Antifouling washing machine and washing inner drum assembly thereof

Abstract

According to the washing inner cylinder assembly, the design of two cylinder shells which are sleeved in a double-layer mode replaces the design of a single inner cylinder in the current common design, the outer sleeve shell of the inner cylinder assembly in the design is used for water insulation and drainage, that is, the space outside the outer sleeve shell has no water function, and the space between the outer sleeve shell and a washing machine shell is kept clean; on the basis, the inner barrel shell is used for containing washing water and clothes, the washing water and the clothes are driven through rotation of the washing impeller at the bottom in the normal washing state, and due to the fact that the upper drainage hole is located in the high position of the inner barrel shell, the washing water and the clothes cannot overflow through the drainage hole in the normal washing state, so that cleanliness is kept; water flow can flow upwards and be discharged through the upper drainage holes under the action of centrifugal force, residual foam stains are difficult to discharge from the drainage holes due to lighter texture, so that impurities are difficult to enter an interlayer between the inner barrel shell and the outer sleeve shell, and pollution in the interlayer is avoided. The utility model further provides an antifouling washing machine comprising the washing inner drum assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a washing machine inner drum assembly and also to an anti-fouling washing machine. Background Art

[0002] The traditional fully automatic washing machine is composed of an inner barrel (washing barrel) and an outer barrel (water barrel). There is a layer between the inner barrel and the outer barrel, which cannot be cleaned by the user, resulting in residual dirt, breeding bacteria, and secondary pollution to the washing water and washed clothes. In order to solve the above technical problems, there are also designs on the market that improve the barrel distribution structure to solve this problem. For example, some designs adopt a complete single-barrel design, that is, only a rotating barrel is set without a water barrel. In this way, the water is in the rotating barrel during washing, which is more water-saving. A water guide shield is set on the inner circumferential wall of the rotating barrel, a water inlet is set on the water guide shield, and a water outlet is set on the circumferential wall and / or bottom wall of the rotating barrel. During dehydration, the water in the rotating barrel rises under the action of centrifugal force and enters the water guide shield from the water inlet. Under the guidance of the water guide shield, it flows to the water outlet, and then is discharged to the water receiving tray through the water outlet. Therefore, while eliminating the water barrel to simplify the structure, increase the capacity, reduce the breeding of dirt and bacteria, and save water, the dehydration effect can be improved at the same time.

[0003] However, in actual use, such a design often suffers from rapid wear of the sealing structure, and its service life is much shorter than that of the traditional design. Moreover, when the sealing structure fails, it will affect the normal operation of the washing machine. It can be seen that solving the problem of dirt hiding between the layers of the washing drum will cause a series of other usage problems, and a good practical effect cannot be achieved. Obviously, there is no such good anti-fouling solution.

[0004] In summary, the existing fully automatic washing machines have the technical problem that the interlayer between the inner drum and the outer drum is easy to hide dirt, which is easy to cause secondary pollution to the washed clothes. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing fully automatic washing machine has the technical problem that the interlayer between the inner drum and the outer drum is easy to hide dirt, which is easy to cause secondary pollution to the washed clothes.

[0006] To solve the above problems, the utility model provides a washing inner drum assembly for a dirt-proof washing machine, comprising an inner drum shell and an outer shell, wherein the inner drum shell is coaxially rotatably accommodated in the outer shell, and the inner drum shell is used to cooperate with a washing impeller rotating at its inner bottom to complete a washing process, and the inner side wall of the inner drum shell is evenly distributed with a plurality of upper drainage holes near a position close to the top opening, which are used to drain water to a gap between the inner drum shell and the outer shell through the upper drainage holes, and the inner side wall of the inner drum shell is evenly distributed with a plurality of guide grooves along the height direction, and the upper drainage holes are spatially connected with the top position of the guide grooves, and the water flow is guided through the guide grooves to pass through the drainage holes while reducing stains and impurities that may be carried by the overflowing foam and other water flow.

[0007] The utility model provides a novel inner drum assembly design, which replaces the single inner drum design in the current general design with a double-layer sleeved two drum shell design. In the design, the outer shell of the inner drum assembly is used for water isolation and drainage, that is, the space outside the outer shell has no water function, so as to keep the space between the inner drum assembly and the outer shell of the washing machine clean; on this basis, the inner drum shell is used to contain washing water and clothes, and is driven by the rotation of the washing impeller at the bottom in the normal washing state. Since the upper drainage hole is located at a high position of the inner drum shell, the water will not overflow through the drainage hole in the normal washing state, so as to keep it clean. When it comes to the spin-drying and drainage process, due to the high-position design of the upper drainage, the washing water and clothes can be kept clean. , water can flow upward through the upper drainage hole under the action of centrifugal force, while residual foam stains are difficult to be discharged from the drainage hole due to their lighter texture, so impurities are difficult to enter the interlayer between the inner drum shell and the outer drum shell, and multiple guide grooves along the height direction are set to enable water to enter the upper drainage hole more smoothly, and fully separate from floating impurities in the process, eliminate or reduce possible overflowing foam. In addition, it should be noted that a normal bottom drainage hole is retained at the bottom of the inner drum shell to ensure normal operation of the washing machine. This design effectively solves the problem that dirt and grime are easily hidden between the two layers of washing drums of fully automatic washing machines, which contaminates the washed clothes.

[0008] As a preferred solution, the guide groove is in the shape of a linear groove, and the groove depth increases from the washing impeller to the fixed opening of the drum. This design provides a preferred guide groove structure design, which adopts a linear groove structure design, and the groove depth of the linear groove increases from the impeller to the opening or from bottom to top. This groove depth design allows the inner drum assembly to accurately discharge the drained water from the upper drainage hole when the clothes are being dried, without forming temporary water accumulation at the upper opening position, which can effectively avoid the backflow of the drained water.

[0009] As a preferred solution, the inner wall of the inner drum shell is provided with a raised clothes-rubbing rod structure in the gap between each adjacent guide groove. Through research, it is found that the water hole structure densely distributed on the inner wall of the washing drum in the general design has the advantage of enhancing the washing effect to a certain extent, but it is easy to scratch the clothes and is also an important reason for the accumulation of dirt in the interlayer. Therefore, a structural design is provided here to replace the water holes on the inner drum, using a raised clothes-rubbing rod structure. This design ensures that the auxiliary washing achieves a good cleaning effect, while the side water holes are not easy to damage the clothes.

[0010] As a preferred solution, the clothes-rubbing bar structure is a straight arc chamfered boss parallel to the guide groove. This design provides a preferred clothes-rubbing bar structure design, which adopts the arc chamfered boss design, mainly considering to avoid scratching clothes, and the vertical clothes-rubbing bar can also fully form a local vortex when the internal water flow rotates and stirs to enhance the washing and cleaning effect.

[0011] As a preferred solution, the guide groove and the rubbing rib structure are formed by stamping the inner cylinder shell. This design provides a preferred inner cylinder shell structure processing solution, which is formed in one step by stamping from the inside to the outside of the cylinder. This design has a good molding effect, is easy to implement, and reduces the cost of cylinder shell processing.

[0012] As a preferred solution, multiple lower drainage holes are evenly distributed near the washing wheel at the bottom of the inner drum shell, and the lower drainage holes are connected to the gap between the inner drum shell and the outer shell for drainage. This design optimizes the drainage design at the bottom of the inner drum shell, mainly for emptying. The lower drainage holes at the bottom are directly emptied to the bottom drainage pipe to avoid residual impurities between the drum shell interlayers.

[0013] As a preferred solution, an annular sealing port structure is provided at the top opening of the inner cylinder shell and the outer cylinder shell, and the sealing port structure is used to install a sealing upper cover adapted to the inner cylinder assembly, and the lower part of the sealing port structure extends to block the upper drainage hole located near the top of the inner cylinder shell at a preset interval. This design provides a shielding design for the upper drainage hole at the top of the inner cylinder shell, which can further prevent foam impurities from entering the upper drainage hole with water during the spin-drying process, thereby avoiding entering the interlayer between the inner cylinder and the outer cylinder.

[0014] The utility model also provides an anti-fouling washing machine, comprising an outer casing and a washing inner drum assembly integrally contained in the outer casing, wherein a circuit module and an interaction module are arranged on the outer casing, and the washing inner drum assembly is any of the above-mentioned washing inner drum assemblies. Since the above-mentioned washing inner drum assembly has the above-mentioned beneficial effects, an anti-fouling washing machine equipped with the washing inner drum assembly should also have corresponding beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of the overall external structure of a washing inner drum assembly provided by the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the side cross-section structure of the washing inner drum assembly;

[0017] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the side section of the washing inner drum assembly.

[0018] in, Figure 1-Figure 3 middle:

[0019] 1. Outer shell; 2. Inner shell; 2-1. Guide groove; 2-2. Clothes rubbing bar structure; 2-3. Lower drainage hole; 2-4. Upper drainage hole; 3. Sealed port structure. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Before explaining the working principle of the present invention in detail, the description of the present invention needs to be further explained: In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or a welding connection between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] refer to Figure 1-Figure 3 The following embodiments are described, Figure 1 This is a schematic diagram of the overall external structure of a washing inner drum assembly provided by the utility model; Figure 2 for Figure 1 A schematic diagram of the side cross-section structure of the washing inner drum assembly; Figure 3 for Figure 2 Schematic diagram of the exploded structure of the side section of the washing inner drum assembly.

[0024] The washing inner drum assembly provided in this embodiment is used for an anti-fouling washing machine, and includes an inner drum shell 2 and an outer shell 1. The inner drum shell 2 is coaxially rotatably accommodated in the outer shell 1. The inner drum shell 2 is used to cooperate with the washing pulsator rotating at its inner bottom to complete the washing process. The inner side wall of the inner drum shell 2 is evenly distributed with a plurality of upper drainage holes 2-4 near the position close to the top opening, which are used to drain water to the gap between the inner drum shell 2 and the outer shell 1 through the upper drainage holes 2-4. The inner side wall of the inner drum shell 2 is evenly distributed with a plurality of guide grooves 2-1 along the height direction. The upper drainage holes 2-4 are spatially connected with the top position of the guide grooves 2-1, and the water flow is guided through the guide grooves 2-1 while reducing overflow foam.

[0025] The utility model provides a novel inner drum assembly design, which replaces the single inner drum design in the current general design with a double-layer sleeved two drum shell design. In the design, the outer shell 1 of the inner drum assembly is used for water isolation and drainage, that is, the space outside the outer shell 1 has no water function, so as to keep the space between the outer shell and the washing machine shell clean; on this basis, the inner drum shell 2 is used to contain washing water and clothes, and is driven by the rotation of the washing impeller at the bottom in the normal washing state. Since the upper drainage holes 2-4 are located at a high position of the inner drum shell 2, overflow will not occur through the drainage holes in the normal washing state, so as to keep it clean. When it comes to the spin-drying and drainage process, due to the high-position design of the upper drainage, Water can flow upward through the upper drainage hole under the action of centrifugal force, and residual foam stains are difficult to be discharged from the drainage hole due to their lighter texture. Therefore, impurities are difficult to enter the interlayer between the inner drum shell 2 and the outer shell 1. A plurality of guide grooves 2-1 along the height direction are provided to enable water to enter the upper drainage hole 2-4 more smoothly, and fully separate from floating impurities in the process, eliminate or reduce foam that may overflow. In addition, it should be noted that a normal bottom drainage hole is retained at the bottom of the inner drum shell 2 to ensure normal operation of the washing machine. This design effectively solves the problem that dirt and grime are easily hidden between the two layers of the washing drum of the fully automatic washing machine, which contaminates the washed clothes.

[0026] In the technical solution provided in this embodiment, the guide groove 2-1 is in the shape of a linear trough, and the depth of the groove increases from the washing impeller to the fixed opening of the drum. This design provides a preferred structure design of the guide groove 2-1, which adopts the structure design of a linear trough, and the groove depth of the linear trough increases from the impeller to the opening or from bottom to top. This groove depth design allows the inner drum assembly to accurately discharge the drained water from the upper drainage hole 2-4 when the clothes are being dried, without forming temporary water accumulation at the upper opening position, which can effectively avoid the backflow of the drained water.

[0027] In the technical solution provided in this embodiment, the inner wall of the inner drum shell 2 is provided with a raised clothes-rubbing rod structure 2-2 in the gap between each adjacent guide groove 2-1. It is found through research that the water hole structure densely distributed on the inner wall of the washing drum in the general design has the advantage of enhancing the washing effect to a certain extent, but it is easy to scratch the clothes and is also an important reason for the accumulation of dirt in the interlayer. Therefore, a structural design is provided here to replace the water holes on the inner drum, using a raised clothes-rubbing rod structure 2-2. This design ensures that the auxiliary washing achieves a good cleaning effect, while the side water holes are not easy to damage the clothes.

[0028] In the technical solution provided in this embodiment, the clothes-rubbing bar structure 2-2 is a straight arc chamfered boss parallel to the guide groove 2-1. This design provides a preferred design of the clothes-rubbing bar structure 2-2, which adopts the arc chamfered boss design, mainly considering to avoid scratching clothes, and the vertical clothes-rubbing bar can also fully form a local vortex when the internal water flow rotates and stirs to enhance the washing and cleaning effect.

[0029] In the technical solution provided in this embodiment, the guide groove 2-1 and the rubbing rib structure 2-2 are both formed by stamping the inner cylinder shell 2. This design provides an optimal inner cylinder shell 2 structural processing solution, which is formed in one step by stamping from the inside to the outside of the cylinder. This design has a good molding effect, is easy to implement, and reduces the cost of cylinder shell processing.

[0030] In the technical solution provided in this embodiment, a plurality of lower drainage holes 2-3 are evenly distributed near the washing pulsator position at the bottom of the inner drum shell 2, and the lower drainage holes 2-3 are connected to the gap between the inner drum shell 2 and the outer shell 1 for drainage. This design optimizes the drainage design at the bottom of the inner drum shell 2, which is mainly used for emptying. The lower drainage holes 2-3 at the bottom are directly emptied to the bottom drainage pipe to avoid residual impurities and pollution between the drum shell interlayers.

[0031] In the technical solution provided in this embodiment, an annular sealing port structure 3 is provided at the top opening position of the inner cylinder shell 2 and the outer cylinder shell 1. The sealing port structure 3 is used to install the sealing upper cover adapted to the inner cylinder assembly, and the lower part of the sealing port extends to block the upper drainage hole 2-4 located near the top of the inner cylinder shell 2 at a preset interval. This design provides a shielding design for the upper drainage hole 2-4 at the top of the inner cylinder shell 2, which can further prevent foam impurities from entering the upper drainage with water during the spin-drying process, thereby avoiding entering the interlayer between the inner cylinder and the outer cylinder.

[0032] This embodiment provides an anti-fouling washing machine, comprising an outer casing and a washing inner drum assembly which is entirely contained in the outer casing, wherein a circuit module and an interaction module are arranged on the outer casing, and the washing inner drum assembly is the washing inner drum assembly in any of the above embodiments. Since the washing inner drum assembly in the above embodiments has the above beneficial effects, an anti-fouling washing machine having the washing inner drum assembly should also have corresponding beneficial effects.

[0033] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A washing drum assembly for a stain-proof washing machine, characterized in that: The invention comprises an inner drum shell (2) and an outer drum shell (1), wherein the inner drum shell (2) is coaxially rotatably accommodated in the outer drum shell (1), and the inner drum shell (2) is used to cooperate with a washing wheel rotating at its inner bottom to complete a washing process, and the inner side wall of the inner drum shell (2) is evenly distributed with a plurality of upper drainage holes (2-4) near a position close to a top opening, and is used to drain water to a gap between the inner drum shell (2) and the outer drum shell (1) through the upper drainage holes (2-4), and the inner side wall of the inner drum shell (2) is evenly distributed with a plurality of guide grooves (2-1) along a height direction, and the upper drainage holes (2-4) are spatially connected with the top position of the guide grooves (2-1), and water is guided to flow through the drainage holes (2-4) through the guide grooves (2-1).

2. The washing inner drum assembly according to claim 1, characterized in that: The guide groove (2-1) is in the shape of a straight groove, and the groove depth increases gradually along the direction from the washing pulsator to the fixed opening of the drum.

3. The washing inner drum assembly according to claim 2, characterized in that: The inner side wall of the inner cylinder shell (2) is provided with a raised clothes-rubbing rib structure (2-2) in the gap between each adjacent guide groove (2-1).

4. The washing inner drum assembly according to claim 3, characterized in that: The clothes-rubbing rib structure (2-2) is a linear arc chamfered boss parallel to the guide groove (2-1).

5. The washing inner drum assembly according to claim 3, characterized in that: The guide groove (2-1) and the clothes-rubbing rib structure (2-2) are both formed by stamping the inner cylinder shell (2).

6. The washing inner drum assembly according to any one of claims 1 to 5, characterized in that: A plurality of lower drainage holes (2-3) are evenly distributed near the washing wheel at the bottom of the inner drum shell (2), and the lower drainage holes (2-3) are connected to the gap between the inner drum shell (2) and the outer shell (1) for drainage.

7. The washing inner drum assembly according to claim 6, characterized in that: An annular sealing port structure (3) is provided at the top opening positions of the inner cylinder shell (2) and the outer cylinder shell (1), and the sealing port structure (3) is used to install a sealing upper cover adapted to the inner cylinder assembly, and the lower part of the sealing port structure (3) extends to block above the upper drainage hole (2-4) located near the top of the inner cylinder shell (2) at a preset interval.

8. An anti-fouling washing machine, comprising an outer casing and a washing inner drum assembly contained entirely within the outer casing, wherein a circuit module and an interaction module are disposed on the outer casing, characterized in that: The washing inner drum assembly is the washing inner drum assembly as described in any one of claims 1-7.

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