Drain system for a washing device, washing device and control method

Abstract

The present application relates to the technical field of washing device, and particularly provides a drainage system for washing device, aiming at solving the problem that the washing water remaining in the flexible inner barrel flows out from the bottom drainage port when the flexible inner barrel is taken out and replaced, and the user needs to clean twice. For this purpose, the drainage system for washing device comprises a flexible inner barrel, a flexible outer barrel, a drainage pump and a sealing assembly, the flexible inner barrel is detachably arranged in the flexible outer barrel; the flexible inner barrel is provided with a drainage port, the sealing assembly is arranged on the drainage port of the flexible inner barrel and penetrates through the flexible outer barrel, and the drainage pump is connected through a pipeline and the sealing assembly; the sealing assembly is arranged to be opened under the negative pressure in the drainage pipeline when the drainage pump is started, and to be closed after the pressure in the drainage pipeline returns to normal when the drainage pump is stopped. When the flexible inner barrel is replaced, the sealing assembly is in a closed state, preventing the washing water from flowing out of the flexible inner barrel.

Description

Technical Field

[0001] This invention relates to the field of washing device technology, and specifically provides a drainage system, washing device, and control method for a washing device. Background Technology

[0002] As people's living standards improve, washing machines are entering more and more homes, and people's requirements for the functions of washing machines are also increasing. Existing technologies have developed washing machines for washing small items of clothing, such as underwear and socks. Because these small items of clothing are washed frequently and require a high degree of cleanliness, washing machines for washing small items of clothing are required to wash clothes quickly, and also to operate in a "single-person, single-tub" mode to avoid washing clothes together and cross-contamination.

[0003] Currently, small washing machines developed for small items of clothing typically use a flexible inner tub to hold the clothes and squeeze the tub to achieve washing and spin-drying. However, the drain outlet at the bottom of these flexible inner tubs is always open. When replacing the flexible inner tub, residual washing water inside the tub flows through the area the tub passed through during removal, requiring secondary cleaning. This causes inconvenience to users and affects their user experience. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that when the flexible inner tub of the existing washing device is removed and replaced, the residual washing water in the flexible inner tub flows out from the drain at the bottom, which requires the user to clean it again.

[0005] In a first aspect, the present invention provides a drainage system for a washing device, the drainage system comprising a flexible inner tub, a flexible outer tub, a drain pump and a sealing assembly, wherein the flexible inner tub is detachably disposed within the flexible outer tub; a drain outlet is provided within the flexible inner tub; the sealing assembly is disposed on the drain outlet of the flexible inner tub and passes through the flexible outer tub; and the drain pump is connected to the sealing assembly via a pipe.

[0006] The sealing assembly is configured to open under negative pressure in the drainage pipe when the drainage pump is turned on, and to close when the pressure in the drainage pipe returns to normal when the drainage pump is turned off.

[0007] In the preferred embodiment of the drainage system for the washing device described above, the sealing assembly includes a first fixing member, a second fixing member, a sealing member, a water-permeable plug, and an elastic member;

[0008] The first fixing member is fixedly installed at the drain outlet. The first fixing member is provided with a first stepped through hole and a second stepped through hole. The diameter of the first stepped through hole is smaller than that of the second stepped through hole.

[0009] The second fastener is fixedly inserted into the second stepped through hole. The second fastener is provided with a third stepped through hole and a fourth stepped through hole. The diameter of the third stepped through hole is smaller than that of the fourth stepped through hole.

[0010] The permeable plug is fixed inside the fourth step through hole, and the permeable plug is provided with permeable holes;

[0011] The sealing element is slidably disposed on the permeable plug, and can achieve sealing of the first stepped through hole after the sealing element extends a set distance.

[0012] One end of the elastic element is disposed on the water-permeable plug, and the other end is disposed on the sealing element.

[0013] In the preferred embodiment of the drainage system for the washing device described above, the sealing assembly includes a first magnet and a second magnet, the first magnet being a cylindrical pipe, and the second magnet being a door-shaped pivotally connected to the pipe outlet of the first magnet.

[0014] In the preferred embodiment of the drainage system for the washing device described above, the top of the flexible inner tub and the flexible outer tub are provided with a top cover, so that the top cover and the inner side of the flexible inner tub form a first sealing cavity, and the top cover, the outer side of the flexible inner tub and the inner side of the flexible outer tub form a second sealing cavity.

[0015] In the preferred embodiment of the drainage system for the washing device described above, the drainage system further includes a first air pipe and a second air pipe. One end of the first air pipe is connected to the first sealed cavity, and the other end is connected to the atmosphere. One end of the second air pipe is connected to the first air pipe through a diversion valve, and the other end is connected to the second sealed cavity. The diversion valve is configured to selectively connect either the first air pipe or the second air pipe to the atmosphere.

[0016] In the preferred embodiment of the drainage system for the washing device described above, a third magnet is provided on the flexible inner tub, and a fourth magnet is provided on the flexible outer tub. The flexible inner tub and the flexible outer tub are detachably connected by the third magnet and the fourth magnet.

[0017] The present invention also provides a washing device, the washing device including a drainage system for a washing device as described in any of the above technical solutions, the washing device further including a squeezing part, the squeezing part being disposed on the outside of the flexible outer tub; the squeezing part being configured to perform reciprocating squeezing on the flexible outer tub.

[0018] In the preferred embodiment of the above washing device, the squeezing part includes a driving device, a transmission shaft, and a plurality of cams with spiral protrusions fixed sequentially on the transmission shaft. The output end of the driving device is connected to the transmission shaft and can drive the cams to rotate. The squeezing part also includes a plurality of slidably arranged squeezing blocks, each squeezing block corresponding to one of the cams. The squeezing blocks are disposed between the cams and the flexible outer tub. When the cams rotate, they push the squeezing blocks to squeeze the flexible outer tub sequentially.

[0019] The present invention also provides a method for controlling the washing of clothes in a washing device. The washing device includes a drainage system, which includes a flexible inner tub, a flexible outer tub, a drain pump, and a sealing assembly. The flexible inner tub is detachably disposed inside the flexible outer tub. A drain outlet is provided inside the flexible inner tub. The sealing assembly is disposed on the drain outlet of the flexible inner tub and passes through the flexible outer tub. The drain pump is connected to the sealing assembly through a pipe. The sealing assembly is configured such that when the drain pump is turned on, the sealing assembly opens under the negative pressure in the drain pipe, and when the drain pump is turned off, the sealing assembly closes after the pressure in the drain pipe returns to normal.

[0020] The top of the flexible inner tub and the flexible outer tub are provided with a top cover, so that the top cover and the inner side of the flexible inner tub form a first sealing cavity, and the top cover, the outer side of the flexible inner tub and the inner side of the flexible outer tub form a second sealing cavity.

[0021] The drainage system further includes a first air pipe and a second air pipe. One end of the first air pipe is connected to the first sealed cavity, and the other end is connected to the atmosphere. One end of the second air pipe is connected to the first air pipe through a diversion valve, and the other end is connected to the second sealed cavity. The diversion valve is configured to selectively connect either the first air pipe or the second air pipe to the atmosphere.

[0022] The washing device further includes a squeezing section disposed on the outside of the flexible outer tub; the squeezing section is configured to perform reciprocating squeezing on the flexible outer tub.

[0023] The control method includes:

[0024] The diversion valve is controlled to allow the first air pipe to be connected to the atmosphere, while the second air pipe is sealed.

[0025] Control the drainage pump to shut down;

[0026] The extrusion section is controlled to reciprocate and extrude on the flexible outer barrel.

[0027] The present invention also provides a method for controlling the dehydration of clothes in a washing device. The washing device includes a drainage system, which includes a flexible inner tub, a flexible outer tub, a drain pump, and a sealing assembly. The flexible inner tub is detachably disposed inside the flexible outer tub. A drain outlet is provided inside the flexible inner tub. The sealing assembly is disposed on the drain outlet of the flexible inner tub and passes through the flexible outer tub. The drain pump is connected to the sealing assembly through a pipe. The sealing assembly is configured such that when the drain pump is turned on, the sealing assembly opens under the negative pressure in the drain pipe, and when the drain pump is turned off, the sealing assembly closes after the pressure in the drain pipe returns to normal.

[0028] The top of the flexible inner tub and the flexible outer tub are provided with a top cover, so that the top cover and the inner side of the flexible inner tub form a first sealing cavity, and the top cover, the outer side of the flexible inner tub and the inner side of the flexible outer tub form a second sealing cavity.

[0029] The drainage system further includes a first air pipe and a second air pipe. One end of the first air pipe is connected to the first sealed cavity, and the other end is connected to the atmosphere. One end of the second air pipe is connected to the first air pipe through a diversion valve, and the other end is connected to the second sealed cavity. The diversion valve is configured to selectively connect either the first air pipe or the second air pipe to the atmosphere.

[0030] The washing device further includes a squeezing section disposed on the outside of the flexible outer tub; the squeezing section is configured to perform reciprocating squeezing on the flexible outer tub.

[0031] The control method includes:

[0032] Controlling the diversion valve achieves the sealing of the first air pipe and the connection of the second air pipe to the atmosphere;

[0033] Control the drainage pump to start.

[0034] Those skilled in the art will understand that, in the technical solution of the present invention, the drainage system for the washing device includes a flexible inner tub, a flexible outer tub, a drain pump, and a sealing assembly. The flexible inner tub is detachably disposed inside the flexible outer tub. A drain outlet is provided inside the flexible inner tub. The sealing assembly is disposed on the drain outlet of the flexible inner tub and passes through the flexible outer tub. The drain pump is connected to the sealing assembly through a pipe. The sealing assembly is configured such that when the drain pump is turned on, the sealing assembly opens under the negative pressure in the drain pipe, and when the drain pump is turned off, the sealing assembly closes after the pressure in the drain pipe returns to normal.

[0035] With the above technical solution, the flexible inner tub of the drainage system of the present invention is detachably mounted on the flexible outer tub, allowing the flexible inner tub to be replaced according to different users, preventing cross-contamination caused by mixed laundry. When the washing device is not working and the flexible inner tub is being replaced, the drain pump is in a closed state, and correspondingly, the sealing component is also in a closed state, thus sealing the drain outlet of the flexible inner tub. When the flexible inner tub is removed from the flexible outer tub, the sealing component on the drain outlet of the flexible inner tub is removed along with the flexible inner tub, preventing residual water in the flexible inner tub from flowing out of the drain outlet, thereby solving the problem of water flowing outside the flexible inner tub during replacement, requiring user cleaning.

[0036] When the washing machine operates in spin-drying or draining mode, the drain pump turns on. The suction of the drain pump creates negative pressure in the drain pipe. Under this negative pressure, the sealing assembly opens, connecting the drain outlet of the flexible inner tub to the drain pipe, thereby draining the washing water from the inner tub. When the washing machine finishes operating, the drain pump turns off, and the sealing assembly closes accordingly. The drainage system of this invention for the washing machine utilizes the negative pressure generated in the drain pipe by the suction of the drain pump. This negative pressure provides the opening force for the sealing assembly, allowing it to open automatically without manual user control or additional electrical control logic. This connects the outlet of the flexible inner tub to the drain pipe, draining the washing water. When the washing machine is running or stopped, the drain pump is off, and the sealing assembly remains closed, thus not affecting the seal of the flexible inner tub during washing. The drainage system of this structure will not affect the normal operation of the washing device, and the opening and closing of the sealing component can be controlled by opening and closing the drain pump, thereby sealing or opening the outlet of the flexible inner tub. When replacing the flexible inner tub, it prevents residual washing water from flowing out of the flexible inner tub. The structure is simple and easy to maintain, greatly improving the user experience. Attached Figure Description

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0038] Figure 1This is a cross-sectional structural schematic diagram of the drainage system for the washing device of the present invention;

[0039] Figure 2 This is a cross-sectional structural schematic diagram of the sealing assembly of the present invention;

[0040] Figure 3 This is a schematic diagram of the extrusion section of the washing device of the present invention;

[0041] Figure 4 This is a flowchart of the steps of the laundry control method of the washing device of the present invention;

[0042] Figure 5 This is a flowchart of the steps of the garment dehydration control method of the washing device of the present invention.

[0043] List of reference numerals in the attached diagram:

[0044] 1. Flexible inner tub; 11. Third magnet; 12. Drain outlet; 2. Flexible outer tub; 21. Fourth magnet; 3. Sealing assembly; 31. First fixing member; 311. First stepped through hole; 312. Second stepped through hole; 32. Second fixing member; 321. Third stepped through hole; 322. Fourth stepped through hole; 33. Sealing member; 34. Water-permeable plug; 341. Water-permeable hole; 35. Elastic member; 4. Top cover; 41. Water inlet; 42. First sealing cavity; 43. Second sealing cavity; 5. First air pipe; 6. Second air pipe; 7. Extrusion section; 71. Drive device; 72. Transmission shaft; 73. Cam; 74. Extrusion block; 75. Guide member; 8. Filter screen; 81. Filter screen holder; 9. Drain pipe; 10. Diverter valve. Detailed Implementation

[0045] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the invention and are not intended to limit the scope of protection of the invention. Those skilled in the art can make adjustments as needed to adapt to specific applications.

[0046] It should be noted that in the description of this invention, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] Furthermore, it should be noted that, in the description of this invention, 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] like Figure 1 As shown, to address the problem that residual washing water in the flexible inner tub of existing washing devices flows out from the drain outlet 12 at the bottom when the flexible inner tub is removed for replacement, requiring secondary cleaning by the user, the drainage system for the washing device of the present invention includes a flexible inner tub 1, a flexible outer tub 2, a drain pump (not shown in the figure), and a sealing assembly 3. The flexible inner tub 1 is detachably installed inside the flexible outer tub 2; a drain outlet 12 is provided inside the flexible inner tub 1, and the sealing assembly 3 is installed on the drain outlet 12 of the flexible inner tub 1 and passes through the flexible outer tub 2. The drain pump is connected to the sealing assembly 3 through a pipe; the sealing assembly 3 is configured such that when the drain pump is turned on, the sealing assembly 3 opens under the negative pressure in the drain pipe 9, and when the drain pump is turned off, the sealing assembly 3 closes after the pressure in the drain pipe 9 returns to normal.

[0049] The advantages of the above-described arrangement are as follows: the flexible inner tub 1 of the drainage system of the present invention is detachably mounted on the flexible outer tub 2, thereby allowing the flexible inner tub 1 to be replaced according to different users, preventing cross-contamination caused by mixed laundry. When replacing the flexible inner tub 1, the washing device is not working, the drain pump is in a closed state, and correspondingly, the sealing component 3 is also in a closed state, thereby sealing the drain outlet 12 of the flexible inner tub 1. When the flexible inner tub 1 is removed from the flexible outer tub 2, the sealing component 3 mounted on the drain outlet 12 of the flexible inner tub 1 is removed along with the flexible inner tub 1, thus preventing residual water in the flexible inner tub 1 from flowing out of the drain outlet 12, thereby solving the problem of water flowing outside the flexible inner tub 1 during replacement, requiring user cleaning.

[0050] When the washing device operates in spin-drying or draining mode, the drain pump turns on. The suction of the drain pump creates a negative pressure in the drain pipe 9. Under the action of this negative pressure, the sealing component 3 opens, thereby connecting the drain outlet 12 of the flexible inner tub 1 with the drain pipe 9, thus draining the washing water from the inner tub. When the washing device finishes working, the drain pump turns off, and the sealing component 3 also closes. The drainage system for the washing device of this invention utilizes the negative pressure generated in the drain pipe 9 by the suction of the drain pump. This negative pressure provides the opening force for the sealing component 3, allowing it to open automatically without manual control by the user. This connects the outlet of the flexible inner tub 1 with the drain pipe 9, draining the washing water. When the washing device is running or stopped, the drain pump is in the off state, and the sealing component 3 remains closed, thus not affecting the sealing of the flexible inner tub 1 during washing. The drainage system of this structure will not affect the normal operation of the washing device, and the opening and closing of the sealing component 3 can be controlled by the opening and closing of the drain pump, thereby sealing or opening the outlet of the flexible inner tub 1. When replacing the flexible inner tub 1, it prevents residual washing water from flowing out of the flexible inner tub 1. The structure is simple and easy to maintain, greatly improving the user experience.

[0051] like Figure 1 , Figure 2 As shown, in one possible embodiment, the sealing assembly 3 includes a first fixing member 31, a second fixing member 32, a sealing member 33, a water-permeable plug 34, and an elastic member 35; the first fixing member 31 is fixedly disposed at the drain outlet 12, and the first fixing member 31 is provided with a first stepped through hole 311 and a second stepped through hole 312, the diameter of the first stepped through hole 311 being smaller than that of the second stepped through hole 312; the second fixing member 32 is fixedly inserted into the second stepped through hole 312, and the second fixing member 32 is provided with a third stepped through hole 321 and a fourth stepped through hole 322, the diameter of the third stepped through hole 321 being smaller than that of the fourth stepped through hole 322; the water-permeable plug 34 is fixed in the fourth stepped through hole 322, and the water-permeable plug 34 is provided with a water-permeable hole 341;

[0052] The seal 33 is slidably disposed on the permeable plug 34, and after the seal 33 extends a set distance, it can achieve a seal on the first stepped through hole 311. Figure 2 (In the unsealed state); one end of the elastic element 35 is disposed on the water-permeable plug 34, and the other end is disposed on the sealing element 33. Preferably, the elastic element 35 is a spring.

[0053] The advantages of the above-mentioned arrangement are as follows: the first fixing member 31 is fixedly installed at the drain outlet 12, the first stepped through hole 311 and the second stepped through hole 312 are connected to the drain outlet 12, the second fixing member 32 is inserted into the second stepped through hole 312, so that the third stepped through hole 321 and the fourth stepped through hole 322 of the second fixing member 32 are connected to the drain outlet 12 respectively, the water-permeable plug 34 is fixed in the fourth stepped through hole 322, the sealing member 33 is slidably installed on the water-permeable plug 34, and an elastic member 35 is provided between the sealing member 33 and the water-permeable plug 34. When the washing device is operating the washing function or not operating, the drain pump is in the off state. Correspondingly, the seal 33 is in the state of sealing the first stepped through hole 311 under the elastic force of the elastic member 35, thereby sealing the flexible inner tub 1. When the washing device is operating the spin-drying or draining function, the drain pump is turned on, and the seal 33 is subjected to the negative pressure in the drain pipe 9. The negative pressure is greater than the elastic force of the elastic member 35, causing the seal 33 to compress the elastic member 35, thereby causing the seal 33 to move away from the first stepped through hole 311 by a set distance, so that the first stepped through hole 311 is connected to the drain pipe 9, and the water in the flexible inner tub 1 is drained. Figure 2 (The state shown is the state during drainage). When the washing device finishes its spin-drying or draining operation, the drain pump is turned off, and the seal 33 is subjected to the rebound force of the elastic member 35, causing the seal 33 to rebound to the state of sealing the first stepped through hole 311. When the flexible inner tub 1 is replaced, the drain pump is in the off state, and the seal 33 is in the state of sealing the first stepped through hole 311, so that the water remaining in the tub after the flexible inner tub 1 is removed will not flow out from the drain outlet 12, improving the user experience.

[0054] The above describes a detailed implementation method. However, this openable and closable structure is not limited to the above scheme. For example, in another possible implementation, the sealing component 3 includes a first magnet (not shown in the figure) and a second magnet (not shown in the figure). The first magnet is in the form of a cylindrical pipe and is fixed at the drain outlet 12. The second magnet is in the form of a door and is pivotally connected to the pipe outlet of the first magnet.

[0055] The advantages of the above setup are as follows: the second magnet is attracted to the first magnet under magnetic force, thus sealing the pipe of the first magnet and consequently sealing the drain outlet 12. When the drain pump is turned on, the negative pressure in the drain pipe 9 exceeds the attraction between the second and first magnets, causing the second magnet to move away from the first magnet. This connects the drain outlet 12 and the drain pipe 9, allowing water to drain from the flexible inner tub 1. When the drain pump is turned off, the second magnet loses the negative pressure and remains in a state of sealing the pipe of the first magnet under the magnetic attraction of the first magnet until the drain pump is turned on again. When the flexible inner tub 1 is replaced, the second magnet seals the pipe of the first magnet, preventing water from flowing out of the flexible inner tub 1.

[0056] The implementation method of sealing component 3 has been described above. The specific connection relationship between the flexible inner tub and the flexible outer tub will be described below, such as... Figure 1 As shown, in one possible implementation, a top cover 4 is provided on the top of the flexible inner tub 1 and the flexible outer tub 2, so that the top cover 4 and the inner side of the flexible inner tub 1 form a first sealing cavity 42, and the top cover 4, the outer side of the flexible inner tub 1 and the inner side of the flexible outer tub 2 form a second sealing cavity 43. The drainage system also includes a first air pipe 5 and a second air pipe 6. One end of the first air pipe 5 is connected to the first sealing cavity 42 and the other end is connected to the atmosphere. One end of the second air pipe 6 is connected to the first air pipe 5 through a diversion valve 10 and the other end is connected to the second sealing cavity 43. The diversion valve 10 is configured to selectively connect either the first air pipe 5 or the second air pipe 6 to the atmosphere.

[0057] When the washing machine spins the clothes, the first air pipe 5 can be closed and the second air pipe 6 can be opened by the diversion valve 10, so that the first sealing chamber 42 is sealed and the second sealing chamber 43 is connected to the atmosphere. The drain pump starts to pump water, and the sealing component 3 is opened by negative pressure. Because the first sealing chamber 42 is sealed and the second sealing chamber 43 is connected to the atmosphere, only the flexible inner tub 1 is gradually contracted and squeezed by the suction of the drain pump, so that the water in the clothes is squeezed out of the clothes and discharged from the flexible inner tub 1.

[0058] When the washing device operates the washing function, the flexible outer tub 2 is compressed, thereby washing the clothes inside. At this time, the first air pipe 5 is connected to the atmosphere, and the second air pipe 6 is closed, so that the first sealing cavity 42 is connected to the atmosphere and the second sealing cavity 43 is sealed. This prevents the gas in the flexible inner tub 1 from being trapped during compression. When the tub is compressed, it cannot be compressed. The second sealing cavity 43 is sealed to prevent gas from entering the second sealing cavity 43. This prevents the flexible outer tub 2 from returning to its original state before compression after the compression ends, while the flexible inner tub 1 does not return to its original state in time. The design of the second sealing cavity 43 being in a sealed state during the washing process is equivalent to an airbag. The outer wall of the flexible inner tub 1 and the inner wall of the flexible outer tub 2 are equivalent to the two sides of the airbag, thus avoiding frequent contact between the flexible outer tub 2 and the flexible inner tub 1.

[0059] like Figure 1 As shown, in one possible implementation, a third magnet 11 is provided on the flexible inner tub 1, and a fourth magnet 21 is provided on the flexible outer tub 2. The flexible inner tub 1 and the flexible outer tub 2 are detachably connected by the third magnet 11 and the fourth magnet 21.

[0060] The advantages of the above setup are: a third magnet 11 is set on the flexible inner tub 1 and a fourth magnet 21 is set on the flexible outer tub 2. When the flexible inner tub 1 is placed into the flexible outer tub 2, the magnets can quickly attract the flexible inner tub 1 into place under the interaction of magnetic attraction, making installation and disassembly more convenient.

[0061] It should be noted that the above embodiments are merely used to illustrate the principles of the present invention and are not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.

[0062] For example, in an alternative embodiment, the elastic element 35 can also be elastic rubber. The elastic rubber contracts under the negative pressure of the drain pump in the drain pipe 9 and rebounds when the negative pressure is lost so that the seal 33 closes the drain outlet 12 of the flexible inner barrel 1. Therefore, there are no restrictions on the specific structure of the elastic element 35, as long as the elastic element 35 is elastic. These do not deviate from the principle of the present invention and therefore all fall within the protection scope of the present invention.

[0063] For example, in an alternative embodiment, the detachable connection between the flexible inner tub 1 and the flexible outer tub 2 is not limited to the structure of the third magnet 11 and the fourth magnet 21. The flexible inner tub 1 can also be provided with a buckle, and the flexible outer tub 2 can be provided with a slot. The flexible inner tub 1 and the flexible outer tub 2 are detachably connected by the buckle and the slot. Therefore, there are no restrictions on the connection method between the flexible inner tub 1 and the flexible outer tub 2, as long as the flexible inner tub 1 and the flexible outer tub 2 can be detachably connected. These do not deviate from the principle of the present invention and therefore all fall within the protection scope of the present invention.

[0064] Finally, it should be noted that although the present invention is described using a washing machine for washing small items of clothing as an example, the washing device of the present invention can obviously also be other devices, such as a shoe washing machine, which can also be applied to a sock washing machine, etc.

[0065] Furthermore, the present invention also provides a washing device having a drainage system for a washing device as described in any of the above embodiments, such as... Figure 3 As shown, the washing device also includes a squeezing part 7, which is disposed on the outside of the flexible outer tub 2; the squeezing part 7 is configured to perform reciprocating squeezing on the flexible outer tub 2.

[0066] The advantages of the above-mentioned arrangement are as follows: the outer side of the flexible outer tub 2 of the washing device is provided with a squeezing part 7, which squeezes back and forth on the flexible outer tub 2. Through squeezing, the flexible inner tub 1 and the flexible outer tub 2 are deformed, so that the clothes in the flexible inner tub 1 are constantly rubbed and squeezed against the inner wall of the flexible inner tub 1, so that the stains on the clothes are removed from the clothes with the washing water, thereby achieving the effect of cleaning the clothes.

[0067] like Figure 3 As shown, in one possible embodiment, the extrusion section 7 includes a drive device 71, a transmission shaft 72, and a plurality of cams 73 with spiral protrusions fixed sequentially on the transmission shaft 72. The output end of the drive device 71 is connected to the transmission shaft 72 and can drive the cams 73 to rotate. The extrusion section 7 also includes a plurality of slidably arranged extrusion blocks 74, which are arranged in a one-to-one correspondence with the cams 73. The extrusion blocks 74 are arranged between the cams 73 and the flexible outer barrel 2. When the cams 73 rotate, they push the extrusion blocks 74 to extrude the flexible outer barrel 2 sequentially.

[0068] The advantages of the above-described configuration are as follows: the extrusion section 7 is configured as a spiral protrusion composed of multiple cams 73. The driving device 71 drives the spiral protrusion to rotate, so that the cams 73 on the spiral protrusion can sequentially extrude the flexible outer tub 2, causing the flexible outer tub 2 and the flexible inner tub 1 to deform. Through the time and position differences in the extrusion of the flexible outer tub 2, the water flow in the flexible inner tub 1 is extruded and guided. The water flow continuously flows in various positions within the flexible inner tub 1 according to the different extrusion positions and extrusion times, forming a complete loop. Compared with extrusion at a fixed position, the water flow is more fluid, allowing the clothes to continuously flow and tumble in the tub with the water flow, resulting in more thorough contact between the clothes and detergent, thereby improving the uniformity of the clothes' cleanliness. It should be noted that the present invention does not impose any restrictions on the specific structure and placement of the spiral protrusion. Those skilled in the art can set it according to actual usage requirements. For example, the spiral protrusion can also be a spiral shaft, as long as the spiral protrusion can extrude the flexible outer tub 2 at different times and positions.

[0069] In an alternative embodiment, the extrusion part 7 is provided with an air bladder (not shown in the figure), and an extrusion plate (not shown in the figure) is provided on the air bladder. The extrusion plate is used to extrude the flexible outer barrel 2 by inflating the air bladder. Therefore, there are no restrictions on the specific structure of the extrusion part 7, as long as the extrusion part 7 can extrude the flexible outer barrel 2. These are not contrary to the principle of the present invention, and therefore all fall within the protection scope of the present invention.

[0070] like Figure 3 As shown, in an alternative embodiment, the extrusion part 7 is also fixedly provided with a guide 75, and the extrusion block 74 is slidably disposed on the guide 75. These do not deviate from the principle of the present invention, and therefore all fall within the protection scope of the present invention.

[0071] The present invention also provides a method for controlling the washing of clothes in a washing device, such as... Figure 1 , Figure 2 , Figure 3 As shown, the washing device includes a drainage system, which includes a flexible inner tub 1, a flexible outer tub 2, a drain pump, and a sealing assembly 3. The flexible inner tub 1 is detachably installed inside the flexible outer tub 2. A drain outlet 12 is provided inside the flexible inner tub 1. The sealing assembly 3 is installed on the drain outlet 12 of the flexible inner tub 1 and passes through the flexible outer tub 2. The drain pump is connected to the sealing assembly 3 through a pipe. The sealing assembly 3 is configured to open under the negative pressure in the drain pipe 9 when the drain pump is turned on, and to close when the pressure in the drain pipe 9 returns to normal when the drain pump is turned off.

[0072] The top of the flexible inner tub 1 and the flexible outer tub 2 is provided with a cover 4, so that the cover 4 and the inner side of the flexible inner tub 1 form a first sealing cavity 42, and the cover 4, the outer side of the flexible inner tub 1 and the inner side of the flexible outer tub 2 form a second sealing cavity 43.

[0073] The drainage system also includes a first air pipe 5 and a second air pipe 6. One end of the first air pipe 5 is connected to the first sealing cavity 42 and the other end is connected to the atmosphere. One end of the second air pipe 6 is connected to the first air pipe 5 through a diversion valve 10 and the other end is connected to the second sealing cavity 43. The diversion valve 10 is configured to selectively connect either the first air pipe 5 or the second air pipe 6 to the atmosphere.

[0074] The washing device also includes a squeezing part 7, which is disposed on the outside of the flexible outer tub 2; the squeezing part 7 is configured to perform reciprocating squeezing on the flexible outer tub 2.

[0075] like Figure 4 As shown, the control method includes:

[0076] S11: Control the diversion valve to connect the first air pipe to the atmosphere and seal the second air pipe;

[0077] S12: Controls the drainage pump to shut down;

[0078] S13: Control the extrusion section to reciprocate and extrude on the flexible outer barrel.

[0079] The advantages of the above-mentioned setup are as follows: When the washing device washes clothes, it first controls the diversion valve 10 to connect the first air pipe 5 with the atmosphere and the second air pipe 6 to be sealed. Correspondingly, the first sealing chamber 42 is connected with the atmosphere and the second sealing chamber 43 is sealed. Then, it controls the drain pump to be turned off, and then the sealing component 3 seals the drain outlet 12 of the flexible inner tub 1. Next, it controls the squeezing part 7 to reciprocate on the flexible outer tub 2, so that the clothes in the flexible inner tub 1 are subjected to reciprocating squeezing, thereby removing the stains from the clothes. During the squeezing process, the first sealing chamber 42 is connected to the atmosphere, which prevents the air in the flexible inner tub 1 from being trapped and thus prevents it from being squeezed, thus affecting the squeezing effect. The second sealing chamber 43 is closed to prevent gas from entering. The squeezing plate returns to its original position, and the flexible outer tub 2 returns to its original unsqueezed state. However, the flexible inner tub 1 does not return to its original state in time. The design of the second sealing chamber 43 being in a sealed state during the washing process is equivalent to an airbag. The outer wall of the flexible inner tub 1 and the inner wall of the flexible outer tub 2 are equivalent to the two sides of the airbag, thus avoiding frequent contact between the flexible outer tub 2 and the flexible inner tub 1.

[0080] The present invention also provides a method for controlling the dehydration of clothes in a washing device, such as... Figure 1 , Figure 2 , Figure 3As shown, the washing device includes a drainage system, which includes a flexible inner tub 1, a flexible outer tub 2, a drain pump, and a sealing assembly 3. The flexible inner tub 1 is detachably installed inside the flexible outer tub 2. A drain outlet 12 is provided inside the flexible inner tub 1. The sealing assembly 3 is installed on the drain outlet 12 of the flexible inner tub 1 and passes through the flexible outer tub 2. The drain pump is connected to the sealing assembly 3 through a pipe. The sealing assembly 3 is configured to open under the negative pressure in the drain pipe 9 when the drain pump is turned on, and to close when the pressure in the drain pipe 9 returns to normal when the drain pump is turned off.

[0081] The top of the flexible inner tub 1 and the flexible outer tub 2 is provided with a cover 4, so that the cover 4 and the inner side of the flexible inner tub 1 form a first sealing cavity 42, and the cover 4, the outer side of the flexible inner tub 1 and the inner side of the flexible outer tub 2 form a second sealing cavity 43.

[0082] The drainage system also includes a first air pipe 5 and a second air pipe 6. One end of the first air pipe 5 is connected to the first sealing cavity 42 and the other end is connected to the atmosphere. One end of the second air pipe 6 is connected to the first air pipe 5 through a diversion valve 10 and the other end is connected to the second sealing cavity 43. The diversion valve 10 is configured to selectively connect either the first air pipe 5 or the second air pipe 6 to the atmosphere.

[0083] The washing device also includes a squeezing part 7, which is disposed on the outside of the flexible outer tub 2; the squeezing part 7 is configured to perform reciprocating squeezing on the flexible outer tub 2.

[0084] like Figure 5 As shown, the control method includes:

[0085] S21: Control the diversion valve to achieve the sealing of the first air pipe and the connection of the second air pipe to the atmosphere;

[0086] S22: Control the drainage pump to start.

[0087] The advantages of the above setup are as follows: When the washing device is spinning clothes, firstly, the diversion valve 10 is controlled to seal the first air pipe 5, while the second air pipe 6 is connected to the atmosphere. Correspondingly, the first sealing chamber 42 is sealed, and the second sealing chamber 43 is connected to the atmosphere. Then, the drain pump is turned on, which in turn opens the sealing assembly 3 to connect the drain outlet 12 and the drain pipe 9. When the washing device is running the spin-drying program, the first sealing chamber 42 is sealed, the second sealing chamber 43 is connected to the atmosphere, and the drain outlet 12 at the bottom of the flexible inner tub 1 is opened. The suction of the drain pump causes the flexible inner tub 1 to deform and contract. The clothes in the flexible inner tub 1 are squeezed by the contraction of the side wall of the flexible inner tub 1, and the washing water is squeezed out of the clothes and finally discharged from the drain outlet 12, achieving the effect of spinning clothes.

[0088] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A method for controlling the washing of clothes in a washing device, characterized in that, The washing device includes a drainage system comprising a flexible inner tub, a flexible outer tub, a drain pump, and a sealing assembly. The flexible inner tub is detachably disposed within the flexible outer tub. A drain outlet is provided within the flexible inner tub. The sealing assembly is disposed on the drain outlet of the flexible inner tub and passes through the flexible outer tub. The drain pump is connected to the sealing assembly via a pipe. The sealing assembly is configured such that when the drain pump is turned on, the sealing assembly opens under negative pressure within the drain pipe; and when the drain pump is turned off, the sealing assembly closes after the pressure within the drain pipe returns to normal. The top of the flexible inner tub and the flexible outer tub are provided with a top cover, so that the top cover and the inner side of the flexible inner tub form a first sealing cavity, and the top cover, the outer side of the flexible inner tub and the inner side of the flexible outer tub form a second sealing cavity. The drainage system further includes a first air pipe and a second air pipe. One end of the first air pipe is connected to the first sealed cavity, and the other end is connected to the atmosphere. One end of the second air pipe is connected to the first air pipe through a diversion valve, and the other end is connected to the second sealed cavity. The diversion valve is configured to selectively connect either the first air pipe or the second air pipe to the atmosphere. The washing device further includes a squeezing section disposed on the outside of the flexible outer tub; the squeezing section is configured to perform reciprocating squeezing on the flexible outer tub. The control method includes: The diversion valve is controlled to allow the first air pipe to be connected to the atmosphere, while the second air pipe is sealed. Control the drainage pump to shut down; The extrusion section is controlled to reciprocate and extrude on the flexible outer barrel.

2. The method for controlling the washing of clothes using a washing device according to claim 1, characterized in that, The sealing assembly includes a first fixing member, a second fixing member, a sealing member, a water-permeable plug, and an elastic member; The first fixing member is fixedly installed at the drain outlet. The first fixing member is provided with a first stepped through hole and a second stepped through hole. The diameter of the first stepped through hole is smaller than that of the second stepped through hole. The second fastener is fixedly inserted into the second stepped through hole. The second fastener is provided with a third stepped through hole and a fourth stepped through hole. The diameter of the third stepped through hole is smaller than that of the fourth stepped through hole. The permeable plug is fixed inside the fourth step through hole, and the permeable plug is provided with permeable holes; The sealing element is slidably disposed on the permeable plug, and can achieve sealing of the first stepped through hole after the sealing element extends a set distance. One end of the elastic element is disposed on the water-permeable plug, and the other end is disposed on the sealing element.

3. The method for controlling the washing of clothes using a washing device according to claim 1, characterized in that, The sealing assembly includes a first magnet and a second magnet. The first magnet is a cylindrical pipe and is fixed at the drain outlet. The second magnet is a door-shaped pivotal connection to the pipe outlet of the first magnet.

4. The method for controlling the washing of clothes using a washing device according to claim 1, characterized in that, The flexible inner tub is provided with a third magnet, and the flexible outer tub is provided with a fourth magnet. The flexible inner tub and the flexible outer tub are detachably connected by the third magnet and the fourth magnet.

5. The method for controlling the washing of clothes using a washing device according to claim 1, characterized in that, The extrusion section includes a drive device, a transmission shaft, and a plurality of cams with spiral protrusions fixed sequentially on the transmission shaft. The output end of the drive device is connected to the transmission shaft and can drive the cams to rotate. The extrusion section also includes a plurality of slidably arranged extrusion blocks, which are arranged one-to-one with the cams and are disposed between the cams and the flexible outer barrel. When the cams rotate, they push the extrusion blocks to extrude the flexible outer barrel sequentially.

6. A method for controlling the dehydration of clothes in a washing device, characterized in that, The washing device includes a drainage system comprising a flexible inner tub, a flexible outer tub, a drain pump, and a sealing assembly. The flexible inner tub is detachably disposed within the flexible outer tub. A drain outlet is provided within the flexible inner tub. The sealing assembly is disposed on the drain outlet of the flexible inner tub and passes through the flexible outer tub. The drain pump is connected to the sealing assembly via a pipe. The sealing assembly is configured such that when the drain pump is turned on, the sealing assembly opens under negative pressure within the drain pipe; and when the drain pump is turned off, the sealing assembly closes after the pressure within the drain pipe returns to normal. The top of the flexible inner tub and the flexible outer tub are provided with a top cover, so that the top cover and the inner side of the flexible inner tub form a first sealing cavity, and the top cover, the outer side of the flexible inner tub and the inner side of the flexible outer tub form a second sealing cavity. The drainage system further includes a first air pipe and a second air pipe. One end of the first air pipe is connected to the first sealed cavity, and the other end is connected to the atmosphere. One end of the second air pipe is connected to the first air pipe through a diversion valve, and the other end is connected to the second sealed cavity. The diversion valve is configured to selectively connect either the first air pipe or the second air pipe to the atmosphere. The washing device further includes a squeezing section disposed on the outside of the flexible outer tub; the squeezing section is configured to perform reciprocating squeezing on the flexible outer tub. The control method includes: Controlling the diversion valve achieves the sealing of the first air pipe and the connection of the second air pipe to the atmosphere; Control the drainage pump to start.

7. The method for controlling the dehydration of clothes in a washing device according to claim 6, characterized in that, The sealing assembly includes a first fixing member, a second fixing member, a sealing member, a water-permeable plug, and an elastic member; The first fixing member is fixedly installed at the drain outlet. The first fixing member is provided with a first stepped through hole and a second stepped through hole. The diameter of the first stepped through hole is smaller than that of the second stepped through hole. The second fastener is fixedly inserted into the second stepped through hole. The second fastener is provided with a third stepped through hole and a fourth stepped through hole. The diameter of the third stepped through hole is smaller than that of the fourth stepped through hole. The permeable plug is fixed inside the fourth step through hole, and the permeable plug is provided with permeable holes; The sealing element is slidably disposed on the permeable plug, and can achieve sealing of the first stepped through hole after the sealing element extends a set distance. One end of the elastic element is disposed on the water-permeable plug, and the other end is disposed on the sealing element.

8. The method for controlling the dehydration of clothes in a washing device according to claim 6, characterized in that, The sealing assembly includes a first magnet and a second magnet. The first magnet is a cylindrical pipe and is fixed at the drain outlet. The second magnet is a door-shaped pivotal connection to the pipe outlet of the first magnet.

9. The method for controlling the dehydration of clothes in a washing device according to claim 6, characterized in that, The flexible inner tub is provided with a third magnet, and the flexible outer tub is provided with a fourth magnet. The flexible inner tub and the flexible outer tub are detachably connected by the third magnet and the fourth magnet.

10. The method for controlling the dehydration of clothes in a washing device according to claim 6, characterized in that, The extrusion section includes a drive device, a transmission shaft, and a plurality of cams with spiral protrusions fixed sequentially on the transmission shaft. The output end of the drive device is connected to the transmission shaft and can drive the cams to rotate. The extrusion section also includes a plurality of slidably arranged extrusion blocks, which are arranged one-to-one with the cams and are disposed between the cams and the flexible outer barrel. When the cams rotate, they push the extrusion blocks to extrude the flexible outer barrel sequentially.

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