A cleaning machine and its cleaning method

Abstract

The present invention provides a dishwasher and a dishwashing method thereof, belonging to the technical field of dishwashers. It solves the problem that the existing dishwashers cannot quickly remove stains or food residues with strong adhesiveness. The dishwasher and the dishwashing method of the present invention include a machine shell, a left spray arm, a right spray arm, a spray assembly, a water control system, a clean water tank, and a steam assembly. In a dishwasher of the present invention, by controlling the steam assembly to spray steam into the machine shell, the stains or food residues on the tableware are softened by the steam. Thereafter, the water control system is controlled to make one of the left spray arm, the right spray arm, and the spray assembly spray water, 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 assembly to spray water simultaneously, so that the softened stains or food residues can be successfully rinsed off, effectively improving the cleaning effect on the tableware.

Description

Technical Field

[0001] The present invention belongs to the technical field of dishwashers, and relates to a dishwasher and a cleaning method thereof. Background Art

[0002] With the development of social economy and the improvement of family living standards, more and more families use dishwashers to clean tableware after meals to relieve the intensity of household labor.

[0003] In China, most families use tabletop dishwashers. However, the existing tabletop dishwashers have the following problems:

[0004] 1. The existing dishwashers can only clean tableware with the water sprayed by the spray arms. Such a solution can only be used to remove some stains or food residues with poor adhesion.

[0005] 2. Most of the existing dishwashers need to install a water inlet pipeline, and some are integrated in the water tank for dishwashing. For such dishwashers, when cleaning tableware, it is often necessary to add water to the water tank multiple times to carry out the cleaning; moreover, such dishwashers often occupy a large area and are difficult to carry.

[0006] 3. The spray arms of the existing dishwashers can only wash and flush a fixed area, and the flushing force is relatively single, and the effect of efficiently cleaning tableware cannot be achieved. Summary of the Invention

[0007] The purpose of the present invention is to address the above problems existing in the prior art, and to provide a dishwasher and a cleaning method thereof that can quickly remove stains or food residues.

[0008] The purpose of the present invention can be achieved by the following technical solutions: A dishwasher, comprising:

[0009] A housing, at the bottom end inside the housing, a left spray arm and a right spray arm are movably provided, and at the top end inside the housing, a spray assembly is movably provided;

[0010] A water control system, provided on the bottom surface of the housing, the water control system can be used to control one of the left spray arm, the right spray arm and the spray assembly to spray water, 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 assembly to spray water simultaneously;

[0011] A clean water tank, communicated with the water control system, and a steam assembly is further connected to the clean water tank, and the steam assembly can be communicated with the spray assembly or with one side wall of the housing.

[0012] In the above-mentioned dishwasher, the water control system includes a confluence pipe. One end of the confluence pipe is connected to a left pipeline communicating with the left spray arm, and the other end of the confluence pipe is connected to a right pipeline communicating with the right spray arm. A spray pipeline communicating with the spray assembly is connected to the confluence pipe. A circulation pump is connected to the confluence pipe, and the circulation pump and the confluence pipe are communicated through a fifth pipeline.

[0013] In the above-mentioned dishwasher, a left valve body is provided on the left pipeline, a right valve body is provided on the right pipeline, and a spray valve body is provided on the spray pipeline.

[0014] In the above-mentioned dishwasher, the bottom of the machine shell is recessed downward to form a water storage tank. The bottom of the water storage tank and the circulation pump are communicated through a fourth pipeline. A water level sensor and a temperature sensor are provided at the water storage tank, and a heater is provided at the bottom of the water storage tank.

[0015] In the above-mentioned dishwasher, a sixth pipeline is connected to the circulation pump. One end of the sixth pipeline far from the circulation pump is communicated with a sewage tank, and a drain valve is provided on the sixth pipeline.

[0016] In the above-mentioned dishwasher, a first pipeline is communicated with the water purification tank. A second pipeline communicating with the side wall of the water storage tank is provided on the first pipeline, and a first pump body is provided on the second pipeline.

[0017] In the above-mentioned dishwasher, the steam assembly includes a third pipeline communicated with the first pipeline. A second pump body and a steam generator are provided on the third pipeline. One end of the third pipeline far from the first pipeline is connected to the spray pipeline through a three-way valve or one end of the third pipeline far from the first pipeline is communicated with one side wall of the machine shell.

[0018] In the above-mentioned dishwasher, the spray assembly includes a spray swing arm movably arranged at the top of the machine shell. A motor for driving the spray swing arm to rotate is provided on one side of the machine shell. One end of the spray swing arm is provided with a swing arm pipeline, and the swing arm pipeline is communicated with the three-way valve or the spray pipeline.

[0019] A cleaning method for a dishwasher includes:

[0020] Step S1: Transport the water in the water purification tank to the water storage tank. During this process, the heater heats the water in the water storage tank.

[0021] Step S2: Open the left valve body and the right valve body, and turn on the circulation pump to enable the left spray arm and the right spray arm to simultaneously perform a preliminary cleaning on the tableware in the machine shell.

[0022] Step S3: After cleaning for a certain period of time, close the left valve body, the right valve body, and the circulation pump, and turn on the steam generator and the second pump body. Then, the water in the clean water tank can be sucked into the steam generator, and the liquid water is converted into water vapor by the steam generator and introduced into the machine shell.

[0023] Step S4: After the water vapor is introduced into the machine shell for a certain period of time, close the steam generator and the second pump body, turn on the circulation pump, and turn on the left valve body or the right valve body or the spray valve body or the left and right valve bodies or the left, right, and spray valve bodies.

[0024] Step S5: After a certain period of time, close the left valve body, the right valve body, and the spray valve body, and turn on the drain valve. The water in the storage tank is discharged into the sewage tank through the fourth pipeline, the circulation pump, and the sixth pipeline in sequence.

[0025] Step S6: Repeat steps S1 to S5 again.

[0026] In the above cleaning method of a cleaning machine, during the implementation of step S3, when the third pipeline, the spray pipeline, and the swing arm pipeline are connected by a three-way valve, the steam is introduced into the machine shell through the spray swing arm and the spray swing arm rotates at this time. When the third pipeline is communicated with the side wall of the machine shell, the steam is introduced from the side wall of the machine shell, and the spray swing arm does not rotate at this time.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. In a cleaning machine of the present invention, by controlling the steam component to spray steam into the machine shell, the stains or food residues on the tableware are softened by the steam. Then, by controlling the water control system, one of the left spray arm, the right spray arm, and the spray component sprays water, or the left and right spray arms spray water simultaneously, or the left spray arm, the right spray arm, and the spray component spray water simultaneously, so that the softened stains or food residues can be washed off smoothly, effectively improving the cleaning effect on the tableware.

[0029] 2. During the process of spraying steam, when the steam component is communicated with the spray component, the steam will be sprayed into the machine shell through the spray component. During this process, the spray component will rotate in the machine shell. In this way, the steam can be sprayed into all corners of the inner part of the machine shell, so that the stains and food residues on the tableware can be fully softened by the steam, so that the stains and food residues can be washed off by water smoothly.

[0030] 3. During the process of spraying steam, when the steam component is communicated with one side wall of the machine shell, since the distance between the end of the steam component generating steam and the tableware is less than the distance between the spray component and the tableware at this time, the loss of steam heat will be reduced, so as to accelerate the softening speed of the stains or food residues on the tableware.

[0031] 4. A diversion channel is provided at the bottom of the casing, and the diversion channel is communicated with the water storage tank. Both the left spray arm and the right spray arm pass through the diversion channel. When the dishwasher cleans tableware, the water at the bottom of the casing will move towards the water storage tank through the diversion channel to facilitate the discharge of sewage.

[0032] 5. The cleaning method of the dishwasher can effectively remove the residual stains or food residues on the tableware, achieving the effect of efficiently cleaning the tableware.

[0033] 6. During the cleaning process, select one of the left spray arm, the right spray arm, and the spray assembly to spray water, so that all the water coming out of the circulation pump is concentrated in one place. In this way, the water pressure of the spray can be effectively increased, the impact force can be increased, and thus the cleaning ability can be improved.

[0034] 7. During the cleaning process, the spray swing arm can also rotate while spraying water, so as to realize dynamic sweeping spraying, effectively improving the cleaning ability of the dishwasher.

[0035] 8. The water purification tank is externally independent. During installation, by quickly plugging in between the first pipeline and the water purification tank, the water control system can be communicated with the water purification tank to realize the modular installation of the dishwasher. Secondly, it is also convenient to carry after disassembling the dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a system schematic diagram of a dishwasher after connecting the steam assembly and the spray assembly according to the present invention.

[0037] Figure 2 is a structural schematic diagram of a dishwasher after connecting the steam assembly and the spray assembly according to the present invention.

[0038] Figure 3 Internal structural schematic diagram of the dishwasher.

[0039] Figure 4 is a structural schematic diagram of a dishwasher after connecting the steam assembly and the side wall of the casing according to the present invention.

[0040] Figure 5 is a system schematic diagram of a dishwasher after connecting the steam assembly and the side wall of the casing according to the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] The following are specific embodiments of the present invention and in combination with the drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0042] Embodiment 1

[0043] As Figure 1 — Figure 5As shown in the figure, a dishwasher in this embodiment includes a housing 100, a left spray arm 110, a right spray arm 120, a spray assembly 130, a water control system 200, a clean water tank 300, and a steam assembly 400.

[0044] The left spray arm 110 and the right spray arm 120 are movably arranged at the bottom end inside the housing 100, and the spray assembly 130 is movably arranged at the top end inside the housing 100. The water control system 200 is arranged on the bottom surface of the housing 100. The water control system 200 can be used to control one of the left spray arm 110, the right spray arm 120, and the spray assembly 130 to spray water, or control the left spray arm 110 and the right spray arm 120 to spray water simultaneously, or control the left spray arm 110, the right spray arm 120, and the spray assembly 130 to spray water simultaneously. The clean water tank 300 is communicated with the water control system 200, and a steam assembly 400 is also connected to the clean water tank 300. When washing tableware, people need to place the tableware into the housing 100 and ensure that the left spray arm 110, the right spray arm 120, and the spray assembly 130 are not in contact with the tableware. After that, people transport the water in the clean water tank 300 to the bottom of the housing 100. Then, people control the water control system 200 to initially wash the tableware in the housing 100 with the left spray arm 110 and the right spray arm 120 spraying water simultaneously. After washing for a certain period of 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 housing 100, so that the stains or food residues on the tableware are softened by the steam. After that, the water control system 200 is controlled again to make one of the left spray arm 110, the right spray arm 120, and the spray assembly 130 spray water, or control the left spray arm 110 and the right spray arm 120 to spray water simultaneously, or control the left spray arm 110, the right spray arm 120, and the spray assembly 130 to spray water simultaneously. In this way, the tableware in the housing 100 can be washed once. Then, the water control system 200 is operated to drain the sewage in the housing 100. Then, the above steps are repeated to wash the tableware in the housing 100 again. In this way, the stains and food residues on the tableware can be cleaned, achieving the effect of efficiently cleaning the tableware.

[0045] Further, the steam assembly 400 can be communicated with the spraying assembly 130 or with one side wall of the casing 100. During the process of spraying steam, when the steam assembly 400 is communicated with the spraying assembly 130, the steam will be sprayed into the casing 100 through the spraying assembly 130. During this process, the spraying assembly 130 will rotate within the casing 100. In this way, the steam can be sprayed into all corners inside the casing 100, so that the stains and food residues on the tableware can be fully softened by the steam, enabling the stains and food residues to be washed away smoothly by water; when the steam assembly 400 is communicated with one side wall of the casing 100, since the distance between the steam-generating end of the steam assembly 400 and the tableware at this time is less than the distance between the spraying assembly 130 and the tableware, the loss of steam heat will be reduced, thereby accelerating the softening speed of the stains or food residues on the tableware.

[0046] The water control system 200 includes a converging pipe 210. One end of the converging pipe 210 is connected with a left pipeline 220 communicated with the left spray arm 110, and the other end of the converging pipe 210 is connected with a right pipeline 230 communicated with the right spray arm 120. A spray pipeline 240 communicated with the spraying assembly 130 is connected to the converging pipe 210. A circulation pump 250 is connected to the converging pipe 210, and the circulation pump 250 is communicated with the converging pipe 210 through a fifth pipeline 253. A left valve body 221 is provided on the left pipeline 220, a right valve body 231 is provided on the right pipeline 230, and a spray valve body 241 is provided on the spray pipeline 240. The bottom of the casing 100 is recessed downward to form a water storage tank 140, and the bottom of the water storage tank 140 is communicated with the circulation pump 250 through a fourth pipeline 251. When washing the tableware, people only need to turn on the circulation pump 250 to suck the water stored in the water storage tank 140 into the converging pipe 210. After that, when people turn on the left valve body 221, the water in the converging pipe 210 will sequentially pass through the converging pipe 210, the left valve body 221 and the left spray arm 110, and be sprayed into the casing 100 through the left spray arm 110, so that the tableware on one side of the left spray arm 110 can be washed clean. When people turn on the right valve body 231, the water in the converging pipe 210 will sequentially pass through the converging pipe 210, the right valve body 231 and the right spray arm 120, and be sprayed into the casing 100 through the right spray arm 120, so that the tableware on one side of the right spray arm 120 can be washed clean. When people turn on the spray valve body 241, the water in the converging pipe 210 will sequentially pass through the converging pipe 210, the spray valve body 241 and the spraying assembly 130, and be sprayed into the casing 100 through the spraying assembly 130. During this process, the spraying assembly 130 will rotate within the casing 100. In this way, all corners of the casing 100 can be sprayed with water, so that the tableware in the casing 100 can all be sprayed with water, thereby enabling the tableware in the casing 100 to be washed clean.

[0047] A sixth pipeline 252 is connected to the circulation pump 250. One end of the sixth pipeline 252 far from the circulation pump 250 communicates with a sewage tank 252a. A drain valve 252b is provided on the sixth pipeline 252. After the dishwasher finishes washing the tableware, people need to close the left valve body 221, the right valve body 231, and the spray valve body 241. The circulation pump 250 remains turned on, and the drain valve 252b is opened, so that the sewage in the water storage tank 140 passes through the fourth pipeline 251, the circulation pump 250, and the sixth pipeline 252, and the sewage is discharged into the sewage tank 252a through the sixth pipeline 252. After the sewage discharge is completed, the circulation pump 250 and the drain valve 252b are closed.

[0048] Furthermore, a filter screen (not marked in the figure) is provided at the position of the fourth pipeline 251 of the water storage tank 140. Through the setting of this filter screen, larger food particles will not enter the fourth pipeline 251, avoiding blockage of the fourth pipeline 251 or the sixth pipeline 252 when discharging sewage, and also avoiding damage to the circulation pump 250.

[0049] A first pipeline 310 communicates with the water purification tank 300. A second pipeline 311 communicating with the side wall of the water storage tank 140 is provided on the first pipeline 310. A first pump body 311a is provided on the second pipeline 311. A water level sensor 141 is provided at the water storage tank 140. Among them, the water level sensor 141 is electrically connected to the first pump body 311a. When adding water to 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 this signal to the first pump body 311a, and the first pump body 311a will stop working, so that the amount of water stored in the water storage tank 140 always maintains a certain volume. In this way, the water consumption of the dishwasher can be controlled.

[0050] A temperature sensor 142 is provided at the position of the water storage tank 140 on the machine shell 100. A heater 143 is provided at the bottom of the water storage tank 140. When people pass the water in the water purification tank 300 into the water storage tank 140, the heater 143 will heat the water in the water storage tank 140. During this process, the temperature sensor 142 constantly detects the water temperature in the water storage tank 140. When the water temperature in the water storage tank 140 reaches the preset water temperature of the temperature sensor 142, the heater 143 will stop heating, so that the water temperature in the water storage tank 140 always maintains a constant temperature.

[0051] The steam assembly 400 includes a third pipeline 410 communicating with the first pipeline 310. A second pump body 420 and a steam generator 430 are provided on the third pipeline 410. When steam needs to be generated, people need to turn on the second pump body 420 and the steam generator 430 so that the second pump body 420 sucks the water in the water purification tank 300 into the steam generator 430, and the steam generator 430 converts the liquid water into steam. One end of the third pipeline 410 away from the first pipeline 310 is connected to the spray pipeline 240 through a three-way valve 260 or one end of the third pipeline 410 away from the first pipeline 310 communicates with a side wall of the casing 100.

[0052] The spray assembly 130 includes a spray swing arm 131 movably arranged on the top of the casing 100. A motor 132 for driving the spray swing arm 131 to rotate is provided on one side of the casing 100. One end of the spray swing arm 131 is provided with a swing arm pipeline 133, and the swing arm pipeline 133 communicates with the three-way valve 260 or communicates with the spray pipeline 240. During installation, one end of the third pipeline 410 away from the first pipeline 310, the swing arm pipeline 133 and the spray pipeline 240 are connected through the three-way valve 260, so that the connection between the steam assembly 400 and the spray assembly 130 can be realized. When the steam generator 430 generates steam, the steam can smoothly pass through the spray swing arm 131 and be sprayed into the casing 100. During this process, the motor 132 drives the spray swing arm 131 to rotate, so that the steam sprayed from the spray swing arm 131 can cover all corners inside the casing 100, so that all tableware in the casing 100 can be covered by steam and softened. When one end of the third pipeline 410 away from the first pipeline 310 communicates with a side wall of the casing 100, the swing arm pipeline 133 only communicates with the spray pipeline 240, so that the steam generated by the steam generator 430 can smoothly pass through the side wall of the casing 100 and be sprayed into the casing 100.

[0053] As Figure 3 shown, a diversion groove 150 is provided at the bottom of the casing 100. The diversion groove 150 communicates with the water storage tank 140. Both the left spray arm 110 and the right spray arm 120 pass through the diversion groove 150. When the dishwasher cleans the tableware, the water at the bottom of the casing 100 will move towards the water storage tank 140 through the diversion groove 150 to facilitate the discharge of sewage.

[0054] Further, during the process of cleaning tableware, when water drops from the tableware, due to the action of gravity, the water will be recycled back into the water storage tank or return to the water storage tank through the diversion groove. At this time, the process of cleaning the tableware has not ended, so that the recycled water will be pumped by the circulation pump and reused to clean the tableware. This reflects the reuse of water resources. During the suction process of the circulation pump, food residues and sundries will be blocked by the filter screen to prevent large food particles from entering the fourth pipeline 251 when the water resources are reused.

[0055] Embodiment 2

[0056] As Figure 1 — Figure 5 shown, the cleaning method of a cleaning machine in this embodiment includes:

[0057] Step S1: Put the tableware into the machine housing 100, and make the left spray arm 110, the right spray arm 120 and the spray assembly 130 not in contact with the tableware. After that, turn on the first pump body 311a, and the water in the water purification tank 300 can be transported to the water storage tank 140 through the first pipeline 310 and the second pipeline 311. When the water level in the water storage tank 140 reaches the preset value of the water level sensor 141, the first pump body 311a is turned off. 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;

[0058] Step S2: Open the left valve body 221 and the right valve body 231, and turn on the circulation pump 250. The water in the water storage tank 140 can be sucked to the left spray arm 110 and the right spray arm 120, so that the left spray arm 110 and the right spray arm 120 simultaneously conduct a preliminary cleaning on the tableware in the machine housing 100;

[0059] Step S3: After cleaning for a certain period of time, close the left valve body 221, the right valve body 231 and the circulation pump 250, turn on the steam generator 430 and the second pump body 420. The second pump body 420 can suck the water in the water purification tank 300 into the steam generator 430. After that, the steam generator 430 converts the liquid water into water vapor and passes it into the machine housing 100. When the steam encounters the stains or food residues on the tableware, the stains or food residues will be softened by the steam;

[0060] Step S4. After steam has been introduced into the housing 100 for a certain period of time, turn off the steam generator 430 and the second pump body 420, turn on the circulation pump 250, and according to requirements, turn on 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, 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 stains or food residues are washed away;

[0061] Step S5. After the tableware has been rinsed for a certain period of time, turn off the left valve body 221, the right valve body 231, and the spray valve body 241, turn on the drain valve 252b, and the water in the water storage tank 140 can pass through the fourth pipeline 251, the circulation pump 250, and the sixth pipeline 252 in sequence, and thus be discharged into the sewage tank 252a;

[0062] Step S6. Repeat steps S1 to S5 again, and the cleaning effect of the dishwasher on the tableware can be effectively improved.

[0063] Further, during the implementation of step S3, when the third pipeline 410, the spray pipeline 240, and the swing arm pipeline 133 are connected through a three-way valve, steam is introduced into the housing through the spray swing arm, and at this time, the spray swing arm 131 rotates, so that the steam ejected from the spray swing arm 131 can cover all corners inside the housing 100, so that all the tableware in the housing 100 can be covered by steam and softened; when one end of the third pipeline 410 far from the first pipeline 310 is communicated with a side wall of the housing 100, the swing arm pipeline 133 is only communicated with the spray pipeline 240, so that the steam generated by the steam generator 430 can smoothly be ejected into the housing 100 through the side wall of the housing 100, and at this time, the spray swing arm 131 does not rotate.

[0064] Through the above cleaning method of the dishwasher, the stains or food residues remaining on the tableware can be effectively removed, achieving the effect of efficiently cleaning the tableware.

[0065] It should be noted that all the directional indicators (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the drawings). If this specific posture changes, then the directional indicators will also change accordingly.

[0066] In addition, in the present invention, descriptions such as "first", "second", "one", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0067] In the present invention, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] In addition, the technical solutions between various embodiments of the present invention can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. A cleaning machine, characterized in that, Comprising: A housing, at the bottom inside the housing, a left spray arm and a right spray arm are movably provided, and at the top inside the housing, a spray assembly is movably provided; A water control system, provided on the bottom surface of the housing, the water control system can be used to control one of the left spray arm, the right spray arm and the spray assembly to spray water, or control the left spray arm and the right spray arm to spray water simultaneously, or simultaneously control the left spray arm, the right spray arm and the spray assembly to spray water; A clean water tank, communicated with the water control system, and a steam assembly is further connected to the clean water tank, and the steam assembly can be communicated with the spray assembly or communicated with a side wall of the housing; The water control system includes a confluence pipe, one end of the confluence pipe is connected with a left pipeline communicated with the left spray arm, the other end of the confluence pipe is connected with a right pipeline communicated with the right spray arm, a spray pipeline communicated with the spray assembly is communicated on the confluence pipe, a circulation pump is connected to the confluence pipe, and the circulation pump and the confluence pipe are communicated through a fifth pipeline; A left valve body is provided on the left pipeline, a right valve body is provided on the right pipeline, and a spray valve body is provided on the spray pipeline; The bottom of the housing is recessed downward to form a water storage tank, and the bottom of the water storage tank is communicated with the circulation pump through a fourth pipeline; A first pipeline is communicated with the clean water tank, a second pipeline communicated with the side wall of the water storage tank is provided on the first pipeline, and a first pump body is provided on the second pipeline; The steam assembly includes a third pipeline communicated with the first pipeline, a second pump body and a steam generator are provided on the third pipeline, and one end of the third pipeline far from the first pipeline is connected with the spray pipeline through a three-way valve or one end of the third pipeline far from the first pipeline is communicated with a side wall of the housing.

2. The cleaning machine according to claim 1, wherein A water level sensor and a temperature sensor are provided at the water storage tank, and a heater is provided at the bottom of the water storage tank.

3. A cleaning machine according to claim 1, characterized in that, A sixth pipeline is connected to the circulation pump, one end of the sixth pipeline far from the circulation pump is communicated with a sewage tank, and a drain valve is provided on the sixth pipeline.

4. A cleaning machine according to claim 1, characterized in that, The spray assembly includes a spray swing arm movably provided at the top of the housing, a motor for driving the spray swing arm to rotate is provided on one side of the housing, and a swing arm pipeline is provided at one end of the spray swing arm, and the swing arm pipeline is communicated with the three-way valve or communicated with the spray pipeline.

5. A cleaning method of a cleaning machine, using the cleaning machine according to any one of claims 1-4, characterized in that, Comprising: Step S1, conveying the water in the clean water tank into the water storage tank, and during this process, the heater heats the water in the water storage tank; Step S2, opening the left valve body and the right valve body, and starting the circulation pump, so that the left spray arm and the right spray arm simultaneously perform a preliminary cleaning on the dishes in the housing; Step S3, after cleaning for a certain time, closing the left valve body, the right valve body and the circulation pump, starting the steam generator and the second pump body, then the water in the clean water tank can be sucked into the steam generator, and the liquid water is converted into water vapor by the steam generator and introduced into the housing; Step S4: After steam has been introduced into the casing for a certain period of time, turn off the steam generator and the second pump body, turn on the circulation pump, and turn on the left valve body or the right valve body or the spray valve body or the left and right valve bodies or the left valve body, the right valve body and the spray valve body; Step S5: After a certain period of time, turn off the left valve body, the right valve body and the spray valve body, turn on the drain valve, and discharge the water in the water storage tank through the fourth pipeline, the circulation pump and the sixth pipeline in sequence, so as to discharge it into the sewage tank; Step S6: Repeat steps S1 to S5 again.

6. The cleaning method of a cleaning machine according to claim 5, wherein During the implementation of step S3, when the third pipeline, the spray pipeline and the swing arm pipeline are connected through a three-way valve, steam is introduced into the casing through the spray swing arm and the spray swing arm rotates at this time. When the third pipeline is communicated with the side wall of the casing, steam is introduced from the side wall of the casing and the spray swing arm does not rotate at this time.

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