Inner barrel assembly and washing machine
By designing a non-metallic shell sealing flange in the inner tub assembly of the pulsator washing machine, the problem of flange corrosion was solved, achieving reliable protection and a compact structure, and extending service life.
Patent Information
- Application Number
- CN202423263511.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-27
AI Technical Summary
The flange of a top-loading washing machine is prone to rust in humid environments, and the existing electrophoretic coating is easy to peel off, leading to rust problems on the flange surface.
Design an inner tank assembly in which a flange is installed at the bottom of a base and covers the opening, a non-metallic shell has a sealing cavity, and the flange body is installed in the sealing cavity. The non-metallic shell is used to seal and protect the flange, avoiding direct contact with the liquid.
It effectively prevents flange corrosion, extends the service life of the inner tub assembly and washing machine, improves protection reliability, reduces space occupation, and has a compact structure.
Smart Images

Figure CN223723397U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of household appliances, specifically relates to a inner drum assembly and washing machine. BACKGROUND
[0002] In the pulsator washing machine, the flange plate is a key structural member for connecting the inner drum of the washing machine. Since the flange plate is a metal piece and often in a humid environment, the flange plate often has rust problems. In the related art, although the flange plate is provided with an electrophoretic coating for rust prevention, the electrophoretic coating on the surface of the flange plate is prone to fall off after a long period of use, thereby causing the flange plate surface to be prone to rust. SUMMARY
[0003] The utility model aims at solving one of the technical problems in the related art at least to some extent.
[0004] To this end, the embodiment of the utility model provides an inner drum assembly, the flange plate of the inner drum assembly is not prone to rust, which is beneficial to prolong the service life of the inner drum assembly.
[0005] The embodiment of the utility model also provides a washing machine.
[0006] The inner drum assembly of the embodiment of the utility model comprises: an inner drum, the inner drum comprises a base, the base is provided with an open top; a flange plate, the flange plate is installed at the bottom of the base and covers the open top, the flange plate comprises a flange body and a non-metallic shell, a sealed cavity is arranged in the non-metallic shell, and the flange body is installed in the sealed cavity.
[0007] According to the inner drum assembly of the embodiment of the utility model, since the flange plate is installed at the bottom of the base and covers the open top, the flange plate can transmit the power of the driving motor to the base, and the flange plate and the inner drum can rotate synchronously. Since the non-metallic shell is provided with a sealed cavity and the flange body is installed in the sealed cavity, the non-metallic shell can seal and protect the flange plate to avoid direct contact between the flange body and the liquid, so that the flange plate is not prone to rust, which is beneficial to prolong the service life of the inner drum assembly.
[0008] In some embodiments, the non-metallic shell is a plastic-coated shell.
[0009] In some embodiments, the thickness of the plastic-coated shell is M, wherein 0.1mm≤M≤5mm.
[0010] In some embodiments, the outer peripheral wall of the flange plate is provided with a groove, the groove is recessed inward along the radial direction of the flange plate, the groove is a plurality of, and the plurality of grooves are arranged at intervals along the circumferential direction of the flange plate.
[0011] In some embodiments, the flange plate is provided with a first mounting hole penetrating through the flange plate in the axial direction, the first mounting hole is arranged adjacent to the outer edge of the flange plate, and the first mounting hole is arranged between two adjacent grooves in the circumferential direction of the flange plate, and the inner bucket assembly further comprises a first fastener penetrating through the first mounting hole and the base.
[0012] In some embodiments, the outer periphery of the flange plate is substantially circular, the flange plate is provided with a plurality of first mounting holes penetrating through the flange plate in the axial direction, and the plurality of first mounting holes are arranged at equal intervals in the circumferential direction of the flange plate, and the inner bucket assembly further comprises a first fastener penetrating through the first mounting hole and the base.
[0013] In some embodiments, the flange plate is provided with an axial hole and a second mounting hole penetrating through the flange plate in the axial direction, and the inner bucket assembly further comprises a shaft sleeve and a second fastener, the shaft sleeve is arranged at the lower end of the flange plate and is located on the same axis as the axial hole, the shaft sleeve has a flange, and the second fastener penetrates through the second mounting hole and the flange in the direction from top to bottom.
[0014] In some embodiments, the upper end of the second mounting hole has a limiting groove, the limiting groove is formed on the non-metallic shell, and the inner bucket assembly further comprises a gasket, the gasket is sleeved on the second fastener and located in the limiting groove.
[0015] In some embodiments, the bottom surface of the base is provided with a plurality of reinforcing ribs, the reinforcing ribs extend in the radial direction of the base, and the plurality of reinforcing ribs are arranged at intervals in the circumferential direction of the base.
[0016] Another embodiment of the washing machine of the utility model comprises the inner bucket assembly of any one of the embodiments of the utility model.
[0017] According to the washing machine of the embodiment of the utility model, since the flange plate is installed at the bottom of the base and covers the opening, the flange plate can transmit the power of the driving motor to the base, and the flange plate and the inner bucket can rotate synchronously. Since the non-metallic shell is provided with a sealed cavity and the flange body is installed in the sealed cavity, the non-metallic shell can seal and protect the flange plate, so as to avoid direct contact between the flange body and the liquid, so that the flange plate is not easy to rust, and the service life of the washing machine is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is the perspective view of the inner bucket assembly of the embodiment of the utility model.
[0019] Figure 2 is the perspective view of the inner bucket assembly of the embodiment of the utility model from another viewing angle.
[0020] Figure 3 This is a front view of the inner barrel assembly according to an embodiment of the present utility model.
[0021] Figure 4 This is a schematic diagram of the installation of the flange, bushing and connecting shaft of the inner barrel assembly according to an embodiment of the present invention.
[0022] Figure 5 This is an installation cross-sectional view of the flange, bushing, and connecting shaft of the inner barrel assembly according to an embodiment of this utility model.
[0023] Figure 6 yes Figure 5 A magnified view of A in the middle.
[0024] Figure 7 This is a perspective sectional view of the flange, bushing, and connecting shaft of the inner barrel assembly according to an embodiment of the present utility model.
[0025] Figure label:
[0026] 1. Base; 11. Opening; 12. Reinforcing rib; 13. Recessed part;
[0027] 2. Flange; 21. Flange body; 22. Non-metallic shell; 221. Plastic-coated shell; 222. Sealing cavity; 23. Groove; 24. First mounting hole; 25. Second mounting hole; 26. Shaft hole; 27. Limiting groove;
[0028] 31. First fastener; 32. Second fastener; 33. Washer; 34. Bushing; 341. Flange; 35. Connecting shaft. Detailed Implementation
[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0030] The following is a reference appendix. Figures 1 to 7 This invention describes an inner tub assembly and a washing machine according to embodiments of the present invention.
[0031] like Figures 1 to 7 As shown, the inner tub assembly of this utility model embodiment includes: an inner tub and a flange 2. The inner tub includes a base 1 with an opening 11. The flange 2 is installed at the bottom of the base 1 and covers the opening 11. The flange 2 includes a flange body 21 and a non-metallic shell 22. A sealing cavity 222 is provided inside the non-metallic shell 22, and the flange body 21 is installed inside the sealing cavity 222.
[0032] According to the embodiment of the utility model, since the flange plate 2 is installed at the bottom of the base 1 and covers the opening 11, the flange plate 2 can transmit the power of the driving motor to the base 1, and the flange plate 2 and the inner barrel can rotate synchronously. Since the nonmetallic shell 22 is provided with a sealed cavity 222, and the flange body 21 is installed in the sealed cavity 222, the nonmetallic shell 22 can seal and protect the flange plate 2, so as to avoid the direct contact of the flange body 21 with liquid, so that the flange plate 2 is not easy to rust, and the service life of the inner barrel assembly is prolonged.
[0033] On the other hand, compared with the scheme of arranging an electrophoretic layer on the surface of the flange plate 2, the inner barrel assembly of the embodiment of the utility model seals the flange body 21 by arranging the nonmetallic shell 22, and the nonmetallic shell 22 is not easy to separate from the flange body 21, so as to improve the reliability of the protection of the flange body 21. Moreover, the flange plate 2 does not need to be provided with other waterproof structures, so as to reduce the space occupation and compact the structure.
[0034] Optionally, as shown in Figures 4 to 6 It can be understood that the outer wall surface of the flange body 21 is covered with a plastic shell by using a plastic coating process, so as to further improve the waterproof sealing effect of the nonmetallic shell 22.
[0035] For example, the material of the plastic coated shell 221 is PP plastic material.
[0036] Optionally, as shown in Figure 6 The thickness of the plastic coated shell 221 is M, wherein 0.1mm≤M≤5mm. For example, the thickness M of the plastic coated shell 221 can be 0.1mm, 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm.
[0037] The inventors of the utility model have found through experimental research that when the thickness M of the plastic coated shell 221 is less than 0.1mm, the nonmetallic shell 22 (i.e. the plastic coated shell 221) is easy to be damaged due to collision, and then the flange body 21 is easy to contact with liquid outside, which leads to poor waterproof effect of the flange. When the thickness M of the plastic coated shell 221 is greater than 5mm, on the one hand, the production cost of the flange plate 2 is high, and on the other hand, the overall size of the flange plate 2 is thick, which increases the overall axial height of the inner barrel assembly, and is not conducive to the compact design of the washing machine. Therefore, the flange assembly of the embodiment of the utility model adopts the above size design of the plastic coated shell 221, which not only ensures the anti-rust effect of the flange plate 2 as a whole, but also has a compact structure and low production cost.
[0038] Optionally, as shown in Figure 4As shown, the outer peripheral wall of the flange plate 2 is provided with grooves 23 recessed inward in the radial direction of the flange plate 2, and the grooves 23 are arranged at intervals in the circumferential direction of the flange plate 2. In this way, the overall weight of the flange plate 2 can be reduced, which is conducive to the lightweight design of the flange plate 2.
[0039] For example, as shown in Figure 2 and Figure 4 As shown, the base 1 is provided with recessed portions 13 corresponding to the grooves 23, and the recessed portions 13 and the grooves 23 are arranged opposite to each other in the up-down direction when the flange plate 2 is correctly positioned with the base 1. When the flange plate 2 is incorrectly positioned with the base 1 during installation, the recessed portions 13 and the grooves 23 are staggered in the circumferential direction of the flange plate 2, so as to remind the operator to reposition and install the flange plate 2.
[0040] Optionally, as shown in Figure 4 The flange plate 2 is provided with first mounting holes 24 penetrating in the axial direction thereof, and the first mounting holes 24 are arranged adjacent to the outer edge of the flange plate 2, and in the circumferential direction of the flange plate 2, the first mounting holes 24 are arranged between two adjacent grooves 23. The inner basket assembly further comprises first fasteners 31 penetrating the first mounting holes 24 and the base 1. It can be understood that the first fasteners 31 can fix the flange plate 2 and the base 1, so as to ensure that the flange plate 2 and the base 1 can rotate synchronously. Since the first mounting holes 24 are arranged between two adjacent grooves 23 in the circumferential direction of the flange plate 2, the overall structural strength of the flange plate 2 can be improved.
[0041] In an example, the outer peripheral contour of the flange plate 2 is generally circular, and the flange plate 2 is provided with a plurality of first mounting holes 24 penetrating in the axial direction thereof, and the first mounting holes 24 are arranged at intervals in the circumferential direction of the flange plate 2. The inner basket assembly further comprises first fasteners 31 penetrating the first mounting holes 24 and the base 1. In this way, the stability and firmness of the flange plate 2 after installation can be improved.
[0042] For example, as shown in Figure 2 and Figure 4 The first mounting holes 24 are three, and the three first mounting holes 24 are arranged at intervals in the circumferential direction of the flange plate 2. The first fasteners 31 are three and correspondingly penetrate the three first mounting holes 24.
[0043] In some embodiments, as shown in Figures 5 to 7As shown, the flange plate 2 is provided with an axial hole 26 and a second mounting hole 25, the inner bucket assembly further comprises a shaft sleeve 34 and a second fastener 32, the shaft sleeve 34 is arranged at the lower end of the flange plate 2 and is coaxial with the axial hole 26, the shaft sleeve 34 has a flange 341, and the second fastener 32 is arranged in the second mounting hole 25 and the flange 341 in the direction from top to bottom. The flange assembly of the embodiment of the utility model can improve the connection strength of the shaft sleeve 34 and the flange plate 2 by connecting the shaft sleeve 34 and the flange plate 2 in the above manner, and is convenient to disassemble.
[0044] For example, the second fastener 32 is a threaded part. When the operator needs to disassemble the inner bucket from the outer bucket, the operator can insert a wrench into the inner bucket in the direction from top to bottom and rotate the upper end cap of the second fastener 32 to separate the second fastener 32 from the flange plate 2 and the shaft sleeve 34, so that the flange plate 2 and the shaft sleeve 34 can be separated, and the operator can remove the inner bucket from the outer bucket.
[0045] Optionally, as shown in Figures 6 to 7 As shown, the upper end of the second mounting hole 25 is provided with a limiting groove 27, the limiting groove 27 is formed on the non-metal shell 22, and the inner bucket assembly further comprises a gasket 33, the gasket 33 is sleeved on the second fastener 32 and located in the limiting groove 27. It can be understood that the depth of the limiting groove 27 is less than the thickness of the non-metal shell 22, so that liquid can be prevented from entering the sealing cavity 222 of the non-metal shell 22. The limiting groove 27 can position the gasket 33, so as to improve the stability of the installation of the gasket 33 and the second fastener 32.
[0046] As shown in Figure 1 and Figure 5 As shown in Figure 5 As shown, the shaft sleeve 34 is provided with a connecting shaft 35, and the upper end of the connecting shaft 35 is used for driving connection with the impeller (not shown).
[0047] In some embodiments, as shown in Figure 1 The bottom surface of the base 1 is provided with a plurality of reinforcing ribs 12, the reinforcing ribs 12 extend in the radial direction of the base 1, and the plurality of reinforcing ribs 12 are arranged at intervals in the circumferential direction of the base 1. Therefore, the structural strength of the base 1 can be improved, and the service life of the base 1 can be prolonged.
[0048] The washing machine of another embodiment of the utility model comprises the inner bucket assembly of the utility model.
[0049] According to the embodiment of the utility model, since the flange plate 2 is installed at the bottom of the base 1 and covers the opening 11, the flange plate 2 can transmit the power of the driving motor to the base 1, and the flange plate 2 and the inner drum can rotate synchronously.
[0050] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0051] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0052] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0053] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0054] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.
[0055] Although the above embodiments have been shown and described, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Changes, modifications, replacements and variations of the above embodiments made by those skilled in the art are within the scope of the present application.
Claims
1. A tub assembly comprising: The inner tub comprises a base provided with an opening; The flange plate is installed at the bottom of the base and covers the opening, and comprises a flange body and a non-metallic shell, wherein the non-metallic shell is provided with a sealing cavity, and the flange body is installed in the sealing cavity. The non-metallic shell is a plastic-coated shell.
2. The inner tub assembly of claim 1, wherein, The thickness of the plastic-coated shell is M, wherein 0.1mm≤M≤5mm.
3. The inner tub assembly of claim 2, wherein, The outer peripheral wall of the flange plate is provided with grooves recessed inward along the radial direction of the flange plate, and the grooves are arranged at intervals along the circumferential direction of the flange plate.
4. The inner tub assembly of claim 1, wherein The flange plate is provided with a first mounting hole penetrating in the axial direction thereof, and the first mounting hole is arranged adjacent to the outer edge of the flange plate, and in the circumferential direction of the flange plate, the first mounting hole is arranged between two adjacent grooves, and the inner tub assembly further comprises a first fastener penetrating the first mounting hole and the base.
5. The inner tub assembly of claim 4, wherein The outer peripheral contour of the flange plate is generally circular, and the flange plate is provided with a plurality of first mounting holes penetrating in the axial direction thereof, and the first mounting holes are arranged at equal intervals along the circumferential direction of the flange plate, and the inner tub assembly further comprises a first fastener penetrating the first mounting hole and the base.
6. The inner tub assembly of claim 1, wherein, The flange plate is provided with an axial hole and a second mounting hole penetrating in the axial direction thereof, and the inner tub assembly further comprises a shaft sleeve and a second fastener, wherein the shaft sleeve is arranged at the lower end of the flange plate and is located on the same axis as the axial hole, the shaft sleeve has a flange, and the second fastener penetrates the second mounting hole and the flange in the direction from top to bottom. 7.The inner tub assembly of claim 1, wherein The upper end of the second mounting hole is provided with a limiting recess, and the limiting recess is formed on the non-metallic shell, and the inner tub assembly further comprises a gasket sleeved on the second fastener and located in the limiting recess. 8.The inner tub assembly of claim 7, wherein The bottom surface of the base is provided with a plurality of reinforcing ribs extending along the radial direction of the base, and the reinforcing ribs are arranged at intervals along the circumferential direction of the base. 9.The inner tub assembly of claim 1, wherein The inner tub assembly of any one of claims 1-9 is included.
10. A laundry machine characterized by