CN216776981U - Cleaning machine - Google Patents

Abstract

The utility model relates to a cleaning machine which comprises a box body, a spraying arm, a water pumping mechanism, a slag collecting basket and a steam generator, wherein an air guide channel is formed in a hollow manner in a power output shaft, a first steam output end of the steam generator is communicated with the air guide channel, and a second steam output end of the steam generator is communicated with a water return area and/or the slag collecting basket. The hollow power output shaft and the spray arm are used for conveying steam into the box body to pre-clean dishes with steam, so that the effect of removing stubborn dirt is improved; the steam conveying mode is adopted, a steam inlet does not need to be formed in the box body, and production and assembly are facilitated; because the hot steam rises, the steam is output by the spray arm and then is diffused from bottom to top at the bottom of the box body, so that the uniform diffusion is facilitated, the steam pre-cleaning dead angle is eliminated, and the cleaning effect is improved; the utility model also leads the steam to the backwater area and/or the slag collecting basket after the cleaning is finished, and carries out high-temperature disinfection on the steam, thereby eliminating secondary pollution and further improving the cleaning effect.

Description

Cleaning machine

Technical Field

The utility model relates to the technical field of dish washing machines, in particular to a washing machine for washing bowls, dishes, fruits and vegetables.

Background

With the increasing living standard of people, the dish washing machine as a kitchen household appliance is more and more introduced into families. The dish-washing machines on the market at present are generally divided into a table type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the table type dish-washing machine is an integral independent structure and is generally placed on a table top for use; the cabinet type dish washing machine is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the sink dishwasher is combined with a sink and is generally installed in a kitchen cabinet for use.

The above-mentioned various types of dish washers generally achieve a washing action by a water pump lifting up water and spraying it toward dishes in a washing space. The temperature of the general dishwasher in the water washing stage is not more than 70 ℃ at most, and the relatively stubborn stains can be adhered to the surfaces of the dishes and are difficult to remove. In order to solve the above problems, the chinese utility model patent publication No. CN205019008U, dishwasher (application No.: CN201520509852.3) discloses a structure comprising: an inner container; the water cup is arranged at the bottom of the inner container; the steam outlet of the steam generator is communicated with the inner space of the inner container; and the water supply system is respectively connected with the water source, the water cup and the steam generator.

Above-mentioned scheme can carry out steam prewashing to get rid of stubborn stain, improve the cleaning performance. However, because the steam is directly added into the inner container, a steam inlet is required to be arranged on the side wall of the inner container, and the production and the assembly are inconvenient; moreover, steam is directly input into the inner container and is difficult to disperse uniformly, so that steam prewashing has cleaning dead corners, and the cleaning effect is influenced. In addition, dish washer's return water region, the top generally covers has and has filtered the otter board, filters to set up an album sediment basket on the otter board, and the main part filter part that gathers the sediment basket is located the return water region, and at the return water in-process, the large granule residue is collected in an album sediment basket, nevertheless uses the longer time after, and tiny residue may be adhered to on an album sediment basket and the filtration otter board, and fermentation is rotten and then breed the bacterium in moist environment, causes secondary pollution to the tableware easily.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the utility model is to provide a cleaning machine which is convenient to produce and assemble, can improve the steam dispersion uniformity, thereby eliminating the cleaning dead angle and improving the cleaning effect.

The second technical problem to be solved by the utility model is to provide a cleaning machine which can sterilize the backwater area and the residue collecting basket of the dish washing machine at high temperature so as to eliminate secondary pollution and improve the cleaning effect aiming at the current situation of the prior art.

The technical scheme adopted by the utility model for solving at least one technical problem is as follows:

a cleaning machine comprises a box body, a spray arm, a water pumping mechanism and a slag collecting basket, wherein a concave water return area is arranged at the bottom of the box body, a filter screen plate covers the top of the water return area, the spray arm is arranged above the filter screen plate, the water pumping mechanism is arranged at the bottom of the box body and used for pumping water in the water return area into the spray arm, a power output shaft of the water pumping mechanism penetrates through the box body to extend into the spray arm, the slag collecting basket is accommodated in the water return area, an upper port of the slag collecting basket is exposed out of the filter screen plate, the cleaning machine further comprises a steam generator, an air guide channel is formed in the power output shaft in a hollow mode, a first steam output end of the steam generator is communicated with the air guide channel, and a second steam output end of the steam generator is communicated with the water return area and/or the slag collecting basket.

Preferably, the bottom wall of the box body is provided with a water outlet arranged corresponding to the lower port of the slag collecting basket, a water drainage component is arranged below the box body, the water drainage component comprises a valve shell connected with the water outlet, and the second steam output end of the steam generator is communicated with the valve shell. The bottom of the drainage component is also connected with a forced drainage pump to realize no residual drainage. Be connected steam generator's second steam output with the valve casing, the lowest position that lets in the position for cleaning machine water flow system that basically can realize steam is favorable to eliminating dry and disinfection dead angle, improves dry and disinfection effect.

In order to facilitate the delivery of steam, the second steam output end of the steam generator is communicated with the valve casing through an air duct, and a first one-way valve which only allows fluid to flow from the steam generator into the valve casing is arranged on the air duct.

Preferably, the valve casing includes the first portion that corresponds the vertical extension of drain outlet and is the curved second part of arc from this first portion lower extreme, thereby the drainage subassembly still includes the case that can install in the lower extreme of second portion telescopically and open and close it, the end of giving vent to anger of air duct is connected with the hunch side of second portion. The structure can basically realize that the inlet position of the steam is the lowest position of the water flow system of the cleaning machine, is favorable for eliminating dead angles of drying and disinfection, and improves the drying and disinfection effects; and the air outlet end of the air guide pipe is connected to the arched side of the second part, so that the steam can be guided upwards by utilizing the structure of the second part.

As a modification, a humidity sensor capable of detecting humidity is provided in the valve housing. Humidity size direct reaction drainage subassembly department whether breeds the bacterium easily, judges the degree of drying of drainage subassembly department through above-mentioned humidity transducer to whether the output steam of control steam generator second steam output is convenient for control.

Preferably, the slag collecting basket comprises a main body part which is through up and down and a flow guide sleeve which is arranged in the main body part, the flow guide sleeve comprises a cylinder body which is sleeved in the main body part, a first flow guide plate which extends to the inner wall of the main body part from bottom to top is arranged on the edge of the top of the cylinder body, and a second flow guide plate which can cover an upper port of the cylinder body and is communicated with the inner cavity of the cylinder body is arranged above the cylinder body. The first guide plate and the second guide plate can guide water flow downwards to enter the slag collecting basket, and the barrel can lock residues on the lower part of the main body part to avoid overflow, so that the effects of collecting and locking the residues are improved.

In order to facilitate installation and assembly, the upper end of the cylinder body is provided with a support arm extending upwards, and the second guide plate is arranged at the upper end of the support arm.

Preferably, the first guide plate and the second guide plate together form a slow flow structure capable of blocking rising steam. When steam upwards diffuses from the valve casing, the slow flow structure can delay the conveying speed of the steam, prolong the contact time of the steam and the slag collecting basket, and therefore the disinfection effect on the slag collecting basket is improved.

Preferably, a first spray hole is formed in the top wall of the spray arm, the spray arm is provided with a gas collection cavity located at the upstream of the first spray hole and used for conveying gas to the direction of the first spray hole along the fluid flowing direction, and the upper port of the power output shaft is communicated with the gas collection cavity. The gas collecting cavity is convenient for uniformly dispersing steam to each spray hole, and the gas collecting cavity is also convenient for adding gas into the sprayed water flow, so that the steam conveying and cavitation gas adding structure is integrated, the structure of the whole machine is simplified, and the cost is reduced.

Preferably, the spray arm is provided with a transmission structure which can enable the spray arm to be separated from the power output shaft in the forward rotation state of the power output shaft and enable the spray arm to rotate along with the power output shaft in the reverse rotation state of the power output shaft. This structure can make the spray arm rotate at the steam delivery stage, under the condition that does not utilize the rivers viscous force that the impeller rotation produced to stir spun steam, improve steam diffusion efficiency and homogeneity.

Preferably, the spray arm is provided with a mounting hole for the power output shaft to penetrate through and extend into the gas collection cavity, a one-way bearing is arranged between the inner wall of the mounting hole and the outer wall of the power output shaft, and the one-way bearing forms the transmission structure. The one-way bearing is simple in structure, convenient to assemble, small in occupied space after assembly, good in use stability, convenient to allow the spray arm to rotate in a steam conveying state, capable of improving steam diffusion efficiency and uniformity and capable of avoiding interference caused by rotation between the one-way bearing and the spray arm in a water washing stage.

Preferably, the diapire of spray arm is last to open there is the water inlet, the spray arm has the chamber of catchmenting that is linked together with the water inlet, the mounting hole is seted up on the roof in chamber of catchmenting, pump water mechanism still includes the impeller, and at least upper portion of this impeller can be located in the chamber of catchmenting and be connected with power take off shaft rotatably.

Preferably, the upper part of the impeller is a centrifugal impeller positioned in the water collecting cavity, the lower part of the impeller is an axial-flow impeller positioned below the water inlet, the top of the impeller is provided with an end cover, the end cover is gradually recessed downwards from the edge to the central part to form a recessed area, the recessed area is arranged corresponding to the mounting hole, the top wall of the water collecting cavity is provided with a mounting bin which is arranged around the mounting hole and partially extends into the recessed area in a vertically-recessed manner, and the one-way bearing is arranged in the mounting bin. By adopting the impeller structure, negative pressure is generated in the water collecting cavity when the impeller rotates, which is beneficial to improving the water flow drawing effect, but in the cleaning process, large bubbles are easily gathered between the sunken area of the end cover and the top wall of the water collecting cavity, which seriously affects the actual lift of the pump; the utility model makes the mounting bin sink to the depressed area, not only provides mounting space for the one-way bearing, but also can extrude the air bubbles gathered at the position to the edge and further discharge the air bubbles through the flow passage, thereby being beneficial to avoiding the air bubbles gathering and expanding at the position and reducing the influence on the lift of the water pumping mechanism.

Preferably, the power output shaft is further connected with a second one-way valve which only allows steam to flow to the air guide channel. Set up this second check valve, when steam generator inputed steam to the air guide passageway, can avoid steam excessive, stop at steam generator and carry the washing in-process of steam to the air guide passageway, be convenient for add the air to the injection rivers through this check valve, air guide passageway to utilize cavitation to improve the cleaning performance.

Preferably, the spray arm comprises a body and a top plate arranged above the body, the body is provided with a flow channel extending along the length direction of the body, the top plate and the top wall of the body jointly enclose the gas collecting cavity, the top wall of the body is provided with a second spray hole communicated with the flow channel and located in the gas collecting cavity, the first spray hole is arranged on the top plate and corresponds to the second spray hole, and a gap is formed between the first spray hole and the second spray hole. By adopting the structure, according to the Venturi effect, in the process that water flow is ejected out through the second nozzle hole and the first nozzle hole, air in the air collecting cavity can be sucked into the water column through a gap between the second nozzle hole and the first nozzle hole, so that bubbles are carried in the jet flow, and the bubbles are broken on the surfaces of dishes or fruits and vegetables, so that the dirt stripping force can be improved, and the cleaning effect is improved; and, through adding gas in the efflux from the mode of breathing in, need not to set up air pump etc. but greatly reduced manufacturing cost.

Preferably, the side wall of the box body is provided with an exhaust port, and the outer wall of the box body is provided with an exhaust assembly capable of exhausting gas in the box body through the exhaust port. After the steam sterilization is used, the steam in the box body is pumped out through the exhaust assembly, and the drying effect can be accelerated.

Preferably, the steam generator is provided with control valves for controlling the opening or closing of the first steam output end and the second steam output end respectively.

Compared with the prior art, the utility model has the advantages that: the steam generator is arranged, steam is conveyed into the box body by the hollow power output shaft and the spray arm, and dishes are subjected to steam pre-cleaning, so that the effect of removing stubborn dirt is improved; the steam conveying mode is adopted, a steam inlet does not need to be formed in the box body, and production and assembly are facilitated; because the hot steam rises, the steam is output by the spray arm and then is diffused from bottom to top at the bottom of the box body, so that the uniform diffusion is facilitated, the steam pre-cleaning dead angle is eliminated, and the cleaning effect is improved; the utility model can also lead the steam to the backwater area and/or the slag collecting basket after the cleaning is finished, and carry out high-temperature disinfection on the steam, thereby eliminating secondary pollution and further improving the cleaning effect.

Drawings

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

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a schematic structural view of a spray arm according to an embodiment of the present invention;

FIG. 6 is a cross-sectional view of FIG. 5;

FIG. 7 is an enlarged view of portion A of FIG. 6;

FIG. 8 is an exploded view of FIG. 5;

FIG. 9 is a schematic bottom view of an embodiment of the present invention (with the pipes partially hidden);

FIG. 10 is another cross-sectional view of an embodiment of the present invention;

FIG. 11 is a cross-sectional view of a slag collection basket in an embodiment of the present invention;

FIG. 12 is a top view of a slag collection basket in an embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 12, the cleaning machine of this embodiment includes a box 1, a spray arm 2, a water pumping mechanism 3 and a slag collecting basket 5, a concave water return area 11 is provided at the bottom of the box 1, a filter screen 12 covers the top of the water return area 11, a flow guide seat 13 passing through the filter screen 12 is provided in the water return area 11, the spray arm 2 can be rotatably supported at the top of the flow guide seat 13 and located above the filter screen 12, the water pumping mechanism 3 is provided at the bottom of the box 1 and is used for pumping water from the water return area 11 to the spray arm 2, and the slag collecting basket 5 is accommodated in the water return area 11 and has an upper port exposed out of the filter screen 12.

As shown in fig. 6 and 8, the shower arm 2 has a flow passage 21 extending in the longitudinal direction, a water collecting chamber 22 having a substantially disk shape communicating with the flow passage 21 is provided at the center of the shower arm 2, a water inlet 23 communicating with the water collecting chamber 22 is provided at the bottom wall of the shower arm 2, and a water spray hole is provided at the top wall. As shown in fig. 4, the water pumping mechanism 3 includes a motor 31 and an impeller 32, an upper portion of the impeller 32 is rotatably disposed in the water collecting chamber 22, a lower portion of the impeller 32 is located below the water inlet 23, an upper portion of the impeller 32 is a centrifugal impeller for dispersing water in the water collecting chamber 22 into the flow channel 21, and a lower portion of the impeller 32 is an axial impeller for drawing up water in the backwater region 11. The motor 31 is arranged on the outer bottom wall of the box body 1, a power output shaft 311 of the motor 31 penetrates through the bottom wall of the box body 1, upwards penetrates through the water inlet 23 and extends into the spraying arm 2, and the impeller 32 is sleeved on the periphery of the power output shaft 311 and rotates along with the power output shaft.

The embodiment is provided with the steam generator 4 which enables the cleaning machine to have the steam prewashing function and to disinfect and dry the dishes, the backwater area 11 and the slag collecting basket 5 at high temperature after the washing is finished. An air guide channel 310 is formed in the hollow part of the power output shaft 311, a first steam output end 401 of the steam generator 4 is communicated with the air guide channel 310, and a second steam output end 402 of the steam generator 4 is communicated with the water return area 11 and/or the slag collecting basket 5. The steam generator 4 of this embodiment is provided with control valves for controlling whether the first steam output end 401 and the second steam output end 402 are opened or not.

Specifically, a water inlet 14 is formed in the side wall of the upper portion of the box body 1, a water inlet valve 6 communicated with a water source is arranged at a corner of the bottom of the box body 1, a first outlet 61 of the water inlet valve 6 is connected with the water inlet 14 through a pipeline, a second outlet 62 of the water inlet valve 6 is connected with the input end of the steam generator 4 through a pipeline, and the steam output end of the steam generator 4 is connected with the lower port of the power output shaft 311 through a conduit 41. The steam generator 4 is provided with a flow limiting mechanism which can control the water flow for generating steam so as to control the steam flow.

The side wall of the box body 1 is provided with an exhaust port 15, and the outer wall of the box body 1 is provided with an exhaust assembly 9 which can exhaust the gas in the box body 1 through the exhaust port 15. After sterilization with steam, the drying effect can be accelerated by extracting the steam in the cabinet 1 through the exhaust assembly 9.

As shown in fig. 6, a first nozzle hole 24 is formed in the top wall of the spray arm 2, along the fluid flowing direction, the spray arm 2 has a gas collecting cavity 25 located upstream of the first nozzle hole 24 and used for conveying gas towards the first nozzle hole 24, and an upper port of the power output shaft 311 is communicated with the gas collecting cavity 25. The gas collecting cavity 25 is convenient for uniformly dispersing steam to each spray hole, and the gas collecting cavity 25 is also convenient for filling gas into the jet water flow, so that the steam conveying and cavitation gas filling structure is integrated, the structure of the whole machine is simplified, and the cost is reduced.

Specifically, the spray arm 2 includes a body 2a and a top plate 2b disposed above the body 2a, the flow channel 21 is located in the body 2a and extends along the length direction of the body 2a, and the top plate 2b and the top wall of the body 2a enclose a gas collecting cavity 25. The top wall of the main body 2a is opened with a second nozzle 26 communicating with the flow channel 21 and located in the gas collecting cavity 25, the first nozzle 24 is opened on the top plate 2b and corresponds to the second nozzle 26, as shown in fig. 7, a gap 200 is provided between the first nozzle 24 and the second nozzle 26. According to the Venturi effect, in the process that water flow is ejected out through the second nozzle hole 26 and the first nozzle hole 24, air in the air collecting cavity 25 can be sucked into a water column through the gap 200 between the two, so that bubbles are entrained in the jet flow, and the bubbles are broken on the surfaces of dishes or fruits and vegetables, so that the dirt stripping force can be improved, and the cleaning effect is improved; and, through adding the gas into the efflux from the mode of breathing in, need not to set up air pump etc. but greatly reduced manufacturing cost.

As shown in fig. 1 and 4, the power take-off shaft 311 of the present embodiment is further connected with a second check valve 7 that allows only steam to flow into the air guide passage 310. Set up this second check valve 7, when steam generator 4 inputs steam to air guide channel 310, can avoid steam excessive, at the steam generator 4 stop to the washing in-process of air guide channel 310 transport steam, be convenient for add the air through this second check valve 7, air guide channel 310 in to the injection rivers to utilize cavitation to improve the cleaning performance.

In the present embodiment, as shown in fig. 4, the spray arm 2 is provided with a transmission mechanism 8 which can disengage the spray arm 2 from the power output shaft 311 in a state where the power output shaft 311 is rotating in the normal direction, and can rotate the spray arm 2 with the power output shaft 311 in a state where the power output shaft 311 is rotating in the reverse direction. This structure can make spray arm 2 rotate at the steam delivery stage, under the condition that does not utilize the rivers viscous force that the impeller rotation produced to stir spun steam, improve steam diffusion efficiency and homogeneity.

The spray arm 2 is provided with a mounting hole 27 for the power output shaft 311 to pass through and extend into the gas collection cavity 25, the mounting hole 27 is arranged on the top wall of the water collection cavity 22, and a one-way bearing is arranged between the inner wall of the mounting hole 27 and the outer wall of the power output shaft 311 and forms the transmission structure 8. The one-way bearing is simple in structure, convenient to assemble, small in occupied space after assembly, good in use stability, convenient to allow the spray arm to rotate in a steam conveying state, capable of improving steam diffusion efficiency and uniformity and capable of avoiding interference caused by rotation between the one-way bearing and the spray arm in a water washing stage.

As shown in fig. 4, the top of the impeller 32 of the present embodiment has an end cover 321, the end cover 321 is gradually recessed downward from the edge to the central portion to form a recessed area 322, the recessed area 322 is arranged corresponding to the mounting hole 27, the top wall of the water collecting chamber 25 is provided with a mounting bin 28 arranged around the mounting hole 27 and partially extending into the recessed area 322 in a vertically-recessed manner, and the one-way bearing is arranged in the mounting bin 28. By adopting the structure of the impeller 32, when the impeller 32 rotates, negative pressure is generated in the water collecting cavity 25 to be beneficial to improving the water flow drawing effect, but in the cleaning process, large bubbles are easily gathered between the sunken area 322 of the end cover 321 and the top wall of the water collecting cavity 25, and the actual lift of the pump is seriously influenced; the mounting bin 28 is sunk to the recessed area 322, so that a mounting space is provided for the one-way bearing, the collected bubbles can be extruded to the edge and further discharged through the flow channel 21, the bubbles are favorably prevented from being collected and expanded at the position, and the influence on the lift of the water pumping mechanism is reduced.

In the present embodiment, as shown in fig. 9 and 10, a water outlet 16 is formed at the bottom wall of the housing 1 and arranged corresponding to the lower port of the slag collecting basket, a water drainage assembly 160 is installed below the housing 1, the water drainage assembly 160 includes a valve housing 161 connected to the water outlet 16, and the second steam outlet 402 of the steam generator 4 is communicated with the valve housing 161. The bottom of the drainage assembly 160 is also connected with a forced drainage pump 162 to realize no residual drainage. In order to facilitate the delivery of steam, the second steam output end 402 of the steam generator 4 is in communication with the valve housing 161 via an air duct 163, and the air duct 163 is provided with a first one-way valve 164 that only allows fluid to flow from the steam generator 4 into the valve housing 161. The valve casing 161 includes a first portion 1611 extending vertically corresponding to the water outlet 16 and a second portion 1612 curved in an arc shape from the lower end of the first portion 1611, the water discharge assembly 160 further includes a valve core 165 telescopically mounted at the lower end of the second portion 1612 to open and close the second portion 1612, and the air outlet end of the air duct 163 is connected with the arched side of the second portion 1612. The structure can basically realize that the inlet position of the steam is the lowest position of the water flow system of the cleaning machine, is beneficial to eliminating dead angles of drying and disinfection and improves the drying and disinfection effects; moreover, the air outlet end of the air duct 163 is connected to the arched side of the second portion 1612, which is beneficial to guiding the steam upwards by utilizing the structure of the second portion 1612.

The valve housing 161 is provided with a humidity sensor 100 for detecting humidity, and the humidity sensor 100 is provided on a horizontal surface of the bottom of the first portion 1611. Humidity size direct reaction drainage assembly 160 department is whether easy to breed the bacterium, judges the degree of drying of drainage assembly department through above-mentioned humidity transducer 100 to whether the output steam of control steam generator 4 second steam output 402 is convenient for control.

As shown in fig. 11 and 12, the slag collecting basket 5 of the present embodiment includes a vertically through main body 51 and a flow guiding sleeve 52 disposed in the main body 51, the flow guiding sleeve 52 includes a cylinder 521 sleeved in the main body 51, a first flow guiding plate 522 extending from bottom to top to the inner wall of the main body 51 is disposed on the top edge of the cylinder 521, the outer edge of the first flow guiding plate 522 is substantially flush with the upper surface of the filter screen 12, and a second flow guiding plate 523 capable of covering the upper port of the cylinder 521 and communicating with the inner cavity of the cylinder 521 is disposed above the cylinder 521. The first guide plate 522 and the second guide plate 523 can guide water flow downwards to enter the slag collecting basket 5, and the barrel 521 can lock residues at the lower part of the main body part 51 to avoid overflow, so that the effects of collecting and locking the residues are improved. For convenience of installation and assembly, the upper end of the cylinder 521 is provided with a support arm 524 extending upward, and the second baffle 523 is provided at the upper end of the support arm 524.

The first baffle 522 and the second baffle 523 form a slow flow structure 520 capable of blocking the rising steam. When the steam diffuses upwards from the valve casing 161, the flow slowing structure 520 can delay the delivery speed of the steam, prolong the contact time of the steam and the slag collecting basket 5, and improve the disinfection effect on the slag collecting basket 5.

In this embodiment, the cleaning method using the above cleaning machine includes the following steps:

(1) steam prewashing stage:

water is fed into the box body 1 and the steam generator 4, and the water level of the water fed into the box body 1 is lower than the top wall of the spray arm 2;

the steam generator 4 is opened, steam generated by the steam generator 4 is conveyed into the spray arm 2 through the first steam output end 401 and the air guide channel 310 of the power output shaft 311 on the water pumping mechanism 3, the power output shaft 311 of the water pumping mechanism 3 rotates reversely, the spray arm 2 is driven to rotate reversely through the transmission mechanism 8, the steam is rapidly diffused in the box body 1 from bottom to top under the stirring of the spray arm 2, the steam diffused upwards through the spray arm 2 meets low-temperature pollutants on the surface of tableware, the low-temperature pollutants are heated and expanded in an accelerated manner, and meanwhile, part of steam is precooled to form condensate water to infiltrate and further expand the low-temperature pollutants in an accelerated manner; the steam simultaneously preheats the water for washing in the box body 1;

(2) and (3) a water washing stage:

the steam generator 4 is closed, the water pumping mechanism 3 is started, the power output shaft 311 of the water pumping mechanism 3 rotates forwards, water is pumped into the spray arm 2, the spray arm 2 is driven to rotate forwards, and dishes are washed with water; in the washing process, because negative pressure is generated at the gap 200, gas is input into the jet water flow through the second one-way valve 7, the gas guide channel 310 of the power output shaft 311 and the gas collecting cavity 25, so that bubbles are entrained in the jet water flow, and the stripping degree of dirt on the surfaces of dishes is improved by utilizing cavitation; after the water washing is finished, the water pumping mechanism 3 is closed, and water is discharged;

(3) and (3) drying and disinfecting:

the steam generator 4 is opened, steam generated by the steam generator 4 is input into the valve shell 161 through the second steam output end 402 and the first one-way valve 164, and the steam passes through the filter screen plate 12 to continuously diffuse upwards after carrying out high-temperature disinfection and drying on the slag collection basket 5 and the backwater area 11 from bottom to top; when the humidity sensor 100 detects that the humidity is greater than the set value, the steam output at the second steam output 402 is maintained, and when the humidity sensor 100 detects that the humidity is less than or equal to the set value, the steam output at the second steam output 402 is stopped; and finally, starting the exhaust assembly 9 to exhaust the steam in the box body 1, and quickly drying the interior of the box body 1 under the preheating action.

Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the utility model, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims (17)

1. The utility model provides a cleaning machine, includes box (1), spray arm (2), pump water mechanism (3) and collection sediment basket (5), box (1) bottom is provided with recessed return water region (11), and the top in this return water region (11) covers has filter plate (12), the top of filter plate is located to the spray arm, pump water mechanism (3) are located box (1) bottom and are arranged in with the water pump in return water region to spray arm (2), power output shaft (311) of pump water mechanism (3) pass box (1) and stretch into in spray arm (2), collection sediment basket (5) holding is in return water region (11) and the last port exposes out on filter plate (12), its characterized in that: the slag collecting device is characterized by further comprising a steam generator (4), an air guide channel (310) is formed in the hollow power output shaft (311), a first steam output end (401) of the steam generator (4) is communicated with the air guide channel (310), and a second steam output end (402) of the steam generator (4) is communicated with the water return area (11) and/or the slag collecting basket (5).

2. The washing machine as claimed in claim 1, wherein: the slag collecting device is characterized in that a water outlet (16) which is arranged corresponding to a lower port of the slag collecting basket (5) is formed in the bottom wall of the box body (1), a water discharging assembly (160) is installed below the box body (1), the water discharging assembly (160) comprises a valve shell (161) connected with the water outlet (16), and a second steam output end (402) of the steam generator (4) is communicated with the valve shell (161).

3. The washing machine as claimed in claim 2, wherein: the second steam output end (402) of the steam generator (4) is communicated with the valve shell (161) through an air guide pipe (163), and a first one-way valve (164) which only allows fluid to flow from the steam generator (4) into the valve shell (161) is arranged on the air guide pipe (163).

4. The cleaning machine of claim 3, wherein: valve casing (161) are including corresponding the first part (1611) of water discharge opening (16) vertical extension and from this first part (1611) lower extreme be curved second part (1612), thereby drainage subassembly (160) still include can install in the lower extreme of second part (1612) telescopically and open and close valve core (165) to it, the end of giving vent to anger of air duct (163) is connected with the hunch-up side of second part (1612).

5. The cleaning machine of claim 2, wherein: a humidity sensor (100) capable of detecting humidity is arranged in the valve casing (161).

6. The cleaning machine of claim 2, wherein: the slag collecting basket (5) comprises a main body part (51) which is through up and down and a flow guide sleeve (52) arranged in the main body part (51), the flow guide sleeve (52) comprises a barrel body (521) sleeved in the main body part (51), a first flow guide plate (522) which extends to the inner wall of the main body part (51) from bottom to top is arranged on the top edge of the barrel body (521), and a second flow guide plate (523) which can cover an upper port of the barrel body (521) and is communicated with the inner cavity of the barrel body (521) is arranged above the barrel body (521).

7. The cleaning machine of claim 6, wherein: the upper end of the cylinder body (521) is provided with a supporting arm (524) extending upwards, and the second guide plate (523) is arranged at the upper end of the supporting arm (524).

8. The cleaning machine of claim 6, wherein: the first guide plate (522) and the second guide plate (523) jointly form a slow flow structure (520) capable of blocking rising steam.

9. The washing machine as claimed in claim 1, wherein: the top wall of the spray arm (2) is provided with a first spray hole (24), the spray arm (2) is provided with a gas collection cavity (25) which is positioned at the upstream of the first spray hole (24) and used for conveying gas to the direction of the first spray hole (24) along the flowing direction of the fluid, and the upper port of the power output shaft (311) is communicated with the gas collection cavity (25).

10. The cleaning machine of claim 9, wherein: the spraying arm (2) is provided with a transmission structure (8) which can enable the spraying arm (2) to be separated from the power output shaft (311) under the state that the power output shaft (311) rotates forwards and enable the spraying arm (2) to rotate along with the power output shaft (311) under the state that the power output shaft (311) rotates backwards.

11. The cleaning machine of claim 10, wherein: the spraying arm (2) is provided with a mounting hole (27) for a power output shaft (311) to penetrate through and extend into the gas collecting cavity (25), a one-way bearing is arranged between the inner wall of the mounting hole (27) and the outer wall of the power output shaft (311), and the one-way bearing forms the transmission structure (8).

12. The cleaning machine of claim 11, wherein: the water pump is characterized in that a water inlet (23) is formed in the bottom wall of the spray arm (2), the spray arm (2) is provided with a water collecting cavity (22) communicated with the water inlet (23), the mounting hole (27) is formed in the top wall of the water collecting cavity (22), the water pumping mechanism (3) further comprises an impeller (32), and at least the upper portion of the impeller (32) can be rotatably located in the water collecting cavity (22) and is connected with the power output shaft (311).

13. The cleaning machine of claim 12, wherein: the top of the impeller (32) is provided with an end cover (321), the end cover (321) is gradually recessed downwards from the edge to the central part to form a recessed area (322), the recessed area (322) is arranged corresponding to the mounting hole (27), the top wall of the water collecting cavity (22) is provided with an installation bin (28) which is arranged around the mounting hole (27) and partially extends into the recessed area (322) in a vertically-sinking manner, and the one-way bearing is arranged in the installation bin (28).

14. The cleaning machine of claim 9, wherein: the spray arm (2) comprises a body (2a) and a top plate (2b) arranged above the body (2a), the body (2a) is provided with a flow channel (21) extending along the length direction of the body (2a), the top plate (2b) and the top wall of the body (2a) jointly enclose a gas collection cavity (25), the top wall of the body (2a) is provided with a second spray hole (26) communicated with the flow channel (21) and located in the gas collection cavity (25), the first spray hole (24) is arranged on the top plate (2b) and corresponds to the second spray hole (26), and a gap (200) is formed between the first spray hole (24) and the second spray hole (26).

15. The cleaning machine of any one of claims 1-14, wherein: the power output shaft (311) is also connected with a second one-way valve (7) which only allows steam to flow to the air guide channel (310).

16. The cleaning machine of any one of claims 1-14, wherein: the air exhaust device is characterized in that an air exhaust port (15) is formed in the side wall of the box body (1), and an air exhaust assembly (9) capable of exhausting air in the box body (1) through the air exhaust port (15) is arranged on the outer wall of the box body (1).

17. The cleaning machine of any one of claims 1-14, wherein: and the steam generator (4) is provided with control valves which are respectively used for controlling the opening or the closing of the first steam output end (401) and the second steam output end (402).

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