Clothes treatment device

Abstract

The present invention provides a clothes treatment device. The clothes treatment device comprises: a drum, the drum being provided with an accommodating cavity used for accommodating liquid; and an exhaust pipe, provided outside the drum, a first end of the exhaust pipe being provided with an inlet in communication with the accommodating cavity, and a second end of the exhaust pipe being provided with an outlet, wherein the inlet is located outside a designed washing water level range of the drum, and the designed washing water level range of the drum is not higher than a maximum designed water level of the drum and not lower than a minimum designed water level of the drum. Thus, overflow of foam from the accommodating cavity through the outlet of the exhaust pipe into the external environment can be reduced, the cleanliness of surroundings of the clothes treatment device is greatly improved, and user experience is enhanced.

Description

Laundry treating apparatus Cross Reference to Related Applications

[0001] This application claims priority to and the benefit of Chinese Patent Application No. 202421885711.7, filed August 5, 2024, and Chinese Patent Application No. 202423319305.7, filed December 31, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of household appliances, and in particular to a laundry treating apparatus. BACKGROUND

[0003] The laundry treating apparatus in the related art, such as a drum washing machine, due to the particularity of its structure, makes the washing chamber usually a closed space, so that in order to ensure the smoothness of water supply, an exhaust pipe is usually arranged to communicate the washing chamber and the external environment, so as to release the gas pressure in the closed washing chamber during the water supply stage. However, such a setting will cause a problem that a large amount of foam will overflow to the external environment through the exhaust pipe and pollute the environment around the laundry treating apparatus during the washing process. SUMMARY

[0004] A series of concepts in simplified form are introduced in the summary section, which will be further described in detail in the specific embodiment section. This part of the present disclosure does not mean to try to limit the key features and necessary technical features of the claimed technical solution, nor does it mean to try to determine the protection scope of the claimed technical solution.

[0005] In a first aspect, the present disclosure provides a laundry treating apparatus, comprising: a drum body, the drum body being provided with a containing cavity for containing liquid; an exhaust pipe, the exhaust pipe being arranged outside the drum body, a first end of the exhaust pipe being provided with an inlet communicating with the containing cavity, and a second end of the exhaust pipe being provided with an outlet; wherein the inlet is located outside a designed washing water level range of the drum body, the designed washing water level range of the drum body is not higher than a highest designed water level of the drum body, and is not lower than a lowest designed water level of the drum body.

[0006] Further, the inlet comprises a first inlet, the first inlet being located above the highest designed water level of the drum body; wherein the first inlet communicates with a top or a side of the drum body.

[0007] Further, the inlet comprises a second inlet, the second inlet being located below the lowest designed water level of the drum body, and the outlet being located above the second inlet; wherein the second inlet communicates with a bottom or a side of the drum body.

[0008] Further, the inlet includes a first inlet located above the highest water level of the cylinder, the first inlet being in communication with the top or side of the cylinder; the inlet includes a second inlet located below the lowest water level of the cylinder, the second inlet being in communication with the bottom or side of the cylinder; and the outlet is located between the first inlet and the second inlet.

[0009] Further, the vertical distance between the outlet and the first inlet is less than the vertical distance between the outlet and the second inlet.

[0010] Further, the exhaust pipe includes a first pipe in communication with the first inlet and a second pipe in communication with the second inlet, the cross-sectional area of the second pipe perpendicular to the fluid flow direction being greater than the cross-sectional area of the first pipe perpendicular to the fluid flow direction.

[0011] Further, the exhaust pipe is provided with a broken wall structure on the inner wall between the first inlet and the outlet, the broken wall structure including at least one of a tapered structure, a bent structure, and a protruding rib; and the tapered structure is configured to gradually decrease the cross-sectional area of the exhaust pipe from the first inlet to the outlet.

[0012] Further, the cylinder includes an outer cylinder and an inner cylinder rotatably arranged inside the outer cylinder, and the first inlet is in communication with the top wall of the outer cylinder.

[0013] Further, the cylinder includes an outer cylinder and an inner cylinder rotatably arranged inside the outer cylinder, and the second inlet is in communication with the side wall of the outer cylinder.

[0014] Further, the laundry treatment apparatus further includes a housing arranged outside the cylinder, and a drain pipe arranged between the cylinder and the housing, the drain pipe being in communication with the accommodation cavity and the external environment; the outlet is in communication with the drain pipe, or the outlet is in communication with a through hole of the housing, and the laundry treatment apparatus further includes a transition pipe located outside the housing and in communication with the through hole and the drain pipe.

[0015] Further, the laundry treatment apparatus further includes a water collecting device arranged outside the cylinder, and the outlet is in communication with the water collecting device.

[0016] Further, the laundry treatment apparatus further includes a housing arranged outside the cylinder, and an electrical component arranged between the housing and the cylinder; and a communication pipe arranged between the housing and the cylinder, a first end of the communication pipe being in communication with the outlet, and a second end of the communication pipe extending between the housing and the cylinder and being arranged away from the electrical component.

[0017] Further, the exhaust pipe is further provided with a connection joint arranged at the outlet.

[0018] The laundry treating apparatus provided by the present disclosure comprises a cylinder and an exhaust pipe, a containing cavity of the cylinder is used for containing liquid, by arranging the exhaust pipe which is in communication with the containing cavity outside the cylinder, when water is added to the containing cavity, the air flow in the containing cavity is discharged outside the containing cavity through the inlet of the exhaust pipe, the exhaust pipe and the outlet of the exhaust pipe, the air pressure in the containing cavity is released, so as to ensure that the water can enter the containing cavity smoothly and quickly. By arranging the inlet of the exhaust pipe outside the designed washing water level range of the cylinder, the possibility of the foam in the washing process flowing into the exhaust pipe through the inlet can be reduced, and then the problem that the foam in the containing cavity overflows to the external environment through the outlet of the exhaust pipe and pollutes the environment around the laundry treating apparatus can be reduced, the cleanliness of the environment around the laundry treating apparatus is greatly improved, and the user experience is improved.

[0019] The above description is only a summary of the technical solutions of the present disclosure, in order to enable one of ordinary skill in the art to clearly understand the technical means of the present disclosure and implement the same according to the contents of the description, and in order to enable the above and other purposes, features and advantages of the present disclosure to be more obvious and easy to understand, the specific embodiments of the present disclosure are described below. BRIEF DESCRIPTION OF DRAWINGS

[0020] The following drawings of the present disclosure are used herein as part of the embodiments of the present disclosure to understand the present disclosure. The embodiments of the present disclosure and their descriptions shown in the drawings are used to explain the principles of the present disclosure.

[0021] In the drawings:

[0022] Fig. 1 shows a partial structure schematic diagram of a laundry treating apparatus of an embodiment of the present disclosure;

[0023] Fig. 2 shows a partial structure schematic diagram of a laundry treating apparatus of another embodiment of the present disclosure;

[0024] Fig. 3 shows a partial structure schematic diagram of a laundry treating apparatus of another embodiment of the present disclosure;

[0025] Fig. 4 shows another partial structure schematic diagram of a laundry treating apparatus of another embodiment of the present disclosure;

[0026] Fig. 5 shows a structure schematic diagram of another perspective view of the embodiment shown in Fig. 4;

[0027] Fig. 6 shows a structure schematic diagram of another perspective view of the embodiment shown in Fig. 3;

[0028] Fig. 7 shows a partial cross-sectional view of the A-A direction of the embodiment shown in Fig. 6;

[0029] Fig. 8 shows another partial structure schematic diagram of a laundry treating apparatus of another embodiment of the present disclosure;

[0030] FIG. 9 illustrates a partial cross-sectional view of the B-B direction of the embodiment illustrated in FIG. 8;

[0031] FIG. 10 illustrates a structure diagram of one perspective of an exhaust duct in a laundry treating apparatus of yet another embodiment of the disclosure;

[0032] FIG. 11 illustrates a structure diagram of another perspective of an exhaust duct in a laundry treating apparatus of yet another embodiment of the disclosure.

[0033] Reference Numerals

[0034] 100 laundry treating apparatus, 110 tub, 111 accommodation cavity, 112 inner tub, 113 outer tub, 114 exhaust port, 120 exhaust duct, 121 inlet, 1211 first inlet, 1212 second inlet, 122 outlet, 123 first duct, 124 second duct, 125 connection joint, 126 break wall structure, 127 spring clip, 130 drain pipe, 140 housing, 141 through hole, 150 electric appliance. DETAILED DESCRIPTION

[0035] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the technical solutions provided by the present disclosure. However, it will be apparent to one of ordinary skill in the art that the technical solutions provided by the present disclosure can be practiced without one or more of these specific details.

[0036] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, the singular forms are intended to include the plural forms unless the context clearly indicates otherwise. It will be further understood that the terms "comprise" and / or "include" when used herein specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0037] Exemplary embodiments according to the present disclosure will now be described in detail with reference to the accompanying drawings. The exemplary embodiments may, however, be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that the exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art.

[0038] As illustrated in FIGS. 1 to 11, embodiments of the disclosure provide a laundry treating apparatus 100. Among them, the laundry treating apparatus 100 is mostly a drum washing machine, a washer-dryer, etc.

[0039] In the water inlet or washing process of the laundry treatment apparatus 100 (for example, a drum washing machine), the drum 110 is in a closed arrangement, and the air pressure inside and outside the drum 110 needs to be balanced through the exhaust pipe 120. However, if the mixing speed of the washing liquid and water is fast, too much washing liquid is put in, the mixed liquid splashes or rubs against the laundry, etc., all of which can cause a large amount of foam to be generated in the drum 110, and part of the foam and / or mixed liquid is taken out in the process of being exhausted through the exhaust pipe 120, that is, overflow of the foam occurs. The overflow of the foam can cause the environment around the laundry treatment apparatus 100 to be contaminated, reduce the user experience, and can also affect the user's electrical safety due to the splashing of the liquid or foam, and there is a certain safety hazard.

[0040] Therefore, as shown in FIG. 1, in the present embodiment, the exhaust pipe 120 is arranged at the top of the drum 110 to reduce the probability of the foam splashing out of the drum 110. However, in other possible embodiments of the present disclosure, the exhaust port 114 can also be arranged at the side of the drum 110, as long as the position of the exhaust port 114 is higher than the position of the highest washing water level of the drum 110, thereby expanding the arrangement range of the exhaust port 114 and reducing the design requirement.

[0041] In addition, the inlet pipe diameter of the exhaust pipe 120 can also be arranged to be larger than the outlet pipe diameter, so as to play a role of defoaming when the foam passes through the exhaust pipe 120. For example, the pipe diameter of the exhaust pipe 120 is gradually reduced (tapered) in the direction from the inlet port to the outlet port.

[0042] In the present embodiment, although the exhaust pipe 120 shown in FIG. 1 is a circular pipe or a pipe with a circular shape, it can be understood by those skilled in the art that the pipe shape of the exhaust pipe 120 can also be a square shape, a triangular shape or any other shape, and the present disclosure does not limit the pipe shape of the exhaust pipe 120. The opening area of the inlet port is larger than the opening area of the outlet port, so that the exhaust pipe 120 has a tapered or partially tapered structure, and the defoaming and backflow of the foam can be realized.

[0043] In addition, as shown in FIG. 1, it can be understood that the length of the exhaust pipe 120 can also be extended without affecting the exhaust efficiency, and / or the exhaust pipe 120 can be partially or entirely arranged as a corrugated pipe, or has a flexible or rigid bending, convex point, convex rib, etc., so as to further defoam the foam flowing into the exhaust pipe 120, and prolong the time of defoaming and backflow of the foam to the drum 110 after defoaming, and reduce the probability of the foam being taken out of the exhaust pipe 120.

[0044] The laundry treatment apparatus 100 can be a drum washing machine, a washer-dryer, etc., and the laundry washing capacity of the laundry treatment apparatus 100 can be, for example, 3-5 kg for a small type, 6-8 kg for a medium type, 9 kg or more for a large type, or less than 3 kg for a mini type, etc.

[0045] Another embodiment of the laundry treating apparatus 100 according to the present disclosure will be described below with reference to FIG. 2. FIG. 2 is a structural schematic view of the laundry treating apparatus 100 according to another embodiment of the present disclosure. As shown in FIG. 2, the laundry treating apparatus 100 includes a tub 110 and a drain pipe 130. The tub 110 has a receiving cavity (not shown in FIG. 2) therein, and an exhaust port 114 is formed in the outer circumferential side of the tub 110 to communicate with the receiving cavity. The exhaust port 114 is formed at a position lower than the lowest washing water level of the tub 110 and communicates with an exhaust pipe 120. The exhaust pipe 120 includes an air inlet end and an air outlet end. The air inlet end communicates with the exhaust port 114 of the tub 110, and the air outlet end is arranged to be higher than the air inlet end and communicates with the outside of the laundry treating apparatus 100.

[0046] During the water inlet or washing process of the laundry treating apparatus 100 (e.g., a drum washing machine), the tub 110 is closed, and the air pressure inside and outside the tub 110 needs to be balanced through the exhaust pipe 120. However, if too much washing liquid is added, the mixing speed of the washing liquid and water is fast, the mixed liquid splashes or rubs against the laundry, etc., which can all cause a large amount of foam to be generated in the tub 110, and part of the foam and / or mixed liquid can be carried out during the exhaust process of the exhaust pipe 120, i.e., overflow of the foam occurs. The overflow of the foam can cause the environment around the laundry treating apparatus 100 to be contaminated, reduce the user experience, and can also affect the user's electrical safety due to the splashing of the liquid or foam, which poses a certain safety hazard.

[0047] As shown in FIG. 2, in the present embodiment, the air outlet end of the exhaust pipe 120 is arranged to be higher than the highest washing water level of the tub 110, or even almost flush with, the same height as, or slightly higher than the height of the tub 110, so that the washing water will not overflow the exhaust pipe 120 unless the washing water level exceeds the highest washing water level of the tub 110. Further, the exhaust port 114 is arranged at a position lower than the lowest washing water level of the tub 110, so that the washing water can seal the foam and prevent the foam from being washed out of the tub 110.

[0048] Since the actual washing water level in the receiving cavity during the water inlet or washing process will not be higher than the highest washing water level of the tub 110 or lower than the lowest washing water level of the tub 110, the actual washing water level in the receiving cavity during the washing process is lower than the position of the air outlet end of the exhaust pipe 120 and higher than the position of the air inlet end of the exhaust pipe 120. That is, the air inlet end of the exhaust pipe 120 is always covered by the liquid surface, and most of the foam floats on the liquid surface inside the tub 110, so there is little or almost no foam flowing into the exhaust pipe 120 through the air inlet end.

[0049] It can be understood that during the water inletting or draining of the laundry treating apparatus 100, the actual water level in the accommodating cavity can gradually rise above the air inlet of the exhaust pipe 120 or gradually decrease below the air inlet of the exhaust pipe 120. However, since the water inletting is performed before the washing process, before the water overflows the air inlet of the exhaust pipe 120, the exhaust of the laundry treating apparatus 100 is directly performed through the part of the air inlet that is not overflowed. The water draining is performed at a faster speed after the washing process, and most of the foam is defoamed by the full contact with the laundry during the washing process, so that there is little or almost no foam on the surface of the liquid during the water draining operation. During the water draining, part of the foam on the surface of the liquid remains on the laundry and part of the foam is drained with the liquid, at this time, the air pressure inside the drum 110 does not cause overflow of the foam, so that only a small part of the foam remains on the inner wall or bottom of the exhaust pipe 120, and does not overflow through the air outlet end of the exhaust pipe 120. Therefore, during the water draining operation, almost no foam overflows through the exhaust pipe 120, thereby further reducing the possibility that the foam in the drum 110 overflows through the air outlet end of the exhaust pipe 120 out of the laundry treating apparatus 100.

[0050] In addition, as shown in FIGS. 3, 10 and 11, the laundry treating apparatus 100 provided by the embodiments of the present disclosure includes the drum 110 and the exhaust pipe 120, the accommodating cavity 111 of the drum 110 is used to accommodate liquid to wash the laundry in the accommodating cavity 111, by arranging the exhaust pipe 120 outside the drum 110, the inlet 121 of the exhaust pipe 120 communicates with the accommodating cavity 111, so that when the water inletting operation is performed on the accommodating cavity 111, the air flow in the accommodating cavity 111 is discharged outside the accommodating cavity 111 through the inlet 121 of the exhaust pipe 120, the exhaust pipe 120 and the outlet 122 of the exhaust pipe 120, the air pressure in the accommodating cavity 111 is released, thereby enabling the water to smoothly and quickly enter the accommodating cavity 111, to ensure the smoothness and rapidity of the water inletting operation of the accommodating cavity 111.

[0051] In the design process, the lowest design water level of the tub 110 is generally set, as shown by the straight line L in FIG. 9, and the actual water level in the containing cavity 111 during the washing process is higher than or equal to the lowest design water level of the tub 110, so as to ensure that the amount of liquid in the containing cavity 111 is sufficient and good washing effect is ensured. At the same time, the highest design water level of the tub 110 is generally designed, as shown by the straight line H in FIG. 7, and the actual water level in the containing cavity 111 during the washing process is lower than or equal to the highest design water level of the tub 110, so as to avoid the case that the water level in the containing cavity 111 is too high and water overflow occurs. That is, in the design process, the range of the design washing water level of the tub 110 should be not higher than the highest design water level of the tub 110 and not lower than the lowest design water level of the tub 110, so as to ensure that the actual water level in the containing cavity 111 during the washing process is within the range of the design washing water level of the tub 110, that is, the range of the actual water level in the containing cavity 111 during the washing process should be not higher than the highest design water level of the tub 110 and not lower than the lowest design water level of the tub 110, so as to ensure good washing effect and reduce the occurrence of water overflow. The direction indicated by the arrow Z in FIGS. 7 and 9 can be understood as the vertical direction.

[0052] It can be understood that, generally, the laundry treating apparatus 100 is provided with a water level sensor to detect the actual washing water level in the containing cavity 111, so as to ensure that the actual washing water level in the containing cavity 111 is within the range of the design washing water level of the tub 110, that is, the range of the actual water level in the containing cavity 111 should be not higher than the highest design water level of the tub 110 and not lower than the lowest design water level of the tub 110.

[0053] Since the actual washing water level in the containing cavity 111 during the washing process is not higher than the highest design water level of the tub 110 and not lower than the lowest design water level of the tub 110, in the embodiment, by setting the inlet 121 of the exhaust pipe 120 outside the range of the design washing water level of the tub 110, that is, the inlet 121 of the exhaust pipe 120 is higher than the highest design water level of the tub 110 or lower than the lowest design water level of the tub 110, the possibility that the foam flows into the exhaust pipe 120 through the inlet 121 during the washing process can be reduced, and in turn, the problem that the foam in the containing cavity 111 overflows to the outside environment through the outlet 122 of the exhaust pipe 120 and pollutes the environment around the laundry treating apparatus 100 can be reduced, which greatly improves the cleanliness of the environment around the laundry treating apparatus 100 and improves the user experience.

[0054] Specifically, the inlet 121 of the exhaust pipe 120 is arranged higher than the highest design water level of the cylinder body 110. Since the actual washing water level in the containing cavity 111 during the washing process is not higher than the highest design water level of the cylinder body 110 and is not lower than the lowest design water level of the cylinder body 110, that is, the actual washing water level in the containing cavity 111 during the washing process is below the inlet 121 of the exhaust pipe 120, and the case that the laundry treating apparatus 100 performs washing operation using the highest design water level during the washing process is less, that is, when the inlet 121 of the exhaust pipe 120 is higher than the highest design water level of the cylinder body 110, in the actual application scenario, the actual washing water level in the containing cavity 111 is below the inlet 121 of the exhaust pipe 120 and has a certain distance from the inlet 121 of the exhaust pipe 120, thereby the possibility that the foam in the containing cavity 111 flows into the exhaust pipe 120 through the inlet 121 located above the highest design water level of the cylinder body 110 can be reduced, and the possibility that the foam overflows to the external environment through the outlet 122 of the exhaust pipe 120 can be reduced, and the cleanliness of the environment around the laundry treating apparatus 100 is greatly improved. It can be understood that the distance between the inlet 121 of the exhaust pipe 120 and the highest design water level of the cylinder body 110 can be reasonably designed to reduce the possibility that the foam flows into the exhaust pipe 120 through the inlet 121.

[0055] Specifically, the inlet 121 of the exhaust pipe 120 is arranged below the lowest design water level of the tub 110. Since the actual washing water level in the containing cavity 111 during the washing process is not higher than the highest design water level of the tub 110 and is not lower than the lowest design water level of the tub 110, i.e., the actual washing water level in the containing cavity 111 during the washing process is above the inlet 121 of the exhaust pipe 120, the inlet 121 of the exhaust pipe 120 is always covered by liquid. During the washing process, the foam usually floats on the surface of the liquid, and therefore, there is little or almost no foam flowing into the exhaust pipe 120 through the inlet 121 below the lowest design water level of the tub 110. Therefore, the possibility of the foam in the containing cavity 111 overflowing to the external environment through the outlet 122 of the exhaust pipe 120 can be reduced, and the cleanliness of the surrounding environment of the laundry treatment apparatus 100 can be greatly improved. It can be understood that during the draining operation of the containing cavity 111, the actual washing water level in the containing cavity 111 will pass through the inlet 121 of the exhaust pipe 120. However, since the draining operation is usually performed after the washing process, and most of the foam is broken by fully contacting the laundry during the washing process, there is little or almost no foam on the surface of the liquid during the draining operation. During the draining process, the little foam on the surface of the liquid will be partially left on the laundry and partially drained with the liquid, and only a small part will flow into the exhaust pipe 120 through the inlet 121. This small part of the foam will be left in the exhaust pipe 120 and will not overflow through the outlet 122. Therefore, during the draining operation, there is almost no foam overflowing through the exhaust pipe 120, and thus the possibility of the foam in the containing cavity 111 overflowing to the external environment through the outlet 122 of the exhaust pipe 120 can be further reduced, and the cleanliness of the surrounding environment of the laundry treatment apparatus 100 can be greatly improved. As shown in FIGS. 1, 5, and 6, in some possible implemented embodiments provided by the present disclosure, the inlet 121 includes a first inlet 1211 (as an example of a first air inlet end), which is arranged above the highest design water level of the tub 110.

[0056] In this embodiment, the exhaust pipe 120 can be provided with a first inlet 1211 located above the highest design water level of the drum 110, and the exhaust pipe 120 communicates with the drum 110 through the first inlet 1211 located above the highest design water level of the drum 110, so that during the water filling operation of the laundry treatment apparatus 100, the gas in the containing cavity 111 is discharged by the exhaust pipe 120 through the first inlet 1211 to ensure the smoothness and rapidity of the water filling operation. At the same time, since the first inlet 1211 is located above the highest design water level of the drum 110, in the actual scenario, the actual washing water level in the containing cavity 111 is located below the first inlet 1211 of the exhaust pipe 120, thereby the possibility of the foam in the containing cavity 111 flowing into the exhaust pipe 120 through the first inlet 1211 located above the highest design water level of the drum 110 can be reduced, and further the possibility of the foam overflowing to the outside environment through the outlet 122 of the exhaust pipe 120 can be reduced, thereby the cleanliness of the environment around the laundry treatment apparatus 100 is greatly improved.

[0057] Further, the distance between the first inlet 1211 of the exhaust pipe 120 and the highest design water level of the drum 110 can be reasonably designed to further reduce the possibility of the foam flowing into the exhaust pipe 120 through the first inlet 1211. It can be understood that the highest design water level of the drum 110 of the drum-type washing machine is generally at the middle position of the washing machine drum 110 or slightly higher than the middle position, and therefore the distance between the first inlet 1211 and the highest design water level of the drum 110 can be set in the range of 10 cm to 30 cm to further reduce the possibility of the foam flowing into the exhaust pipe 120 through the inlet 121. Since the liquid surface will be shaken and uneven due to the movement of the drum 110 and the impact of the laundry during the washing process, and the foam is often located on the liquid surface during the washing process, by setting the first inlet 1211 at 10 cm to 30 cm above the highest design water level, the possibility of the foam entering the exhaust pipe 120 through the first inlet 1211 due to the shaking of the liquid surface can be reduced. Specifically, the distance between the first inlet 1211 and the highest design water level of the drum 110 can be 10 cm, 15 cm, 20 cm, 25 cm, 30 cm, or other values.

[0058] It can be understood that in this example, the outlet 122 of the exhaust pipe 120 can be located above the first inlet 1211, below the first inlet 1211, or flush with the first inlet 1211.

[0059] As shown in FIGS. 2, 8, and 9, in some possible implemented embodiments provided by the present disclosure, the inlet 121 includes a second inlet 1212 (as an example of a second air inlet), which is located below the lowest design water level of the drum 110.

[0060] In this embodiment, the exhaust pipe 120 can be provided with a second inlet 1212 located below the lowest design water level of the tub 110, and the exhaust pipe 120 communicates with the tub 110 through the second inlet 1212 located below the lowest design water level of the tub 110. In this way, the actual washing water level in the containing cavity 111 during the washing process is located above the inlet 121 of the exhaust pipe 120, and the inlet 121 of the exhaust pipe 120 is always covered by liquid, so there are very few or almost no foams flowing into the exhaust pipe 120 through the inlet 121 located below the lowest design water level of the tub 110. At the same time, since the draining operation is usually performed after the washing process is completed, and most of the foams are broken after being fully contacted with the laundry during the washing process, there are few or almost no foams on the surface of the liquid during the draining operation. During the draining process, the few foams on the surface of the liquid will be partially left on the laundry and partially drained with the liquid, and only a very small part of the foams will flow into the exhaust pipe 120 through the second inlet 1212. This very small part of the foams will be left inside the exhaust pipe 120 and will not overflow through the outlet 122. Therefore, during the draining operation, there are almost no foams overflowing through the outlet 122 of the exhaust pipe 120. Thus, the possibility of the foams in the containing cavity 111 overflowing through the outlet 122 of the exhaust pipe 120 to the external environment can be further reduced, and the cleanliness of the surrounding environment of the laundry treatment apparatus 100 is greatly improved.

[0061] It can be understood that, as shown in FIGS. 2 and 9, in this example, the outlet 122 of the exhaust pipe 120 can be located above the second inlet 1212. Thus, when a very small part of the foams flows into the exhaust pipe 120 through the second inlet 1212 during the draining process, since the outlet 122 of the exhaust pipe 120 is located above the second inlet 1212, the very small part of the foams will be left inside the exhaust pipe 120 and will not overflow through the outlet 122. Thus, the possibility of the foams in the containing cavity 111 overflowing through the outlet 122 of the exhaust pipe 120 to the external environment can be further reduced, and the cleanliness of the surrounding environment of the laundry treatment apparatus 100 is greatly improved.

[0062] As shown in FIGS. 3, 4, 5, 6, 7, 8, and 9, in some possible implemented embodiments provided by the present disclosure, the first inlet 1211 is located above the highest water level of the tub 110, and the second inlet 1212 is located below the lowest water level of the tub 110.

[0063] In the embodiment, the inlet of the exhaust pipe 120 is two, including a first inlet 1211 located above the highest design water level of the cylinder body 110, and a second inlet 1212 located below the lowest design water level of the cylinder body 110. The exhaust pipe 120 is in communication with the cylinder body 110 through the first inlet 1211 and the second inlet 1212. Compared with the exhaust pipe 120 being provided with only one inlet and being in communication with the cylinder body 110, the exhaust capacity of the exhaust pipe 120 is increased, and the smoothness and rapidity of the water inlet operation of the laundry treatment apparatus 100 can be further improved. However, the arrangement increases the cost of the exhaust pipe 120 and complicates the design of the cylinder body 110. Therefore, the number of the inlets 121 of the exhaust pipe 120 can be reasonably designed according to the speed requirement of the water inlet operation of the laundry treatment apparatus 100, the manufacturing cost, and the like.

[0064] Meanwhile, in the embodiment, the exhaust pipe 120 is in communication with the cylinder body 110 through the first inlet 1211 located above the highest design water level of the cylinder body 110, and is in communication with the cylinder body 110 through the second inlet 1212 located below the lowest design water level of the cylinder body 110. Since the first inlet 1211 is located above the highest design water level of the cylinder body 110, in an actual scenario, the actual washing water level in the containing cavity 111 is located below the first inlet 1211 of the exhaust pipe 120. Thus, the possibility of the foam in the containing cavity 111 flowing into the exhaust pipe 120 through the first inlet 1211 located above the highest design water level of the cylinder body 110 can be reduced, and the possibility of the foam overflowing to the outside environment through the outlet 122 of the exhaust pipe 120 can be reduced, thereby greatly improving the cleanliness of the circumferential environment of the laundry treatment apparatus 100. Since the second inlet 1212 is located below the lowest design water level of the cylinder body 110, the inlet 121 of the exhaust pipe 120 is always covered by liquid during the washing process. Therefore, there is little or almost no foam flowing into the exhaust pipe 120 through the inlet 121 located below the lowest design water level of the cylinder body 110, and there is almost no foam overflowing through the exhaust pipe 120 during the draining operation. Thus, the possibility of the foam in the containing cavity 111 overflowing to the outside environment through the outlet 122 of the exhaust pipe 120 can be further reduced, thereby greatly improving the cleanliness of the circumferential environment of the laundry treatment apparatus 100.

[0065] In this embodiment, the outlet 122 is located between the first inlet 1211 and the second inlet 1212, thereby ensuring that the airflow flows through the first inlet 1211, the second inlet 1212, and is smoothly discharged from the outlet 122 of the exhaust pipe 120, and at the same time, the outlet 122 of the exhaust pipe 120 can be located above the second inlet 1212, so that when a small amount of foam flows into the exhaust pipe 120 through the second inlet 1212 during the water draining process, the small amount of foam will remain inside the exhaust pipe 120 and will not overflow through the outlet 122, thereby further reducing the possibility of the foam in the containing cavity 111 overflowing through the outlet 122 of the exhaust pipe 120 to the external environment, greatly improving the cleanliness of the environment around the laundry treating apparatus 100. At the same time, this arrangement can reduce the overall volume of the exhaust pipe 120, save the material of the exhaust pipe 120, reduce the occupation of the external space of the drum 110 of the laundry treating apparatus 100 by the exhaust pipe 120, so that there is enough space outside the drum 110 to arrange other components, and at the same time, it is beneficial to reduce the manufacturing cost and is suitable for popularization and application.

[0066] In the above embodiment, the vertical distance between the outlet 122 and the first inlet 1211 is less than the vertical distance between the outlet 122 and the second inlet 1212. That is, the outlet 122 is arranged close to the first inlet 1211, and the outlet 122 is arranged away from the second inlet 1212, thereby making the vertical distance between the outlet 122 and the second inlet 1212 larger, and making the height difference between the outlet 122 and the second inlet 1212 larger, thereby increasing the possibility of the foam flowing into the exhaust pipe 120 through the second inlet 1212 overflowing through the outlet 122, and further reducing the possibility of the foam in the containing cavity 111 overflowing through the outlet 122 of the exhaust pipe 120 to the external environment, greatly improving the cleanliness of the environment around the laundry treating apparatus 100.

[0067] As shown in FIGS. 3, 4, 5, 10 and 11, in some possible implemented embodiments provided by the present disclosure, the exhaust pipe 120 includes a first pipe 123 in communication with the first inlet 1211, and a second pipe 124 in communication with the second inlet 1212, and the cross-sectional area of the second pipe 124 perpendicular to the fluid flow direction is greater than the cross-sectional area of the first pipe 123 perpendicular to the fluid flow direction, that is, the second pipe 124 is thicker than the first pipe 123.

[0068] Since the second inlet 1212 is located below the lowest design water level of the cylinder body 110, and the first inlet 1211 is located above the highest design water level of the cylinder body 110, the probability of the foam flowing into the exhaust pipe 120 through the second inlet 1212 is less than the probability of the foam flowing into the exhaust pipe 120 through the first inlet 1211, therefore, the second pipeline 124 connected with the second inlet 1212 with a smaller probability of foam entering is designed as a thicker pipeline, and the first pipeline 123 connected with the first inlet 1211 with a larger probability of foam entering is designed as a thinner pipeline, that is, the cross-sectional area of the second pipeline 124 perpendicular to the fluid flow direction is greater than the cross-sectional area of the first pipeline 123 perpendicular to the fluid flow direction, so that the smoothness and rapidity of the exhaust pipe 120 in exhausting can be improved without increasing the probability of the foam flowing into the interior of the exhaust pipe 120, to ensure the smoothness and rapidity of the water inlet operation.

[0069] Specifically, during the water inlet operation, most of the gas in the containing cavity 111 can be smoothly exhausted through the second inlet 1212 by the second pipeline 124 with a larger cross-sectional area and the outlet 122, and a small part of the gas in the containing cavity 111 is smoothly exhausted through the first inlet 1211 by the first pipeline 123 with a smaller cross-sectional area and the outlet 122, to ensure the smoothness and rapidity of the containing cavity 111 in exhausting through the exhaust pipe 120, to ensure the smoothness and rapidity of the water inlet operation.

[0070] As shown in FIGS. 10 and 11, in some possible implemented embodiments provided by the present disclosure, the exhaust pipe 120 is provided with a broken wall structure 126 on the inner wall between the first inlet 1211 and the outlet 122, thereby the broken wall operation can be performed on the foam flowing into the exhaust pipe 120 through the first inlet 1211, the possibility of the foam flowing into the outlet 122 through the first inlet 1211 is reduced, and the possibility of the foam overflowing to the external environment through the outlet 122 of the exhaust pipe 120 is further reduced, thereby the cleanliness of the environment around the laundry treating apparatus 100 is greatly improved.

[0071] Further, the broken wall structure 126 includes at least one of a tapered structure, a bent structure, a convex rib, etc., the broken wall structure 126 such as the tapered structure, the bent structure, the convex rib, etc. can increase the possibility of the foam contacting the inner wall of the exhaust pipe 120, and further realize the broken wall operation of the foam, and reduce the possibility of the foam overflowing to the external environment through the outlet 122 of the exhaust pipe 120.

[0072] The tapering structure is configured such that the cross-sectional area of the exhaust pipe 120 gradually decreases from the first inlet 1211 to the outlet 122. That is, the opening area of the first inlet 1211 is greater than the opening area of the outlet 122, so that the exhaust pipe 120 is provided with a tapering structure to achieve the wall breaking operation of the foam. It can be understood that the exhaust pipe 120 can be provided as a whole tapering structure or partially provided as a tapering structure in the direction from the first inlet 1211 to the outlet 122.

[0073] It can be understood that in some examples, the exhaust pipe 120 is also provided with a wall breaking structure on the inner wall between the second inlet 1212 and the outlet 122 to perform a wall breaking operation on the foam flowing from the second inlet 1212 to the outlet 122, thereby reducing the possibility of the foam overflowing from the outlet 122 of the exhaust pipe 120 to the external environment.

[0074] In some possible implemented embodiments provided by the present disclosure, the first inlet 1211 can be arranged on the side or top of the cylinder body 110, as long as the first inlet 1211 is located above the highest design water level of the cylinder body 110, thereby expanding the arrangement range of the first inlet 1211 and reducing the design requirements.

[0075] In some possible implemented embodiments provided by the present disclosure, the second inlet 1212 can be arranged on the side or bottom of the cylinder body 110, as long as the second inlet 1212 is located below the lowest design water level of the cylinder body 110, thereby expanding the arrangement range of the second inlet 1212 and reducing the design requirements.

[0076] As shown in FIGS. 7 and 9, in some possible implemented embodiments provided by the present disclosure, the cylinder body 110 includes an outer cylinder 113 and an inner cylinder 112, the inner cylinder 112 is rotatably arranged inside the outer cylinder 113, the outer cylinder 113 forms a containing cavity 111 for containing liquid, the inner cylinder 112 forms a laundry containing cavity for containing laundry, a through hole is formed in the side wall of the inner cylinder 112 to communicate the inner cylinder 112 and the outer cylinder 113, so that the liquid contained in the outer cylinder 113 can flow into the laundry containing cavity through the through hole to wet the laundry, and the laundry can be washed by rotating the inner cylinder 112 relative to the outer cylinder 113 to make the laundry fall from a high place and hit on the inner cylinder 112.

[0077] In the above embodiment, the first inlet 1211 of the exhaust pipe 120 can communicate with the side wall or top wall of the outer cylinder 113, for example, the side wall or top wall of the outer cylinder 113 is provided with a first connecting hole, and the first inlet 1211 of the exhaust pipe 120 communicates with the outer cylinder 113 through the first connecting hole.

[0078] As shown in FIG. 1, FIG. 3, FIG. 5 and FIG. 7, further, the first inlet 1211 can be arranged at the top wall of the outer drum 113, since generally, the highest design water level of the drum 110 of the drum washing machine is usually at the middle position of the drum 110 or slightly higher than the middle position, therefore, arranging the first inlet 1211 at the top wall of the outer drum 113 can ensure that the distance between the first inlet 1211 and the highest design water level of the drum 110 is large enough, which can reduce the possibility that the foam of the liquid surface flows into the first inlet 1211 due to the shaking of the liquid surface under the action of the movement of the drum 110 and the impact of the laundry during the washing process of the laundry treatment apparatus 100, and can further reduce the possibility that the foam in the containing cavity 111 overflows to the outside environment through the outlet 122 of the exhaust pipe 120, greatly improving the cleanliness of the environment around the laundry treatment apparatus 100.

[0079] It can be understood that in other examples, the first inlet 1211 can also communicate with the side wall of the outer drum 113, and the top of the first inlet 1211 is arranged flush with the top wall of the outer drum 113, so as to ensure that the distance between the first inlet 1211 and the highest design water level of the drum 110 is large enough, reducing the possibility that the foam of the liquid surface flows into the first inlet 1211 due to shaking.

[0080] In the above embodiment, the second inlet 1212 of the exhaust pipe 120 can be connected with the side wall or the bottom wall of the outer drum 113, for example, the side wall or the bottom wall of the outer drum 113 is provided with a second connecting hole, and the second inlet 1212 of the exhaust pipe 120 is connected with the outer drum 113 through the second connecting hole.

[0081] Further, as shown in FIG. 2, FIG. 3, FIG. 5 and FIG. 9, the second inlet 1212 communicates with the side wall of the outer drum 113, since generally, the layout of the laundry treatment apparatus 100 in the height direction is relatively compact, if the second inlet 1212 communicates with the bottom wall of the outer drum 113, part of the structure of the exhaust pipe 120 will occupy the space at the bottom of the outer drum 113, which is not conducive to the arrangement of other components, and the layout of the original other components at the bottom of the outer drum 113 needs to be changed. In this embodiment, by communicating the second inlet 1212 with the side wall of the outer drum 113, the layout of the original other components at the bottom of the outer drum 113 can be arranged without changing, and the exhaust pipe 120 can be arranged at the side of the outer drum 113, which is simple in design, convenient in operation, and suitable for popularization and application.

[0082] As shown in FIGS. 4 and 5, in some possible implementation embodiments provided by the present disclosure, the clothes treatment apparatus 100 further includes a housing 140 disposed outside the drum 110 to provide good support and protection for the drum 110, and a drain pipe 130 disposed between the housing 140 and the drum 110, which communicates the containing cavity 111 with the external environment, so that the liquid in the containing cavity 111 can be discharged to the external environment through the drain pipe 130, thereby realizing the drainage operation of the clothes treatment apparatus 100.

[0083] In an example, the exhaust pipe 120 is located between the drum 110 and the housing 140, and the outlet 122 of the exhaust pipe 120 communicates with the drain pipe 130, so that the outlet 122 of the exhaust pipe 120 communicates with the external environment through the drain pipe 130, thereby realizing the communication between the inside of the containing cavity 111 and the external environment through the exhaust pipe 120, and providing a flow space for the gas in the containing cavity 111 to be discharged. At the same time, since the drain pipe 130 of the clothes treatment apparatus 100 is usually connected to the sewage outlet of the sewer in the application scenario, if the foam flows into the exhaust pipe 120, the foam in the exhaust pipe 120 is directly discharged to the sewage outlet of the sewer through the outlet 122 and the drain pipe 130, and does not pollute the environment around the clothes treatment apparatus 100, so that the cleanliness of the environment around the clothes treatment apparatus 100 can be ensured, and the user experience is improved.

[0084] In another example, the exhaust pipe 120 is located between the drum 110 and the housing 140, the housing 140 is provided with a through hole 141, the outlet 122 of the exhaust pipe 120 communicates with the through hole 141, and the clothes treatment apparatus 100 further includes a transition pipe located outside the housing 140 and communicating the through hole 141 with the drain pipe 130, so that the inside of the containing cavity 111 communicates with the external environment through the exhaust pipe 120, the transition pipe and the drain pipe 130, thereby providing a flow space for the gas in the containing cavity 111 to be discharged. At the same time, since the drain pipe 130 of the clothes treatment apparatus 100 is usually connected to the sewage outlet of the sewer in the application scenario, if the foam flows into the exhaust pipe 120, the foam in the exhaust pipe 120 is directly discharged to the sewage outlet of the sewer through the outlet 122, the transition pipe and the drain pipe 130, and does not pollute the environment around the clothes treatment apparatus 100, so that the cleanliness of the environment around the clothes treatment apparatus 100 can be ensured, and the user experience is improved.

[0085] In some possible implementation embodiments provided by the present disclosure, the clothes treatment apparatus 100 further includes a water collecting device disposed outside the drum 110, and the outlet 122 communicates with the water collecting device.

[0086] The water collecting device is used to collect liquid. Therefore, if foam flows into the exhaust pipe 120, the foam in the exhaust pipe 120 is directly discharged into the water collecting device due to the communication between the outlet 122 of the exhaust pipe 120 and the water collecting device, is collected in the water collecting device, and does not pollute the environment around the laundry treatment apparatus 100, so that the cleanliness of the environment around the laundry treatment apparatus 100 can be ensured, and the user experience is improved.

[0087] It can be understood that the laundry treatment apparatus 100 further includes a housing 140 arranged outside the drum 110, and the water collecting device can be arranged between the housing 140 and the drum 110 or outside the housing 140. The water collecting device is detachably connected to the housing 140, so that the water collecting device can be easily detached from the housing 140, and the liquid collected by the water collecting device can be treated. Alternatively, the water collecting device can be in communication with the drain pipe 130, so that the collected liquid is discharged to a drain outlet of a sewer pipe through the drain pipe 130.

[0088] As shown in FIGS. 4 and 5, in some possible implemented embodiments provided by the present disclosure, the laundry treatment apparatus 100 further includes a housing 140, an electrical device 150, and a communication pipe. The housing 140 is arranged outside the drum 110 to support and protect the drum 110. The electrical device 150 is arranged between the housing 140 and the drum 110, and can include an electrical control board, a motor, a fan, a heater, etc. The communication pipe is arranged between the housing 140 and the drum 110, a first end of the communication pipe is in communication with the outlet 122, and a second end of the communication pipe extends to a position between the housing 140 and the drum 110 and away from the electrical device 150.

[0089] Since the inlet 121 of the exhaust pipe 120 in the embodiments of the present disclosure is located outside the designed washing water level range of the drum 110, the probability of foam entering the exhaust pipe 120 is small, and the probability of foam overflowing through the outlet 122 of the exhaust pipe 120 is smaller. Therefore, by communicating the first end of the communication pipe with the outlet 122 of the exhaust pipe 120 and extending the second end of the communication pipe to a position between the housing 140 and the drum 110 and away from the electrical device 150, if foam flows into the exhaust pipe 120, the foam in the exhaust pipe 120 is discharged through the communication pipe to a position between the housing 140 and the drum 110 and away from the electrical device 150. Since the amount of foam is small, the foam is discharged in the housing 140 and away from the electrical device 150, so that the electrical device 150 is not damaged, and the good reliability of the laundry treatment apparatus 100 can be ensured. At the same time, the environment around the laundry treatment apparatus 100 is not polluted, so that the cleanliness of the environment around the laundry treatment apparatus 100 can be ensured, and the user experience is improved.

[0090] Specifically, no electrical components 150 are arranged at the outside of the drum 110 at the front left of the clothes treatment apparatus 100, and the second end of the communication pipe can be extended to the outside of the drum 110 at the front left of the clothes treatment apparatus 100. It can be understood that the second end of the communication pipe can also be extended to other positions that meet the requirements.

[0091] As shown in FIGS. 10 and 11, in some possible implementation embodiments provided by the present disclosure, the exhaust pipe 120 is further provided with a connecting joint 125 arranged at the outlet 122. The arrangement of the connecting joint 125 facilitates the connection of the outlet 122 of the exhaust pipe 120 with other pipelines such as the transition pipe, the communication pipe, the drain pipe 130, etc., and is simple to operate and convenient to disassemble and assemble.

[0092] Further, the connecting joint 125 at the outlet also has a certain wall-breaking effect on the foam, which can further reduce the possibility of foam overflowing from the outlet 122 of the exhaust pipe 120.

[0093] As shown in FIGS. 10 and 11, further, the exhaust pipe 120 further includes a spring buckle 127, which can reliably and stably fix the inlet 121 and / or the outlet 122 of the exhaust pipe 120 at the docking position, so as to improve the connection reliability and sealing performance of the inlet 121 of the exhaust pipe 120 with the drum 110 and improve the connection reliability and sealing performance of the outlet 122 of the exhaust pipe 120 with the docking pipeline.

[0094] Specifically, when the exhaust pipe 120 includes the first pipeline 123, the spring buckle 127 can be arranged at the first inlet 1211 and / or the outlet 122 of the first pipeline 123. When the exhaust pipe 120 includes the second pipeline 124, the spring buckle 127 can be arranged at the second inlet 1212 and / or the outlet 122 of the second pipeline 124.

[0095] As shown in FIGS. 10 and 11, further, the exhaust pipe 120 further includes a spring buckle 127, which can reliably and stably fix the inlet 121 and / or the outlet 122 of the exhaust pipe 120 at the docking position, so as to improve the connection reliability and sealing performance of the inlet 121 of the exhaust pipe 120 with the drum 110 and improve the connection reliability and sealing performance of the outlet 122 of the exhaust pipe 120 with the docking pipeline.

[0096] Specifically, when the exhaust pipe 120 includes the first pipeline 123, the spring buckle 127 can be arranged at the first inlet 1211 and / or the outlet 122 of the first pipeline 123. When the exhaust pipe 120 includes the second pipeline 124, the spring buckle 127 can be arranged at the second inlet 1212 and / or the outlet 122 of the second pipeline 124.

[0097] In addition, the exhaust pipe 120 can be directly guided from the drum 110 of the washing machine to a water vapor circulation branch such as a washing liquid dispensing box of the laundry treatment apparatus 100, so that the overflowed bubbles can directly enter the internal circulation loop of the laundry treatment apparatus 100.

[0098] In summary, the laundry treatment apparatus 100 provided by the present disclosure can be a drum washing machine, or the laundry treatment apparatus 100 can further include a drying channel, i.e., the laundry treatment apparatus 100 can be a washing-drying integrated machine with a drying function.

[0099] The laundry treatment apparatus provided by the embodiments of the present disclosure includes a drum provided with a containing cavity for containing liquid, and an exhaust pipe provided outside the drum, a first end of the exhaust pipe being in communication with the containing cavity, and a second end of the exhaust pipe being in communication with the outside of the laundry treatment apparatus, wherein the first end of the exhaust pipe is located outside a washing water level range of the drum, and the washing water level range of the drum is from a lowest design water level of the drum to a highest design water level of the drum.

[0100] In some embodiments, the first end of the exhaust pipe includes a first air inlet end, the first air inlet end being higher than the highest design water level of the drum, and the first air inlet end being in communication with a top or a side of the drum.

[0101] In some embodiments, the first end of the exhaust pipe includes a second air inlet end, the second air inlet end being lower than the lowest design water level of the drum, and the second end of the exhaust pipe being located above the second air inlet end, and the second air inlet end being in communication with a bottom or a side of the drum.

[0102] In some embodiments, the first end of the exhaust pipe includes a first air inlet end, the first air inlet end being located above the highest water level of the drum, and the first air inlet end being in communication with a top or a side of the drum, and the first end of the exhaust pipe includes a second air inlet end, the second air inlet end being located below the lowest water level of the drum, and the second air inlet end being in communication with a bottom or a side of the drum, and the second end of the exhaust pipe is located between the first air inlet end and the second air inlet end.

[0103] In some embodiments, a vertical distance between the second end of the exhaust pipe and the first air inlet end is less than a vertical distance between the second end of the exhaust pipe and the second air inlet end.

[0104] In some embodiments, the exhaust pipe includes a first pipe in communication with the first air inlet end, and a second pipe in communication with the second air inlet end, and a cross-sectional area of the second pipe perpendicular to a fluid flow direction is greater than a cross-sectional area of the first pipe perpendicular to the fluid flow direction.

[0105] In some embodiments, the exhaust pipe is provided with a broken wall structure on the inner wall between the first air inlet end and the second end of the exhaust pipe, the broken wall structure comprising at least one of a tapered structure, a bent structure, and a protruding rib; wherein the tapered structure is configured such that the cross-sectional area of the exhaust pipe gradually decreases from the first air inlet end to the second end of the exhaust pipe.

[0106] In some embodiments, the cylinder body comprises an outer cylinder and an inner cylinder rotatably arranged inside the outer cylinder, and the first air inlet end is in communication with the top wall of the outer cylinder.

[0107] In some embodiments, the cylinder body comprises an outer cylinder and an inner cylinder rotatably arranged inside the outer cylinder, and the second air inlet end is in communication with the side wall of the outer cylinder.

[0108] In some embodiments, the laundry treating apparatus further comprises a housing arranged outside the cylinder body; a drain pipe arranged between the cylinder body and the housing, the drain pipe being in communication with the accommodation cavity and the external environment; wherein the second end of the exhaust pipe is in communication with the drain pipe, or the second end of the exhaust pipe is in communication with a through hole of the housing, and the laundry treating apparatus further comprises a transition pipe located outside the housing and in communication with the through hole and the drain pipe.

[0109] In some embodiments, the laundry treating apparatus further comprises a water collecting device arranged outside the cylinder body, and the second end of the exhaust pipe is in communication with the water collecting device.

[0110] In some embodiments, the laundry treating apparatus further comprises a housing arranged outside the cylinder body; an electrical appliance arranged between the housing and the cylinder body; and a communication pipe arranged between the housing and the cylinder body, a first end of the communication pipe being in communication with the second end of the exhaust pipe, and a second end of the communication pipe extending between the housing and the cylinder body and being arranged away from the electrical appliance.

[0111] In some embodiments, the exhaust pipe is further provided with a connecting joint arranged at the second end of the exhaust pipe.

[0112] In the description of the present disclosure, the term "a plurality of" refers to two or more, unless otherwise explicitly limited, and the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship described in the drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure; the terms "connection", "mounting", "fixing" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0113] Many modifications and variations of this disclosure can be made for those skilled in the art without departing from its spirit and principles. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this disclosure should be included in the scope of protection of this disclosure.

Claims

1. A laundry treating apparatus (100), characterized by, The laundry treating apparatus (100) comprises: a tub (110) provided with a containing cavity (111) for containing liquid; an exhaust pipe (120) provided outside the tub (110), a first end of the exhaust pipe (120) being provided with an inlet (121) in communication with the containing cavity (111), a second end of the exhaust pipe (120) being provided with an outlet (122); wherein the inlet (121) is located outside a designed washing water level range of the tub (110), the designed washing water level range of the tub (110) being not higher than a highest designed water level of the tub (110) and not lower than a lowest designed water level of the tub (110).

2. The laundry treating apparatus (100) according to claim 1, wherein the inlet (121) comprises a first inlet (1211) located above the highest designed water level of the tub (110); wherein the first inlet (1211) is in communication with a top or a side of the tub (110).

3. The laundry treating apparatus (100) according to claim 1, wherein the inlet (121) comprises a second inlet (1212) located below the lowest designed water level of the tub (110), the outlet (122) being located above the second inlet (1212); wherein the second inlet (1212) is in communication with a bottom or a side of the tub (110).

4. The laundry treating apparatus (100) according to claim 1, wherein the inlet (121) comprises a first inlet (1211) located above the highest water level of the tub (110), the first inlet (1211) being in communication with a top or a side of the tub (110); the inlet (121) comprises a second inlet (1212) located below the lowest water level of the tub (110), the second inlet (1212) being in communication with a bottom or a side of the tub (110); wherein the outlet (122) is located between the first inlet (1211) and the second inlet (1212).

5. The laundry treating apparatus (100) according to claim 4, wherein a vertical distance between the outlet (122) and the first inlet (1211) is smaller than a vertical distance between the outlet (122) and the second inlet (1212).

6. The laundry treating apparatus (100) according to claim 4 or 5, wherein the exhaust pipe (120) comprises a first pipe (123) in communication with the first inlet (1211) and a second pipe (124) in communication with the second inlet (1212), a cross-sectional area of the second pipe (124) perpendicular to a fluid flow direction being greater than a cross-sectional area of the first pipe (123) perpendicular to the fluid flow direction.

7. The laundry treating apparatus (100) according to any one of the preceding claims, wherein the exhaust duct (120) is provided with a break wall structure (126) on an inner wall between the first inlet (1211) and the outlet (122), the break wall structure (126) comprising at least one of a tapered structure, a bent structure, a protruding rib. In some embodiments, the tapered structure is configured such that the cross-sectional area of the exhaust duct (120) gradually decreases from the first inlet (1211) to the outlet (122).

8. The laundry treating apparatus (100) according to any one of the preceding claims, wherein the drum (110) comprises an outer drum (113) and an inner drum (112) rotatably arranged inside the outer drum (113), and the first inlet (1211) is in communication with a top wall of the outer drum (113).

9. The laundry treating apparatus (100) according to any one of the preceding claims, wherein the drum (110) comprises an outer drum (113) and an inner drum (112) rotatably arranged inside the outer drum (113), and the second inlet (1212) is in communication with a side wall of the outer drum (113). Further comprising: a housing (140) arranged outside the drum (110); a drain pipe (130) arranged between the drum (110) and the housing (140), the drain pipe (130) being in communication with the containing cavity (111) and an external environment; 10.The laundry treating apparatus (100) according to any one of claims 1 to 9, wherein, wherein the outlet (122) is in communication with the drain pipe (130); or the outlet (122) is in communication with a through hole (141) of the housing (140), and the laundry treating apparatus (100) further comprises a transition pipe arranged outside the housing (140) and in communication with the through hole (141) and the drain pipe (130). Further comprising: a water collecting device arranged outside the drum (110), the outlet (122) being in communication with the water collecting device. Further comprising: 11.The laundry treating apparatus (100) according to any one of claims 1 to 10, wherein, a housing (140) arranged outside the drum (110); an electric device (150) arranged between the housing (140) and the drum (110); 12.The laundry treating apparatus (100) according to any one of claims 1 to 11, wherein, a communication pipe arranged between the housing (140) and the drum (110), a first end of the communication pipe being in communication with the outlet (122), and a second end of the communication pipe extending between the housing (140) and the drum (110) and being arranged away from the electric device (150).

13. The laundry treating apparatus (100) according to any one of the preceding claims, wherein the exhaust duct (120) is further provided with a connecting joint (125) mounted at the outlet (122). ​ ​ ​ ​

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