Inner barrel structure and washing machine

Abstract

The invention provides an inner barrel structure and a washing machine, at least part of the inner wall of an inner barrel is provided with an air bag, a vent hole of the air bag is connected with a ventilation structure, air is fed into or discharged from the air bag through the ventilation structure, the air bag expands or contracts into the inner barrel, and the internal volume of the inner barrel is adjusted to be reduced or increased. The air bag capable of generating expansion or contraction deformation is arranged in the inner barrel, and the inner space of the inner barrel is adjusted by utilizing the telescopic air bag, so that the size of the inner space of the inner barrel is directly adjusted, and the effect of adaptively adjusting the washing volume of the washing machine is achieved; therefore, the remarkable technical progress of reducing the water consumption of the washing machine can be achieved. Meanwhile, the device is simple in structure, simple in method, remarkable in effect and suitable for application and popularization.

Description

Technical Field

[0001] The present invention relates to a washing machine belonging to the technical field of clothing processing equipment, and in particular to an inner drum structure of a washing machine. Background Art

[0002] At present, in order to save resources, the government advocates energy conservation and emission reduction and reduces resource waste. The washing capacity of existing washing machines is fixed. If users have a small amount of clothes to wash, they still have to waste a lot of water and electricity. In the current home environment, users will pile up the clothes and then wash them, and rarely distinguish between clothes of different materials, which makes the material differentiation washing program of the washing machine itself useless.

[0003] Some technical solutions for adjusting the washing capacity of a washing machine have been proposed. However, in the existing technical solutions, only the size of the space for holding clothes isolated in the inner drum of the washing machine is adjusted, and the water holding space of the washing machine is not adjusted. As a result, after the washing machine adjusts the space for holding clothes in the inner drum and washes a small amount of clothes, it still needs to take in a normal amount of water, which cannot reduce water consumption, reduce the weight of the inner drum, or reduce the energy consumption of the washing machine.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an inner drum structure to achieve the purpose of adjusting the water holding space of the washing machine; at the same time, the present invention also provides a washing machine to achieve the purpose of adaptively adjusting the washing volume when washing clothes of different weights.

[0006] In order to achieve the above-mentioned invention object, the basic concept of the technical solution adopted by the present invention is:

[0007] The present invention provides an inner cylinder structure, wherein an airbag is provided on at least part of the inner wall of the inner cylinder, the ventilation hole of the airbag is connected to a ventilation structure, air is introduced into or out of the airbag by means of the ventilation structure, the airbag expands or contracts into the inner cylinder, and the internal volume of the inner cylinder is adjusted to decrease or increase.

[0008] Furthermore, a double-layer airbag is laid on the inner wall of the inner tube, and the double-layer airbag includes a first side portion and a second side portion that are laid overlappingly, and the outer peripheral portions of the first side portion and the second side portion overlap and are fixedly connected accordingly, and the gap space between the first side portion and the second side portion constitutes a cavity for gas to enter or flow out.

[0009] Furthermore, the first side portion of the double-layer airbag is fixedly connected to the tube wall, and the second side portion is freely and retractably arranged, and the gap between the first side portion and the second side portion of the double-layer airbag constitutes a accommodating space for gas to enter or flow out; at least the second side portion of the double-layer airbag is made of a material that can produce elastic deformation, so that when air enters / exhales the double-layer airbag, the second side portion of the double-layer airbag expands or contracts toward the inner tube.

[0010] Furthermore, at least one lifting portion protruding radially inward is provided on the cylindrical wall of the inner tube, and a double-layer airbag is laid on one side of the lifting portion facing the inner part of the inner tube.

[0011] Furthermore, a plurality of lifting portions are arranged at equal intervals on the cylindrical wall of the inner tube, and each lifting portion extends in a direction parallel to the axis of the inner tube and protrudes radially toward the inside of the inner tube; a double-layer airbag is laid on one side of each lifting portion facing the inside of the inner tube; preferably, a side surface of the lifting portion protruding toward the inside of the inner tube is an arc-shaped surface whose height gradually narrows from the middle to both sides toward the wall of the inner tube along the circumference of the inner tube; a first side portion of the double-layer airbag is laid on the outer wall side of the arc-shaped surface, and the outer periphery of the first side portion and the second side portion of the double-layer airbag is seal-connected, and the connected portion is fixedly connected to the joint between the lifting portion and the tube wall.

[0012] Furthermore, the ventilation structure includes a two-way air pump; the ventilation port of the two-way air pump is connected to the ventilation port of the airbag through a pipeline, and is used to intake air into the airbag or discharge the gas in the airbag.

[0013] Furthermore, an installation cavity is provided on the inner cylinder, and the two-way air pump is arranged in the installation cavity. The installation cavity has a first opening connected with the interior of the inner cylinder, and the air vent of the double-layer airbag passes through the first opening and extends into the installation cavity, and the ventilation port of the two-way air pump is connected with the air vent of the double-layer airbag; preferably, a sealing ring is provided at the first opening of the installation cavity to fill the gap between the air vent and the installation cavity, so as to isolate water from flowing into the installation cavity.

[0014] Furthermore, the installation cavity has a second opening connected to the outside of the inner cylinder, and a breathable valve is provided at the second opening to control the second opening so that only air can flow through and water cannot flow into the installation cavity.

[0015] Furthermore, a lifting portion protruding radially toward the interior of the inner tube is provided on the wall of the inner tube, the interior of the lifting portion is hollow to form an installation cavity, and the two-way air pump is arranged in the installation cavity inside the lifting portion; preferably, a plurality of lifting portions are equally spaced and arranged around the inner side of the cylindrical wall of the inner tube, and each lifting portion is provided with a double-layer air bag on the side facing the interior of the inner tube; a two-way air pump is provided inside each lifting portion, and each two-way air pump is connected one by one with the air vent of the double-layer air bag provided on the outer wall of the corresponding lifting portion.

[0016] The present invention also provides a washing machine having any of the inner drum structures described above.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0018] By arranging an airbag that can expand or contract inside the inner drum, the internal space of the inner drum is adjusted by using the telescopic airbag, so as to achieve the effect of adaptively adjusting the washing volume of the washing machine, thereby achieving a significant technical progress in reducing the water consumption of the washing machine; at the same time, through the above-mentioned arrangement, the capacity of the inner drum can be adaptively adjusted when washing clothes of different volumes and weights, thereby achieving a significant technical progress in improving the washing effect of the washing machine.

[0019] At the same time, the invention has a simple structure, a concise method, and a significant effect, and is suitable for popularization and use.

[0020] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0022] Figure 1 Schematic diagram of the working process of the washing program of the washing machine in the embodiment of the present invention;

[0023] Figure 2 Schematic diagram of the working process of the dehydration program of the washing machine in an embodiment of the present invention;

[0024] Figure 3 Schematic diagram of the working process of the dehydration process of the washing machine in an embodiment of the present invention;

[0025] Figure 4 is a rear view structural diagram of the inner and outer drum structures of a washing machine in Embodiment 2 of the present invention;

[0026] Figure 5 In the second embodiment of the present invention Figure 4 AA cross-sectional structure schematic diagram;

[0027] Figure 6 It is a schematic diagram of the exploded structure of the inner and outer drum structures of the washing machine in the second embodiment of the present invention;

[0028] Figure 7 is a schematic diagram of the front view of the inner drum of a washing machine in Embodiment 3 of the present invention;

[0029] Figure 8 In the third embodiment of the present invention Figure 7 Schematic diagram of BB cross-section structure;

[0030] Fig. 9 This is a schematic diagram of the structure of the inner cylinder after removing the inner cylinder mouth in the third embodiment of the present invention;

[0031] Description of the main components in the figure:

[0032] 1. Inner tube; 101. Tube wall; 102. Inner tube bottom; 103. Inner tube mouth; 2. Volume adjustment assembly; 3. Outer tube; 4. Driving motor; 20. Clothes storage space; 21. Airbag; 22. Ventilation structure; 23. Lifting part; 201. Piston plate; 202. Front part; 203. Rear part; 204. Driving structure; 210. Double-layer airbag; 211. First side part; 212. Second side part; 213. Connecting part; 214. Ventilation port; 220. Two-way air pump; 221. Pipeline; 230. Installation cavity; 231. First opening; 232. Second opening.

[0033] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0035] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 9As shown, a washing machine is introduced in an embodiment of the present invention, and the washing machine can be any existing washing device that can wash clothes, such as: a drum washing machine, a pulsator washing machine, a washer-dryer, etc.; in the embodiment of the present invention, the specification is launched by taking a drum washing machine as an example, and the drum washing machine comprises a shell; an outer drum 3 is arranged in the shell, and an inner drum 1 is coaxially arranged in the outer drum 3, and the axis of the inner drum 1 is horizontal or inclined upward on the drum mouth side, and the clothes to be washed are placed in the inner drum 1; a driving motor 4 is installed on the outside of the bottom of the outer drum, and the motor shaft of the driving motor 4 passes through the bottom of the outer drum and is connected to the bottom 102 of the inner drum, which is used to drive the inner drum 1 to rotate around the axis, and the rotation of the inner drum 1 drives the clothes in the drum to be lifted and thrown, so as to achieve the effect of washing the clothes.

[0038] like Figures 1 to 9 As shown, in the embodiment of the present invention, a volume adjustment component 2 is provided in the inner drum 1 of the drum washing machine, which is used to adjust the volume of the space 20 for holding clothes in the inner drum 1, so as to achieve washing and dehydration of clothes of different weights and volumes with different inner drum volumes, thereby achieving significant technical progress in reducing the washing volume and reducing water consumption; at the same time, when the washing machine is performing washing and dehydration, the inner drum 1 can be adjusted to different volumes, so as to achieve significant technical progress in adapting the volume of the inner drum 1 when the washing machine is performing different programs and improving the working efficiency of the washing machine.

[0039] In the embodiment of the present invention, the volume adjustment component 2 can adopt any structure that can change the volume 20 of the space for clothing storage inside the inner drum 1, for example, at least part of the wall surface of the inner drum 1 is set to be movable, so as to change the internal volume of the inner drum 1 by using the movable wall surface, etc. Of course, the present invention can also adopt the volume adjustment component 2 in the solution described in any one or a combination of the following embodiments.

[0040] Embodiment 1

[0041] like Figure 1 to Figure 2 As shown, this embodiment introduces a control method for a washing machine with an inner drum volume adjustment function, which includes:

[0042] S1. Get the weight of the clothes in the inner drum;

[0043] S2. The inner drum volume is set according to the weight of the clothes, and the inner drum volume is adjusted to the set inner drum volume by using the volume adjustment component;

[0044] S3. Adjust the operating parameters of the washing machine according to the weight of the clothes and the set inner drum volume.

[0045] Through the above method, the capacity of the inner drum can be adaptively adjusted for clothes of different weights, thereby achieving significant technical progress in improving the intelligence level of the washing machine and improving the washing efficiency of the washing machine; at the same time, the present invention achieves the effect of adaptively adjusting the program parameters for clothes of different weights through the above method, thereby achieving significant technical progress in significantly reducing the vibration during the operation of the washing machine, preventing the eccentric rotation of the inner drum, and improving the user experience. In particular, when the weight of the clothes processed in the inner drum is relatively low, the speed of the inner drum can be specifically reduced and the rotation time of the inner drum can be shortened, thereby achieving significant technical progress in reducing the energy consumption of the washing machine.

[0046] like Figure 1 As shown, in this embodiment, the control method of the washing machine includes the following steps:

[0047] S11. When the washing machine executes the washing program, the weight of the clothes to be washed in the inner drum is measured;

[0048] S12. According to the measured weight of the clothes, the corresponding set inner drum washing volume in the preset database is called, and the volume adjustment component adjusts the inner drum volume to the set inner drum washing volume;

[0049] S13. Adjust the working parameters of the washing program of the washing machine according to the weight of the clothes and the set washing volume of the inner drum.

[0050] In this embodiment, the working parameters of the washing machine washing program adjusted according to the weight of the clothes and the set inner drum washing volume include any one or a combination of the inner drum speed, the inner drum start-stop ratio, and the inner drum rotation time; preferably, the washing machine preset database stores inner drum speed setting values, inner drum start-stop ratio setting values, and inner drum rotation time setting values ​​corresponding to combinations of different clothing weights and different set inner drum washing volumes, which are used for the washing machine to call when executing the washing program.

[0051] like Figure 2 As shown, in this embodiment, the control method of the washing machine includes the following steps:

[0052] S21. When the washing machine finishes the washing process and executes the dehydration process, the weight of the wet clothes in the inner drum after washing is measured;

[0053] S22. According to the measured weight of wet clothes, the corresponding set inner drum dehydration volume in the preset database is called, and the volume adjustment component adjusts the inner drum volume to the set inner drum dehydration volume;

[0054] S23. Adjust the working parameters of the washing machine's dehydration program according to the weight of the wet clothes and the set dehydration volume of the inner drum.

[0055] Through the above method, the clothes in the inner drum can be weighed and measured separately when the washing machine executes different working programs, so as to improve the control accuracy of the washing machine and achieve significant technical progress in effectively reducing the vibration eccentricity caused by the washing machine when it is working.

[0056] In this embodiment, the working parameters of the washing machine's dehydration program that are adjusted according to the weight of wet clothes and the set inner drum dehydration volume include any one or a combination of the inner drum speed, the inner drum start-stop ratio, and the inner drum rotation time; preferably, the washing machine's preset database stores inner drum dehydration speed setting values, inner drum dehydration start-stop ratio setting values, and inner drum dehydration rotation time setting values ​​that correspond one-to-one to combinations of different wet clothes weights and different set inner drum dehydration volumes, for use in being called when the washing machine executes the dehydration program.

[0057] In this embodiment, when the washing machine finishes the washing program and executes the dehydration program, the volume adjustment component adjusts the volume of the inner drum to the maximum volume; based on the measured weight of wet clothes in the inner drum and the maximum inner drum volume, the corresponding inner drum dehydration speed setting value, inner drum dehydration start-stop ratio setting value, and inner drum dehydration rotation time setting value stored in the preset database are called, and the washing machine executes the dehydration program according to the above-mentioned calling of the inner drum dehydration speed setting value, inner drum dehydration start-stop ratio setting value, and inner drum dehydration rotation time setting value.

[0058] In this embodiment, the control method of the washing machine includes the following steps:

[0059] S31. When the washing machine executes the dehydration program, the eccentricity value of the inner drum is detected;

[0060] S32. When the eccentricity value of the inner cylinder reaches a preset value, the volume adjustment component is used to adjust the volume of the inner cylinder to reduce the set volume.

[0061] Through the above method, the volume of the inner drum can be adaptively adjusted in real time during the dehydration process of the washing machine, thereby achieving a significant technical progress in further reducing the eccentric vibration problem of the inner drum during the dehydration process.

[0062] like Figure 3 As shown, in this embodiment, the control method of the washing machine includes the following steps:

[0063] S301. When the washing machine executes the dehydration program, the eccentricity value of the inner drum is detected in real time;

[0064] S302. When the eccentricity value of the inner cylinder reaches a preset value, the volume adjustment component is used to adjust the volume of the inner cylinder to reduce the set volume;

[0065] S303. After the set time is reached, it is determined again whether the eccentricity value of the inner drum still reaches the preset value; if not, the volume adjustment component is used to adjust the volume of the inner drum to increase the set volume; if so, the inner drum continues to rotate and dehydrate.

[0066] Preferably, when the eccentricity value of the inner cylinder is determined to be less than the preset value for n2 consecutive times, the volume adjustment component is used to adjust the volume of the inner cylinder to increase the set volume;

[0067] Preferably, when it is determined that the eccentricity value of the inner cylinder is greater than the preset value for n1 consecutive times, the volume adjustment component is used again to adjust the volume of the inner cylinder to reduce the set volume.

[0068] In this embodiment, the control method of the washing machine includes the following specific steps:

[0069] Step S101. When the washing machine executes a washing program, the weight of the clothes to be washed in the inner drum is measured;

[0070] Step S102. The corresponding set inner drum washing volume in the preset database is called according to the measured laundry weight, and the volume adjustment component adjusts the inner drum volume to the set inner drum washing volume;

[0071] Step S103. Based on the weight of the clothes and the set inner drum washing volume, call the inner drum speed setting value, the inner drum rotation stop ratio setting value, and the inner drum rotation time setting value corresponding to the combination of the weight of the clothes and the set inner drum washing volume stored in the preset database of the washing machine;

[0072] Step S104. The washing machine executes the washing program according to the called inner drum speed setting value, inner drum rotation-stop ratio setting value, and inner drum rotation time setting value;

[0073] Step S105. When the washing machine finishes the washing process and executes the dehydration process, the weight of the wet clothes in the inner drum after washing is measured;

[0074] Step S106. According to the measured weight of wet clothes, the corresponding set inner drum dehydration volume in the preset database is called, and the volume adjustment component adjusts the inner drum volume to the set inner drum dehydration volume;

[0075] Step S107. Based on the weight of the wet clothes and the set inner drum dehydration volume, call the inner drum dehydration speed setting value, the inner drum dehydration start-stop ratio setting value, and the inner drum dehydration rotation time setting value corresponding to the combination of the weight of the wet clothes and the set inner drum dehydration volume stored in the preset database of the washing machine;

[0076] Step S108. The washing machine executes the dehydration program according to the called inner drum dehydration speed setting value, the inner drum dehydration start-stop ratio setting value, and the inner drum dehydration rotation time setting value;

[0077] Step S109. When the washing machine executes the dehydration process, the eccentricity value of the inner drum is detected in real time;

[0078] Step S110. When the eccentricity value of the inner cylinder reaches a preset value, the volume adjustment component is used to adjust the volume of the inner cylinder to reduce the set volume;

[0079] Step S111. The inner drum continues to perform the dehydration process;

[0080] Step S112. After the volume adjustment component adjusts the volume of the inner cylinder to the set time, it is determined again whether the detected eccentricity value of the inner cylinder still reaches the preset value; if so, step S113 is executed; if not, step S115 is executed;

[0081] Step S113. Determine whether the eccentricity value of the inner cylinder reaches the preset value for n1 consecutive times; if so, execute step S114; if not, execute step S111;

[0082] Step S114. Use the volume adjustment component again to adjust the volume of the inner cylinder to reduce the set volume, and execute step S111;

[0083] Step S115. Determine whether the eccentricity value of the inner cylinder is less than the preset value for n2 consecutive times; if so, execute step S116; if not, execute step S111;

[0084] Step S116. Using the volume adjustment component to adjust the volume of the inner cylinder to increase the set volume, and executing step S111;

[0085] Step S117: until the dehydration completion condition is met, the dehydration is completed.

[0086] In this embodiment, n1 and n2 in the above steps are positive integers; preferably, n1 is 2; n2 is 3.

[0087] Embodiment 2

[0088] like Figures 4 to 6 As shown, this embodiment introduces a washing machine, including an inner drum 1, which has a space inside for clothes to be put in from the inner drum mouth 103; a volume adjustment component 2 is provided in the inner drum 1 for adjusting the volume of the clothes holding space 20 in the inner drum 1; the control method described in the above embodiment 1 is used to process the put-in clothes.

[0089] In this embodiment, the volume adjustment component 2 includes:

[0090] The piston plate 201 is disposed in the inner cylinder 1, dividing the inner cylinder 1 into two parts, the front part 202 and the rear part 203; the part between the piston plate 201 and the inner cylinder opening 103 constitutes the clothing holding space 20;

[0091] The driving structure 204 has a telescopic end that can be telescopically moved along the axial direction of the inner cylinder. The telescopic end is connected to the piston plate 201 and is used to push the piston plate 201 to move axially along the inner cylinder 1 and adjust the volume of the clothing holding space 20.

[0092] In this embodiment, the piston plate 201 is arranged parallel to the bottom 102 of the inner drum, and the outer periphery of the piston plate 201 is connected to the inner drum wall 101, so that the piston plate 201 divides the interior of the inner drum 1 into a front part 202 and a rear part 203 separated from each other, and the front part 202 is connected to the outside through the inner drum opening 103, so that the user can put the clothes to be washed into the front part 202 or take them out from the front part 202 from the inner drum opening 103, so that the front part 202 directly constitutes a space 20 for holding clothes.

[0093] In this embodiment, the driving structure 204 can be any existing structure that can drive the piston plate 201 to move forward and backward along the axis of the inner cylinder 1, for example: a piston cylinder, the piston cylinder is arranged coaxially with the axis of the inner cylinder 1 and is at least partially located in the rear part 203 of the inner cylinder 1, the piston cylinder has a fixed cylinder body and a retractable piston rod, the piston cylinder passes through the bottom 102 of the inner cylinder, the end of the fixed cylinder body located outside the inner cylinder 1 is connected to the bottom 102 of the outer cylinder, and the end of the piston rod located inside the inner cylinder 1 is connected to the piston plate 201, so that the end of the piston rod is driven to produce telescopic movement in the form of medium flowing into or out of the piston cylinder, thereby driving the piston plate 201 to produce forward and backward movement along the axial direction of the inner cylinder 1, thereby achieving the effect of adjusting the volume of the clothing holding space 20 formed by the front part 202 of the inner cylinder 1.

[0094] Of course, the driving structure 204 can also adopt other existing structures that can push the piston plate 201 to move, for example: an airbag 21, the airbag 21 is arranged at the rear part 203 of the inner tube 1, and the front and rear sides of the airbag 21 are respectively connected to the piston plate 201 and the inner tube bottom 102; the airbag 21 has an air vent 214, and the air vent 214 is connected to a two-way air pump 220. The two-way air pump 220 can supply air to the airbag 21 through the air vent 214 or discharge the gas in the airbag 21, so as to achieve the effect of controlling the expansion or contraction movement of the airbag 21, thereby achieving the effect of the expanded airbag 21 driving the piston plate 201 to move toward the inner tube mouth 103 to reduce the volume of the clothing holding space 20 or the contracted airbag 21 driving the piston plate 201 to move toward the inner tube bottom 102 to expand the volume of the clothing holding space 20 (not indicated in the drawings).

[0095] like Figures 4 to 6As shown, in this embodiment, in order to guide the piston plate 201 to move only in the axial direction in the inner cylinder 1, a guide rail can be set on the inner cylinder wall 101, and the guide rail is set on the cylinder wall 101 along the axial direction of the inner cylinder 1. The outer periphery of the piston plate 201 is provided with a radially protruding slider, and the radially protruding slider is correspondingly inserted into the guide rail to achieve a sliding connection between the piston plate 201 and the guide rail, thereby ensuring that the piston plate 201 can only be displaced along the axial direction of the inner cylinder. Preferably, a plurality of lifting portions 23 arranged at intervals are provided on the inner cylinder wall 101, and the lifting portions 23 extend in a direction parallel to the axial direction of the inner cylinder 1, and the lifting portions 23 protrude radially from the inner cylinder wall 101 into the cylinder to form strips; the outer periphery of the piston plate 201 is provided with slots for corresponding insertion of the lifting portions 23, so that the piston plate 201 can only slide back and forth along the axial direction of the inner cylinder 1 under the limiting action of the lifting portions 23, thereby directly forming a guide rail structure with the lifting portions 23 provided on the inner wall of the inner cylinder 1, thereby achieving the effect of limiting the movement of the piston plate 201.

[0096] In this embodiment, the volume regulating assembly 2 may also have the structure of the volume regulating assembly 2 described in the following second embodiment, so that the inner drum 1 of the washing machine has the structure of the volume regulating assembly 2 described in the above second and third embodiments at the same time.

[0097] Embodiment 3

[0098] like Figures 7 to 9 As shown, this embodiment introduces a washing machine, including an inner drum 1, which has a space inside for clothes to be put in from the inner drum mouth 103; a volume adjustment component 2 is provided in the inner drum 1 for adjusting the volume of the clothes holding space 20 in the inner drum 1; the control method described in the above embodiment 1 is used to process the clothes put into the inner drum 1.

[0099] In this embodiment, the volume adjustment component 2 includes an airbag structure; at least a portion of the inner wall of the inner tube 1 is composed of an airbag 21, and the ventilation hole 214 of the airbag 21 is connected to the ventilation structure 22. The ventilation structure 22 is used to inlet / exhaust air into the airbag 21, and the airbag 21 expands / contracts into the inner tube 1. The internal volume of the inner tube 1 is adjusted to decrease / increase, thereby achieving an effect of adjusting the size of the volume of the clothing holding space 20 formed by the internal space of the inner tube 1.

[0100] By arranging an airbag 21 that can expand or contract inside the inner drum 1, the internal space of the inner drum 1 is adjusted by using the telescopic airbag 21, so as to achieve the effect of adaptively adjusting the volume of the inner drum 1, thereby achieving a significant technical progress in reducing the water consumption of the washing machine; at the same time, through the above-mentioned arrangement, the capacity of the inner drum 1 can be adaptively adjusted when washing clothes of different volumes and weights, thereby achieving a significant technical progress in improving the washing effect of the washing machine.

[0101] In this embodiment, the airbag 21 can be laid at any position of the inner wall of the inner tube, for example: any one or a combination of the inner tube cylindrical wall 101, the side flange of the inner tube bottom 102, the side flange of the inner tube mouth 103, and the lifting part 23 provided inside the inner tube 1, so as to achieve the effect of adjusting the volume of the clothing holding space 20 constituted by the internal space of the inner tube 1 by utilizing the airbag 21 to expand or contract into the inner tube 1.

[0102] In this embodiment, a double-layer airbag 210 is laid on the inner wall of the inner tube 1; the double-layer airbag 210 includes a first side portion 211 and a second side portion 212 which are laid overlappingly, the outer peripheral portions of the first side portion 211 and the second side portion 212 are correspondingly overlapped and fixedly connected, and the gap space between the first side portion 211 and the second side portion 212 constitutes a cavity for gas to enter or flow out; the first side portion 211 of the double-layer airbag 210 is fixedly connected to the tube wall 101, and the second side portion 212 is freely and telescopically arranged, and the gap between the first side portion 211 and the second side portion 212 of the double-layer airbag 210 constitutes a containing space for gas to enter or flow out; at least the second side portion 212 of the double-layer airbag 210 is made of a material that can produce elastic deformation, so that when air is taken in / out of the double-layer airbag 210, the second side portion 212 of the double-layer airbag 210 expands / contracts toward the inner tube 1.

[0103] Preferably, the area of ​​the second side portion 212 can be larger than that of the first side portion 211 , so that the second side portion 212 can expand outwardly by utilizing the wrinkles generated by the larger area, so as to adjust the internal volume of the inner tube 1 .

[0104] In this embodiment, at least one lifting portion 23 protruding radially inward is provided on the inner side of the cylindrical wall 101 of the inner tube 1 , and a double-layer airbag 210 is laid on the outer wall of the lifting portion 23 facing the inner side of the inner tube 1 .

[0105] In the present embodiment, a plurality of lifting portions 23 are arranged around the inner side of the cylindrical wall 101 of the inner tube 1 at equal intervals, and each lifting portion 23 extends in a direction parallel to the axis of the inner tube 1; each lifting portion 23 is provided with a double-layer airbag 210 on one side facing the inner side of the inner tube 1; further preferably, a side surface of the lifting portion 23 protruding toward the inner side of the inner tube 1 is an arc-shaped surface whose height gradually narrows from the middle to both sides toward the inner tube wall 101 along the circumference of the inner tube 1; the first side portion 211 of the double-layer airbag 210 is laid on the outer wall side of the arc-shaped surface, and the outer periphery of the first side portion 211 and the second side portion 212 of the double-layer airbag 210 is sealed and connected, and the connected portion is fixedly connected to the joint of the lifting portion 23 and the tube wall 101.

[0106] Preferably, the outer peripheries of the first side portion 211 and the second side portion 212 of the double-layer airbag 210 are connected via a connecting portion 213, and the connecting portion 213 is annular. The inner periphery of the annular connecting portion 213 is sealedly connected to the outer periphery of the first side portion 211, and the outer periphery is sealedly connected to the outer periphery of the second side portion 212; the connecting portion 213 is located at the periphery of the lifting portion 23, and the connecting portion 213 is laid on the inner cylinder wall 101 at the periphery of the lifting portion 23 and is fixedly connected to the inner cylinder wall 101, so that the gap space of the double-layer airbag 210 constitutes a partial ring with a certain thickness, and the thickness can be telescopically changed, so as to better achieve the effect of expanding or contracting the volume of the double-layer airbag 210 when air is taken in or exhausted.

[0107] In this embodiment, the ventilation structure 22 includes a two-way air pump 220 , which is connected to the vent 214 of the airbag 210 via a pipeline 221 and is used to introduce air into the airbag 210 / discharge the gas in the airbag 210 .

[0108] In this embodiment, an installation cavity 230 is provided on the inner tube 1, and the two-way air pump 220 is arranged in the installation cavity 230. The installation cavity 230 has a first opening 231 connected to the interior of the inner tube 1. The vent 214 of the double-layer airbag 210 in the inner tube 1 passes through the first opening 231 and extends into the installation cavity 230. The ventilation port of the two-way air pump 220 is connected to the vent of the double-layer airbag 210 through the pipeline 221; preferably, a sealing ring is provided at the first opening 231 of the installation cavity 230 to fill the gap between the vent 214 and the installation cavity 230, so as to isolate the water from flowing into the installation cavity 230.

[0109] The two-way air pump 220 has two working states; in the first working state, the ventilation port of the two-way air pump 220 outputs airflow to the outside, and the output airflow is introduced into the double-layer airbag 210 through the pipeline 221, thereby achieving the effect of introducing air into the double-layer airbag 210; in the second working state, the ventilation port of the two-way air pump 220 draws airflow into the installation cavity 230, and the gas in the double-layer airbag 210 is drawn into the installation cavity 230 through the pipeline 221, thereby achieving the effect of exhausting the double-layer airbag 210.

[0110] In this embodiment, the installation cavity 230 has a second opening 232 connected to the outside of the inner cylinder 1, which is used to exchange air with the outside of the inner cylinder 1, provide intake airflow for the two-way air pump 220, or discharge the exhaust airflow of the two-way air pump 220; a breathable valve is provided at the second opening 232, which is used to control the second opening 232 to only allow airflow to flow through, and not allow water to flow into the installation cavity 230. By providing the second opening 232 connected to the outside of the inner cylinder 1 on the installation cavity 230, the breathable valve provided on the second opening 232 can be used to achieve the effect of balancing and adjusting the air pressure in the installation cavity 230, thereby effectively preventing the occurrence of an imbalance in the air pressure in the internal space of the lifting portion 23 of the inner cylinder 1.

[0111] In this embodiment, a lifting part 23 is provided on the inner cylinder wall 101, and the interior of the lifting part 23 is hollow to form an installation cavity 230, and a two-way air pump 220 is provided in the installation cavity 230; preferably, a two-way air pump 220 is provided inside each lifting part 23, and each two-way air pump 220 is connected to the vent 214 of the double-layer airbag 210 laid on the outer wall of the corresponding lifting part 23 in a one-to-one correspondence, and the two-way air pump 220 is fixedly installed on the inner cylinder wall 101, and the second opening 232 is provided on the inner cylinder wall 101 for the lifting part 23 to be installed. By providing the two-way air pump 220 and the double-layer airbag 210 on each lifting part 23 in a one-to-one correspondence, each lifting part 23 of the inner cylinder 1 is arranged to balance each other, which effectively improves the balance performance of the structure of the inner cylinder 1 and reduces the occurrence of eccentric imbalance when the inner cylinder 1 rotates.

[0112] In this embodiment, the airbag 21 can utilize the elastic ductility of its own material to achieve the purpose of expansion or contraction deformation toward the inside of the inner tube 1; at the same time, in order to further improve the adjustment range of the deformation of the airbag 21 after air is taken in or out of the airbag 21, at least part of the airbag 21 can have folds that can produce telescopic deformation, and the folds can be used to increase the deformation rate of the airbag 21, thereby increasing the deformation of the airbag 21 after air is taken in or out.

[0113] In this embodiment, the volume adjustment component 2 may also have the structure of the volume adjustment component 2 in the above embodiment 1, so that the inner drum 1 of the washing machine has the structure of the volume adjustment component 2 described in the above embodiments 2 and 3 at the same time.

[0114] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modify the technical contents suggested above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the solution of the present invention.

Claims

1. An inner cylinder structure, characterized in that: An airbag is provided on at least part of the inner wall of the inner tube, and the ventilation hole of the airbag is connected to the ventilation structure. The ventilation structure is used to inlet or exhaust air into the airbag, and the airbag expands or contracts into the inner tube, and the internal volume of the inner tube is adjusted to decrease or increase.

2. An inner cylinder structure according to claim 1, characterized in that: The inner wall of the inner tube is paved with a double-layer airbag, which includes a first side portion and a second side portion that are overlapped, the outer peripheral portions of the first side portion and the second side portion overlap and are fixedly connected, and the gap space between the first side portion and the second side portion constitutes a cavity for gas to enter or flow out.

3. An inner cylinder structure according to claim 2, characterized in that: The first side portion of the double-layer airbag is fixedly connected to the tube wall, and the second side portion is freely and telescopically arranged. The gap between the first side portion and the second side portion of the double-layer airbag constitutes an accommodating space for gas to enter or flow out. At least the second side portion of the double-layer airbag is made of a material that can produce elastic deformation, so that when air enters / exhales the double-layer airbag, the second side portion of the double-layer airbag expands or contracts toward the inner tube.

4. The inner cylinder structure according to claim 2, characterized in that: At least one lifting portion protruding radially inward is arranged on the cylindrical wall of the inner cylinder, and a double-layer air bag is laid on one side of the lifting portion facing the inner part of the inner cylinder.

5. An inner cylinder structure according to claim 4, characterized in that: A plurality of lifting parts are arranged around the cylindrical wall of the inner tube at equal intervals, each lifting part extends in a direction parallel to the axis of the inner tube and radially protrudes toward the inner tube; a double-layer air bag is laid on one side of each lifting part facing the inner tube; Preferably, the side surface of the lifting portion protruding toward the inside of the inner tube is an arc-shaped surface whose height gradually narrows from the middle to both sides along the circumference of the inner tube toward the wall of the inner tube; the first side portion of the double-layer airbag is laid on the outer wall side of the arc-shaped surface, and the outer periphery of the first side portion and the second side portion of the double-layer airbag are sealed and connected, and the connected portion is fixedly connected to the joint between the lifting portion and the tube wall.

6. An inner cylinder structure according to any one of claims 1 to 5, characterized in that: The ventilation structure comprises a two-way air pump; the ventilation port of the two-way air pump is connected with the ventilation port of the airbag through a pipeline, and is used for taking air into the airbag or discharging the gas in the airbag.

7. An inner cylinder structure according to claim 6, characterized in that: The inner tube is provided with an installation cavity, the two-way air pump is arranged in the installation cavity, the installation cavity has a first opening connected with the inner tube, the vent of the double-layer airbag passes through the first opening and extends into the installation cavity, and the ventilation port of the two-way air pump is connected with the vent of the double-layer airbag; Preferably, a sealing ring is provided at the first opening of the installation cavity to fill the gap between the first opening and the vent, so as to prevent water from flowing into the installation cavity.

8. An inner cylinder structure according to claim 7, characterized in that: The installation cavity has a second opening communicated with the outside of the inner cylinder. A breathable valve is provided at the second opening to control the second opening so that only air can flow through but no water can flow into the installation cavity.

9. An inner cylinder structure according to claim 7 or 8, characterized in that: A lifting portion is provided on the inner cylinder wall and radially protrudes toward the inner cylinder. The interior of the lifting portion is hollow to form an installation cavity. The bidirectional air pump is arranged in the installation cavity inside the lifting portion. Preferably, a plurality of lifting parts are arranged at equal intervals around the inner side of the cylindrical wall of the inner tube, and each lifting part is provided with a double-layer airbag on the side facing the inner side of the inner tube; a two-way air pump is provided inside each lifting part, and each two-way air pump is connected one by one with the ventilation port of the double-layer airbag provided on the outer wall of the corresponding lifting part.

10. A washing machine, characterized in that: It has the inner cylinder structure as described in any one of claims 1 to 9.

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