Washing machine and control method of washing machine

Abstract

The present application provides a washing machine and a control method thereof. The washing machine comprises: an outer drum having a drum opening and a drain opening; a cover body lockably arranged on the outer drum to open and close the drum opening; and a drying assembly comprising a gas supply member and a drying pipeline in communication with the gas supply member, the drying pipeline being in communication with the drain opening, wherein the cover body closes the drum opening when the gas supply member supplies gas to the outer drum through the drying pipeline. In the present application, the drying assembly realizes drying in the outer drum, avoids bacterial growth and secondary pollution problems in the outer drum, and can also well dry the dead zones such as the area around the drain opening and the bottom of the outer drum, so that the drying is more thorough and hygienic. At the same time of supplying gas to the outer drum by the gas supply member, the cover body is kept in a locked state, which avoids rapid overflow of the gas out of the machine body and avoids the high-humidity gas from randomly flowing in the machine body, thereby preventing the parts from being damaged due to moisture. Meanwhile, the cover body is prevented from repeatedly loosening and impacting the outer drum under the impact of the gas, thereby reducing the noise of the product.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of washing machines, in particular, to a washing machine and a control method of the washing machine. BACKGROUND

[0002] The existing washing machine, in the state that the washing machine is not used, the outer cover is generally closed, so that the inside of the washing machine forms an approximate closed space.

[0003] In this state, after each washing is completed, the inside of the washing machine is in a humid state, and in the case that the outer cover is closed, the moisture in the washing machine is not easy to discharge, and it is easy to breed mold in the machine, cause odor, form secondary pollution and other problems.

[0004] In order to solve the above problems, the user usually keeps the outer cover open, but the operation between the inner and outer barrels is still humid, and the effect is not good.

[0005] At present, the washing machine proposes a program that can dry the barrel after washing, which adopts the mode of inner barrel rotation, but in this way, the inner barrel rotation is cool wind, and the bottom of the outer barrel and the drain valve pipe opening are not easy to work, and the water in the barrel will still cause bacteria breeding and cause dirt accumulation.

[0006] Therefore, the present application is proposed. SUMMARY

[0007] In order to solve the above technical problems, the purpose of the present application is to provide a washing machine and a control method of the washing machine, which can effectively dry the outer barrel and the outer barrel drain opening through the drying assembly of the present application, and avoid bacteria breeding.

[0008] In order to solve the above technical problems, the basic idea of the technical scheme adopted by the present application is:

[0009] The present application provides a washing machine, comprising:

[0010] The outer barrel has a barrel opening and a drain opening;

[0011] The cover is lockably arranged on the outer barrel to open and close the barrel opening;

[0012] The drying assembly comprises a gas supply member and a drying pipeline in communication with the gas supply member, and the drying pipeline is in communication with the drain opening, wherein when the gas supply member supplies gas to the outer barrel through the drying pipeline, the cover closes the barrel opening.

[0013] The above technical scheme further comprises:

[0014] The drain valve;

[0015] A connecting pipe is connected with the drain valve and the drain port, and a side wall of the connecting pipe is provided with an air inlet, and the drying pipe is connected with the air inlet;

[0016] Preferably, a first one-way valve is arranged in the drying pipe and / or the air inlet, for one-way connection of the drying pipe to the connecting pipe.

[0017] In any of the above technical solutions, the drying pipe comprises:

[0018] A first pipe is connected with the air supply member and the drain port;

[0019] At least one second pipe is connected with the air supply member and the bottom of the outer tub;

[0020] Preferably, the drying pipe further comprises a main pipe connected with the air supply member, and the first pipe and the at least one second pipe are respectively connected with the main pipe, and the main pipe is provided with a heating member.

[0021] In any of the above technical solutions, the washing machine further comprises:

[0022] An inner tub is rotatably arranged in the outer tub, and the inner tub is provided with a plurality of through holes connected with the outer tub;

[0023] When the air supply member supplies air to the outer tub through the drying pipe, the inner tub rotates to drive the air to enter the inner tub through the through holes;

[0024] Preferably, a rotatable impeller is arranged in the inner tub, and at least part of the through holes are arranged on the bottom wall of the inner tub, and the impeller is provided with a plurality of air flow channels connected with the through holes on the bottom wall of the inner tub.

[0025] In any of the above technical solutions, a plurality of air permeable holes are arranged on the cover; and / or

[0026] A temperature measuring device is arranged on the cover.

[0027] In any of the above technical solutions, when the air supply member stops supplying air to the outer tub, the cover is unlocked from the tub opening of the outer tub;

[0028] Preferably, the outer tub and / or the cover is provided with a pop-up mechanism, and when the cover is unlocked, the pop-up mechanism pops up the cover from the tub opening of the outer tub.

[0029] The application further provides a control method of a washing machine, which is suitable for the washing machine of any of the above technical solutions, and comprises the following steps:

[0030] In response to the barrel drying instruction, the cover is locked to the outer barrel, and the air supply member supplies air to the outer barrel through the drying pipeline.

[0031] In any of the above technical solutions, before the step of controlling the air supply member to supply air to the outer barrel through the drying pipeline, the method further comprises:

[0032] Obtaining the state of the cover;

[0033] If the cover is in the locked state, the control of the air supply member to supply air to the outer barrel through the drying pipeline is performed, otherwise, the work of the air supply member is suspended and an alarm is issued.

[0034] In any of the above technical solutions, while controlling the air supply member to supply air to the outer barrel through the drying pipeline, the method further comprises: controlling the rotation of the inner barrel and / or the impeller;

[0035] Preferably, while controlling the air supply member to supply air to the outer barrel through the drying pipeline, the method further comprises: controlling the heating member to heat the air and detecting the temperature of the cover in real time;

[0036] When the detected temperature is less than or equal to a first preset temperature, the air supply member is controlled to stop working, and the cover is controlled to be popped open by the pop-up mechanism.

[0037] In any of the above technical solutions, the method further comprises:

[0038] When the detected temperature is greater than or equal to a second preset temperature, the heating member is controlled to stop working, and the air supply member is controlled to continue working.

[0039] The first preset temperature is less than the second preset temperature.

[0040] In the present application, the working of the air supply member drives the air to flow along the drying pipeline and enter the outer barrel through the drain port, and the air flow carries away the water in the drain port and the outer barrel, thereby drying the surrounding area of the drain port and the outer barrel, which is beneficial to realize the drying of the outer barrel and avoid the bacterial growth and secondary pollution problems in the outer barrel. Moreover, during the drying process, only the air supply member needs to be started, which makes the drying operation simple, and the drying efficiency is high and the effect is good. By setting the air supply member, the flow speed and intensity of the air are accelerated, which is beneficial to improve the drying speed. Moreover, since the drying pipeline is communicated with the drain port, the surrounding area of the drain port and the dead area such as the bottom of the outer barrel can also be well dried, which realizes more thorough and sanitary drying of the outer barrel.

[0041] At the same time, the cover is kept in the locked state while the air supply member supplies air to the outer tub, so as to avoid the rapid overflow of the air outside the machine body, so that the air can fully move in the outer tub and contact the water vapor in the tub, dry the outer tub, and also avoid the high humidity air from flowing randomly in the machine body, causing the parts to be damaged by moisture. Also avoid the case of repeatedly loosening and impacting the outer tub under the impact of the gas, reduce the noise of the product.

[0042] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0043] The accompanying drawings, which are part of the present application, serve to provide a further understanding of the present application, and the illustrative embodiments of the present application and their descriptions serve to explain the present application, but do not constitute an improper limitation on the present application. Obviously, the drawings described below are only some embodiments, and those skilled in the art can obtain other drawings from these drawings without creative labor. In the drawings:

[0044] Figure 1 is a structural schematic diagram of a washing machine in an embodiment of the present application;

[0045] Figure 2 is a structural schematic diagram of part of the structure of a washing machine in an embodiment of the present application.

[0046] In the drawings,

[0047] 10, washing machine; 11, outer tub; 111, drain port; 12, cover; 13, drying assembly; 131, air supply member; 132, drying pipeline; 1321, first pipeline; 1322, second pipeline; 1323, main pipeline; 14, drain valve; 15, connecting pipe; 151, air inlet; 161, first one-way valve; 162, second one-way valve; 17, heating member; 18, inner tub; 19, impeller; 191, air flow channel.

[0048] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.

[0050] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] The washing machine 10 and its control method are described below with reference to illustrations of some embodiments of the present invention.

[0053] The washing machine 10 can be any structural form, such as a top-loading washing machine 10, a front-loading washing machine 10, or a washer-dryer combo.

[0054] An embodiment of the first aspect of the present invention provides a washing machine 10, including an outer tub 11, a cover 12, and a drying assembly 13.

[0055] like Figure 1 and Figure 2 As shown, the outer tub 11 has a tub opening and a drain outlet 111. Specifically, taking the pulsator washing machine 10 as an example, the tub opening is located at the upper end of the outer tub 11, and the drain outlet 111 is located on the bottom wall of the outer tub 11 to achieve thorough drainage.

[0056] The cover 12 is lockably mounted on the outer tub 11 to open and close the tub opening. It should be noted that this cover 12 is not an outer cover on the outer casing of the washing machine 10 for opening and closing the clothes loading opening, but rather an inner cover on the outer tub 11, which prevents wash water from overflowing during washing. The cover 12 can be locked onto the outer tub 11 by means of snaps, latches, or electromagnetic means to prevent it from coming loose during washing machine operation.

[0057] The drying assembly 13 includes an air supply component 131 and a drying pipe 132 connected to the air supply component 131. The drying pipe 132 is connected to the drain outlet 111. When the air supply component 131 supplies air to the outer barrel 11 through the drying pipe 132, the cover 12 closes the barrel opening.

[0058] For example, the gas supply component 131 is a fan.

[0059] In this invention, the gas supply component 131 drives the gas to flow along the drying pipe 132 and enter the outer tub 11 through the drain outlet 111. The gas flow carries away the water in the drain outlet 111 and the outer tub 11, thereby drying the area around the drain outlet 111 and the outer tub 11. This facilitates drying of the area inside the outer tub 11, avoiding bacterial growth and secondary contamination. Furthermore, during drying, only the gas supply component 131 needs to be activated, making the drying operation simple, efficient, and effective. The gas supply component 131 accelerates the gas flow rate and intensity, thus increasing the drying speed. Since the drying pipe 132 is connected to the drain outlet 111, this design also effectively dries the area around the drain outlet 111 and dead zones such as the bottom of the outer tub 11, resulting in a more thorough and hygienic drying of the outer tub 11.

[0060] Simultaneously, while the air supply component 131 supplies air to the outer barrel 11, the lid 12 remains closed to prevent rapid gas leakage from the machine. This allows the gas to circulate fully within the outer barrel 11, contacting and drying the outer barrel 11 with the moisture inside. It also prevents high-humidity gas from roaming freely within the machine, which could damage components due to moisture. Furthermore, it avoids repeated loosening and impacts of the lid 12 against the outer barrel 11 caused by the gas flow, thus reducing product noise.

[0061] Based on the above embodiments, this embodiment further includes the following:

[0062] The air supply component 131 is installed on the outer barrel 11. On the one hand, the outer barrel 11 provides an installation position for the air supply component 131, enabling its installation. On the other hand, the air supply component 131 increases the counterweight of the outer barrel 11, causing the center of gravity of the outer barrel 11 to shift downward, making the outer barrel 11 more stable and less prone to shaking.

[0063] Furthermore, the air supply component 131 is installed on the bottom of the outer barrel 11, which makes full use of the space under the outer barrel 11, avoids increasing the circumferential size of the machine body, and its position is closer to the drain outlet 111, which helps to shorten the length of the drying pipe 132, save materials and reduce costs, while reducing the resistance of gas flow, so that the gas has a greater flow speed. The gas with a greater flow speed can dry the outer barrel 11 faster, improve the drying speed, and achieve energy saving and emission reduction.

[0064] Based on any one or more of the above embodiments, this embodiment further includes the following:

[0065] The washing machine 10 also includes a drain valve 14 and a connecting pipe 15. One end of the connecting pipe 15 is located at the drain outlet 111, and the other end is used for installing the drain valve 14, thereby connecting the drain valve 14 and the drain outlet 111 through the connecting pipe 15 and improving the installation stability of the drain valve 14. For example, the connecting pipe 15 is installed on the outer tub 11 by welding, bonding, snap-fitting, or other methods, or the connecting pipe 15 and the outer tub 11 are integrally formed.

[0066] An air inlet 151 is provided on the side wall of the connecting pipe 15, and the drying pipe 132 is connected to the air inlet 151. In this way, the connecting pipe 15 forms a structure similar to a tee, with the opposite ends of the connecting pipe 15 connected to the drain outlet 111 and the drain valve 14, and the air inlet 151 on the side wall connected to the drying pipe 132.

[0067] During the barrel drying process, the gas supply component 131 drives the gas to flow along the drying pipe 132 and enter the connecting pipe 15 through the air inlet 151, and then enter the outer barrel 11 through the drain outlet 111. Understandably, sewage can easily accumulate at the connecting pipe 15 and the drain valve 14. Due to the confined space, the sewage remains for a longer time, leading to more bacterial growth. Conventional barrel drying methods cannot effectively dry the connecting pipe 15 and the drain valve 14. In this embodiment, by connecting the drying pipe 132 to the connecting pipe 15, air is supplied to the outer barrel 11 through the connecting pipe 15 and the drain outlet 111. This achieves both drying of the outer barrel 11 and drying of the connecting pipe 15 and the drain valve 14, preventing bacterial growth and improving the hygiene and cleanliness of the product.

[0068] Furthermore, to prevent backflow of washing water from the air inlet 151 during washing and / or drainage, a first one-way valve 161 is installed in the drying pipe 132 and / or the air inlet 151. The first one-way valve 161 is used for one-way communication between the drying pipe 132 and the connecting pipe 15. This effectively prevents water from entering the drying pipe 132 and the air supply component 131, ensuring the service life of the components. It also helps to ensure the dryness of the drying pipe 132 and avoids secondary contamination of the drying pipe 132.

[0069] Based on any one or more of the above embodiments, this embodiment further includes the following:

[0070] The drying pipe 132 includes a first pipe 1321 and at least one second pipe 1322. The first pipe 1321 is connected to the air supply component 131 and the drain outlet 111, and the second pipe 1322 is connected to the air supply component 131 and the bottom of the outer tub 11. The drain outlet 111 has a limited aperture, but supplying air to the outer tub 11 from the drain outlet 111 is inefficient and the drying speed is slow. In this embodiment, the first pipe 1321 is connected to the drain outlet 111 to dry the area around the drain outlet 111, and the second pipe 1322 is further connected directly to the bottom wall of the outer tub 11, so that part of the gas generated by the air supply component 131 flows through the first pipe 1321, and the other part enters the outer tub 11 along the bottom wall of the outer tub 11 through the second pipe 1322. This has a good drying effect on the stubborn area of ​​the bottom wall of the outer tub 11, improves the air intake efficiency and drying efficiency, shortens the drying time, and achieves energy saving and emission reduction.

[0071] Furthermore, the drying pipe 132 also includes a main pipe 1323 connected to the gas supply component 131. The first pipe 1321 and at least one second pipe 1322 are respectively connected to the main pipe 1323, and the main pipe 1323 is equipped with a heating element 17. In this way, the gas supply component 131 only needs to be connected to the main pipe 1323, making installation more convenient. At the same time, the heating element 17, which is located on the main pipe 1323, can heat all the gas, making it more convenient and energy-efficient.

[0072] Furthermore, a switch is provided on the main pipe 1323, which is used to open or close the main pipe 1323. Further, the switch is a second one-way valve 162, which also serves to prevent backflow of washing water.

[0073] In some embodiments, during the barrel drying process, the second one-way valve 162 remains open, while the first one-way valve 161 remains open for a preset time and then closes.

[0074] This design, on the one hand, enhances the protection of the area surrounding the drain outlet 111, preventing components such as the connecting pipe 15 and drain valve 14 from aging due to prolonged heating, thus extending their service life. On the other hand, by closing the first pipe 1321, all gas is discharged into the outer barrel 11 through the second pipe 1322. This further increases the gas flow rate in the second pipe 1322 without changing the power of the gas supply component 131, further promoting the accelerated evaporation of moisture and improving the drying efficiency of the outer barrel 11.

[0075] Based on any one or more of the above embodiments, this embodiment further includes the following:

[0076] The washing machine 10 also includes an inner tub 18, which is rotatably disposed within an outer tub 11. A gap exists between the inner tub 18 and the outer tub 11. The inner tub 18 has multiple through holes communicating with the outer tub 11. This allows gas entering the outer tub 11 to further enter the inner tub 18 through the through holes, thus drying the inner tub 18.

[0077] Furthermore, when the air supply component 131 supplies air to the outer barrel 11 through the drying pipe 132, the inner barrel 18 rotates to drive the gas to enter the inner barrel 18 through the through hole.

[0078] The rotation of the inner barrel 18 further drives the gas to flow faster, and under the action of the centrifugal force generated by the rotation of the inner barrel 18, the gas flows into the inner barrel 18 at an accelerated speed, promoting the drying of the inner barrel 18.

[0079] Furthermore, the inner tub 18 is provided with a rotatable impeller 19, and at least part of the through holes are provided on the bottom wall of the inner tub 18. The impeller 19 is provided with a plurality of airflow channels 191 that communicate with the through holes on the bottom wall of the inner tub 18.

[0080] By providing an airflow channel 191 on the impeller 19, the gas can also dry the impeller 19 and further enter the inner barrel 18 along the airflow channel 191 to dry the inner barrel 18.

[0081] Based on any one or more of the above embodiments, this embodiment further includes the following:

[0082] The cover 12 is provided with multiple vent holes. The vent holes on the cover 12 allow some gas to be discharged from the outer barrel 11 through the vent holes, preventing excessive air pressure inside the outer barrel 11 from causing danger.

[0083] Based on any one or more of the above embodiments, this embodiment further includes the following:

[0084] A temperature measuring device is provided on the cover 12.

[0085] The temperature of the cover 12 is detected by a temperature measuring device, which can then determine the dryness of the outer barrel 11, and the operation of the air supply component 131 can be controlled based on the detection results.

[0086] Based on any one or more of the above embodiments, this embodiment further includes the following:

[0087] When the air supply component 131 stops supplying air to the outer barrel 11, the lid 12 unlocks at the opening of the outer barrel 11. In this way, the lid 12 automatically unlocks after the barrel is dried, making it convenient for users to use it afterwards.

[0088] Furthermore, the outer tub 11 and / or the lid 12 are provided with a pop-up mechanism. When the lid 12 is unlocked, the pop-up mechanism pops the lid 12 open at the opening of the outer tub 11. This makes it easier for the outer tub 11 to ventilate after the lid 12 is opened.

[0089] For example, the pop-up mechanism is an electromagnetic component. One of the outer barrel 11 and the lid 12 is equipped with a magnetic component, and the other is equipped with a solenoid valve. When the solenoid valve is energized, it attracts the magnetic component, causing the outer barrel 11 and the lid 12 to lock together. When the solenoid valve is reverse-energized, it disengages the magnetic component, causing the lid 12 to pop open.

[0090] A second aspect of the present invention provides a control method for a washing machine 10, applicable to the washing machine 10 of any of the above embodiments, comprising the following steps:

[0091] In response to the barrel drying command, the control cover 12 is locked to the outer barrel 11, and the control air supply component 131 is controlled to supply air to the outer barrel 11 through the drying pipe 132.

[0092] In this invention, the gas supply component 131 drives the gas to flow along the drying pipe 132 and enter the outer tub 11 through the drain outlet 111. The gas flow carries away the water in the drain outlet 111 and the outer tub 11, thereby drying the area around the drain outlet 111 and the outer tub 11. This facilitates drying of the area inside the outer tub 11, avoiding bacterial growth and secondary contamination. Furthermore, during drying, only the gas supply component 131 needs to be activated, making the drying operation simple, efficient, and effective. The gas supply component 131 accelerates the gas flow rate and intensity, thus increasing the drying speed. Since the drying pipe 132 is connected to the drain outlet 111, this design also effectively dries the area around the drain outlet 111 and dead zones such as the bottom of the outer tub 11, resulting in a more thorough and hygienic drying of the outer tub 11.

[0093] Simultaneously, while the air supply component 131 supplies air to the outer barrel 11, the lid 12 remains locked to prevent rapid gas leakage from the machine. This allows the gas to move freely within the outer barrel 11, contacting the moisture inside and drying it. It also prevents high-humidity gas from escaping within the machine and causing damage to components due to moisture. Furthermore, it avoids repeated loosening and impacts of the lid 12 against the outer barrel 11 caused by the gas flow, thus reducing product noise.

[0094] Furthermore, while controlling the air supply component 131 to supply air to the outer barrel 11 through the drying pipe 132, it also includes controlling the rotation of the inner barrel 18 and / or the impeller 19.

[0095] The rotation of the inner barrel 18 further drives the gas to flow faster, and under the action of the centrifugal force generated by the rotation of the inner barrel 18, the gas flows into the inner barrel 18 at an accelerated speed, promoting the drying of the inner barrel 18.

[0096] Based on any one or more of the above embodiments, this embodiment further includes the following:

[0097] Before the step of controlling the air supply component 131 to supply air to the outer drum 11 through the drying pipe 132, the following steps are also included:

[0098] Get the state of cover 12;

[0099] If the cover 12 is in the locked state, the control air supply component 131 supplies air to the outer barrel 11 through the drying pipe 132; otherwise, the operation of the air supply component 131 is suspended and an alarm is issued.

[0100] Before the air supply component 131 starts working, it is important to ensure that the cover 12 is in a locked state, which helps to ensure the reliability of the product's operation.

[0101] Based on any one or more of the above embodiments, this embodiment further includes: while controlling the air supply component 131 to supply air to the outer barrel 11 through the drying pipe 132, it also includes:

[0102] The heating element 17 is controlled to heat the gas and the temperature of the cover 12 is monitored in real time.

[0103] When the detected temperature is less than or equal to the first preset temperature, the air supply component 131 is controlled to stop working, and the pop-up mechanism is controlled to pop open the cover 12.

[0104] When the detected temperature is less than or equal to the first preset temperature, the surface barrel is dry. Then, the air supply component 131 and the heating component 17 are stopped working. This can better ensure that the outer barrel 11 is thoroughly dried.

[0105] For example, the first preset temperature ranges from 35℃ to 50℃.

[0106] Furthermore, it also includes:

[0107] When the detected temperature is greater than or equal to the second preset temperature, the heating element 17 is controlled to stop working, and the air supply element 131 is controlled to continue working.

[0108] The first preset temperature is lower than the second preset temperature.

[0109] When the detected temperature is greater than or equal to the second preset temperature, it indicates that the temperature inside the wire barrel is too high and may cause danger. Therefore, the heating element 17 is controlled to stop working. In this way, the gas supply element 131 drives the relatively low temperature gas into the outer barrel 11 to cool down the outer barrel 11 and ensure the safety of the product.

[0110] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A laundry machine characterized by, The laundry machine comprises: an outer tub having a tub opening and a drain opening; a cover body lockably arranged on the outer tub to open and close the tub opening; a drying assembly comprising a gas supply member and a drying pipeline in communication with the gas supply member, the drying pipeline being in communication with the drain opening, wherein the cover body closes the tub opening when the gas supply member supplies gas to the outer tub through the drying pipeline; further comprising a drain valve, a connecting pipeline in communication with the drain valve and the drain opening, a side wall of the connecting pipeline being provided with an air inlet, the drying pipeline being in communication with the air inlet, a first one-way valve being arranged on the drying pipeline and / or the air inlet for one-way communication of the drying pipeline to the connecting pipeline; the drying pipeline comprises a first pipeline in communication with the gas supply member and the drain opening, and at least one second pipeline in communication with the gas supply member and a bottom wall of the outer tub, the drying pipeline further comprising a main pipeline in communication with the gas supply member, the first pipeline and the at least one second pipeline being in communication with the main pipeline, the main pipeline being provided with a heating member; a second one-way valve is arranged on the main pipeline to prevent backflow of washing water, the second one-way valve being kept open during the drying process of the outer tub, the first one-way valve being kept open for a preset time and then closed, and the first pipeline being closed so that gas is discharged into the outer tub through the second pipeline; when the gas supply member stops supplying gas to the outer tub, the cover body is unlocked from the tub opening of the outer tub, and the outer tub and / or the cover body is provided with a pop-open mechanism, the pop-open mechanism popping open the cover body from the tub opening of the outer tub when the cover body is unlocked.

2. A laundry washing machine according to Claim 1, characterized in that The laundry machine further comprises: an inner tub rotatably arranged in the outer tub, the inner tub being provided with a plurality of through holes in communication with the outer tub; when the gas supply member supplies gas to the outer tub through the drying pipeline, the inner tub rotates to drive gas to enter the inner tub through the through holes.

3. A laundry washing machine according to Claim 2, characterized in that The inner tub is provided with a rotatable impeller, at least part of the through holes being arranged on a bottom wall of the inner tub, and the impeller being provided with a plurality of air flow channels in communication with the through holes on the bottom wall of the inner tub.

4. The laundry machine according to any one of claims 1 to 3, wherein the cover body is provided with a plurality of air permeable holes.

5. The laundry machine according to any one of claims 1 to 3, wherein the cover body is provided with a temperature measuring device.

6. A control method of a washing machine, suitable for the washing machine according to any one of claims 1 to 5, characterized in that, The method comprises the following steps: in response to a tub drying instruction, controlling the cover body to be locked to the outer tub, and controlling the gas supply member to supply gas to the outer tub through the drying pipeline.

7. The control method of the washing machine according to claim 6, characterized in that, Before the step of controlling the gas supply member to supply gas to the outer tub through the drying pipeline, the method further comprises: obtaining a state of the cover body; if the cover body is in a locked state, performing the step of controlling the gas supply member to supply gas to the outer tub through the drying pipeline, otherwise, pausing the operation of the gas supply member and issuing an alarm.

8. The control method of the laundry machine according to claim 6 or 7, wherein the outer tub is rotatably provided with an inner tub, and the inner tub is provided with a rotatable impeller; when the gas supply member is controlled to supply gas to the outer tub through the drying pipeline, the inner tub and / or the impeller are further controlled to rotate.

9. The control method of the laundry machine according to claim 8, wherein Control the heating member to heat the gas and detect the temperature of the cover in real time while controlling the gas supply member to supply the gas to the outer barrel through the drying pipeline; When the detected temperature is less than or equal to a first preset temperature, control the gas supply member to stop working, and control the ejecting mechanism to eject the cover.

10. The control method of a washing machine according to claim 9, characterized in that, Further comprising: When the detected temperature is greater than or equal to a second preset temperature, control the heating member to stop working, and control the gas supply member to continue working; The first preset temperature is less than the second preset temperature.

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