A jetting pipeline and a cleaning machine integrating cleaning and drying functions

Abstract

The present invention relates to a jet pipe and a cleaning machine integrating cleaning and drying functions. The jet pipe extends vertically, and a water channel and an air channel extending axially and relatively independently are arranged in the jet pipe. A fluid outlet connected to the water channel and the air channel fluid is opened on the outer peripheral wall of the jet pipe. On the basis of retaining the bottom spray arm, a vertically extending jet pipe is arranged in the middle of the washing chamber. In the cleaning state, part of the water in the spray arm is sprayed upward through the spray arm, and part of the water is transported upward to the jet pipe and sprayed outward from the middle of the washing chamber, which makes up for the problem that the force of the water column sprayed upward by the existing bottom spray arm is smaller, which is conducive to improving the cleaning effect. After washing and entering the drying state, the outside air is transported downward through the door body and the upper end of the jet pipe, and the gas is sprayed from the central part of the washing chamber to the edge through the vertical jet pipe, which is conducive to improving the gas diffusion effect, eliminating the drying dead corner, and improving the drying effect.

Description

Technical Field

[0001] The invention relates to the technical field of dishwashers, and in particular to a spray pipe and a washing machine integrating washing and drying functions. Background Art

[0002] As people's living standards continue to improve, dishwashers, as a kitchen appliance, are increasingly entering households. Dishwashers on the market are generally divided into three types: tabletop, cabinet, and tank. Among them, tabletop dishwashers are integrated independent structures and are generally placed on the table for use; cabinet dishwashers are also independent structures, but need to be embedded in kitchen cabinets for use; tank dishwashers are combined with sinks and are generally installed in kitchen cabinets for use.

[0003] At present, the structure of the relatively mature water tank type cleaning machine on the market is mainly as described in the Chinese patent "Water Tank Type Cleaning Machine" (application number: CN201310750968.1) with the authorization announcement number CN104224074B, that is, it includes a box body forming a washing space, the box body includes a water tank body and a cover plate rotatably connected to the water tank body, the bottom of the water tank body has a concave drain area at least in the central part, and the drain area is provided with a water pump that pumps the water in the drain area out to the washing space above the drain area, the drain area is covered with a drain plate with drain holes, and a rotating spray arm connected to the water pump fluid and having a water outlet hole is arranged above the drain plate. By setting a drain area covered with a drain plate and setting the water pump in the drain area, the water pump is isolated from the washing area, so that the water flowing back into the water pump is first filtered by the drain plate.

[0004] The main cleaning method of the above-mentioned dishwasher is the bottom-up spraying of the bottom spray arm. Although the spray water column can cover the main cleaning area as the spray arm rotates, there will inevitably be a problem of gradually decreasing cleaning efficiency from bottom to top, resulting in poor cleaning effect on the dishes on the top.

[0005] The structure for drying dishes in the above-mentioned dishwasher mainly utilizes a fan to blow air directly into the tank and then blow it out, relying on the wind speed to achieve convection diffusion under natural conditions, which results in uneven distribution of airflow in the tank and poor drying effect. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a spray pipe integrating cleaning and drying functions in view of the current status of the prior art, which can eliminate the drying dead corners of the cleaning machine and improve the cleaning and drying effects.

[0007] The technical solution adopted by the present invention to solve the above technical problems is:

[0008] A jet pipe integrating cleaning and drying functions, the jet pipe extends vertically, and is provided with a water guide channel and an air guide channel extending axially and relatively independently, and a fluid output port connected to the water guide channel and the air guide channel fluid is opened on the outer peripheral wall of the jet pipe; the upper end of the water guide channel is a blind end, and the lower end is a lower open port for input; the upper end of the jet pipe has an air inlet opening for gas to enter the air guide channel.

[0009] In the present invention, the water-conducting channel includes a first sub-channel and a second sub-channel connected to each other from bottom to top, the lower port of the first sub-channel forms the lower opening of the water-conducting channel, the upper end of the first sub-channel is provided with a liquid outlet extending radially, the lower end of the second sub-channel is provided with a liquid-conducting tube section extending downward and capable of being inserted into the first sub-channel, the liquid-conducting tube section and the liquid outlet together constitute a diversion structure capable of diverting water in the first sub-channel in radial and axial directions, and the upper end of the second sub-channel is also provided with the liquid outlet.

[0010] Preferably, there are at least two liquid outlets on the first sub-channel / second sub-channel and they are arranged at intervals in the radial direction of the injection pipe, the lower end of the liquid guide tube section is located below the liquid guide outlet, the gap between the outer circumferential wall of the liquid guide tube section and the inner circumferential wall of the first sub-channel forms a radial diversion channel, and the inner side of the liquid guide tube section forms an axial diversion channel.

[0011] Preferably, a first arc-shaped guide surface is formed between the lower wall surface of the liquid outlet at the top of the first sub-channel and the inner wall surface of the first sub-channel, and a second arc-shaped guide surface is formed between the upper end of the outer wall surface of the liquid guide tube section and the upper wall surface of the liquid outlet, and the curvature of the second guide surface is smaller than that of the first guide surface.

[0012] Preferably, the water-conducting channel further comprises at least two sub-channels having the same structure as the second sub-channel, each sub-channel being connected with the second sub-channel and the first sub-channel in sequence in the axial direction, and the connection structure between each sub-channel is the same as the connection structure between the upper end of the first sub-channel and the lower end of the second sub-channel.

[0013] Preferably, the top blind end of the water-guiding channel is provided with a guide pipe section extending downward and inserted in the corresponding sub-channel, the lower end of the guide pipe section is located below the corresponding liquid outlet, the guide pipe section forms a radial fluid buffer section, and a radial fluid outlet section is formed between the outer circumferential wall of the guide pipe section and the inner circumferential wall of the sub-channel.

[0014] Preferably, a bowl-shaped flow guiding section is formed between the upper end of the flow guiding tube section and the sub-channel above it; and / or a bowl-shaped buffer section is formed at the upper end of the flow guiding tube section.

[0015] Preferably, the fluid outlet is opened on the outer peripheral wall of the injection pipe and extends in the circumferential direction, and the outer end of the liquid outlet is connected to the fluid outlet.

[0016] Preferably, the air guiding channel is arranged at the periphery of the water guiding channel, there are at least two air guiding channels and they are arranged at intervals from the liquid outlet, and an air outlet connected to the fluid outlet is opened on the outer side of the air guiding channel.

[0017] Preferably, an inwardly arched partition is provided on the inner circumferential wall of the air guide channel at the corresponding fluid outlet, and the partition and the corresponding inner circumferential wall of the air guide channel together enclose a gas guide cavity with an open top and a closed bottom, and the inner end of the air outlet is connected to the gas guide cavity, and the outer end is connected to the fluid outlet.

[0018] Preferably, there are at least two gas outlets, and the inner diameters of the gas outlets gradually decrease along the gas output direction.

[0019] A cleaning machine using the above-mentioned spray pipe includes a box body, a spray arm and a door body, the box body is hollow inside to form a washing chamber, the spray arm is arranged at the bottom of the washing chamber, the door body is arranged at the top of the box body and is used to open or close the top opening of the washing chamber, the spray pipe is vertically arranged in the central part of the washing chamber, the top wall of the spray arm is provided with a water outlet opening, and the lower opening of the water guide channel is relatively connected to the water outlet opening of the spray arm; the top wall of the door body is provided with an air guide port connected to the outside gas, when the door is closed, the air inlet opening at the upper end of the spray pipe is connected to the air guide port, and when the door is open, the air inlet opening at the upper end of the spray pipe is disconnected from the air guide port.

[0020] In the present invention, there is a gap between the lower end of the spray pipe and the upper wall of the spray arm, and the lower port of the air guide channel is located on the lower wall of the spray pipe and arranged corresponding to the upper wall of the spray arm.

[0021] Preferably, a peripheral edge arranged around the periphery of the injection pipe is provided on the upper wall surface of the spray arm, there is a gap between the peripheral wall of the injection pipe and the peripheral edge, and the peripheral wall of the injection pipe close to the peripheral edge forms a gas guide surface inclined outward from bottom to top.

[0022] In the present invention, when the door body is in a closed state, the air inlet opening is arranged vertically, and a power component capable of guiding external air to the air inlet opening is installed in the door body.

[0023] Preferably, an overflow structure with a tip facing downward is provided in the air inlet opening, and the overflow structure includes at least two guide vanes extending vertically along the air inlet opening, and the width of the guide vanes gradually decreases from the outside to the inside along the radial direction of the air inlet opening, and the guide tip of the lower part of the guide vane gradually tilts downward from the inner wall of the air inlet opening to the center.

[0024] Compared with the prior art, the advantages of the present invention are: the injection pipe of the present invention is vertically arranged in the central part of the cleaning machine, and on the basis of retaining the bottom spray arm, in the cleaning state, part of the water in the spray arm is sprayed upward through the spray arm, and the other part of the water is transported upward to the injection pipe and sprayed outward from the middle of the washing chamber, thereby compensating for the problem that the force of the water column sprayed by the existing bottom spray arm becomes weaker as it goes up, which is beneficial to improving the cleaning effect; when washing is completed and entering the drying state, the outside air is transported downward through the door body and the upper end of the injection pipe, and the gas is sprayed from the central part of the washing chamber to the edge through the vertical injection pipe, which is beneficial to improving the gas diffusion effect, eliminating the drying dead corners, and improving the drying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the structure of an embodiment of the present invention (door open state);

[0026] Figure 2 Schematic diagram of the structure of an embodiment of the present invention (door closed state);

[0027] Figure 3 for Figure 2 A cross-sectional view of

[0028] Figure 4 for Figure 3 A magnified view of part A;

[0029] Figure 5 for Figure 3 A magnified view of part B;

[0030] Figure 6 It is a cross-sectional view of the bowl basket and the auxiliary integrated structure in an embodiment of the present invention;

[0031] Figure 7 for Figure 6 Enlarged view of part C;

[0032] Figure 8 for Figure 6 A magnified view of part D in the middle;

[0033] Fig. 9 Another cross-sectional view of the bowl, basket and auxiliary integrated structure in an embodiment of the present invention;

[0034] Fig.10 for Fig. 9 Enlarged view of part E in the middle;

[0035] Fig.11 for Fig. 9 Enlarged view of part F;

[0036] Fig.12 is a cross-sectional view of an injection pipeline in an embodiment of the present invention;

[0037] Fig.13 is another cross-sectional view of the injection pipeline in the embodiment of the present invention;

[0038] Fig.14 is a schematic structural diagram of a first impeller in an embodiment of the present invention;

[0039] Fig.15 for Fig.14 A cross-sectional view of

[0040] Fig.16 for Fig.14 Another cross-sectional view of

[0041] Fig.17 for Fig.16 A partial enlarged view of

[0042] Fig.18 It is a cross-sectional view of the bottom of the washing machine and the dish rack according to an embodiment of the present invention;

[0043] Fig.19 for Fig. 9 Enlarged view of section G;

[0044] Fig. 20 Schematic diagram of the structure of the first nozzle in an embodiment of the present invention;

[0045] Fig.21 is a schematic structural diagram of a second nozzle in an embodiment of the present invention;

[0046] Fig. 22 is a schematic structural diagram of a second impeller in an embodiment of the present invention;

[0047] Fig.23 for Fig. 22 A cross-sectional view of

[0048] Fig.24 is a schematic structural diagram of a third impeller in an embodiment of the present invention;

[0049] Fig.25 for Fig.24 Schematic diagram of the bottom structure;

[0050] Fig.26 for Fig.24 sectional view of . DETAILED DESCRIPTION

[0051] The present invention is further described in detail below with reference to the accompanying drawings.

[0052] like Figures 1 to 26As shown, the washing machine of this embodiment includes a housing 1, a spray arm 2, a bowl basket 3, a door 4 and a spray pipe 5. The interior of the housing 1 is hollow to form a washing chamber 10. The spray arm 2 is rotatably arranged at the bottom of the washing chamber 10. A guide seat for supporting the spray arm 2 is arranged at the bottom of the washing chamber 10. The door 4 is arranged at the top of the housing 1 and is used to open or close the top opening of the washing chamber 10. The bowl basket 3 is placed in the washing chamber 10 and is located above the spray arm 2 for placing dishes. The spray arm 2 sprays water upward to flush and wash the dishes in the bowl basket 3.

[0053] The spray pipe 5 of this embodiment is vertically arranged in the central part of the washing chamber 10. The spray pipe 5 is integrally formed with the bowl basket 3 through a support bar, or the spray pipe 5 and the bowl basket 3 are detachably connected through a structure such as a buckle.

[0054] like Figures 3 to 13 As shown, the injection pipe 5 is provided with a relatively independent water channel 51 and an air channel 52 extending in the axial direction, and a fluid outlet 53 in fluid communication with the water channel 51 and the air channel 52 is opened on the outer peripheral wall of the injection pipe 5. Figure 5 As shown, a water outlet opening 21 is provided on the top wall of the spray arm 2, the upper end of the water guide channel 51 is a blind end, and the lower end is a lower open opening 510 connected to the water outlet opening 21 of the spray arm 2. An air guide port 41 connected to the outside gas is provided on the inner top wall of the door body 4, and an air inlet opening 521 connected to the air guide channel 52 is provided on the upper end of the spray pipe 5. In the closed state, the air guide port 41 and the air inlet opening 521 are connected to each other, and in the open state, the air guide port 41 and the air inlet opening 521 are disconnected from each other. Therefore, the spray pipe 5 can be supplied with air in the closed state, but cannot be supplied with air in the open state.

[0055] like Figure 6 As shown, the water-conducting channel 51 comprises a first sub-channel 511 and a second sub-channel 512 which are connected to each other from bottom to top. The lower port of the first sub-channel 511 forms a lower opening 510 of the water-conducting channel 51. The upper end of the first sub-channel 511 is provided with a liquid outlet 5111 extending radially, and the lower end of the second sub-channel 512 is provided with a liquid-conducting tube section 5121 extending downward and capable of being inserted into the first sub-channel 511. The liquid-conducting tube section 5121 and the liquid outlet 5111 together constitute a diversion structure capable of diverting the water in the first sub-channel 51 in the radial and axial directions. The upper end of the second sub-channel 512 is also provided with a liquid outlet 5111.

[0056] like Figure 7As shown, there are four liquid outlets 5111 on the first sub-channel 511 and the second sub-channel 512 respectively. The four liquid outlets 5111 are arranged in a cross shape in the radial direction of the injection pipe 5. The lower end of the liquid guide tube section 5121 is located below the corresponding liquid outlet 5111. The gap between the outer circumferential wall of the liquid guide tube section 5121 and the inner circumferential wall of the first sub-channel 511 forms a radial diversion channel 5101, and the inner side of the liquid guide tube section 5121 forms an axial diversion channel 5102.

[0057] The above structure can realize radial and axial flow division of liquid, and guide the two divided liquids to avoid large capacity loss caused by liquid flow disturbance at the flow division point.

[0058] A first curved guide surface 5112 is formed between the lower wall surface of the liquid outlet 5111 at the top of the first sub-channel 511 and the inner wall surface of the first sub-channel 511, and a second curved guide surface 5122 is formed between the upper end of the outer wall surface of the liquid guide tube section 5121 and the upper wall surface of the liquid outlet 5111, and the curvature of the second guide surface 5122 is smaller than that of the first guide surface 5112. This structure is conducive to further reducing the energy loss of the radially diverted liquid during output, so that the radially sprayed water flow maintains a large impact force, thereby improving the cleaning effect. A bowl-shaped guide section 5123 is formed between the upper end of the liquid guide tube section 5121 and the sub-channel 513 above it. This structure is conducive to reducing the energy loss of the axially diverted liquid.

[0059] In this embodiment, the water channel 51 also includes three sections of sub-channels 513 with the same structure as the second sub-channel 512. Each sub-channel 513 is connected with the second sub-channel 512 and the first sub-channel 511 in sequence in the axial direction, and the connection structure between each sub-channel 513 is the same as the connection structure between the upper end of the first sub-channel 511 and the lower end of the second sub-channel 512. It can also be considered that in this embodiment, four sections of second sub-channels 512 connected in sequence are arranged above the first sub-channel 511. A group of fluid outlets 53 are opened between the two sub-channels, and a group of fluid outlets 53 are opened in the water channel 51. In this embodiment, a total of 5 groups of fluid outlets 53 are opened on the injection pipe 5, and are arranged in sequence from bottom to top. Therefore, horizontal water flow injection is performed at different heights to expand the injection range, eliminate cleaning dead corners, and further improve the cleaning effect.

[0060] like Figure 8As shown, the top blind end of the water-guiding channel 51 is provided with a guide pipe section 514 extending downward and inserted in the corresponding sub-channel 513, the lower end of the guide pipe section 514 is located below the corresponding liquid outlet 5111, the guide pipe section 514 forms a radial fluid buffer section, and the upper end of the guide pipe section 514 is formed with a bowl-shaped buffer section 5141; a radial fluid outlet section is formed between the outer peripheral wall of the guide pipe section 514 and the inner peripheral wall of the sub-channel 513.

[0061] The fluid outlet 53 of the present embodiment is disposed on the outer peripheral wall of the injection pipe 5 and extends in the circumferential direction to form a ring shape. The outer end of the liquid outlet 5111 is communicated with the fluid outlet 53 .

[0062] like Figures 11 to 13 As shown, the air guide channel 52 is arranged at the periphery of the water guide channel 51, and there are four air guide channels 52, which are arranged alternately with the liquid outlets 5111 in the circumferential direction. An air outlet 522 connected to the fluid outlet 53 is opened on the outer side of the air guide channel 52. The liquid outlet 5111 and the air outlet 522 are arranged at intervals in the circumferential direction to prevent liquid from entering the air guide channel 52.

[0063] An inwardly arched partition 523 is provided on the inner peripheral wall of the air guide channel 52 at the corresponding fluid output port 53, and the partition 523 and the corresponding inner peripheral wall of the air guide channel 52 jointly enclose a gas guide cavity 524 with an open top and a closed bottom. The inner end of the gas outlet 522 is connected to the gas guide cavity 524, and the outer end is connected to the fluid output port 53. The gas guide cavity 524 is provided so that gas can only enter the gas guide cavity 524 from top to bottom and then be output through the gas outlet 522 and the fluid output port 53, so that the gas passage is more clearly separated from the bottom-up liquid passage, and the water in the water guide channel 51 is prevented from flowing back into the air guide pipe 52 when being output to the fluid output port 53.

[0064] Each gas flow chamber 524 has three groups of gas outlets 522 , and the inner diameter of each gas outlet 522 gradually decreases along the gas output direction. This structure can not only increase the gas output pressure and improve the gas diffusion speed, but also further prevent liquid from flowing into the gas guide pipe 52 .

[0065] In this embodiment, the fluid outlet 53 is provided on the outer peripheral wall of the injection pipe 5 and extends in the circumferential direction. A first impeller 100 is provided at the fluid outlet 53, which can rotate with the fluid injection to perform spiral diffusion of the fluid. The first impeller 100 can not only expand the injection range of the liquid, but also help to expand the injection uniformity of the gas.

[0066] The first impeller 100 includes an upper cover plate 101, a lower cover plate 102 and a first blade 103. The upper cover plate 101 and the lower cover plate 102 are arranged at intervals in the upper and lower directions. The first blade 103 is multiple and arranged at intervals in the circumferential direction between the upper cover plate 101 and the lower cover plate 12. The distance between the upper cover plate 101 and the lower cover plate 102 gradually increases radially from the inside to the outside, thereby forming a gradually expanding fluid flow channel 104. The upper cover plate 101 and the lower cover plate 102 are both annular, and the lower wall surface of the upper cover plate 101 gradually tilts upward radially from the inside to the outside, and the upper wall surface of the lower cover plate 102 gradually tilts downward radially from the inside to the outside. The gradually expanding fluid flow channel 104 can make the outlet water spray out in a gradually expanding water curtain, which is conducive to expanding the cleaning range and eliminating cleaning dead corners.

[0067] The first impeller 100 further includes a middle partition 105, which is disposed between the upper cover plate 101 and the lower cover plate 102 and is used to separate the gradually divergent fluid flow channel 104 into two relatively independent upper and lower parts. The middle partition 105 is conducive to guiding the fluid passing through the gradually divergent fluid flow channel 104, so that the fluid maintains a relatively high injection speed.

[0068] The first blade 103 is gradually inclined from the inner end to the outer end along the circumference of the first impeller 100, the inner end of the first blade 103 is flush with the inner edges of the upper cover plate 101 and the lower cover plate 102, and the outer end of the first blade 103 extends to the outer side of the upper cover plate 101 and the lower cover plate 102. The first blade 103 includes a first inclined section 1031 and a second inclined section 1032 connected to each other in the radial direction, and the inclination of the second inclined section 1032 relative to the inner edge of the first impeller 100 is greater than the inclination of the first inclined section 1031. The above structure is conducive to cooperating with the jet water flow to provide the first impeller 100 with power for circumferential rotation.

[0069] In this embodiment, if Fig.18 As shown, the box body 1 is square and has four corners. Four guide pipes 31 extending from the center to the corners of the box body 1 are provided at the bottom of the bowl basket 3. The first end of the guide pipe 31 is connected to the water guide channel 51, and the second end is used to flush the bottom of the box body 1. The lower end of the air guide channel 52 is connected to one of the guide pipes 31.

[0070] A drainage port 11 is provided at the bottom of the box body 1 near the first corner, and a slag collecting basket 12 is provided at the drainage port 11. The length of one of the guide tubes 31 at the bottom of the bowl basket 3 is shorter than that of the other guide tubes, and the end of the shorter guide tube 31 is arranged corresponding to the slag collecting basket 12. With the above structure, the bottom structure of the bowl basket 3 is used to form a mode of three diagonal flushing of the bottom wall of the box body and one flushing of the slag collecting basket, which is conducive to preventing the accumulation of residues at the corners of the box body 1, improving the slag collecting effect, and keeping the bottom wall of the box body clean.

[0071] The end of the guide pipe 31 arranged corresponding to the slag collection basket 12 is connected to a first nozzle 13 capable of spraying fluid from top to bottom on the slag collection basket 12, and the end of the guide pipe 31 arranged corresponding to the other three corners of the box body 1 is connected to a second nozzle 14 capable of obliquely flushing the bottom of the box body 1 from outside to inside. Such a structure is adopted to further improve the cleanliness of the bottom of the box body and the slag collection effect.

[0072] like Fig. 20 As shown, the first nozzle 13 includes a diverter chamber 131 located in the center, and the bottom of the diverter chamber 131 is connected to a first spraying pipe 132 that can spray corresponding to the center of the slag collecting basket 12. The outer periphery of the diverter chamber 131 is arranged with multiple second spraying pipes 133 extending radially and spraying corresponding to the edge of the slag collecting basket 12, and the ends of the second spraying pipes 133 form a guide portion 1331 that bends downward so that the spraying direction is inclined inward. This structure evenly rinses all parts of the slag collecting basket 12, which is conducive to cleaning the slag collecting basket 12 and keeping the slag collecting basket 12 hygienic. Fig.19 As shown, the air guide channel 52 of this embodiment is connected to the guide pipe 31 leading to the slag collecting basket 12, and is used to separately transport gas to the slag collecting basket 12 during drying to dry the slag collecting basket 12 and prevent the slag collecting basket 12 from becoming moldy or breeding bacteria due to moisture.

[0073] like Fig.21 As shown, the second nozzle 14 includes a U-shaped conduit portion 141 and a plurality of nozzle portions 142 connected to the lower side of the U-shaped structure. A connecting portion 143 connected to the corresponding guide pipe 31 is provided at the U-shaped structure corner of the conduit portion 141. In the assembled state, each nozzle portion 141 is arranged inwardly from the edge of the box body 1. This structure is conducive to guiding the flushing water flow, that is, guiding it from the corners of the box body 1 to the middle, which is conducive to further improving the slag collection effect.

[0074] In this embodiment, if Figure 5 As shown, a second impeller 200 is disposed in the water guide channel 51 and is arranged near the lower opening 510 , and is used to guide water axially from bottom to top and disperse water circumferentially into the guide pipe 31 .

[0075] like Fig. 22 , 23As shown, the second impeller 200 includes a first guide tube 201, a first guide column 202, a first axial flow blade 203 and a first centrifugal blade 204. The first guide tube 201 is connected from top to bottom. The first guide column 202 passes through the lower end of the first guide tube 201 and extends below the first guide tube 201. The first axial flow blade 203 is spirally distributed on the outer periphery of the first guide column 202 below the first guide tube 201. There are multiple first centrifugal blades 203 and they are circumferentially spaced and distributed on the outer periphery of the first guide column 202. The outer end of the first centrifugal blade 204 passes through the first guide tube 201 and extends outside the first guide tube 201 to circumferentially disperse the water flow outside the first guide tube 201. An axial first guide channel 205 is formed between the first centrifugal blades 204 located in the first guide tube 201.

[0076] The outer peripheral wall of the first guide tube 201 is provided with an arc-shaped first guide structure 206 that allows a smooth transition between two adjacent first centrifugal blades 204. The first centrifugal blades 204 in the first guide tube 201 gradually extend upward from the outer end to the inner end along the water flow direction, and the second guide structure 207 with an arc-shaped top is formed. The upper end surface of the first guide column 202 is formed into a third guide structure 208 in the shape of a U. The above structure is conducive to reducing the energy loss of the water flow.

[0077] like Figure 5 , 19 As shown, a liquid guiding cavity 515 for accommodating the first centrifugal blade 204 is provided in the water guiding channel 51, the input end of the guide pipe 31 is connected to the liquid guiding cavity 515, a guiding port 516 having an inner diameter smaller than that of the liquid guiding cavity 515 is provided at the top of the liquid guiding cavity 515, and the upper part of the first guiding cylinder 201 is arranged through the guiding port 516. The above structure is conducive to improving assembly compactness, reducing water flow energy loss, and maintaining a good water guiding effect.

[0078] like Figure 5 As shown, in this embodiment, a water inlet 22 is opened on the bottom wall of the spray arm 2 and is arranged corresponding to the water outlet opening 21. It also includes a third impeller 300 for dispersing the water in the spray arm 2 in the circumferential direction and guiding the water from the water outlet opening 21 upward to the injection pipe 5. The lower end of the third impeller 300 is arranged corresponding to the water inlet 22, and the upper end passes through the water outlet opening 21 and is arranged corresponding to the lower opening 510 of the injection pipe 5. The upper end of the third impeller 300 is connected to the lower end of the second impeller 200 and the two rotate synchronously.

[0079] like Figures 24-26As shown, the third impeller 300 includes a second guide tube 301, second centrifugal blades 302, a cover 303, a second guide column 304 and an inner guide blade 305. The lower part of the second guide tube 301 is a first direct current section 3011, and the upper part is a first conical section 3012 whose diameter gradually decreases from bottom to top. The second centrifugal blades 302 are multiple and arranged at intervals on the outer peripheral wall of the first direct current section 3011. The cover 303 covers the top of the second centrifugal blades 302. When in use, the cover 303 is arranged close to the inner top wall of the spray arm 2 to avoid the generation of vortexes.

[0080] The second guide column 304 is inserted into the second guide tube 301, and the inner guide blades 305 are multiple and arranged at intervals along the circumferential direction between the second guide tube 301 and the second guide column 304, and a second guide channel 306 for guiding water from bottom to top is constructed between two adjacent inner guide blades 305. This structure is conducive to reducing energy loss and improving water guiding effect.

[0081] The lower part of the second guide column 304 is a second direct current section 3041 corresponding to the lower part of the first direct current section 3011, and the upper part of the second guide column 304 is a second tapered section 3042 corresponding to the upper part of the first direct current section 3011 and the first tapered section 3012, and the slope of the second tapered section 3042 is smaller than the slope of the first tapered section 3012. This structure is conducive to further reducing energy loss and improving water guiding effect.

[0082] The inner guide vane 305 corresponding to the second direct flow section 3041 is a centrifugal section blade 3051 extending radially along the third impeller 300, and the inner guide vane 305 corresponding to the second conical section 3042 is an axial flow section blade 3052 twisted in an axial direction of the second guide column 304. The upper portion of the second guide cylinder 301 of this embodiment is a first conical section 3012 whose diameter gradually decreases from bottom to top, that is, the pressure of the liquid transported upward in the second guide cylinder 301 gradually increases from bottom to top, and combined with the guiding effect of the centrifugal section blade 3051, it is beneficial to further improve the power and pressure of the water flow transported upward, and it is beneficial to improve the spray cleaning effect of the injection pipeline 5.

[0083] The upper end of the second guide column 304 is provided with a connecting shaft 3043 extending upwards, and correspondingly, the first guide column 202 of the second impeller 200 is provided with an axial hole 2021 extending upwards from the bottom and cooperating with the connecting shaft 3043. Thus, the third impeller 300 and the second impeller 200 can rotate synchronously.

[0084] The top of the third impeller 300 is provided with a straight section 3013 extending upward around the periphery of the first conical section 3012, and the inner space of the straight section 3013 is used to accommodate the first axial flow blade 203 at the lower part of the second impeller 200. The upper port of the straight section 3013 is arranged corresponding to the lower port of the liquid guide cavity 515. This structure surrounds the first axial flow blade 203, which is conducive to avoiding energy loss here.

[0085] like Figure 3 As shown, an axial flow impeller 400 is provided below the spray arm 2 for drawing water from the bottom of the box body 1 into the spray arm 2 through the water inlet 22. The upper end of the axial flow impeller 400 is connected with the lower end of the third impeller 300. A driving member 6 is provided at the bottom of the box body 1, and the power output shaft is connected to the axial flow impeller 400 and the third impeller 300. The driving member 6 is a motor.

[0086] In this embodiment, if Figure 5 As shown, there is a gap 54 between the lower end of the spray pipe 5 and the upper wall of the spray arm 2, and the lower end of the air guide channel 52 is located on the lower wall of the spray pipe 5 and arranged corresponding to the upper wall of the spray arm 2. A peripheral edge 23 arranged around the outer periphery of the spray pipe 5 is provided on the upper wall of the spray arm 2, and there is a gap between the outer peripheral wall of the spray pipe 5 and the peripheral edge 23, and a gas guide surface 55 inclined from bottom to top and outward is formed corresponding to the outer peripheral wall of the spray pipe 5 close to the peripheral edge 23. This structure can guide the gas from top to bottom to the bottom of the box body 1 and make the gas bend to the periphery and diffuse upward after hitting the upper wall of the spray arm 2, which is conducive to improving the uniformity of gas diffusion and eliminating the drying dead corner.

[0087] In this embodiment, if Figure 2 , 3 As shown, when the door body 4 is closed, the air inlet opening 41 is arranged vertically, and a power component 42 capable of guiding external air to the air inlet opening 41 is installed in the door body 4. The power component 42 is an air pump or a fan.

[0088] like Figure 4 As shown, an overflow structure 43 with a tip facing downward is provided in the air inlet opening 41, and the overflow structure 43 includes four guide blades 431 extending vertically along the air inlet opening 41, and the width of the guide blades 431 gradually decreases from the outside to the inside along the radial direction of the air inlet opening 41, and the lower part of the guide blades 431 gradually tilts downward from the inner wall of the air inlet opening 41 to the center to form a guide tip 432, which guides water to the bottom of the air guide channel 52. If liquid accidentally seeps into the connection between the upper end of the injection pipe 5 and the air inlet opening 41, the overflow structure 43 can prevent water from entering the door body 4 or causing adverse effects on the driving member 42.

[0089] In this embodiment, a moisture outlet may be provided on the side wall of the box body 1 to allow the gas carrying moisture to be discharged.

[0090] When using the cleaning machine of this embodiment, in the cleaning state, part of the water in the spray arm 2 is sprayed upward through the spray arm 2, and the other part of the water is transported upward in the spray pipe 5 through the water guide channel 51 under the power of the third impeller 300 and the second impeller 200, and in the process of transportation, the first impeller 100 sprays water curtain-like from the middle of the washing chamber 10 outward, thereby compensating for the problem that the force of the water column sprayed by the existing bottom spray arm 2 is smaller as it sprays upward, which is beneficial to improving the cleaning effect; at the same time, the second impeller 200 also outputs part of the water in the spray pipe 5 through the guide pipe 31, and flushes at the three corners of the box body 1 and a slag collection basket 32 ​​in the form of three to one flushing, so as to improve the slag collection effect; after washing is completed and entering the drying state, the outside air is transported downward from the door body 4 and the upper end of the spray pipe 5 through the air guide pipe 52, and the first impeller 100 on the spray pipe 5 sprays gas from the central part of the washing chamber 10 to the edge, so that the gas is rapidly diffused, the drying dead corner is eliminated, and the drying effect is improved.

[0091] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0092] The "fluid connection" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A cleaning and drying method for a cleaning machine, the cleaning machine comprising a housing (1), a spray arm (2) and a door (4), the housing (1) being hollow inside to form a washing chamber (10), the spray arm (2) being arranged at the bottom of the washing chamber (10), and the door (4) being arranged at the top of the housing (1), characterized in that: It also comprises a vertically extending injection pipe (5), wherein the injection pipe (5) is provided with a water guide channel (51) and an air guide channel (52) extending in the axial direction and being relatively independent, and an outer peripheral wall of the injection pipe (5) is provided with a fluid output port (53) in fluid communication with the water guide channel (51) and the air guide channel (52); the upper end of the water guide channel (51) is a blind end, and the lower end is a lower open port (510) for input; the upper end of the injection pipe (5) has an air inlet opening (521) for gas to enter the air guide channel; The spray pipe (5) is arranged vertically in the central part of the washing chamber (10); a water outlet opening (21) is provided on the top wall of the spray arm (2); the lower opening (510) of the water guide channel (51) is relatively connected to the water outlet opening (21) of the spray arm (2); an air guide port (41) connected to the outside air is provided on the top wall of the door body (4); in a closed door state, an air inlet opening (521) at the upper end of the spray pipe (5) is connected to the air guide port (41); in an open door state, the air inlet opening (521) at the upper end of the spray pipe (5) is disconnected from the air guide port (41); The bottom of the bowl basket of the washing machine is provided with four guide pipes extending from the center to the corners of the box body respectively, and the water guide channel is provided with a second impeller arranged near the lower opening and used to guide water from bottom to top along the axial direction and disperse it circumferentially into the guide pipe; the bottom wall of the spray arm is provided with a water inlet arranged corresponding to the water outlet opening, and also includes a third impeller used to disperse the water in the spray arm along the circumferential direction and guide the water upward from the water outlet opening into the injection pipe, the lower end of the third impeller is arranged corresponding to the water inlet, and the upper end passes through the water outlet opening and is arranged corresponding to the lower opening of the injection pipe, the upper end of the third impeller is connected to the lower end of the second impeller, and the two rotate synchronously; In the cleaning state, part of the water in the spray arm is sprayed upward through the spray arm, and the other part of the water is transported upward in the injection pipe through the water guide channel under the power of the third impeller and the second impeller, and during the transportation process, water curtain spray is performed from the middle of the washing chamber to the outside; at the same time, the second impeller also outputs part of the water in the injection pipe through the guide pipe, and flushes the three corners of the box and a slag collection basket in the form of three to one flushing to improve the slag collection effect; after washing is completed and entering the drying state, the outside air is transported downward from the door body and the upper end of the injection pipe through the air guide pipe, and gas is sprayed from the central part of the washing chamber to the edge through the injection pipe, so that the gas can diffuse rapidly and eliminate drying dead corners.

2. The cleaning and drying method of a cleaning machine according to claim 1, characterized in that: The water-conducting channel (51) comprises a first sub-channel (511) and a second sub-channel (512) which are connected to each other from bottom to top. The lower end of the first sub-channel (511) forms a lower opening (510) of the water-conducting channel (51). The upper end of the first sub-channel (511) is provided with a liquid outlet (5111) extending radially. The lower end of the second sub-channel (512) is provided with a liquid-conducting pipe section (5121) extending downward and capable of being inserted into the first sub-channel (511). The liquid-conducting pipe section (5121) and the liquid outlet (5111) together constitute a diversion structure capable of diverting water in the first sub-channel (511) in radial and axial directions. The upper end of the second sub-channel (512) is also provided with the liquid outlet (5111).

3. The cleaning and drying method of a cleaning machine according to claim 2, characterized in that: There are at least two liquid outlets (5111) on the first sub-channel (511) and / or the second sub-channel (512), which are arranged at intervals in the radial direction of the injection pipe (5); the lower end of the liquid guide tube section (5121) is located below the liquid guide tube section (5111); the gap between the outer peripheral wall of the liquid guide tube section (5121) and the inner peripheral wall of the first sub-channel (511) forms a radial diversion channel; and the inner side of the liquid guide tube section (5121) forms an axial diversion channel.

4. The cleaning and drying method of a cleaning machine according to claim 2, characterized in that: A first curved guide surface (5112) is formed between the lower wall surface of the liquid outlet (5111) at the top of the first sub-channel (511) and the inner wall surface of the first sub-channel (511), and a second curved guide surface (5122) is formed between the upper end of the outer wall surface of the liquid guide tube section (5121) and the upper wall surface of the liquid outlet (5111), and the curvature of the second guide surface (5122) is smaller than that of the first guide surface (5112).

5. The cleaning and drying method of a cleaning machine according to claim 2, characterized in that: The water-conducting channel (51) further comprises at least two sections of sub-channels (513) having the same structure as the second sub-channel (512), each sub-channel (513) being connected in sequence with the second sub-channel (512) and the first sub-channel (511) in the axial direction, and the connection structure between each sub-channel (513) is the same as the connection structure between the upper end of the first sub-channel (511) and the lower end of the second sub-channel (512).

6. The cleaning and drying method of a cleaning machine according to claim 5, characterized in that: The top blind end of the water guiding channel (51) is provided with a guiding pipe section (514) extending downward and inserted in the corresponding sub-channel, the lower end of the guiding pipe section (514) is located below the corresponding liquid outlet (5111), the guiding pipe section (514) forms a radial fluid buffer section, and a radial fluid outlet section is formed between the outer peripheral wall of the guiding pipe section (514) and the inner peripheral wall of the sub-channel (513).

7. The cleaning and drying method of a cleaning machine according to claim 6, characterized in that: A bowl-shaped flow guiding section (5123) is formed between the upper end of the flow guiding tube section (5121) and the sub-channel (513) above it; and / or a bowl-shaped buffer section (5141) is formed at the upper end of the flow guiding tube section (514).

8. The cleaning and drying method of a cleaning machine according to any one of claims 2 to 7, characterized in that: The fluid outlet (53) is provided on the outer peripheral wall of the injection pipe (5) and extends in the circumferential direction, and the outer end of the liquid outlet (5111) is connected to the fluid outlet (53).

9. The cleaning and drying method of a cleaning machine according to claim 8, characterized in that: The air guiding channels (52) are arranged at the periphery of the water guiding channel (51), there are at least two air guiding channels (52) and they are arranged at intervals from the liquid outlet (5111), and an air outlet (522) connected to the fluid outlet (53) is formed on the outer side of the air guiding channels (52).

10. The cleaning and drying method of a cleaning machine according to claim 9, characterized in that: An inwardly arched partition (523) is provided on the inner peripheral wall of the gas guide channel (52) at a position corresponding to the fluid output port (53); the partition (523) and the corresponding inner peripheral wall of the gas guide channel (52) jointly enclose a gas guide cavity (524) with an open top and a closed bottom; the inner end of the gas outlet (522) is connected to the gas guide cavity (524), and the outer end is connected to the fluid output port (53).

11. The cleaning and drying method of a cleaning machine according to claim 10, characterized in that: There are at least two gas outlets (522), and the inner diameters of the gas outlets (522) gradually decrease along the gas output direction.

12. The cleaning and drying method of a cleaning machine according to any one of claims 1 to 7, characterized in that: There is a gap (54) between the lower end of the spray pipe (5) and the upper wall surface of the spray arm (2), and the lower end of the air guide channel (52) is located on the lower wall surface of the spray pipe (5) and is arranged corresponding to the upper wall surface of the spray arm (2).

13. The cleaning and drying method of a cleaning machine according to claim 12, characterized in that: The upper wall surface of the spray arm (2) is provided with a peripheral edge (23) arranged around the outer periphery of the spray pipe (5), a gap is provided between the outer peripheral wall of the spray pipe (5) and the peripheral edge (23), and a gas guide surface (55) inclined outward from bottom to top is formed corresponding to the outer peripheral wall of the spray pipe (5) close to the peripheral edge (23).

14. The cleaning and drying method of a cleaning machine according to any one of claims 1 to 7, characterized in that: When the door body (4) is in a closed state, the air guide port (41) is arranged vertically, and a power component (42) capable of guiding external air to the air guide port is installed in the door body (4).

15. The cleaning and drying method of a cleaning machine according to claim 14, characterized in that: The air guide port (41) is provided with an overflow structure (43) with a tip facing downwards, the overflow structure (43) comprising at least two guide blades (431) extending vertically along the air guide port (41), the width of the guide blades (431) gradually decreasing from the outside to the inside along the radial direction of the air guide port (41), and the lower part of the guide blade (431) gradually tilts downwards from the inner wall of the air guide port (41) to the center to form a guide tip (432).

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