A washing machine and a drum thereof

Abstract

The present application provides a kind of inner drum, including inner drum main body, the wrinkle part for providing the deformation of inner drum main body with margin is equipped on the inner drum wall of inner drum main body, the outer periphery of the radial section of inner drum main body is set as by the arc line of different curvatures, and / or, at least part is surrounded by straight line and is formed into ring shape.The present application is by the outer periphery wall of inner drum main body is set as the column structure of non-circular radial section, on the one hand, can make inner drum and shell fast positioning, so that user can find the installation angle of inner drum quickly when installing inner drum, make inner drum drain and outer drum drain accurate butt joint, improve the installation efficiency and installation accuracy of inner drum, on the other hand, can when inner drum shrink, make the inner drum wall at different angles to clothes produce different extrusion force, improve the extrusion effect to clothes, improve the user's experience.The present application also provides a kind of washing machine installed with above-mentioned inner drum.

Description

Technical Field

[0001] This invention belongs to the technical field of clothing processing equipment, specifically relating to an inner tub and a washing machine equipped with the inner tub. Background Technology

[0002] Washing machines are common household appliances used for washing clothes. The washing tub module is located inside the machine. By rotating the washing tub module, clothes are washed, providing great convenience for people's daily lives. The washing tub module of a washing machine usually consists of an inner tub and an outer tub. A pulsator is located at the bottom of the inner tub. During washing, the rotation of the pulsator agitates the clothes and water inside the inner tub, achieving the purpose of washing.

[0003] When a washing machine washes clothes, the water in the washing tub module is located inside the inner tub and also between the inner and outer tubs. Over time, dirt and grime between the inner and outer tubs can breed a large number of bacteria. To improve the hygiene of washing machines, washing machines with perforated inner tubs have appeared on the market. While the emergence of washing machines with perforated inner tubs has improved hygiene and safety to some extent, cross-contamination between different types of clothing still makes many users wary of the safety of the washing machine. In addition, the spin-drying scheme of existing washing equipment often uses the synchronous, high-speed rotation of the inner tub and the pulsator to separate the water from the laundry under the action of centrifugal force. This spin-drying method is prone to generating significant vibration and noise, especially when the laundry is not uniformly distributed in the inner tub. The high-speed rotation of the inner tub during spin-drying can cause abnormal vibration of the washing machine, producing loud noise and potentially causing significant damage to the laundry.

[0004] To avoid cross-contamination between different types of clothing and to reduce vibration and noise during spin-drying, manufacturers have developed a washing machine with a replaceable drum and negative pressure spin-drying capability. Users can install a specific inner drum inside the washing machine. During spin-drying, the negative pressure system draws water and air from the inner drum, causing it to contract and the inner walls to compress the clothes, thus completing the spin-drying process.

[0005] However, existing washing machines with replaceable drums and negative pressure spin-drying capabilities suffer from poor positioning during inner drum installation and poor compression of clothes when the inner drum shrinks, severely impacting the user experience.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] This invention provides an inner tub by setting the radial cross-section of the inner tub body to be an annular shape formed by arcs of different curvatures and / or at least partially by straight lines; that is, setting the outer peripheral wall of the inner tub body to be a cylindrical structure with a non-circular radial cross-section.

[0008] On the one hand, it enables quick positioning between the inner tub and the outer shell, allowing users to quickly find the correct installation angle for the inner tub. On the other hand, when the inner tub retracts, it allows the inner tub wall at different angles to exert different squeezing forces on the clothes, improving the squeezing effect on the clothes and solving the problems of poor positioning effect and poor squeezing effect on clothes when the inner tub retracts in the existing inner tub installation process.

[0009] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0010] An inner tub includes an inner tub body, and the inner tub wall of the inner tub body is provided with pleats to provide allowance for deformation of the inner tub body.

[0011] The outer periphery of the radial section of the inner barrel body is set as an annular shape by arcs with different curvatures and / or, at least partially by straight lines.

[0012] Furthermore, the inner tub body is designed to be symmetrical from left to right; the inner tub body is symmetrical with respect to the axial bisecting planes of its front and rear extensions.

[0013] Furthermore, the outer periphery of the radial section of the inner barrel body is surrounded by arcs of varying curvatures, including those with progressively increasing curvature:

[0014] The first arc-shaped section is located on the front side of the inner barrel body;

[0015] The second arc-shaped section is located on the rear and left and right sides of the inner barrel body;

[0016] The third arc segment connects the first and second arc segments.

[0017] Furthermore, it also includes a fourth arc segment, which is set between the two ends of the third arc segment and the second arc segment, and the curvature of the fourth arc segment is less than the curvature of the second arc segment;

[0018] Preferably, the second arc segment is a semicircle.

[0019] Furthermore, the top of the inner barrel body is provided with a rigid barrel opening positioning component, and the outer periphery of the radial section of the barrel opening positioning component is set to be annular, surrounded by arcs with different curvatures.

[0020] And / or, the bottom of the inner bucket is provided with a rigid bucket bottom connector, and the outer periphery of the radial section of the bucket bottom connector is set to be annular, surrounded by arcs with different curvatures.

[0021] Furthermore, the inner circumference of the radial section of the inner tub body is parallel to the outer circumference, or the inner circumference of the radial section of the inner tub body is set to be circular.

[0022] Furthermore, the inner tub body is equipped with multiple sections for washing different types of clothing and / or for washing different users' clothing, and each inner tub body is equipped with different identification marks.

[0023] Furthermore, identify the color and / or pattern of the inner barrel body;

[0024] The inner drum body is of different colors and / or used for washing different types of clothes, and / or for washing different users' clothes.

[0025] Furthermore, a pulsator is installed on the bottom of the inner tub of the inner tub body;

[0026] The pulsators inside the inner tub used for washing different types of clothes have different shapes.

[0027] The present invention also discloses a washing machine, including a housing, and a receiving cavity provided inside the housing, the shape of which is adapted to the shape of the inner tub described above;

[0028] The inner tub is detachably installed inside the receiving cavity and magnetically connected to the inner wall of the receiving cavity;

[0029] It also includes a negative pressure assembly connected to the inner tub for sucking out water and air from the inner tub.

[0030] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0031] 1. This invention sets the radial cross-section of the outer peripheral wall of the inner tub body as an annulus formed by arcs with different curvatures and / or at least partially by straight lines. That is, the outer peripheral wall of the inner tub body is set as a cylindrical structure with a non-circular radial cross-section. On the one hand, this enables quick positioning between the inner tub and the outer shell, allowing users to quickly find the correct installation angle of the inner tub when installing it, ensuring precise alignment between the drain outlet of the inner tub and the drain outlet of the outer tub, thus improving the installation efficiency and accuracy of the inner tub. On the other hand, when the inner tub contracts, the inner tub wall at different angles exerts different squeezing forces on the clothes, improving the squeezing effect on the clothes and enhancing the user experience.

[0032] 2. By setting the rear side of the inner tub body as a semi-circular second arc segment and the front side of the inner tub body as including a first arc segment and a fourth arc segment with smaller curvature, the present invention can ensure that the inner tub has a larger volume and facilitate users to load clothes from the front and left and right sides of the washing machine, thereby further improving the user experience.

[0033] 3. By setting the inner tub body for washing different types of clothes and / or the inner tub body for washing different users' clothes to different colors, this invention enables one person to use one tub or one person to use multiple tubs. Users can change the inner tub as needed, fundamentally avoiding cross-infection.

[0034] 4. This invention uses different shapes of impellers inside the inner tub body for washing different types of clothes, which makes the shape of the impeller more adaptable to the types of clothes being washed, improves the washing effect of the washing machine, and at the same time avoids damaging the clothes.

[0035] At the same time, the present invention has a simple structure, significant effects, and is suitable for widespread use.

[0036] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0037] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0038] Figure 1 This is a schematic diagram of the structure of the washing machine in an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the washing machine when the door is open, according to an embodiment of the present invention.

[0040] Figure 3 This is a schematic diagram of the internal structure of the machine body in an embodiment of the present invention;

[0041] Figure 4 This is an exploded view of the bucket module in an embodiment of the present invention;

[0042] Figure 5 This is a schematic diagram of the structure of the drain valve assembly in an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of the assembly structure of the second bracket and the base in an embodiment of the present invention;

[0044] Figure 7 This is a top view of the inner barrel in an embodiment of the present invention;

[0045] Figure 8 This is a cross-sectional view of the inner barrel in an embodiment of the present invention;

[0046] Figure 9 This is an embodiment of the present invention. Figure 8 Enlarged view of point A in the middle;

[0047] Figure 10 This is an embodiment of the present invention. Figure 8 Enlarged view of point B in the middle;

[0048] Figure 11 This is a schematic diagram of the sealing seat in an embodiment of the present invention;

[0049] Figure 12 This is a schematic diagram of the door structure in an embodiment of the present invention;

[0050] Figure 13 This is an exploded view of the laser water level detection module in an embodiment of the present invention;

[0051] Figure 14 This is an internal system diagram of the washing machine in an embodiment of the present invention;

[0052] Figure 15 This is a flowchart of the control method for a washing machine in an embodiment of the present invention.

[0053] Description of main components in the diagram:

[0054] 1. Body; 101. Shell; 1011. Shell body; 1012. Base; 1013. Second reinforcing rib; 102. Clothing inlet; 103. Door lock; 104. Water inlet pipe; 1041. Water inlet valve; 105. Instant heating module; 107. Air pipe; 1071. Vent valve; 110. Drain pipe; 111. Drain valve; 1111. Connector; 11110. Radial protrusion; 1112. Sealing seat; 11121. First seat body; 11122. Second seat body; 11123. Conical part; 11124. Third sealing ridge; 1113. Elastic element; 11 14. Valve plug; 113. Bucket support; 1130. Fixing part; 1131. First support; 1132. Second support; 1133. First connecting plate; 1134. Second connecting plate; 2. Door body; 203. Sealing part; 204. Water inlet; 205. Vent; 206. Mounting port; 3. Inner bucket; 300. Inner bucket opening; 301. Inner bucket body; 302. Bucket bottom connector; 3021. First connector; 30211. First groove; 3022. Second connector; 3024. First sealing ridge; 303. Bucket opening positioning part; 3031. Flat part; 3034. 1. Positioning component; 3035. Second positioning component; 305. Inner tub drain outlet; 3051. Mounting rib; 3052. Sealing rib; 307. Mounting part; 3071. First mounting part; 3072. Second mounting part; 3073. Third mounting part; 309. Pleated part; 310. Inner tub wall; 311. Folded edge; 3111. First folded edge; 3112. Second folded edge; 3113. Third folded edge; 3114. Second sealing protrusion; 4. Outer tub; 401. Outer tub drain outlet; 402. First reinforcing rib; 403. Pre-installation positioning post; 404. Mounting threaded post; 5. Impeller; 6. Magnetic 7. Iron; 701. Negative pressure component; 702. Temporary storage chamber; 705. Air pump; 706. First mounting ear; 707. Second mounting ear; 9. Silencer; 10. Magnetic component; 11. Fixing plate; 12. Drainage opening component; 121. Push rod; 122. Flow guiding structure; 131. First arc segment; 132. Second arc segment; 133. Third arc segment; 134. Fourth arc segment; 14. Laser water level detection module; 141. Housing; 1411. Limiting claw; 1412. Guide ridge; 1413. Ear plate; 142. PCB board; 1421. Laser detection element; 143. Sealing ring.

[0055] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0056] To make the objectives, 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 with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0057] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0059] Example 1

[0060] like Figures 1 to 14 As shown in the embodiment of the present invention, a washing machine is introduced, including a housing 101, and an inner tub 3 is installed inside the housing 101. The inner tub 3 is a tub without holes and is detachably installed inside the housing 101.

[0061] By detachably installing the inner tub 3 inside the housing 101, a single washing machine can be equipped with multiple inner tubs 3, facilitating the replacement of the inner tubs 3. During use, users can use one tub per person or multiple tubs per person, configuring the number of inner tubs 3 according to their needs to achieve separate washing, preventing cross-contamination when washing different clothes. At the same time, it eliminates the need for multiple washing machines, saving costs.

[0062] In this embodiment, the different garments include different types of garments and different user garments. The inner tub 3 is provided with multiple compartments for washing different types of garments and / or different user garments, and each inner tub body 301 is provided with different identification marks. In this embodiment, the identification marks can be the color of the inner tub body 301, or they can be different structures set on the inner tub body 301, as long as they can achieve the effect of differentiation.

[0063] This embodiment uses the color of the inner barrel body 301 as an example to illustrate the identification mark in detail.

[0064] Preferably, in this embodiment, the identification mark may include a first identification mark for distinguishing the inner tub 3 for washing different users' clothes, and a second identification mark for distinguishing the inner tub 3 for washing different types of clothes.

[0065] The first identification mark and the second identification mark can be in any form.

[0066] In some possible embodiments, the first identification mark and the second identification mark are the same.

[0067] In this embodiment, the inner tub 3 used for washing different users' clothes and the inner tub 3 used for washing different types of clothes can be set to different colors. For example, the inner tub 3 used by the first user for washing small items of clothing can be set to red, the inner tub 3 used by the first user for washing other types of clothes can be set to green, the inner tub 3 used by the second user for washing small items of clothing can be set to yellow, and the inner tub 3 used by the second user for washing other types of clothes can be set to blue. It is only necessary to be able to distinguish between the different types of clothes used by different users.

[0068] In some possible embodiments, the second identification mark can also be set as a color, and the first identification mark can be set as a shade of color. For example, the inner tub 3 for the first user to wash small items of clothing can be set to dark blue, and the inner tub 3 for the first user to wash other clothes can be set to dark gray; the inner tub 3 for the second user to wash small items of clothing can be set to light blue, and the inner tub 3 for the second user to wash other clothes can be set to light gray.

[0069] In some possible embodiments, the second identification mark can be set to the overall color of the inner tub body 301, and the first identification mark can be set to a pattern on the inner tub body 301 that is different from the overall color. For example, the inner tub 3 used by the first user for washing small items of clothing can be set to blue, the inner tub 3 used by the first user for washing other clothes can be set to gray, the inner tub 3 used by the second user for washing small items of clothing can be set to blue with yellow patterns, and the inner tub 3 used by the second user for washing other clothes can be set to gray with yellow patterns.

[0070] Preferably, in this embodiment, the inner tub body 301 used for washing different users' clothes has different patterns, and the inner tub body 301 used for washing different types of clothes has different overall colors, wherein the color of the pattern is different from the overall color of the inner tub body 301.

[0071] Preferably, in this embodiment, the inner tub body 301 includes an inner tub bottom and an inner tub wall 310. A pulsator 5 is installed on the inner tub bottom of the inner tub body 301. The motor shaft of the washing machine is connected to the pulsator 5 for transmission, driving the pulsator 5 to rotate and wash the clothes in the inner tub 3.

[0072] Preferably, in this embodiment, the pulsators 5 inside the inner tub body 301 used for washing different types of clothes have different shapes. This allows the shape of the pulsators 5 to be more adaptable to the types of clothes being washed, improving the washing effect of the washing machine while preventing damage to the clothes.

[0073] Preferably, in this embodiment, the color of the inner tub body 301 can be used as the first identification mark for distinguishing the inner tub 3 for washing different users' clothes, and the shape of the impeller 5 can be used as the second identification mark for distinguishing the inner tub 3 for washing different types of clothes.

[0074] For example, the impeller 5 of the inner tub 3 used for washing small items of clothing can be set to a spherical shape, the impeller 5 used for washing large items of clothing can be set to a disc shape, and the impeller 5 used for washing shoes can be set to a shoe brush.

[0075] In this embodiment, the inner tub 3 is detachably installed inside the housing 101 of the washing machine, and a positioning structure is provided between the inner tub 3 and the housing 101.

[0076] The inner barrel body 301 includes an inner barrel bottom and an inner barrel wall 310. The inner barrel wall 310 extends along the setting direction and is cylindrical with openings at both the upper and lower ends. The shape of the inner barrel bottom is adapted to the lower end of the inner barrel wall 310 to close the lower end of the inner barrel wall 310. The upper end of the inner barrel wall 310 forms the inner barrel opening 300.

[0077] In this embodiment, the positioning structure is set to the shape of the inner barrel body 301.

[0078] Specifically, the outer periphery of the radial section of at least part of the inner barrel body 301 is set as an annular shape by arcs with different curvatures and / or by at least part of straight lines.

[0079] In this embodiment, by setting the radial cross-section of the outer peripheral wall of the inner tub body 301 to an annulus formed by arcs with different curvatures and / or at least partially by straight lines, that is, by setting the outer peripheral wall of the inner tub body 301 to a cylindrical structure with a non-circular radial cross-section, it is possible to facilitate the positioning between the inner tub 3 and the washing machine body 1. When installing the inner tub 3, the user can quickly find the installation angle of the inner tub 3 by using the shape of the inner tub 3, which can improve the positioning effect during the installation process of the inner tub 3, ensure that the washing machine can operate smoothly, and at the same time improve the installation efficiency and accuracy of the user when installing the inner tub 3, enabling the rapid installation of the inner tub 3 and improving the user experience.

[0080] In some possible embodiments, the inner barrel body 301 is configured as a prism with a polygonal radial cross-section.

[0081] In some possible embodiments, the inner tub body 301 is configured as a column with an axially extending plane on one side, that is, the radial section of the outer peripheral wall of the inner tub body 301 consists of a circular arc with a fixed curvature and a straight line.

[0082] In some possible embodiments, the radial section of the outer peripheral wall of the inner barrel body 301 is formed by multiple curves with the same or different curvatures and a certain number of straight lines with the same or different lengths.

[0083] In some possible embodiments, the outer periphery of the radial section of the inner barrel body 301 is surrounded by arcs of different curvatures.

[0084] Preferably, in this embodiment, the inner tub body 301 is configured to be symmetrical from left to right, and the inner tub body 301 is symmetrical with respect to the axial bisecting planes extending front and rear.

[0085] The radial section of the outer peripheral wall of the inner tub body 301 includes a first arc-shaped segment 131 disposed on the front side of the inner tub body 301 and a second arc-shaped segment 132 disposed on the rear side and left and right sides of the inner tub body 301. The curvature of the first arc-shaped segment 131 is less than the curvature of the second arc-shaped segment 132. By providing the first arc-shaped segment 131 and the second arc-shaped segment 132, on the one hand, the installation position of the inner tub 3 can be positioned, and on the other hand, it is convenient to load clothes from the front of the washing machine.

[0086] Preferably, in this embodiment, the radial cross-section of the outer peripheral wall of the inner tub body 301 further includes a third arc-shaped segment 133. Two third arc-shaped segments 133 are provided, respectively disposed on the left and right sides of the first arc-shaped segment 131 and between the second arc-shaped segment 132, allowing for a smooth transition between the first arc-shaped segment 131 and the second arc-shaped segment 132. By providing the third arc-shaped segment 133, the outer peripheral wall of the inner tub body 301 becomes smoother, while simultaneously increasing the volume of the inner tub 3.

[0087] More preferably, the radial section of the outer peripheral wall of the inner barrel body 301 further includes a fourth arc segment 134. There are two fourth arc segments 134, which are respectively connected between the third arc segment 133 and the second arc segment 132. The curvature of the fourth arc segment 134 is less than the curvature of the second arc segment 132.

[0088] In this embodiment, the second arc segment 132 is semi-circular, meaning that both ends of the second arc segment 132 extend to the middle and rear parts of the left and right sides of the inner tub body 301. Two fourth arc segments 134 smoothly transition to the front sides of the left and right ends of the second arc segment 132. That is, the fourth arc segments 134 are located at the middle and front parts of the left and right ends of the inner tub body 301, and each fourth arc segment 134 is an arc extending forward with a small curvature from the left and right ends of the second arc segment 132. The first arc segment 131 is located on the front side of the inner tub body 301 and is a horizontally extending arc with a small curvature. The third arc segment 133 is located at the left and right ends of the first arc segment 131 and smoothly transitions between the left and right ends of the first arc segment 131 and the third arc segment 133.

[0089] In a further preferred embodiment, the curvature of the first arc segment 131 is equal to the curvature of the fourth arc segment 134.

[0090] In this embodiment, by setting the rear side of the inner tub body 301 as a semi-circular second arc segment 132 and setting the front side of the inner tub body 301 as including a first arc segment 131 and a fourth arc segment 134 with smaller curvature, on the one hand, the inner tub 3 has a larger volume, and on the other hand, it is convenient for users to put clothes in from the front and left and right sides of the washing machine, further improving the user experience.

[0091] In this embodiment, the inner circumference of the radial cross-section of the inner barrel body 301 can be of any shape.

[0092] In some possible embodiments, the inner circumference of the radial section of the inner tub body 301 is set to be circular, that is, the internal space of the inner tub body 301 is a cylindrical space.

[0093] In some other possible embodiments, the inner circumference of the radial section of the inner barrel body 301 is parallel to the outer circumference, that is, the thickness of the inner barrel wall 310 is equal everywhere.

[0094] Preferably, in this embodiment, the inner circumference of the radial section of the inner barrel body 301 is parallel to the outer circumference.

[0095] In this embodiment, the washing machine further includes a negative pressure component 7 for communicating with the inner tub 3. The negative pressure component 7 includes a temporary storage chamber and an air pump. The negative pressure component 7 draws water and air from the inner tub 3, causing the soft inner tub 3 to contract inward. The inner wall of the inner tub 3 squeezes the clothes in the inner tub 3, thereby squeezing and dehydrating the clothes.

[0096] In this embodiment, by setting the inner tub wall 310 of the inner tub to have a radial cross-section formed by arcs with different curvatures and / or, at least partially, by straight lines, that is, the inner tub wall 310 in different positions of the inner tub 3 has different degrees of curvature. Therefore, during the negative pressure spin-drying process of the washing machine, the inner tub wall 310 in different positions contracts in different degrees. Specifically, the inner tub wall 310 with a smaller curvature contracts more, while the inner tub wall 310 with a larger curvature contracts less. Thus, the inner tub wall 310 in different positions exerts different intensities of pressure on the clothes, improving the squeezing effect of the inner tub 3 on the clothes.

[0097] In this embodiment, the inner barrel body 301 is at least partially made of rigid material, and the radial cross section of the portion of the inner barrel body 301 supported by rigid material is at least partially formed by arcs with different curvatures and / or at least partially by straight lines to form a ring.

[0098] The washing machine housing 101 has a receiving cavity for installing the inner tub 3. The shape of the receiving cavity is adapted to the shape of the inner tub 3. The inner tub 3 is embedded in the receiving cavity to achieve positioning between the inner tub 3 and the housing 101.

[0099] In this embodiment, a barrel opening positioning member 303 is provided on the outer wall of the inner barrel body 301 near the inner barrel opening 300. The barrel opening positioning member 303 cooperates with the shell 101 to limit the installation position of the inner barrel 3.

[0100] In this embodiment, the top of the housing 101 is provided with a clothing inlet 102, the receiving cavity of the housing 101 is adapted to the shape of the inner tub 3, and the inner tub 3 is installed inside the housing 101 from the clothing inlet 102.

[0101] The bucket opening positioning component 303 is an annular component surrounding the inner bucket opening 300. The bucket opening positioning component 303 is made of a rigid material, and its outer periphery at least partially protrudes from the outer periphery of the inner bucket wall 310. The outer periphery of the radial section of the bucket opening positioning component 303 is annular, formed by arcs of varying curvatures. A positioning opening is provided in the center of the clothing inlet 102, and the bucket opening positioning component 303 is embedded within this positioning opening, thereby ensuring that the inner bucket 3 is precisely installed within the housing 101 at a preset installation angle.

[0102] Preferably, in this embodiment, a flat portion 3031 is provided on at least one side of the outer peripheral wall of the barrel opening positioning member 303.

[0103] That is, the radial cross section of the outer peripheral wall of the bucket opening positioning member 303 is set as an annulus formed by the first arc segment 131, the second arc segment 132, the third arc segment 133 and the fourth arc segment 134. The radial cross section of the outer peripheral wall of the bucket opening positioning member 303 also includes a part composed of straight lines, which makes it easier for users to distinguish the position of the inner bucket 3.

[0104] In this embodiment, the washing machine also includes a door 2, which is connected to the housing 101 by a hinge. The hinge is located between the rear end of the door 2 and the housing 101, and the front end of the door 2 can be flipped through the hinge.

[0105] The flat portion 3031 on the barrel opening positioning member 303 is located on the rear side. When the inner barrel 3 is installed, the flat portion 3031 on the barrel opening positioning member 303 corresponds to the hinge. That is, the straight portion of the radial section of the outer peripheral wall of the barrel opening positioning member 303 is located at the middle position of the second arc segment 132.

[0106] In this embodiment, the receiving cavity includes a first receiving cavity for receiving the bucket opening positioning member 303 and a second receiving cavity for receiving the inner bucket body 301 below the bucket opening positioning member 303. The shape of the first receiving cavity is adapted to the shape of the bucket opening positioning member 303, and the bucket opening positioning member 303 is embedded in the first receiving cavity. The shape of the second receiving cavity is adapted to the shape of the inner bucket body 301 below the bucket opening positioning member 303, and the inner bucket body 301 below the bucket opening positioning member 303 is embedded in the second receiving cavity.

[0107] Preferably, in this embodiment, the inner bucket body 301 further includes a bucket bottom connector 302 made of rigid material, and the outer periphery of the radial section of the bucket bottom connector 302 is set to be annular by arcs with different curvatures.

[0108] In this embodiment, the bottom connector 302 is disposed at the bottom of the inner bucket body 301. Preferably, the bottom connector 302 constitutes the bottom of the inner bucket. The second receiving cavity has at least a partial shape that is adapted to the shape of the bottom connector 302, and is used to define the installation position of the inner bucket 3.

[0109] Preferably, in this embodiment, the inner barrel wall 310 is made of a soft material, the top of the inner barrel wall 310 is at least partially embedded in the barrel opening positioning member 303, and the bottom of the inner barrel wall 310 is at least partially embedded in the barrel bottom connecting member 302.

[0110] Preferred, such as Figure 8 and Figure 10As shown, in this embodiment, the top of the inner barrel wall 310 is embedded in the inner circumference of the barrel opening positioning member 303, and the bottom of the inner barrel wall 310 is embedded in the outer circumference of the barrel bottom connector 302.

[0111] In some possible embodiments, the inner barrel wall 310 between the barrel opening positioning member 303 and the barrel bottom connecting member 302 is set to a cylindrical shape.

[0112] In some other possible embodiments, the outer peripheral wall of the inner barrel wall 310 is parallel to the outer peripheral wall of the barrel opening positioning member 303.

[0113] Preferably, in this embodiment, the outer peripheral wall of the inner barrel wall 310 is parallel to the outer peripheral wall of the barrel opening positioning member 303.

[0114] In this embodiment, the outer barrel 4 is also provided inside the housing 101, and the outer barrel 4 is used to accommodate the inner barrel body 301 below the barrel opening positioning member 303.

[0115] That is, the positioning opening is the first receiving cavity, the internal space of the outer barrel 4 is the second receiving cavity, the outer barrel 4 is disposed in the shell 101 below the positioning opening, the outer barrel 4 is coaxially arranged with the positioning opening, the inner diameter of the outer barrel 4 is adapted to the outer diameter of the inner barrel 3, the shape of the positioning opening is adapted to the shape of the barrel opening positioning member 303, and the bottom of the barrel opening positioning member 303 abuts against the opening of the outer barrel. Thus, both circumferential positioning and axial positioning of the inner barrel 3 can be achieved.

[0116] Preferably, in this embodiment, the positioning port is configured as a groove. When the inner barrel 3 is installed, the groove wall of the positioning port fits against the peripheral wall of the barrel opening positioning member 303 to limit the circumferential position of the inner barrel 3, and the bottom of the positioning port fits against the bottom surface of the barrel opening positioning member 303 to limit the axial position of the inner barrel 3.

[0117] In this embodiment, the bottom of the groove of the positioning port is fitted with the opening of the outer barrel, and the inner circumference of the groove of the positioning port is provided with a fixing part 1130 that extends downward and at least partially extends into the opening of the outer barrel. That is, the opening of the outer barrel is fitted onto the fixing part 1130 to achieve positioning of the opening of the outer barrel, thereby improving the stability of the installation structure of the outer barrel 4.

[0118] In this embodiment, the inner barrel 3 and the receiving cavity can be detachably connected in any way.

[0119] Preferably, the inner tub 3 is magnetically connected to the receiving cavity. Specifically, the bottom of the inner tub and the bottom of the outer tub are magnetically connected. Further, a magnet 6 is provided on one of the bottoms of the inner tub and the outer tub, and a corresponding magnet 6 / magnetic element 10 is provided on the other of the bottoms of the inner tub and the outer tub. After the inner tub 3 is installed, the bottom of the inner tub and the bottom of the outer tub are attracted and fixed together.

[0120] In this embodiment, the barrel opening positioning component 303 can be integrally formed with the inner barrel body 301, or it can be set as a separate part and installed separately on the inner barrel body 301.

[0121] Preferably, the barrel opening positioning component 303 includes a first positioning component 3034 and a second positioning component 3035 that are interlocked with each other, and the inner barrel wall 310 at the inner barrel opening 300 is at least partially sandwiched between the first positioning component 3034 and the second positioning component 3035.

[0122] The inner barrel 3 has an installation part 307 on its outer wall for installing the barrel opening positioning member 303. The installation part 307 is located on the outer side of the inner barrel wall 310, near the inner barrel opening 300. The installation part 307 extends circumferentially along the inner barrel wall 310. The barrel opening positioning member 303 is at least partially covered by the installation part 307.

[0123] The mounting portion 307 includes a first mounting portion 3071 and a second mounting portion 3072 integrally formed with the inner barrel wall 310. The first mounting portion 3071 extends outward from the outer side of the inner barrel wall 310 near the inner barrel opening 300 towards the outer side of the inner barrel 3. The second mounting portion 3072 extends from the end of the first mounting portion 3071 to the upper and lower sides of the first mounting portion 3071. That is, the radial cross-section of the mounting portion 307 is T-shaped, and the barrel opening positioning member 303 covers the second mounting portion 3072.

[0124] In this embodiment, the inner diameter of the first positioning member 3034 is smaller than the inner diameter of the second positioning member 3035, and the top of the inner periphery of the second positioning member 3035 is adapted to the bottom shape of the first mounting part 3071.

[0125] The first mounting part 3071 has a third mounting part 3073 at its top. The third mounting part 3073 is disposed between the inner barrel opening 300 and the second mounting part 3072, and the inner circumference of the first positioning member 3034 is sandwiched between the second mounting part 3072 and the third mounting part 3073. Through the above arrangement, the mounting structure of the barrel opening positioning member 303 can be made more stable.

[0126] And / or, the inner barrel opening 300 expands outward from bottom to top, and the edge of the inner barrel opening 300 abuts against the inner wall of the barrel opening positioning member 303 and transitions smoothly.

[0127] Specifically, the first positioning member 3034 is disposed on the upper side of the mounting part 307, and the second positioning member 3035 is disposed on the lower side of the mounting part 307. At least the inner wall of the first positioning member 3034 is configured as a frustum-shaped surface that expands outward from bottom to top.

[0128] Preferably, in this embodiment, the taper of the inner barrel opening 300 is greater than the taper of the first positioning member 3034.

[0129] Preferably, in this embodiment, the first mounting portion 3071 is configured to slope upwards from the outside in, the second mounting portion 3072 is vertically arranged, and the inner circumferential bottom of the first positioning member 3034 and the inner circumferential top of the second connecting member 3022 are respectively abutted against the upper and lower sides of the first mounting portion 3071. This configuration makes the mounting structure of the barrel opening positioning member 303 more stable.

[0130] Preferably, in this embodiment, the mounting portion 307 includes a first mounting portion 3071, a second mounting portion 3072, and a third mounting portion 3073. The third mounting portion 3073 is parallel to the second mounting portion 3072, and the inner periphery of the first positioning member 3034 is sandwiched between the third mounting portion 3073 and the second mounting portion 3072. The inner barrel opening 300 expands outward from bottom to top, and the top of the inner barrel opening 300 abuts against the inner side of the third mounting portion 3073, or the top of the inner barrel opening 300 abuts against the inner sidewall of the connecting portion above the third mounting portion 3073.

[0131] The first connector 3021 and the second connector 3022 can be connected to each other by any connection method such as snap fasteners, screws, threads, bolts, etc.

[0132] In this embodiment, the clothing inlet 102 is located on the top of the housing 101 and is recessed inward from the top of the housing 101. The positioning port is located in the middle of the clothing inlet 102. The depth of the positioning port is the same as the thickness of the bucket mouth positioning member 303. The bucket mouth positioning member 303 is completely embedded in the positioning port. After the inner bucket 3 is installed, the top edge of the bucket mouth positioning member 303 smoothly transitions with the inner wall of the clothing inlet 102.

[0133] Preferably, in this embodiment, the bottom shape of the door 2 is adapted to the shape of the clothing inlet 102. When the door 2 is closed, the bottom of the door 2 fits against the inner wall of the clothing inlet 102, thereby pressing the bucket opening positioning member 303 into the positioning opening.

[0134] Example 2

[0135] like Figures 1 to 14 As shown in the embodiment of the present invention, a washing machine is introduced, including a housing 101, and an inner tub 3 is installed inside the housing 101. The inner tub 3 is a tub without holes and is detachably installed inside the housing 101.

[0136] The inner bucket 3 includes an inner bucket body 301, the inner bucket body 301 includes an inner bucket bottom and an inner bucket wall 310, and the inner bucket wall 310 is provided with an inner bucket opening 300 at one end away from the inner bucket bottom.

[0137] Specifically, such as Figure 8 and Figure 10 As shown, the inner barrel body 301 includes an inner barrel wall 310 and a barrel bottom connector 302. The inner barrel wall 310 is configured as a cylinder with openings at both ends. The shape of the barrel bottom connector 302 is adapted to the shape of the lower end of the inner barrel wall 310. The inner barrel wall 310 is at least partially sleeved on the barrel bottom connector 302 and connected to the barrel bottom connector 302. The barrel bottom connector 302 constitutes the bottom of the inner barrel.

[0138] In this embodiment, at the end port where the inner barrel wall 310 is connected to the barrel bottom connector 302, that is, at the lower end of the inner barrel wall 310, there is an inwardly bent and extended folded edge 311. The folded edge 311 is embedded in the barrel bottom connector 302 from the outer periphery of the barrel bottom connector 302 and is sealed and connected to the barrel bottom connector 302.

[0139] The bucket bottom connector 302 includes a first connector 3021 and a second connector 3022. The first connector 3021 and the second connector 3022 are interlocked, clamping the folded edge 311 on the inner bucket wall 310 between them. Specifically, the first connector 3021 is located on the inner side of the folded edge 311, and the second connector 3022 is located on the outer side of the folded edge 311. The first connector 3021 and the second connector 3022 are fitted together and clamped on the inner and outer sides of the folded edge 311. The first connector 3021 and the second connector 3022 are connected by screws to realize the installation between the bucket bottom connector 302 and the inner bucket wall 310.

[0140] By setting the inner barrel wall 310 to be fitted onto the barrel bottom connector 302, and setting an inwardly bent and extended flange 311 at the lower end of the inner barrel wall 310, with the flange 311 embedded in the barrel bottom connector 302, the barrel bottom connector 302 can serve as the inner barrel bottom to support the inner barrel wall 310, thereby improving the support effect of the inner barrel wall 310. At the same time, it can facilitate the installation between the barrel bottom connector 302 and the inner barrel wall 310, and improve the sealing between the inner barrel bottom and the inner barrel wall 310.

[0141] Preferably, in this embodiment, the shape of the first connector 3021 is adapted to the inner circumferential shape of the inner barrel wall 310, and the shape of the second connector 3022 is adapted to the outer circumferential shape of the inner barrel wall 310. The first connector 3021 is disposed on the inner side of the folded edge 311, and its outer circumferential wall is in contact with the inner wall of the inner barrel wall 310. The second connector 3022 is disposed on the outer side of the folded edge 311, and its outer circumferential wall is coplanar with the outer circumferential wall of the inner barrel wall 310.

[0142] In this embodiment, the bottom connector 302 is disposed at the lower end of the inner barrel wall 310, and the upper end of the inner barrel wall 310 forms the inner barrel opening 300.

[0143] Preferably, in this embodiment, the first connector 3021 is provided with a first groove 30211, and the second connector 3022 is provided with a protrusion adapted to it. The first groove 30211 is fastened and sleeved on the protrusion, and the folded edge 311 extends at least partially between the first groove 30211 and the protrusion.

[0144] The folded edge 311 includes a first folded edge 3111, a second folded edge 3112, and a third folded edge 3113. The first folded edge 3111 extends radially from the lower end of the inner barrel wall 310 toward the center of the inner barrel wall 310. The second folded edge 3112 extends axially upward from the inner edge of the first folded edge 3111. The third folded edge 3113 extends radially from the top end of the second folded edge 3112 toward the center of the inner barrel wall 310.

[0145] The first folded edge 3111 is embedded between the first connector 3021 and the second connector 3022 on the outer periphery of the protrusion, the second folded edge 3112 is embedded between the inner wall of the first groove 30211 and the outer peripheral wall of the protrusion, and the third folded edge 3113 is embedded between the protrusion and the bottom of the first groove 30211.

[0146] In this embodiment, the arrangement of the first folded edge 3111, the second folded edge 3112, and the third folded edge 3113 can, on the one hand, increase the mating area between the folded edge 311 and the bottom connector 302, and on the other hand, increase the complexity of the extension path of the folded edge 311 into the bottom connector 302, thereby improving the installation strength and sealing effect between the inner barrel wall 310 and the bottom connector 302.

[0147] Preferably, in this embodiment, the folded edge 311 is made of a soft material.

[0148] The thickness of the second folded edge 3112 is less than or equal to the radius difference between the first groove 30211 and the protrusion, thereby ensuring the convenience and smoothness of assembly between the first connector 3021 and the second connector 3022. The first connector 3021 elastically abuts against the second connector 3022 through the first folded edge 3111 and the third folded edge 3113, thereby ensuring the stability of the assembly of the first connector 3021 and the second connector 3022, as well as the stability of the sealing effect between the bottom connector 302 and the folded edge 311.

[0149] Preferably, in this embodiment, a sealing ridge is provided between the folded edge 311 and the bottom connector 302. The sealing ridge is provided between the first connector 3021 and / or the second connector 3022 and the folded edge 311, and includes multiple rings extending circumferentially.

[0150] In this embodiment, the sealing ridge includes a first sealing ridge 3024 and / or a second sealing ridge 3114. The first sealing ridge 3024 is disposed on the first connector 3021 and / or the second connector 3022 at a position corresponding to the first folded edge 3111 and / or the third folded edge 3113, and its end elastically abuts against the folded edge 311. The second sealing ridge 3114 is disposed on the folded edge 311 and elastically abuts against the first connector 3021 and / or the second connector 3022.

[0151] In some possible embodiments, the first sealing ridge 3024 is disposed on the second connector 3022 at a position corresponding to the first folded edge 3111, and the first ridge has multiple rings concentrically disposed on the second connector 3022 around the outer periphery of the protrusion.

[0152] Preferably, in this embodiment, a first sealing ridge 3024 is also provided on the first connector 3021 at the location corresponding to the first folded edge 3111, and the first sealing ridge 3024 provided on the first connector 3021 and the first sealing ridge 3024 provided on the second connector 3022 are arranged alternately.

[0153] More preferably, the groove wall of the first groove 30211 forms a first sealing ridge 3024. Specifically, the second connector 3022 has two rings of the first sealing ridge 3024 corresponding to the first folded edge 3111, and the two rings of the first sealing ridge 3024 on the second connector 3022 correspond to the two sides of the groove wall of the first groove 30211.

[0154] In some possible embodiments, the first connector 3021 and / or the second connector 3022 are provided with a first sealing ridge 3024 corresponding to the third fold 3113.

[0155] Preferably, in this embodiment, the first connector 3021 and the second connector 3022 are each provided with multiple first sealing ridges 3024 corresponding to the third fold 3113, and the first sealing ridges 3024 provided on the first connector 3021 and the third connector are arranged alternately.

[0156] Preferably, in this embodiment, the thickness of the first sealing ridge 3024 gradually decreases from the root to the end, which makes it easier for the first sealing ridge 3024 to press the folded edge 311 and cause it to undergo elastic deformation.

[0157] In some possible embodiments, the second folded edge 3112 is provided with a second sealing ridge 3114 that cooperates with the first connector 3021 and / or the second connector 3022, and the second sealing ridge 3114 is provided with multiple rings arranged axially.

[0158] Preferably, in this embodiment, the inner and outer circumferences of the second folded edge 3112 are respectively provided with a second sealing ridge 3114 that cooperates with the outer circumference of the protrusion and the inner circumference of the first groove 30211.

[0159] In a further preferred embodiment, the second sealing ridges 3114 located on the inner and outer peripheries of the second folded edge 3112 are arranged alternately.

[0160] Preferably, the first connector 3021 and the second connector 3022 are respectively provided with a first sealing ridge 3024 corresponding to the first folded edge 3111 and the third folded edge 3113, and the inner and outer circumferences of the second folded edge 3112 are respectively provided with a second sealing ridge 3114 corresponding to the second connector 3022 and the first connector 3021.

[0161] The second sealing ridge 3114 extends from its end to its root in the mounting direction. Specifically, the second sealing ridge 3114 located on the inner periphery of the second flange 3112 extends upward from its root to its end, thereby facilitating the insertion of the protrusion of the second connector 3022 into the second flange 3112; the second sealing ridge 3114 located on the outer periphery of the second flange 3112 extends downward from its root to its end, thereby facilitating the fitting of the first groove 30211 of the first connector 3021 onto the second flange 3112.

[0162] Preferably, in this embodiment, the thickness of the second protruding ridge gradually decreases from the root to the end, making it easier to deform and improving the smoothness of installation of the first connector 3021 and the second connector 3022.

[0163] In this embodiment, the first sealing ridge 3024 is made of a hard material, and the second sealing ridge 3114 is made of a soft material.

[0164] In this embodiment, the first connector 3021 and the second connector 3022 are connected by screws. The screws pass through the second connector 3022 from the side of the second connector 3022 away from the first connector 3021 and are threaded into the first connector 3021. Preferably, a plurality of screws are arranged circumferentially along the edge of the bottom connector 302, and at least some of the screws pass through the folded edge 311 axially.

[0165] In this embodiment, the inner tub 3 further includes a tub opening positioning member 303 made of rigid material. The inner tub wall 310 is provided with a mounting portion 307 for mounting the tub opening positioning member 303. The mounting portion 307 is located on the outer side of the inner tub wall 310, near the inner tub opening 300, and extends circumferentially along the inner tub wall 310. The tub opening positioning member 303 at least partially covers the mounting portion 307.

[0166] In this embodiment, the bucket opening positioning member 303 protrudes from the outer periphery of the inner bucket wall 310. The housing 101 has a first receiving cavity for accommodating the bucket opening positioning member 303 and a second receiving cavity for accommodating the inner bucket body 301 below the bucket opening positioning member 303. Preferably, the first receiving cavity is circumferentially limited to the bucket opening positioning member 303, and the second receiving cavity is circumferentially limited to the bucket bottom connecting member 302.

[0167] In this embodiment, the inner tub wall 310 is made of a flexible material. Preferably, the inner tub wall 310 is made of TPE material (thermoplastic elastomer material). The inner tub 3 is fixed in the receiving cavity by the tub opening positioning member 303 and the tub bottom connecting member 302. The inner tub wall 310 is provided with a pleated portion 309 for the inner tub 3 to shrink. The pleated portion 309 can provide a margin for the shrinkage of the inner tub 3, and can fully shrink the inner tub 3 while keeping the inner tub opening 300 and the inner tub bottom position unchanged, so as to ensure the squeezing effect of the inner wall of the inner tub 3 on the laundry in the inner tub 3.

[0168] In this embodiment, the pleated portion 309 extends circumferentially along the inner barrel wall 310 and is recessed into the inner barrel 3. The outer periphery of the pleated portion 309 is coplanar with the outer periphery of the inner barrel wall 310. In this embodiment, the outer periphery of the pleated portion 309 is flush with the outer periphery of the inner barrel wall 310, thereby making the entire outer periphery of the inner barrel wall 310 lie on the same cylindrical surface.

[0169] In some possible embodiments, the extension path of the pleated portion 309 on the unfolded surface of the inner barrel wall 310 is a straight line, that is, the pleated portion 309 is set as a regular circle, and the pleated portion 309 includes at least two pleats arranged along the axial direction, each pleat being parallel to the other.

[0170] In some possible embodiments, the extension path of the pleats 309 on the unfolded surface of the inner barrel wall 310 is an upward and / or downward curved curve.

[0171] In this embodiment, the pleated portion 309 extends circumferentially around the inner barrel wall 310 while having an upward and / or downward curved arc undulation.

[0172] Preferably, the pleated portion 309 can extend horizontally as a whole, and has multiple upwardly protruding and / or downwardly concave arc-shaped folds along the horizontal extension path; or, the extension path of the pleated portion 309 is a uniform, continuous circumference of upwardly protruding or downwardly concave folds; or, the extension path of the pleated portion 309 is a uniform, continuous wavy line.

[0173] In this embodiment, the pleated portion 309 includes at least two pleats arranged axially, with each pleat being parallel to the others.

[0174] The above-mentioned design allows the shape of the pleats 309 to better adapt to the deformation of the inner tub 3 when it shrinks, thereby improving the squeezing effect of the inner wall of the inner tub 3 on the laundry.

[0175] In some possible embodiments, the pleated portion 309 includes at least one pleat with a straight extension path on the unfolded surface of the inner tub wall 310 and at least one pleat with a curved extension path on the unfolded surface of the inner tub wall 310. This allows the pleated portion 309 to adapt to different forms of contraction of the inner tub 3, further improving the squeezing effect of the inner wall of the inner tub 3 on the laundry.

[0176] In this embodiment, the pleated portion 309 is located at the top of the inner tub wall 310, near the inner tub opening 300. Under normal circumstances, the laundry is placed in the inner tub 3 below the pleated portion 309. That is, after the washing water in the washing machine is drained, the laundry falls into the inner tub 3 below the pleated portion 309. During negative pressure spin-drying, the pleated portion 309 extends downward, and the inner tub wall 310 and the bottom of the inner tub below the pleated portion 309 squeeze the laundry, so that the water attached to the laundry is squeezed out and can be discharged directly from the inner tub drain outlet 305 on the bottom of the inner tub, thereby improving the spin-drying effect.

[0177] In this embodiment, the top of the housing 101 is provided with a door 2, which is hinged to the housing 101. The bottom of the door 2 is provided with a sealing part 203, which is adapted to the inner barrel opening 300.

[0178] Preferably, in this embodiment, the sealing part 203 extends at least partially into the inner barrel opening 300, and the circumferential surface of the sealing part 203 is elastically squeezed and fitted with the inner barrel opening 300, thereby improving the sealing effect of the door 2 on the inner barrel 3 and improving the suction effect on the inner barrel wall 310 during the negative pressure dehydration process.

[0179] Preferably, in this embodiment, the peripheral surface of the blocking part 203 is configured as a conical surface that slopes downwards toward the center of the blocking part 203.

[0180] Example 3

[0181] like Figures 1 to 14As shown in the embodiment of the present invention, a washing machine with a replaceable inner tub 3 is introduced, wherein the inner tub 3 of the washing machine is a non-perforated inner tub 3 with no perforations in the wall.

[0182] The washing machine includes a housing 101 and an inner tub 3 detachably installed inside the housing 101. Specifically, the housing 101 has a receiving cavity for accommodating the inner tub 3, and the inner tub 3 is detachably installed inside the receiving cavity.

[0183] In this embodiment, the inner tub 3 includes an inner tub body 301, which includes an inner tub wall 310 and an inner tub bottom. An inner tub drain outlet 305 is provided on the inner tub bottom. The bottom of the receiving cavity is provided with an outer tub drain outlet 401 for connecting and communicating with the inner tub drain outlet 305. During drainage, the washing water in the inner tub 3 flows out of the washing machine sequentially through the inner tub drain outlet 305 and the outer tub drain outlet 401.

[0184] In this embodiment, a drain valve 111 is installed at the drain outlet 305 of the inner tub. The drain valve 111 includes a valve body and a valve plug 1114 that is movably installed in the valve body. The valve plug 1114 has a first position for closing the water passage of the valve body and a second position for opening the water passage of the valve body.

[0185] Specifically, the valve body of the drain valve 111 is installed on the outside of the inner tub drain outlet 305. The top of the drain valve 111 is connected to the inner tub drain outlet 305, and the bottom of the drain valve 111 is connected to the outer tub drain outlet 401. When the valve plug 1114 is in the first position, the inner tub drain outlet 305 and the outer tub drain outlet 401 are separated. When the valve plug 1114 is in the second position, the inner tub drain outlet 305 and the outer tub drain outlet 401 are connected. By setting the drain valve 111 at the inner tub drain outlet 305, the washing machine can isolate the water path between the inner tub drain outlet 305 and the outer tub drain outlet 401 during the washing process, preventing the washing water from flowing between the inner tub drain outlet 305 and the outer tub drain outlet 401, thereby preventing bacteria at the outer tub drain outlet 401 from entering the inner tub 3 and contaminating the washing water and clothes in the inner tub 3.

[0186] like Figure 5 and Figure 8 As shown, in this embodiment, the drain valve 111 has a downwardly extending connector 1111 on the middle of the side of the valve body away from the inner tub drain outlet 305. The drain valve 111 is connected to the outer tub drain outlet 401 through the connector 1111. This allows the washing water to be directly introduced into the outer tub drain outlet 401 during the draining process, preventing the washing water from overflowing between the inner tub 3 and the outer tub 4. Simultaneously, it improves the positioning effect between the inner tub 3 and the outer tub 4.

[0187] In this embodiment, the bottom of the inner tub is configured as a column with a certain thickness, and the bottom of the inner tub bottom is provided with an installation groove corresponding to the drain outlet 305 of the inner tub. The diameter of the installation groove is larger than the diameter of the drain valve 111, and the drain valve 111 is installed in the installation groove.

[0188] Preferably, the distance between the end of the connector 1111 and the wall of the mounting groove is less than or equal to the depth of the mounting groove, that is, the drain valve 111 is completely accommodated inside the mounting groove. This ensures that the bottom of the inner tub remains flat, allowing the user to place the inner tub 3 stably after removal, thus improving the user experience.

[0189] Correspondingly, the outer tub drain outlet 401 protrudes from the bottom wall of the receiving cavity and extends upward. During the installation of the inner tub 3, the connector 1111 of the drain valve 111 is at least partially inserted into the outer tub drain outlet 401.

[0190] Preferably, in this embodiment, the distance between the end of the outer tub drain outlet 401 and the bottom wall of the receiving cavity is equal to the distance between the bottom surface of the drain valve 111 body on the outer periphery of the connector 1111 and the bottom surface of the inner tub. Thus, after the inner tub 3 is installed, the bottom of the inner tub fits against the bottom inner wall of the receiving cavity, and the end of the outer tub drain outlet 401 abuts against the drain valve 111 body on the outer periphery of the connector 1111, thereby improving the sealing between the drain valve 111 and the outer tub drain outlet 401.

[0191] In this embodiment, an installation rib 3051 is provided around the outer side of the inner tub drain outlet 305, extending downward from the bottom of the mounting groove. The valve body of the drain valve 111 is designed as a circular groove that matches the shape of the installation rib 3051, and the valve body of the drain valve 111 is sleeved on and installed with the installation rib 3051. The installation rib 3051 and the valve body can be connected by any connecting structure.

[0192] In some possible embodiments, the valve body is sleeved on the mounting rib 3051 and has an interference fit with the mounting rib 3051.

[0193] In some possible embodiments, the valve body and the mounting rib 3051 are connected by a snap-fit ​​structure. A snap-fit ​​protrusion is provided on the inner wall of the valve body, and a corresponding snap-fit ​​groove is provided on the mounting rib 3051. The snap-fit ​​groove includes a first snap-fit ​​groove extending axially and a second snap-fit ​​groove located at the upper end of the first snap-fit ​​groove and extending circumferentially. During valve body installation, the snap-fit ​​protrusion is first aligned with the bottom of the first snap-fit ​​groove, the valve body is moved upwards until the snap-fit ​​protrusion abuts against the top of the first snap-fit ​​groove, and then the valve body is rotated in the extending direction of the second snap-fit ​​groove to fix the valve body onto the mounting rib 3051.

[0194] In some possible embodiments, the valve body and the mounting rib 3051 are threaded together. Specifically, the inner wall of the valve body is provided with an internal thread, and the outer wall of the mounting rib 3051 is provided with an external thread that mates with it. The valve body is fixed to the mounting rib 3051 by the internal and external threads.

[0195] Preferably, in this embodiment, the mounting rib 3051 is threadedly fitted to the valve body.

[0196] Preferably, in this embodiment, a first sealing ring is provided between the mounting rib 3051 and the valve body. Specifically, the first sealing ring is embedded in the outer peripheral wall of the mounting rib 3051 and at least partially protrudes from the outer peripheral surface of the mounting rib 3051. After the valve body is installed, the inner wall of the valve body elastically abuts against the mounting rib 3051 through the first sealing ring.

[0197] More preferably, the first sealing ring is misaligned with the external thread on the mounting rib 3051, and the first sealing ring is located on the side of the external thread away from the bottom of the mounting groove, so as to avoid interference between the internal thread and the sealing ring 143.

[0198] Preferably, in this embodiment, the inner circumference of the mounting rib 3051 is provided with a sealing rib 3052 surrounding the drain outlet 305 of the inner tub. The sealing rib 3052 is coaxially arranged with the mounting rib 3051 and extends downward from the bottom of the mounting groove. The valve body is provided with a second sealing ring corresponding to the sealing rib 3052, and the end of the sealing rib 3052 elastically abuts against the second sealing ring.

[0199] In this embodiment, the diameter of the sealing rib 3052 is larger than the inner diameter of the second sealing ring and smaller than the outer diameter of the second sealing ring. During valve body installation, the end of the sealing rib 3052 gradually compresses the second sealing ring, causing the second sealing ring to undergo elastic deformation, thereby achieving a seal between the sealing rib 3052 and the valve body.

[0200] Preferably, in this embodiment, twice the diameter of the sealing rib 3052 is equal to the sum of the inner and outer diameters of the second sealing ring.

[0201] Preferably, in this embodiment, the second sealing ring is embedded in the inner wall of the valve body, and the end face of the second sealing ring is flush with the inner wall of the valve body. The extension length of the sealing rib 3052 is greater than the extension length of the mounting rib 3051. The valve body is mounted on the mounting rib 3051, the end of the mounting rib 3051 abuts against the inner wall of the valve body, and the end of the sealing rib 3052 elastically abuts against the second sealing ring.

[0202] like Figure 5 , Figure 8 and Figure 11As shown, in this embodiment, a sealing seat 1112 is fitted on the plug 1111, and the valve body elastically abuts against the outer barrel drain port 401 through the sealing seat 1112 to ensure the sealing between the drain valve 111 and the outer barrel drain port 401.

[0203] The sealing seat 1112 includes a first seat body 11121 and / or a second seat body 11122 made of soft materials such as rubber and silicone.

[0204] The first seat 11121 is fitted onto the root of the plug 1111 and extends radially. The first seat 11121 fits against the valve body of the drain valve 111 on the outer periphery of the plug 1111, so that the end of the drain port 401 of the outer barrel and the valve body are elastically abutted against each other through the first seat 11121.

[0205] The second seat 11122 is fitted onto the neck and / or end of the connector 1111 and extends axially. The outer peripheral wall of the second seat 11122 is provided with at least one ring of third sealing ridges 11124 extending radially outward. The diameter of the third sealing ridge 11124 is greater than or equal to the inner diameter of the outer barrel drain outlet 401. Thus, the second seat 11122 seals the gap between the connector 1111 and the inner wall of the outer barrel drain outlet 401 through the third sealing ridge 11124.

[0206] Preferably, in this embodiment, the diameter of the third sealing ridge 11124 is larger than the inner diameter of the outer barrel drain outlet 401.

[0207] The thickness of the third sealing ridge 11124 gradually decreases from its root to its tip. Preferably, the top side of the third sealing ridge 11124 is a radially extending plane, and the bottom side is a conical surface that slopes upward from its root to its tip. This makes it easier for the connector 1111 to be inserted into the outer tub drain outlet 401, while also improving the sealing effect of the third sealing ridge 11124 on the outer tub drain outlet 401.

[0208] Preferably, in this embodiment, the sealing seat 1112 includes an integrally formed first seat body 11121 and a second seat body 11122, which are smoothly connected by a tapered portion 11123 whose diameter gradually decreases from top to bottom; the top diameter of the tapered portion 11123 is greater than or equal to the inner diameter of the outer barrel drain outlet 401, and the bottom diameter is less than or equal to the inner diameter of the outer barrel drain outlet 401.

[0209] Preferably, in this embodiment, a tapered chamfer with a gradually decreasing diameter from top to bottom is provided between the valve body and the plug 1111 on the outer periphery of the plug 1111, and the taper of the tapered chamfer is equal to the taper of the tapered portion 11123. The inner periphery of the top of the outer barrel drain outlet 401 is provided with a tapered surface with the same taper as the tapered portion 11123. The inner and outer sides of the tapered portion 11123 are respectively fitted to the outer periphery of the valve body and the inner periphery of the outer barrel drain outlet 401.

[0210] More preferably, the top diameter of the conical surface at the top of the drain of the outer barrel 4 is equal to the top diameter of the conical portion 11123.

[0211] In this embodiment, the bottom of the connector 1111 is provided with a radial protrusion 11110 for limiting the sealing seat 1112. The diameter of the radial protrusion 11110 is less than or equal to the inner diameter of the drain outlet 401 of the outer barrel. At least part of the outer periphery of the bottom end of the radial protrusion 11110 is set as a conical surface that slopes downwards towards the axis. The sealing seat 1112 is sleeved on the connector 1111. The top end of the sealing seat 1112 abuts against the valve body on the outer periphery of the connector 1111, and the bottom end of the sealing seat 1112 abuts against the radial protrusion 11110.

[0212] Preferably, in this embodiment, the bottom diameter of the conical surface at the top of the drainage outlet of the outer bucket 4 is equal to the top diameter of the radial protrusion 11110.

[0213] In this embodiment, the drain valve 111 is a normally closed drain valve 111.

[0214] Specifically, such as Figure 8 As shown, in this embodiment, the valve body is provided with a valve plug 1114 for opening / closing the valve body water passage. The valve plug 1114 and the valve body are circumferentially limited and matched. An elastic element 1113 for driving the valve plug 1114 to normally close the valve body water passage is provided between the valve plug 1114 and the bottom of the inner barrel.

[0215] The valve body is provided with a valve seat, and the valve seat has an opening in the middle for water to flow through. The valve plug 1114 is squeezed by the elastic member 1113 to close the opening.

[0216] Preferably, in this embodiment, the valve seat is further provided with a guide wall that surrounds the opening and extends axially toward the drain outlet 305 of the inner barrel, and the valve plug 1114 is installed in the guide wall and can slide axially along the guide wall.

[0217] Preferably, in this embodiment, the guide wall is disposed on the inner circumference of the second sealing ring, and the inner diameter of the second sealing ring is adapted to the outer diameter of the guide wall, thereby improving the stability of the installation of the second sealing ring.

[0218] Preferably, in this embodiment, the elastic element 1113 is configured as a spring that abuts against the valve plug 1114 and the bottom of the mounting groove.

[0219] In this embodiment, the housing 101 is provided with a drain opening assembly 12 for driving the drain valve 111 to open. The force provided by the drain opening assembly 12 to the valve plug 1114 is greater than the sum of the force provided by the spring to the valve plug 1114 and the pressure of the maximum water level of the washing machine on the valve plug 1114.

[0220] In some possible embodiments, such as Figure 5 As shown, the drainage opening assembly 12 includes a push rod 121, a flow guiding structure 122, and a stepper motor.

[0221] Specifically, the flow guiding structure 122 is disposed on the outside of the receiving cavity. The flow guiding structure 122 includes a first flow guiding port extending axially along the outer tub drain outlet 401 and a second flow guiding port extending in a direction perpendicular to the axial direction of the outer tub drain outlet 401. The first flow guiding port and the second flow guiding port are interconnected. The first flow guiding port connects to the outer tub drain outlet 401 from the outside of the receiving cavity, and the second flow guiding port is used to connect to the drain pipe 110 of the washing machine.

[0222] The push rod 121 extends axially through the flow guide structure 122 and at least partially through the outer barrel drain outlet 401 into the drain valve 111, where it is connected to the valve plug 1114 of the drain valve 111. The push rod 121 can slide axially relative to the flow guide structure 122 to push the valve plug 1114 upward and open the opening.

[0223] The stepper motor is installed below the receiving cavity and is connected to the push rod 121 for transmission. Specifically, the working end of the stepper electrode is set perpendicular to the push rod 121, a crank block is installed on the working end of the stepper motor, an eccentric shaft is provided on the crank block, and the eccentric shaft is rotatably connected to the end of the push rod 121.

[0224] Preferably, the crank block has a cylindrical structure, and the eccentric shaft is set on the crank block at a position off the central axis. When the stepper motor drives the crank block to rotate, the eccentric shaft performs eccentric rotational motion. At the same time, the eccentric shaft and the push rod 121 rotate and cooperate, thereby converting the eccentric motion of the eccentric shaft into the linear motion of the push rod 121. The push rod 121 drives the valve plug 1114 to move in the valve body to realize the opening and closing of the drain valve 111.

[0225] In this embodiment, a sealing structure is provided between the push rod 121 and the guide structure 122 to prevent the washing water from wetting the motor.

[0226] In this embodiment, the push rod 121 is slidably engaged with the end of the first guide port away from the outer barrel drain port 401. The guide structure 122 is a bellows, with a first limiting part and a second limiting part at each end of the bellows. The first limiting part extends radially toward the middle of the bellows, and the second limiting part extends radially outward. The bellows is sealed to the periphery of the push rod 121 through the first limiting part, and sealed to the inner wall of the end of the first guide port away from the outer barrel drain port 401 through the second limiting part. The bellows provides axial movement allowance for the push rod 121, thereby converting the dynamic seal between the push rod 121 and the guide structure 122 into a static seal, improving the sealing performance.

[0227] Preferably, in this embodiment, the inner tub drain outlet 305 is configured to consist of multiple small holes arranged in a regular or irregular manner, thereby preventing small items in the inner tub 3 from entering the drain valve 111.

[0228] Example 4

[0229] like Figures 1 to 14 As shown in the embodiment of the present invention, a washing machine is introduced, including a housing 101, and a tub module is disposed inside the housing 101.

[0230] The tub module includes an inner tub 3 and an outer tub 4. The outer tub 4 is fixedly installed inside the housing 101, and the inner tub 3 is a non-perforated tub that is detachably installed inside the outer tub 4. This invention, by providing a detachable connection between the inner tub 3 and the outer tub 4, allows a single washing machine to be equipped with multiple inner tubs 3, facilitating the replacement of the inner tubs 3. During use, users can use one tub per person or multiple tubs per person, configuring the number of inner tubs 3 according to their needs for categorized washing. This prevents cross-contamination when washing different types of clothing, and eliminates the need for multiple washing machines, saving costs.

[0231] In this embodiment, the bucket module is installed in the internal space of the housing 101 via a bucket bracket 113.

[0232] The bucket support 113 includes a first support 1131 and a second support 1132. The first support 1131 is plate-shaped and is sleeved on the top of the bucket module. The second support 1132 is plate-shaped and parallel to the first support 1131. The second support 1132 is located below the bucket module and is used to support the bucket module.

[0233] The first bracket 1131 has a downwardly extending first connecting plate 1133 on its side. The first connecting plate 1133 and the first bracket 1131 are integrally formed. The lower end of the first connecting plate 1133 is connected to the second bracket 1132.

[0234] Specifically, a downwardly extending second connecting plate 1134 is provided on the side of the second bracket 1132. The upper end of the second connecting plate 1134 is formed with the side of the second bracket 1132, and the lower end of the second connecting plate 1134 is supported by the inner side of the bottom wall of the outer casing 141. Preferably, at least two oppositely arranged second connecting plates 1134 are provided to ensure the stability of the support effect on the outer barrel 4.

[0235] At least two first connecting plates 1133 are provided, and at least two first connecting plates 1133 are evenly arranged around the first bracket 1131. The arrangement of the first support plate can ensure the parallelism between the first bracket 1131 and the second bracket 1132.

[0236] In this embodiment, the first bracket 1131 is provided to limit the top of the bucket module and prevent the bucket module from tipping over. The second bracket 1132 is provided to support the first bracket 1131 and the bucket module.

[0237] In this embodiment, the lower end of the first connecting plate 1133 can be connected to the second bracket 1132 in any possible connection method. Preferably, the lower end of the first connecting plate 1133 and the second bracket 1132 are connected by bolts.

[0238] Meanwhile, the second connecting plate 1134 and the bottom wall of the housing 101 form a chamber for installing the drive motor. The drive motor is installed below the second bracket 1132, and the motor shaft of the drive motor extends through the second bracket 1132 and the bottom of the outer barrel into the outer barrel 4. An oil seal for sealing the shaft hole on the bottom of the outer barrel and a bearing for supporting the motor shaft are provided between the bottom of the outer barrel and the motor shaft.

[0239] Preferably, in this embodiment, the first support 1131 is configured as an annular shape with an inner circumference adapted to the shape of the outer barrel opening. The inner circumference of the first support 1131 extends to the outer barrel opening and fits against the top of the outer barrel opening. The inner circumference of the first support 1131 is provided with a fixing part 1130 that extends downward and at least partially extends into the outer barrel opening. The outer diameter of the fixing part 1130 is the same as the inner diameter of the outer barrel opening. The outer peripheral wall of the fixing part 1130 fits against the inner wall of the outer barrel opening and is used to support the top of the outer barrel 4.

[0240] The inner tub 3 is installed inside the outer tub 4 by the fixing part 1130. In this embodiment, a tub opening positioning member 303 is provided at the opening 300 of the inner tub. The tub opening positioning member 303 is an annular member sleeved on the outer periphery of the inner tub opening 300. The outer diameter of the tub opening positioning member 303 is larger than the diameter of the outer tub opening. The bottom of the tub opening positioning member 303 abuts against the first bracket 1131 on the outer periphery of the fixing part 1130.

[0241] Preferably, in this embodiment, the washing machine is a washing machine capable of negative pressure spin drying. Specifically, the washing machine includes a negative pressure component 7, which is connected to the inner tub 3 and is used to extract water and air from the inner tub 3.

[0242] The inner tub 3 is a non-perforated tub with a non-perforated inner tub wall 310. The inner tub 3 is made of soft materials such as rubber. When the negative pressure component 7 is working, it can extract the water and air from the inner tub 3, causing the inner tub 3 to contract inward. The inner wall of the inner tub 3 can squeeze the laundry in the inner tub 3, causing the water in the laundry to be separated and extracted by the negative pressure component 7. This achieves the squeezing and dehydration of the laundry, which can reduce the vibration and noise generated during the washing machine's dehydration process. At the same time, it can reduce the wear and tear on the laundry during the washing machine's dehydration process and improve the user experience.

[0243] In this embodiment, the negative pressure component 7 is connected to the inner tub 3 from the bottom. Specifically, the negative pressure component 7 includes a temporary storage chamber 701 and an air pump 702. The temporary storage chamber 701 is connected to the inner tub drain outlet 305 on the bottom of the inner tub. The input end of the air pump 702 is connected to the temporary storage chamber 701 from the top, and the output end of the air pump 702 is connected to the outside atmosphere. The drain pipe 110 of the washing machine is connected to the temporary storage chamber 701 from the bottom, and a one-way valve is provided on the drain pipe 110.

[0244] Therefore, when the air pump 702 is running, it can extract the air from the temporary storage chamber 701, creating a negative pressure in the temporary storage chamber 701, thereby extracting the water and air from the inner tub 3. After the water and air in the inner tub 3 enter the temporary storage chamber 701, the water and air separate. The water is temporarily stored at the bottom of the temporary storage chamber 701, while the air rises to the top of the temporary storage chamber 701 and is extracted by the air pump 702. When the air pump 702 stops running, the water in the temporary storage chamber 701 is discharged through the drain pipe 110.

[0245] In this embodiment, the washing machine also includes a door 2, which is installed on the top of the housing 101 and can seal the inner tub 3.

[0246] Specifically, the door 2 is mounted on the first bracket 1131 via a hinge. The bottom of the door 2 is provided with a sealing part 203 that is adapted to the shape of the inner tub opening 300. When the door 2 is closed, the sealing part 203 extends at least partially into the inner tub opening 300 and is interference-fitted with the inner tub opening 300, thereby achieving a sealing effect on the inner tub opening 300, forming a sealed space in the inner tub 3, and enabling the washing machine to perform negative pressure spin-drying.

[0247] In this embodiment, the temporary storage cavity 701 can be installed between the inner wall of the housing 101 and the outer tub 4. Preferably, the shape of the temporary storage cavity 701 can be configured such that one side is adapted to the shape of the inner wall of the housing 101, and the other side of the temporary storage cavity 701 is adapted to the shape of the outer tub 4. That is, the temporary storage cavity 701 can make full use of the space between the inner wall of the housing 101 and the outer tub 4, thereby reducing the size of the washing machine.

[0248] By setting the temporary storage cavity 701 to be installed on the outer peripheral wall of the tub module and / or on the inner wall of the housing 101, and its shape to match the spatial shape between the tub module and the housing 101, the temporary storage cavity 701 can fully occupy the space between the tub module and the housing 101. While ensuring the volume of the temporary storage cavity 701, the size of the housing 101 can be reduced, thereby reducing the volume of the washing machine capable of negative pressure dehydration. This makes the washing machine more suitable for the space layout of the user's home and improves the user experience.

[0249] Preferably, in this embodiment, the temporary storage cavity 701 is generally arc-shaped, with its first side wall fitting against the outer peripheral wall of the barrel module and its second side wall fitting against the inner wall of the housing 101; the width of the temporary storage cavity 701 gradually increases from the first side to the second side. In this embodiment, the left and right side walls of the temporary storage cavity 701 are set as inclined surfaces that slope inward from the second side to the first side, making the shape of the temporary storage cavity 701 more adaptable to the shape of the space between the barrel module and the housing 101, thereby increasing the volume of the temporary storage cavity 701 without affecting the installation of surrounding components.

[0250] In this embodiment, the temporary storage cavity 701 is provided with a first mounting ear 705 on its periphery, and a corresponding mounting thread post 404 is provided on the outer peripheral wall of the barrel module and / or the inner wall of the shell 101. The first mounting ear 705 and the mounting thread post 404 are connected by screws.

[0251] The first mounting ear 705 is disposed at the upper and lower ends of the temporary storage cavity 701, and has a plurality of them arranged along the extension direction of the temporary storage cavity 701.

[0252] In some possible embodiments, the mounting threaded post 404 is disposed on the outer peripheral wall of the barrel module and extends radially along the barrel module. The mounting threaded post 404 is provided with a threaded hole. The end of the mounting threaded post 404 abuts against the first mounting ear 705. The first mounting ear 705 and the mounting threaded post 404 are connected by screws.

[0253] In some possible embodiments, the mounting threaded post 404 is disposed on the inner wall of the housing 101, and its end abuts against the first mounting lug 705. The first mounting lug 705 and the mounting threaded post 404 are connected by screws.

[0254] In some possible embodiments, some mounting threaded posts 404 are disposed on the inner wall of the housing 101, and some mounting threaded posts 404 are disposed on the outer peripheral wall of the barrel module. The first mounting ear 705 is provided with a plurality of mounting threaded posts 404 corresponding to the mounting threaded posts 404 on the inner wall of the housing 101 and the mounting threaded posts 404 on the outer peripheral wall of the barrel module, respectively.

[0255] Preferably, in this embodiment, a second mounting ear 706 is provided on the periphery of the temporary storage cavity 701, and a corresponding pre-installation positioning post 403 is provided on the outer peripheral wall of the barrel module and / or the inner wall of the shell 101, and the second mounting ear 706 is sleeved on the pre-installation positioning post 403.

[0256] In this embodiment, the second mounting ear 706 and the pre-installation positioning post 403 are provided to facilitate the operator to further install the temporary storage cavity 701, and to improve the positioning effect of the temporary storage cavity 701 and the stability of the installation of the temporary storage cavity 701.

[0257] Preferably, in this embodiment, in order to facilitate the assembly between the barrel module and the housing 101, the mounting threaded post 404 and the pre-installation positioning post 403 are both set on the outer peripheral wall of the barrel module. The operator first installs the receiving cavity on the barrel module, and then assembles the barrel module together with the receiving cavity into the housing 101.

[0258] The housing 101 is a split structure, including a housing body 1011 and a base 1012. The tub module is installed on the base 1012 via a tub bracket 113. Then, the housing body 1011 is fitted onto the tub module, and the bottom of the housing body 1011 is connected to the base 1012 to complete the assembly of the washing machine.

[0259] Preferably, in this embodiment, a first reinforcing rib 402 is further provided on the outer peripheral wall of the bucket module. The first reinforcing rib 402 extends radially outward from the outer peripheral wall of the bucket module, and the end of the first reinforcing rib 402 abuts against the first side of the temporary storage cavity 701; and / or, a second reinforcing rib 1013 is further provided on the inner wall of the housing 101. The second reinforcing rib 1013 protrudes from the inner wall of the housing 101 and extends axially, and the end of the second reinforcing rib 1013 abuts against the second side of the temporary storage cavity 701.

[0260] In this embodiment, a plurality of first reinforcing ribs 402 are provided on the outer peripheral wall of the barrel module, and the plurality of first reinforcing ribs 402 are arranged axially along the outer peripheral wall of the barrel module. A plurality of second reinforcing ribs 1013 are provided on the inner wall of the shell 101, and the second reinforcing ribs 1013 are arranged circumferentially along the inner wall of the shell 101.

[0261] Preferably, in this embodiment, the sidewall of the first side of the temporary storage cavity 701 is provided with a first reinforcing groove that matches the shape of the first reinforcing rib 402, and the temporary storage cavity 701 is engaged with the first reinforcing rib 402 through the first reinforcing groove; and / or, the sidewall of the second side of the temporary storage cavity 701 is provided with a second reinforcing groove that matches the shape of the second reinforcing rib 1013, and the temporary storage cavity 701 is engaged with the second reinforcing rib 1013 through the second reinforcing groove.

[0262] Preferably, in this embodiment, the outer peripheral wall of the barrel module is provided with a plurality of uniformly arranged first reinforcing ribs 402, and the first reinforcing groove on the temporary storage cavity 701 is sleeved on the end of the first reinforcing ribs 402.

[0263] The inner wall of the housing 101 is provided with a second reinforcing rib 1013, and the second reinforcing groove on the temporary storage cavity 701 is sleeved on the second reinforcing rib 1013.

[0264] The present invention improves the axial positioning effect of the temporary storage cavity 701 by setting a first reinforcing rib 402 and a first reinforcing groove that cooperate with each other, and improves the circumferential positioning effect of the temporary storage cavity 701 by setting a second reinforcing rib 1013 and a second reinforcing groove that cooperate with each other. At the same time, the setting of the first reinforcing rib 402 and the second reinforcing rib 1013 can improve the support strength of the tub module and the shell 101, and the setting of the first reinforcing groove and the second reinforcing groove can improve the strength of the temporary storage cavity 701, thereby improving the service life of the washing machine.

[0265] In this embodiment, by setting the second reinforcing groove and the second reinforcing rib 1013 to extend axially, the housing body 1011 can be more easily installed with the barrel module.

[0266] Preferably, in this embodiment, the second reinforcing rib 1013 and the second reinforcing groove are configured as a mutually compatible pair. During the installation process, the second reinforcing rib 1013 is aligned with the second reinforcing groove, and then the housing body 1011 is fitted onto the outer periphery of the barrel module.

[0267] Example 5

[0268] like Figures 1 to 15 As shown in the embodiment of the present invention, a washing machine is introduced, including a body 1 and a door 2. A tub module is provided inside the body 1, and the door 2 is located on the top of the body 1. One end of the door 2 is connected to the body 1 by a hinge, and the other end of the door 2 is connected to the body 1 by a door lock 103.

[0269] The top of the housing 101 is provided with a clothing inlet 102, which is connected to the bucket module inside the body 1. Users can add clothes to the bucket module or take clothes out of the bucket module through the clothing inlet 102.

[0270] Preferably, in this embodiment, the clothing inlet 102 is located at the top of the housing 101 and is recessed inward from the top of the housing 101. The bottom shape of the door 2 is adapted to the shape of the clothing inlet 102 and is used to open / close the clothing inlet 102. When the door 2 is closed, the bottom of the door 2 is in contact with the inner wall of the clothing inlet 102.

[0271] In this embodiment, the bucket module includes an inner bucket 3, the inner bucket opening 300 of which corresponds to the clothing inlet 102. The body 1 is provided with a water inlet pipe 104 and a drain pipe 110 connected to the bucket module. The water inlet pipe 104 is connected to the water source in the user's home, and the drain pipe 110 is connected to the drain pipe used for drainage.

[0272] The water inlet pipe 104 is equipped with an inlet valve 1041 and a flow meter. The flow meter is communicatively connected to the inlet valve 1041 and is used to detect the amount of water flowing into the inner tub 3 and control the opening and closing of the inlet valve 1041. Specifically, the flow meter and the inlet valve 1041 can be communicatively connected to the control unit of the washing machine. When the inlet valve 1041 is open, the control unit controls the flow meter to work and obtain the water inlet volume. The flow meter transmits the detection result to the control unit in real time. When the detected water inlet volume reaches a preset value, the control unit controls the inlet valve 1041 to close.

[0273] The drain pipe 110 is equipped with a drain valve 111 for controlling the drainage of the washing machine.

[0274] Preferably, in this embodiment, the door 2 of the washing machine is provided with a laser water level detection module 14 for detecting the water level in the tub module, and the laser water level detection module 14 is communicatively connected to the water inlet valve 1041 and / or the drain valve 111 of the washing machine.

[0275] Specifically, the laser water level detection module 14 is connected to the control unit of the washing machine and can detect the water level in the tub module in real time. When the laser water level sensor detects that the water level in the tub module has risen to a certain value, the control unit controls the water inlet valve 1041 to close and / or controls the drain valve 111 to open.

[0276] In this embodiment, by setting a laser water level detection module 14 that can detect the water level in the drum module in real time, and setting the laser water level detection module 14 to communicate with the water inlet valve 1041 and / or the drain valve 111, the water inlet valve 1041 can be closed to stop the washing machine from taking in water when the water level in the washing machine rises to the maximum water level, or before the water level rises to the maximum water level, and / or the drain valve 111 can be opened to drain the excess water, thereby preventing the washing water from overflowing into the user's home due to excessive water intake, thus improving the user experience.

[0277] In this embodiment, the washing machine is a negative pressure spin-drying washing machine. Therefore, the excessive water intake may also be due to the inner tub wall 310 not fully rebounding after contraction, i.e., the inner tub wall 310 is still in a contracted state. The laser water level detection module can also be used to determine whether the inner tub is in a contracted state. Specifically, the control method of the washing machine includes the following steps:

[0278] Obtain the actual water intake of inner tank 3 and the water level inside inner tank 3;

[0279] The water intake volume is calculated based on the water level and the dimensions of the inner tank.

[0280] Determine whether the inner tub 3 is in a contracted state based on the actual and calculated water intake.

[0281] In this embodiment, if the actual water intake is less than the calculated water intake, it is determined that the inner tub is still in a contracted state and has not fully rebounded.

[0282] In this embodiment, the actual water inflow is measured by a flow meter on the water inlet pipe.

[0283] In this example, if it is determined that the inner tub is in a retracted state, the washing machine continues to fill with water. When the water level rises to the maximum level, the water filling stops and an alarm is triggered.

[0284] Preferably, in this embodiment, the water inlet valve is closed when the actual water intake reaches the preset water intake, and / or when the water level in the inner tank rises to the highest water level.

[0285] In a further preferred embodiment, if the inner tub is in a retracted state, when the water level in the inner tub rises to the highest water level, the water inlet valve closes, and the preset water inlet volume is compared with the actual water inlet volume. If the actual water inlet volume is less than the preset water inlet volume, an alarm is triggered; if the actual water inlet volume is equal to the preset water inlet volume, the washing program continues to run.

[0286] The above settings can prevent excessive water intake in the washing machine due to the inner drum not fully rebounding, thus improving the user experience.

[0287] Preferred, such as Figure 15 As shown, in this embodiment, a control method for the above-mentioned washing machine is also disclosed, the control method including the following steps:

[0288] S1: Get the water level inside the bucket module;

[0289] S2: When the water level in the tank module rises to the highest water level, control the inlet valve 1041 to close, and / or control the drain valve 111 to open.

[0290] In this embodiment, the water level inside the bucket module is detected by a laser water level detection module 14. Specifically, the laser water level detection module 14 is installed on the door 2, opposite to the inner bucket opening 300. The laser water level detection module 14 includes a laser detection element 1421 for emitting / receiving laser light. The laser water level detection module 14 emits a laser vertically downward, and returns after reaching the water surface. The liquid level height is calculated by the return time.

[0291] The above settings prevent excessive water intake and spillage into the user's home due to flow meter failure or inaccurate flow meter readings. For example, if the inlet valve 1041 malfunctions and cannot be closed or fully closed, or if there is a power outage during the washing process, and the tub module still contains a certain amount of washing water that resumes filling after power is restored, or if the flow meter malfunctions and cannot accurately detect the water intake, the washing machine can use the laser water level detection module 14 to detect the water level in the tub module, preventing excessive water intake.

[0292] Of course, the flow meter can be omitted from the washing machine, and the water level in the tub module can be detected only by the laser water level detection module 14. Preferably, in this embodiment, both the flow meter and the laser water level detection module 14 are installed on the washing machine, and the detection results of the two can be mutually corrected.

[0293] Preferably, in this embodiment, the washing machine control method, step "S2" specifically includes the following steps:

[0294] S2.1: Determine whether the water level in the bucket module has risen to the preset value. If not, execute S1; if yes, execute S2.2.

[0295] S2.2: Control the inlet valve 1041 to close, and continue to acquire the water level in the tank module;

[0296] S2.3: Determine if the water level in the tank module continues to rise. If yes, execute S2.4; otherwise, execute S2.6.

[0297] S2.4: Control drain valve 111 to open;

[0298] S2.5: The alarm module starts sounding an alarm;

[0299] S2.6: End.

[0300] Preferably, in this embodiment, the preset value of the water level in the bucket module is any water level that is lower than the highest water level in the bucket module.

[0301] In this embodiment, by setting the laser water level detection module 14 to detect the water level in the tub module after the water inlet valve 1041 is closed, it is possible to prevent excessive water from overflowing outside the washing machine due to the failure of the water inlet valve 1041, thereby improving the user experience.

[0302] In this embodiment, by setting an alarm module, users can promptly detect problems with the washing machine. While preventing washing water from overflowing to the outside of the washing machine, it reminds users to turn off the water supply in time to reduce water waste. At the same time, it can remind users to inspect the water inlet valve 1041.

[0303] like Figure 12 , Figure 13 In this embodiment, the laser water level detection module 14 is installed on the bottom wall of the door 2. Specifically, the interior of the door 2 is a hollow structure, and at least the portion of the bottom wall of the door 2 corresponding to the laser water level detection module 14 is made of a light-transmitting material. Alternatively, the bottom wall of the door 2 has a mounting port 206 corresponding to the laser water level detection module 14. The laser detection element 1421 of the laser water level sensor corresponds to the portion of the bottom wall of the door 2 made of light-transmitting material, or the laser detection element 1421 corresponds to the mounting port 206 on the bottom wall of the door 2. The laser water level detection module 14 emits a laser vertically into the tub module through the transparent material on the bottom wall of the door 2 or the mounting port 206, or receives the laser reflected back by the washing water inside the tub module.

[0304] In this embodiment, the bottom wall of the door 2 can be made of PMMA material (polymethyl methacrylate).

[0305] In this embodiment, the door 2 includes a first door and a second door that interlock with each other. The first door is located on the side near the body 1, corresponding to the clothing loading port 102. The hinge is connected to the rear end of the first door, and the second door is fastened to the top of the first door. Preferably, the middle part of the first door is provided with an installation port 206 for installing the laser water level detection module 14.

[0306] like Figure 13 As shown, in this embodiment, the laser water level detection module 14 includes a housing 141 and a PCB board 142 disposed inside the housing 141. The laser detection element 1421 for emitting / receiving laser is disposed on the PCB board 142, and the PCB board 142 is electrically connected to the control unit of the washing machine.

[0307] Specifically, the outer shell 141 of the laser water level detection module 14 is installed at the mounting port 206, covering and sealing the mounting port 206. The PCB board 142 is installed on the outer shell 141 on the side away from the tank module. The laser detection element 1421 on the PCB board 142 is located on the side facing the tank module. At least the portion of the outer shell 141 corresponding to the mounting port 206 is made of a light-transmitting material. The light-transmitting material can be PMMA or transparent glass.

[0308] In some possible embodiments, the outer casing 141 is installed on the bottom wall of the door 2 near the barrel module, the outer casing 141 covers the mounting opening 206 from the side of the mounting opening 206 near the barrel module, and the PCB board 142 is installed on the side of the outer casing 141 away from the barrel module.

[0309] In some other possible embodiments, the housing 141 is installed on the bottom wall of the door 2 away from the barrel module, the housing 141 covers the mounting opening 206 away from the barrel module, and the PCB board 142 is installed on the side of the housing 141 away from the barrel module.

[0310] In this embodiment, the outer shell 141 is configured as a groove with the opening facing away from the barrel module. The PCB board 142 can be installed in the groove of the outer shell 141 by any mounting structure. For example, the PCB board 142 can be fixed in the groove of the outer shell 141 by screws or installed in the groove of the outer shell 141 by a snap-fit ​​structure.

[0311] Preferably, in this embodiment, the PCB board 142 is mounted in the groove of the housing 141 via a snap-fit ​​structure. Specifically, the shape of the bottom of the groove of the housing 141 is adapted to the shape of the bottom of the PCB board 142, the PCB board 142 is mounted at the bottom of the groove of the housing 141, and the edge of the PCB board 142 is in contact with the bottom of the groove of the housing 141. The laser detection element 1421 on the PCB board 142 is disposed opposite to the bottom of the groove of the housing 141, and at least the bottom of the groove of the housing 141 is made of a light-transmitting material.

[0312] The snap-fit ​​structure is a limiting claw 1411 disposed in the groove of the outer shell 141.

[0313] In some possible embodiments, the limiting claw 1411 is disposed on the bottom of the groove of the housing 141. Specifically, the limiting claw 1411 is disposed around the PCB board 142. The limiting plate includes a neck disposed on the periphery of the PCB board 142 and extending axially from the bottom of the groove of the housing 141 into the groove of the housing 141, and a claw portion disposed at the end of the neck. The claw portion extends radially from the end of the neck towards the axis of the housing 141. The distance between the claw portion and the bottom of the groove of the housing 141 is adapted to the thickness at the edge of the PCB board 142. The edge of the PCB board 142 is engaged between the claw portion and the bottom of the groove of the housing 141.

[0314] In some other possible embodiments, the limiting claw 1411 is disposed on the groove wall of the housing 141. Specifically, the limiting claw 1411 is disposed around the PCB board 142, protruding from the groove wall of the housing 141 toward the center of the housing 141, and at least partially extending to the edge of the PCB board 142. The distance between the end of the limiting claw 1411 and the bottom of the groove of the housing 141 is adapted to the thickness of the PCB board 142, and the edge of the PCB board 142 is engaged between the limiting claw 1411 and the bottom of the groove of the housing 141.

[0315] Preferably, in this embodiment, the limiting claws 1411 are configured to be at least two, and the at least two limiting claws 1411 are evenly arranged around the PCB board 142.

[0316] Preferably, in this embodiment, the limiting claw 1411 is disposed on the bottom of the groove of the housing 141, and the top of the claw portion of the limiting claw 1411 near the PCB board 142 is configured as an inclined surface that slopes from the groove opening of the housing 141 towards the axis of the housing 141, so as to facilitate the installation of the PCB board 142.

[0317] Preferably, in this embodiment, the groove of the outer shell 141 is further provided with a guide rib 1412 for guiding the installation angle of the PCB board 142. The guide rib 1412 is disposed on the groove wall of the outer shell 141 and extends along the installation direction of the PCB board 142. The edge of the PCB board 142 is provided with a guide groove corresponding to the guide rib 1412. The guide groove is sleeved on the guide rib 1412 and slides along the guide rib 1412 to ensure the accuracy of the installation angle of the PCB board 142.

[0318] Preferably, in this embodiment, the housing 101 is configured as a circular groove, the PCB board 142 is configured as a square plate, two limiting claws 1411 are provided, each corresponding to one of the two opposite edges of the PCB board 142, and two guide ribs 1412 are provided, each corresponding to one of the other two opposite edges of the PCB board 142.

[0319] Preferably, in this embodiment, the outer shell 141 is made entirely of PMMA material.

[0320] Preferably, in this embodiment, the outer casing 141 is installed on the side of the bottom wall of the door 2 away from the bucket module. Specifically, the outer casing 141 includes a first part with an outer diameter larger than the diameter of the mounting opening 206, and a second part disposed in the middle of the side of the first part near the bucket module. The outer diameter of the second part is smaller than or equal to the diameter of the mounting opening 206. The first part and the second part of the outer casing 141 are coaxially arranged, and the first part is provided with a mounting structure on its periphery for connecting to the bottom wall of the door 2.

[0321] During the installation process of the outer shell 141, the second part of the outer shell 141 extends from the side of the mounting port 206 away from the barrel module into the mounting port 206, and the outer shell 141 is limited by the first part of the outer periphery of the second part and the bottom wall of the door body 2.

[0322] Preferably, the outer diameter of the second part of the outer casing 141 gradually decreases from the door body 2 to the barrel module, and the outer diameter of the end of the second part near the first part is adapted to the diameter of the mounting opening 206.

[0323] In this embodiment, the mounting structure includes an ear plate 1413 disposed on the periphery of the first part of the outer shell 141, and a threaded post disposed on the bottom wall of the door body 2 corresponding to the ear plate 1413. The threaded post has a threaded hole, and a screw passes through the ear plate 1413 and is connected to the threaded post, thereby mounting the outer shell 141 on the bottom wall of the door body 2.

[0324] In this embodiment, a sealing ring 143 is provided between the outer shell and the door body, and the sealing ring 143 includes a third sealing ring and / or a fourth sealing ring. Specifically, a third sealing ring is provided between the first part of the outer shell 141 and the bottom wall of the door body 2, and / or a fourth sealing ring is provided between the second part of the outer shell 141 and the inner wall of the mounting opening 206.

[0325] In some possible embodiments, the third sealing ring is embedded in the first part of the outer casing 141 near the bottom wall of the door body 2, and the third sealing ring at least partially protrudes from the end face of the first part of the outer casing 141. The first part elastically abuts against the bottom wall of the door body 2 through the third sealing ring. The fourth sealing ring is embedded in the outer periphery of the second part of the outer casing 141, and at least partially protrudes from the outer peripheral wall of the second part of the outer casing 141. The outer casing 141 elastically abuts against the inner wall of the mounting opening 206 through the fourth sealing ring.

[0326] In some possible embodiments, the third and fourth sealing rings are integrally formed. The third sealing ring extends radially from the root of the second portion of the housing 141 and fits against the end face of the first portion of the outer periphery of the second portion. The fourth sealing ring extends axially from the inner periphery of the third sealing ring toward the barrel module. Preferably, the thickness of the fourth sealing ring is greater than the distance between the second portion of the housing 141 and the inner wall of the mounting opening 206.

[0327] Preferably, in some possible embodiments, the sealing ring 143 is disposed between the second part of the housing and the mounting port. Specifically, the sealing ring 143 is embedded in the top of the mounting port, the sealing ring 143 at least partially protrudes from the top of the mounting port and abuts against the first part of the housing, and the housing presses the sealing ring 143 into the mounting port to achieve a seal between the housing and the mounting port.

[0328] Preferred, such as Figure 13 As shown, in this embodiment, the bottom wall of the door body 2 has an extension wall extending axially along the door body 2. The extension wall surrounds the mounting opening 206, and the diameter of the extension wall is larger than the diameter of the mounting opening 206. Specifically, the diameter of the extension wall is adapted to the outer diameter of the first part of the outer shell 141, the diameter of the mounting opening 206 is adapted to the outer diameter of the second part of the outer shell 141, and the threaded post is disposed on the outer periphery of the extension wall.

[0329] The inner diameter of the sealing ring 143 is adapted to the outer diameter of the second part of the outer shell 141, and the outer diameter of the sealing ring 143 is adapted to the diameter of the extension wall. During installation, the sealing ring 143 is installed inside the extension wall, with the lower end of the sealing ring abutting against the bottom wall of the door body 2, and the upper end of the sealing ring abutting against the end face of the first part of the outer periphery of the second part. The outer periphery of the second part is elastically abutted against the inner wall of the extension wall through the sealing ring.

[0330] Preferably, in this embodiment, the distance between the first part of the outer shell and the bottom wall of the door is less than or equal to the axial length of the sealing ring.

[0331] Example 6

[0332] like Figure 1 and Figure 2 As shown in this embodiment, a washing machine is introduced, which includes a body 1 and a door 2. The door 2 is mounted on the body 1 in a rotatable manner by means of a hinge. The door 2 has an open position for opening the clothes inlet 102 on the body 1 and a closed position for closing the clothes inlet 102.

[0333] like Figure 13As shown, in this embodiment, the washing machine body 1 is further provided with a negative pressure component 7. The negative pressure module is connected to the inner tub 3 and is used to extract water and air from the inner tub 3. The inner tub 3 is a non-perforated tub with a non-perforated inner tub wall 310, and the inner tub wall 310 of the inner tub 3 is made of soft materials such as rubber. When the negative pressure component 7 is working, it can extract water and air from the inner tub 3, causing the inner tub 3 to contract inward. The inner wall of the inner tub 3 can squeeze the laundry in the inner tub 3, causing the water in the laundry to separate and be extracted by the negative pressure component 7, thereby achieving the squeezing and dehydration of the laundry. This can reduce the vibration and noise generated during the washing machine's dehydration process, and at the same time, reduce the wear and tear on the laundry during the washing machine's dehydration process, improving the user experience.

[0334] Preferably, in this embodiment, the inner tub wall 310 is provided with a pleated portion 309 for the inner tub 3 to shrink. The pleated portion 309 can provide a margin for the shrinkage of the inner tub 3, and can fully shrink the inner tub 3 while keeping the inner tub opening 300 and the inner tub bottom position unchanged, so as to ensure the squeezing effect of the inner wall of the inner tub 3 on the laundry in the inner tub 3.

[0335] In some possible embodiments, the housing 101 is provided with an outer tub 4 for accommodating the inner tub 3, and the bottom of the inner tub and the bottom of the outer tub are magnetically connected. A tub opening positioning member 303 is provided at the opening 300 of the inner tub. The opening positioning member is embedded in the positioning opening in the middle of the clothing inlet 102. When the door 2 is in the closed position, the tub opening positioning member 303 is pressed into the positioning opening, thereby ensuring the stability of the relative position between the inner tub 3 and the outer tub 4.

[0336] Of course, the inner tub 3 and the outer tub 4 can also be installed using any other assembly method, as long as the relative positions of the inner tub 3 and the outer tub 4 remain unchanged. The above-described arrangement is only a preferred solution. The advantage of this solution is that the inner tub 3 can be replaced, avoiding cross-contamination.

[0337] In some possible embodiments, the washing machine may not have an outer tub 4, but only an inner tub 3, as long as the stability of the relative position between the inner tub 3 and the shell 101 is ensured.

[0338] This embodiment uses the example of the inner bucket 3 being installed in the outer bucket 4 for illustration.

[0339] like Figure 4 and Figure 8As shown, in this embodiment, the pleated portion 309 extends circumferentially along the inner tub wall 310 and is recessed into the inner tub 3. The outer periphery of the pleated portion 309 is coplanar with the outer periphery of the inner tub wall 310. In this embodiment, the outer periphery of the pleated portion 309 is flush with the outer periphery of the inner tub wall 310, thereby making the entire outer periphery of the outer tub wall on the same cylindrical surface. This allows the outer periphery of the inner tub wall 310 to fit snugly against the inner wall of the outer tub wall, improving the stability of the assembly effect of the inner tub 3. Simultaneously, during operation, the inner tub 3 is always confined within the internal space of the outer tub 4. The remaining components of the washing machine can be installed between the inner wall of the housing 101 and the outer tub 4, preventing the contraction and expansion of the inner tub 3 from affecting the normal operation of the remaining components within the housing 101. Furthermore, the outer tub 4 enhances the water resistance of the washing machine, preventing water from wetting the remaining components within the housing 101 during the replacement of the inner tub 3.

[0340] In some possible embodiments, the extension path of the pleated portion 309 on the unfolded surface of the inner barrel wall 310 is a straight line, that is, the pleated portion 309 is set as a regular circle, and the pleated portion 309 includes at least two pleats arranged along the axial direction, each pleat being parallel to the other.

[0341] In some possible embodiments, the extension path of the pleats 309 on the unfolded surface of the inner barrel wall 310 is an upward and / or downward curved curve.

[0342] In this embodiment, the pleated portion 309 extends circumferentially around the inner barrel wall 310 while having an upward and / or downward curved arc undulation.

[0343] Preferably, the pleated portion 309 can extend horizontally as a whole, and has multiple upwardly protruding and / or downwardly concave arc-shaped folds along the horizontal extension path; or, the extension path of the pleated portion 309 is a uniform, continuous circumference of upwardly protruding or downwardly concave folds; or, the extension path of the pleated portion 309 is a uniform, continuous wavy line.

[0344] In this embodiment, the pleated portion 309 includes at least two pleats arranged axially, with each pleat being parallel to the others.

[0345] The above-mentioned design allows the shape of the pleats 309 to better adapt to the deformation of the inner tub 3 when it shrinks, thereby improving the squeezing effect of the inner wall of the inner tub 3 on the laundry.

[0346] In some possible embodiments, the pleated portion 309 includes at least one pleat with a straight extension path on the unfolded surface of the inner tub wall 310 and at least one pleat with a curved extension path on the unfolded surface of the inner tub wall 310. This allows the pleated portion 309 to adapt to different forms of contraction of the inner tub 3, further improving the squeezing effect of the inner wall of the inner tub 3 on the laundry.

[0347] In this embodiment, the pleated portion 309 is located at the top of the inner tub wall 310, near the inner tub opening 300. Under normal circumstances, the laundry is placed in the inner tub 3 below the pleated portion 309. That is, after the washing water in the washing machine is drained, the laundry falls into the inner tub 3 below the pleated portion 309. During negative pressure spin-drying, the pleated portion 309 extends downward, and the inner tub wall 310 and the bottom of the inner tub below the pleated portion 309 squeeze the laundry, so that the water attached to the laundry is squeezed out and can be discharged directly from the inner tub drain outlet 305 on the bottom of the inner tub, thereby improving the spin-drying effect.

[0348] Preferably, in this embodiment, the standard water level of the washing machine is set below the pleated portion 309.

[0349] In this embodiment, to achieve the dehydration effect of the inner tub 3 by squeezing the laundry, the airtightness of the inner tub 3 must be ensured. To this end, the bottom of the door 2 is provided with a downwardly protruding sealing portion 203, the shape of which matches the shape of the inner tub opening 300. When the door 2 is closed, the sealing portion 203 is inserted into the inner tub opening 300, and the outer periphery of the door 2 abuts against the top surface of the inner tub opening 300, thereby sealing the inner tub opening 300 and ensuring the airtightness of the inner tub 3.

[0350] In this embodiment, the water inlet of the washing machine flows from the door 2 into the inner tub 3. Specifically, the sealing part 203 of the door 2 is provided with a water inlet 204, and the water inlet pipe 104 of the washing machine extends through the hinge into the interior of the door 2 and is connected to the water inlet 204 to supply water to the inner tub 3.

[0351] In this embodiment, one end of the water inlet pipe 104 is connected to the water source in the user's home, and the other end extends through the hinge to the inside of the door 2 and connects to the water inlet 204 on the sealing part 203 from the inside of the door 2.

[0352] The washing machine's water inlet pipe 104 is equipped with an inlet valve 1041 and a flow meter. The flow meter is communicatively connected to the inlet valve 1041 and is used to detect the amount of water flowing into the inner tub 3, controlling the opening and closing of the inlet valve 1041. Specifically, the flow meter and the inlet valve 1041 can be communicatively connected to the washing machine's control unit. When the inlet valve 1041 is open, the control unit controls the flow meter to operate, acquiring the water inlet volume. The flow meter transmits the detection result to the control unit in real time. When the detected water inlet volume reaches a preset value, the control unit controls the inlet valve 1041 to close.

[0353] Preferably, in this embodiment, the water inlet pipe 104104 is further provided with an instant heating module 105. The instant heating module 105 is located between the water inlet valve 1041 and the inner tub 3, and is communicatively connected to the control unit of the washing machine. When it is necessary to perform high-temperature washing on the laundry, the instant heating module 105 operates. When the water flows through the instant heating module 105, the instant heating module 105 heats the water to a preset temperature. The water inlet pipe 104 then directs the high-temperature water into the inner tub 3 to wash the laundry, improving the washing effect.

[0354] Preferably, in this embodiment, the inlet valve 1041 is configured as an adjustable flow inlet valve 1041, and the inlet valve 1041 controls the flow rate of the inlet water according to the temperature rise of the inlet water flow.

[0355] Specifically, in some possible embodiments, a temperature sensor for detecting the initial temperature of the incoming water flow is disposed upstream of the instant heating module 105, and the temperature sensor is communicatively connected to the control unit of the washing machine. When a high-temperature wash is required, the instant heating module 105 operates, then the water inlet valve 1041 opens, the temperature sensor acquires the initial temperature of the incoming water flow, and transmits it to the control unit. The control unit determines the flow rate of the incoming water flow based on the difference between the preset temperature of the incoming water flow and the initial temperature, and adjusts the opening degree of the water inlet valve 1041 accordingly.

[0356] The difference between the preset temperature and the initial temperature of the incoming water flow is the temperature rise of the incoming water flow. The flow rate of the incoming water flow is inversely proportional to the temperature rise of the incoming water flow. That is, the opening degree of the inlet valve 1041 is inversely proportional to the temperature rise of the incoming water flow.

[0357] In some possible embodiments, a temperature sensor is not required on the water inlet pipe 104. The water inlet valve 1041 has two settings: a first setting with a smaller flow rate and a second setting with a larger flow rate. When the washing machine is running a normal washing program, the water inlet valve 1041 opens to the second setting to supply water to the washing machine at a faster speed. When the washing machine is running a high-temperature washing program, the instant heating module 105 operates first, and then the water inlet valve 1041 opens to the first setting to supply water to the washing machine at a slower speed, ensuring that the incoming water is fully heated at the instant heating module 105. This ensures effective cleaning of laundry during high-temperature washing while simplifying the washing machine's control program and improving the user experience.

[0358] In this embodiment, when the washing machine is in the spin-drying stage, the internal air pressure of the inner tub 3 is lower than the external air pressure, and the inner wall of the inner tub 3 squeezes the laundry to complete the spin-drying process; when the washing machine is in the water inlet stage, the drainage stage, and the washing stage, the internal and external air pressures of the inner tub 3 are balanced.

[0359] To balance the air pressure inside the inner tub 3 with the outside air pressure, a vent 205 communicating with the inner tub 3 is provided at the bottom of the door 2. The vent 205 is located at the bottom of the sealing part 203. The body 1 is provided with a vent valve 1071 communicating with the outside atmosphere. The vent valve 1071 is connected to the vent 205 through an air pipe 107.

[0360] Specifically, one end of the air pipe 107 is connected to the vent valve 1071, and the other end of the air pipe 107 extends through the hinge into the door body 2 and connects to the vent 205 from inside the door body 2. The vent valve 1071 is driven by a stepper motor, which is electrically connected to the control unit of the washing machine. When the washing machine enters the spin-drying stage, the stepper motor drives the vent valve 1071 to close, creating a sealed space inside the inner tub 3. When the washing machine enters the water inlet, drainage, and washing stages, the stepper motor drives the vent valve 1071 to open, maintaining a balance between the internal and external air pressures of the inner tub 3, thus allowing water to flow normally into or out of the inner tub 3.

[0361] In this embodiment, the negative pressure component 7 is connected to the inner tub 3 from the bottom. Specifically, the negative pressure component 7 includes a temporary storage chamber 701 and an air pump 702. The temporary storage chamber 701 is connected to the inner tub drain outlet 305 on the bottom of the inner tub. The input end of the air pump 702 is connected to the temporary storage chamber 701 from the top, and the output end of the air pump 702 is connected to the outside atmosphere. The drain pipe 110 of the washing machine is connected to the temporary storage chamber 701 from the bottom, and a one-way valve is provided on the drain pipe 110.

[0362] Therefore, when the air pump 702 is running, it can extract the air from the temporary storage chamber 701, creating a negative pressure in the temporary storage chamber 701, thereby extracting the water and air from the inner tub 3. After the water and air in the inner tub 3 enter the temporary storage chamber 701, the water and air separate. The water is temporarily stored at the bottom of the temporary storage chamber 701, while the air rises to the top of the temporary storage chamber 701 and is extracted by the air pump 702. When the air pump 702 stops running, the water in the temporary storage chamber 701 is discharged through the drain pipe 110.

[0363] Preferably, in this embodiment, a drain valve 111 is also provided between the temporary storage chamber 701 and the inner tub drain outlet 305. The drain valve 111 is open during drainage and spin-drying, and closed during the washing and water intake stages. By providing the drain valve 111, water in the inner tub 3 can be prevented from entering the temporary storage chamber 701 during water intake and washing processes, allowing the washing machine to operate normally.

[0364] In this embodiment, when the washing machine is in the water inlet stage and the washing stage, the vent valve 1071 is open and the drain valve 111 is closed; when the washing machine enters the draining stage, the vent valve 1071 is open and the drain valve 111 is open; when the washing machine enters the spin-drying stage, the vent valve 1071 is closed, the drain valve 111 is open, and the air pump 702 is running.

[0365] Preferably, in this embodiment, when the washing machine enters the drainage stage, in order to improve the drainage efficiency of the washing machine, the air pump 702 can be turned on at the same time to accelerate the discharge of water from the inner tub 3.

[0366] Preferably, in this embodiment, when the water in the inner tub 3 is completely drained, or the laundry is dehydrated, or the water level in the temporary storage chamber 701 reaches a preset value, the drain valve 111 can be closed and the air pump 702 can be run to inflate the temporary storage chamber 701, so that the water in the temporary storage chamber 701 can be drained more quickly.

[0367] In this embodiment, to prevent water in the temporary storage chamber 701 from entering the air pump 702 and damaging it, a water level sensor is installed in the temporary storage chamber 701 to detect the water level. The water level sensor is communicatively connected to the washing machine's control unit. During spin-drying and draining, the water level sensor monitors the water level in the temporary storage chamber 701 in real time. When the water level in the temporary storage chamber 701 reaches a preset value, the drain valve 111 is closed, and the air pump 702 is turned off or reversed, allowing the water in the temporary storage chamber 701 to be discharged through the drain pipe 110. After the water in the temporary storage chamber 701 is completely drained, or after a preset time for draining the water from the temporary storage chamber 701, the drain valve 111 reopens, and the air pump 702 runs in the forward direction to continue pumping water and air from the inner tub 3.

[0368] In this embodiment, the connection position of the air pump 702 is higher than the preset water level in the temporary storage chamber 701, so as to ensure that the water in the temporary storage chamber 701 will not be drawn out by the air pump 702.

[0369] Preferably, in order to further reduce noise, a silencer 9 is provided at the output end of the air pump 702 in this embodiment.

[0370] In this embodiment, the temporary storage cavity 701 can be installed between the inner wall of the housing 101 and the outer tub 4. Preferably, the shape of the temporary storage cavity 701 can be configured such that one side is adapted to the shape of the inner wall of the housing 101, and the other side of the temporary storage cavity 701 is adapted to the shape of the outer tub 4. That is, the temporary storage cavity 701 can make full use of the space between the inner wall of the housing 101 and the outer tub 4, thereby reducing the size of the washing machine.

[0371] In this embodiment, a pulsator 5 is provided at the bottom of the inner tub. The motor shaft of the washing machine drives the pulsator 5 to rotate and agitate the water and clothes in the inner tub 3 to achieve the purpose of washing.

[0372] The bottom of the inner tub is also provided with a magnet 6 / magnetic component 10, and the bottom of the outer tub is provided with a corresponding magnetic component 10 / magnet 6. The inner tub 3 and the outer tub 4 are connected by magnetic attraction, thereby enabling the inner tub 3 to be replaced and fundamentally avoiding cross-infection.

[0373] Preferably, in this embodiment, the impeller 5 and the magnet 6 / magnetic component 10 are respectively installed on the inner and outer sides of the bottom of the inner tub, and are both installed to the bottom of the inner tub through the tub bottom connector 302.

[0374] In this embodiment, the bucket bottom connector 302 includes a first connector 3021 and a second connector 3022, which are respectively clamped on the inner and outer sides of the inner bucket bottom.

[0375] To ensure the installation stability of the impeller 5 and the magnet 6 / magnetic component 10, the bottom connector 302 is made of a rigid material. Specifically, the bottom connector 302 can be a metal part or a rigid plastic part.

[0376] Preferably, in this embodiment, the magnetic component 10 is disposed at the bottom of the inner tub, and the magnetic component 10 is a stainless steel plate adapted to the shape of the bottom of the inner tub. The magnetic component 10 is attached to the bottom of the inner tub and connected to the bottom of the inner tub by screws. Specifically, the magnetic component 10 is installed below the tub bottom connector 302 by screws.

[0377] The magnet 6 is disposed on the outer side of the bottom of the outer tub. Specifically, in this embodiment, the magnet 6 is configured as a plurality of magnets evenly arranged circumferentially, and the outer side of the bottom of the outer tub is provided with a groove for accommodating the magnet 6, the groove defining the water level position of the magnet 6. A fixing plate 11 is also provided below the bottom of the outer tub, the top of the fixing plate 11 is provided with a support column, the support column abuts against the bottom of the magnet 6, pressing the magnet 6 tightly in the groove, and the fixing plate 11 defining the axial position of the magnet 6.

[0378] In this embodiment, the fixing plate 11 can be installed with the outer tub 4 in any way. Preferably, a threaded post is provided on the bottom of the outer tub, and a screw adapted to the threaded post passes through the fixing plate 11 from below and is installed on the threaded post, thereby securing the fixing plate 11 to the bottom of the outer tub.

[0379] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An inner tub, comprising an inner tub body (301), wherein the inner tub wall (310) of the inner tub body (301) is provided with a pleated portion (309) for providing allowance for deformation of the inner tub body (301), characterized in that, The inner tub body (301) is designed to be symmetrical from left to right; the inner tub body (301) is symmetrical with respect to the axial bisecting planes extending front and rear. The outer periphery of the radial section of the inner barrel body (301) is an annulus formed by arcs with different curvatures, including those with progressively increasing curvatures: The first arc-shaped segment (131) is located on the front side of the inner barrel body (301); The second arc-shaped segment (132) is located on the rear side and the left and right sides of the inner barrel body (301); The third arc segment (133) connects the first arc segment (131) and the second arc segment (132).

2. The inner tub according to claim 1, characterized in that, It also includes a fourth arc segment (134), which is located between the two ends of the third arc segment (133) and the second arc segment (132), and the curvature of the fourth arc segment (134) is less than the curvature of the second arc segment (132).

3. The inner tub according to claim 2, characterized in that, The second arc segment (132) is a semicircle.

4. The inner tub according to claim 1, characterized in that, The top of the inner barrel body (301) is provided with a rigid barrel opening positioning part (303), and the outer periphery of the radial section of the barrel opening positioning part (303) is set to be annular by arcs with different curvatures; And / or, the bottom of the inner barrel body (301) is provided with a rigid barrel bottom connector (302), and the outer periphery of the radial section of the barrel bottom connector (302) is set to be annular by arcs with different curvatures.

5. The inner tub according to any one of claims 1 to 4, characterized in that, The inner circumference of the radial section of the inner tub body (301) is parallel to the outer circumference, or the inner circumference of the radial section of the inner tub body (301) is set to be circular.

6. The inner tub according to any one of claims 1 to 4, characterized in that, The inner tub body (301) is provided with multiple tubs for washing different types of clothing and / or for washing different users' clothing, and each inner tub body (301) is provided with different identification marks.

7. The inner tub according to claim 6, characterized in that, Identify the color and / or pattern of the inner barrel body (301); The inner tub body (301) used for washing different types of clothes, and / or used for washing different users' clothes, has different colors and / or patterns.

8. The inner tub according to claim 6, characterized in that, A pulsator (5) is installed on the bottom of the inner tub (3) of the inner tub body (301); The pulsator (5) inside the inner tub body (301) used for washing different types of clothes has a different shape.

9. A washing machine, comprising a housing (101), characterized in that, The housing (101) has a receiving cavity, the shape of which is adapted to the shape of the inner barrel (3) as described in any one of claims 1 to 8; the inner barrel (3) is detachably installed in the receiving cavity and magnetically connected to the inner wall of the receiving cavity; It also includes a negative pressure assembly (7) connected to the inner tub (3) for absorbing water and air in the inner tub (3).

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