Laundry appliance

Abstract

The present application relates to laundry technology field, specifically provide a kind of laundry equipment, to solve the structure of existing laundry equipment when realizing external air to outer tube is dried, it is not conducive to the simplification design of product structure and drying effect is limited, drying efficiency is extremely low Problem.For this purpose, the laundry equipment of the present application includes barrel assembly, valve assembly, fan and air pipe, air pipe directly connects barrel assembly with outside, valve assembly includes barrier mechanism and valve housing with air inlet chamber and air outlet chamber, air inlet chamber and air outlet chamber are independently arranged, air inlet chamber is connected with air inlet pipeline, air outlet chamber is connected with air outlet pipeline, fan is arranged on air inlet pipeline, barrier mechanism is arranged to simultaneously block air inlet pipeline and air outlet pipeline.The present application can increase the discharge speed of moisture, improve drying effect and drying efficiency, conducive to the overall structure of product, reduce the complexity of product design.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laundry, and particularly provides a laundry equipment. BACKGROUND

[0002] The laundry equipment is a laundry processing equipment capable of washing, rinsing, dewatering and / or drying clothes, and some laundry equipment also adds air washing, sterilization, degerming, fragrance adding and the like functions. There are many types of laundry equipment, such as the most common drum washing machine, pulsator washing machine and washing-drying integrated machine.

[0003] Taking the drum washing machine as an example, the existing drum washing machine comprises an outer drum and an inner drum. During washing, a certain amount of water is first injected into the outer drum, and then the inner drum drives the clothes to overturn, so as to realize washing of the clothes. The principle design is to simulate the principle of a hammer hitting clothes. After washing the clothes, the outer drum and the window cushion connected with the outer drum are both wet, that is, the inner wall thereof has residual water. Long-term use is easy to breed bacteria. If only the door glass is opened to naturally dry the outer drum and the window cushion, the effect is very limited. Moreover, the window cushion contains crevice parts, which is very unfavorable to the emission of water vapor. When the user uses the drum washing machine again, the bacteria and dirt in the inner wall of the outer drum and the window cushion are easy to cause secondary pollution to the clothes, seriously affecting the washing effect and making the user experience poor. The washing-drying integrated machine at least increases a drying system on the basis of the traditional drum washing machine, so that the drum washing machine has a drying function. Some models can also realize air washing. However, although the drying system can dry the residual water in the outer drum and the window cushion after washing the clothes by means of drying, the drying system of the washing-drying integrated machine adopts an internal circulation mode. This makes the water vapor still circulate between the drying air duct and the outer drum. Moreover, the dehumidification of the washing-drying integrated machine mainly relies on the dehumidification device of the drying system. This makes it necessary to keep the drying system running to further remove the residual water in the outer drum and the window cushion after the drying program is completed. This will seriously increase the energy consumption of the washing machine and is very unfavorable to energy saving.

[0004] In the patent document with the patent number 201922216894.9, a drum washing machine is disclosed, which comprises an air inlet pipeline and an air outlet pipeline with a fan. The air inlet pipeline and the air outlet pipeline are both communicated with the outer drum. The flowing air can enter the outer drum and dry the inner surface of the outer drum and the outer surface of the inner drum. The flowing air is then discharged from the air outlet pipeline of the machine body of the drum washing machine. That is, the outer drum is dried by external air, so as to avoid breeding of dirt and bacteria. However, this drum washing machine cannot guarantee that the external dirt does not enter the drum washing machine, and still has certain safety hazards.

[0005] A ventilation structure and a washing machine are disclosed in patent No. 201810106076.0. The ventilation structure includes a ventilation opening and a rotating body. The rotating body is arranged at the ventilation opening and is provided with a first connecting hole penetrating in the radial direction. When the rotating body rotates, the first connecting hole can be in communication with the ventilation opening or the rotating body blocks the ventilation opening, so that the first connecting hole is selectively in communication with the ventilation opening, realizing the purpose of opening or closing the ventilation opening by rotating the rotating body. The ventilation structure can be arranged on the front panel of the washing machine shell, or arranged in the rear ventilation opening at the same time. However, when the ventilation structure is arranged only on the front panel, external dirt is easy to enter the drum washing machine from the rear ventilation opening. If the ventilation structure is also arranged in the rear ventilation opening, the drum washing machine and the outside can be completely blocked only when the two ventilation structures are closed, which is very unfavorable for the arrangement of product structure, and seriously increases the complexity of product design.

[0006] In addition to the above-mentioned problems, the above two patent documents also have the problems of slow moisture discharge speed, limited air drying effect and extremely low air drying efficiency.

[0007] Therefore, there is a need for a new washing equipment to solve the above problems in the art. SUMMARY

[0008] The present application aims to solve the above technical problems, that is, to solve the problems of complex structure, unfavorable product structure simplification design and limited air drying effect and extremely low air drying efficiency of the existing washing equipment when realizing air drying of the outer cylinder by external air.

[0009] The present application provides a washing equipment, which comprises a cylinder assembly, a valve assembly, a fan and a ventilation pipeline. The ventilation pipeline directly communicates the cylinder assembly with the outside. The valve assembly comprises a blocking mechanism and a valve shell with an air inlet cavity and an air outlet cavity. The air inlet cavity and the air outlet cavity are independently arranged. An air inlet pipeline for communicating the outside with the cylinder assembly is connected to the air inlet cavity. An air outlet pipeline for communicating the outside with the cylinder assembly is connected to the air outlet cavity. The fan is arranged on the air inlet pipeline. The blocking mechanism is arranged to simultaneously block the air inlet pipeline and the air outlet pipeline.

[0010] In the preferred technical scheme of the above washing equipment, the blocking mechanism comprises a driving motor, a first blocking piece and a second blocking piece. The output shaft of the driving motor is connected to the first blocking piece and the second blocking piece at the same time. The first blocking piece is arranged in the air inlet cavity, and the second blocking piece is arranged in the air outlet cavity. The driving motor can drive the first blocking piece and the second blocking piece to move at the same time to block the air inlet cavity and the air outlet cavity.

[0011] In the washing machine, the driving motor is connected with the transmission shaft, the first barrier is a first barrier plate, the second barrier is a second barrier plate, the first barrier plate and the second barrier plate are arranged on the transmission shaft, and the driving motor can drive the transmission shaft to rotate so as to simultaneously rotate the first barrier plate and the second barrier plate.

[0012] In the washing machine, the transmission shaft sequentially passes through the air outlet cavity and the air inlet cavity from outside of one side of the valve housing, and the transmission shaft is rotatably arranged on a partition plate separating the air outlet cavity and the air inlet cavity.

[0013] In the washing machine, the air inlet pipeline comprises a first air inlet pipe and a second air inlet pipe, the fan is arranged on the first air inlet pipe, the first air inlet pipe is connected between the air inlet opening of the air inlet cavity and the outside, and the second air inlet pipe is connected between the air outlet opening of the air inlet cavity and the drum assembly; the air outlet pipeline comprises a first air outlet pipe and a second air outlet pipe, the first air outlet pipe is connected between the drum assembly and the air inlet opening of the air outlet cavity, and the second air outlet pipe is connected between the air outlet opening of the air outlet cavity and the outside.

[0014] In the washing machine, a first opening is arranged on a front panel of a cabinet of the washing machine and is connected with the outside, a second opening is arranged on a rear panel of the cabinet and is connected with the outside, the second air outlet pipe is connected with the first opening, and the air permeation pipeline is connected with the second opening.

[0015] In the washing machine, air outlet detection devices are arranged at the first opening and / or the second opening.

[0016] In the washing machine, a foam overflow prevention structure is arranged in the air permeation pipeline.

[0017] In the washing machine, the drum assembly comprises an outer drum and a window pad connected with each other, the air inlet pipeline is connected with the window pad, and the air outlet pipeline and the air permeation pipeline are connected with the outer drum.

[0018] In the washing machine, the air outlet pipeline is connected with a front portion or a middle portion of the outer drum, and the air permeation pipeline is connected with a rear portion of the outer drum.

[0019] In the case of adopting the technical scheme, after the laundry equipment ends the laundry program, external air can be introduced into the air inlet pipeline by starting the fan, and then into the drum assembly to realize air drying inside the drum assembly, and finally discharged from the air outlet pipeline and the air permeable pipeline, thereby increasing the moisture discharge speed, improving the air drying effect and efficiency, avoiding bacteria breeding inside the drum assembly due to residual water, and in addition, the blocking mechanism can simultaneously block and cut off the air inlet pipeline and the air outlet pipeline, which is simple in structure, beneficial to the overall structure arrangement of the product, and reduces the complexity of product design.

[0020] Further, the first blocking piece can be driven by the driving motor to block the air inlet cavity, and the second blocking piece can be driven by the driving motor to block the air outlet cavity, thereby realizing simultaneous blocking of the air inlet pipeline and the air outlet pipeline, i.e., the driving motor is used as a driving source to realize simultaneous blocking of the air inlet pipeline and the air outlet pipeline, which is simple in overall structure, beneficial to the overall structure arrangement of the product, and reduces the complexity of product design.

[0021] Further, the driving motor can drive the transmission shaft to rotate, thereby realizing rotation of the first blocking plate and the second blocking plate, and thus realizing simultaneous blocking of the air inlet cavity and the air outlet cavity. By such a configuration, not only can simultaneous blocking of the air inlet pipeline and the air outlet pipeline be realized, but also the rotation driving mode can minimize the space required by the valve assembly, which is more conducive to the layout design of the overall space structure of the laundry equipment, and is simple in structure and easy to manufacture.

[0022] Further, the driving motor is arranged outside the valve housing, so that the transmission shaft extends into the valve housing to drive the first blocking plate and the second blocking plate to rotate. By such a configuration, a structural basis is provided for installation of the structure of the driving motor, and the driving motor arranged outside the valve housing does not affect the flow of air, and the driving motor also has no safety hazard of being covered by humid air, thereby further improving the safety of the laundry equipment.

[0023] Further, the outlet of the air permeable pipeline and the outlet of the air outlet pipeline are arranged on the rear panel and the front panel of the box body, respectively. By such a configuration, the pipeline structure arrangement is more conducive, the pipeline is prevented from being too concentrated to affect the arrangement inside the laundry equipment, and the size of the box body of the laundry equipment is prevented from being too large.

[0024] Further, the air outlet detection device can detect whether the air outlet pipeline and / or the air permeable pipeline is air outlet, so as to determine whether the air outlet of the laundry equipment is normal, thereby facilitating the user to know the air outlet state, being beneficial to control of the laundry equipment, and further improving the user experience.

[0025] Further, the anti-foam overflow structure can prevent the foam from overflowing out of the air vent pipe and the washing machine, avoid the foam overflowing out of the washing machine when the clothes are washed, and cause the water to be stored around the washing machine, affect the environment in the user's home, and further improve the user experience.

[0026] Further, the air inlet pipe is in communication with the window cushion, the air outlet pipe and the air vent pipe are in communication with the outer tub, so that the external air can enter from the window cushion, dry the window cushion first, then dry the outer tub, and finally the humid air is discharged through the air outlet pipe and the air vent pipe, so that the outer tub and the window cushion can be dried at the same time, avoid secondary pollution when the user washes the clothes again, and affect the user experience.

[0027] Further, the air outlet pipe is in communication with the front or middle part of the outer tub, and the air vent pipe is in communication with the rear part of the outer tub, which not only increases the discharge speed of the moisture, but also enables the external air to dry the outer tub without dead angle, further improves the drying effect, and improves the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0028] The preferred embodiments of the present application will be described below with reference to the accompanying drawings and in conjunction with a drum washing machine, and the drawings are as follows:

[0029] Figure 1 is a structural schematic diagram of the drum washing machine of the present application;

[0030] Figure 2 is a structural schematic diagram of the valve assembly and the fan of the drum washing machine of the present application Figure 1 ;

[0031] Figure 3 is a structural schematic diagram of the valve assembly and the fan of the drum washing machine of the present application Figure 2 ;

[0032] Figure 4 is a structural schematic diagram of the anti-foam overflow structure embodiment of the drum washing machine of the present application. DETAILED DESCRIPTION

[0033] First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. For example, although the present application is described in conjunction with a drum washing machine, the technical principles of the present application are obviously also applicable to a washer-dryer or a complex clothes processing device, and the adjustment or change of these application objects does not constitute a limitation on the present application, and should be limited within the protection scope of the present application.

[0034] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship of the terms "middle", "upper", "lower", "inner", "outer" and the like are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0035] In addition, it should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "set", "mount", "connect", "communicate" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] Based on the problems of the existing drum washing machine pointed out in the background art that the structure is complex when the external air is used to dry the outer drum, which is not conducive to the simplification design of the product structure and the limited drying effect and the extremely low drying efficiency, the present application provides a drum washing machine, which aims to increase the moisture discharge speed, improve the drying effect and drying efficiency, facilitate the overall structure arrangement of the product, and reduce the complexity of product design.

[0037] Specifically, as shown in Figure 1 The drum washing machine of the present application comprises a box body 1 and a drum assembly arranged in the box body 1, the drum assembly comprising an inner drum 2, an outer drum 3 and a window pad 4, the inner drum 2 being rotatably arranged in the outer drum 3, the window pad 4 connecting an opening of the outer drum 3 with a clothes feeding port of the box body 1, the inner drum 2 being directly driven to rotate by a direct drive motor, and also being driven to rotate by a motor driving a belt. The outer drum 3 is used to contain washing water, the inner drum 2 is used to make clothes tumble, and the window pad 4 is used to ensure the sealing between the outer drum 3 and the box body 1.

[0038] It should be noted that the conventional washing program of the drum washing machine includes a washing process, a rinsing process, a dehydration process and a drainage process, in some drum washing machines, the washing program can omit the dehydration process, such adjustment or change of the conventional washing program of the drum washing machine does not constitute a limitation on the present application, and should be limited within the protection scope of the present application. Among them, a large amount of foam will be generated due to the presence of detergent / washing powder in the washing process, and there will be residual water on the inner surface of the outer drum 3 and the inner surface of the window pad 4 after the drainage process is completed.

[0039] As shown in Figures 1 to 3As shown, the drum washing machine of the present application further comprises an air-permeable pipeline 5, a valve assembly and a fan 6. One end of the air-permeable pipeline 5 is in communication with the drum assembly, and the other end is in communication with the outside. The valve assembly comprises a blocking mechanism and a valve housing 7 having an air inlet cavity 71 and an air outlet cavity 72. The air inlet cavity 71 and the air outlet cavity 72 are independently arranged. The air inlet cavity 71 is connected with an air inlet pipeline 8 which is in communication with the drum assembly and the outside. The air outlet cavity 72 is connected with an air outlet pipeline 9 which is in communication with the drum assembly and the outside. The fan 6 is arranged on the air inlet pipeline 8. The blocking mechanism is arranged to simultaneously block the air inlet pipeline 8 and the air outlet pipeline 9. The air inlet cavity 71 has an air inlet port 71a and an air outlet port 71b. The air outlet cavity 72 also has an air inlet port 72a and an air outlet port 72b. The air inlet pipeline 8 which is in communication with the drum assembly and the outside on the air inlet cavity 71 can be directly connected with the air inlet port 71a of the air inlet cavity 71, and then the air outlet port 71b of the air inlet cavity 71 is connected with the drum assembly through the air inlet pipeline 8, or the air inlet pipeline 8 has two sections, one section is connected with the air inlet port 71a of the air inlet cavity 71 and the other section is connected with the air outlet port 71b of the air inlet cavity 71 and the drum assembly. Similarly, the air outlet pipeline 9 which is in communication with the drum assembly and the outside on the air outlet cavity 72 can be directly connected with the air outlet port 72b of the air outlet cavity 72, and then the drum assembly is connected with the air inlet port 72a of the air outlet cavity 72 through the air outlet pipeline 9, or the air outlet pipeline 9 has two sections, one section is connected with the drum assembly and the air inlet port 72a of the air outlet cavity 72 and the other section is connected with the air outlet port 72b of the air outlet cavity 72 and the outside. Preferably, the air inlet pipeline 8 is connected with the window cushion 4, and the air outlet pipeline 9 and the air-permeable pipeline 5 are both connected with the outer drum 3. Those skilled in the art can flexibly arrange the connection position of the air inlet pipeline 8 and the window cushion 4 and the connection position of the air outlet pipeline 9 and the air-permeable pipeline 5 and the outer drum 3 in actual application. Preferably, the air inlet pipeline 8 is connected with the top of the window cushion 4, and the air outlet pipeline 9 and the air-permeable pipeline 5 are both connected with the top of the outer drum 3, so as to avoid water entering the pipeline when the drum washing machine is washing clothes. More preferably, the air outlet pipeline 9 is connected with the front or middle part of the outer drum 3, and the air-permeable pipeline 5 is connected with the rear part of the outer drum 3. It should be noted that the front, middle and rear parts of the outer drum 3 can be divided according to the axial length of the outer drum 3, for example, the front 1 / 3 part of the outer drum 3 is referred to as the front part of the outer drum 3, the middle 1 / 3 part is referred to as the middle part of the outer drum 3, and the rear 1 / 3 part is referred to as the rear part of the outer drum 3. In one possible case, continuing to refer to Figure 1The air inlet pipeline 8 comprises a first air inlet pipeline and a second air inlet pipeline. The first air inlet pipeline connects the air inlet 71a of the air inlet cavity 71 with the outside. The second air inlet pipeline connects the air outlet 71b of the air inlet cavity 71 with the drum assembly. The air outlet pipeline 9 comprises a first air outlet pipeline and a second air outlet pipeline. The first air outlet pipeline connects the drum assembly with the air inlet 72a of the air outlet cavity 72. The second air outlet pipeline connects the air outlet 72b of the air outlet cavity 72 with the outside. After the completion of the washing program, the controller of the drum washing machine can send a signal to the air blower 6 to start the air blower 6. The rotation of the air blower 6 causes the air to enter the drum assembly in sequence through the first air inlet pipeline, the air inlet cavity 71 and the second air inlet pipeline, thereby achieving the air drying of the drum assembly. Then, part of the moist air is discharged in sequence through the first air outlet pipeline, the air outlet cavity 72 and the second air outlet pipeline. The other part of the moist air is discharged through the air permeable pipeline 5, so that the moist air is discharged to the outside.

[0040] In the above embodiment, the air permeable pipeline 5 is preferably provided with a foam overflow prevention structure. It should be noted that the foam overflow prevention structure needs to allow the air flow when air drying the drum assembly. In one possible case, the foam overflow prevention structure can be a combination of a rotatable pipe segment, a one-way valve and a rotating motor. The rotatable pipe segment can be a part of the air permeable pipeline 5, or a pipe segment separately connected to the inlet or outlet of the air permeable pipeline 5. The rotatable pipe segment is connected to the output shaft of the rotating motor and is arranged to be rotatable by the rotating motor. That is, the two ends of the rotatable pipe segment have pipe openings, which are a first pipe opening and a second pipe opening. The rotatable pipe segment is provided with a one-way valve. When the rotating motor drives the rotatable pipe segment to rotate, the first pipe opening and the second pipe opening are connected to the air permeable pipeline 5 in a positive connection or a reverse connection. For example, when the rotatable pipe segment is connected to the air permeable pipeline 5 in a positive connection, the first pipe opening is a windward opening and the second pipe opening is a leeward opening. The one-way valve allows the air to flow from the windward opening to the leeward opening. When the rotatable pipe segment is connected to the air permeable pipeline 5 in a reverse connection, the second pipe opening is a windward opening and the first pipe opening is a leeward opening. At this time, the one-way valve is reversed to prevent the air from flowing from the windward opening to the leeward opening. Through such a structure, when the drum washing machine performs a washing program, such as washing and rinsing, the rotatable pipe segment can be connected to the air permeable pipeline 5 in a reverse connection, thereby preventing the overflow of foam. When the drum washing machine performs a ventilation program, the rotatable pipe segment can be connected to the air permeable pipeline 5 in a positive connection, thereby allowing the air to be discharged to achieve the dehumidification of the drum assembly. In addition, when the air outlet pipeline 9 is used to dehumidify the drum assembly, the rotatable pipe segment can also be connected to the air permeable pipeline 5 in a reverse connection, thereby preventing the air in the air permeable pipeline 5 from flowing out. Figure 4As shown, the anti-foam overflow structure comprises a chamber structure 20, a door body 30, a first permanent magnet 40 and a second permanent magnet 50. The chamber structure 20 is arranged in the air passage 5 and a notch 20a is formed on the side of the chamber structure 20 facing the door body 30. The door body 30 is rotatably arranged in the air passage 5 and the extended end of the door body 30 can cooperate with the notch 20a to close / open the air passage 5. The first permanent magnet 40 is arranged on the door body 30 and the second permanent magnet 50 is arranged on the upstream side of the door body 30 along the airflow direction of the air passage 5. The magnetic properties of the first permanent magnet 40 and the second permanent magnet 50 are different. When the fan 6 rotates within a preset speed range, the air flow generated by the fan 6 can overcome the attraction between the first permanent magnet 40 and the second permanent magnet 50 to keep the extended end of the door body 30 between the upwind end 20b and the downwind end 20c of the notch 20a, so that part of the air in the outer drum 3 is discharged to the outside through the air passage 5. When the drum washing machine performs a washing program and foam enters the air passage 5, the door body 30 overcomes the attraction between the first permanent magnet 40 and the second permanent magnet 50 under the push of the foam and stays at the downwind end 20c of the notch 20a to close the air passage 5, thereby preventing foam overflow. The door body 30 can be connected to the inner wall of the air passage 5 or the mounting structure of the air passage 5 through a rotating shaft, and those skilled in the art can flexibly arrange the way the door body 30 is rotatably arranged in the air passage 5 in actual application. In the direction of the incoming air flow, the second permanent magnet 50 is located on the upstream side of the door body 30, so that when the fan 6 stops, the attraction of the second permanent magnet 50 to the first permanent magnet 40 keeps the door body 30 in the closed position (i.e. the door body 30 is at the upwind end 20b of the notch 20a), thereby closing the air passage 5 and forming a barrier to the outside world to prevent dust from the outside world from entering. When the fan 6 rotates within a preset speed range, the attraction of the second permanent magnet 50 to the first permanent magnet 40 can be overcome to make the door body 30 rotate and the extended end of the door body 30 stay between the upwind end 20b and the downwind end 20c of the notch 20a to make the air passage 5 conductive, so that part of the air in the outer drum 3 can be discharged to the outside through the air passage 5. When the drum washing machine performs a washing program, the force generated by the foam is very large, which can push the door body 30 to the downwind end 20c of the notch 20a, thereby ensuring that the door body 30 closes the air passage 5 and prevents foam overflow. It should be noted that the preset speed range can be flexibly set according to the attraction between the first permanent magnet 40 and the second permanent magnet 50, and the speed of the fan 6 can control the wind power, thereby controlling the rotation angle of the door body 30 (i.e. the opening angle) to control the air flow.Preferably, the preset rotating speed range is a range between two values (i.e. the preset rotating speed range has a lower limit value and an upper limit value), and the preset rotating speed range can be 500-800 rpm. When the rotating speed of the fan 6 is lower than 500 rpm, the air force of the fan 6 cannot open the door body 30. When the rotating speed of the fan 6 reaches and exceeds 500 rpm, the air force of the fan 6 can overcome the attraction force between the first permanent magnet 40 and the second permanent magnet 50 to open the door body 30 and keep the door body 30 between the upwind end 20b and the downwind end 20c of the gap 20a. When the rotating speed of the fan 6 exceeds 800 rpm, the air force can make the door body 30 top against the downwind end 20c of the gap 20a. Therefore, the range is set to ensure that the door body 30 can guide the air passage 5 to be conducted. Of course, the preset rotating speed range described above is only exemplary, and the preset rotating speed range can also be other ranges, and those skilled in the art can flexibly set it in actual application in combination with specific application conditions. In other examples, the anti-foam overflow structure can also adopt other structures, and those skilled in the art can flexibly set it.

[0041] In the above, the fan 6 is preferably arranged on the first air inlet pipe, so that the fan 6 can immediately suck air from the first air inlet pipe after starting, and the foam generated during the washing process of the drum washing machine is also blocked in the air inlet cavity 71 and does not affect the operation of the fan 6. The front panel of the cabinet 1 is provided with a first opening communicating with the outside, the rear panel of the cabinet 1 is provided with a second opening communicating with the outside, the second air outlet pipe communicates with the first opening, and the air passage 5 communicates with the second opening. Alternatively, the second air outlet pipe can communicate with the second opening, and the air passage 5 can communicate with the first opening. Furthermore, preferably, the rear panel of the cabinet 1 is further provided with a third opening, the first air inlet pipe communicates with the third opening, and an air filter device can be arranged at the position of the third opening. The air filter device can block dust from entering the fan 6, the outer drum 3 and the window cushion 4, and can adopt a structure of multiple equivalent filter screens, a combination structure of coarse filter screens, medium filter screens and high filter screens, or other filter structures, and those skilled in the art can flexibly set it in actual application.

[0042] Further, the first opening and / or the second opening is provided with an air outlet detection device, wherein the air outlet detection device can be a flow sensor, and can also be other devices capable of detecting air outlet, through the air outlet detection device, it can be determined whether the drum washing machine executes the ventilation program normally, and preferably, the first opening and the second opening are respectively provided with air outlet detection devices, when one air outlet detection device fails, the other air outlet detection device can still be used, so as to ensure that it can always be detected. More preferably, the first opening and the second opening are respectively provided with humidity sensors, for example, the first opening is provided with a first humidity sensor, and the second opening is provided with a second humidity sensor, the first humidity sensor and the second humidity sensor can respectively detect the humidity of the air outlet of the air outlet pipeline 9 and the humidity of the air outlet of the ventilation pipeline 5, when the humidity of the two is basically consistent or the difference value is within the set range or is less than the set humidity value, it is indicated that the ventilation pipeline 5 and the air outlet pipeline 9 are normal air outlet, of course, an environmental humidity sensor in communication with the controller of the drum washing machine (such as wifi, Bluetooth communication, etc.) can also be arranged in the room, by comparing the environmental humidity detected by the environmental humidity sensor with the humidity detected by the first humidity sensor or the second humidity sensor, if the difference value between the humidity detected by the environmental humidity sensor and the humidity detected by the first humidity sensor or the second humidity sensor is less than the preset humidity value (the preset humidity value can be taken as a relative humidity value 5%), it is indicated that the air outlet humidity is consistent or close to the environmental humidity, and the drum washing machine can be stopped to execute the ventilation program.

[0043] Preferably, as Figure 2 and 3As shown, the blocking mechanism comprises a driving motor 10, a first blocking piece 11 and a second blocking piece 12, the output shaft of the driving motor 10 is connected with the first blocking piece 11 and the second blocking piece 12 at the same time, the first blocking piece 11 is arranged in the air inlet cavity 71, the second blocking piece 12 is arranged in the air outlet cavity 72, the driving motor 10 can drive the first blocking piece 11 and the second blocking piece 12 to move at the same time to block the air inlet cavity 71 and the air outlet cavity 72. The driving motor 10 can be a rotary motor which finally outputs rotary power, or can be a linear motor which finally outputs linear driving force. For example, in a preferred case, the driving motor 10 is connected with a transmission shaft, the first blocking piece 11 is a first blocking plate, the second blocking piece 12 is a second blocking plate, the first blocking plate and the second blocking plate are arranged on the transmission shaft, and the driving motor 10 can drive the transmission shaft to rotate to make the first blocking plate and the second blocking plate rotate at the same time. That is, the driving motor 10 is a rotary motor, and the driving motor 10 can drive the transmission shaft to rotate, the transmission shaft drives the first blocking plate and the second blocking plate to rotate at the same time, the air inlet 71a and the air outlet 71b of the air inlet cavity 71 can be respectively located on opposite sides of the air inlet cavity 71, or can be respectively located on adjacent sides of the air inlet cavity 71, and similarly, the air inlet 72a and the air outlet 72b of the air outlet cavity 72 can be respectively located on opposite sides of the air outlet cavity 72, or can be respectively located on adjacent sides of the air outlet cavity 72. Among them, according to the respective arrangement positions of the air inlets and outlets of the air inlet cavity 71 and the air outlet cavity 72, the blocking modes of the first blocking plate and the second blocking plate can be flexibly set. In a preferred case, as shown in Figure 2 and 3 As shown, the air outlet 71b of the air inlet cavity 71 and the air inlet 72a of the air outlet cavity 72 are arranged on the same side of the valve shell 7, that is, the air outlet 71b of the air inlet cavity 71 and the air inlet 72a of the air outlet cavity 72 are located on the same side, the driving motor 10 drives the transmission shaft to rotate so that the first blocking plate can cover the air outlet 71b of the air inlet cavity 71 to realize the blocking of the air inlet pipeline 8, and at the same time, the second blocking plate can cover the air inlet 72a of the air outlet cavity 72 to realize the blocking of the air outlet pipeline 9, and since the coverings are respectively the air outlet 71b of the air inlet cavity 71 and the air inlet 72a of the air outlet cavity 72, even if foam is generated during the washing process of the drum washing machine, it will not enter the air inlet cavity 71 and the air outlet cavity 72, and further preferably, the side of the first blocking plate facing the air outlet 71b of the air inlet cavity 71 and the side of the second blocking plate facing the air inlet 72a of the air outlet cavity 72 are both provided with sealing pads, so that when the first blocking plate covers the air outlet 71b of the air inlet cavity 71, sealing can be realized, and when the second blocking plate covers the air inlet 72a of the air outlet cavity 72, sealing can also be realized. In other examples, the sealing pad on the first blocking plate can be replaced by a sealing ring which can correspond to the shape of the air outlet 71b of the air inlet cavity 71, and the sealing pad on the second blocking plate can be replaced by a sealing ring which can correspond to the shape of the air inlet 72a of the air outlet cavity 72.

[0044] Preferably, such as Figure 2 As shown, a drive shaft passes sequentially through the air outlet chamber 72 and the air inlet chamber 71 from one side of the valve housing 7. The drive shaft is rotatably mounted on a partition plate that separates the air inlet chamber 71 and the air outlet chamber 72. In one possible scenario, a first through hole is formed on the side of the valve housing 7 that forms the air outlet chamber 72, and a second through hole is formed on the partition plate. The drive shaft passes sequentially through the first and second through holes. The portion of the drive shaft located between the first and second through holes (i.e., the portion located inside the air outlet chamber 72) is connected to a second partition plate, and the portion of the drive shaft exiting the second through hole (i.e., the portion located in the air inlet chamber 71) is connected to the first partition plate. Alternatively, the drive shaft can be connected to both the edge of the first and second partition plates, so that the rotation of the drive shaft achieves synchronous rotation of the first and second partition plates. Additionally, a third through hole can be provided on the opposite side of the valve housing 7 where the first through hole is located. The protruding end of the drive shaft can be located within the third through hole. This arrangement allows the drive shaft to be supported by the first, second, and third through holes, improving the stability of the support. The drive motor 10, located on the outside of the valve housing 7, can be connected to the casing 1 of the drum washing machine via a mounting bracket, or the drive motor 10 can be directly welded to the casing 1 of the drum washing machine. In other examples, the drive shaft can also pass through the air inlet chamber 71 and the air outlet chamber 72 sequentially from one side of the valve housing 7.

[0045] Alternatively, the drive motor 10 is a linear motor, the first blocking member 11 is a first blocking plate, and the second blocking member 12 is a second blocking plate. A first slot communicating with the air inlet chamber 71 and a second slot communicating with the air outlet chamber 72 are formed on the same side of the valve housing 7. The first blocking plate is inserted into the first slot, and the second blocking plate is inserted into the second slot. The linear motor can drive the first and second blocking plates to move synchronously in a linear fashion. When it is necessary to block the air inlet chamber 71 and the air outlet chamber 72, the linear motor drives the first blocking plate to insert into the air inlet chamber 71 from the first slot, thereby blocking the air inlet 71a and air outlet 71b of the air inlet chamber 71 from each other. Simultaneously, it drives the second blocking plate to insert into the air outlet chamber 72 from the second slot, thereby blocking the air inlet 72a and air outlet 72b of the air outlet chamber 72 from each other. In the above, the linear motor can also be replaced by a hydraulic cylinder, a pneumatic cylinder, or other similar structure.

[0046] In a preferred case, a third humidity sensor is arranged on the outer cylinder 3, and a detection end of the third humidity sensor is located in the outer cylinder 3 to detect the humidity in the outer cylinder 3. After the drum washing machine finishes washing clothes, the third humidity sensor detects the humidity in the outer cylinder 3. When the humidity is greater than a set humidity threshold (for example, relative humidity 100%), it indicates that the outer cylinder 3 is very humid. The controller of the drum washing machine can control the drum washing machine to send a prompt to start fresh air or automatically start the fresh air function to dry the cylinder assembly by external air. The prompt to start fresh air can be a bee sound prompt, or the drum washing machine communicates with the user's mobile terminal (such as a mobile phone, a tablet computer, a smart bracelet, etc.) to send a prompt message to the user's mobile terminal. The user can query the prompt message in the APP. Alternatively, the third humidity sensor can also be arranged on the window cushion 4, and a detection end of the third humidity sensor is located in the window cushion 4 to detect the humidity in the window cushion 4. The third humidity sensor can also be replaced by an odor sensor. The odor sensor can detect the odor in the cylinder assembly. The controller can determine whether the odor is an odor according to the detected odor. When the odor is an odor, the controller of the drum washing machine can control the drum washing machine to send a prompt to start fresh air or automatically start the fresh air function.

[0047] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without departing from the principles of the present application. The technical solutions after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A laundry appliance, characterized in that, The laundry equipment comprises a drum assembly, a valve assembly, a fan and a ventilation pipeline, the ventilation pipeline directly connects the drum assembly with the outside, the valve assembly comprises a blocking mechanism and a valve housing with an air inlet cavity and an air outlet cavity, the air inlet cavity and the air outlet cavity are independently arranged, the air inlet cavity is connected with an air inlet pipeline for connecting the outside with the drum assembly, the air outlet cavity is connected with an air outlet pipeline for connecting the outside with the drum assembly, the fan is arranged on the air inlet pipeline, and the blocking mechanism is arranged to simultaneously block the air inlet pipeline and the air outlet pipeline. The ventilation pipeline is provided with a foam overflow prevention structure, the foam overflow prevention structure comprises a chamber structure, a door body, a first permanent magnet and a second permanent magnet. The chamber structure is arranged in the ventilation pipeline, and a notch is formed on one side of the chamber structure facing the door body. The door body is rotationally arranged in the ventilation pipeline, and the extended end of the door body can be matched with the notch to close / open the ventilation pipeline, the first permanent magnet is arranged on the door body, the second permanent magnet is arranged on the upstream side of the door body along the air flow direction of the ventilation pipeline, and the first permanent magnet and the second permanent magnet have different magnetic properties. When the fan stops, the attraction of the second permanent magnet to the first permanent magnet makes the extended end of the door body be located at the upwind end of the notch, so as to keep the door body in the closed state, thereby closing the ventilation pipeline. When the fan rotates within a predetermined speed range, the air flow generated by the fan can keep the extended end of the door body between the upwind end and the downwind end of the notch, so that the laundry equipment discharges air to the outside through the ventilation pipeline. When the laundry equipment performs a washing program and foam enters the ventilation pipeline, the door body can keep its extended end at the downwind end of the notch under the pushing of the foam, so as to close the ventilation pipeline and prevent foam overflow.

2. Laundry equipment according to claim 1, characterized in that, The blocking mechanism comprises a driving motor, a first blocking piece and a second blocking piece, the output shaft of the driving motor is connected with the first blocking piece and the second blocking piece at the same time, the first blocking piece is arranged in the air inlet cavity, the second blocking piece is arranged in the air outlet cavity, and the driving motor can drive the first blocking piece and the second blocking piece to move at the same time to block the air inlet cavity and the air outlet cavity.

3. Laundry equipment according to claim 2, characterized in that, The driving motor is connected with a transmission shaft, the first blocking piece is a first blocking plate, the second blocking piece is a second blocking plate, the first blocking plate and the second blocking plate are arranged on the transmission shaft, and the driving motor can drive the transmission shaft to rotate to make the first blocking plate and the second blocking plate rotate at the same time.

4. Laundry equipment according to claim 3, characterized in that, The transmission shaft sequentially passes through the air outlet cavity and the air inlet cavity from the outside of one side of the valve housing, and the transmission shaft is rotationally arranged on a partition plate separating the air inlet cavity and the air outlet cavity.

5. Laundry equipment according to claim 1, characterized in that, The air inlet pipeline comprises a first air inlet pipe and a second air inlet pipe, the fan is arranged on the first air inlet pipe, the first air inlet pipe communicates an air inlet of the air inlet cavity with the outside, and the second air inlet pipe communicates an air outlet of the air inlet cavity with the cylinder assembly.

6. Laundry equipment according to claim 5, characterized in that, The front panel of the cabinet of the laundry equipment is provided with a first opening in communication with the outside, the rear panel of the cabinet of the laundry equipment is provided with a second opening in communication with the outside, the second air outlet pipe communicates with the first opening, and the air permeation pipeline communicates with the second opening.

7. Laundry equipment according to claim 6, characterized in that, An air outlet detection device is arranged at the first opening and / or the second opening.

8. Laundry equipment according to any of claims 1 to 7, characterized in that, The cylinder assembly comprises an outer cylinder and a window pad connected with each other, the air inlet pipeline communicates with the window pad, and the air outlet pipeline and the air permeation pipeline both communicate with the outer cylinder.

9. Laundry equipment according to claim 8, characterized in that, The air outlet pipeline communicates with the front part or the middle part of the outer cylinder, and the air permeation pipeline communicates with the rear part of the outer cylinder.

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