CN212729722U

CN212729722U - Dish washing machine

Info

Publication number: CN212729722U
Application number: CN202020990090.4U
Authority: CN
Inventors: 刘日超; 杨琳; 唐丽
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-03-19
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a dish washing machine, which comprises an inner container, a water cup, a water tank, a first valve, a flushing pipeline, a Venturi tube and a drainage tube; the water cup is arranged in the inner container, and a residual water discharge port is formed in the lower end of the water cup; the water tank is communicated with the water cup; the first valve is arranged between the water tank and the water cup and is used for conducting or blocking the water tank and the water cup; the water outlet end of the flushing pipeline is communicated with the water tank, and the water inlet end of the flushing pipeline is communicated with a water source; the venturi tube is arranged on the flushing pipeline; one end of the drainage tube is communicated with the negative pressure port of the Venturi tube, and the other end of the drainage tube is communicated with the residual water discharge port. The technical scheme of the utility model can not cause the water source extravagant when can getting rid of the residual water in the drinking cup.

Description

Dish washing machine

Technical Field

The utility model relates to a kitchen appliance technical field, in particular to dish washer.

Background

The existing dish washer mainly uses water to wash tableware, and combines the effects of high temperature and detergent to clean the tableware.

The water flow system of the dishwasher includes a water inlet system, a washing cycle system, and a water discharge system. The drainage system mainly comprises a water cup, a drainage motor pump, a drainage pipe and the like. The water in the water cup is sucked by the drainage pump through rotating the impeller at a high speed.

After the drain pump starts a period of time, along with the reduction of the inside water yield of drinking cup, when the liquid level was less than the diameter of drain pipe water inlet in the drinking cup, can arouse the drain pump suction air, just this moment can lead to this part of water in the dish washer thoroughly to drain.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a dish washing machine, which aims to solve the technical problem that residual water in a water cup of the dish washing machine can not be drained to the greatest extent.

In order to achieve the above object, the present invention provides a dishwasher including an inner container, the dishwasher further comprising:

the water cup is arranged in the inner container, and a residual water discharge port is formed in the lower end of the water cup;

the water tank is communicated with the water cup;

the first valve is arranged between the water tank and the water cup and is used for conducting or blocking the water tank and the water cup;

the water outlet end of the flushing pipeline is communicated with the water tank, and the water inlet end of the flushing pipeline is communicated with a water source;

the Venturi tube is arranged on the flushing pipeline;

and one end of the drainage tube is communicated with the negative pressure port of the Venturi tube, and the other end of the drainage tube is communicated with the residual water discharge port.

In one embodiment, a second valve is disposed on the flush line between the venturi and the tank.

In one embodiment, a third valve is disposed on the flush line between the inlet end of the flush line and the venturi.

In an embodiment, the second valve is a one-way valve, and/or the third valve is a one-way valve.

In one embodiment, the residual water discharge port is arranged at the bottom of the water cup.

In one embodiment, the cup bottom is inclined toward the residual water discharging port.

In one embodiment, the cup bottom is inclined toward the residual water discharge port at an angle of 5 ° to 15 °.

In one embodiment, the residual water discharge port includes a plurality of through-holes having a diameter ranging from 1mm to 3 mm.

In one embodiment, the side wall of the water cup is provided with a water outlet for communicating with a water discharge pipe, the lower edge of the water outlet is flush with the bottom of the water cup, and the residual water discharge port is positioned at the bottom of the water outlet.

In one embodiment, the water tank is positioned higher than the water cup.

In one embodiment, the dishwasher further comprises a water inlet pipe, a water outlet pipe and a respirator, wherein the water inlet pipe is communicated with the inner container or the water cup and is used for filling water into the water cup; the water drainage pipe is communicated with the water cup and used for draining water in the water cup, and the respirator is arranged on the water drainage pipe.

According to the technical scheme of the utility model, on one hand, the venturi tube is arranged on the flushing pipeline, so that residual water in the water cup can be removed; on the other hand, due to the arrangement of the water tank, water entering the flushing pipeline can be stored in the water tank after flowing through the venturi tube, so that the water tank is convenient to use next time, and water source waste can not be caused.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of a dishwasher of the present invention;

FIG. 2 is a schematic structural view of another embodiment of the dishwasher of the present invention;

fig. 3 is a schematic structural diagram of another embodiment of the present invention;

fig. 4 is a schematic structural diagram of another embodiment of the present invention;

FIG. 5 is a schematic view of one embodiment of the assembled relationship of the cup and the drain tube of FIG. 3;

FIG. 6 is a schematic view of another embodiment of the assembled relationship of the cup and the drain tube of FIG. 3;

FIG. 7 is a schematic view of another embodiment of the assembled relationship of the cup and the drain tube of FIG. 3;

fig. 8 is a schematic view of an assembly structure of the insert and the cup bottom of the water cup in fig. 3.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name (R)
						1	Water inlet end	8	Inner container	17	Drainage tube
1A	Water inlet end of water inlet pipe	9	Upper bowl basket	18	Water tank
						1B	Water inlet end of flushing pipe	10	Lower bowl basket	19	First valve
2	Water inlet pipe	11	Water discharge pump	20	Water leakage mouth
						3	Water cup	12	Drain pipe	21	Insert piece
4	Washing pump	13	Breathing apparatus	30	Water outlet
						5	Lower spray arm	14	Third valve	31	Cup bottom of cup
6	Middle spray arm	15	Venturi tube	32	Side wall of cup
						7	Upper spray arm	16	Second valve	1C	Flushing pipeline

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be noted that if the embodiments of the present invention are described with reference to "first", "second", etc., the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.

Referring to fig. 1, the present invention provides a dish washer, which comprises a liner 8, a cup 3, a water tank 18, a first valve 19, a flushing pipe 1C, a venturi tube 15 and a drainage tube 17.

Wherein, the water cup 3 is arranged in the inner container 8, and the lower end of the water cup 3 is provided with a residual water discharge port (not marked in the figure). The water tank 18 is communicated with the water cup 3; the first valve 19 is disposed between the water tank 18 and the water cup 3, and the first valve 19 is used for connecting or blocking the water tank 18 and the water cup 3. The water outlet end of the flushing pipeline 1C is communicated with the water tank 18, and the water inlet end 1B of the flushing pipeline 1C is used for being communicated with a water source; the venturi tube 15 is provided on the flush water line 1C. One end of the drainage tube 17 is communicated with the negative pressure port of the venturi tube 15, and the other end is communicated with the residual water discharge port.

Generally, the dishwasher mainly comprises a housing, a liner 8, a water cup 3, a water inlet pipe 2, a water discharge pipe 12, a water discharge pump 11, a washing pump 4 and a spray arm (an upper spray arm 7, a middle spray arm 6 and a lower spray arm 5), wherein the liner 8 and the water cup 3 are arranged in the housing, the water cup 3 is arranged below the liner 8, the water inlet pipe 2 is connected to a water inlet of the water cup 3, the water discharge pipe 12 is connected to a water outlet 30 (please refer to fig. 7) of the water cup 3, the water discharge pump 11 is positioned on the water discharge pipe 12, and the spray arm is communicated with the. When washing, water is injected into the cup 3 from the water inlet end 1A of the water inlet pipe, the washing pump 4 pumps the water in the cup 3 to the spray arms, and water is sprayed to the tableware through the spray arms, so as to clean the tableware, wherein the number of the spray arms is generally multiple, and for example, the spray arms comprise an upper spray arm 7, a middle spray arm 6 and a lower spray arm 5. The upper spray arm 7 mainly washes the dishes in the upper bowl basket 9, and the middle spray arm 6 and the lower spray arm 5 mainly washes the dishes in the lower bowl basket 10. When the washing is completed, the water in the cup 3 can be discharged through the water discharge pipe 12. The drain pipe 12 can be further provided with a breather 13, the breather 13 is used for leading out hot air in the dish washing machine and preventing heat from being accumulated in the dish washing cavity, and meanwhile, the breather 13 also has the functions of water inlet shunting and storage.

After the washing of the dishes is completed, the water is flushed through the flush pipe 1C, and the water flows through the venturi tube 15 along the flush pipe 1C into the water tank 18. Here, as the water flow passes through the venturi tube 15, the venturi tube 15 generates a negative pressure at its throat, and a negative pressure port is provided at the negative pressure, so that under the action of the negative pressure, the water in the cup 3 is sucked away by the drainage tube 17, and enters the flushing pipeline 1C together, and finally enters the water tank 18 for storage.

When the tableware is washed next time, the first valve 19 can be opened, and the water stored in the water tank 18 flows into the water cup 3 for washing the tableware.

According to the technical scheme of the utility model, on one hand, the venturi tube 15 is arranged on the flushing pipeline 1C, so that residual water in the water cup 3 can be removed; on the other hand, due to the arrangement of the water tank 18, the water entering the flushing pipeline 1C can be stored in the water tank 18 after flowing through the venturi tube 15, so that the water tank is convenient to use next time, and water source waste is avoided.

In the above embodiment, referring to fig. 1 and fig. 2, a valve may or may not be provided between the venturi 15 and the water tank 18. For the embodiment without a valve (fig. 1), the end of the flushing pipeline 1C may be communicated with the upper end of the water tank 18, and after water enters the water tank 18 through the flushing pipeline 1C, when the liquid level of the water tank 18 is lower than the communication position of the flushing pipeline 1C and the water tank 18, the water will not flow backwards through the flushing pipeline.

In order to ensure that the water in the water tank 18 does not flow backwards through the flushing pipe 1C, in this embodiment (see fig. 2), a second valve 16 is further disposed on the flushing pipe 1C, and the second valve 16 is located between the venturi tube 15 and the water tank 18. The second valve 16 may be an on-off valve (e.g., a solenoid valve) or a check valve. In the case where the second valve 16 is a solenoid valve, when the dishwasher is in the destuffing mode, the second valve 16 is opened and water flows along the flush line 1C into the tank 18. When the dishwasher is in the washing mode, the second valve 16 is closed so that water in the tank 18 does not flow backwards along the flush line 1C. For embodiments in which the second valve 16 is a one-way valve, the second valve 16 need not be controlled and the flow of water in the tank 18 will not be reversed by the second valve 16.

In the above embodiment, it is considered that when the dishwasher is in the washing mode, a part of the water flow enters the venturi tube 15 along the draft tube 17 to cause a siphon phenomenon, which may cause the venturi tube 15 to be blocked on the one hand, and the water flow to leak on the other hand, which is not favorable for washing. In view of this, in the embodiment, referring to fig. 3, a third valve 14 is disposed on the flushing pipe 1C, and the third valve 14 is located between the water inlet end 1B of the flushing pipe and the venturi tube 15. The third valve 14 may be an on-off valve (e.g., a solenoid valve) or a check valve. Considering that the switch valve needs to be controlled, for example, the electromagnetic valve needs to be powered on, and the on or off of the electromagnetic valve is controlled through the operation mode of the dishwasher, the one-way valve is convenient, water can flow along the water inlet end 1B of the flushing pipeline towards the water tank 18 for a long time, and water in the water cup 3 cannot flow backwards through the drainage pipe 17. Therefore, in this embodiment, the third valve 14 is preferably a one-way valve.

There are various arrangements for the position of the residual water discharge port, for example, at the bottom 31 (fig. 1 to 3) of the cup, the side wall 32 (fig. 4) of the cup. For embodiments in which the residual water discharge opening is provided in the side wall 32 of the cup, the residual water discharge opening should not be too high from the bottom 31 of the cup (the height difference is not greater than 2mm, e.g. 0, 1mm, 2mm), since the height difference directly determines how much water in the cup 3 cannot be discharged.

Referring to fig. 5 and 6 on the basis of the above embodiment, in order to discharge the remaining water as completely as possible, in the present embodiment, the cup bottom 31 is inclined toward the remaining water discharge port.

For example, the cup bottom 31 is inclined in the same direction (fig. 5), and the residual water discharging port is located at the lowest position of the cup bottom 31. For another example, the residual water discharging port is located at a middle position of the cup bottom 31 (fig. 6), and the cup bottom 31 is inclined toward the residual water discharging port from other directions.

In the case where the cup bottom 31 is inclined, the inclination angle α may be in the range of 0 to 90 °, but it is considered that if the inclination angle is too large, the cup 3 is too high, and thus occupies a large space. In view of this, in a preferred embodiment, the cup bottom 31 is inclined toward the residual water discharge port at an angle of 5 ° to 15 °, for example, 7 °, 8 °, 9 °, 10 °, 11 °, 12 °, 13 °, 14 °. The angle is enough for water flow to flow towards the lower part, and the structure (occupied space) of the cup bottom of the water cup 3 cannot be greatly influenced.

Referring to fig. 8, in the washing mode or the residue removing mode of the dishwasher, food residue in water often blocks a residual water discharge port, thereby affecting residue removing efficiency. In a preferred embodiment, the cup bottom 31 of the cup is provided with a water leaking port 20, an insert 21 is installed at the water leaking port 20, a plurality of through holes are formed in the insert 21, the through holes jointly form a residual water discharging port, and the diameter range of the through holes is 1 mm-3 mm. So, on the one hand, the probability that food waste blocks up residual water discharge port can be reduced in the setting of a plurality of through-holes, and on the other hand, food waste size (length or width) can be greater than 3mm usually to residual water discharge port is difficult for blockking up.

It is mentioned in the foregoing that the discharge opening for the residual water may be provided in the bottom 31 of the cup or in the side wall 32 of the cup. In the present embodiment, referring to fig. 7, a water outlet 30 for communicating with the water discharge pipe 12 is disposed on the sidewall of the cup 3, the lower edge of the water outlet 30 is flush with the bottom 31 of the cup, and the residual water discharge port is located at the bottom of the water outlet 30. The main reason for the residual water is that the diameter of the water outlet 30 is large, and once the water level in the water cup 3 is lower than the height of the water outlet 30, the air is sucked by the water discharge pump 11, and the residual water cannot be discharged. The residual water discharge port is provided at the bottom of the water discharge port 30, and when the residual water cannot be discharged by the air sucked by the drain pump 11, the residual water can be just discharged through the residual water discharge port.

The water tank 18 has two functions, one is to collect the water flowing from the flushing pipe 1C, and the other is to supply the water cup 3 with cleaning water for discharging directly into the water cup 3 when cleaning next time. In order to facilitate the flow of water from the water reservoir 18 into the water cup 3 on the one hand and to avoid the backflow of water from the water cup 3 into the water reservoir 18 on the other hand, in a preferred embodiment the water reservoir 18 is located higher than the water cup 3. When the dishwasher is in the washing mode, the water in the water tank 18 can flow directly into the water cup 3 under the influence of gravity by opening the first valve 19.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dishwasher, comprising an inner container, characterized by further comprising:

the water tank is communicated with the water cup;

the Venturi tube is arranged on the flushing pipeline;

2. A dishwasher according to claim 1, wherein the flush line is further provided with a second valve, the second valve being located between the venturi and the tank.

3. A dishwasher according to claim 2, wherein the flush line is provided with a third valve located between the inlet end of the flush line and the venturi tube.

4. A dishwasher according to claim 3, wherein the second valve is a one-way valve and/or the third valve is a one-way valve.

5. The dishwasher of claim 1, wherein the residual water drain is provided at a bottom of the cup.

6. The dishwasher of claim 5, wherein the cup bottom is inclined toward the residual water discharge port.

7. A dishwasher according to claim 6, wherein the angle of inclination of the cup bottom towards the residual water discharge outlet is between 5 ° and 15 °.

8. The dishwasher of claim 5, wherein the residual water discharge port comprises a plurality of through-holes having a diameter ranging from 1mm to 3 mm.

9. The dishwasher of claim 1, wherein the side wall of the water cup is provided with a drain opening for communication with a drain pipe, a lower edge of the drain opening is flush with a bottom of the water cup, and the residual water drain opening is located at a bottom of the drain opening.

10. The dishwasher of claim 1, wherein the tank is positioned higher than the cup.

11. The dishwasher according to any one of claims 1 to 10, further comprising a water inlet pipe and a water drain pipe and a breather, the water inlet pipe being in communication with the inner tub or the water cup for filling the water cup with water; the water drainage pipe is communicated with the water cup and used for draining water in the water cup, and the respirator is arranged on the water drainage pipe.