Waterway system for a dishwasher

Abstract

A water system of a dishwasher, comprising an inner container, a water tank and a water softener, the water tank is provided with an intermediate water inlet, an intermediate water inlet channel, an intermediate water outlet, a water storage channel, a water storage cavity, a switching valve and a water drain valve, the water softener is provided with an intermediate channel, the intermediate water inlet is communicated with the intermediate water inlet channel, the water storage channel is communicated with the water storage cavity, the intermediate water outlet is communicated with the intermediate channel, and the intermediate channel is communicated with the inner container. The utility model discloses a water tank is provided with intermediate water inlet, intermediate water inlet channel, intermediate water outlet, water storage channel, water storage cavity, switching valve and water drain valve, and the switching valve can switch the communication of water storage channel and intermediate water outlet, when switching the communication of intermediate water outlet, water can be directly entered into the inner container, therefore when the water in the water storage cavity needs to be discharged, the dishwasher can also start to enter water and be normally used, when switching the communication of water storage channel, water flows into the water storage cavity for storage, and by opening the water drain valve, the water in the water storage cavity flows into the inner container for emergency use.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, and in particular to a water system for a dishwasher. Background Technology

[0002] Currently, there are dishwashers on the market with and without water tanks. Dishwashers without water tanks cannot store soft water, so they cannot be used if the water softener needs to be regenerated. Dishwashers with water tanks can store soft water for emergency use (such as when the water softener needs to be regenerated), but the water flow must pass through the storage chamber when the dishwasher is filled, making it difficult to manage the water flow flexibly. If the water stored in the tank becomes contaminated (such as if it will deteriorate if it is not used for a long time), the water stored in the tank needs to be drained and then refilled. During this process, the dishwasher cannot work properly, resulting in a poor dishwasher experience.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of this invention is to provide a water system for a dishwasher that is simple in structure, allows for flexible water flow management, is easy to use, provides a good user experience, and is highly practical, in order to overcome the shortcomings of the prior art.

[0005] A water system for a dishwasher designed for this purpose includes an inner tank, a water tank, and a water softener. The water tank is characterized by having a central inlet, a central inlet channel, a central outlet, a water storage channel, a water storage chamber, a switching valve, and a drain valve. The water softener has a central channel; the central inlet connects to the central inlet channel; the water storage channel connects to the water storage chamber; the central outlet connects to the central channel; and the central channel connects to the inner tank. When the switching valve is operating, the central inlet channel connects to the water storage channel, but the central inlet channel is not connected to the central outlet. When the switching valve is not operating, the central inlet channel connects to the central outlet, but the central inlet channel is not connected to the water storage channel. When the drain valve is operating, the water storage chamber connects to the central outlet; when the drain valve is not operating, the water storage chamber is not connected to the central outlet.

[0006] The water tank is equipped with an initial water inlet, an initial water inlet channel, and an initial water outlet connected in sequence. The water softener is equipped with an inlet, an outlet, and an intermediate outlet. The initial water inlet is connected to the water source, the initial water outlet is connected to the inlet, the outlet is connected to the intermediate inlet, the intermediate outlet is connected to the intermediate outlet, and the intermediate outlet is connected to the intermediate channel.

[0007] The water tank is equipped with a pressure relief outlet, a pressure relief channel, a drainage channel, a return channel, and a drain outlet. The water storage chamber is connected to the pressure relief channel through the pressure relief outlet, and the pressure relief channel is connected to the drain outlet through the drainage channel. The inner liner is equipped with a return outlet, and the pressure relief channel is connected to the return channel. The return channel is connected to the inner liner through the return outlet.

[0008] The water tank is equipped with a first water inlet and a water channel. A first through hole is provided between the first water inlet and the water storage channel, and a second through hole is provided between the first water inlet and the water channel. The intermediate water inlet channel is connected to the first water inlet, and the water channel is connected to the intermediate water outlet. The switching valve includes a first driving device and a first plug. The first driving device is driven to the first plug, and the first plug is movably disposed in the first water inlet. When the first driving device is working, it drives the first plug to retract, thereby opening the first through hole and closing the second through hole. The first water inlet is connected to the water storage channel through the first through hole. When the first driving device is not working, the first plug is reset, thereby closing the first through hole and opening the second through hole. The first water inlet is connected to the water channel through the second through hole.

[0009] The water tank is provided with a second water inlet, and a third through hole is provided between the second water inlet and the water storage chamber. The second water inlet is connected to the water channel. The drain valve includes a second drive device and a second plug. The second drive device is driven to the second plug. When the second drive device is working, it drives the second plug to move backward to open the third through hole, and the water storage chamber is connected to the second water inlet through the third through hole. When the second drive device is not working, the second plug is reset to close the third through hole.

[0010] The initial water inlet channel includes a first channel and a second channel. The initial water inlet is connected to the first channel, and the second channel is connected to the initial water outlet. A diverter block is provided at the inlet of the second channel, and a flow channel is formed between the diverter block and the inner wall of the water tank. The first channel is connected to the second channel through the flow channel.

[0011] The water tank is equipped with an inlet and outlet vent, a hidden channel, and a vent. An inlet and outlet vent are provided between the first channel, the second channel, and the diversion block. The flow channel is connected to the inlet and outlet vent through the inlet and outlet vent. The inlet and outlet vent is connected to the pressure relief and discharge channel through the hidden channel. The return channel is connected to the vent.

[0012] The first end of the drainage channel is provided with a water passage hole and a swingable second valve plate. The second valve plate is inclined. When the second valve plate is in the waiting state, it closes the water passage hole so that the pressure relief and drainage channel and the drainage channel are not connected. When the second valve plate is swung upward under the action of water flow, it opens the water passage hole, and the pressure relief and drainage channel is connected to the drainage channel through the water passage hole.

[0013] A water collection cup is installed at the bottom of the inner liner, and a middle channel connects to the water collection cup, which in turn connects to the inner liner.

[0014] The drain outlet includes a first drain outlet and a second drain outlet, and the drain channel connects the first drain outlet and the second drain outlet respectively. The first drain outlet is connected to the water collection cup.

[0015] The dishwasher water system of this utility model is equipped with a central water inlet, a central water inlet channel, a central water outlet, a water storage channel, a water storage chamber, a switching valve, and a drain valve on the water tank. The switching valve can switch between connecting the water storage channel and the central water outlet. When connected to the central water outlet, water can directly enter the inner tank without passing through the water storage chamber. Therefore, even if the water in the water storage chamber deteriorates and needs to be drained, the dishwasher can still start to enter water and operate normally. When connected to the water storage channel, water flows into the water storage chamber for storage. By opening the drain valve, water in the water storage chamber can flow into the inner tank for emergency use (such as when the water softener needs to be regenerated). This allows for flexible management of water flow and improves the user experience. Attached Figure Description

[0016] Figure 1 This is a partial structural diagram of a dishwasher according to one embodiment of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of a dishwasher according to one embodiment of the present invention.

[0018] Figure 3 This is a partial structural diagram of the dishwasher from another position in one embodiment of the present invention.

[0019] Figure 4 This is a water circuit diagram of the water tank in one embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the overall structure of the bottom cover in one embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the overall structure of the bottom cover from another position in one embodiment of the present invention.

[0022] Figure 7 This is a partial cross-sectional view of the water tank in one embodiment of the present invention.

[0023] Figure 8 This is a cross-sectional view of another part of the water tank structure in one embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the overall structure of the switching valve or drain valve in one embodiment of the present invention.

[0025] Figure 10 This is an exploded view of the water softener in one embodiment of the present invention.

[0026] Figure 11 This is an exploded structural diagram of the top cover and bottom cover in one embodiment of the present invention.

[0027] Figure 12 This is a schematic diagram of the assembly structure of the bottom cover and the diverter block in one embodiment of the present invention. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See Figures 1-12 The water system of this dishwasher includes an inner tank 1, a water tank 2, and a water softener 3. The water tank 2 is equipped with a central inlet 4, a central inlet channel 5, a central outlet 6, a water storage channel 7, a water storage chamber 8, a switching valve 9, and a drain valve 10. The water softener 3 is equipped with a central channel 11. The central inlet 4 connects to the central inlet channel 5, the water storage channel 7 connects to the water storage chamber 8, the central outlet 6 connects to the central channel 11, and the central channel 11 connects to the inner tank 1. When the switching valve 9 is working, the central inlet channel 5 connects to the water storage channel 7, and the central inlet channel 5 is not connected to the central outlet 6. Water flows from the central inlet 4 into the water tank 2, and then sequentially through the central inlet channel 5 and the water storage channel 7 into the water storage chamber 8, thus storing softened water. The switching valve 9... When not in operation, the intermediate water inlet channel 5 is connected to the intermediate water outlet 6, and the intermediate water inlet channel 5 is not connected to the water storage channel 7. Water flows from the intermediate water inlet 4 into the water tank 2, then through the intermediate water inlet channel 5 to the intermediate water outlet 6, and then out of the water tank 2 through the intermediate water outlet 6. It then flows into the intermediate channel 11 of the water softener 3, and finally into the inner tank 1, thus enabling the dishwasher to fill with water. When the drain valve 10 is working, the water storage chamber 8 is connected to the intermediate water outlet 6. Water in the water storage chamber 8 flows out of the water tank 2 through the intermediate water outlet 6, then flows into the intermediate channel 11 of the water softener 3, and finally into the inner tank 1, thus enabling the dishwasher to fill with water. When the drain valve 10 is not working, the water storage chamber 8 is not connected to the intermediate water outlet 6, and the water in the water storage chamber 8 cannot flow to the intermediate water outlet 6.

[0030] Water tank 2 is provided with an initial water inlet 12, an initial water inlet channel 13, and an initial water outlet 14 connected in sequence. Water softener 3 is provided with an inlet 15, an outlet 16, and an intermediate outlet 17. The bottom of inner tank 1 is provided with an inlet valve 43. The initial water inlet 12 is connected to the inlet valve 43, the inlet valve 43 is connected to the water source, the initial water outlet 14 is connected to the inlet 15, the outlet 16 is connected to the intermediate inlet 4, the intermediate outlet 6 is connected to the intermediate outlet 17, and the intermediate outlet 17 is connected to the intermediate outlet 17. Intermediate channel 11; external water enters the water tank 2 through the initial inlet 12, then flows through the initial inlet channel 13 to the initial inlet 12, and flows out of the water tank 2 through the initial outlet 14, and then flows into the water softener 3 through the inlet 15. The hard water is softened by the water softener 3, and then the soft water flows out of the water softener 3 through the outlet 16, and then flows back into the water tank 2 through the intermediate inlet 4; the water circuit structure and working principle of the water softener 3 are existing technologies and will not be described in detail here.

[0031] The water tank 2 is equipped with a pressure relief outlet 18, a pressure relief channel 19, a drainage channel 20, a return channel 21, and a drain outlet. The water storage chamber 8 is connected to the pressure relief channel 19 through the pressure relief outlet 18, and the pressure relief channel 19 is connected to the drain outlet through the drainage channel 20. The inner liner 1 is equipped with a return outlet 42 on its side. The pressure relief channel 19 is connected to the return channel 21, and the return channel 21 is connected to the inner liner 1 through the return outlet 42. The water storage chamber 8 can be ventilated, depressurized, or drained through the pressure relief outlet 18. When depressurizing or draining, the water in the water storage chamber 8 flows sequentially through the pressure relief outlet 18 and the pressure relief channel 19 to the return channel 21, and then enters the inner liner 1 through the return outlet 42.

[0032] The water tank 2 is provided with a first water inlet 22 and a water channel 23. A first through hole 24 is provided between the first water inlet 22 and the water storage channel 7, and a second through hole 25 is provided between the first water inlet 22 and the water channel 23. The intermediate water inlet channel 5 is connected to the first water inlet 22, and the water channel 23 is connected to the intermediate water outlet 6. The switching valve 9 includes a first driving device 26 and a first plug 27. The first driving device 26 is driven by the first plug 27, and the first plug 27 is movably disposed in the first water inlet 22. When the first driving device 26 is working, it drives the first plug 27. 7. Reverse to open the first through hole 24 and close the second through hole 25. The first water inlet 22 connects to the water storage channel 7 through the first through hole 24, thereby connecting the intermediate water inlet channel 5 to the water storage channel 7. When the first drive device 26 is not working, the first plug 27 resets to close the first through hole 24 and open the second through hole 25. The first water inlet 22 connects to the water channel 23 through the second through hole 25, thereby connecting the intermediate water inlet channel 5 to the intermediate water outlet 6. The first drive device 26 is a wax motor. The working principle of the wax motor is existing technology and will not be described in detail here.

[0033] The water tank 2 is provided with a second water inlet 28, and a third through hole 29 is provided between the second water inlet 28 and the water storage chamber 8. The second water inlet 28 is connected to the water channel 23. The drain valve 10 includes a second drive device 30 and a second plug 31. The second drive device 30 is connected to the second plug 31. When the second drive device 30 is working, it drives the second plug 31 to retract to open the third through hole 29. The water storage chamber 8 is connected to the second water inlet 28 through the third through hole 29 so that the water storage chamber 8 is connected to the intermediate water outlet 6. When the second drive device 30 is not working, the second plug 31 is reset to close the third through hole 29 so that the water storage chamber 8 is not connected to the intermediate water outlet 6. The second drive device 30 is a wax motor. The working principle of the wax motor is existing technology and will not be described in detail here.

[0034] The initial water inlet channel 13 includes a first channel 32 and a second channel 33. The initial water inlet 12 is connected to the first channel 32, and the second channel 33 is connected to the initial water outlet 14. The inlet of the second channel 33 is provided with a diverter block 34. The diverter block 34 and the inner wall of the water tank 2 form a flow channel 52. The first channel 32 is connected to the second channel 33 through the flow channel 52. When water is introduced, the diverter block 34 can discharge the air mixed in the water, so that the subsequent water flow is smoother.

[0035] Water tank 2 is equipped with an inlet / outlet vent 35, a concealed channel 53, and a vent 54. An inlet / outlet vent 36 is located between the first channel 32, the second channel 33, and the diversion block 34. The flow channel 52 connects to the inlet / outlet vent 35 via the inlet / outlet vent 36. The inlet / outlet vent 35 connects to the pressure relief / flow channel 19 via the concealed channel 53. The return channel 21 connects to the vent 54, which connects to the outside. When water enters the diversion block 34, the air mixed in the water passes through the inlet / outlet vent 36 and the inlet / outlet vent 54 in sequence. Water is discharged into the duct 53 through the vent 35, and then air flows to the pressure relief and discharge channel 19, then through the return channel 21 to the vent 54, and finally discharged to the outside through the vent 54, thus realizing water intake and air exhaust. In addition, when water intake stops, the diversion block 34 is connected to the outside atmosphere through the duct 53, the pressure relief and discharge channel 19, the return channel 21 and the vent 54, and the return port 42 is connected to the outside atmosphere through the vent 54 to achieve air pressure balance, which can prevent siphoning during water intake and drainage.

[0036] A flow meter 44 for monitoring water flow is installed on the first channel 32.

[0037] The first end of the drainage channel 20 is provided with a water passage hole 37 and a swingable second valve plate 38. The second valve plate 38 is inclined. When the second valve plate 38 is in the waiting state, it closes the water passage hole 37 so that the pressure relief channel 19 and the drainage channel 20 are not connected. Under the action of water flow, the second valve plate 38 swings upward to open the water passage hole 37, and the pressure relief channel 19 is connected to the drainage channel 20 through the water passage hole 37. When the water storage chamber 8 drains, the water flows through the pressure relief outlet 18 and the pressure relief channel 19 to the water passage hole 37 in sequence. The second valve plate 38 swings upward under the action of water flow, and then the water flows through the water passage hole 37 into the drainage channel 20, and finally exits from the drain outlet into the water tank 2. When there is no water flow through the water passage hole 37, the second valve plate 38 swings downward to reset to the waiting state under the action of gravity. This structure can prevent the water flow from flowing back due to negative pressure, that is, prevent the water flow from the drainage channel 20 back to the pressure relief channel 19, and achieve the anti-siphon effect.

[0038] The bottom of the inner tank 1 is provided with a water collection cup 39, and the middle channel 11 connects to the water collection cup 39. The water collection cup 39 connects to the inner tank 1. The outside of the water softener 3 is provided with a water inlet connector 45, and the middle channel 11 connects to the water inlet connector 45. The water inlet connector 45 is connected to the water collection cup 39 through the water inlet pipe 46, thereby connecting the middle channel 11 to the water collection cup 39. Water flows into the water collection cup 39 after passing through the middle channel 11, and then is pumped into the inner tank 1 by the water pump.

[0039] The drain outlet includes a first drain outlet 40 and a second drain outlet 41. The drain channel 20 connects the first drain outlet 40 and the second drain outlet 41 respectively. The first drain outlet 40 is connected to the water collection cup 39. The first drain outlet 40 is connected to the water collection cup 39 through the first drain pipe 47. The second drain outlet 41 is connected to the sewer through the second drain pipe 48. After the water in the water storage chamber 8 is discharged from the water tank 2, it can be discharged into the water collection cup 39 through the first drain pipe 47 or discharged into the sewer through the second drain pipe 48.

[0040] The water tank 2 is located on the side of the inner tank 1 and includes a front cover 50 and a bottom cover 51 welded together, forming a water passage between the front cover 50 and the bottom cover 51; the water softener 3 is located at the bottom of the inner tank 1.

[0041] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water system for a dishwasher, comprising an inner tank (1), a water tank (2), and a water softener (3), characterized in that: The water tank (2) is equipped with a central inlet (4), a central inlet channel (5), a central outlet (6), a water storage channel (7), a water storage chamber (8), a switching valve (9), and a drain valve (10). The water softener (3) is equipped with a central channel (11). The central inlet (4) is connected to the central inlet channel (5), the water storage channel (7) is connected to the water storage chamber (8), the central outlet (6) is connected to the central channel (11), and the central channel (11) is connected to the inner tank (1). When valve (9) is working, the intermediate water inlet channel (5) is connected to the water storage channel (7), and the intermediate water inlet channel (5) is not connected to the intermediate water outlet (6); when switching valve (9) is not working, the intermediate water inlet channel (5) is connected to the intermediate water outlet (6), and the intermediate water inlet channel (5) is not connected to the water storage channel (7); when drain valve (10) is working, the water storage chamber (8) is connected to the intermediate water outlet (6); when drain valve (10) is not working, the water storage chamber (8) is not connected to the intermediate water outlet (6).

2. The water system of the dishwasher according to claim 1, characterized in that: The water tank (2) is provided with an initial water inlet (12), an initial water inlet channel (13) and an initial water outlet (14) connected in sequence. The water softener (3) is provided with an inlet (15), an outlet (16) and an intermediate port (17). The initial water inlet (12) is connected to the water source, the initial water outlet (14) is connected to the inlet (15), the outlet (16) is connected to the intermediate inlet (4), the intermediate outlet (6) is connected to the intermediate port (17), and the intermediate port (17) is connected to the intermediate channel (11).

3. The water system of the dishwasher according to claim 2, characterized in that: The water tank (2) is provided with a pressure relief outlet (18), a pressure relief channel (19), a drainage channel (20), a return channel (21) and a drain outlet. The water storage chamber (8) is connected to the pressure relief channel (19) through the pressure relief outlet (18). The pressure relief channel (19) is connected to the drain outlet through the drainage channel (20). The inner liner (1) is provided with a return outlet (42). The pressure relief channel (19) is connected to the return channel (21). The return channel (21) is connected to the inner liner (1) through the return outlet (42).

4. The water system of the dishwasher according to claim 1, characterized in that: The water tank (2) is provided with a first water inlet (22) and a water channel (23). A first through hole (24) is provided between the first water inlet (22) and the water storage channel (7). A second through hole (25) is provided between the first water inlet (22) and the water channel (23). The intermediate water inlet channel (5) is connected to the first water inlet (22). The water channel (23) is connected to the intermediate water outlet (6). The switching valve (9) includes a first driving device (26) and a first plug (27). The first driving device (26) is connected to the first plug (27) in a transmission manner. The first plug (27) is movable inside the first water inlet (22); when the first drive device (26) is working, it drives the first plug (27) to move backward to open the first through hole (24) and close the second through hole (25), and the first water inlet (22) is connected to the water storage channel (7) through the first through hole (24); when the first drive device (26) is not working, the first plug (27) is reset to close the first through hole (24) and open the second through hole (25), and the first water inlet (22) is connected to the water channel (23) through the second through hole (25).

5. The water system of the dishwasher according to claim 4, characterized in that: A second water inlet (28) is provided on the water tank (2). A third through hole (29) is provided between the second water inlet (28) and the water storage chamber (8). The second water inlet (28) is connected to the water channel (23). The drain valve (10) includes a second drive device (30) and a second plug (31). The second drive device (30) is connected to the second plug (31) in a transmission manner. When the second drive device (30) is working, it drives the second plug (31) to move backward to open the third through hole (29). The water storage chamber (8) is connected to the second water inlet (28) through the third through hole (29). When the second drive device (30) is not working, the second plug (31) is reset to close the third through hole (29).

6. The water system of the dishwasher according to claim 3, characterized in that: The initial water inlet channel (13) includes a first channel (32) and a second channel (33). The initial water inlet (12) is connected to the first channel (32), and the second channel (33) is connected to the initial water outlet (14). A diversion block (34) is provided at the inlet of the second channel (33). A flow channel (52) is formed between the diversion block (34) and the inner wall of the water tank (2). The first channel (32) is connected to the second channel (33) through the flow channel (52).

7. The water system of the dishwasher according to claim 6, characterized in that: The water tank (2) is provided with an inlet and outlet vent (35), a hidden channel (53) and a vent (54). An inlet and outlet vent (36) is provided between the first channel (32), the second channel (33) and the diversion block (34). The flow channel (52) is connected to the inlet and outlet vent (35) through the inlet and outlet vent (36). The inlet and outlet vent (35) is connected to the pressure relief and discharge channel (19) through the hidden channel (53). The return channel (21) is connected to the vent (54).

8. The water system of the dishwasher according to claim 3, characterized in that: The first end of the drainage channel (20) is provided with a water passage hole (37) and a swingable second valve plate (38). The second valve plate (38) is inclined. When the second valve plate (38) is in a waiting state, it closes the water passage hole (37) so that the pressure relief and drainage channel (19) and the drainage channel (20) are not connected. When the second valve plate (38) swings upward under the action of water flow, it opens the water passage hole (37). The pressure relief and drainage channel (19) is connected to the drainage channel (20) through the water passage hole (37).

9. The water system of the dishwasher according to claim 3, characterized in that: The bottom of the inner liner (1) is provided with a water collection cup (39), and the middle channel (11) connects to the water collection cup (39), and the water collection cup (39) connects to the inner liner (1).

10. The water system of the dishwasher according to claim 9, characterized in that: The drain outlet includes a first drain outlet (40) and a second drain outlet (41). The drain channel (20) is connected to the first drain outlet (40) and the second drain outlet (41) respectively. The first drain outlet (40) is connected to the water collection cup (39).

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