A cleaning machine

By using metal materials for the inner tank body and bottom, combined with the complex structure of the plastic base, the problems of water diversion and drying of the dishwasher inner tank are solved, resulting in improved adaptability, reduced production costs, and enhanced sealing and reliability.

CN224474395UActive Publication Date: 2026-07-10NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FOTILE KITCHEN WARE CO LTD
Filing Date
2025-06-09
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing dishwashers have poor airflow and drying effects due to their plastic inner tubs, while metal inner tubs have poor structural strength and high production costs, and require significant equipment investment when their dimensions change.

Method used

It adopts a combination structure of metal inner tank body, bottom and plastic base. The complex structure formed on the plastic base is easy to produce. The metal inner tank covers the water return area to improve the flow and drying effect. The inner tank splicing method is simple and easy to operate, and it can adapt to changes in inner tank size without additional equipment investment.

Benefits of technology

It improves the flow and drying effect of the inner liner, enhances the sealing performance, simplifies the production process, and reduces equipment investment and development cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of cleaning machines, inner bag includes inner bag main body and inner bag bottom, inner bag bottom covers on the upper surface of pedestal, the upper edge of inner bag bottom extends outward and forms supporting edge, pedestal side wall is higher than inner bag bottom and is shaped with the supporting table for supporting edge to support on it, the lower edge of inner bag main body is abutted on supporting edge and is spliced with inner bag bottom as an organic whole.Inner bag can be used metal material, and pedestal uses plastic material, and the complex structure such as shaped water return area on plastic pedestal is convenient for production, using metal inner bag bottom covers in water return area periphery and constitutes inner bag bottom surface, it is favorable to improve flow guide and drying effect;The splicing mode between inner bag main body and inner bag bottom and pedestal is simple and easy to operate, without the aid of welding equipment and riveting equipment, when inner bag size changes, without additional investment equipment fund, only need to change the height of inner bag main body side part accordingly, adaptability improves, reduces investment and development cycle.
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Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, specifically to a cleaning machine for cleaning tableware, fruits and vegetables. Background Technology

[0002] The inner tub of a dishwasher can be made of either metal or plastic.

[0003] For example, Chinese patent application CN202022663911.6, entitled "A Standalone and Embedded Compatible Dishwasher Frame and Dishwasher with the Same Installed Thereon," uses a plastic base to form the bottom of the inner tub. Since the bottom of the inner tub, which forms the bottom wall of the washing chamber, needs to be shaped into a flow-guiding structure or other functional form, using plastic parts is relatively convenient for manufacturing. However, due to the influence of the water tension on the plastic parts themselves, the flow-guiding and drying effects of the bottom wall of the washing chamber formed by plastic parts are poor. Chinese patent application CN202220394110.0, entitled "A Dishwasher Inner Tub Assembly," uses a metal material to make the inner tub. To facilitate production and assembly, the upper and lower parts of the inner tub are fixed and sealed with a seam, which is a common production method for this type of metal inner tub. Although this improves the flow-guiding and drying effects at the bottom of the washing chamber, the all-metal inner tub structure has poor strength, and the seam-guiding process requires complex equipment. When the inner tub size changes, the connection between the bottom and middle of the inner tub requires changes in equipment and tooling, resulting in high production investment and costs.

[0004] Therefore, the current structure used in cleaning machines needs further improvement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a cleaning machine with improved adaptability, good sealing performance and easy production and installation, in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A cleaning machine includes an inner tank and a base. The inner tank includes an inner tank body and an inner tank bottom. The inner tank bottom covers the upper surface of the base. The upper edge of the inner tank bottom extends outward to form a support edge. The side wall of the base is higher than the inner tank bottom and is formed with a support platform for the support edge to support it. The lower edge of the inner tank body abuts against the support edge and is integrally connected with the inner tank bottom.

[0008] The inner tank body and bottom can both be made of metal, while the base can be made of plastic. The complex structure of the return water area formed on the plastic base facilitates production. The metal inner tank bottom covers the outside of the return water area and forms the bottom surface of the inner tank, which helps to improve the flow and drying effect. The splicing method between the inner tank body, the inner tank bottom and the base is simple and easy to operate, without the need for welding and riveting equipment. When the inner tank size changes, no additional equipment investment is required. Only the height of the side of the inner tank body needs to be changed accordingly, which improves adaptability and reduces investment and development cycle.

[0009] Preferably, the base has a recessed water return area in its central part, and the bottom of the inner liner has an opening corresponding to the water return area in its central part. The bottom of the inner liner forms a guide surface that gradually decreases from the edge to the opening. This structure, utilizing the bottom of the metal inner liner to form a bottom guide, not only improves the water return effect and prevents water from sticking to the walls, but also enhances the drying effect.

[0010] Preferably, the upper surface of the base forms a mating surface that gradually decreases from the edge towards the return water area, and the lower surface of the bottom of the inner liner fits closely to this mating surface. This structure utilizes the mating surface of the base to support the bottom of the inner liner, improving overall reliability.

[0011] Preferably, the base has an upwardly extending side wall at the outer edge of the support platform, which encloses a mounting cavity between the side wall and the outer surface of the inner liner body. A pressure block is disposed within this mounting cavity and holds the support edge. This pressure block can be secured to the support platform of the base with screws. This structure improves the assembly reliability between the inner liner body, the bottom of the inner liner, and the base, and facilitates operation.

[0012] Preferably, the lower edge of the inner liner body is bent outward to form a U-shaped flange, the lower end of which abuts against the support edge and is arranged corresponding to the inner edge of the support edge. The lower surface of the pressure block has an upwardly extending slot near this side, and the vertical portion of the outer side of the U-shaped flange is clamped in the slot to form an S-shaped seal. This structure helps to improve the sealing performance of the gradual connection between the inner liner body and the inner liner base.

[0013] Preferably, the bottom of the inner liner has a notch at the front corner, where a corner block is provided to press the bottom wall of the inner liner onto the base. The top of the corner block is pressed under the inner liner body, the upper surface of the corner block matches the top edge of the inner liner base, and the inner sidewall of the corner block extends smoothly downwards with its end forming a pressing edge that can be arranged horizontally and pressed against the bottom of the inner liner. Since the structure of the front corner of the inner liner is relatively complex and difficult to form using metal parts, corner blocks are used for assembly here. This facilitates production, and the corner blocks are secured to the base support with screws, with the bottom of the corner blocks pressing against the bottom wall of the inner liner, which also improves the compactness and reliability of the assembly between the bottom wall of the inner liner and the base.

[0014] Preferably, the front end of the corner block is partially missing to form a buffer zone located behind the front sidewall at the bottom of the inner liner. The plastic corner block is easy to shape into various forms, and by using the corner block to form a buffer zone, the water flow can be buffered here, avoiding violent surging and causing a large amount of overflow.

[0015] Preferably, the corner blocks and the upper surface of the bottom of the inner tub have recessed guide rails that allow the dish rack assembly of the dishwasher to slide on. This structure, using the metal inner tub bottom and plastic corner blocks to form the guide rails, not only simplifies the original dishwasher structure but also facilitates manufacturing and provides good support strength.

[0016] Compared with the prior art, the advantages of this utility model are as follows: The inner liner of this utility model is divided into two parts. The main body and bottom of the inner liner can both be made of metal, while the base is made of plastic. The complex structure of the return water area formed on the plastic base is easy to produce. The metal bottom of the inner liner covers the outside of the return water area and forms the bottom surface of the inner liner, which helps to improve the flow and drying effect. The splicing method between the main body of the inner liner, the bottom of the inner liner, and the base is simple and easy to operate. It does not require welding or riveting equipment. When the size of the inner liner changes, no additional equipment investment is required. Only the height of the side of the main body of the inner liner needs to be changed accordingly. The adaptability is improved, and the investment and development cycle are reduced. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Exploded view;

[0019] Figure 3 for Figure 1 Another angle view;

[0020] Figure 4 for Figure 1 A sectional view;

[0021] Figure 5 for Figure 1 Another sectional view. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms 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 utility model 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 limitations on this utility model.

[0024] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this utility model, unless otherwise explicitly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0028] like Figures 1-5 As shown, the cleaning machine of this embodiment includes an inner tank and a base 3. The inner tank includes an inner tank body 1 and an inner tank bottom 2. The inner tank bottom 2 covers the upper surface of the base 3. The upper edge of the inner tank bottom 2 extends outward to form a support edge 21. The side wall of the base 3 is higher than the inner tank bottom 2 and is formed with a support platform 31 for the support edge 21 to support it. The lower edge of the inner tank body 1 abuts against the support edge 21 and is spliced ​​with the inner tank bottom 2 as a whole.

[0029] The inner liner body 1 and the inner liner bottom 2 can both be made of metal, while the base 3 is made of plastic. The complex structure of the return water area 32 formed on the plastic base 3 is easy to produce. The metal inner liner bottom 2 covers the outside of the return water area 32 and forms the bottom surface of the inner liner, which helps to improve the flow and drying effect. The splicing method between the inner liner body 1, the inner liner bottom 2 and the base 3 is simple and easy to operate. It does not require welding equipment or riveting equipment. When the inner liner size changes, no additional equipment investment is required. Only the height of the side of the inner liner body 1 needs to be changed accordingly. The adaptability is improved and the investment and development cycle are reduced.

[0030] The base 3 has a recessed water return area 32 in its central part, and the bottom part of the inner liner 2 has an opening 22 corresponding to the water return area 32 in its central part. The bottom part of the inner liner 2 forms a guide surface 23 that gradually decreases from the edge to the opening 22. With this structure, the bottom of the metal inner liner 2 forms a bottom guide, which not only helps to improve the water return effect and prevent water from sticking to the wall, but also helps to improve the drying effect.

[0031] The upper surface of the base 3 forms a mating surface 33 that gradually decreases from the edge towards the return water area 32, and the lower surface of the inner liner bottom 2 fits closely with this mating surface 33. This structure utilizes the mating surface 33 of the base 3 to support the inner liner bottom 2, improving overall reliability.

[0032] A side baffle 34 extending upwards is provided on the side of the base 3 at the outer edge of the support 31. The side baffle 34 and the outer surface of the inner liner body 1 enclose a mounting cavity 35, in which a pressure block 4 is provided to hold the support edge 21. The pressure block 4 can be secured to the support 31 of the base 3 by screws. This structure improves the assembly reliability between the inner liner body 1, the inner liner bottom 2 and the base 3, and facilitates operation.

[0033] The lower edge of the inner liner body 1 is bent outward to form a U-shaped fold 11. The lower end of the U-shaped fold 11 abuts against the support edge 21 and is arranged corresponding to the inner edge of the support edge 21. A slot 41 extending upward is provided on the lower surface of the pressure block 4 near this side. The vertical portion of the outer side of the U-shaped fold 11 is clamped in the slot 41 to form an S-shaped seal. This structure helps to improve the sealing performance of the gradual connection between the inner liner body 1 and the inner liner base 3.

[0034] A notch 24 is formed at the front corner of the bottom liner 2, and a corner block 5 is provided at the notch 24 to press the bottom wall of the bottom liner 2 onto the base 3. The top of the corner block 5 is pressed under the inner liner body 1, and the upper surface of the corner block 5 matches the top edge of the inner liner base 3. The inner sidewall of the corner block 5 extends smoothly downward and the end forms a pressing edge 51 that can be arranged horizontally and pressed onto the bottom liner 2. Since the structure of the front corner of the inner liner is relatively complex and difficult to form using metal parts, corner blocks 5 are used for assembly here. On the one hand, this facilitates production, and on the other hand, the corner block 5 is constrained to the support platform 31 of the base 3 by screws, and the bottom of the corner block 5 is pressed onto the bottom wall of the bottom liner 2, which can also improve the assembly compactness and reliability between the bottom wall of the inner liner and the base 3.

[0035] The corner block 5 has a partial missing section at its front end, forming a buffer zone 52 located behind the front side wall of the bottom 2 of the inner liner. The plastic corner block 5 is easy to mold into various shapes. By using the corner block 5 to form the buffer zone 52, the water flow can be buffered here, avoiding violent surging and causing a large amount of overflow.

[0036] The corner block 5 and the upper surface of the inner tub bottom 2 have recessed guide rails 100 on which the dish rack assembly of the dishwasher can be slidably mounted. With this structure, the guide rails 100 are formed by the metal inner tub bottom 2 and the plastic corner block 5, which not only simplifies the original dishwasher structure, but also facilitates manufacturing and provides good support strength.

[0037] In this embodiment, the inner liner is divided into two parts. The inner liner body 1 and the inner liner bottom 2 can both be made of metal, while the base 3 is made of plastic. The complex structure of the return water area 32 formed on the plastic base 3 is easy to produce. The metal inner liner bottom 2 covers the outside of the return water area 32 and forms the bottom surface of the inner liner, which helps to improve the flow and drying effect. The splicing method between the inner liner body 1, the inner liner bottom 2 and the base 3 is simple and easy to operate. It does not require welding equipment or riveting equipment. When the size of the inner liner changes, no additional equipment investment is required. Only the height of the side of the inner liner body 1 needs to be changed accordingly. The adaptability is improved, and the investment and development cycle are reduced.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A cleaning machine, comprising an inner tank and a base (3), characterized in that: The inner liner includes an inner liner body (1) and an inner liner bottom (2). The inner liner bottom (2) covers the upper surface of the base (3). The upper edge of the inner liner bottom (2) extends outward to form a support edge (21). The side wall of the base (3) is higher than the inner liner bottom (2) and is formed with a support platform (31) for the support edge (21) to support it. The lower edge of the inner liner body (1) abuts against the support edge (21) and is spliced ​​with the inner liner bottom (2) as a whole.

2. The cleaning machine according to claim 1, characterized in that: The base (3) has a recessed water return area (32) in the center, and the bottom of the inner liner (2) has an opening (22) corresponding to the water return area (32) in the center. The bottom of the inner liner (2) forms a guide surface (23) that gradually decreases from the edge to the opening (22).

3. The cleaning machine according to claim 2, characterized in that: The upper surface of the base (3) forms a mating surface (33) that gradually decreases from the edge to the return water area (32), and the lower surface of the bottom of the inner liner (2) fits closely with the mating surface (33).

4. The cleaning machine according to claim 1, characterized in that: The base (3) has an upwardly extending side wall (34) at the outer edge of the support (31). The side wall (34) and the outer surface of the inner liner body (1) enclose an installation cavity (35). A pressure block (4) is provided in the installation cavity (35) and pressed against the support edge (21).

5. The cleaning machine according to claim 4, characterized in that: The lower edge of the inner liner body (1) is bent outward to form a U-shaped fold (11), the lower end of which abuts against the support edge (21) and is arranged corresponding to the inner edge of the support edge (21).

6. The cleaning machine according to claim 5, characterized in that: The lower surface of the pressure block (4) has an upwardly extending slot (41) near this side, and the vertical portion of the outer side of the U-shaped fold (11) is clamped in the slot (41) to form an S-shaped seal.

7. The cleaning machine according to any one of claims 1 to 6, characterized in that: The bottom of the inner liner (2) has a notch (24) at the front corner, and a corner block (5) is provided at the notch (24) to press the bottom wall of the bottom of the inner liner (2) onto the base (3).

8. The cleaning machine according to claim 7, characterized in that: The top of the corner block (5) is pressed under the inner liner body (1), the upper surface of the corner block (5) matches the top edge of the inner liner base (3), the inner sidewall of the corner block (5) extends smoothly downward and the end forms a pressing edge (51) that can be arranged horizontally and pressed against the bottom (2) of the inner liner.

9. The cleaning machine according to claim 7, characterized in that: The corner block (5) is partially missing at the front end to form a buffer zone (52) located behind the front sidewall of the bottom (2) of the inner liner.

10. The cleaning machine according to claim 7, characterized in that: The corner block (5) and the upper surface of the bottom of the inner liner (2) have recessed guide rails (100) on which the dish rack assembly of the washing machine can be slidably mounted.

Citation Information

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