A cleaning machine

By incorporating overflow components and S-shaped overflow channels on the side wall of the dishwasher's inner tub, the sealing problem between the door assembly and the inner tub assembly is solved, enabling the rapid discharge of excess water, preventing overflow and leakage, and improving the sealing and waterproof performance of the dishwasher.

CN224474396UActive Publication Date: 2026-07-10NINGBO FOTILE KITCHEN WARE CO LTD

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 difficulty sealing the lower left and right corners of the door and inner tub components, leading to water leakage and overflow problems. This is especially true when using a dual-pump system, where the water flow impact is weak and the sealing gaskets cannot completely seal, resulting in water accumulation and overflow issues.

Method used

An overflow device is installed on the side wall of the inner tank near the water accumulation area. The overflow device has an S-shaped overflow channel to form a siphon channel. When the water level exceeds the maximum water level, the overflow channel quickly discharges the water to prevent water from overflowing from the water accumulation area.

Benefits of technology

The overflow channel uses siphon action to quickly discharge excess water, avoiding corner overflow problems, reducing leakage failure rate, and improving the sealing and waterproof performance of the cleaning machine.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224474396U_ABST
Patent Text Reader

Abstract

The utility model relates to a kind of cleaning machines, including inner bag, the front edge and side edge of inner bag bottom extend to the front side vertically and enclose the water-logged area being connected with inner bag inner cavity, the side wall of the inner bag is equipped with the drainage port being arranged close to water-logged area, the overflow element is arranged at this drainage port, overflow channel that can guide water from bottom to top to the place of drainage port is arranged in the overflow element, the overflow channel is S-shaped structure of horizontal, under the condition that water level reaches the lower edge of drainage port, the S-shaped structure forms siphon channel.Overflow element can guide the water flow of violent surge to the place of drainage port and then discharge through overflow channel, so as to avoid a large amount of water surge into water-logged area, when excessive water inflow or washing water volume exceeds the highest water level, overflow level in overflow channel reaches the lower edge of drainage port rapidly, at this time, overflow channel forms siphon channel, can greatly speed up overflow discharge speed, avoid corner overflow problem.
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Description

Technical Field

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

[0002] Currently, front-loading dishwashers on the market often struggle to achieve a complete seal at the lower left and right corners of the door and inner drum components, with some even lacking any seal at all. In contrast, dishwashers using closed-loop water pumps, where a single pump supplies at least two layers of spray, have a weaker water flow impact, generally preventing leaks at the lower left and right corners of the door and inner drum components.

[0003] The applicant's prior patent ZL202023348766.9, "A Dual-Pump System and a Cleaning Machine Using the Dual-Pump System," discloses a structure in which the dual-pump system includes an upper impeller, a lower impeller, an upper housing, a lower housing, and a drive component. The upper housing has a first accommodating cavity for mounting the upper part of the first impeller, and the upper part of the lower housing has a second accommodating cavity for mounting the lower part of the first impeller. A first water inlet is opened on the side wall of the lower housing to supply water into the second accommodating cavity. The lower part of the lower housing has a third accommodating cavity for mounting the lower impeller. A second water inlet and a water outlet are opened on the side wall and / or bottom wall of the lower housing. The cleaning machine includes a housing and a water supply pipe that can transport water from the bottom of the housing upwards. The lower housing is constrained to the bottom wall of the housing, and the water outlet is connected to the lower end of the water supply pipe. The cleaning machine using the above-mentioned open dual-pump system utilizes two independent volutes to supply water to the upper and lower spray arms, significantly improving water flow and pressure. However, if a sealing structure is not installed at the lower left and right corners of the door assembly and inner tank assembly, water leakage is likely to occur.

[0004] However, if only a sealing gasket is added to block the water flow, the gasket is prone to deformation when the door is opened and closed due to the small and irregular space, making it difficult to seal completely. This causes some water to accumulate and enter the assembly space at the bottom of the door assembly and the inner tank assembly. Furthermore, due to the blocking effect of the sealing gasket, the water that enters the assembly space is difficult to flow back into the inner tank, resulting in more and more water accumulation until it causes a serious overflow problem. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a cleaning machine that can generate a siphon effect after the overflow height reaches a set value, thereby draining the water in time and avoiding the problem of overflow at the corners.

[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. The front edge and side edge of the bottom of the inner tank extend vertically forward to enclose a water accumulation area that communicates with the inner cavity of the inner tank. The side wall of the inner tank has a drain outlet arranged near the water accumulation area. An overflow component is provided at the drain outlet. The overflow component has an overflow channel that guides water from bottom to top to the drain outlet. The overflow channel has a horizontal S-shaped structure. When the water level reaches the lower edge of the drain outlet, the S-shaped structure forms a siphon channel.

[0008] With the above structure, the overflow component can guide the violently surging water flow to the drain outlet and then discharge it through the overflow channel, so as to avoid a large amount of water flowing into the water accumulation area. When the water intake is too large or the washing water volume exceeds the maximum water level, the overflow water level in the overflow channel quickly reaches the lower edge of the drain outlet. At this time, the overflow channel forms a siphon channel, which can greatly accelerate the overflow discharge speed and avoid corner overflow problems.

[0009] Preferably, the inner liner sidewall is recessed outward to form an installation area, and the drain outlet is located in this installation area. A raised edge is provided at the edge of the drain outlet, and this raised edge, together with the inner wall of the installation area, forms an installation groove. The upper edge of the overflow component is embedded in this installation groove. This structure facilitates the installation and assembly of the overflow component.

[0010] Preferably, the inner wall of the overflow component is provided with a first locking foot and a second locking foot extending outward. The first locking foot passes through the drain outlet and is detachably connected to the upper edge of the drain outlet, and the second locking foot passes through the drain outlet and is detachably connected to the lower edge of the drain outlet. This structure facilitates the disassembly and assembly of the overflow component and makes cleaning convenient.

[0011] Preferably, the inner side of the lower part of the overflow component is partially missing, allowing it to extend across the lower edge of the mounting area and lie below the mounting area. The bottom of the overflow component has an inlet connected to the overflow channel, which is always located below the washing water level. This structure can quickly accept surging water flow and buffer it with the help of the overflow channel structure.

[0012] Preferably, the overflow component is provided with a U-shaped rib, the lateral portion of which is arranged close to the lower edge of the overflow component. The overflow component is provided with a first L-shaped structure extending inward from its first sidewall and a second L-shaped structure extending inward from its second sidewall. The lateral portion of the first L-shaped structure extends laterally within the first sidewall, and the vertical portion of the first L-shaped structure bends downward and enters the opening of the U-shaped structure, close to the first vertical portion of the U-shaped structure. The lateral portion of the second L-shaped structure extends laterally within the second sidewall, and the vertical portion of the second L-shaped structure bends downward and enters the opening of the U-shaped structure, close to the second vertical portion of the U-shaped structure. The U-shaped structure, the first L-shaped structure, and the second L-shaped structure together enclose two overflow channels arranged side by side. The above scheme not only facilitates the formation of an S-shaped overflow channel structure, but also makes the overall structure complex and labyrinthine, which can reduce the size of the surge after the water enters the overflow channel. Furthermore, by placing the inlet of the channel at the bottom, extending below the water surface, it can effectively prevent the surge water from flowing out of the overflow channel to the bottom plate, thereby reducing the leakage failure rate.

[0013] Preferably, the first sidewall of the overflow component, together with the outer wall of the first vertical portion of the U-shaped structure, the inner wall of the first vertical portion of the U-shaped structure, and the vertical portion of the first L-shaped structure, and the vertical portion of the first L-shaped structure, together enclose a first overflow channel. The second sidewall of the overflow component, together with the outer wall of the second vertical portion of the U-shaped structure, the inner wall of the second vertical portion of the U-shaped structure, and the vertical portion of the second L-shaped structure, and the vertical portion of the second L-shaped structure, together enclose a second overflow channel.

[0014] Preferably, the first L-shaped structure has an upwardly extending first rib on its transverse portion, and the second L-shaped structure has an upwardly extending second rib on its transverse portion. The first and second ribs together enclose a transition section of the siphon channel. The upper ends of the first and second ribs are flush with the lower edge of the drain outlet. This structure elevates the upper end of the overflow channel, further improving the buffering effect against water flow.

[0015] Preferably, the outer side of the inner liner is provided with an overflow channel connected to the drain outlet. This structure facilitates the guidance of water to a specific overflow area for use in conjunction with a water level sensor to detect leaks.

[0016] Compared with the prior art, the advantages of this utility model are as follows: This utility model is provided with an overflow component on the rear side near the water accumulation area. The overflow component can guide the violently surging water flow to the drain outlet and then discharge it through the overflow channel, so as to avoid a large amount of water flowing into the water accumulation area. When the water intake is too large or the washing water volume exceeds the maximum water level, the overflow water level in the overflow channel quickly reaches the lower edge of the drain outlet. At this time, the overflow channel forms a siphon channel, which can greatly accelerate the overflow discharge speed and avoid the problem of corner overflow. 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 Enlarged view of section A;

[0019] Figure 3 for Figure 1 Exploded view;

[0020] Figure 4 for Figure 3 Enlarged view of section B;

[0021] Figure 5 This is a schematic diagram of the back structure of the overflow component in an embodiment of this utility model;

[0022] Figure 6 This is a schematic diagram of the surface structure of the overflow component in an embodiment of this utility model. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] like Figures 1-6 As shown, the cleaning machine of this embodiment includes an inner tank 1. The front edge and side edge of the bottom of the inner tank 1 extend vertically forward to enclose a water accumulation area 11 that is connected to the inner cavity of the inner tank 1. The side wall of the inner tank 1 is provided with a drain outlet 12 arranged near the water accumulation area 11. An overflow component 2 is provided at the drain outlet 12. The overflow component 2 is provided with an overflow channel 21 that can guide water from bottom to top to the drain outlet 12. The overflow channel 21 has a horizontal S-shaped structure. When the water level reaches the lower edge of the drain outlet 12, the S-shaped structure forms a siphon channel.

[0025] With the above structure, the overflow component 2 can guide the violently surging water flow to the drain outlet 12 and discharge it through the overflow channel 21, thereby avoiding a large amount of water flowing into the water accumulation area 11. When the water intake is too large or the washing water volume exceeds the maximum water level, the overflow water level in the overflow channel 21 quickly reaches the lower edge of the drain outlet 12. At this time, the overflow channel 21 forms a siphon channel, which can greatly accelerate the overflow discharge speed and avoid corner overflow problems.

[0026] The inner liner 1 has an outwardly recessed sidewall forming an installation area 13. A drain outlet 12 is located in this installation area 13, and a raised edge 14 is provided on the edge of the drain outlet 12. The raised edge 14 and the inner wall of the installation area 13 together enclose an installation groove 15, in which the upper edge of the overflow component 2 is embedded. This structure facilitates the installation and assembly of the overflow component 2.

[0027] The inner wall of the overflow component 2 is provided with an outwardly extending first locking foot 22 and a second locking foot 23. The first locking foot 22 passes through the drain outlet 12 and is detachably connected to the upper edge of the drain outlet 12, and the second locking foot 23 passes through the drain outlet 12 and is detachably connected to the lower edge of the drain outlet 12. This structure facilitates the disassembly and assembly of the overflow component 2 and makes cleaning convenient.

[0028] The inner side of the lower part of the overflow component 2 is partially missing, allowing it to cross the lower edge of the mounting area 13 and be located below the mounting area 13. The bottom of the overflow component 2 has a water inlet 211 that communicates with the overflow channel 21, and the water inlet 211 is always located below the washing water level. This structure can quickly accept the surging water flow and buffer it with the help of the overflow channel 21 structure.

[0029] The overflow component 2 is provided with a U-shaped rib 24. The horizontal part of the rib 24 is arranged close to the lower edge of the overflow component 2. The overflow component is provided with a first L-shaped structure 25 extending inward from its first sidewall and a second L-shaped structure 26 extending inward from its second sidewall. The horizontal part of the first L-shaped structure 25 extends horizontally within the first sidewall. The vertical part of the first L-shaped structure 25 bends downward and enters the opening of the U-shaped structure, close to the first vertical part of the U-shaped structure. The horizontal part of the second L-shaped structure 26 extends horizontally within the second sidewall. The vertical part of the second L-shaped structure 26 bends downward and enters the opening of the U-shaped structure, close to the second vertical part of the U-shaped structure. The U-shaped structure, the first L-shaped structure 25, and the second L-shaped structure 26 together enclose two overflow channels 21 arranged side by side. The above scheme not only facilitates the formation of an S-shaped overflow channel 21 structure, but also makes the overall structure complex and maze-like, which can reduce the size of the surge after the accumulated water enters the overflow channel 21. Furthermore, by setting the inlet 211 of the channel at the bottom, extending below the water surface, it can effectively prevent the surge water from flowing out of the overflow channel 21 to the bottom plate, thereby reducing the leakage failure rate.

[0030] The first sidewall of the overflow component 2, together with the outer wall of the first vertical portion of the U-shaped structure, the inner wall of the first vertical portion of the U-shaped structure, and the vertical portion of the first L-shaped structure 25, and the vertical portion of the first L-shaped structure 25, together with the vertical portion of the second L-shaped structure 26, together form a first overflow channel 21. The second sidewall of the overflow component 2, together with the outer wall of the second vertical portion of the U-shaped structure, the inner wall of the second vertical portion of the U-shaped structure, and the vertical portion of the second L-shaped structure 26, and the vertical portion of the second L-shaped structure 26, together with the vertical portion of the first L-shaped structure 25, together form a second overflow channel 21.

[0031] The first L-shaped structure 25 has an upwardly extending first extension rib 251 on its transverse portion, and the second L-shaped structure 26 has an upwardly extending second extension rib 261 on its transverse portion. The first extension rib 251 and the second extension rib together enclose a transition section of the siphon channel, the upper end of which is the outlet 212 of the overflow channel 21. The upper ends of the first extension rib 251 and the second extension rib 261 are flush with the lower edge of the drain outlet 12. This structure elevates the upper end of the overflow channel 21, further improving the buffering effect against water flow.

[0032] An overflow channel 100 is provided on the outer side of the inner liner 1, which is connected to the drain outlet 12. This structure facilitates the guidance of water to a specific overflow area for use in conjunction with a water level sensor to detect leaks.

[0033] In this embodiment, an overflow component 2 is provided on the rear side near the water accumulation area 11. The overflow component 2 can guide the violently surging water flow to the drain outlet 12 and then discharge it through the overflow channel 21 to avoid a large amount of water flowing into the water accumulation area 11. When the water intake is too large or the washing water volume exceeds the maximum water level, the overflow water level in the overflow channel 21 quickly reaches the lower edge of the drain outlet 12. At this time, the overflow channel 21 forms a siphon channel, which can greatly accelerate the overflow discharge speed and avoid the problem of corner overflow.

[0034] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine, comprising an inner tank (1), wherein the front edge and side edges of the bottom of the inner tank (1) extend vertically forward to enclose a water accumulation area (11) communicating with the inner cavity of the inner tank (1), characterized in that: The inner liner (1) has a drain outlet (12) arranged near the water accumulation area (11) on its side wall. An overflow component (2) is provided at the drain outlet (12). The overflow component (2) has an overflow channel (21) that can guide water from bottom to top to the drain outlet (12). The overflow channel (21) has a horizontal S-shaped structure. When the water level reaches the lower edge of the drain outlet (12), the S-shaped structure forms a siphon channel.

2. The cleaning machine according to claim 1, characterized in that: The inner liner (1) has a recessed sidewall to form an installation area (13). The drain outlet (12) is located in the installation area (13). The drain outlet (12) has a raised edge (14) at its edge. The raised edge (14) and the inner wall of the installation area (13) together enclose an installation groove (15). The upper edge of the overflow component (2) is embedded in the installation groove (15).

3. The cleaning machine according to claim 2, characterized in that: The inner wall of the overflow component (2) is provided with an outwardly extending first locking foot (22) and second locking foot (23). The first locking foot (22) passes through the drain outlet (12) and is detachably connected to the upper edge of the drain outlet (12). The second locking foot (23) passes through the drain outlet (12) and is detachably connected to the lower edge of the drain outlet (12).

4. The cleaning machine according to claim 2, characterized in that: The overflow component (2) has a partial missing section on the inner side of its lower part so that it can cross the lower edge of the installation area (13) and be located below the installation area (13). The bottom of the overflow component (2) has an inlet (211) that communicates with the overflow channel (21), and the inlet (211) is always located below the washing water level.

5. The cleaning machine according to claim 4, characterized in that: The overflow component (2) is provided with a U-shaped rib (24). The horizontal part of the rib (24) is arranged close to the lower edge of the overflow component (2). The overflow component (2) is provided with a first L-shaped structure (25) extending inward from its first sidewall and a second L-shaped structure (26) extending inward from its second sidewall. The horizontal part of the first L-shaped structure (25) extends horizontally within the first sidewall. The vertical part of the first L-shaped structure (25) bends downward and enters the opening of the U-shaped structure, close to the first vertical part of the U-shaped structure. The horizontal part of the second L-shaped structure (26) extends horizontally within the second sidewall. The vertical part of the second L-shaped structure (26) bends downward and enters the opening of the U-shaped structure, close to the second vertical part of the U-shaped structure. The U-shaped structure, the first L-shaped structure (25), and the second L-shaped structure (26) together enclose two overflow channels (21) arranged side by side.

6. The cleaning machine according to claim 5, characterized in that: The first sidewall of the overflow component (2) together with the outer wall of the first vertical part of the U-shaped structure, the inner wall of the first vertical part of the U-shaped structure and the vertical part of the first L-shaped structure (25), and the vertical part of the first L-shaped structure (25) and the vertical part of the second L-shaped structure (26) together form the first overflow channel (21).

7. The cleaning machine according to claim 6, characterized in that: The second sidewall of the overflow component (2) together with the outer wall of the second vertical part of the U-shaped structure, the inner wall of the second vertical part of the U-shaped structure and the vertical part of the second L-shaped structure (26), and the vertical part of the second L-shaped structure (26) and the vertical part of the first L-shaped structure (25) enclose the second overflow channel (21).

8. The cleaning machine according to claim 5, characterized in that: The first L-shaped structure (25) has an upwardly extending first extension rib (251) on its transverse portion, and the second L-shaped structure (26) has an upwardly extending second extension rib (261) on its transverse portion. The first extension rib (251) and the second extension rib (261) together enclose the transition section of the siphon channel.

9. The cleaning machine according to claim 8, characterized in that: The upper ends of the first extension rib (251) and the second extension rib (261) are flush with the lower edge of the drain outlet (12).

10. The cleaning machine according to any one of claims 1 to 9, characterized in that: An overflow channel (100) connected to the drain outlet (12) is provided on the outside of the inner liner (1).