is used for guiding the liquid in the second water outlet tank to flow towards the main washing outlet.

7. The dispensing device of claim 6, wherein the water tank is provided with a drawer part which can be pulled out from the front side, the drawer part forms a dispensing box, and the dispensing box is provided with at least one washing powder cavity for containing washing powder and at least one dispensing cavity for containing washing agent;

Preferably, the front side of the water tank is provided with an opening for the drawer to be drawn out, and the front side wall of the water tank is formed by a vertically extending front side baffle plate positioned below the opening, and the top end of the front side baffle plate is higher than the top end of the separation rib.

8. A dispensing device according to any one of claims 4 to 7, wherein the outlet of the water supply circuit and the outlet of the dispensing circuit form a detergent dispensing port and a detergent dispensing port of the dispensing device, respectively;

Or the outlet of the water supply waterway is communicated with the throwing waterway, and the outlet of the throwing waterway forms a throwing port shared by the detergent dissolving liquid and the washing liquid dissolving liquid of the throwing device.

9. A dispensing device according to any one of claims 1 to 8, further comprising a water tank water supply channel, wherein the top of the water tank is provided with an upper cover, the upper cover is provided with a water inlet structure, and the water tank water supply channel is communicated with the water inlet structure; the water outlet of the water inlet structure is arranged towards the washing powder cavity at the lower part and is used for feeding water into the water tank through the washing powder cavity.

10. A washing machine comprising a washing tub for containing a load to be treated, characterized in that: the device also comprises a throwing device as claimed in any one of claims 1 to 9, wherein the inlet of each water supply waterway of the throwing device is communicated with the water inlet pipe of the washing machine, and the throwing port of the throwing device is communicated with the inside of the washing cylinder.