A dishwasher

Abstract

The present invention relates to the technical field of dishwashers, and discloses a dishwasher, comprising: a water tank for accommodating objects to be cleaned, a water return port being provided at the bottom of the water tank; a distributor being provided on the water tank, the distributor comprising a liquid outlet communicating with the inside of the water tank, and the distributor being used to store detergent; a water circuit assembly comprising a water inlet three-way valve, a water pump, and a water supply three-way valve, the water inlet three-way valve comprising a water source inlet, a first outlet, and a distribution port, the first outlet being communicated with the inside of the water tank, the distribution port being communicated with the distributor, the input end of the water pump being communicated with the inside of the water tank, the water supply three-way valve comprising a water inlet, a cleaning water supply port, and a drain port, the water inlet being communicated with the output end of the water pump; in a cleaning state, the water inlet is communicated with the cleaning water supply port; in a drain state, the water inlet is communicated with the drain port. The water pump of the dishwasher of the present invention supplies water to the cleaning water supply port or the drain port through the water supply three-way valve, thereby saving the number of water pumps and reducing costs.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a dishwasher. Background Art

[0002] A dishwasher is a device used to automatically clean bowls, chopsticks, plates, dishes, knives, forks and other tableware. Its working principle is to use motors and electronic control circuits to complete a series of cleaning processes using water and detergents.

[0003] At present, the safety regulations of dishwashers require that the water outlet of the dishwasher must be equipped with a "U"-shaped pipe. The two sides of the "U"-shaped pipe ensure that the waste water will not flow back into the water tank of the dishwasher through the drain port. When draining, a water pump is required to make the water in the water tank pass over the high position of the "U"-shaped pipe and be discharged from the drain port. In addition, when the dishwasher is working, it is necessary to configure another water pump for spraying water supply. It can be seen that the current water pump configuration is large in number and the cost is high. In addition, the feeding structure of the current dishwasher dispenser (used to store detergent) is that after the detergent is placed in the dispenser, the blocking door is opened to put the whole piece of detergent into the water tank for dissolution and circulation, and the detergent is easy to remain in the dispenser. Summary of the invention

[0004] The present invention aims to improve at least one technical problem in the background technology.

[0005] The present invention provides a dishwasher, comprising:

[0006] A water tank, used to contain objects to be cleaned, with a water return port provided at the bottom of the water tank;

[0007] a dispenser, arranged on the water tank, the dispenser comprising a liquid outlet communicated with the interior of the water tank, and the dispenser being used to store detergent;

[0008] A water circuit assembly comprises a water inlet three-way valve, a water pump and a water supply three-way valve, wherein the water inlet three-way valve is installed on the water tank, the water inlet three-way valve comprises a water source inlet, a first outlet and a distribution port, the water source inlet is connected to an external water source, the first outlet is connected to the interior of the water tank, the distribution port is connected to a distributor, the water supply three-way valve is arranged on the water tank, the input end of the water pump is connected to the interior of the water tank, the water supply three-way valve comprises a water inlet, a cleaning water supply port and a drain port, the water inlet is connected to the output end of the water pump; the water supply three-way valve comprises a drain state and a cleansing state, in the cleansing state, the water inlet is connected to the cleansing water supply port; in the drain state, the water inlet is connected to the drain port.

[0009] Beneficial effects of the present invention: the dishwasher of the present invention is provided with a water inlet three-way valve, and an external water source such as tap water can supply water to the inside of the water tank and the dispenser at the same time through the water inlet three-way valve, and the detergent is fully washed away by means of the external water source, thereby improving the utilization rate of the detergent; a water supply three-way valve is configured, and a water pump supplies water to the cleaning water supply port or the drain port through the water supply three-way valve, thereby saving the number of water pumps and reducing costs.

[0010] As some sub-schemes of the above technical scheme, the water circuit assembly also includes a pipeline plate, on which a water inlet channel is provided, and the water inlet channel includes a water source end and a water valve end, the water source end is connected to an external water source through a pipeline, the water valve end is connected to the water source inlet of the water inlet three-way valve through a pipeline, and a filter is provided on the water inlet channel.

[0011] As some sub-schemes of the above technical scheme, a notch is provided on the water inlet channel, the filter element includes a trough body and a barrier block, the barrier block is connected to the front side of the trough body, the rear side of the trough body is sealed and connected to the inner wall of the water inlet channel, the barrier block is inserted into the notch and together with the trough body isolates the water inlet channel, the trough body includes a first water-permeable wall and a second water-permeable wall, the first water-permeable wall is located on the side where the water inlet channel is connected to the water source end, the second water-permeable wall is located on the side where the water inlet channel is connected to the water valve end, and the water entering from the water source end enters the trough body through the first water-permeable wall and then flows to the water valve end through the second water-permeable wall.

[0012] As some sub-solutions of the above technical solution, the filter element is detachably connected to the water inlet channel.

[0013] As some sub-solutions of the above technical solution, the filter element includes a filter tank, and the filter tank is sealed and connected to the side wall of the pipeline plate to form the filter cavity.

[0014] As some sub-schemes of the above technical scheme, a detergent outlet is provided on the lower side of the dispenser, and a gate is rotatably connected inside the dispenser, and the gate closes or opens the detergent outlet. The gate is made of floating material, and a limit stop bar is provided inside the dispenser. When the gate closes the detergent outlet, a cleaning cake delivery trough is formed between the gate, the bottom wall of the dispenser and the limit stop bar.

[0015] As some sub-solutions of the above technical solution, the limit stop bar includes a vertical stop bar connected to the bottom wall of the distributor and a guide bar connected to the lateral side wall of the limit stop bar, and the cleaning cake delivery groove is formed between the vertical stop bar and the gate.

[0016] As some sub-solutions of the above technical solution, an overflow port is provided on the top side of the distributor.

[0017] As some sub-solutions of the above technical solution, a filter is provided at the detergent outlet.

[0018] As some sub-solutions of the above technical solution, the dishwasher also includes a filter cover, which is arranged at the water return port, and the filter cover is sealed and connected to the water tank at the water return port. The filter cover is provided with a first interface and a second interface, the first outlet of the water inlet three-way valve is connected to the interior of the water tank through a pipe connected to the first interface, and the input end of the water pump is connected to the interior of the water tank through a pipe connected to the second interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 A schematic diagram of a water tank for a dishwasher;

[0021] Figure 2 A schematic diagram of a water circuit assembly for a dishwasher Figure 1 ;

[0022] Figure 3 A schematic diagram of a water circuit assembly for a dishwasher Figure 2 ;

[0023] Figure 4 The axonometric view of the rear side wall of the pipe plate is hidden;

[0024] Figure 5 The exploded view of the rear side wall of the pipe plate is hidden;

[0025] Figure 6 For the distributor along Figure 2 The sectional view after cutting along the A plane;

[0026] Figure 7 Schematic diagram of solid detergent before and after dissolving in the dispenser.

[0027] In the attached figure:

[0028] 1- Water tank;

[0029] 2-dispenser; 20-cleaning cake delivery slot; 21-detergent outlet; 22-overflow port; 23-limiting stop bar; 231-vertical stop bar; 232-guide bar;

[0030] 31-water inlet three-way valve; 311-water source inlet; 32-water pump; 321-input end; 33-water supply three-way valve; 332-washing water supply port; 333-drain port;

[0031] 4-Filter cover;

[0032] 5-pipeline plate; 50-water inlet channel; 51-gap; 52-water source end; 53-water valve end;

[0033] 6-filter element; 61-tank body; 611-first water-permeable wall; 612-second water-permeable wall; 62-blocking block;

[0034] 71-gate;

[0035] 8-Solid detergent;

[0036] 9-Spray arm. DETAILED DESCRIPTION

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and 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 should not be understood as a limitation on the present invention.

[0039] In the description of the present invention, if there is a short sentence containing multiple parallel features, the attributive defines the closest feature, for example: B, C, and E connected to D are arranged on A, which means that B is arranged on A and E is connected to D, and does not constitute a limitation on C; but attributives that indicate the relationship between features, such as "interval arrangement" or "circular arrangement", do not belong to this category. If the word "all" is preceded by an attributive, it means that all features in the short sentence are limited, such as B, C, and D are all arranged on A, which means that B, C, and D are all arranged on A. For a sentence with an omitted subject, the omitted subject is the subject of the previous sentence, that is, B is arranged on A, including C, which means that B is arranged on A and A includes C.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0041] Combine the following Figures 1 to 7 Embodiments of the present invention are described.

[0042] The present embodiment relates to a dishwasher which uses only one water pump 32 to realize both water supply and drainage functions.

[0043] Reference Figures 1 to 3 , a dishwasher in this embodiment includes:

[0044] A water tank 1 is used to accommodate objects to be cleaned, and a water return port is provided at the bottom of the water tank 1;

[0045] A dispenser 2, arranged on the water tank 1, the dispenser 2 comprises a liquid outlet communicated with the interior of the water tank 1, and the dispenser 2 is used to store detergent;

[0046] A water circuit assembly includes a water inlet three-way valve 31, a water pump 32, and a water supply three-way valve 33. The water inlet three-way valve 31 is installed on the water tank 1. The water inlet three-way valve 31 includes a water source inlet 311, a first outlet, and a distribution port. The water source inlet 311 is connected to an external water source, the first outlet is connected to the interior of the water tank 1, and the distribution port is connected to the distributor 2. When the water inlet three-way valve 31 is in an open state, the water source inlet 311 is connected to the first outlet and the distribution port. When the water inlet three-way valve 31 is in a closed state, the water source inlet 311 is not connected to the first outlet and the distributor 2.

[0047] The water supply three-way valve 33 is arranged on the water tank 1, and the input end 321 of the water pump 32 is connected to the interior of the water tank 1. The water supply three-way valve 33 includes a water inlet, a cleaning water supply port 332, and a drain port 333. The water inlet is connected to the output end of the water pump 32; the water supply three-way valve 33 includes a drain state and a wash state. In the wash state, the water inlet is connected to the cleansing water supply port 332; in the drain state, the water inlet is connected to the drain port 333.

[0048] The dishwasher of the present invention is provided with a water inlet three-way valve 31, and an external water source such as tap water can supply water to the inside of the water tank 1 and the dispenser 2 at the same time through the water inlet three-way valve 31, so that the detergent can be fully washed away with the help of the external water source, thereby improving the utilization rate of the detergent; a water supply three-way valve 33 is configured, and a water pump 32 supplies water to a cleaning water supply port 332 or a drain port 333 through the water supply three-way valve 33, thereby saving the number of water pumps 32 and reducing costs.

[0049] Specifically, a dishwasher of the present invention includes three states. The first state is a water inlet state. In the water inlet state, the water pump 32 is in a closed state. An external water source such as tap water enters the water inlet three-way valve 31, flows into the water tank 1 through the first outlet of the water inlet three-way valve 31, and flows to the distributor 2 through the distribution port, so that the water tank 1 is filled with water and the detergent in the distributor 2 is flushed into the water tank 1 by the water flow; the second state is a water supply state. In the water supply state, the water inlet of the water supply three-way valve 33 is connected with the cleaning water supply port 332, and the water in the water tank 1 is pumped into the water supply three-way valve 33 by the water pump 32. The cleaning water supply port 332 is supplied to the spray arm 9 used for cleaning. The water sprayed by the spray arm 9 cleans the cup body, and then falls into the water tank 1 and is pumped into the water pump 32 again for circulating cleaning; the third state is the drainage state, and the water in the water tank 1 is discharged through the drain pipe. The drain pipe is a "U"-shaped pipe with both sides of the opening facing downward. The water level in the water tank 1 is lower than the connecting position of the pipe openings on both sides of the drain pipe. In the drainage state, the water inlet of the water supply three-way valve 33 is connected with the drain port 333. The water in the water tank 1 is supplied to the drain pipe through the drain port 333 of the water supply three-way valve 33, so that the water level in the drain pipe rises above the connecting position and is discharged from the outlet of the drain pipe.

[0050] A dishwasher of the present invention realizes two functions of supplying water to the spray arm 9 and draining water through a water pump 32, which saves the number of water pumps 32 and greatly reduces the cost of the dishwasher. In addition, the dishwasher of the present invention saves the configuration of a water softener by connecting to tap water purified by a water purifier, further reducing the cost of the dishwasher. The water inlet three-way valve 31 of the present invention opens another passage to the dispenser 2, so that the detergent in the dispenser 2 is more fully flushed into the water tank 1 with the help of water to reduce residue.

[0051] When the dishwasher of the present invention is in operation, after the external water source enters the water tank 1 and the water inlet three-way valve 31 is closed, the water in the water tank 1 is circulated for cleaning to reduce impurities entering the pipeline system during the circulation process.

[0052] The dishwasher further comprises a filter cover 4, which is arranged at the water return port, and is sealedly connected to the water tank 1 at the water return port. The filter cover 4 is provided with a first interface and a second interface, and the first outlet of the water inlet three-way valve 31 is connected to the interior of the water tank 1 through a pipe connected to the first interface, and the input end 321 of the water pump 32 is connected to the interior of the water tank 1 through a pipe connected to the second interface. After the external water source enters the water tank 1 through the first outlet and the first interface, each time the water enters the input end 321 of the water pump 32 from the water tank 1, it needs to be filtered by the filter cover 4, which can reduce the impurities entering the water pump 32.

[0053] Furthermore, the water circuit assembly also includes a pipeline plate 5, on which a water inlet channel 50 is provided, and the water inlet channel 50 includes a water source end 52 and a water valve end 53, the water source end 52 is connected to an external water source through a pipeline, the water valve end 53 is connected to the water source inlet 311 of the water inlet three-way valve 31 through a pipeline, and a filter 6 is provided on the water inlet channel 50. Under ideal working conditions of the dishwasher in this embodiment, the water supplied to the water tank 1 is water filtered by a water purifier. In actual use, the water filtered by the water purifier may still contain certain impurities. In this embodiment, a filter 6 is provided on the water inlet channel 50 to further filter the external water source, which can improve the cleanliness of the water circulation in the water tank 1.

[0054] Specifically, refer to Figures 3 to 5 The water inlet channel 50 is provided with a notch 51, the filter element 6 includes a groove body 61 and a blocking block 62, the blocking block 62 is connected to the front side of the groove body 61, the rear side of the groove body 61 is sealed and connected to the rear side wall of the pipeline plate 5, the blocking block 62 is inserted into the notch 51 and together with the groove body 61 blocks the water inlet channel 50, the groove body 61 includes a first water-permeable wall 611 and a second water-permeable wall 612, the first water-permeable wall 611 is located on the side where the water inlet channel 50 is connected to the water source end 52, the second water-permeable wall 612 is located on the side where the water inlet channel 50 is connected to the water valve end 53, the water entering from the water source end 52 enters the groove body 61 through the first water-permeable wall 611 and then flows to the water valve end 53 through the second water-permeable wall 612.

[0055] External water sources, such as filtered clean water, softened soft water or tap water with different water quality conditions, enter the water inlet channel 50 through the water source end 52, and finally flow into the water tank 1 through the water valve end 53 to provide water for circulating cleaning. The filter element 6 blocks the water inlet channel 50 through the tank body 61 and the blocking block 62. When water flows to the tank body 61, it must pass through the first permeable wall 611 from the front side of the tank body 61 to enter the tank body 61 backwards, and pass through the second permeable wall 612 to the front side of the tank body 61 before flowing to the water valve end 53 and entering the water tank 1 through the water inlet three-way valve 31. This structure enables the external water source to filter the external water source twice through the first permeable wall 611 and the second permeable wall 612 when it flows into the water tank 1 through the narrow water inlet channel 50, and the filtering effect of water is better. In addition, the filter chamber in this embodiment extends along the direction of the water inlet channel 50 and its shape matches the water inlet channel 50, so that the area of ​​the first water permeable wall 611 and the second water permeable wall 612 of the filter chamber can be designed with greater freedom, thereby meeting the need for large flow capacity by increasing the area of ​​the first water permeable wall 611 and the second water permeable wall 612.

[0056] In order to conveniently clean the filter element 6, the filter element 6 is detachably connected to the water inlet channel 50. After the filter element 6 is removed from the water inlet channel 50, it can be cleaned independently, which is convenient to operate.

[0057] Before cleaning, detergent is put into the distributor 2. When the external water source enters the water tank 1 through the water inlet three-way valve 31, since the water inlet three-way valve 31 of this embodiment includes a distribution port connected to the distributor 2, a water path can be led out through the distributor 2 when the external water source enters, so that the detergent in the distributor 2 is fully flushed into the water tank 1. This can play a role of complete flushing for liquid detergents. However, for solid detergents 8 such as washing powder cakes, directly flushing the washing powder cakes into the water tank 1 is prone to clogging the pipeline system when the washing powder cakes are not completely dissolved, reducing the flow rate of the pipeline system. For this reason, the distributor 2 is also specially configured with a related structure so that the solid detergents 8 such as washing powder cakes can be put into the water tank 1 after being dissolved.

[0058] Specific reference Figure 6 and Figure 7 The lower side of the dispenser 2 is provided with a detergent outlet 21, and a gate 71 is rotatably connected inside the dispenser 2. The gate 71 closes or opens the detergent outlet 21. The gate 71 is a floating material. A limit stop bar 23 is provided inside the dispenser 2. When the gate 71 closes the detergent outlet 21, a cleaning cake delivery slot 20 is formed between the gate 71, the bottom wall of the dispenser 2 and the limit stop bar 23. After the solid detergent 8 is put into the dispenser 2, it falls into the cleaning cake delivery slot 20, and the gate 71 is restricted by the solid detergent 8 at the detergent outlet 21. After water enters the dispenser 2, as the solid detergent 8 is dissolved, the gate 71 swings upward under the action of buoyancy and gradually opens the detergent outlet 21. At this time, the water in the dispenser 2 carries the dissolved solid detergent 8 into the water tank 1, and does not cause blockage to the pipeline system of the water tank 1.

[0059] In this embodiment, the gate 71 is made of plastic so that it can float up and open the detergent outlet 21 by buoyancy when water enters the dispenser 2 .

[0060] The limiting stop bar 23 includes a vertical stop bar 231 connected to the bottom wall of the distributor 2 and a guide bar 232 connected to the lateral side wall of the limiting stop bar 23 . The cleaning cake delivery slot 20 is formed between the vertical stop bar 231 and the gate 71 .

[0061] In order to prevent the distributor 2 from being damaged when the liquid outlet fails to discharge water, an overflow port 22 is provided on the top side of the distributor 2 .

[0062] In order to prevent solid detergent with a large shape from being directly dropped into the water tank 1 through the detergent outlet 21 , a filter is provided at the detergent outlet 21 .

[0063] The preferred embodiments of the present invention are described in detail above, but the present disclosure is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of the present disclosure.

Claims

1. A dishwasher, characterized in that: include: A water tank (1) for accommodating objects to be cleaned, wherein a water return port is provided at the bottom of the water tank (1); A dispenser (2) is arranged on the water tank (1), the dispenser (2) comprising a liquid outlet communicated with the interior of the water tank (1), and the dispenser (2) is used to store detergent; a water circuit assembly comprising a water inlet three-way valve (31), a water pump (32), and a water supply three-way valve (33), the water inlet three-way valve (31) being installed on the water tank (1), the water inlet three-way valve (31) comprising a water source inlet (311), a first outlet, and a dispenser port, the water source inlet (311) being communicated with an external water source, the first outlet being communicated with the interior of the water tank (1), and the dispenser port being communicated with the dispenser The water supply three-way valve (33) is arranged on the water tank (1); the input end (321) of the water pump (32) is connected to the interior of the water tank (1); the water supply three-way valve (33) comprises a water inlet, a cleaning water supply port (332), and a drain port (333); the water inlet is connected to the output end of the water pump (32); the water supply three-way valve (33) comprises a drain state and a wash state; in the wash state, the water inlet is connected to the cleaning water supply port (332); in the drain state, the water inlet is connected to the drain port (333); The water circuit assembly further comprises a pipeline plate (5), the pipeline plate (5) being provided with a water inlet channel (50), the water inlet channel (50) comprising a water source end (52) and a water valve end (53), the water source end (52) being connected to an external water source via a pipeline, the water valve end (53) being connected to a water source inlet (311) of the water inlet three-way valve (31) via a pipeline, and the water inlet channel (50) being provided with a filter element (6); The water inlet channel (50) is provided with a notch (51), the filter element (6) comprises a trough body (61) and a blocking block (62), the blocking block (62) being connected to the front side of the trough body (61), the rear side of the trough body (61) being sealed to the inner wall of the water inlet channel (50), the blocking block (62) being inserted into the notch (51) and together with the trough body (61) blocking the water inlet channel (50), the trough body (61) comprising a first A water-permeable wall (611) and a second water-permeable wall (612), wherein the first water-permeable wall (611) is located on a side where the water inlet channel (50) is connected to the water source end (52), and the second water-permeable wall (612) is located on a side where the water inlet channel (50) is connected to the water valve end (53); water entering from the water source end (52) enters the tank body (61) through the first water-permeable wall (611) and then flows to the water valve end (53) through the second water-permeable wall (612).

2. A dishwasher according to claim 1, characterized in that: The filter element (6) is detachably connected to the water inlet channel (50).

3. A dishwasher according to claim 1, characterized in that: A detergent outlet (21) is provided at the lower side of the dispenser (2). A gate (71) is rotatably connected inside the dispenser (2). The gate (71) closes or opens the detergent outlet (21). The gate (71) is made of a floating material. A limit stop bar (23) is provided inside the dispenser (2). When the gate (71) closes the detergent outlet (21), a cleaning cake delivery slot (20) is formed between the gate (71), the bottom wall of the dispenser (2) and the limit stop bar (23).

4. A dishwasher according to claim 3, characterized in that: The limit stop bar (23) comprises a vertical stop bar (231) connected to the bottom wall of the distributor (2) and a guide bar (232) connected to the lateral side wall of the limit stop bar (23), and the cleaning cake delivery slot (20) is formed between the vertical stop bar (231) and the gate (71).

5. A dishwasher according to claim 4, characterized in that: An overflow port (22) is provided on the top side of the distributor (2).

6. A dishwasher according to claim 4, characterized in that: A filter screen is provided at the detergent outlet (21).

7. A dishwasher according to claim 1, characterized in that: The dishwasher further comprises a filter cover (4), the filter cover (4) being arranged at the water return port, the filter cover (4) being sealedly connected to the water tank (1) at the water return port, the filter cover (4) being provided with a first interface and a second interface, the first outlet of the water inlet three-way valve (31) being connected to the interior of the water tank (1) via a pipe connected to the first interface, and the input end (321) of the water pump (32) being connected to the interior of the water tank (1) via a pipe connected to the second interface.

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