CN114081412A - Cleaning machine - Google Patents

Abstract

The invention relates to a cleaning machine, which comprises a box body, a spray arm, a door body and an auxiliary pipe, wherein the auxiliary pipe is vertically arranged at the central part of a washing cavity, and a water guide channel and an air guide channel which extend along the axial direction and are relatively independent are arranged in the auxiliary pipe. According to the invention, on the basis of reserving the bottom spray arm, the auxiliary pipe which extends vertically is arranged in the middle of the washing cavity, and in a cleaning state, part of water in the spray arm is upwards sprayed by the spray arm, and the other part of water is upwards conveyed into the auxiliary pipe and is sprayed outwards from the middle of the washing cavity, so that the problem that the water column strength is smaller when the existing bottom spray arm sprays upwards is solved, and the cleaning effect is improved; when the washing is finished and the washing chamber enters a drying state, outside air is conveyed downwards through the door body and the upper ends of the auxiliary pipes and is sprayed to the edge from the central part of the washing chamber through the vertical auxiliary pipes, so that the gas diffusion effect is improved, the dead drying angle is eliminated, and the drying effect is improved.

Description

Cleaning machine

Technical Field

The invention relates to the technical field of dish washing machines, in particular to a cleaning machine.

Background

With the increasing living standard of people, the dish washing machine is used as a kitchen household appliance and is more and more introduced into families. The dish-washing machines on the market 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.

At present, the structure of a relatively mature water tank type cleaning machine in the market is mainly described in chinese patent "water tank type cleaning machine" (application number: CN201310750968.1) with publication number CN104224074B, that is, the water tank type cleaning machine comprises a tank body forming a washing space, the tank body comprises a water tank body and a cover plate rotatably connected to the water tank body, a concave draining area is arranged at least at the central part of the bottom of the water tank body, a water pump for pumping water in the draining area to the washing space above the draining area is arranged in the draining area, the draining area is covered with a draining plate with draining holes, and a rotary spray arm which is communicated with the water pump and has water outlet holes is arranged above the draining plate. By arranging the draining area covered with the draining plate and arranging the water pump in the draining area, the water pump is isolated from the washing area, so that the water flowing back to the water pump is filtered by the draining plate.

The main cleaning mode of the dish washer is bottom-up spraying of the bottom spraying arm, although the water jet can cover the main cleaning area along with the rotation of the spraying arm, the problem that the cleaning efficiency from bottom to top is gradually reduced inevitably exists, and the dish cleaning effect at the top is poor.

The structure for drying the bowls and dishes in the dish washing machine mainly utilizes the fan to blow wind into the trough body directly and then blow out, and convection diffusion under a natural state is realized by depending on wind speed, so that the airflow is not uniformly distributed in the trough body, and the drying effect is poor.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a cleaning machine which makes full use of a bowl frame and a door body structure to form an auxiliary spraying and drying system so as to improve the overall cleaning effect and drying effect, aiming at the current situation of the prior art.

A second technical problem to be solved by the present invention is to provide a cleaning machine that improves the cleaning effect and the drying effect by integrating an auxiliary spraying and blowing structure at the central portion of the washing chamber, in view of the current situation of the prior art.

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

a cleaning machine comprises a box body, a spraying arm and a door body, wherein a washing cavity is formed in the box body in a hollow mode, the spraying arm is arranged at the bottom of the washing cavity, the door body is arranged at the top of the box body and used for opening or closing an opening at the top of the washing cavity, the cleaning machine further comprises an auxiliary pipe vertically arranged in the center of the washing cavity, a water guide channel and an air guide channel which extend along the axial direction and are relatively independent are arranged in the auxiliary pipe, and a fluid output port communicated with the water guide channel and the air guide channel in a fluid mode is formed in the outer peripheral wall of the auxiliary pipe; the top wall of the spray arm is provided with a water outlet opening, the upper end of the water guide channel is a blind end, and the lower end of the water guide channel is a lower opening which is oppositely connected with the water outlet opening of the spray arm; the upper end of the auxiliary pipe is provided with an air inlet opening which can connect the air guide opening with the air guide channel in a door closing state and disconnect the air guide opening with the air guide channel in a door opening state.

In the invention, the water guide channel comprises a first sub-channel and a second sub-channel which are mutually connected from bottom to top, the lower port of the first sub-channel forms a lower opening of the water guide channel, the upper end of the first sub-channel is provided with a liquid outlet extending along the radial direction, the lower end of the second sub-channel is provided with a liquid guide pipe section extending downwards and capable of being inserted into the first sub-channel, the liquid guide pipe section and the liquid outlet form a flow dividing structure capable of dividing water in the first sub-channel in the radial direction and the axial direction, and the upper end of the second sub-channel is also provided with the liquid outlet.

Preferably, the number of the liquid outlet ports on the first sub-channel/the second sub-channel is at least two, the liquid outlet ports are arranged in the radial direction of the auxiliary pipe at intervals, the lower end of the liquid guide pipe section is located below the liquid outlet ports, a radial shunt channel is formed by a gap between the outer peripheral wall of the liquid guide pipe section and the inner peripheral wall of the first sub-channel, and an axial shunt channel is formed on the inner side of the liquid guide pipe section.

Preferably, an arc-shaped first flow 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, an arc-shaped second flow guide surface is formed between the upper end of the outer wall surface of the liquid guide pipe section and the upper wall surface of the liquid outlet, and the radian of the second flow guide surface is smaller than that of the first flow guide surface.

Preferably, the water guide channel further comprises at least two sub-channels having the same structure as the second sub-channel, each sub-channel is sequentially connected with the second sub-channel and the first sub-channel in the axial direction, and the connection structure between the sub-channels 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.

Preferably, the top dead end of the water guide channel is provided with a flow guide pipe section which extends downwards and is inserted into the corresponding sub-channel, the lower end of the flow guide pipe section is positioned below the corresponding liquid outlet, the flow guide pipe section forms a radial fluid buffer section, and a radial fluid leading-out section is formed between the outer peripheral wall of the flow guide pipe section and the inner peripheral wall of the sub-channel.

Preferably, a bowl-shaped flow guide section is formed between the upper end of the liquid guide pipe section and the sub-channel above the liquid guide pipe section; and/or a bowl-shaped buffer section is formed at the upper end of the flow guide pipe section.

Preferably, the fluid outlet is opened on the peripheral wall of the auxiliary pipe and extends along the circumferential direction, and the outer end of the liquid outlet is communicated with the fluid outlet.

Preferably, the air guide channels are arranged at the periphery of the water guide channel, the number of the air guide channels is at least two, the air guide channels and the liquid outlet are arranged at intervals, and air outlets communicated with the fluid outlet are formed in the outer sides of the air guide channels.

Preferably, an inward-arched partition plate is arranged on the inner peripheral wall of the gas guide channel at the position corresponding to the fluid output port, a gas guide cavity with an open top and a closed bottom is enclosed between the partition plate and the inner peripheral wall corresponding to the gas guide channel, the inner end of the gas outlet is connected with the gas guide cavity, and the outer end of the gas outlet is connected with the fluid output port.

Preferably, the number of the gas outlets is at least two, and the inner diameters of the gas outlets are gradually reduced along the gas output direction.

In the invention, the fluid output port is arranged on the peripheral wall of the auxiliary pipe and extends along the circumferential direction, and the fluid output port is provided with a first impeller which can rotate along with the fluid injection so as to spirally diffuse the fluid.

For assembly, the upper and lower wall surfaces of the fluid outlet together define an annular groove in which the first impeller is annularly and rotatably constrained at its inner edge.

Preferably, the first impeller comprises an upper cover plate, a lower cover plate and a plurality of first blades, the upper cover plate and the lower cover plate are arranged at intervals up and down, the first blades are arranged between the upper cover plate and the lower cover plate at intervals along the circumferential direction, and the distance between the upper cover plate and the lower cover plate gradually increases from inside to outside along the radial direction, so that a divergent fluid flow passage is formed.

Preferably, the lower wall surface of the upper cover plate is gradually inclined upwards from inside to outside in a radial direction, and the upper wall surface of the lower cover plate is gradually inclined downwards from inside to outside in a radial direction.

Preferably, the first impeller further comprises a middle clapboard, and the middle clapboard is arranged between the upper cover plate and the lower cover plate and is used for dividing the divergent fluid flow passage into two parts which are relatively independent from each other up and down.

Preferably, the first blades are gradually and obliquely arranged from the inner end to the outer end along the circumferential direction of the first impeller, the inner ends of the first blades are flush with the inner edges of the upper cover plate and the lower cover plate, and the outer ends of the first blades extend to the outer sides of the upper cover plate and the lower cover plate.

Preferably, the first blade comprises a first inclined section and a second inclined section which are mutually jointed in the radial direction, and the inclination degree of the second inclined section relative to the inner edge of the first impeller is larger than that of the first inclined section.

In the invention, the cleaning machine also comprises a bowl basket, the auxiliary pipe is restricted at the central part of the bowl basket, at least one guide pipe extending from the center to the corner of the box body is arranged at the bottom of the bowl basket, the first end of the guide pipe is communicated with the water guide channel, the second end of the guide pipe is used for washing the bottom of the box body, and the lower end of the air guide channel is connected with at least one guide pipe.

Preferably, the bottom of the box body is provided with a water outlet close to the first corner, the water outlet is provided with a slag collecting basket, the bottom of the bowl basket is provided with a guide pipe extending to the slag collecting basket, and the bottom of the bowl basket is further provided with a guide pipe extending to the second corner and/or the third corner and/or the fourth corner of the box body.

Preferably, the end of the guide pipe arranged corresponding to the slag collecting basket is connected with a first nozzle capable of jetting fluid to the slag collecting basket from top to bottom, and the end of the guide pipe arranged corresponding to the second corner and/or the third corner and/or the fourth corner is connected with a second nozzle capable of obliquely flushing the bottom of the tank body from outside to inside.

Preferably, the first nozzle comprises a flow dividing cavity at the central part, the bottom of the flow dividing cavity is connected with a first injection pipe capable of injecting corresponding to the central part of the slag collecting basket, a plurality of second injection pipes which extend along the radial direction and inject corresponding to the edge part of the slag collecting basket are arranged at intervals at the periphery of the flow dividing cavity, and the end parts of the second injection pipes form a guide part which is bent downwards so that the injection direction is inclined inwards.

Preferably, the second nozzle comprises a conduit portion in the shape and a plurality of nozzle portions connected to the lower side of the structure, the corners of the structure in the shape of the conduit portion are provided with engagement portions connected with the respective guide tubes, and in the assembled state, the nozzle portions are arranged obliquely inwardly from the edge of the tank.

In the invention, a second impeller which is arranged close to the lower opening and used for guiding water from bottom to top along the axial direction and dispersing the water into the guide pipe along the circumferential direction is arranged in the water guide channel.

Preferably, the second impeller includes first draft tube, first guide post, first axial flow blade and first centrifugal blade, first draft tube link up from top to bottom, first guide post passes first draft tube lower extreme and stretches out first draft tube below, first axial flow blade spiral distribution is in the first draft tube periphery of first draft tube below, first centrifugal blade is a plurality of and along the periphery of circumference interval distribution at first draft tube, first centrifugal blade's outer end passes first draft tube and stretches out outside the first draft tube, is used for carrying out circumference dispersion with the rivers outside the first draft tube, is located in the first draft tube form axial first water conservancy diversion passageway between the first centrifugal blade.

Preferably, a first guide structure for enabling two adjacent first centrifugal blades to smoothly transition is arranged on the peripheral wall of the first guide cylinder.

Preferably, the first centrifugal blade in the first guide cylinder gradually extends upwards from the outer end to the inner end along the water flow direction, and the top of the first centrifugal blade is of a second guide structure with an arc structure.

Preferably, the upper end surface of the first flow guiding column is shaped as an applied third flow guiding structure.

Preferably, the lower part of the water guide channel is provided with a liquid guide cavity for accommodating the first centrifugal blade, the guide pipe is connected with the liquid guide cavity, the top of the liquid guide cavity is provided with a guide port with an inner diameter smaller than that of the liquid guide cavity, and the upper part of the first guide cylinder penetrates through the guide port to be arranged.

In the invention, the bottom wall of the spray arm is provided with a water inlet arranged corresponding to the water outlet opening, the spray arm further comprises a third impeller for dispersing water in the spray arm along the circumferential direction and guiding the water upwards from the water outlet opening to the auxiliary pipe, the lower end of the third impeller is arranged corresponding to the water inlet, the upper end of the third impeller penetrates through the water outlet opening and is arranged corresponding to the lower opening of the auxiliary pipe, and the upper end of the third impeller is connected with the lower end of the second impeller and rotates synchronously with the second impeller.

Preferably, the third impeller includes a second guide cylinder, a second centrifugal blade, a sealing cover, a second guide column and an inner guide blade, the lower portion of the second guide cylinder is a first straight-flow section, the upper portion of the second guide cylinder is a first conical section with a diameter gradually decreasing from bottom to top, the second centrifugal blade is a plurality of and is arranged on the outer peripheral wall of the first straight-flow section at intervals, the sealing cover covers the top of the second centrifugal blade, the second guide column is arranged in the second guide cylinder in a penetrating manner, the inner guide blade is a plurality of and is arranged between the second guide cylinder and the second guide column at intervals along the circumferential direction, and a second guide channel for guiding water from bottom to top is formed between two adjacent inner guide blades.

Preferably, the lower portion of the second guide pillar is a second straight section corresponding to the lower portion of the first straight section, the upper portion of the second guide pillar is a second tapered section corresponding to the upper portion of the first straight section and the first tapered section, and the slope of the second tapered section is smaller than the slope of the first tapered section.

Preferably, the inner guide vane corresponding to the second straight flow section is a centrifugal section vane extending along the radial direction of the third impeller, and the inner guide vane corresponding to the second conical section is an axial flow section vane twisted spirally along the axial direction of the second guide column.

Preferably, the upper end of the second guide pillar is provided with a connecting shaft extending upwards, and correspondingly, a shaft hole extending upwards from the bottom and connected with the connecting shaft in a matched manner is formed in the second impeller.

Preferably, the top of the third impeller is provided with a straight cylinder section extending upwards around the periphery of the first conical section, and the inner space of the straight cylinder section is used for accommodating the lower part of the second impeller. The upper port of the straight cylinder section is arranged corresponding to the lower port of the liquid diversion cavity.

Preferably, an axial flow impeller for drawing water at the bottom of the box body into the spray arm through a water inlet is arranged below the spray arm, the upper end of the axial flow impeller is connected with the lower end of the third impeller, and a driving piece with a power output shaft connected with the axial flow impeller and the third impeller is arranged at the bottom of the box body.

In the invention, a gap is formed between the lower end of the auxiliary pipe and the upper wall surface of the spray arm, and the lower port of the air guide channel is positioned on the lower wall surface of the auxiliary pipe and arranged corresponding to the upper wall surface of the spray arm.

Preferably, the upper wall surface of the spray arm is provided with a surrounding edge arranged around the periphery of the auxiliary pipe, a space is arranged between the peripheral wall of the auxiliary pipe and the surrounding edge, and the peripheral wall of the auxiliary pipe corresponding to the surrounding edge forms a gas guide surface inclined outwards from bottom to top.

In the invention, the air inlet opening is vertically arranged in the closed state of the door body, and the door body is internally provided with a power component which can guide outside air to the air inlet opening.

Preferably, an overflow structure with a downward tip is arranged in the air inlet opening, the overflow structure comprises at least two guide vanes extending vertically along the air inlet opening, the width of each guide vane is gradually reduced from outside to inside along the radial direction of the air inlet opening, and the lower parts of the guide vanes are gradually inclined downwards from the inner wall of the air inlet opening to the center to guide the tip.

Compared with the prior art, the invention has the advantages that: according to the invention, on the basis of reserving the bottom spray arm, the auxiliary pipe which extends vertically is arranged in the middle of the washing cavity, and in a cleaning state, part of water in the spray arm is upwards sprayed by the spray arm, and the other part of water is upwards conveyed into the auxiliary pipe and is sprayed outwards from the middle of the washing cavity, so that the problem that the water column strength is smaller when the existing bottom spray arm sprays upwards is solved, and the cleaning effect is improved; when the washing is finished and the washing chamber enters a drying state, outside air is conveyed downwards through the door body and the upper ends of the auxiliary pipes and is sprayed to the edge from the central part of the washing chamber through the vertical auxiliary pipes, so that the gas diffusion effect is improved, the dead drying angle is eliminated, and the drying effect is improved.

Drawings

FIG. 1 is a schematic structural diagram (door open state) of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram (door closed state) according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of FIG. 2;

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

FIG. 5 is an enlarged view of portion B of FIG. 3;

FIG. 6 is a cross-sectional view of the bowl basket and auxiliary integrated structure in an embodiment of the present invention;

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

FIG. 8 is an enlarged view of portion D of FIG. 6;

FIG. 9 is another cross-sectional view of the bowl basket and auxiliary body structure in accordance with an embodiment of the present invention;

FIG. 10 is an enlarged view of section E of FIG. 9;

FIG. 11 is an enlarged view of portion F of FIG. 9;

FIG. 12 is a cross-sectional view of an auxiliary tube in an embodiment of the present invention;

FIG. 13 is another cross-sectional view of an auxiliary tube in an embodiment of the present invention;

FIG. 14 is a schematic structural diagram of a first impeller according to an embodiment of the present invention;

FIG. 15 is a cross-sectional view of FIG. 14;

FIG. 16 is another cross-sectional view of FIG. 14;

FIG. 17 is an enlarged view of a portion of FIG. 16;

FIG. 18 is a cross-sectional view of the bottom of the washer and the bowl basket in an embodiment of the present invention;

fig. 19 is an enlarged view of portion G of fig. 9;

FIG. 20 is a schematic structural view of a first nozzle in an embodiment of the present invention;

FIG. 21 is a schematic structural view of a second nozzle in an embodiment of the present invention;

FIG. 22 is a schematic structural view of a second impeller according to an embodiment of the present invention;

FIG. 23 is a cross-sectional view of FIG. 22;

fig. 24 is a schematic structural view of a third impeller in the embodiment of the present invention;

FIG. 25 is a schematic bottom view of FIG. 24;

fig. 26 is a cross-sectional view of fig. 24.

Detailed Description

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

As shown in fig. 1 to 26, the cleaning machine of the embodiment includes a box 1, a spray arm 2, a bowl basket 3, a door 4 and an auxiliary pipe 5, the inside of the box 1 is hollow to form a washing chamber 10, the spray arm 2 can be rotatably disposed at the bottom of the washing chamber 10, and a flow guide seat for supporting the spray arm 2 is disposed at the bottom of the washing chamber 10. The door 4 is disposed at the top of the cabinet 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 cavity 10 and is positioned above the spray arm 2 and used for placing bowls and dishes, and the spray arm 2 sprays water columns upwards to wash and clean the bowls and the dishes in the bowl basket 3.

The vertical arrangement of auxiliary tube 5 of this embodiment is in washing chamber 10 central part, and auxiliary tube 5 passes through support band and 3 integrated into one piece of bowl basket, perhaps, auxiliary tube 5 can dismantle with bowl basket 3 through buckle isotructure and be connected.

As shown in fig. 3 to 13, the auxiliary tube 5 is provided with a water guide passage 51 and an air guide passage 52 extending in the axial direction and being relatively independent, and a fluid outlet 53 in fluid communication with the water guide passage 51 and the air guide passage 52 is formed on the outer peripheral wall of the auxiliary tube 5. As shown in fig. 5, the top wall of the spray arm 2 is provided with a water outlet opening 21, the upper end of the water guide channel 51 is a blind end, and the lower end is a lower opening 510 oppositely connected with the water outlet opening 21 of the spray arm 2. The inner top wall of the door body 4 is provided with an air guide port 41 communicated with the outside air, the upper end of the auxiliary pipe 5 is provided with an air inlet opening 521 communicated with the air guide channel 52, the air guide port 41 is mutually butted with the air inlet opening 521 in a door closing state, and the air guide port 41 is mutually disconnected with the air inlet opening 521 in a door opening state. So that the auxiliary duct 5 can be supplied with air in the closed state and the auxiliary duct 5 cannot be supplied with air in the open state.

As shown in fig. 6, the water guide passage 51 includes a first sub-passage 511 and a second sub-passage 512 which are connected from bottom to top, a lower opening 510 of the water guide passage 51 is formed at a lower end opening of the first sub-passage 511, a liquid outlet 5111 which extends along the radial direction is arranged at an upper end of the first sub-passage 511, a liquid guide pipe segment 5121 which extends along the downward direction and can be inserted into the first sub-passage 511 is arranged at a lower end of the second sub-passage 512, the liquid guide pipe segment 5121 and the liquid outlet 5111 together form a flow dividing structure which can divide water in the first sub-passage 51 along the radial direction and the axial direction, and the liquid outlet 5111 is also arranged at an upper end of the second sub-passage 512.

As shown in fig. 7, the number of the liquid lead-out ports 5111 of the first sub-passage 511 and the second sub-passage 512 is 4, 4 liquid lead-out ports 5111 are arranged at intervals in a cross shape in the radial direction of the auxiliary pipe 5, the lower end of the liquid lead-out pipe segment 5121 is located below the corresponding liquid lead-out port 5111, a radial shunt passage 5101 is formed by a gap between the outer peripheral wall of the liquid lead-out pipe segment 5121 and the inner peripheral wall of the first sub-passage 511, and an axial shunt passage 5102 is formed by the inner side of the liquid lead-out pipe segment 5121.

By adopting the structure, the radial and axial flow distribution of the liquid can be realized, the two divided flows of liquid are guided, and the great capacity loss caused by the disordered flowing of the liquid at the flow distribution position is avoided.

An arc-shaped first guide surface 5112 is formed between the lower wall surface of the liquid outlet 5111 at the top of the first sub-passage 511 and the inner wall surface of the first sub-passage 511, an arc-shaped second guide surface 5122 is formed between the upper end of the outer wall surface of the liquid guide pipe segment 5121 and the upper wall surface of the liquid outlet 5111, and the radian of the second guide surface 5122 is smaller than that of the first guide surface 5112. The structure is favorable for further reducing the energy loss of the radially-divided liquid during output, so that the radial jet water flow keeps larger impact force, thereby improving the cleaning effect. A bowl-shaped flow guide section 5123 is formed between the upper end of the liquid guide pipe section 5121 and the sub-channel 513 above the liquid guide pipe section. The structure is beneficial to reducing the energy loss of the axial flow-dividing liquid wind.

In this embodiment, the water guiding channel 51 further includes three sub-channels 513 having the same structure as the second sub-channel 512, each sub-channel 513 is sequentially connected to the second sub-channel 512 and the first sub-channel 511 in the axial direction, and the connection structure between the sub-channels 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 the present embodiment provides 4 consecutive second sub-channels 512 above the first sub-channel 511. A group of fluid output ports 53 is opened between the two sub-channels, a group of fluid output ports 53 is opened on the water guide channel 51, and 5 groups of fluid output ports 53 are opened on the auxiliary tube 5 in the embodiment, so as to be sequentially arranged at intervals from top to bottom. Therefore, the horizontal water flow injection is carried out at different heights, so as to enlarge the injection range, eliminate the cleaning dead angle and further improve the cleaning effect.

As shown in fig. 8, the top dead end of the water guide channel 51 is provided with a pipe guide section 514 extending downward and inserted into the corresponding sub-channel 513, the lower end of the pipe guide section 514 is located below the corresponding liquid outlet 5111, the pipe guide section 514 forms a fluid buffer section in the radial direction, and the upper end of the pipe guide section 514 forms 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.

The fluid outlet 53 of the present embodiment is opened in the outer peripheral wall of the auxiliary pipe 5 and extends in the circumferential direction to form a ring shape, and the outer end of the liquid lead-out port 5111 communicates with the fluid outlet 53.

As shown in fig. 11 to 13, the air guide passages 52 are arranged at the periphery of the water guide passage 51, and 4 air guide passages 52 are alternately arranged in the circumferential direction with the respective liquid lead-out openings 5111. An air outlet 522 communicated with the fluid output port 53 is opened at the outer side of the air guide passage 52. By disposing the liquid lead-out openings 5111 circumferentially spaced from the air outlet openings 522, liquid is prevented from entering the air guide passage 52.

An inward arched baffle 523 is arranged on the inner peripheral wall of the gas guide channel 52 at the position corresponding to the fluid output port 53, a gas guide cavity 524 with an open top and a closed bottom is enclosed between the baffle 523 and the corresponding inner peripheral wall of the gas guide channel 52, the inner end of the gas outlet 522 is connected with the gas guide cavity 524, and the outer end of the gas outlet 522 is connected with the fluid output port 53. The gas guide cavity 524 is arranged, so that gas can only enter the gas guide cavity 524 from top to bottom and then is output through the gas outlet 522 and the fluid output port 53, a gas passage and a liquid passage from bottom to top are separated more obviously, and water in the water guide channel 51 is prevented from flowing backwards to enter the gas guide pipeline 52 when being output to the fluid output port 53.

Each gas diversion cavity 524 is correspondingly provided with 3 groups of gas outlets 522, and the inner diameter of each gas outlet 522 is gradually reduced along the gas output direction. This configuration not only increases the gas output pressure and increases the gas diffusion rate, but also further prevents liquid from being directed into the gas conduit 52.

In the present embodiment, the fluid output port 53 is opened in the outer peripheral wall of the auxiliary pipe 5 and extends in the circumferential direction, and the first impeller 100 that can rotate with the fluid injection to spirally diffuse the fluid is provided at the fluid output port 53. The upper and lower wall surfaces of the fluid outlet 53 together define an annular groove in which the first impeller 100 is annular and the inner edge is rotatably restrained. The first impeller 100 can not only enlarge the spraying range of the liquid, but also be beneficial to enlarging the spraying uniformity of the gas. The first impeller 100 includes an upper shroud 101, a lower shroud 102, and a plurality of first blades 103, the upper shroud 101 and the lower shroud 102 are spaced from each other in the vertical direction, the first blades 103 are circumferentially spaced between the upper shroud 101 and the lower shroud 12, and the distance between the upper shroud 101 and the lower shroud 102 gradually increases from the inside to the outside in the radial direction, so as to form a divergent fluid flow passage 104. The upper cover plate 101 and the lower cover plate 102 are both annular, the lower wall surface of the upper cover plate 101 gradually inclines upwards from inside to outside along the radial direction, and the upper wall surface of the lower cover plate 102 gradually inclines downwards from inside to outside along the radial direction. The gradually expanding fluid channel 104 can make the outlet water spray out in a gradually expanding water curtain, which is beneficial to expanding the cleaning range and eliminating the cleaning dead angle.

The first impeller 100 further includes a middle partition plate 105, and the middle partition plate 105 is disposed between the upper cover plate 101 and the lower cover plate 102, and is used for dividing the divergent fluid flow passage 104 into two parts which are relatively independent from each other in the upper and lower directions. The intermediate baffle 105 facilitates channeling the fluid through the diverging fluid flow passage 104 to maintain a high spray velocity of the fluid.

The first blades 103 are gradually and obliquely arranged along the circumferential direction of the first impeller 100 from the inner end to the outer end, the inner ends of the first blades 103 are flush with the inner edges of the upper cover plate 101 and the lower cover plate 102, and the outer ends of the first blades 103 extend to the outer sides of the upper cover plate 101 and the lower cover plate 102. The first vane 103 includes a first inclined section 1031 and a second inclined section 1032 which are radially connected to each other, and the second inclined section 1032 is inclined to the inner edge of the first impeller 100 more than the first inclined section 1031. The above structure is advantageous to cooperate with the water jet to provide the first impeller 100 with power for circumferential rotation.

In the present embodiment, as shown in fig. 18, the box body 1 is square and has four corners, four guiding tubes 31 are provided at the bottom of the bowl basket 3 and extend from the center to the corners of the box body 1, the first end of each guiding tube 31 is connected to a water guiding channel 51, the second end of each guiding tube 31 is used for flushing the bottom of the box body 1, and the lower end of each guiding tube 31 is connected to one of the guiding tubes 52.

The bottom of the box body 1 is provided with a water outlet 11 near a first corner, the water outlet 11 is provided with a slag collecting basket 12, the length of one of the guide pipes 31 at the bottom of the bowl basket 3 is less than that of the other guide pipes, and the end of the guide pipe 31 with shorter length is arranged corresponding to the slag collecting basket 12. Adopt above-mentioned structure, the bottom structure that utilizes bowl basket 3 forms the mode that three box diapire diagonal angle erodeed, a collection sediment basket erodees, is favorable to improving and avoids the residue to accumulate in 1 edge of box, improves collection sediment effect, keeps the box diapire clean.

The end of the guide pipe 31 corresponding to the slag collecting basket 12 is connected with a first nozzle 13 which can eject fluid to the slag collecting basket 12 from top to bottom, and the end of the guide pipe 31 corresponding to the other three corners of the box body 1 is connected with a second nozzle 14 which can perform inclined washing from outside to inside on the bottom of the box body 1. Adopt such structure to further improve bottom of the box cleanliness factor and collection sediment effect.

As shown in fig. 20, the first nozzle 13 includes a branch chamber 131 located at a central portion, a first injection pipe 132 capable of injecting corresponding to the central portion of the slag collection basket 12 is connected to the bottom of the branch chamber 131, a plurality of second injection pipes 133 extending in the radial direction and injecting corresponding to the edge portions of the slag collection basket 12 are arranged at intervals on the outer circumference of the branch chamber 131, and the end portions of the second injection pipes 133 are formed into guide portions 1331 bent downward so that the injection direction is inclined inward. The structure uniformly washes all parts of the slag collecting basket 12, is favorable for cleaning the slag collecting basket 12, and keeps the slag collecting basket 12 sanitary. As shown in fig. 19, the air guide channel 52 of the present embodiment is connected to the guide pipe 31 leading to the slag collecting basket 12, and is used for separately conveying air to the slag collecting basket 12 during drying to dry the slag collecting basket 12, so as to avoid the problems of mildew and bacteria growth of the slag collecting basket 12 due to humidity.

As shown in fig. 21, the above-mentioned second nozzle 14 comprises a conduit portion 141 in a shape and a plurality of nozzle portions 142 connected to the lower side of the structure, the corners of the structure of the conduit portion 141 being provided with engagement portions 143 connected with the respective guide tubes 31, the nozzle portions 141 being arranged inclined inwardly from the edge of the tank 1 in the assembled state. This structure is favorable to guiding scouring water flow, and is favorable to further improving the sediment effect from 1 corner of box to middle guide promptly.

In the present embodiment, as shown in fig. 5, the water guide passage 51 is provided therein with a second impeller 200 disposed near the lower opening 510 for guiding water from bottom to top in the axial direction and dispersing the water into the guide pipe 31 in the circumferential direction.

As shown in fig. 22 and 23, the second impeller 200 includes a first guide cylinder 201, a first guide post 202, a first axial flow vane 203 and a first centrifugal vane 204, the first guide cylinder 201 is vertically penetrated, the first guide post 202 penetrates through the lower end of the first guide cylinder 201 and extends out of the lower portion of the first guide cylinder 201, the first axial flow vane 203 is spirally distributed on the periphery of the first guide post 202 below the first guide cylinder 201, the first centrifugal vane 203 is provided in plurality and circumferentially distributed on the periphery of the first guide post 202 at intervals, the outer end of the first centrifugal vane 204 penetrates through the first guide cylinder 201 and extends out of the first guide cylinder 201 for circumferentially dispersing water flow outside the first guide cylinder 201, and an axial first guide channel 205 is formed between the first centrifugal vanes 204 located in the first guide cylinder 201.

An arc-shaped first flow guide structure 206 for enabling two adjacent first centrifugal blades 204 to smoothly transition is arranged on the outer peripheral wall of the first flow guide cylinder 201. The first centrifugal blade 204 in the first guide shell 201 gradually extends upwards from the outer end to the inner end along the water flow direction to form a second guide structure 207 with an arc-shaped top. The upper end surface of the first flow guiding column 202 is shaped as an applied third flow guiding structure 208. The structure is beneficial to reducing the energy loss of the water flow.

As shown in fig. 5 and 19, the lower portion of the water guide channel 51 is provided with a liquid guide cavity 515 for accommodating the first centrifugal blade 204, the input end of the guide pipe 31 is connected to the liquid guide cavity 515, the top of the liquid guide cavity 515 is provided with a guide opening 516 having an inner diameter smaller than that of the liquid guide cavity 515, and the upper portion of the first guide cylinder 201 is disposed through the guide opening 516. The structure is favorable for improving the assembly compactness, reducing the energy loss of water flow and keeping a better water guide effect.

As shown in fig. 5, in the present embodiment, the bottom wall of the spray arm 2 is provided with a water inlet 22 disposed corresponding to the water outlet 21, and further includes a third impeller 300 for dispersing the water in the spray arm 2 along the circumferential direction and guiding the water from the water outlet 21 to the auxiliary pipe 5, the lower end of the third impeller 300 is disposed corresponding to the water inlet 22, the upper end of the third impeller 300 passes through the water outlet 21 and is disposed corresponding to the lower opening 510 of the auxiliary pipe 5, and the upper end of the third impeller 300 is connected to the lower end of the second impeller 200 and rotates synchronously.

As shown in fig. 24 to 26, the third impeller 300 includes a second guide cylinder 301, a second centrifugal blade 302, a sealing cover 303, a second guide column 304 and an inner guide blade 305, the lower portion of the second guide cylinder 301 is a first straight-flow section 3011, the upper portion of the second guide cylinder 301 is a first tapered section 3012 with a diameter gradually decreasing from bottom to top, the second centrifugal blades 302 are arranged on the outer circumferential wall of the first straight-flow section 3011 at intervals, the sealing cover 303 covers the top of the second centrifugal blade 302, and when in use, the sealing cover 303 is arranged close to the inner top wall of the spray arm 2 to avoid the generation of vortex.

The second guide columns 304 are disposed in the second guide cylinder 301 in a penetrating manner, a plurality of inner guide vanes 305 are circumferentially arranged between the second guide cylinder 301 and the second guide columns 304 at intervals, and a second guide channel 306 for guiding water from bottom to top is configured between two adjacent inner guide vanes 305. The structure is beneficial to reducing energy loss and improving the water guide effect.

The lower portion of the second flow guiding pillar 304 is a second straight section 3041 corresponding to the lower portion of the first straight section 3011, the upper portion of the second flow guiding pillar 304 is a second tapered section 3042 corresponding to the upper portion of the first straight 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 3041. The structure is beneficial to further reducing energy loss and improving the water guide effect.

The inner guide vane 305 corresponding to the second straight flow section 3041 is a centrifugal section vane 3051 extending along the radial direction of the third impeller 300, and the inner guide vane 305 corresponding to the second conical section 3042 is an axial flow section vane 3052 spirally twisted along the axial direction of the second guide pillar 304. The upper portion of the second guide shell 301 of this embodiment is the first taper section 3012 whose diameter gradually decreases from bottom to top, that is, the pressure of the liquid conveyed upward in the second guide shell 301 gradually increases from bottom to top, and the guide effect of the centrifugal section blade 3051 is combined, which is favorable for further improving the power and pressure of the upward conveying water flow, and is favorable for improving the spray cleaning effect of the auxiliary pipe 5.

The upper end of the second flow guiding column 304 is provided with a connecting shaft 3043 extending upward, and correspondingly, a shaft hole 2021 extending upward from the bottom and connected with the connecting shaft 3043 in a matching manner is opened in the first flow guiding column 202 of the second impeller 200. So that the third impeller 300 and the second impeller 200 can be rotated in synchronization.

The top of the third impeller 300 is provided with a straight cylindrical section 3013 extending upward around the periphery of the first conical section 3012, and the inner space of the straight cylindrical section 3013 is used for accommodating the first axial flow blades 203 at the lower part of the second impeller 200. The upper port of the straight-tube section 3013 is arranged corresponding to the lower port of the liquid diversion cavity 515. This structure surrounds the first axial flow vane 203 therein, which is advantageous for avoiding energy loss therein.

As shown in fig. 3, an axial flow impeller 400 for drawing water at the bottom of the box body 1 into the spray arm 2 through the water inlet 22 is arranged below the spray arm 2, the upper end of the axial flow impeller 400 is connected with the lower end of the third impeller 300, a driving member 6 with a power output shaft connected with the axial flow impeller 400 and the third impeller 300 is arranged at the bottom of the box body 1, and the driving member 6 is a motor.

In the present embodiment, as shown in fig. 5, a gap 54 is provided between the lower end of the auxiliary duct 5 and the upper wall surface of the shower arm 2, and the lower port of the air guide passage 52 is located on the lower wall surface of the auxiliary duct 5 and is arranged corresponding to the upper wall surface of the shower arm 2. The upper wall surface of the spray arm 2 is provided with a surrounding edge 23 arranged around the periphery of the auxiliary pipe 5, a space is arranged between the peripheral wall of the auxiliary pipe 5 and the surrounding edge 23, and a gas guide surface 55 inclined outwards from bottom to top is formed on the peripheral wall of the auxiliary pipe 5 correspondingly close to the surrounding edge 23. The structure can guide the gas to the bottom of the box body 1 from top to bottom, and the gas is bent to the periphery and upwards diffused after contacting the upper wall surface of the spray arm 2, thereby being beneficial to improving the uniformity of gas diffusion and eliminating the dead angle of drying.

In the present embodiment, as shown in fig. 2 and 3, in the closed state of the door 4, the air inlet 41 is vertically arranged, and the door 4 is installed with a power component 42 capable of guiding the outside air to the air inlet 41, and the power component 42 is an air pump or a fan.

As shown in fig. 4, an overflow structure 43 with a downward tip is disposed in the air inlet 41, the overflow structure 43 includes four guide vanes 431 extending vertically along the air inlet 41, the width of the guide vanes 431 gradually decreases from outside to inside in the radial direction of the air inlet 41, and the lower portion of the guide vanes 431 gradually inclines downward from the inner wall of the air inlet 41 to the center to form a guide tip 432. The overflow structure 43 prevents water from entering the door 4 or adversely affecting the driving member 42 if the liquid is inadvertently introduced into the junction between the upper end of the auxiliary pipe 5 and the air inlet opening 41.

The side wall of the box body 1 of the embodiment can be provided with a moisture output port for discharging the gas carrying moisture.

When the cleaning machine of the embodiment is used, in a cleaning state, part of water in the spray arm 2 is upwards sprayed through the spray arm 2, the other part of water is upwards conveyed in the auxiliary pipe 5 through the water guide channel 51 under the power of the third impeller 300 and the second impeller 200, and water curtain type spraying is outwards carried out from the middle part of the washing cavity 10 through the first impeller 100 in the conveying process, so that the problem that the water column strength is smaller when the existing bottom spray arm 2 sprays upwards is solved, and the cleaning effect is favorably improved; meanwhile, the second impeller 200 also outputs part of the water in the auxiliary pipe 5 through the guide pipe 31, and washes three corners of the box body 1 and one slag collection basket 32 in a three-to-one washing mode to improve the slag collection effect; when the washing is finished and the washing chamber enters a drying state, the outside air is conveyed downwards from the upper ends of the door body 4 and the auxiliary pipe 5 through the air guide pipeline 52 and is sprayed to the edge from the central part of the washing chamber 10 through the first impeller 100 on the auxiliary pipe 5, so that the air is diffused rapidly, the dead drying angle is eliminated, and the drying effect is improved.

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 invention, 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 (40)

1. The utility model provides a cleaning machine, includes box (1), spray arm (2) and door body (4), the inside cavity of box (1) forms washing chamber (10), spray arm (2) set up in the bottom of this washing chamber (10), door body (4) set up in box (1) top and are used for the uncovered opening in top or closing its characterized in that of washing chamber (10): the washing machine further comprises an auxiliary pipe (5) vertically arranged in the washing cavity (10), a water guide channel (51) and an air guide channel (52) which extend along the axial direction and are relatively independent are arranged in the auxiliary pipe (5), and a fluid output port (53) which is communicated with the water guide channel (51) and the air guide channel (52) in a fluid mode is formed in the outer peripheral wall of the auxiliary pipe (5); a water outlet opening (21) is formed in 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 of the water guide channel is a lower opening (510) which is relatively connected with the water outlet opening (21) of the spray arm (2); the inner top wall of the door body (4) is provided with an air guide opening (41) communicated with outside air, and the upper end of the auxiliary pipe (5) is provided with an air inlet opening (521) which can communicate the air guide opening (41) with the air guide channel (52) in a door closing state and disconnect the air guide opening (41) with the air guide channel (52) in a door opening state.

2. The cleaning machine of claim 1, wherein: the water guide channel (51) comprises a first sub-channel (511) and a second sub-channel (512) which are mutually connected from bottom to top, a lower opening (510) of the water guide channel (51) is formed at a lower end opening of the first sub-channel (511), a liquid guide outlet (5111) which extends along the radial direction is formed at the upper end of the first sub-channel (511), a liquid guide pipe section (5121) which extends downwards and can be inserted into the first sub-channel (511) is formed at the lower end of the second sub-channel (512), the liquid guide pipe section (5121) and the liquid guide outlet (5111) jointly form a flow dividing structure which can divide water in the first sub-channel (511) along the radial direction and the axial direction, and the liquid guide outlet (5111) is also formed at the upper end of the second sub-channel (512).

3. The cleaning machine of claim 2, wherein: the number of the liquid outlet ports (5111) on the first sub-channel (511)/the second sub-channel (512) is at least two, the liquid outlet ports are radially arranged at intervals on the auxiliary pipe (5), the lower end of the liquid guide pipe section (5121) is positioned below the liquid outlet ports (5111), a radial shunt channel is formed by a gap between the outer peripheral wall of the liquid guide pipe section (5121) and the inner peripheral wall of the first sub-channel (511), and an axial shunt channel is formed on the inner side of the liquid guide pipe section (5121).

4. The cleaning machine of claim 2, wherein: an arc-shaped first 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), an arc-shaped second guide surface (5122) is formed between the upper end of the outer wall surface of the liquid guide pipe section (5121) and the upper wall surface of the liquid outlet (5111), and the radian of the second guide surface (5122) is smaller than that of the first guide surface (5112).

5. The cleaning machine of claim 2, wherein: the water guide channel (51) further comprises at least two sub-channels (513) with the same structure as the second sub-channel (512), each sub-channel (513) is sequentially connected with the second sub-channel (512) and the first sub-channel (511) in the axial direction, and the connecting structure between the sub-channels (513) is the same as the connecting structure between the upper end of the first sub-channel (511) and the lower end of the second sub-channel (512).

6. The cleaning machine of claim 5, wherein: the top dead end of the water guide channel (51) is provided with a flow guide pipe section (514) which extends downwards and is inserted into the corresponding sub-channel, the lower end of the flow guide pipe section (514) is positioned below the corresponding liquid outlet (5111), the flow guide pipe section (514) forms a radial fluid buffer section, and a radial fluid leading-out section is formed between the outer peripheral wall of the flow guide pipe section (514) and the inner peripheral wall of the sub-channel (513).

7. The cleaning machine of claim 6, wherein: a bowl-shaped flow guide section (5123) is formed between the upper end of the liquid guide pipe section (5121) and the sub-channel (513) above the liquid guide pipe section; and/or a bowl-shaped buffer section (5141) is formed at the upper end of the flow guide pipe section (514).

8. The cleaning machine of any one of claims 2 to 7, wherein: the fluid output port (53) is arranged on the peripheral wall of the auxiliary pipe (5) and extends along the circumferential direction, and the outer end of the liquid leading-out port (5111) is communicated with the fluid output port (53).

9. The cleaning machine of claim 8, wherein: the air guide channels (52) are arranged on the periphery of the water guide channel (51), at least two air guide channels (52) are arranged at intervals with the liquid outlet (5111), and air outlets (522) communicated with the fluid outlet (53) are formed in the outer sides of the air guide channels (52).

10. The cleaning machine of claim 9, wherein: an inward arched clapboard (523) is arranged on the inner peripheral wall of the air guide channel (52) at the position corresponding to the fluid output port (53), an air guide cavity (524) with an open top and a closed bottom is enclosed between the clapboard (523) and the corresponding inner peripheral wall of the air guide channel (52), the inner end of the air outlet (522) is connected with the air guide cavity (524), and the outer end of the air outlet is connected with the fluid output port (53).

11. The cleaning machine of claim 10, wherein: the number of the gas outlets (522) is at least two, and the inner diameters of the gas outlets are gradually reduced along the gas output direction.

12. The cleaning machine of any one of claims 1 to 7, wherein: the fluid output port (53) is arranged on the peripheral wall of the auxiliary pipe (5) and extends along the circumferential direction, and a first impeller (100) which can rotate along with the fluid injection and can spirally diffuse the fluid is arranged at the fluid output port (53).

13. The cleaning machine of claim 12, wherein: the upper wall surface and the lower wall surface of the fluid output port (53) jointly enclose an annular groove, and the first impeller (100) is annular and the inner edge of the first impeller is rotationally restrained in the annular groove.

14. The cleaning machine of claim 12, wherein: the first impeller (100) comprises an upper cover plate (101), a lower cover plate (102) and a first blade (103), wherein the upper cover plate (101) and the lower cover plate (102) are arranged at intervals up and down, the first blade (103) is multiple and is arranged between the upper cover plate (101) and the lower cover plate (102) at intervals along the circumferential direction, and the distance between the upper cover plate (101) and the lower cover plate (102) is gradually increased from inside to outside along the radial direction so as to form a gradually-expanded fluid flow channel (104).

15. The cleaning machine of claim 14, wherein: the lower wall surface of the upper cover plate (101) is gradually inclined upwards from inside to outside in the radial direction, and the upper wall surface of the lower cover plate (102) is gradually inclined downwards from inside to outside in the radial direction.

16. The cleaning machine of claim 14, wherein: the first impeller (100) further comprises a middle clapboard (105), and the middle clapboard (105) is arranged between the upper cover plate (101) and the lower cover plate (102) and is used for dividing the divergent fluid flow passage (104) into two parts which are relatively independent from each other up and down.

17. The cleaning machine of claim 14, wherein: the first blades (103) are gradually and obliquely arranged from the inner end to the outer end along the circumferential direction of the first impeller (100), the inner ends of the first blades (103) are flush with the inner edges of the upper cover plate (101) and the lower cover plate (102), and the outer ends of the first blades (103) extend to the outer sides of the upper cover plate (101) and the lower cover plate (102).

18. The cleaning machine of claim 17, wherein: the first blade (103) comprises a first inclined section (1031) and a second inclined section (1032) which are mutually jointed in the radial direction, and the inclination degree of the second inclined section (1032) relative to the inner edge of the first impeller (100) is larger than that of the first inclined section (1031).

19. The cleaning machine of any one of claims 1 to 7, wherein: still include bowl basket (3), auxiliary tube (5) retrain the central part of bowl basket (3), bowl basket (3) bottom is provided with at least one from central authorities to box (1) bight extension's guiding tube (31), the first end of this guiding tube (31) with water guide channel (51) are linked together, the second end is used for scouring box (1) bottom, air guide channel (52) lower extreme is connected with at least one guiding tube (31).

20. The cleaning machine of claim 19, wherein: the bottom of the box body (1) is provided with a water outlet (11) close to a first corner, the water outlet (11) is provided with a slag collecting basket (12), the bottom of the bowl basket (3) is provided with a guide pipe (31) extending to the slag collecting basket (12), and the bottom of the bowl basket (3) is further provided with a guide pipe (31) extending to a second corner and/or a third corner and/or a fourth corner of the box body (1).

21. The cleaning machine of claim 20, wherein: the end part of the guide pipe (31) arranged corresponding to the slag collecting basket (12) is connected with a first nozzle (13) capable of jetting fluid to the slag collecting basket (12) from top to bottom, and the end part of the guide pipe (31) arranged corresponding to the second corner part and/or the third corner part and/or the fourth corner part is connected with a second nozzle (14) capable of obliquely washing the bottom of the box body (1) from outside to inside.

22. The cleaning machine of claim 21, wherein: the first nozzle (13) comprises a branch cavity (131) positioned in the central part, a first injection pipe (132) capable of injecting corresponding to the central part of the slag collecting basket (12) is connected to the bottom of the branch cavity (131), a plurality of second injection pipes (133) which extend along the radial direction and inject corresponding to the edge part of the slag collecting basket (12) are arranged at intervals on the periphery of the branch cavity (131), and the end parts of the second injection pipes (133) form a guide part (1331) which is bent downwards so that the injection direction inclines inwards.

23. The cleaning machine of claim 21, wherein: the second nozzle (14) comprises a conduit portion (141) in a shape and a plurality of nozzle portions (142) connected to the lower side of the structure, the corners of the structure of the conduit portion (141) are provided with engagement portions (143) connected with respective guide tubes (31), and in an assembled state, the nozzle portions (142) are arranged inclined inwardly from the edge of the tank (1).

24. The cleaning machine of claim 19, wherein: the water guide channel (51) is internally provided with a second impeller (200) which is arranged close to the lower opening (510) and used for guiding water from bottom to top along the axial direction and dispersing the water into the guide pipe (31) along the circumferential direction.

25. The cleaning machine of claim 24, wherein: the second impeller (200) comprises a first guide cylinder (201), a first guide column (202), a first axial flow blade (203) and a first centrifugal blade (204), the first guide cylinder (201) is communicated up and down, the first guide column (202) passes through the lower end of the first guide cylinder (201) and extends out of the lower part of the first guide cylinder (201), the first axial flow blades (203) are spirally distributed on the periphery of the first guide column (202) below the first guide cylinder (201), the first centrifugal blades (204) are distributed on the periphery of the first guide pillar (202) at intervals along the circumferential direction, the outer end of the first centrifugal blade (204) penetrates through the first guide shell (201) and extends out of the first guide shell (201) to be used for circumferentially dispersing water flow outside the first guide shell (201), and an axial first guide channel (205) is formed between the first centrifugal blade (204) located in the first guide shell (201).

26. The cleaning machine of claim 25, wherein: the outer peripheral wall of the first guide cylinder (201) is provided with a first guide structure (206) which enables two adjacent first centrifugal blades (204) to be in smooth transition.

27. The cleaning machine of claim 25, wherein: the first centrifugal blade (204) in the first guide cylinder (201) gradually extends upwards from the outer end to the inner end along the water flow direction to form a second guide structure (207) with an arc-shaped top.

28. The cleaning machine of claim 25, wherein: the upper end face of the first flow guide column (202) is formed into an applied third flow guide structure (208).

29. The cleaning machine of claim 25, wherein: the lower part of the water guide channel (51) is provided with a liquid guide cavity (515) for accommodating the first centrifugal blade (204), the guide pipe (31) is connected with the liquid guide cavity (515), the top of the liquid guide cavity (515) is provided with a guide opening (516) with the inner diameter smaller than that of the liquid guide cavity (515), and the upper part of the first guide cylinder (201) penetrates through the guide opening (516) to be arranged.

30. The cleaning machine of claim 24, wherein: the water spraying device is characterized in that a water inlet (22) arranged corresponding to the water outlet opening (21) is formed in the bottom wall of the spraying arm (2), the water spraying device further comprises a third impeller (300) used for dispersing water in the spraying arm (2) in the circumferential direction and guiding the water upwards from the water outlet opening to the auxiliary pipe (5), the lower end of the third impeller (300) is arranged corresponding to the water inlet (22), and the upper end of the third impeller penetrates through the lower opening (510) of the water outlet opening (21) corresponding to the auxiliary pipe (5).

31. The cleaning machine of claim 30, wherein: the third impeller (300) comprises a second guide cylinder (301), a second centrifugal blade (302), a sealing cover (303), a second guide column (304) and an inner guide blade (305), the lower part of the second guide shell (301) is a first straight-flow section (3011), the upper part is a first conical section (3012) with the diameter gradually decreasing from bottom to top, the second centrifugal blades (302) are multiple and are arranged on the peripheral wall of the first straight flow section (3011) at intervals, the cover (303) covers the top of the second centrifugal blade (302), the second guide column (304) is arranged in the second guide cylinder (301) in a penetrating way, the inner guide vanes (305) are arranged between the second guide cylinder (301) and the second guide column (304) at intervals along the circumferential direction, and a second guide channel (306) for guiding water from bottom to top is formed between every two adjacent inner guide vanes (305).

32. The cleaning machine of claim 31, wherein: the lower part of the second flow guiding column (304) is a second straight-flow section (3041) corresponding to the lower part of the first straight-flow section (3011), the upper part of the second flow guiding column (304) is a second conical section (3042) corresponding to the upper part of the first straight-flow section (3011) and the first conical section (3012), and the gradient of the second conical section (3042) is smaller than that of the first conical section (3012).

33. The cleaning machine of claim 32, wherein: the inner guide vane (305) corresponding to the second straight flow section (3041) is a centrifugal section vane (3051) extending along the radial direction of the third impeller (300), and the inner guide vane (305) corresponding to the second conical section (3042) is an axial flow section vane (3052) spirally twisted along the axial direction of the second guide column (304).

34. The cleaning machine of claim 31, wherein: the upper end of the second guide pillar (304) is provided with a connecting shaft (3043) extending upwards, and correspondingly, a shaft hole (2021) extending upwards from the bottom and connected with the connecting shaft (3043) in a matching manner is formed in the second impeller (200).

35. The cleaning machine of claim 31, wherein: the top of the third impeller (300) is provided with a straight cylinder section (3013) extending upwards around the periphery of the first conical section (3012), and the inner space of the straight cylinder section (3013) is used for accommodating the lower part of the second impeller (200).

36. The cleaning machine of claim 30, wherein: an axial flow impeller (400) used for drawing water at the bottom of the box body (1) into the spraying arm (2) through a water inlet (22) is arranged below the spraying arm (2), the upper end of the axial flow impeller (400) is connected with the lower end of the third impeller (300), and a driving piece (6) with a power output shaft connected with the axial flow impeller (400) and the third impeller (300) is arranged at the bottom of the box body (1).

37. The cleaning machine of any one of claims 1 to 7, wherein: a gap (54) is formed between the lower end of the auxiliary pipe (5) and the upper wall surface of the spray arm (2), and the lower port of the air guide channel (52) is positioned on the lower wall surface of the auxiliary pipe (5) and arranged corresponding to the upper wall surface of the spray arm (2).

38. The cleaning machine of claim 37, wherein: be provided with surrounding edge (23) around the periphery of auxiliary tube (5) and arrange on the last wall of spray arm (2), have the interval between the periphery wall of auxiliary tube (5) and surrounding edge (23), and correspond auxiliary tube (5) periphery wall near surrounding edge (23) and form gas water conservancy diversion face (55) that inclines outward from bottom to top.

39. The cleaning machine of any one of claims 1 to 7, wherein: and when the door body (4) is in a closed state, the air inlet opening (41) is vertically arranged, and a power component (42) capable of guiding outside air to the air inlet opening is installed in the door body (4).

40. The cleaning machine of claim 39, wherein: an overflow structure (43) with a downward tip is arranged in the air inlet opening (41), the overflow structure (43) comprises at least two guide vanes (431) extending vertically along the air inlet opening (41), the width of each guide vane (431) is gradually reduced from outside to inside along the radial direction of the air inlet opening (41), and the lower parts of the guide vanes (431) gradually incline downwards to guide tips (432) from the inner wall of the air inlet opening (41) to the center.

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