A dishwasher

Abstract

This utility model relates to a dishwasher, including a tub with a washing chamber inside; a water tank located below the tub, the water tank and the tub being connected by a return pipe that allows water to flow from the water tank towards the tub; a waste basket located at the bottom of the tub, the top of the waste basket being open as a water inlet located in the washing chamber, and the waste basket extending into the water tank, the waste basket having drainage holes on its side and bottom walls; a cover plate movably mounted on the top of the waste basket, the cover plate being driven and connected to a drive mechanism to open or close the waste basket's water inlet; the dishwasher also includes a water inlet pipe for supplying water to the tub, the water inlet pipe being connected to the return pipe. When it is not necessary to filter the residue in the washing water, and only the washing water is needed to rinse the dishes, the cover plate can be used to close the waste basket's water inlet, so that the washing water will not flow through the waste basket or come into contact with the residue in the waste basket, avoiding contamination of the washing water by the residue.

Description

Technical Field

[0001] This utility model relates to a dishwasher. Background Technology

[0002] A dishwasher is a device that sprays cold or hot water onto dishes to remove dirt and grime. A typical dishwasher mainly includes a body with a cleaning chamber, a control panel, a water pump for spraying washing water, rotating spray arms, a waste basket assembly, a drainage system, and a heater for generating hot water. Existing dishwashers circulate and filter the washing water by covering the tank with a filter plate. The filter plate has through-holes for installing the waste basket assembly, where residue washed off the items is collected.

[0003] For example, the Chinese utility model patent disclosed in patent application number CN202420079895.1 (publication number CN222487308U) entitled "A Cleaning Machine" includes a housing, a filter plate and a slag collection basket. The filter plate includes a first part and a second part that can be spliced ​​together. The second part has an installation opening for the top of the slag collection basket to be exposed. The bottom of the slag collection basket is detachably constrained to the bottom of the return water area. The top of the slag collection basket forms a downward constraint force on the second part at the slag collection opening. At least a part of the second part is slightly deformed under the action of the constraint force, forming a tendency to sink from the edge to the slag collection opening.

[0004] A typical cleaning process includes washing and rinsing. Taking the washing stage as an example, the washing water is filtered through a filter plate before entering the water pump, and this cycle repeats. Because the slag collection basket is open relative to the entire washing chamber, the slag in the basket is flushed after each filtration. This design accelerates the decomposition of the slag (from large particles to small particles). The decomposed small particles can easily flow through the filter plate into the water pump and adhere to the inside of the blades or spray arms, causing blockages and hindering maintenance. In addition, each water flow needs to circulate through the slag in the basket assembly, so the cleanliness of the washing water cannot be guaranteed in a single washing stage. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a dishwasher that can prevent residue in the slag basket from contaminating the washing water, 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: a dishwasher, comprising...

[0007] The tank has a washing chamber inside;

[0008] A water tank is located below the tank body, and the water tank and the tank body are connected by a return pipe that allows water to flow from the water tank toward the tank body.

[0009] A slag basket is located at the bottom of the tank. The top of the slag basket is open as a water inlet. The water inlet is located in the washing chamber and the slag basket extends into the water tank. The side walls and bottom walls of the slag basket are provided with drainage holes.

[0010] The feature is that a cover plate is movably provided on the top of the slag basket, the cover plate is driven and connected to the drive mechanism, thereby opening or closing the water inlet of the slag basket, and a sealing element is provided between the cover plate and the top of the slag basket;

[0011] The dishwasher also includes a water inlet pipe for supplying water into the tank, and the water inlet pipe is connected to a return pipe.

[0012] To improve the relative stability between the cover plate and the slag basket, a first magnet is provided on the cover plate, and a second magnet is provided on the slag basket. The first and second magnets are magnetically attracted to each other. The cooperation of the first and second magnets can improve the relative stability between the cover plate and the slag basket without affecting their relative displacement.

[0013] To prevent residue from clogging the drain holes, the slag basket is equipped with a vertically extending rotating shaft, on which a flexible brush plate is mounted. The flexible brush plate abuts against the inner wall surface of the slag basket. The flexible brush plate can scrape off the residue on the inner wall surface of the slag basket to prevent clogging of the drain holes.

[0014] Preferably, the slag basket is covered with a filter cylinder that allows water to flow through, and activated carbon is disposed between the filter cylinder and the slag basket. The activated carbon is used to deeply adsorb oil stains contained in the washing water. If grease passes through the drain holes, it will be adsorbed by the activated carbon, preventing it from continuing to flow with the water into the washing chamber of the tank and affecting the cleaning effect of the tableware.

[0015] The shaft can be driven to rotate by a drive mechanism such as a motor, but this involves many components. Therefore, preferably, an impeller is fixedly mounted on the top of the shaft. The impeller is coaxial with the shaft and located on the flow path of the water flowing to the slag basket, thus being driven to rotate by the water flow. The impeller can rotate under the action of the water flow, thereby driving the shaft to rotate. This design is simple and saves energy.

[0016] In the above scheme, the tank is provided with a drain pipe connected to it, and the drain pipe is provided with a drain valve that can control the opening and closing of its water passage.

[0017] In the above scheme, the trough is equipped with a bowl rack and a spray pipe surrounding the bowl rack. The spray pipe is equipped with water spray holes that spray water toward the bowl rack, and the spray pipe is connected to the water inlet pipe.

[0018] Compared with the prior art, the advantages of this utility model are as follows: By setting a cover plate at the water inlet of the slag basket, when it is necessary to filter the residue in the washing water, the cover plate opens the water inlet of the slag basket, and the washing water can pass through the slag basket. The residue in the water is filtered by the slag basket, and the filtered water flows back to the washing chamber through the return pipe and the water inlet pipe to wash the tableware. When it is not necessary to filter the residue in the washing water, and only the washing water is needed to rinse the tableware, the cover plate can be closed to close the water inlet of the slag basket. In this way, the washing water will not flow through the slag basket, nor will it come into contact with the residue in the slag basket, thus avoiding contamination of the washing water by the residue. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of a slag basket;

[0021] Figure 3 for Figure 1 A partial structural diagram. Detailed Implementation

[0022] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the 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] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.

[0025] like Figures 1-3As shown, the dishwasher of this preferred embodiment includes a tank 1, a water tank 2, and a waste basket 3. The dishwasher also includes a water inlet pipe 42 for supplying water to the tank 1, the water inlet pipe 42 being connected to a water delivery pipe 43, and the water delivery pipe 43 being connected to an external water source.

[0026] The tank 1 has a washing chamber 11 inside. The water tank 2 is located below the tank 1. The water tank 2 and the tank 1 are connected by a return pipe 41 that allows water to flow from the water tank 2 toward the tank 1. The inlet pipe 42 is connected to the return pipe 41. A one-way valve is installed on the return pipe 41 to allow water to flow unidirectionally from the return pipe 41 to the inlet pipe 42. The one-way valve can adopt an existing structure. A water pump 45 can also be installed on the return pipe 41.

[0027] A three-way connector 40 can be installed on the water inlet pipe 42. The first port of the three-way connector 40 is connected to the water supply pipe 43, the second port is connected to the return pipe 41, and the third port is connected to the spray pipe 44 (described below). The tank 1 is equipped with a bowl rack 5 and a spray pipe 44 surrounding the bowl rack 5. The spray pipe 44 is equipped with water spray holes that spray towards the bowl rack 5.

[0028] The slag basket 3 is located at the bottom of the tank 1. The top of the slag basket 3 is open as a water inlet 31. The water inlet 31 is located in the washing chamber 11. Preferably, the water inlet 31 is flush with the bottom wall of the tank 1 to prevent slag accumulation. The slag basket 3 extends into the water tank 2. The side wall and bottom wall of the slag basket 3 are provided with drainage holes 311.

[0029] like Figure 1 , 2 As shown, the outside of the slag basket 3 is covered with a filter cylinder 32 through which water can flow. The filter cylinder 32 can be made of polypropylene and can be used to filter the water used to wash tableware, forming clean water for reuse. The polypropylene has a pore size of 1μm-10μm and a thickness of 10mm-20mm.

[0030] Activated carbon 33 is installed between the filter cartridge 32 and the slag basket 3. The activated carbon 33 is used to deeply adsorb oil stains contained in the washing water. If grease passes through the drain hole 311, it will be adsorbed by the activated carbon 33, preventing it from continuing to flow with the water into the washing chamber 11 of the tank body 1 and affecting the cleaning effect of the tableware. The pore size of the activated carbon 33 is 1μm-10μm, and the thickness is 10mm-20mm.

[0031] The slag basket 3 has a vertically extending rotating shaft 34, on which a flexible brush plate 35 is installed. The flexible brush plate 35 abuts against the inner wall surface of the slag basket 3. The flexible brush plate 35 can scrape off the residue on the inner wall surface of the slag basket 3 to prevent clogging of the drain hole 311. The slag basket 3 can be made of stainless steel to prevent it from being scratched by the brush plate 35.

[0032] An impeller 36 is fixedly mounted on the top of the rotating shaft 34. The impeller 36 is coaxial with the rotating shaft 34 and is located on the flow path of water flowing to the slag basket 3, thus being driven to rotate by the water flow. The impeller 36 can rotate under the action of the water flow, thereby driving the rotating shaft 34 to rotate, so that the flexible brush plate 35 can scrape off the residue on the inner wall surface of the slag basket 3.

[0033] The top of the slag basket 3 is movably equipped with a cover plate 6, which is driven and connected to the drive mechanism 61, thereby opening or closing the water inlet 31 of the slag basket 3. When it is necessary to filter the residue in the washing water, the cover plate 6 opens the water inlet 31 of the slag basket 3, and the washing water can pass through the slag basket 3. The residue in the water is filtered by the slag basket 3, and the filtered water flows back to the washing chamber 11 through the return pipe 41 and the inlet pipe 42 to wash the tableware. When it is not necessary to filter the residue in the washing water, such as when the tableware has been basically cleaned and is entering the final washing stage, and only the washing water is needed to rinse the tableware, the cover plate 6 can close the water inlet 31 of the slag basket 3. In this way, the washing water will not flow through the slag basket 3 and will not come into contact with the residue in the slag basket 3, thus avoiding contamination of the washing water by the residue.

[0034] The cover plate 6 can move relative to the slag basket 3 in a translational manner. For example, the cover plate 6 is connected to a push rod motor, which can push the cover plate 6 to move translationally. After the cover plate 6 is pushed open, it can rest on the bottom wall of the tank 1. Of course, the cover plate 6 can also be rotatably connected to the slag basket 3, so that the cover plate 6 can rotate in the horizontal direction.

[0035] A seal 62 is provided between the top of the cover plate 6 and the top of the slag basket 3. The seal 62 may be made of silicone.

[0036] To improve the relative stability between the cover plate 6 and the slag basket 3, a first magnet is provided on the cover plate 6, and a second magnet is provided on the slag basket 3. The first and second magnets are magnetically attracted to each other. The cooperation of the first and second magnets can improve the relative stability between the cover plate 6 and the slag basket 3 without affecting their relative displacement.

[0037] The tank 1 is equipped with a drain pipe 12 connected to it, and the drain pipe 12 is equipped with a drain valve 13 that can control the flow of water. When the washing is finished, the drain valve 13 is opened to drain the water in the washing chamber 11; when the washing is in progress, the drain valve 13 is closed. The drain valve 13 can adopt an existing structure.

[0038] After the water in the washing chamber 11 of the tank 1 washes the dishes, it flows into the residue basket 3, where the residue is accumulated. The filtered water flows into the water tank 2, and then flows back into the washing chamber 11 through the return pipe 41 and the inlet pipe 42. The function of the water tank 2 is to store the washing water that has absorbed the oil and filtered, and to provide the dishwasher with washing water for a second time, thus saving water through circulation and realizing the multiple recycling of a fixed amount of water.

Claims

1. A dishwasher, comprising The tank (1) has a washing chamber (11) inside; A water tank (2) is located below the tank (1), and the water tank (2) and the tank (1) are connected by a return pipe (41) that allows water to flow from the water tank (2) toward the tank (1). A slag basket (3) is located at the bottom of the tank (1). The top of the slag basket (3) is open as a water inlet (31). The water inlet (31) is located in the washing chamber (11), and the slag basket (3) extends into the water tank (2). The side wall and bottom wall of the slag basket (3) are provided with drainage holes (311). Its features are, The top of the slag basket (3) is movably provided with a cover plate (6), which is connected to the drive mechanism (61) to open or close the water inlet (31) of the slag basket (3). The dishwasher also includes a water inlet pipe (42) for supplying water to the tank (1), and the water inlet pipe (42) is connected to the return pipe (41).

2. The dishwasher according to claim 1, characterized in that: The slag basket (3) is provided with a vertically extending rotating shaft (34), and a flexible brush plate (35) is installed on the rotating shaft (34). The flexible brush plate (35) abuts against the inner wall surface of the slag basket (3).

3. The dishwasher according to claim 2, characterized in that: An impeller (36) is fixedly provided on the top of the rotating shaft (34). The impeller (36) is coaxial with the rotating shaft (34) and is located on the flow path of water flowing to the slag basket (3), thereby being driven to rotate by the water flow.

4. The dishwasher according to any one of claims 1 to 3, characterized in that: The cover plate (6) is provided with a first magnet, and the slag basket (3) is provided with a second magnet. The first magnet and the second magnet are magnetically attracted to each other.

5. The dishwasher according to any one of claims 1 to 3, characterized in that: The slag basket (3) is covered with a filter cylinder (32) through which water can flow, and activated carbon (33) is provided between the filter cylinder (32) and the slag basket (3).

6. The dishwasher according to any one of claims 1 to 3, characterized in that: The tank (1) is provided with a drain pipe (12) connected to it, and the drain pipe (12) is provided with a drain valve (13) that can control the opening and closing of its water passage.

7. The dishwasher according to any one of claims 1 to 3, characterized in that: The trough (1) is provided with a bowl rack (5) and a spray pipe (44) surrounding the bowl rack (5). The spray pipe (44) is provided with water spray holes facing the bowl rack (5). The spray pipe (44) is connected to the water inlet pipe (42).

8. The dishwasher according to any one of claims 1 to 3, characterized in that: A seal (62) is provided between the top of the cover plate (6) and the top of the slag basket (3).

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