CN114652252A

CN114652252A - Cleaning machine and cleaning method thereof

Info

Publication number: CN114652252A
Application number: CN202210185859.9A
Authority: CN
Inventors: 谢明佐
Original assignee: Ningbo Intelligent Technology Research Institute Co ltd
Current assignee: Ningbo Kitchen Whale Technology Co.,Ltd.
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-06-24

Abstract

The invention provides a cleaning machine and a cleaning method thereof, and belongs to the technical field of cleaning machines. The cleaning machine solves the problem that the existing cleaning machine can not rapidly remove stains or food residues with strong adhesion. The cleaning machine and the cleaning method thereof comprise a machine shell, a left spray arm, a right spray arm, a spray assembly, a water control system, a water purification tank and a steam assembly. In the cleaning machine, the steam component is controlled to spray steam into the machine shell, so that stains or food residues on tableware are softened by the steam, and then the water control system is controlled to spray water to one of the left spray arm, the right spray arm and the spray component or control the left spray arm and the right spray arm to spray water simultaneously or control the left spray arm, the right spray arm and the spray component to spray water simultaneously, so that the softened stains or food residues can be smoothly washed off, and the cleaning effect on the tableware is effectively improved.

Description

Cleaning machine and cleaning method thereof

Technical Field

The invention belongs to the technical field of cleaning machines, and relates to a cleaning machine and a cleaning method thereof.

Background

With the development of social economy and the improvement of the living standard of families, more and more families use dish washers to clean tableware after meals so as to relieve the intensity of the labor of the families.

In China, most of dishwashers used in households are table dishwashers, however, the existing table dishwashers have the following problems:

1. the existing dish washing machine can only clean tableware by water sprayed by a spray arm, and the scheme can only be used for removing some stains or food residues with poor adhesion;

2. most of the existing dish washers need to be provided with a water inlet pipeline and also have a water tank partially integrated in the dish washing, and for the dish washers, when the tableware is washed, water is often added into the water tank for multiple times to wash the tableware; moreover, such dishwashers tend to occupy large areas and are difficult to transport;

3. the spraying arm of the existing dish washing machine can only wash and wash a fixed area, and the washing force is single, so that the effect of efficiently cleaning tableware cannot be achieved.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a cleaning machine capable of quickly removing dirt or food residues and a cleaning method thereof.

The purpose of the invention can be realized by the following technical scheme: a cleaning machine comprising:

the spraying device comprises a shell, a left spraying arm and a right spraying arm are movably arranged at the bottom end of the interior of the shell, and a spraying assembly is movably arranged at the top end of the interior of the shell;

the water control system is arranged on the bottom surface of the shell and can be used for controlling one of the left spray arm, the right spray arm and the spray assembly to spray water or controlling the left spray arm and the right spray arm to spray water simultaneously or controlling the left spray arm, the right spray arm and the spray assembly to spray water simultaneously;

the water purifying tank is communicated with the water control system, the water purifying tank is further connected with a steam assembly, and the steam assembly can be communicated with the spraying assembly or communicated with one side wall of the shell.

In an above-mentioned cleaning machine, the accuse water system includes the junction pipe, one of junction pipe is served and is connected with the left pipeline that communicates with left spray arm, be connected with the right pipeline that communicates with right spray arm on the other end of junction pipe, the intercommunication has the spray pipe way with spray assembly intercommunication on the junction pipe, be connected with the circulating pump on the junction pipe, pass through the fifth pipeline intercommunication between circulating pump and the junction pipe.

In the cleaning machine, the left pipeline is provided with the left valve body, the right pipeline is provided with the right valve body, and the spraying pipeline is provided with the spraying valve body.

In foretell cleaning machine, the bottom undercut of casing forms the aqua storage tank, through the fourth pipeline intercommunication between the bottom of aqua storage tank and the circulating pump, aqua storage tank department is equipped with level sensor and temperature sensor, the bottom of aqua storage tank is equipped with the heater.

In the cleaning machine, a sixth pipeline is connected to the circulating pump, a sewage tank is communicated with one end, away from the circulating pump, of the sixth pipeline, and a drain valve is arranged on the sixth pipeline.

In the above cleaning machine, the clean water tank is communicated with a first pipeline, the first pipeline is provided with a second pipeline communicated with the side wall of the water storage tank, and the second pipeline is provided with a first pump body.

In a cleaning machine of the aforesaid, steam subassembly includes the third pipeline with first pipeline intercommunication, be equipped with the second pump body and steam generator on the third pipeline, the one end that the first pipeline was kept away from to the third pipeline is connected through the three-way valve or the one end that the first pipeline was kept away from to the third pipeline is communicated with a lateral wall of casing between the pipeline and the spraying pipeline.

In a foretell cleaning machine, the spray assembly is including the swing arm that sprays that the activity was located the casing top, one side of casing is equipped with and is used for the drive to spray swing arm pivoted motor, the one end of spraying the swing arm is equipped with the swing arm pipeline, this swing arm pipeline with the three-way valve intercommunication or with spray the pipeline intercommunication.

A method of cleaning a cleaning machine comprising:

step S1, conveying the water in the water purifying tank into the water storage tank, and heating the water in the water storage tank by the heater in the process;

step S2, opening the left valve body and the right valve body, and opening the circulating pump to make the left spray arm and the right spray arm simultaneously carry out primary cleaning on the tableware in the machine shell;

step S3, after the water purification tank is cleaned for a certain time, the left valve body, the right valve body and the circulating pump are closed, the steam generator and the second pump body are opened, water in the water purification tank can be pumped into the steam generator, and liquid water is converted into steam through the steam generator and then is introduced into the machine shell;

step S4, after the water vapor is introduced into the casing for a certain time, closing the steam generator and the second pump body, starting the circulating pump, and starting the left valve body or the right valve body or the spraying valve body or the left valve body and the right valve body or the left valve body, the right valve body and the spraying valve body;

step S5, after a certain time, closing the left valve body, the right valve body and the spraying valve body, opening the drain valve, and discharging the water in the water storage tank into the sewage tank by sequentially passing through the fourth pipeline, the circulating pump and the sixth pipeline;

step S6, repeat step S1 to step S5 once again.

In the above cleaning method of the cleaning machine, in the process of step S3, when the third pipeline, the spraying pipeline and the swing arm pipeline are connected by the three-way valve, the steam is introduced into the casing through the spraying swing arm and the spraying swing arm rotates at this time, and when the third pipeline is communicated with the side wall of the casing, the steam is introduced from the side wall of the casing and the spraying swing arm does not rotate at this time.

Compared with the prior art, the invention has the following beneficial effects:

1. in the cleaning machine, the steam component is controlled to spray steam into the machine shell, so that stains or food residues on tableware are softened by the steam, and then the water control system is controlled to spray water to one of the left spray arm, the right spray arm and the spray component or control the left spray arm and the right spray arm to spray water simultaneously or control the left spray arm, the right spray arm and the spray component to spray water simultaneously, so that the softened stains or food residues can be smoothly washed off, and the cleaning effect on the tableware is effectively improved.

2. At the in-process of spraying steam, when communicating steam subassembly and spray assembly, steam just can spray to the casing in through spray assembly, and at this in-process, spray assembly can rotate at the casing, so, alright spray steam to each inside corner of casing for spot and food waste on the tableware can be fully softened by steam, so that spot and food waste can be washed away smoothly by water.

3. When the steam component is communicated with one side wall of the machine shell in the process of spraying steam, the distance between one end of the steam component for generating steam and the tableware is smaller than the distance between the spraying component and the tableware, so that the loss of steam heat is reduced, and the softening speed of stains or food residues on the tableware is accelerated.

4. The bottom of casing is equipped with the guiding gutter, guiding gutter and aqua storage tank intercommunication, left side spray arm all passes the guiding gutter with right spray arm, and when the cleaning machine washd the tableware, the water that is located chassis bottom will remove to the aqua storage tank direction through the guiding gutter to the convenience is discharged sewage.

5. By the cleaning method of the cleaning machine, residual stains or food residues on the tableware are effectively removed, and the effect of efficiently cleaning the tableware is achieved.

6. In the cleaning process, one of the left spray arm, the right spray arm and the spray assembly is selected to spray water, so that the water coming out of the circulating pump is completely concentrated at one position, the sprayed water pressure can be effectively improved, the impact force is improved, and the cleaning capacity is improved.

7. In the cleaning process, the spraying swing arm can rotate in the water spraying process, so that dynamic sweeping spraying can be realized, and the cleaning capability of the cleaning machine is effectively improved.

8. This water purification case is external stand alone type, when the installation, pegs graft through the quick between first pipeline and the water purification case, alright with accuse water system and water purification case intercommunication, realize the modularization installation of this cleaning machine, secondly, with the cleaning machine after decomposing, also portable.

Drawings

FIG. 1 is a system schematic of a washer having a steam assembly in communication with a spray assembly in accordance with the present invention.

Fig. 2 is a schematic structural diagram of the cleaning machine after the steam assembly is communicated with the spray assembly.

Fig. 3 is a schematic view of the internal structure of the washer.

FIG. 4 is a schematic view of a cleaning machine with a steam assembly in communication with a side wall of the cabinet according to the present invention.

FIG. 5 is a system diagram of a washer with a steam assembly in communication with a side wall of a cabinet according to the present invention.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 to 5, a washing machine of the present embodiment includes a cabinet 100, a left spray arm 110, a right spray arm 120, a spray assembly 130, a water control system 200, a fresh water tank 300, and a steam assembly 400.

The bottom end of the interior of the cabinet 100 is movably provided with a left spray arm 110 and a right spray arm 120, the top end of the interior of the cabinet 100 is movably provided with a spray assembly 130, a water control system 200 is arranged on the bottom surface of the cabinet 100, the water control system 200 can be used for controlling one of the left spray arm 110, the right spray arm 120 and the spray assembly 130 to spray water or controlling the left spray arm 110 and the right spray arm 120 to spray water or controlling the left spray arm 110, the right spray arm 120 and the spray assembly 130 to spray water simultaneously, the water purification tank 300 is communicated with the water control system 200, the water purification tank 300 is further connected with a steam assembly 400, when tableware is washed, people need to put the tableware into the cabinet 100, and make the left spray arm 110, the right spray arm 120 and the spray assembly 130 not contact with the tableware, then people convey the water in the water purification tank 300 to the bottom of the cabinet 100, and then people control the water control system 200, the left spray arm 110 and the right spray arm 120 are enabled to simultaneously wash the tableware in the casing 100 for a first time, after washing for a certain time, the water control system 200 controls the left spray arm 110 and the right spray arm 120 to stop spraying water, at the same time, the steam assembly 400 is controlled to spray steam into the casing 100, so that stains or food residues on the tableware are softened by the steam, then, the water control system 200 is controlled again, so that one of the left spray arm 110, the right spray arm 120 and the spray assembly 130 sprays water, or the left spray arm 110 and the right spray arm 120 spray water, or the left spray arm 110, the right spray arm 120 and the spray assembly 130 spray water, so that the tableware in the casing 100 can be washed once, then, the water control system 200 is controlled to discharge the sewage in the casing 100, then, the steps are repeated, and the tableware in the casing 100 is washed once again, and thus, the dirt and food residues on the tableware can be cleaned, and the effect of efficiently cleaning the tableware is achieved.

Further, the steam assembly 400 may be in communication with the spray assembly 130 or in communication with a sidewall of the cabinet 100, and during the process of spraying steam, when the steam assembly 400 is in communication with the spray assembly 130, the steam may be sprayed into the cabinet 100 through the spray assembly 130, and during the process, the spray assembly 130 may rotate in the cabinet 100, so that the steam may be sprayed to each corner of the interior of the cabinet 100, so that the stains and food residues on the tableware may be sufficiently softened by the steam, and the stains and food residues may be smoothly washed away by the water; when the steam assembly 400 is communicated with a sidewall of the cabinet 100, a distance between an end of the steam assembly 400 generating steam and dishes is smaller than a distance between the shower assembly 130 and the dishes, so that loss of heat of the steam is reduced to accelerate softening of stains or food residues on the dishes.

The water control system 200 comprises an intersection pipe 210, one end of the intersection pipe 210 is connected with a left pipeline 220 communicated with the left spray arm 110, the other end of the intersection pipe 210 is connected with a right pipeline 230 communicated with the right spray arm 120, the intersection pipe 210 is communicated with a spray pipeline 240 communicated with the spray assembly 130, the intersection pipe 210 is connected with a circulating pump 250, the circulating pump 250 is communicated with the intersection pipe 210 through a fifth pipeline 253, the left pipeline 220 is provided with a left valve body 221, the right pipeline 230 is provided with a right valve body 231, the spray pipeline 240 is provided with a spray valve body 241, the bottom of the casing 100 is recessed downwards to form a water storage tank 140, the bottom of the water storage tank 140 is communicated with the circulating pump 250 through a fourth pipeline 251, when tableware is cleaned, a user only needs to open the circulating pump 250 to pump water stored in the water storage tank 140 into the intersection pipe 210, and then, when a person opens the left valve body 221, water in the junction pipe 210 passes through the junction pipe 210, the left valve body 221 and the left spray arm 110 in sequence, and is sprayed into the case 100 through the left spray arm 110, so that tableware on one side of the left spray arm 110 can be washed clean, when a person opens the right valve body 231, water in the junction pipe 210 passes through the junction pipe 210, the right valve body 231 and the right spray arm 120 in sequence, and is sprayed into the case 100 through the right spray arm 120, so that tableware on one side of the right spray arm 120 can be washed clean, when a person opens the spray valve body 241, water in the junction pipe 210 passes through the junction pipe 210, the spray valve body 241 and the spray assembly 130 in sequence, and is sprayed into the case 100 through the spray assembly 130, during the process, the spray assembly 130 rotates in the case 100, and thus, all corners of the case 100 can be sprayed with water, so that the dishes in the cabinet 100 can all be sprayed by water, thereby allowing the dishes in the cabinet 100 to be washed clean.

The circulating pump 250 is connected with a sixth pipeline 252, one end of the sixth pipeline 252, which is far away from the circulating pump 250, is communicated with a sewage tank 252a, a drain valve 252b is arranged on the sixth pipeline 252, after the washing machine finishes washing tableware, people need to close the left valve body 221, the right valve body 231 and the spraying valve body 241, the circulating pump 250 is continuously opened, and the drain valve 252b is opened, so that sewage in the water storage tank 140 passes through the fourth pipeline 251, the circulating pump 250 and the sixth pipeline 252, and the sewage is discharged into the sewage tank 252a through the sixth pipeline 252, and after the sewage is discharged, the circulating pump 250 and the drain valve 252b are closed.

Further, a filter screen (not labeled in the figure) is arranged at the fourth pipeline 251 of the water storage tank 140, and by the arrangement of the filter screen, food particles with large volume cannot enter the fourth pipeline 251, so that the fourth pipeline 251 or the sixth pipeline 252 is prevented from being blocked when sewage is discharged, and the circulating pump 250 is also prevented from being damaged.

The water purifying tank 300 is communicated with a first pipeline 310, the first pipeline 310 is provided with a second pipeline 311 communicated with the side wall of the water storage tank 140, the second pipeline 311 is provided with a first pump body 311a, the water storage tank 140 is provided with a water level sensor 141, wherein the water level sensor 141 is electrically connected with the first pump body 311a, when water is added into the water storage tank 140, the water level sensor 141 constantly detects the height of the water level in the water storage tank 140, and when the water level in the water storage tank 140 reaches the preset value of the water level sensor 141, the water level sensor 141 transmits the signal to the first pump body 311a, the first pump body 311a stops working, so that the water stored in the water storage tank 140 is always kept at a certain volume, and thus, the using amount of the water by the cleaning machine can be controlled.

The cabinet 100 is provided with a temperature sensor 142 at the water storage tank 140, a heater 143 is provided at the bottom of the water storage tank 140, when people introduce water in the purified water tank 300 into the water storage tank 140, the heater 143 heats the water in the water storage tank 140, and in the process, the temperature sensor 142 detects the temperature of the water in the water storage tank 140 at any time, and when the temperature of the water in the water storage tank 140 reaches the preset temperature of the temperature sensor 142, the heater 143 stops heating, so that the temperature of the water in the water storage tank 140 is always maintained at a constant temperature.

The steam assembly 400 comprises a third pipeline 410 communicated with the first pipeline 310, the third pipeline 410 is provided with a second pump body 420 and a steam generator 430, when steam is to be generated, one needs to open the second pump body 420 and the steam generator 430, so that the second pump body 420 pumps the water in the clean water tank 300 into the steam generator 430, and the steam generator 430 converts the liquid water into steam; the end of the third pipeline 410 away from the first pipeline 310 is connected to the spray pipeline 240 through the three-way valve 260 or the end of the third pipeline 410 away from the first pipeline 310 is communicated with a side wall of the cabinet 100.

The spraying assembly 130 comprises a spraying swing arm 131 movably arranged at the top of the casing 100, a motor 132 for driving the spraying swing arm 131 to rotate is arranged at one side of the casing 100, a swing arm pipeline 133 is arranged at one end of the spraying swing arm 131, the swing arm line 133 is in communication with a three-way valve 260, or alternatively in communication with a spray line 240, which, when installed, the connection between the steam assembly 400 and the shower assembly 130 can be realized by connecting one end of the third pipe 410 far away from the first pipe 310, the swing arm pipe 133 and the shower pipe 240 through the three-way valve 260, so that when the steam generator 430 generates steam, the steam can be smoothly sprayed into the casing 100 through the spraying swing arm 131, and in this process, the motor 132 will drive the spraying swing arm 131 to rotate, so that the steam sprayed from the spray swing arm 131 can cover all corners of the inside of the whole cabinet 100, so that all dishes in the cabinet 100 can be covered and softened by the steam; when the end of the third pipe 410 away from the first pipe 310 is communicated with a sidewall of the cabinet 100, the swing arm pipe 133 is communicated with only the shower pipe 240, so that the steam generated by the steam generator 430 can be smoothly sprayed into the cabinet 100 through the sidewall of the cabinet 100.

As shown in fig. 3, a diversion trench 150 is disposed at the bottom of the casing 100, the diversion trench 150 is communicated with the water storage tank 140, the left spray arm 110 and the right spray arm 120 both pass through the diversion trench 150, and when the washing machine washes dishes, water at the bottom of the casing 100 will move towards the water storage tank 140 through the diversion trench 150, so as to conveniently discharge sewage.

Further, at the in-process of washing tableware, when water drops from the tableware, this water is by the effect of gravity, can be retrieved again in the aqua storage tank or return to in the aqua storage tank through the guiding gutter, and the abluent process of tableware has not ended yet at this moment, make the water of being retrieved just can be used for washing tableware again by the circulating pump extraction, the used repeatedly of water resource has been embodied to this place, and the circulating pump is at the in-process of suction, food waste and debris can be blockked by the filter screen, avoid when the reuse water resource, the great food granule of volume enters into in the fourth pipeline 251.

Example two

As shown in fig. 1 to 5, the present embodiment is a cleaning method of a cleaning machine, including:

step S1, placing the dishes into the housing 100, and making the left spray arm 110, the right spray arm 120 and the spray assembly 130 not contact with the dishes, then, opening the first pump 311a, so as to transport the water in the clean water tank 300 to the water storage tank 140 through the first pipe 310 and the second pipe 311, and when the water level in the water storage tank 140 reaches the preset value of the water level sensor 141, the first pump 311a is closed, and during this process, the heater 143 heats the water in the water storage tank 140, and when the water temperature in the water storage tank 140 reaches the preset value of the temperature sensor 142, the heater 143 stops heating;

step S2, the left valve body 221 and the right valve body 231 are opened, and the circulation pump 250 is opened, so that the water in the water storage tank 140 can be pumped to the left spray arm 110 and the right spray arm 120, and the left spray arm 110 and the right spray arm 120 can simultaneously perform the primary cleaning on the dishware in the cabinet 100;

step S3, after the water is washed for a certain time, the left valve 221, the right valve 231 and the circulation pump 250 are closed, the steam generator 430 and the second pump body 420 are opened, the second pump body 420 can pump the water in the purified water tank 300 into the steam generator 430, and then the steam generator 430 converts the liquid water into steam and introduces the steam into the casing 100, and when the steam encounters the dirt or food residue on the tableware, the dirt or food residue is softened by the steam;

step S4, after the water vapor is introduced into the casing 100 for a certain time, the steam generator 430 and the second pump body 420 are closed, the circulation pump 250 is started, and according to the requirement, the left valve body 221 or the right valve body 231 or the spray valve body 241 or the left valve body 221 and the right valve body 231 or the left valve body 221, the right valve body 231 and the spray valve body 241 are correspondingly opened, so that one of the left spray arm 110, the right spray arm 120 and the spray assembly 130 sprays water or the left spray arm 110 and the right spray arm 120 spray water simultaneously or the left spray arm 110, the right spray arm 120 and the spray assembly 130 spray water simultaneously, so that the softened dirt or food residues are washed away;

step S5, after the tableware is washed for a certain time, the left valve body 221, the right valve body 231 and the spray valve body 241 are closed, the drain valve 252b is opened, and the water in the water storage tank 140 can pass through the fourth pipeline 251, the circulating pump 250 and the sixth pipeline 252 in sequence, and is discharged to the sewage tank 252 a;

step S6, repeating step S1 to step S5 again, so as to effectively improve the effect of the washing machine on cleaning the dishes.

Further, in the process of step S3, when the third pipeline 410, the spraying pipeline 240 and the swing arm pipeline 133 are connected by the three-way valve, the steam is introduced into the cabinet through the spraying swing arm and the spraying swing arm 131 rotates at this time, so that the steam sprayed from the spraying swing arm 131 can cover all corners inside the whole cabinet 100, and all the dishes in the cabinet 100 can be covered and softened by the steam; when the end of the third pipe 410 away from the first pipe 310 is communicated with a side wall of the cabinet 100, the swing arm pipe 133 is only communicated with the shower pipe 240, so that the steam generated by the steam generator 430 can be smoothly sprayed into the cabinet 100 through the side wall of the cabinet 100 without rotating the shower swing arm 131.

By the cleaning method of the cleaning machine, residual stains or food residues on the tableware can be effectively removed, and the effect of efficiently cleaning the tableware is achieved.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention 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, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Claims

1. A cleaning machine, comprising:

2. The cleaning machine of claim 1, wherein the water control system comprises an intersection pipe, one end of the intersection pipe is connected with a left pipeline communicated with the left spray arm, the other end of the intersection pipe is connected with a right pipeline communicated with the right spray arm, the intersection pipe is communicated with a spray pipeline communicated with the spray assembly, the intersection pipe is connected with a circulating pump, and the circulating pump is communicated with the intersection pipe through a fifth pipeline.

3. The cleaning machine of claim 2, wherein a left valve body is arranged on the left pipeline, a right valve body is arranged on the right pipeline, and a spray valve body is arranged on the spray pipeline.

4. The cleaning machine as claimed in claim 2, wherein the bottom of the casing is recessed downward to form a water storage tank, the bottom of the water storage tank is communicated with the circulating pump through a fourth pipeline, a water level sensor and a temperature sensor are arranged at the water storage tank, and a heater is arranged at the bottom of the water storage tank.

5. The cleaning machine according to claim 2, wherein a sixth pipeline is connected to the circulating pump, a sewage tank is communicated with one end of the sixth pipeline, which is far away from the circulating pump, and a drain valve is arranged on the sixth pipeline.

6. The cleaning machine of claim 4 wherein said clean water tank is connected to a first conduit, said first conduit having a second conduit connected to said reservoir side wall, said second conduit having a first pump.

7. The cleaning machine of claim 6, wherein the steam assembly comprises a third pipeline communicated with the first pipeline, the third pipeline is provided with a second pump body and a steam generator, one end of the third pipeline far away from the first pipeline is connected with the spraying pipeline through a three-way valve, or one end of the third pipeline far away from the first pipeline is communicated with one side wall of the casing.

8. The cleaning machine of claim 7, wherein the spray assembly comprises a spray swing arm movably disposed at a top of the housing, a motor for driving the spray swing arm to rotate is disposed at one side of the housing, and a swing arm pipeline is disposed at one end of the spray swing arm and is communicated with the three-way valve or the spray pipeline.

9. A method of cleaning a cleaning machine, comprising:

step S2, opening the left valve body and the right valve body, and opening the circulating pump to make the left spray arm and the right spray arm simultaneously carry out preliminary cleaning on the dishes in the machine shell;

step S3, after cleaning for a certain time, closing the left valve body, the right valve body and the circulating pump, and opening the steam generator and the second pump body, so that water in the purified water tank can be pumped into the steam generator, and liquid water is converted into steam through the steam generator and then is introduced into the shell;

step S6, repeat step S1 to step S5 once again.

10. The cleaning method of claim 9, wherein in the step S3, when the third pipeline, the spraying pipeline and the swing arm pipeline are connected by a three-way valve, the steam is introduced into the casing through the spraying swing arm and the spraying swing arm rotates, and when the third pipeline is connected with the side wall of the casing, the steam is introduced from the side wall of the casing and the spraying swing arm does not rotate.