CN217772268U

CN217772268U - Dish washing machine

Info

Publication number: CN217772268U
Application number: CN202221115807.6U
Authority: CN
Inventors: 康智坤; 莫建刚; 李国良
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-11-11
Anticipated expiration: 2032-05-10

Abstract

The utility model discloses a dish washing machine relates to dish washing machine technical field. The dishwasher comprises a main drainage system, a washing system and a strong drainage system; the main drainage system comprises a water cup, a drainage pump and a drainage pipe, wherein the drainage pump is installed on the water cup, the drainage pipe is communicated with the water cup, and the drainage pump is used for pumping water in the water cup into the drainage pipe; the washing system is communicated with the water cup and is used for pumping out water introduced into the water cup; the forced drainage system comprises a forced drainage water inlet pipe and a forced drainage water pump, the forced drainage water pump passes through the forced drainage water inlet pipe and the main drainage system and the washing system are communicated respectively, and the forced drainage water pump is used for pumping residual water in the main drainage system and the washing system into the forced drainage water inlet pipe. The utility model discloses technical scheme can solve the problem that has the residual water in the current dish washer easily.

Description

Dish-washing machine

Technical Field

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

Background

The drainage system of the existing dish washing machine generally comprises a water cup, a drainage pump and a drainage pipe, wherein the water circulation pump in the water cup is used for cleaning tableware through a circulation system, the drainage pump is arranged in the water cup and is communicated with the water cup, sewage after the dish washing machine washes each time is collected into the water cup, and the drainage pump drives a drainage impeller to rotate so as to discharge the sewage from the drainage pipe communicated with the water cup.

In order to prevent the impeller from being damaged and the drainage efficiency from being reduced due to the scraping and the collision with the shell of the water cup, a certain gap is reserved between the impeller of the drainage pump and the inner wall of the water cup, so that a part of water still remains in the water cup after the dishwasher drains water. In practical installation and use of the dishwasher, the height of the drain pipe is often higher than that of the bottom wall of the water cup, so that part of water in the drain pipe flows back into the water cup after the drainage pump stops working; the water outlet pipe of the circulating system is higher than the water inlet pipe, so that a part of water residue is left in the circulating system, and when the dish washing machine is inclined downwards due to the influence of external force, the residual water in the dish washing machine flows back to the water cup. The existence of residual water can cause the moisture regain and breed the bacterium, produces the peculiar smell, still can cause the tableware to pollute again, can't realize depositing of tableware, influences user experience.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a dish washing machine, which aims to solve the problem that the existing dish washing machine is easy to have residual water.

In order to achieve the above object, the present invention provides a dishwasher, comprising:

the main drainage system comprises a water cup, a drainage pump and a drainage pipe, wherein the drainage pump is installed on the water cup, the drainage pipe is communicated with the water cup, and the drainage pump is used for pumping water in the water cup into the drainage pipe;

the washing system is communicated with the water cup and is used for pumping out the water introduced into the water cup; and

strong drainage system, strong drainage system includes forced-ventilated inlet tube and forced-ventilated water pump, the forced-ventilated water pump passes through the forced-ventilated inlet tube with main drainage system and washing system realize the intercommunication respectively, the forced-ventilated water pump be used for with residual water pump income in main drainage system and the washing system in the forced-ventilated inlet tube.

In one embodiment, the water cup comprises a main body part and a drainage part which are communicated, the drainage pump is installed in the drainage part, the drainage pipe is communicated with the drainage part, a first strong drainage port is formed in the bottom of the drainage part and/or the bottom of the main body part, and the strong drainage water inlet pipe is communicated with the drainage part and/or the main body part through the first strong drainage port.

In an embodiment, the washing system includes circulating pump and spray arm, be connected with the circulation inlet tube between drinking cup and the circulating pump, be connected with the circulation outlet pipe between circulating pump and the spray arm, the bottom of circulating pump and/or the bottom of circulation inlet tube is equipped with the second and arranges the mouth by force, the inlet tube of arranging by force pass through the second arrange by force mouthful with circulating pump and/or circulation inlet tube are linked together.

In an embodiment, the main drainage system further includes an anti-siphon device, a drainage channel is arranged in the anti-siphon device, the drainage pipe includes an inner drainage pipe and an outer drainage pipe, the inner drainage pipe is used for communicating the drainage channel and the water cup, the outer drainage pipe is communicated with the drainage channel, and water in the water cup sequentially passes through the inner drainage pipe, the drainage channel and the outer drainage pipe.

In one embodiment, a three-way joint is arranged between the inner drain pipe and the water cup, an opening of another joint, which is arranged outside the connection between the three-way joint and the inner drain pipe and the water cup, is arranged downwards and is used as a third strong exhaust port, and the third strong exhaust port is communicated with a water inlet interface of the strong drainage pump through the strong drainage water inlet pipe.

In one embodiment, a check piece is arranged between the third strong exhaust port and the water cup; or

And a flow divider with a relay is arranged between the third forced exhaust port and the water cup.

In an embodiment, a fourth strong discharge port communicated with the drainage channel is arranged at a position, close to the outer drainage pipe, of the anti-siphon device, and a strong drainage pipe is communicated between the fourth strong discharge port and a water outlet interface of the strong drainage pump.

In one embodiment, a fifth strong discharge port is arranged on the outer water discharge pipe, and a strong discharge water pipe is communicated between the fifth strong discharge port and a water outlet interface of the strong discharge pump.

In an embodiment, the number of the water inlet interfaces of the strong drainage pump is not less than 1, and the number of the water outlet interfaces of the strong drainage pump is not less than 1.

In one embodiment, the forced water discharge pump is a vane pump, a diaphragm pump, or a vacuum pump.

The technical scheme of the utility model is that a strong drainage system is added, which comprises a strong drainage pump and a strong drainage water inlet pipe, and the strong drainage pump is respectively communicated with a main drainage system and a washing system through the strong drainage water inlet pipe, wherein the strong drainage pump is used for pumping residual water in the main drainage system and the washing system into the strong drainage water inlet pipe; work as after the drain pump drainage is accomplished, start the forced drainage pump, because the forced drainage pump passes through the forced drainage inlet tube with main drainage system and washing system intercommunication, residual water in main drainage system and the washing system passes through the forced drainage inlet tube is arranged extremely in the forced drainage pump, again by the forced drainage pump arrange extremely outside the dish washer, avoided dish washer breeds the bacterium because of the existence of residual water.

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 view of the dishwasher in FIG. 1 from another perspective;

FIG. 3 is a schematic structural view of the cup of FIG. 1;

FIG. 4 is a schematic view of the anti-siphon device of FIG. 1;

FIG. 5 is a partial cross-sectional view taken at A in FIG. 4;

FIG. 6 is a schematic diagram of the washing system of FIG. 1;

FIG. 7 is a schematic view of the construction of the strong drain pump of FIG. 1;

figure 8 is an exploded view of the tee fitting of figure 1.

The reference numbers illustrate:

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

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly 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 technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The drainage system of the existing dish washing machine generally comprises a water cup, a drainage pump and a drainage pipe, wherein the water circulation pump in the water cup is used for cleaning tableware through a circulation system, the drainage pump is arranged in the water cup and is communicated with the water cup, sewage after the dish washing machine washes each time is collected into the water cup, and the drainage pump drives a drainage impeller to rotate so as to discharge the sewage from the drainage pipe communicated with the water cup. In order to prevent the impeller from being damaged and the drainage efficiency from being reduced due to the scraping and the collision with the shell of the water cup, a certain gap is reserved between the impeller of the drainage pump and the inner wall of the water cup, so that a part of water still remains in the water cup after the dishwasher drains water. In practical installation and use of the dishwasher, the height of the drain pipe is often higher than that of the bottom wall of the water cup, so that part of water in the drain pipe flows back into the water cup after the drainage pump stops working; the water outlet pipe of the circulating system is higher than the water inlet pipe, so that part of water is remained in the circulating system, and when the dishwasher is inclined downwards due to the influence of external force, the remained water in the dishwasher can flow back into the water cup. The existence of residual water can cause the moisture regain and breed the bacterium, produces the peculiar smell, still can cause the tableware to pollute again, can't realize depositing of tableware, influences user experience.

In order to solve the above problem, the utility model provides a dish washing machine.

Referring to fig. 1 and 2, in the present embodiment, the dishwasher 10 includes a main drain system 100, a washing system 200, and a strong drain system 300; the main drainage system 100 comprises a water cup 110, a drainage pump 120 and a drainage pipe 130, wherein the drainage pump 120 is installed on the water cup 110, the drainage pipe 130 is communicated with the water cup 110, and the drainage pump 120 is used for pumping water in the water cup 110 into the drainage pipe 130; the washing system 200 is communicated with the water cup 110 and is used for pumping out the water introduced into the water cup 110; the forced drainage system 300 comprises a forced drainage water inlet pipe 310 and a forced drainage water pump 330, the forced drainage water pump 330 is communicated with the main drainage system 100 and the washing system 200 through the forced drainage water inlet pipe 310, and the forced drainage water pump 330 is used for pumping residual water in the main drainage system 100 and the washing system 200 into the forced drainage water inlet pipe 310.

When the dishwasher 10 is in use, the water cup 110 is circulated by a washing system communicated with the water cup 110, so that the tableware in the dishwasher 10 is washed; after the washing is completed, a part of the residual water not drained to the water cup 110 is left in the washing system 200, the drain pump 120 is started to drain the water in the water cup 110 through the drain pipe 130, and a part of the residual water not drained to the outside of the dishwasher 10 is left in the water cup 110 and/or the drain pipe 130. Through addding strong drainage system 300, work as after drain pump 120 drainage is accomplished, start strong drainage pump 330, because strong drainage pump 330 passes through strong drainage inlet tube 310 with main drainage system 100 and washing system 200 intercommunication, residual water in main drainage system 100 and the washing system 200 passes through strong drainage inlet tube 310 is arranged extremely in strong drainage pump 330, again by strong drainage pump 330 arranges extremely outside dishwasher 10, avoided dishwasher 10 breeds the bacterium because of the existence of residual water.

Referring to fig. 3, in detail, the water cup 110 includes a main body 111 and a drain portion 112 that are communicated with each other, the drain pump 120 is installed in the drain portion 112, and the drain pipe 130 is communicated with the drain portion 112. It can be appreciated that when the dishwasher 10 is not in operation, the residual water flows downward by gravity, and when the bottom of the drain portion 112 is lower than the bottom of the main body portion 111, the residual water is mainly retained in the drain portion 112. At this moment, can the bottom of water discharging part 112 sets up first forced drainage mouth 140, just first forced drainage mouth 140 with forced drainage inlet tube 310 intercommunication, promptly forced drainage inlet tube 310 passes through first forced drainage mouth 140 with water discharging part 112 is linked together, collects residual water in water discharging part 112 can be in under the effect of forced drainage pump 330, through first forced drainage mouth 140 discharges, first forced drainage mouth 140 specifically can set up near the lowest position or the lowest position of water discharging part 112, can discharge residual water as far as possible. And if the bottom of main part 111 is less than during the bottom of water discharging part 112, the residual water mainly remains in the main part 111, then can this moment the bottom of main part 111 sets up first forced drainage mouth 140, and the same reason, first forced drainage mouth 140 with forced drainage inlet tube 310 intercommunication, forced drainage inlet tube 310 passes through first forced drainage mouth 140 with the main part 111 is linked together, collects residual water in the main part 111 can under the effect of forced drainage pump 330, through first forced drainage mouth 140 discharges.

Further, when the bottom of the drain part 112 is lower than the bottom of the main body part 111 and the first strong drain port 140 is provided at the bottom of the drain part 112, if the residual water flowing back from the drain pipe 130 is excessive, the residual water may overflow the drain part 112 and flow into the main body part 111. Therefore, when the first strong exhaust port 140 is arranged at the bottom of the drainage portion 112, another first strong exhaust port 140 may be arranged at the bottom of the main body portion 111, and similarly, this another first strong exhaust port 140 is communicated with the strong exhaust pump 330 through the strong exhaust inlet pipe, and the residual water overflowing into the main body portion 111 may be discharged through the another first strong exhaust port 140 under the effect of the strong exhaust pump 330.

Referring to fig. 6, in detail, the washing system 200 includes a circulation pump 210 and a spray arm, a circulation water inlet pipe 220 is connected between the water cup 110 and the circulation pump 210, and a circulation water outlet pipe 230 is connected between the circulation pump 210 and the spray arm. The bottom of circulating pump 210's pump case is less than during the bottom of circulation inlet tube 220, the residual water mainly stays in the circulating pump 210, at this moment, can the bottom of circulating pump 210's pump case sets up the second and arranges mouth 240 by force, just the second arrange mouth 240 by force with arrange inlet tube 310 intercommunication by force, promptly the inlet tube 310 by force passes through the second arrange mouth 240 by force with circulating pump 210 is linked together, collects residual water in the circulating pump 210 can under the effect of forced-ventilated water pump 330, through the second arranges mouth 240 by force and discharges, the second is arranged mouth 240 by force specifically can set up near the lowest position or the lowest position of circulating pump 210's pump case, can discharge the residual water as far as possible. And if the bottom of circulation inlet tube 220 is less than during the bottom of the pump case of circulating pump 210, the residual water can flow backwards extremely in the circulation inlet tube 220, then can this moment the bottom of circulation inlet tube 220 sets up the mouth 240 is arranged by force to the second, and on the same hand, the mouth 240 is arranged by force to the second with the inlet tube 310 intercommunication is arranged by force, the inlet tube 310 that arranges by force passes through the mouth 240 is arranged by force to the second with circulation inlet tube 220 is linked together, collects residual water in the circulation inlet tube 220 can under the effect of the pump 330 that discharges by force, through the mouth 240 discharges by force to the second.

Further, when the bottom of the pump case of the circulation pump 210 is lower than the bottom of the circulation water inlet pipe 220 and the bottom of the pump case of the circulation pump 210 is provided with the second forced drainage port 240, if the residual water in the circulation pump 210 is too much, the residual water may overflow the circulation pump 210 and flow into the circulation water inlet pipe 220. Therefore, the bottom of the pump case of the circulating pump 210 is provided with the second forced-ventilated opening 240, and simultaneously, the bottom of the circulating water inlet pipe 220 is provided with another second forced-ventilated opening 240, and similarly, the another second forced-ventilated opening 240 is communicated with the forced-ventilated water pump 330 through the forced-ventilated water inlet pipe, and overflows to the residual water in the circulating water inlet pipe 220 can be discharged through the another second forced-ventilated opening 240 under the effect of the forced-ventilated water pump 330.

The washing system 200 may further include a heating device that heats water flowing through the washing system 200 to achieve better cleaning of the dishes in the dishwasher 10. Specifically, the heating device may be a heating module disposed in the circulation pump 210, so that the circulation pump 210 can heat water while circulating water.

Referring to fig. 4 and 5, after the washing of the dishwasher 10 is completed, the drain pump 120 drains the washed waste water in the water cup 110 through the drain pipe 130, and the drain pipe 130 may generate a backflow when directly draining the waste water, so that the water flow generates a siphon phenomenon to suck the waste water back into the water cup 110 again. In view of this, in an embodiment, the main drainage system 100 further includes an anti-siphon device 150, a drainage channel 151 is disposed in the anti-siphon device 150, the drainage pipe 130 includes an inner drainage pipe 131 and an outer drainage pipe 132, the inner drainage pipe 131 is used for communicating the drainage channel 151 with the water cup 110, the outer drainage pipe 132 is communicated with the drainage channel 151, and the water in the water cup 110 sequentially passes through the inner drainage pipe 131, the drainage channel 151 and the outer drainage pipe 132. That is, the water in the water cup 110 is discharged into the drainage passage through the inner drainage pipe 131 under the action of the drainage pump 120, and then is discharged out of the dishwasher 10 through the outer drainage pipe 132 communicated with the drainage channel 151, and the height of the sewage discharge port is reduced by the outer drainage pipe 132, so that the siphon phenomenon existing when the sewage is directly discharged through the drainage pipe 130 is avoided.

As can be seen from the above, after the waste water is drained from the dishwasher 10, a part of the residual water is stored in the drain pipe 130 and flows back to the water cup 110 again. Considering that the amount of the residual water in the inner drain pipe 131 decreases after the residual water flows back for a period of time, a part of the residual water adheres to the inner wall of the inner drain pipe 131 and cannot completely flow back into the water cup 110. Therefore, it is preferred, the bottom of interior drain pipe 131 is equipped with third forced-ventilated mouth 162, just the third forced-ventilated mouth 162 with forced-ventilated inlet tube 310 communicates, promptly forced-ventilated inlet tube 310 passes through third forced-ventilated mouth 162 with interior drain pipe 131 is linked together, collects residual water in the interior drain pipe 131 can under the effect of forced-ventilated water pump 330, through the discharge of third forced-ventilated mouth 162.

Referring to fig. 1 and 8, in particular, in an embodiment, a three-way joint 160 is disposed between the inner water drainage pipe 131 and the water cup 110, an opening of another joint of the three-way joint 160, which is not connected to the inner water drainage pipe 131 and the water cup 110, is disposed downward and serves as a third strong exhaust port 162, and the third strong exhaust port 162 is communicated with the water inlet port 331 of the strong water drainage pump 330 through the strong water drainage water inlet pipe 310.

Referring to fig. 8, further, in order to prevent the sewage from flowing back into the water cup 110 when the inner drainage pipe 131 discharges the sewage, a check member 161 is disposed between the third strong discharge port 162 and the water cup 110, and the check member 161 is used for limiting a flow direction of a water path in the inner drainage pipe 131 and preventing the water in the inner drainage pipe 131 from flowing back into the water cup 110. Specifically, the check member 161 includes a check piece 161a and an installation tube 161b, the installation tube 161b is coaxially installed in the three-way joint 160 and is located between the third forced drainage port 162 and the water cup 110, the check piece 161a is rotatably installed at one end of the installation tube 161b close to the third forced drainage port 162 and is blocked by the end of the installation tube 161b, and the check piece 161a can only rotate towards the direction far away from the installation tube 161 b. That is, when water flows from the cup 110 to the anti-siphon device 150, the check piece 161a rotates and opens under the impact of the water flow, the mounting pipe 161b is in a circulating state, when the water flows from the anti-siphon device 150 to the cup 110, the check piece 161a abuts against the end of the mounting pipe 161b under the impact of the water flow, and the mounting pipe 161b is in a blocking state and limits the water flow to the cup 110. When the residual water is limited in the internal drainage pipe 131, the residual water can be discharged through the third strong discharge port 162 by the strong discharge pump 330.

Unlike the previous embodiment, in addition to the check member 161 for limiting the flow of water in the inner drain pipe 131, a flow divider with a relay or other similar functional device may be provided between the third strong exhaust port 162 and the cup 110.

Strong drainage pump 330 has into water interface 331 and outlet interface 332, wherein, strong inlet tube 310 intercommunication strong drainage pump 330's the interface 331 of intaking and first strong mouth 140, the second of arranging, the third is arranged mouth 240 by force, it is corresponding, outlet interface 332 intercommunication has the outlet pipe of discharging by force, strong drainage pump 330 passes through strong drainage inlet tube 310 discharges behind the residual water in main drainage system 100 and the washing system 200, again by strong drainage pipe 320 discharges the residual water outside dishwasher 10.

Referring to fig. 1 and 5, in an embodiment, the anti-siphon device 150 is provided with a fourth strong discharge port 152 near the outer discharge pipe 132 and communicated with the drainage channel 151, and a strong discharge pipe 320 is communicated between the fourth strong discharge port 152 and a water outlet interface 332 of the strong discharge pump 330. That is, the residual water collected by the forced drainage pump 330 is not directly discharged through the forced drainage pipe 320, but is discharged into the drainage channel 151 through the forced drainage pipe 320, and then is discharged out of the dishwasher 10 through the outer drainage pipe 132. Utilize outer drain pipe 132 can avoid discharging residual water outside dishwasher 10 forced drainpipe 320 takes place siphon phenomenon, can reduce simultaneously the setting of the outside delivery port of dishwasher 10, the unified setting of the outside drainage of being convenient for.

Different from the foregoing embodiment, in an embodiment, a fifth strong exhaust port is provided on the outer water discharge pipe 132, and a strong exhaust water discharge pipe 320 is communicated between the fifth strong exhaust port and an outlet interface 332 of the strong exhaust water pump 330. That is, the residual water collected by the forced drainage pump 330 is not directly discharged from the forced drainage pipe 320, but is discharged into the outer drainage pipe 132 through the forced drainage pipe 320, and then is discharged out of the dishwasher 10 through the outer drainage pipe 132. In the same way, the strong drainage pipe 320 can be prevented from siphoning, and the arrangement of the external water outlet of the dishwasher 10 can be reduced, so that the external drainage can be uniformly arranged.

Referring to fig. 7, as can be seen from the above description, the main drainage system 100 and the washing system 200 are both provided with forced-ventilated ports, that is, the number of the forced-ventilated water inlet pipes 310 is multiple, at this time, the number of the water inlet ports 331 of the forced-ventilated water pump 330 can be 1, and the multiple forced-ventilated water inlet pipes 310 are communicated with the same water inlet port 331 of the forced-ventilated water pump 330; the number of the water inlet ports 331 of the strong water drainage pump 330 may also be multiple, the number of the water inlet ports 331 of the strong water drainage pump 330 corresponds to the number of the strong water drainage inlet pipes 310, and each of the strong water drainage inlet pipes 310 is communicated with different water inlet ports 331 of the strong water drainage pump 330. Similarly, the number of the water outlet ports 332 of the forced drainage pump 330 may be 1, or may be multiple, and the water outlet ports are respectively connected to the different forced drainage pipes 320.

After the main drainage system 100 and the washing system 200 are communicated with the forced drainage system 300, the forced drainage system 300 discharges the residual water in the main drainage system 100 and the washing system 200 in sequence without limitation, the residual water in the main drainage system 100 can be discharged firstly, the residual water in the washing system 200 can also be discharged firstly, and the residual water in the main drainage system 100 and the washing system 200 can also be discharged simultaneously.

Specific types of the strong drain pump 330 include, but are not limited to, vane pumps, diaphragm pumps, vacuum pumps, and other similar functional drain pumps.

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

Claims

1. A dishwasher, comprising a main drainage system including a water cup, a drainage pump and a drainage pipe, the drainage pump being mounted to the water cup, the drainage pipe being in communication with the water cup, the drainage pump being for pumping water in the water cup into the drainage pipe, the dishwasher further comprising:

the washing system is communicated with the water cup and is used for pumping out water introduced into the water cup; and

2. The dishwasher according to claim 1, wherein the water cup comprises a main body part and a drainage part which are communicated, the drainage pump is installed in the drainage part, the drainage pipe is communicated with the drainage part, the bottom of the drainage part and/or the bottom of the main body part is provided with a first strong drainage port, and the strong drainage water inlet pipe is communicated with the drainage part and/or the main body part through the first strong drainage port.

3. The dishwasher according to claim 1, wherein the washing system comprises a circulating pump and a spray arm, a circulating water inlet pipe is connected between the water cup and the circulating pump, a circulating water outlet pipe is connected between the circulating pump and the spray arm, a second strong discharge port is arranged at the bottom of a pump shell of the circulating pump and/or the bottom of the circulating water inlet pipe, and the strong discharge water inlet pipe is communicated with the circulating pump and/or the circulating water inlet pipe through the second strong discharge port.

4. The dishwasher according to any one of claims 1 to 3, wherein the main drainage system further comprises an anti-siphon device, a drainage channel is arranged in the anti-siphon device, the drainage pipe comprises an inner drainage pipe and an outer drainage pipe, the inner drainage pipe is used for communicating the drainage channel and the water cup, the outer drainage pipe is communicated with the drainage channel, and water in the water cup sequentially passes through the inner drainage pipe, the drainage channel and the outer drainage pipe.

5. The dishwasher according to claim 4, wherein a three-way joint is arranged between the inner drain pipe and the water cup, the opening of the other joint except for the connection between the three-way joint and the inner drain pipe and the water cup is arranged downwards and is used as a third strong exhaust port, and the third strong exhaust port is communicated with the water inlet interface of the strong exhaust pump through the strong exhaust water inlet pipe.

6. The dishwasher of claim 5, wherein a check member is provided between the third forced discharge port and the water cup; or

7. The dishwasher of claim 4, wherein the anti-siphon device is provided with a fourth strong discharge port communicated with the water discharge channel at a position close to the outer water discharge pipe, and a strong discharge water pipe is communicated between the fourth strong discharge port and a water outlet interface of the strong discharge water pump.

8. The dishwasher of claim 4, wherein the outer water discharge pipe is provided with a fifth strong discharge port, and a strong discharge water discharge pipe is communicated between the fifth strong discharge port and a water outlet interface of the strong discharge pump.

9. The dishwasher of claim 1, wherein the number of water inlet ports of the strong drainage pump is not less than 1, and the number of water outlet ports of the strong drainage pump is not less than 1.

10. The dishwasher of claim 1, wherein the strong draft pump is a vane pump, a diaphragm pump, or a vacuum pump.