Feeding device and washing machine

Abstract

The invention relates to a putting device and a washing machine, the putting device comprises a putting box and a negative pressure compensation structure, the putting box is provided with a water inlet, a putting opening and a mixing channel, the water inlet is communicated with the mixing channel, the putting opening is communicated with the mixing channel and a putting cavity, and the negative pressure compensation structure is arranged in the putting cavity. And the negative pressure compensation structure is used for introducing compensation gas into the mixing channel. The releasing device is high in reliability.

Description

Technical Field

[0001] The present disclosure relates to the technical field of washing machines, and in particular to a dispensing device and a washing machine. Background Art

[0002] In the related art, the delivery device of the washing machine is used to deliver the washing liquid into the drum, for example, the water in the water inlet pipe of the washing machine can flush the washing liquid in the delivery device into the drum. At present, the reliability of the delivery device is poor. Summary of the invention

[0003] The purpose of the present disclosure is to provide a delivery device with high reliability.

[0004] In order to achieve the above-mentioned purpose, the present disclosure provides a delivery device, including a delivery box and a negative pressure compensation structure, the delivery box is provided with a water inlet, a delivery port and a mixing channel, the water inlet is connected to the mixing channel, the delivery port is connected to the mixing channel and the delivery chamber, and the negative pressure compensation structure is used to introduce compensation gas into the mixing channel.

[0005] Optionally, the negative pressure compensation structure includes a compensation chamber communicated with the mixing channel, and compensation gas is arranged in the compensation chamber.

[0006] Optionally, the compensation chamber is connected to the mixing channel through a connecting port, and the distance between the connecting port and the delivery port is 0 mm to 600 mm.

[0007] Optionally, the volume of the compensation cavity is less than or equal to 30 cm 2 .

[0008] Optionally, the volume of the compensation cavity is 5 cm 2 ~15cm 2 .

[0009] Optionally, the negative pressure compensation structure includes a compensation piece, the compensation piece includes the compensation chamber, a first end and a second end, the first end is closed, and the second end includes a connecting port, the connecting port connects the compensation chamber and the mixing channel.

[0010] Optionally, the compensating piece is constructed in one of a cylindrical, spherical, ellipsoidal, polygonal column, and polygonal pyramid shape.

[0011] Optionally, the negative pressure compensation structure includes a compensation piece, the compensation piece includes the compensation chamber, a first end and a second end, the first end and the second end both include a connecting port, and each of the connecting ports connects the compensation chamber and the mixing channel.

[0012] Optionally, the compensating member is configured as a compensating tube, the compensating tube is configured as a U-shaped tube, and the two ends of the compensating tube in its own extension direction are configured as the first end and the second end.

[0013] Optionally, a first flow path of the compensation chamber between the two communicating ports is longer than a second flow path of the mixing channel between the two communicating ports.

[0014] Optionally, a connecting nozzle is connected between the communicating port and the mixing channel, and a reinforcing beam is connected between two connecting nozzles.

[0015] Optionally, the negative pressure compensation structure includes a compensation member, the compensation member includes the compensation cavity, and the compensation member is arranged on the outside of the delivery box.

[0016] Optionally, the compensating member is configured as a compensating tube, which is disposed on the upper side or the lower side of the delivery box and extends in the up-down direction.

[0017] Optionally, the compensating member is configured as a compensating tube, which is disposed on a side of the delivery box and extends in a direction perpendicular to the up-down direction.

[0018] Optionally, the delivery box includes a box body and a box cover, the box body and the box cover enclose the mixing channel, and the compensation piece is arranged on the box cover.

[0019] Optionally, the box body includes a delivery cavity, the mixing channel is arranged on the upper side of the delivery cavity, and the box cover is arranged on the upper side of the box body.

[0020] Optionally, a connecting nozzle communicating with the mixing channel is provided on the box cover, and the compensating member is sleeved on the connecting nozzle through the communicating nozzle.

[0021] Optionally, the box cover and the compensating member are integrally formed.

[0022] Optionally, the compensating piece is made of plastic material.

[0023] Optionally, the compensating member is made of elastic material.

[0024] Optionally, the negative pressure compensation structure includes a compensation member, the compensation member includes the compensation cavity, and the compensation member is disposed in the delivery box.

[0025] Optionally, the negative pressure compensation structure includes a one-way valve, which is arranged between the compensation chamber and the mixing channel and is used to allow the compensation gas in the compensation chamber to flow into the mixing channel.

[0026] Optionally, the delivery box is provided with a delivery channel, and the delivery channel is used to communicate with the drum of the washing machine, wherein at least a part of the delivery channel is configured as the compensation chamber.

[0027] Optionally, the delivery device includes a delivery pump, the delivery box is provided with a delivery channel, the delivery chamber, the delivery channel, the delivery pump and the delivery port are connected in sequence, wherein at least a portion of the delivery channel is configured as the compensation chamber.

[0028] Optionally, the negative pressure compensation structure includes an air vent opened in the delivery box, and the air vent is connected to the outside atmosphere and the mixing channel.

[0029] Optionally, the distance between the air vent and the delivery port is 0 mm to 600 mm.

[0030] Optionally, the delivery box includes a delivery cavity, the mixing channel is located on the upper side of the delivery cavity, and the air vent is opened at the top of the delivery box.

[0031] Optionally, a waterproof breathable membrane is provided at the vent.

[0032] According to a second aspect of the present disclosure, a washing machine is provided, comprising the above-mentioned dispensing device.

[0033] Optionally, the washing machine includes at least two drums, the at least two drums include a first drum and a second drum, and the volume of the first drum is smaller than the volume of the second drum.

[0034] Optionally, the volume of the first cylinder is 1L~20L.

[0035] Optionally, the first cylinder is arranged obliquely above the second cylinder.

[0036] Through the above technical solution, when the dispensing device provided by the present disclosure is applied to a washing machine, when the washing machine is in washing operation, water can enter the mixing channel through the water inlet, and the detergent in the dispensing chamber can enter the mixing channel through the dispensing port, thereby, the detergent and water can be mixed in the mixing channel, and then, the mixed liquid can flow into the drum of the washing machine through the water outlet of the dispensing box to achieve the addition of detergent. Here, when the water inflow into the mixing channel ends, the water fades from the mixing channel, and when the liquid in the mixing channel quickly flows out of the mixing channel, a short water hammer effect will occur in the mixing channel, which will cause negative pressure at the dispensing port, and then cause a small amount of detergent in the dispensing chamber to be accidentally drawn into the mixing channel, thereby, when the washing machine is performing the next washing operation, for example, excessive addition of detergent will occur, or when the washing machine is performing the rinsing mode, for example, incorrect addition of detergent will occur. Here, the present invention adds a negative pressure compensation structure. When the liquid in the mixing channel quickly flows out of the mixing channel, the negative pressure compensation structure can introduce compensation gas into the mixing channel, thereby reducing or even avoiding the generation of negative pressure at the delivery port, thereby reducing or even avoiding the detergent in the delivery chamber from being accidentally drawn into the mixing channel, thereby avoiding excessive or incorrect addition of detergent. Therefore, the delivery device of the present invention has higher reliability.

[0037] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a schematic diagram of the main structure of a washing machine provided according to some embodiments of the present disclosure; Figure 2 is a schematic diagram of the three-dimensional structure of the delivery device provided according to the first embodiment of the present disclosure; Figure 3 yes Figure 2 A partial cross-sectional schematic diagram of AA in the middle; Figure 4 yes Figure 3 A schematic diagram of a part of the structure of the box body of the delivery device; Figure 5 yes Figure 3 A schematic diagram of a portion of the structure of the box cover of the delivery device; Figure 6 yes Figure 5 A schematic cross-sectional view of the middle BB; Figure 7 yes Figure 3 A schematic diagram of the structure of the compensation part of the middle delivery device; Figure 8 is a schematic diagram of the three-dimensional structure of a delivery device provided according to the second embodiment of the present disclosure; Fig. 9 is a schematic diagram of the three-dimensional structure of a delivery device provided according to the third embodiment of the present disclosure; Fig.10 is a schematic diagram of the three-dimensional structure of a delivery device provided according to a fourth embodiment of the present disclosure; Fig.11 is a schematic diagram of a partial structure of a box body in a delivery device provided according to a fifth embodiment of the present disclosure; Fig.12 It is a schematic diagram of the partial structure of the box body in the delivery device provided according to the sixth embodiment of the present disclosure.

[0039] Description of Reference Numerals 1-dispensing box, 11-water inlet, 12-dispensing port, 13-dispensing chamber, 14-mixing channel, 15-box body, 151-main body box, 152-cover plate, 16-box cover, 17-dispensing channel, 18-delivery channel, 19-water outlet, 2-negative pressure compensation structure, 21-compensation chamber, 22-compensation member, 221-first end, 222-second end, 223-connecting port, 23-one-way valve, 24-air permeable port, 25-waterproof breathable membrane, 3-connecting nozzle, 4-reinforcement beam, 5-delivery pump, 10-first flow path, 20-second flow path, 100-cylinder, 200-first cylinder, 300-second cylinder, 400-dispensing device. DETAILED DESCRIPTION

[0040] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0041] In the present disclosure, unless otherwise stated, the directional words used, such as "up" and "down", are defined based on the gravity direction of the washing machine and the dispensing device, wherein the up and down directions can also refer to Figure 1 and Figure 2 The “inside” and “outside” refer to the inside and outside of the outline of each component. The terms “first” and “second” are used to distinguish one element from another and have no order or importance. In addition, when the following description refers to the drawings, the same reference numerals in different drawings represent the same or similar elements, which will not be repeated in this disclosure.

[0042] According to some embodiments of the present disclosure, a delivery device is provided, referring to Figures 1 to 12As shown in the figure, the delivery device includes a delivery box 1 and a negative pressure compensation structure 2. The delivery box 1 is provided with a water inlet 11, a delivery port 12 and a mixing channel 14. The water inlet 11 is connected to the mixing channel 14, and the water inlet 11 can be connected to the water inlet pipe of the washing machine. The delivery port 12 is connected to the mixing channel 14 and the delivery chamber 13. The delivery chamber 13 can be provided with detergent. The negative pressure compensation structure 2 is used to introduce compensation gas into the mixing channel 14. The delivery box 1 can also be provided with a water outlet 19 connected to the mixing channel 14. The water outlet 19 can be connected to the water outlet pipe of the washing machine, and the water outlet pipe can be connected to the drum 100 of the washing machine.

[0043] Through the above technical solution, when the dispensing device provided by the present disclosure is applied to a washing machine, when the washing machine is in washing operation, water can enter the mixing channel 14 through the water inlet 11, and the detergent in the dispensing chamber 13 can enter the mixing channel 14 through the dispensing port 12, thereby, the detergent and water can be mixed in the mixing channel 14, and then, the mixed liquid can flow into the drum 100 of the washing machine through the water outlet 19 of the dispensing box 1, so as to achieve the addition of detergent. Here, when the water inflow of the mixing channel 14 ends, the water fades from the mixing channel 14, and when the liquid in the mixing channel 14 flows out of the mixing channel 14 quickly, the mixing channel 14 will have a short water hammer effect, which will cause negative pressure at the dispensing port 12, thereby causing a small amount of detergent in the dispensing chamber 13 to be accidentally drawn into the mixing channel 14, thereby causing excessive addition of detergent when the washing machine is, for example, performing the next washing operation, or causing incorrect addition of detergent when the washing machine is, for example, performing the rinsing mode. Here, the present invention adds a negative pressure compensation structure 2. When the liquid in the mixing channel 14 quickly flows out of the mixing channel 14, the negative pressure compensation structure 2 can introduce compensation gas into the mixing channel 14, thereby reducing or even avoiding the generation of negative pressure at the delivery port 12, thereby reducing or even avoiding the detergent in the delivery chamber 13 from being accidentally drawn into the mixing channel 14, thereby avoiding excessive or incorrect addition of laundry detergent. Therefore, the delivery device of the present invention has high reliability.

[0044] It should be noted that the present disclosure does not limit the specific structure of the negative pressure compensation structure 2. The negative pressure compensation structure 2 can be used as long as it can introduce compensation gas into the mixing channel 14 when the water hammer effect occurs in the mixing channel 14, that is, when the liquid in the mixing channel 14 quickly flows out of the mixing channel 14. The introduction of the compensation gas can compensate the air pressure at the delivery port 12 to alleviate or even avoid the generation of negative pressure at the delivery port 12. In addition, the above-mentioned compensation gas can be air or gas of other components, and the present disclosure does not impose too many restrictions on this.

[0045] It should also be noted that the present disclosure does not limit the specific structure of the delivery chamber 13. For example, the delivery box may include the delivery chamber 13. In some embodiments, the delivery box 1 may include a box body 15 and a box cover 16. The box body 15 and the box cover 16 may enclose a mixing channel 14. In this case, the box body 15 may include the delivery chamber 13. In some embodiments, refer to Figure 2 and Figure 4 As shown in , the box body 15 may include a main box 151 and a cover plate 152, the main box 151 may include a delivery cavity 13, and the cover plate 152 may form a mixing channel 14 with the box cover 16, and the present disclosure does not limit this. For another example, other structures of the delivery device may include the delivery cavity 13, in which case the other structures and the delivery box 1 are two different components.

[0046] In some embodiments of the present disclosure, reference Figure 3 , Figure 6 , Figure 7 , Fig.11 as well as Fig.12 As shown in , the negative pressure compensation structure 2 may include a compensation chamber 21 connected to the mixing channel 14, and a compensation gas is arranged in the compensation chamber 21. That is to say, the negative pressure compensation structure 2 may pre-arrange the compensation gas in the compensation chamber 21, so that, since the compensation chamber 21 is connected to the mixing channel 14, when the liquid in the mixing channel 14 flows out of the mixing channel 14 quickly, the water hammer effect generated by the mixing channel 14 will cause the compensation gas in the compensation chamber 21 to automatically flow into the mixing channel 14, thereby, the compensation gas can be introduced into the mixing channel 14 at the appropriate time, so as to effectively prevent the washing liquid in the delivery chamber 13 from being accidentally drawn into the mixing channel 14, thereby further improving the reliability of the delivery device. In addition, when water and washing liquid respectively flow into the mixing channel 14, the compensating gas introduced into the mixing channel 14 can also at least partially return to the compensating chamber 21. In this way, when the liquid in the mixing channel 14 flows out of the mixing channel 14 quickly next time, the compensating gas in the compensating chamber 21 will automatically flow into the mixing channel 14 again. Therefore, the setting of the compensating chamber 21 can realize the cyclic compensation of the negative pressure at the injection port 12.

[0047] In some embodiments of the present disclosure, reference Figure 3 , Figure 8 and Fig. 9As shown in , the negative pressure compensation structure 2 may include a compensation member 22, the compensation member 22 includes a compensation chamber 21, a first end 221 and a second end 222, the first end 221 may be closed, that is, the compensation gas in the compensation chamber 21 is restricted from flowing out of the compensation member 22 through the first end 221, and the second end 222 may include a connecting port 223, the connecting port 223 connects the compensation chamber 21 and the mixing channel 14, so that the compensation gas in the compensation chamber 21 may flow into the mixing channel 14 through the connecting port 223, and the connection between the compensation chamber 21 and the mixing channel 14 is realized. In addition, the closure of the first end 221 may simplify the structure of the compensation member 22 and improve the reliability of the compensation member 22.

[0048] In some embodiments, reference Figure 3 , Figure 8 and Fig. 9 As shown in , the compensating member 22 can be constructed as a compensating tube, which can facilitate the construction of the compensating cavity 21 of the compensating member 22, wherein the axial ends of the compensating tube can be constructed as the above-mentioned first end 221 and the second end 222. In some embodiments, the compensating tube can be constructed as a straight tube or a curved tube, which is not limited by the present disclosure.

[0049] In some embodiments, reference Figure 8 As shown in , the compensation tube can be arranged on the upper side or the lower side of the delivery box 1 and extend in the up-down direction. In this way, the compensation member 22 can use the arrangement space in the up-down direction of the delivery box 1 to arrange itself. In addition, when the compensation tube is arranged to extend in the up-down direction, the liquid in the mixing channel 14 is not easy to enter the compensation tube, thereby improving the negative pressure compensation effect of the compensation chamber.

[0050] In other embodiments, reference Fig. 9 As shown in , the compensating tube can be arranged on the side of the delivery box 1 and extends in a direction perpendicular to the up-down direction. In this way, the compensating member 22 can utilize the arrangement space on the delivery box 1 perpendicular to the up-down direction to arrange itself.

[0051] In other embodiments, the compensating member 22 may be configured as other shapes other than a tube, for example, the compensating member 22 may be configured as one of a cylindrical shape, a spherical shape, an ellipsoidal shape, a polygonal column shape, and a polygonal pyramid shape, and accordingly, the shape of the compensating cavity 21 may also be configured as one of a spherical shape, an ellipsoidal shape, a polygonal pyramid shape, and a polygonal pyramid shape. Here, the present disclosure does not impose too many restrictions on the specific shape of the compensating member 22.

[0052] In other embodiments of the present disclosure, reference Figure 2 , Figure 3 as well as Figures 5 to 7As shown in , the negative pressure compensation structure 2 may include a compensation member 22, the compensation member 22 includes a compensation chamber 21, a first end 221 and a second end 222, the first end 221 and the second end 222 both include a connecting port 223, and each connecting port 223 connects the compensation chamber 21 and the mixing channel 14. The advantage of such a setting is that when the compensation gas in the compensation chamber is compensated to the injection port 12, the compensation gas can enter the mixing channel 14 through each connecting port 223, so that more connecting ports 223 can make the compensation gas enter the mixing channel 14 more quickly, thereby improving the negative pressure compensation effect.

[0053] In some embodiments, reference Figure 2 , Figure 3 as well as Figures 5 to 7 As shown in , the compensating member 22 can be constructed as a compensating tube, wherein the compensating tube can be constructed as a U-shaped tube, and the two ends of the compensating tube in its own extension direction are constructed as a first end 221 and a second end 222. Such a configuration is conducive to forming a connecting port 223 located at the first end 221 and a connecting port 223 located at the second end 222 on the compensating tube. In addition, the configuration of the U-shaped tube can reduce the length of the compensating member 22 between the two connecting ports 223 while keeping the volume of the compensation cavity 21 unchanged, thereby reducing the occupied space of the compensating member 22 and facilitating the arrangement of the compensating member 22. Of course, in the embodiment where both the first end 221 and the second end 222 include the connecting port 223, the compensating tube can also be constructed as a W-shaped tube, etc., and the present disclosure does not impose too many restrictions on the specific shape of the compensating tube.

[0054] In some embodiments, reference Figure 3 As shown in , the first flow path 10 of the compensation chamber 21 between the two communication ports 223 can be longer than the second flow path 20 of the mixing channel 14 between the two communication ports 223. In this way, it can be avoided that when the first flow path 10 of the compensation chamber 21 between the two communication ports 223 is shorter than the second flow path 20 of the mixing channel 14 between the two communication ports 223, the liquid in the mixing channel 14 flows through the compensation chamber 21, thereby causing the negative pressure compensation function of the compensation member 22 to fail.

[0055] In some embodiments, reference Figure 2 and Figure 5 As shown in the embodiment in which both the first end 221 and the second end 222 include the communication port 223, a connection nozzle 3 may be connected between the communication port 223 and the mixing channel 14, that is, the number of the connection nozzles 3 may be two, that is, the first end 221 and the second end 222 are both sleeved in the corresponding connection nozzle 3 through the corresponding communication port 223, wherein a reinforcing beam 4 may be connected between the two connection nozzles 3. In this way, the two connection nozzles 3 can be connected together, the reliability of the connection nozzle 3 is improved, and the connection nozzle 3 is prevented from shaking excessively.

[0056] In some embodiments of the present disclosure, reference Figure 3 As shown in , the compensation chamber 21 can be connected to the mixing channel 14 through the connecting port 223. At this time, the distance between the connecting port 223 and the delivery port 12 can be 0mm~600mm, for example, the distance between the connecting port 223 and the delivery port 12 can be 100mm, 200mm, 300mm, 400mm, 500mm, etc. The advantage of such a setting is that it can avoid the negative pressure compensation function of the compensation member 22 from being weakened when the distance between the connecting port 223 and the delivery port 12 is too large. It should be noted that when the number of delivery ports 12 is multiple, and / or the number of connecting ports 223 is greater than one, the distance between the connecting port 223 and the delivery port 12 refers to the distance between any connecting port 223 and any delivery port 12, that is, the distance between any delivery port 12 and any connecting port 223 can be 0mm~600mm.

[0057] In some embodiments of the present disclosure, the volume of the compensation cavity 21 may be less than or equal to 30 cm2. The advantage of such a configuration is that the volume of the compensation cavity can be prevented from being too large and occupying too much space. Here, in some embodiments, the volume of the compensation cavity 21 may be less than 5 cm2. 2 , for example, it can be 3cm 2 In some other embodiments, the volume of the compensation cavity 21 may be 5 cm 2 ~15cm 2 , for example, it can be 11cm 2 The compensation chamber 21 within this volume range ensures that there is enough gas to provide enough pressure during negative pressure compensation, while also preventing the volume of the compensation chamber from being too large and occupying too much space.

[0058] In some embodiments of the present disclosure, reference Figure 2 , Figure 3 as well as Figures 5 to 9 As shown in , the negative pressure compensation structure 2 includes a compensation member 22, and the compensation member 22 includes a compensation cavity 21. The compensation member 22 can be arranged outside the delivery box 1. In this way, the space outside the delivery box 1 can be used to arrange the compensation member 22, so as to avoid the compensation member 22 occupying the internal space of the delivery box 1. Among them, the compensation member 22 can be set at any suitable position of the delivery box 1, and the present disclosure will be described in detail in the following embodiments.

[0059] In some embodiments of the present disclosure, reference Figure 2 , Figure 3 as well as Figures 5 to 9As shown in , the delivery box 1 may include a box body 15 and a box cover 16, and the box body 15 and the box cover 16 may enclose a mixing channel 14, wherein the compensating member 22 may be disposed on the box cover 16. Thus, since the structure of the box body 15 is more complicated than that of the box cover 16, the compensating member 22 is disposed on the box cover 16, which can reduce the change of the structure of the box body 15 and reduce the manufacturing cost of the delivery device. Of course, the compensating member 22 may also be disposed on the box body 15, or the compensating member 22 may also be disposed on the box body 15 and the box cover 16.

[0060] In some embodiments, reference Figure 3 , Figure 4 and Figure 6 As shown in , both the box body 15 and the box cover 16 may be provided with a flow channel that matches the shape of the mixing channel 14. When the box cover 16 is covered on the box body 15, the flow channel on the box cover 16 may cooperate with the flow channel on the box body 15 to enclose the mixing channel 14. Of course, in other embodiments, the inner wall surface of the box cover 16 may be configured as a plane, and the box body 15 may be provided with a flow channel that matches the shape of the mixing channel 14. When the box cover 16 is covered on the box body 15, the inner wall surface of the box cover 16 may cooperate with the flow channel on the box body 15 to enclose the mixing channel 14. The present disclosure does not impose too many restrictions on the specific structure of the mixing channel 14.

[0061] In some embodiments, reference Figure 2 , Figure 3 , Figure 8 as well as Fig. 9 As shown in , the box body 15 may include a delivery chamber 13, the mixing channel 14 may be arranged on the upper side of the delivery chamber 13, and the box cover 16 may be arranged on the upper side of the box body 15, that is, the compensation chamber 21 of the compensation member 22 may be arranged on the upper side of the mixing channel 14, so that the liquid in the mixing channel 14 may be reduced or even prevented from flowing into the compensation chamber 21. Of course, the above-mentioned compensation member 22 may be arranged on the side of the box body 15 and / or the box cover 16.

[0062] In some embodiments, reference Figure 3 , Figure 5 , Figure 6 , Figure 8 as well as Fig. 9As shown in , the box cover 16 may be provided with a connecting nozzle 3 that is in communication with the mixing channel 14, and the compensating member 22 may be sleeved on the connecting nozzle 3 through the communicating port 223. In this way, by means of the sleeve connection of the compensating member 22 and the connecting nozzle 3, on the one hand, the compensating member 22 may be installed on the box cover 16, and on the other hand, the communication between the compensating chamber 21 and the mixing channel 14 may be conveniently achieved. In addition, the provision of the connecting nozzle 3 may avoid the direct connection between the compensating member 22 and the box cover 16, thereby facilitating the sealed communication between the compensating chamber 21 and the mixing channel 14. In addition, the sleeve connection of the compensating member 22 and the connecting nozzle 3 facilitates the disassembly and assembly of the compensating member 22 and the connecting nozzle 3. Here, in some embodiments, the connecting nozzle 3 may be fixedly connected to the box cover 16, or may be detachably connected to the box cover 16, and the present disclosure does not limit this.

[0063] In other embodiments, the box cover 16 may also be integrally formed with the compensating member 22. In this way, the connection between the box cover 16 and the compensating member 22 may be omitted, and the number of parts of the delivery device may be reduced, thereby improving the reliability of the delivery device. In some embodiments, the box cover 16 may include a protruding portion protruding upward, and the protruding portion may include a concave cavity connected to the mixing channel 14. In this case, the concave cavity may be configured as the above-mentioned compensating cavity 21, and the protruding portion may be configured as the above-mentioned compensating member 22.

[0064] In some embodiments of the present disclosure, the compensating member 22 may be made of a plastic material, so that deformation of the compensating member 22 can be reduced or even avoided, thereby improving the reliability of the compensating member 22 .

[0065] In other embodiments of the present disclosure, the compensating member 22 may also be made of an elastic material. In this way, the compensating chamber 21 of the compensating member 22 may include a variable volume, so that more compensating gas may be pre-set in the compensating chamber 21, thereby facilitating the negative pressure compensation effect of the compensating member 22.

[0066] In other embodiments of the present disclosure, the negative pressure compensation structure 2 includes a compensation member 22, and the compensation member 22 may include a compensation cavity 21, wherein the compensation member 22 may be disposed in the delivery box 1. In this way, on the one hand, the space inside the delivery box 1 may be utilized to arrange the compensation member 22, and on the other hand, when the compensation member 22 is disposed outside the delivery box 1, it may be avoided that the compensation member 22 is easily damaged by external impact.

[0067] The above introduces the specific embodiments of the compensating member 22 and the delivery box 1, wherein when the compensating member 22 is disposed on the outside of the delivery box 1, the first end 221 of the compensating member 22 can be closed, and the second end 222 can include a connecting port 223, or both the first end 221 and the second end 222 of the compensating member 22 can include a connecting port 223. When the compensating member 22 is disposed in the delivery box 1, the first end 221 of the compensating member 22 can be closed, and the second end 222 can include a connecting port 223, or both the first end 221 and the second end 222 of the compensating member 22 can include a connecting port 223. In addition, the compensating member can be constructed in a variety of shapes in the above embodiments. That is to say, the present disclosure can combine the above-mentioned specific embodiments of the compensating member 22 and the delivery box 1 in various ways as needed, as long as the negative pressure compensation effect of the negative pressure compensation structure can be achieved.

[0068] In some embodiments of the present disclosure, reference Fig.11 and Fig.12 As shown in , in the embodiment where the negative pressure compensation structure 2 includes the compensation chamber 21, the negative pressure compensation structure 2 may include a one-way valve 23, which is disposed between the compensation chamber 21 and the mixing channel 14 and is used to allow the compensation gas in the compensation chamber 21 to pass into the mixing channel 14. In this way, when the liquid in the mixing channel 14 flows out of the mixing channel 14 quickly, the one-way valve 23 may allow the compensation gas in the compensation chamber 21 to pass into the mixing channel 14, so as to reduce or even avoid the generation of negative pressure at the delivery port 12. When the water and the washing liquid in the mixing channel 14 are mixed, the one-way valve 23 may prevent the mixed liquid from flowing into the compensation chamber 21 through the one-way valve 23, thereby improving the reliability of the negative pressure compensation structure 2, and such a setting is conducive to setting other channels in the delivery box 1 as the compensation chamber 21.

[0069] In some embodiments, reference Fig.11As shown in , the delivery box 1 may be provided with a delivery channel 17, which is used to communicate with the drum 100 of the washing machine, wherein at least a portion of the delivery channel 17 is configured as a compensation chamber 21. In this way, when the liquid in the mixing channel 14 flows out of the mixing channel 14 quickly, at least a portion of the delivery channel 17 is configured as a compensation chamber 21, that is, the compensation gas in the delivery channel 17 can enter the mixing channel 14 through the one-way valve 23, so as to reduce or even avoid the negative pressure generated at the delivery port 12. Here, due to the presence of the one-way valve 23, it is possible to prevent the mixed liquid in the mixing channel 14 from directly flowing into the delivery channel 17 through the one-way valve 23, wherein the delivery channel 17 may be connected to the mixing channel 14 through other structures, such as a reversing valve, which is not limited by the present disclosure. Here, a gas-liquid separation structure may be provided on the one-way valve 23, so that it is possible to prevent the mixed liquid in the delivery channel 17 from accidentally flowing back into the mixing channel 14 through the one-way valve 23 when entering the drum 100 of the washing machine through the above-mentioned water outlet pipe. In addition, the present disclosure can also utilize the delivery channel 17 to construct the compensation chamber 21, which makes it unnecessary to add additional structures to the delivery device to construct the compensation chamber 21, thereby simplifying the structure of the delivery device.

[0070] In some embodiments, reference Fig.12 As shown in , the delivery device may include a delivery pump 5, and the delivery box 1 is provided with a delivery channel 18. The delivery chamber 13, the delivery channel 18, the delivery pump 5 and the delivery port 12 are connected in sequence. That is to say, when it is necessary to deliver the washing liquid in the delivery chamber 13 to the mixing channel 14, the delivery pump 5 can pump the washing liquid into the mixing channel 14 through the delivery channel 18, wherein at least part of the delivery channel 18 is configured as a compensation chamber 21. In this way, when the liquid in the mixing channel 14 flows out of the mixing channel 14 quickly, at least part of the delivery channel 18 is configured as a compensation chamber 21, that is, the compensation gas in the delivery channel 18 can enter the mixing channel 14 through the one-way valve 23, so as to reduce or even avoid the generation of negative pressure at the delivery port 12. Here, due to the presence of the one-way valve 23, it can be avoided that the mixed liquid in the mixing channel 14 directly flows into the delivery channel 18 through the one-way valve 23, wherein the delivery channel 17 can be connected to the mixing channel 14 through other structures, such as a reversing valve, and the present disclosure does not limit this. Here, a gas-liquid separation structure may be provided on the one-way valve 23, so that the washing liquid in the delivery channel 18 can be prevented from accidentally flowing into the mixing channel 14 through the one-way valve 23. In addition, the present disclosure can also use the delivery channel 18 to construct the compensation chamber 21, which makes it unnecessary to add an additional structure to the delivery device to construct the compensation chamber 21, thereby simplifying the structure of the delivery device.

[0071] In some embodiments of the present disclosure, the above-mentioned water inlet pipe, water inlet 11, mixing channel 14, delivery chamber 13, delivery channel 17, delivery port 12, compensation chamber 21, connecting port 223, conveying channel 18, water outlet 19 and water outlet pipe can be jointly constructed as a closed chamber, that is, these structures can be constructed as a closed flow channel. At this time, the compensation effect of the compensation chamber of the present disclosure is more superior.

[0072] In other embodiments of the present disclosure, reference Fig.10 As shown in , the negative pressure compensation structure 2 may include a vent 24 opened in the delivery box 1, and the vent 24 connects the outside atmosphere and the mixing channel 14. In this way, when the liquid in the mixing channel 14 flows out of the mixing channel 14 quickly, the gas in the outside atmosphere can enter the mixing channel 14 through the vent 24 to reduce or even avoid the negative pressure at the delivery port 12. At this time, the gas in the outside atmosphere can be constructed as the above-mentioned compensation gas.

[0073] In some embodiments, the distance between the air vent 24 and the delivery port 12 can be 0 mm to 600 mm, for example, the distance between the air vent 24 and the delivery port 12 can be 100 mm, 200 mm, 300 mm, 400 mm, 500 mm, etc. The advantage of such a setting is that it can avoid the negative pressure compensation function of the negative pressure compensation structure 2 from being weakened when the distance between the air vent 24 and the delivery port 12 is too large.

[0074] In some embodiments, reference Fig.10 As shown in , the delivery box 1 may include a delivery cavity 13, the mixing channel 14 may be located on the upper side of the delivery cavity 13, and the vent 24 may be opened at the top of the delivery box 1. In this way, the vent 24 may be located higher than the mixing channel 14 to prevent the liquid in the mixing channel 14 from leaking through the vent 24.

[0075] In some embodiments, reference Fig.10 As shown in , a waterproof breathable membrane 25 can be provided at the vent 24. In this way, while ensuring that the outside atmosphere can smoothly enter the mixing channel 14, the liquid in the mixing channel 14 can be prevented from leaking through the vent 24. In this embodiment, the position of the vent 24 can be designed more flexibly.

[0076] According to a second aspect of the present disclosure, a washing machine is provided, comprising the above-mentioned placing device 400. The washing machine has all the beneficial effects of the above-mentioned placing device 400, which are not described in detail in the present disclosure. In some embodiments, the placing device 400 may be located at the bottom of the washing machine, which is not limited in the present disclosure.

[0077] In some embodiments of the present disclosure, reference Figure 1As shown in , the washing machine may include at least two barrels 100, and the at least two barrels 100 include a first barrel 200 and a second barrel 300, wherein the volume of the first barrel 200 may be smaller than the volume of the second barrel 300. In this way, the first barrel 200 may be used to wash clothes with a smaller volume or a lighter weight, and the second barrel 300 may be used to wash clothes with a larger volume or a heavier weight. Among them, since the volume of the first barrel 200 is smaller, when the dispensing device dispenses washing liquid into the first barrel 200, based on the above-mentioned negative pressure compensation structure 2, the washing effect of the first barrel 200 can be significantly improved.

[0078] In some embodiments, the volume of the first barrel 200 may be 1L to 20L, for example, 3L to 10L. In this way, the volume of the first barrel 200 is relatively small, so that under this volume, when the washing liquid is excessively added or added incorrectly, the washing effect of the first barrel 200 is significantly poor. The dispensing device disclosed in the present invention can solve the technical problem of the significantly poor washing effect of the first barrel 200.

[0079] In some embodiments, the first barrel 200 may be disposed obliquely above the second barrel 300. In this way, it is convenient for the user to take and put the clothes of the first barrel 200, wherein the first barrel 200 may be disposed at the upper right of the second barrel 300. Of course, in other embodiments, the first barrel 200 may also be disposed obliquely below the second barrel 300, and the present disclosure does not impose too many restrictions on this.

[0080] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0081] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0082] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A delivery device, characterized in that: It includes a delivery box and a negative pressure compensation structure. The delivery box is provided with a water inlet, a delivery port and a mixing channel. The water inlet is connected to the mixing channel, the delivery port is connected to the mixing channel and the delivery chamber, and the negative pressure compensation structure is used to introduce compensation gas into the mixing channel.

2. The delivery device according to claim 1, characterized in that: The negative pressure compensation structure includes a compensation chamber communicated with the mixing channel, and compensation gas is arranged in the compensation chamber.

3. The delivery device according to claim 2, characterized in that: The compensation chamber is connected to the mixing channel through a connecting port, and the distance between the connecting port and the delivery port is 0 mm to 600 mm.

4. The delivery device according to claim 2, characterized in that: The volume of the compensation cavity is less than or equal to 30 cm 2 .

5. The delivery device according to claim 4, characterized in that: The volume of the compensation cavity is 5 cm 2 ~15cm 2 .

6. The delivery device according to claim 2, characterized in that: The negative pressure compensation structure includes a compensation member, which includes the compensation chamber, a first end and a second end. The first end is closed, and the second end includes a communication port, which connects the compensation chamber and the mixing channel.

7. The delivery device according to claim 6, characterized in that: The compensating piece is configured in one of a cylindrical shape, a spherical shape, an ellipsoidal shape, a polygonal column shape, and a polygonal pyramid shape.

8. The delivery device according to claim 2, characterized in that: The negative pressure compensation structure includes a compensation member, which includes the compensation chamber, a first end and a second end. The first end and the second end both include a connecting port, and each connecting port connects the compensation chamber and the mixing channel.

9. The delivery device according to claim 8, characterized in that: The compensating member is configured as a compensating tube, the compensating tube is configured as a U-shaped tube, and the two ends of the compensating tube in its extension direction are configured as the first end and the second end.

10. The delivery device according to claim 8, characterized in that: A first flow path of the compensation chamber between the two communication ports is longer than a second flow path of the mixing channel between the two communication ports.

11. The delivery device according to claim 8, characterized in that: A connecting nozzle is connected between the communicating port and the mixing channel, and a reinforcing beam is connected between the two connecting nozzles.

12. The delivery device according to any one of claims 2 to 11, characterized in that: The negative pressure compensation structure includes a compensation piece, the compensation piece includes the compensation cavity, and the compensation piece is arranged on the outside of the delivery box.

13. The delivery device according to claim 12, characterized in that: The compensating member is constructed as a compensating tube, which is arranged on the upper side or the lower side of the delivery box and extends in the up-down direction.

14. The delivery device according to claim 12, characterized in that: The compensating member is configured as a compensating tube, which is disposed on a side of the delivery box and extends in a direction perpendicular to an up-down direction.

15. The delivery device according to claim 12, characterized in that: The delivery box comprises a box body and a box cover, wherein the box body and the box cover enclose the mixing channel, and the compensation piece is arranged on the box cover.

16. The delivery device according to claim 15, characterized in that: The box body comprises a delivery cavity, the mixing channel is arranged on the upper side of the delivery cavity, and the box cover is arranged on the upper side of the box body.

17. The delivery device according to claim 15, characterized in that: The box cover is provided with a connecting nozzle which is in communication with the mixing channel, and the compensating member is sleeved on the connecting nozzle through the connecting nozzle.

18. The delivery device according to claim 15, characterized in that: The box cover and the compensating member are integrally formed.

19. The delivery device according to claim 12, characterized in that: The compensating piece is made of plastic material.

20. The delivery device according to claim 12, characterized in that: The compensating piece is made of elastic material.

21. The delivery device according to any one of claims 2 to 11, characterized in that: The negative pressure compensation structure includes a compensation piece, the compensation piece includes the compensation cavity, and the compensation piece is arranged in the delivery box.

22. The delivery device according to any one of claims 2 to 5, characterized in that: The negative pressure compensation structure includes a one-way valve, which is arranged between the compensation chamber and the mixing channel and is used to allow the compensation gas in the compensation chamber to flow into the mixing channel.

23. The delivery device according to claim 22, characterized in that: The delivery box is provided with a delivery channel, and the delivery channel is used to communicate with the drum of the washing machine, wherein at least a part of the delivery channel is configured as the compensation chamber.

24. The delivery device according to claim 22, characterized in that: The delivery device comprises a delivery pump, the delivery box is provided with a delivery channel, the delivery cavity, the delivery channel, the delivery pump and the delivery port are sequentially connected, wherein at least a part of the delivery channel is configured as the compensation cavity.

25. The delivery device according to any one of claims 1 to 11, characterized in that: The negative pressure compensation structure includes an air vent opened in the delivery box, and the air vent is connected with the outside atmosphere and the mixing channel.

26. The delivery device according to claim 25, characterized in that: The distance between the ventilation opening and the delivery opening is 0 mm to 600 mm.

27. The delivery device according to claim 25, characterized in that: The delivery box comprises a delivery cavity, the mixing channel is located on the upper side of the delivery cavity, and the air vent is opened on the top of the delivery box.

28. The delivery device according to claim 25, characterized in that: The vent is provided with a waterproof and breathable membrane.

29. A washing machine, characterized in that: A delivery device comprising any one of claims 1-28.

30. The washing machine according to claim 29, characterized in that The washing machine comprises at least two drums, wherein the at least two drums comprise a first drum and a second drum, and the volume of the first drum is smaller than the volume of the second drum.

31. The washing machine according to claim 30, characterized in that The volume of the first cylinder is 1L~20L.

32. The washing machine according to claim 30, characterized in that The first cylinder is disposed obliquely above the second cylinder.

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