CN216602801U - Liquid feeding device and washing equipment - Google Patents

Abstract

The utility model relates to a liquid feeding device and washing equipment. This liquid dispensing device includes: the liquid box assembly comprises a box body, a liquid storage cavity and a mixed flow channel which are arranged in the box body, and a liquid pumping port and a main outlet which are arranged on the box body; and a pump disposed outside the case and including a water inlet, a solution inlet, and a solution outlet, wherein the mixing flow channel is provided at a bottom of the case and has a mixed flow inlet and a mixed flow outlet, the mixed flow outlet (142) communicates with the main outlet, and wherein the solution inlet communicates with the liquid suction port, the solution outlet communicates with the mixed flow inlet, and the pump can suction liquid from the liquid storage chamber through the liquid suction port and discharge the liquid into the mixing flow channel through the mixed flow inlet, and the liquid flowing through the mixing flow channel is discharged through the main outlet.

Description

Liquid feeding device and washing equipment

Technical Field

The utility model relates to the field of household appliances, in particular to a liquid feeding device and washing equipment comprising the same.

Background

With the increasing living standard of people, washing equipment such as washing machines and dish-washing machines become one of the necessary household appliances in family life. In order to increase the degree of automation, washing machines are usually provided with a device for dispensing the washing solution. In the putting device, various washing products such as detergent, softener, washing powder and the like added by a user are fully mixed with water and then are flushed into a washing barrel of washing equipment, so that automatic washing operation is realized.

In some existing washing apparatuses, a shower assembly is generally used as a dispensing device to dispense a washing solution. Be equipped with the liquid passage that supplies liquid to flow in the gondola water faucet subassembly, the washing solution that washing product and clear water mix passes through liquid passage and carries, and the gondola water faucet subassembly still is equipped with the hole that sprays that communicates with liquid passage is used for discharging liquid. However, the shower head assembly not only has a large volume and high purchasing cost, but also needs to be assembled through a hot plate welding process, thereby increasing the processing and manufacturing difficulty and the production cost.

In other washing apparatuses, the dosing device employs a pump to draw and discharge the washing solution. However, there is a variation in the pump pressure, resulting in an unstable flow rate of the washing solution. When the flow rate of the washing solution is small, the washing solution tends to remain in the pipe thereof. When the flow rate of the washing solution is large, the washing solution is easy to flow back in the pipeline, and even flows back to a water pipe of domestic water when the flow rate of the washing solution is serious, so that pollution is caused.

Therefore, how to reduce the volume of the feeding device, the processing and manufacturing difficulty and the production cost, and how to avoid the residue of the washing solution in the pipeline and avoid the washing solution from flowing back to the water pipe of the domestic water is a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

Therefore, the present invention is directed to a liquid dispensing device and a washing apparatus comprising the same. The liquid feeding device has the advantages of small volume, easiness in assembly, small processing and manufacturing difficulty and low production cost, and avoids the liquid residue in the pipeline of the feeding device, thereby further avoiding the pollution problem caused by the backflow of the liquid.

The utility model relates to a liquid dispensing device, comprising: the liquid box assembly comprises a box body, a liquid storage cavity and a mixed flow channel which are arranged in the box body, and a liquid pumping port and a main outlet which are arranged on the box body; and a pump disposed outside the case and including a water inlet, a solution inlet, and a solution outlet. The mixed flow channel is arranged at the bottom of the box body and is provided with a mixed flow inlet and a mixed flow outlet, the mixed flow outlet is communicated with the main outlet, the solution inlet is communicated with the liquid pumping port, the solution outlet is communicated with the mixed flow inlet, the pump can pump liquid from the liquid storage cavity through the liquid pumping port and discharge the liquid into the mixed flow channel through the mixed flow inlet, and the liquid flowing through the mixed flow channel is discharged through the main outlet.

In one embodiment, the cartridge comprises a first cartridge and a second cartridge, the first cartridge is disposed within the second cartridge, the reservoir is disposed within the first cartridge, and the total outlet is disposed at a bottom of the second cartridge.

In one embodiment, the flow mixing channel is disposed at the bottom of the first cartridge body.

In one embodiment, the flow mixing channel is arranged at the bottom of the second box body.

In one embodiment, the bottom of the mixing channel is provided with a leakage hole, and the liquid can flow into the second box body through the leakage hole and then be discharged through the main outlet.

In one embodiment, the mixing channel is integrally formed with the first box body.

In one embodiment, the liquid box assembly further comprises a flushing chamber arranged in the first box body, and the mixed flow outlet of the mixed flow passage is communicated with the flushing chamber.

In one embodiment, the mixing flow outlet of the mixing flow channel is located in the flush chamber.

In one embodiment, the flushing chamber has a flushing chamber opening at one end near the mixing channel, which flushing chamber opening communicates to the main outlet.

In one embodiment, the cartridge further comprises a cover plate connected to the first cartridge to cover the reservoir and having a first access opening corresponding to the reservoir and a second access opening corresponding to the flush chamber.

In one embodiment, the cover plate also has a return baffle extending obliquely from its main body portion into the flush chamber towards the mixing channel.

In one embodiment, the access port is provided on one end of the cover plate, the cover plate further having an extraction conduit extending from a main body portion thereof into the reservoir chamber, the extraction conduit communicating to the access port.

In one embodiment, the second container has a guide provided on an inner surface thereof, and the first container is mounted in the second container through the guide.

In one embodiment, the second container has a mounting bracket provided on an end wall thereof, and the pump is provided on the mounting bracket.

In one embodiment, the second container has a first opening corresponding to the solution inlet and a second opening corresponding to the solution outlet.

In one embodiment, the liquid cartridge assembly further comprises a drainage channel disposed within the first cartridge body, the drainage channel having a drainage inlet and a drainage outlet, the solution outlet communicating with the drainage inlet, the drainage outlet communicating with the mixed flow inlet.

In one embodiment, the pump further comprises a water inlet.

In one embodiment, the pump further comprises a water outlet which is communicated with the other mixed flow inlet of the mixed flow channel.

The utility model also relates to a washing device comprising a liquid dosing device as described above.

In one embodiment, the washing apparatus is a washing machine or a dishwasher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the showings are for the purpose of illustrating certain embodiments of the utility model only and not for the purpose of limiting the utility model to all embodiments thereof. In the drawings:

FIG. 1 shows an overall schematic view of a liquid delivery device according to an embodiment of the utility model;

FIG. 2 is an exploded schematic view of a liquid delivery device according to one embodiment of the present invention, showing a liquid cartridge assembly and a pump;

FIG. 3 shows a schematic diagram of a pump of a liquid delivery device according to an embodiment of the utility model;

FIG. 4 illustrates a partial schematic view of a liquid cartridge assembly of a liquid delivery device according to an embodiment of the present invention, showing a first cartridge and a cover included with a cartridge body of the liquid cartridge assembly;

figure 5 shows a schematic view of a first cartridge of the liquid cartridge assembly according to figure 4;

FIG. 6 shows a schematic end view of a first cartridge and a cover plate of the cartridge of the liquid cartridge assembly according to FIG. 4;

figure 7 shows a schematic view of the interior of a first cartridge of the liquid cartridge assembly according to figure 4;

FIG. 8 shows a top view of a first cartridge of the cartridges of the liquid cartridge assembly according to FIG. 4;

FIG. 9 shows a cross-sectional view A-A of the first cassette according to FIG. 8;

FIG. 10 shows a bottom schematic view of a first cartridge of the liquid cartridge assembly according to FIG. 4;

FIG. 11 shows a schematic view of a cover plate of a cartridge body of the liquid cartridge assembly according to FIG. 4;

fig. 12 shows a schematic cross-sectional view of the cover plate according to fig. 11;

FIG. 13 illustrates a partial schematic view of a liquid cartridge assembly of a liquid delivery device according to an embodiment of the present invention, showing a second cartridge included with a cartridge of the liquid cartridge assembly;

fig. 14 shows a schematic assembly of a first cartridge and a second cartridge comprised by a cartridge of a liquid cartridge assembly of a liquid delivery device according to an embodiment of the utility model;

figure 15 shows a schematic view of the first and second cases according to figure 14 assembled together;

FIGS. 16A and 16B show a schematic liquid delivery diagram of a liquid delivery device according to an embodiment of the present invention;

FIG. 17 shows a schematic view of a liquid delivery device according to another embodiment of the utility model;

figure 18 shows a schematic view of a second cartridge comprised by the cartridge of the liquid delivery device according to figure 17;

fig. 19 shows a schematic view of another orientation of the second container according to fig. 17; and

fig. 20 shows a schematic view of a first cartridge of a liquid delivery device according to a further embodiment of the utility model.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the utility model, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.

Unless defined otherwise, technical or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The use of the terms "comprising," "including," or "having" and the like, mean that the elements or items listed before or after the term, and the equivalents thereof, are included without excluding other elements or items. The terms "connected" or "in communication with," and the like, are not limited to physical or mechanical connections or communications shown in the drawings, but may include connections or communications equivalent thereto, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Fig. 1 shows an overall schematic view of a liquid dosing device according to an embodiment of the utility model, fig. 2 shows an exploded schematic view of the dosing device of fig. 1, and fig. 3 shows a schematic view of the pump of fig. 1.

As shown in fig. 1 and 2, the liquid dispensing device 100 includes a liquid cartridge assembly 1 and a pump 2. The liquid box assembly 1 comprises a box body 10, liquid storage cavities 11 and 12 and a mixed flow channel 14 which are arranged in the box body 10, and a liquid pumping port 15 and a general outlet 16 which are arranged on the box body. The reservoir and the flow channel are not shown in figures 1 and 2 because they are located inside the cartridge. The reservoir is used to store a liquid, such as a laundry product, e.g., detergent, softener, etc., that is dispensed by a user. For example, in order to store detergent, softener, etc. separately, a plurality of storage chambers, such as detergent chambers, softener chambers, etc., may be provided in the case 10, depending on the particular application. It will be appreciated by those skilled in the art that the liquid in the reservoir may be a liquid other than a detergent product, and the present invention is not limited in this regard. The mixing channel is a channel which is through from front to back and is used for transmitting and throwing liquid. A pump 2, for example a hydraulic pump, is arranged outside the cassette 10. For example, the pump is fixed to the outside of the liquid cartridge assembly 1 by a fastener such as a screw. The pump 2 is used for pumping liquid from the liquid storage cavity through the liquid pumping port 15 and discharging mixed solution of the liquid and water into the mixed flow channel. The liquid flowing through the mixing channel is finally discharged outside the dosing device 100 through the main outlet 16, for example into a washing chamber of a washing apparatus, for example a washing tub of a washing machine or dishwasher.

As shown in fig. 2, the case 10 includes a first case 101, a second case 102, and a cover 103. Referring again to fig. 1, the first container 101 is disposed in the second container 102, and the cover 103 is coupled to the first container 101. For example, the cover plate 103 is snapped on the first container 101 by means of a snap, etc. to cover the cavity inside the first container 101, but the utility model is not limited thereto. In other examples, the case 10 may include only a single case and cover.

As shown in fig. 3, the pump 2 includes a water inlet 21, a solution inlet 22, and a solution outlet 23. For example, a water pipe of a device (e.g. a washing device) having the liquid dosing device of the present invention is connected to said water inlet 21 to be able to supply water to the pump 2. Of course, in other embodiments of the utility model, the pump may not have a water inlet. In this case, a "pump + separate water inlet pipe" is used to supply water into the mixing channel. The solution inlet 22 is for example the inlet of the washing product into the pump 2. The solution outlet 23 is an outlet from the pump 2 for washing solution, for example formed by mixing washing product and water.

As shown in fig. 4 and 5, a plurality of reservoirs, for example, two reservoirs 11, 12, are disposed in the first container 101. For example, reservoir 11 is for storing a user-administered softener, and reservoir 12 is for storing a user-administered detergent. The cover plate 103 covers each of the liquid storage chambers 11, 12 and has a plurality of corresponding dispensing ports. The reservoir chambers 11, 12 are separated from each other by a chamber wall in the first container 101, and a fully enclosed chamber is formed by the cover plate 103. The reservoirs 11, 12 begin at least at one end of the first container 101, such as the lower left end in fig. 4 and 5. In other examples, the reservoirs 11, 12 may be disposed through opposite ends of the first container 101.

Further, as shown in fig. 6 to 9, the mixing flow path 14 of the liquid cartridge assembly 1 is provided at the bottom of the first cartridge body 101 and has a mixed flow inlet 141 and a mixed flow outlet 142. The mixing channel 14 is a front-rear through channel. As shown in fig. 6, the mixed flow inlet 141 is provided on one end portion of the first case 101, i.e., an end portion near the pump 2. Referring to fig. 16A, the solution outlet 23 of the pump 2 communicates with the mixed flow inlet 141. The mixed flow outlet 142 is, for example, in communication with the main outlet 16, such that liquid flowing through the mixed flow channel 14 can be discharged from the main outlet 16 to the outside of the dosing device 100, for example into a washing chamber of a washing machine or dishwasher. For example, the mixing channel 14 may be integrally formed with the first box 101, for example, by an injection molding process. Therefore, the feeding device does not need to provide a hot plate welding process for assembling each part, not only can effectively ensure the tightness of the mixed flow channel and the reliability of the feeding function, but also can reduce the processing and manufacturing difficulty and the production cost of the liquid feeding device. In addition, the liquid feeding device does not need secondary processing, so that the qualification rate of parts can be effectively improved, and waste caused by defective products is reduced.

Referring again to fig. 4 and 5, the liquid cartridge assembly 1 further comprises a flush chamber 13 provided in the first cartridge body 101. For example, the user may dispense wash powder into the flush chamber 13. Of course, the utility model is not limited thereto and the user may also dispense cleaning solution, softener, or the like into the flush chamber. In addition, the flush chamber 13 may also contain the liquids or wash solutions described above. The mixing flow outlet 142 of the mixing flow channel 14 communicates with the flushing chamber 13. For example, the side walls of the mixing channel 14 extend into the flushing chamber 13, as shown in fig. 7 to 9, and the side walls of the mixing channel 14 can extend to the lower part of the flushing chamber 13. That is, the mixed flow outlet 142 may be located in the flush chamber 13. As shown in fig. 7 to 9, the flush chamber 13 has a flush chamber opening 131 at an end near the mixing channel 14, the flush chamber opening 131 being connected to the main outlet 16 of the liquid cartridge assembly 1. For example, the flush chamber opening 131 is open. For example, the flush chamber opening 131 communicates through a conduit to the main outlet 16. Referring again to fig. 7 to 9, the flushing chamber 13 is closed at the end remote from the mixing channel 14. Thus, the flush chamber of the present invention constitutes a semi-enclosed chamber. Through the mixed flow channel extending into the flushing chamber and the semi-closed flushing chamber, when the pressure of the pump 2 is higher, the washing solution formed by mixing water and the washing product can be flushed into the flushing chamber, so that the washing product can be secondarily dissolved in the flushing chamber, and the washing product which is not fully diluted and dissolved is prevented from entering a washing chamber of washing equipment. In addition, when the washing chamber is filled with washing products (such as washing powder), the liquid flushed into the washing chamber can also dissolve the washing products in the washing chamber.

As shown in fig. 10, the bottom of the mixing channel 14 is provided with a leakage hole 143 so that the liquid can flow into the second container 102 through the leakage hole 143 and then be discharged through the main outlet 16. Referring again to fig. 10, the number of the leakage holes 143 is three, but the present invention is not limited thereto, and the number of the leakage holes 143 may be one, two, or more. In addition, the shape of the leak 143 is not limited by the present invention. By arranging the leak 143 at the bottom of the mixed flow channel 14, when the pressure of the pump 2 is low and the flow rate of the liquid (i.e. the washing solution) is low, the liquid can be discharged from the feeding device through the leak, and the liquid is prevented from remaining in the mixed flow channel to cause pollution; when the pressure of the pump 2 is larger, so that the flow of the liquid is larger, the liquid returned by the flushing chamber can be discharged from the leakage hole, and the pollution caused by the liquid flushing back to the mixing flow passage is avoided.

As shown in fig. 4 and 11, the cover plate 103 included in the cartridge 10 includes first dispensing ports 1031, 1032 corresponding to the reservoirs 11, 12 in the first cartridge 101. The cover plate 103 also comprises a second dosing port 1033, corresponding to the flushing chamber 13 in the first cartridge 101. In some examples, the cover plate 103 further includes drop flaps 1034, 1035 corresponding to the first drop ports 1031, 1032.

As shown in fig. 4 and 12, the cover plate 103 also has a return flow baffle 1036 extending obliquely into the flush chamber 13 from its main body portion toward the mixing channel 14. For example, a return baffle 1036 extends from the bottom surface of the cover plate 103. The bottom surface of the cover plate 103 refers to a surface of the cover plate 103 facing the inside of the first container 101. The term "obliquely extending" used herein means that the angle formed by the return baffle 1036 and the bottom surface of the cap plate 103 is greater than 0 degree and equal to or less than 90 degrees. With the above-mentioned backflow baffle 1036, when the pressure of the pump 2 is higher, so that the liquid (i.e. the washing solution) flows into the washing chamber at a higher rate, the liquid can form backflow under the action of the backflow baffle and the end wall of the washing chamber far from the mixing channel, so that the washing product is further diluted and dissolved, and the splashing of the liquid is avoided, so that the components outside the dispensing device are not polluted.

Referring to fig. 11 and 12, the liquid drawing port 15 of the liquid cartridge assembly 1 may be provided on one end portion of the cover plate 103. In other examples, the drawing port 15 may be provided on the first container 101. Referring back to fig. 4, the liquid drawing port 15 is located directly above the mixing channel 14. In addition, the cover plate 103 has respective extraction conduits 1037 extending from a main body portion thereof into the liquid storage chambers 11, 12, the extraction conduits 1037 communicating to the liquid extraction port 15. As shown in fig. 11 and 12, the extraction pipe 1037 is located in the vicinity of the liquid extraction port 15 to save mounting parts and mounting space. For example, the extraction conduit 1037 may be a separate conduit or a conduit integrally formed with the cover plate 103. For example, the number of extraction lines 1037 is two and the number of extraction ports 15 is also two, corresponding to the two reservoir chambers 11, 12 of the embodiment of the present invention. However, in other examples, the number of the drawing port 15 may be one. As shown in fig. 16A, the solution inlet 22 of the pump 2 communicates with the liquid suction port 15, and the solution outlet 23 of the pump 2 communicates with the mixed flow inlet 141. When the pump 2 is operated, the washing product in the reservoirs 11, 12 can be pumped by the pump 2 from the pumping port 15 into the chamber of the pump 2 and discharged from the solution outlet 23 into the mixing channel 141 after mixing with water entering from the water inlet 21 of the pump.

As shown in fig. 13, the second container 102 of the present invention has a rail 1021 on the inner surface thereof, and the first container 101 is installed in the second container 102 through the rail 1021. As shown in fig. 14, the guide 1021 is a slide on the bottom surface of the second container 102, and the bottom of the first container 101 is correspondingly provided with a protrusion matching with the slide, so that the first container 101 can slide into the second container 102 and be stable. As shown in fig. 14 to 15, the first container 101 can be slid into the second container 102 from the right side to the left side in the drawing. It will be appreciated by those skilled in the art that the manner of connection between the first and second housings is not limited to the rails described herein. In other examples, the first and second boxes may be connected by mating retaining recesses and retaining protrusions.

Referring to fig. 13 to 15, a mounting bracket 1022 is provided on an end wall of the second container 102, which is the end wall of the second container 102 near the drawing port 15 on the cover 103, i.e., the end wall on the left side in fig. 14 to 15. As shown in fig. 1, the pump 2 is disposed on the mounting bracket 1022. For example, the mounting frame 1022 may be fixed to the end wall of the second container 102 by a fastener, or may be integrally formed with the second container 102. For example, the shape of the mounting frame 1022 matches the shape of the pump, i.e., the shape of the mounting frame 1022 is determined by the outer shape of the pump 2, to reduce unnecessary installation space. For example, the mounting bracket 1022 of the second casing 102 is provided with mounting holes, and the pump 2 is fixed to the mounting bracket 1022 by screws. In addition, in order to further reduce the installation space, the pump 2 is disposed near the liquid drawing port 15.

Further, referring to fig. 13 to 15, the total outlet 16 of the liquid cartridge assembly 1 of the present invention is provided at the bottom of the second container 102. For example, the main outlet 16 is located below the flush chamber 13. Of course, the present invention is not limited to the location of the overall outlet 16.

Referring again to fig. 13, the second container 102 is provided with a first opening 1023 corresponding to the solution inlet 22 of the pump 2 and a second opening 1024 corresponding to the solution outlet 23 of the pump 2. In other examples, only one opening corresponding to the solution inlet 22 and the solution outlet 23 may be provided on the second container 102.

When the pump 2 is mounted on the second casing 102 (at this time, the first casing 101 and the cover plate 103 are assembled to the second casing 101), the solution inlet 22 of the pump 2 is inserted into the first opening 1023 and the solution outlet 23 of the pump 2 is simultaneously inserted into the second opening 1024, and when the pump 2 is completely pushed into the mounting frame 1022, the solution inlet 22 is inserted into the liquid suction port 15 and the solution outlet 1023 is inserted into the mixed flow inlet 141. The completed delivery device is shown in figures 16A and 16B.

Referring to fig. 16A to 16B, the working principle of the dispensing device of the present invention is described in detail below. When the pump 2 is operated, the washing liquid product such as detergent, softener and the like in the reservoir chambers 11, 12 is pumped into the chamber of the pump 2 after passing through the pumping port 15 and the solution inlet 22, as indicated by arrow D in fig. 16A to 16B, and the washing liquid forms a washing solution after being mixed with water (as indicated by arrow E in the drawing) simultaneously pumped into the chamber of the pump 2, and the washing solution is discharged into the mixing flow channel 14 through the solution outlet 23. When the pressures of the pumps 2 are different, there are several cases as follows. First, when the pressure of the pump 2 is small so that the flow rate of the washing solution is small, the washing solution can flow out from the orifice 143 at the bottom of the mixing channel 14 at the bottom of the first container 101, enter the second container 102, and finally be discharged into, for example, a washing chamber of the washing apparatus through the main outlet 16 at the bottom of the second container 102, as shown by an arrow a in fig. 16A to 16B. Secondly, when the pressure of the pump 2 is moderate so that the flow rate of the washing solution is moderate, part of the washing solution can flow out from the mixed flow outlet 142 located in the mixed flow passage 14, then flow out from the adjacent flushing chamber opening 131 (in the embodiment without the flushing chamber 13, it can flow out only from the mixed flow outlet 142), enter the second box body 102, and finally be discharged through the main outlet 16 as well, as shown by the arrow B in fig. 16A to 16B. Thirdly, when the pressure of the pump 2 is high so that the flow rate of the washing solution is high, part of the washing solution can be flushed into the flush chamber 13, creating a backflow in the flush chamber 13, then out through the flush chamber opening 131, and finally also discharged through the main outlet 16, as indicated by the arrow C in fig. 16A to 16B. When the washing powder is put into the washing chamber, the washing solution can fully dilute and dissolve the washing powder, and the discharge of the washing solution mixed with the washing powder is also shown by an arrow C. Therefore, the feeding device can realize effective discharge under different pump pressures, fully avoids the residue of liquid in the mixed fluid channel, and further avoids the pollution problem caused by liquid backflow.

A liquid dispensing device 100 according to another embodiment of the present invention is described below with reference to fig. 17 to 19. Structures or features in fig. 17 to 19 having the same or similar functions as those in fig. 1 to 15 are denoted by the same or similar reference numerals. Only the differences between the two embodiments are described in detail below.

As shown in fig. 17 to 19, the liquid dispensing device 100 is different from the dispensing device 100 shown in fig. 1 to 15 in that the mixing channel 14 of the liquid dispensing device 100 is disposed at the bottom of the second container 102. Further, the mixing inlet 141 of the mixing channel 14 communicates with the second opening 1024 of the second case 102, for example, integrally formed therewith. In some examples, the mixing channel 14 is welded to the second box 102 by a hot plate welding process. In some examples, the dosing device 100 also differs from the dosing device 100 shown in fig. 1 to 15 in that no weep holes are provided in the bottom of the mixing channel 14. In these instances, liquid may remain in the mixing channel.

A first cartridge 101 of a liquid dispensing device according to a further embodiment of the present invention will be described with reference to fig. 20. Structures or features in fig. 20 having the same or similar functions as those in fig. 1 to 19 are denoted by the same or similar reference numerals. Only the differences between the two embodiments are described in detail below.

The pump 2 of the liquid feeding device of the foregoing embodiment adopts a liquid circulation manner of upper liquid inlet and lower liquid outlet, that is, the solution inlet 22 is located at the top of the pump, the solution outlet 23 is located at the bottom of the pump (as shown in fig. 1 to 3), and a vertical liquid guide tube is arranged between the solution inlet 22 and the solution outlet 23. In the liquid dispensing device using the first container 101 shown in fig. 20, the pump is in liquid communication with the liquid inlet from the top and the liquid outlet from the top, that is, the solution inlet 22 and the solution outlet 23 are both located at the top of the pump (not shown in fig. 20). In this case, the pump further includes a water outlet port communicating with the other mixed flow inlet port 141' of the mixing flow path 14 for discharging water into the mixing flow path. The other mixed flow inlet 141' in fig. 20 is provided at one end of the mixing flow path 14 near the pump 2, and is the same or similar in position and shape as the mixed flow inlet 141 of the embodiment in fig. 5 to 9.

In order to communicate the solution outlet 23 of the pump 2 with the flow mixing channel 14, the liquid cartridge assembly 1 further comprises a flow guide 17 disposed in the first cartridge body 101. For example, the drainage duct 17 is provided at the end of the first cassette close to the pump 2. The flow guide 17 has a flow guide inlet 171 and a flow guide outlet 172. The solution outlet 23 of the pump 2 communicates with the drain inlet 171 (not shown), and the drain outlet 172 communicates with the mixed flow inlet 141 (not shown). As shown in fig. 20, the drainage channel 17 is a vertical channel which opens onto the side wall of the mixing channel 14 and communicates with the mixing channel. In this case, the mixed flow inlet 141 is provided on a side wall of the mixed flow path, and the solution outlet 23 is communicated with the mixed flow inlet 141. For example, the mixed flow inlet 141 is located near or at a distance from another mixed flow inlet 141'.

When the pump 2 is in operation, water flows from the water inlet 21 into the chamber in the pump and through the water outlet into the mixing channel, while washing liquid flows from the solution inlet 22 into the chamber in the pump and is discharged from the solution outlet 23 into the flow guide 17 and further into the mixing channel. In the mixed flow path, the wash liquid and water are mixed to form a wash solution.

In such an embodiment, the liquid dosing means is adapted according to the form of the pump, and thus the flexibility is high.

The above-described dosing device of the utility model may be applied in a washing apparatus, such as a washing machine or a dishwasher.

The liquid feeding device disclosed by the utility model has the advantages of smaller volume, easiness in assembly, smaller processing and manufacturing difficulty and lower production cost, and avoids the liquid from remaining in a pipeline of the feeding device and further avoids the pollution problem caused by the backflow of the liquid. The washing device of the utility model also has corresponding advantages.

In addition, the technical features disclosed in the above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the utility model, so as to achieve the purpose of the utility model.

Claims (20)

1. A liquid dispensing device, comprising:

the liquid box assembly (1) comprises a box body (10), liquid storage cavities (11, 12) and a mixing flow channel (14) which are arranged in the box body, and a liquid pumping port (15) and a total outlet (16) which are arranged on the box body; and

a pump (2) arranged outside the cartridge (10) and comprising a solution inlet (22) and a solution outlet (23),

wherein the mixing flow channel (14) is arranged at the bottom of the box body (10) and is provided with a mixing flow inlet (141) and a mixing flow outlet (142), the mixing flow outlet (142) is communicated with the main outlet (16), and

wherein the solution inlet (22) is communicated with the liquid pumping port (15), the solution outlet (23) is communicated with the mixed flow inlet (141), and the pump (2) can pump the liquid from the liquid storage cavity (11, 12) through the liquid pumping port (15) and discharge the liquid into the mixed flow channel (14) through the mixed flow inlet (141), and the liquid flowing through the mixed flow channel (14) is discharged through the main outlet (16).

2. Liquid delivery device according to claim 1, wherein the cartridge (10) comprises a first cartridge (101) and a second cartridge (102), the first cartridge (101) being arranged in the second cartridge (102), the reservoir (11, 12) being arranged in the first cartridge (101), and the main outlet (16) being arranged at the bottom of the second cartridge (102).

3. Liquid delivery device according to claim 2, wherein the mixing channel (14) is arranged at the bottom of the first container (101).

4. Liquid delivery device according to claim 2, wherein the mixing channel (14) is arranged at the bottom of the second container (102).

5. A liquid dispensing device according to claim 3, characterized in that the bottom of the mixing channel (14) is provided with a leakage hole (143), through which leakage hole (143) the liquid can flow into the second container (102) and be discharged through the main outlet (16).

6. A liquid delivery device according to claim 3, wherein the mixing channel (14) is integrally formed with the first container (101).

7. The liquid delivery device according to claim 3 or 4, wherein the liquid cartridge assembly (1) further comprises a flushing chamber (13) arranged in the first cartridge body (101), and the mixed flow outlet (142) of the mixed flow channel (14) is in communication with the flushing chamber (13).

8. Liquid delivery device according to claim 7, wherein the mixing flow outlet (142) of the mixing flow channel (14) is located in the flushing chamber (13).

9. Liquid dosing device according to claim 8, characterized in that the flushing chamber (13) has a flushing chamber opening (131) at one end near the mixing channel (14), the flushing chamber opening (131) being connected to the main outlet (16).

10. Liquid delivery device according to claim 7, wherein the cartridge (10) further comprises a cover plate (103), the cover plate (103) being connected to the first cartridge (101) to cover the reservoir chamber (11, 12) and having a first delivery opening (1031, 1032) corresponding to the reservoir chamber (11, 12) and a second delivery opening (1033) corresponding to the flushing chamber (13).

11. A liquid delivery device according to claim 10, wherein the cover plate (103) further has a return baffle (1036) extending obliquely from its main portion into the flushing chamber (13) towards the mixing channel (14).

12. Liquid delivery device according to claim 10, wherein the liquid withdrawal port (15) is provided at one end of the cover plate (103), the cover plate (103) further having an extraction duct (1037) extending from a main body portion thereof into the reservoir (11, 12), the extraction duct (1037) being connected to the liquid withdrawal port (15).

13. Liquid delivery device according to claim 3 or 4, wherein the second container (102) is provided with a rail (1021) on its inner surface, and wherein the first container (101) is mounted in the second container (102) via the rail (1021).

14. A liquid delivery device according to claim 3 or 4, wherein the second container (102) has a mounting (1022) provided on an end wall thereof, the pump (2) being provided on the mounting (1022).

15. A liquid delivery device according to claim 3, wherein the second container (102) is provided with a first opening (1023) corresponding to the solution inlet (22) and a second opening (1024) corresponding to the solution outlet (23).

16. The liquid delivery device of claim 3, wherein the liquid cartridge assembly (1) further comprises a flow guide (17) disposed in the first cartridge body (101), the flow guide (17) having a flow guide inlet (171) and a flow guide outlet (172), the solution outlet (23) communicating with the flow guide inlet (171), the flow guide outlet (172) communicating with the mixed flow inlet (141).

17. A liquid dosing device according to claim 16, characterized in that the pump (2) further comprises a water inlet (21).

18. Liquid delivery device according to claim 17, wherein the pump (2) further comprises a water outlet in communication with a further mixing flow inlet (141') of the mixing flow channel (14).

19. A washing device, characterized in that it comprises a liquid dosing device according to any of claims 1-18.

20. A washing device according to claim 19, characterized in that the washing device is a washing machine or a dishwasher.

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