A cleaning machine

Abstract

The present application relates to a kind of cleaning machines, including tank, pump water mechanism and water supply pipeline, the bottom of the tank is provided with the concave water draining area, the top of the water draining area is covered with water draining plate, pump water mechanism is used to pump the water of water draining area to the above of water draining plate, the lower end of the water supply pipeline is arranged through water draining plate and is in fluid communication with pump water mechanism, characterized by: the water draining plate includes first portion, second portion, third portion that can be mutually spliced, to adapt the open type water pump structure of the present application, the water draining plate is set to three portions that can be mutually spliced, first portion is very small in volume, facilitate its assembly with water supply pipeline, first portion is as fixed portion and is constrained in the bottom of tank by water supply pipeline when factory, second portion, third portion covers the main range of water draining area, second portion is locked on the tank, when needing to clean water draining area, only third portion is removed, it is easy to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to a cleaning machine for cleaning dishes, fruits and vegetables. BACKGROUND

[0002] With the increasing improvement of people's living standards, dishwashers as a kind of kitchen household appliances are increasingly entering families. The dishwashers on the market are generally divided into three types: table type, cabinet type and slot type. Among them, the table type dishwasher is a whole independent structure, which is generally placed on the table for use; the cabinet type dishwasher is also an independent structure, but needs to be embedded in the kitchen cabinet for use; the slot type dishwasher is combined with the sink, which is generally installed in the kitchen cabinet for use.

[0003] Compared with the table type and cabinet type dishwashers, the slot type dishwasher has a smaller volume and can clean a smaller number of dishes at a time, but consumes less energy for each cleaning. The applicant's prior application ZL201310752030.3 "Open sink cleaning machine" discloses a slot type dishwasher, which adopts an open type water pump, and the spray arm serves as a part of the water pump volute, and simultaneously has the functions of water pumping and water column spraying. The Chinese patent application for invention with the application publication number CN106859563A "Energy-saving dishwasher" (application number: CN201611232345.5) discloses a table type or cabinet type dishwasher, which includes a cavity for accommodating tableware and providing a cleaning space, a spraying system for spraying water to clean the tableware, and a pump body for pumping water and supplying water to the spraying system; the spraying system is arranged in the cavity; the water pumping end of the pump body is communicated with the cavity, and the water supplying end is communicated with the spraying system; the spraying system includes an inner water pipe and two or more sets of spraying devices, and the two or more sets of spraying devices are arranged on the inner water pipe; the water supplying end of the pump body is connected with a water distribution device, the water distribution device is provided with two or more water outlets corresponding to the two or more sets of spraying devices, and the spraying devices are communicated with the corresponding water outlets; during operation, the water distribution device opens one or more water outlets according to the instruction, so that one or more sets of spraying devices perform cleaning work.

[0004] In the above-mentioned dishwasher capable of bottom spraying and top spraying, the bottom water supply and the top water supply generally need to be separated by a water distribution device, and the pipeline of the top water supply is communicated with the water distribution device through the filter screen plate. For the dishwasher using a closed type water pump, since the water pump does not need to be installed in cooperation with the filter screen plate, the filter screen plate does not need to be disassembled, but for the dishwasher using an open type water pump, it is difficult to disassemble the filter screen plate on the basis of cooperation between the filter screen plate and the water supply pipeline, so that the area below the filter screen plate is difficult to clean. SUMMARY

[0005] The technical problem solved by the present application is to provide a cleaning machine for conveniently connecting a filter screen plate to a water supply pipeline and conveniently disassembling the filter screen plate for cleaning the lower side of the filter screen plate by reasonably splicing the filter screen plate.

[0006] The technical solution adopted by the present application to solve the above technical problem is as follows: a cleaning machine comprises a box body, a water pumping mechanism and a water supply pipeline, the bottom of the box body is provided with a concave water draining area having oppositely arranged first and second edges, the top of the water draining area is covered with a water draining plate, the water pumping mechanism is used for pumping water in the water draining area to above the water draining plate, the lower end of the water supply pipeline is arranged through the water draining plate and is in fluid communication with the water pumping mechanism, and the water draining plate comprises

[0007] a first part arranged close to the first edge of the water draining area and positioned on the box body, used for providing an assembly area for the water supply pipeline;

[0008] a second part spliced with the first part and locked on the box body through a detachable connecting structure;

[0009] a third part arranged close to the second edge of the water draining area and spliced with the second part, the third part being detachably constrained on the box body;

[0010] the second part or the joint of the second part and the third part is provided with a mounting opening matched with the water pumping mechanism.

[0011] Preferably, the edge of the second part is provided with a semicircular first notch, and correspondingly, the edge of the third part is provided with a semicircular second notch, the first notch and the second notch are mutually matched to form the mounting opening. In actual use, the second part is locked on the bottom wall of the box body through screws, and the third part is directly placed at the edge of the second part and the water draining area, when the water draining area is cleaned, the first part and the second part do not need to be disassembled, and only the third part needs to be removed, and the above-mentioned mutually matched first notch and second notch structure facilitates the disassembly of only the third part.

[0012] Preferably, the water pumping mechanism has a supporting plate arranged close to the lower edge of the mounting opening, the first notch is provided with a first protruding ring extending upward, the second notch is provided with a second protruding ring extending upward, the first protruding ring and the second protruding ring are mutually matched to form an assembly ring capable of being arranged around the periphery of the supporting plate, a clamping ring is detachably clamped on the supporting plate above the water draining plate and has a lower edge pressed on the first protruding ring and the second protruding ring, and the clamping ring is mounted on the supporting plate through a buckle structure. The above-mentioned clamping ring facilitates the mounting of the following upper shell, and also can press the third part on the second part, when the third part is disassembled, the following upper shell and the clamping ring are removed, and then the third part is disassembled, which is convenient to operate.

[0013]

[0013] Preferably, the second part is a plastic piece, the first flange is integrally formed with the second part, the third part is a metal piece, and the second flange is a plastic piece fusedly connected to the third part. This structure is advantageous in improving the assembly compactness and practicability of the draining plate.

[0014] The pump water mechanism of the present application comprises:

[0015] The upper impeller has a centrifugal impeller in the upper part and an axial flow impeller in the lower part.

[0016] The lower impeller is a centrifugal impeller.

[0017] The upper shell has a first accommodating cavity for mounting the upper part of the upper impeller, and the top wall and / or the side wall of the upper shell is provided with a spray hole in fluid communication with the first accommodating cavity.

[0018] The lower shell is connected below the upper shell, the upper part of the lower shell has a second accommodating cavity for mounting the lower part of the upper impeller, the second accommodating cavity is in communication with the first accommodating cavity, the side wall of the lower shell is provided with a first water inlet for water to enter the second accommodating cavity, the first water inlet is located in the draining area, the lower part of the lower shell has a third accommodating cavity for mounting the lower impeller, the bottom wall of the lower shell is provided with a second water inlet for water to enter the third accommodating cavity, and the side wall of the lower shell is provided with a water outlet for water to output from the third accommodating cavity, the water outlet is in communication with the water supply pipeline.

[0019] The bottom of the upper shell is rotatably constrained on the ring.

[0020] The above structure actually constitutes an open double-pump system, in which the second accommodating cavity, the first accommodating cavity and the upper impeller located in the upper part provide bottom spray water supply, and the third accommodating cavity and the lower impeller located in the lower part provide top and / or middle spray water supply. Since the power of the two water flows is independently supplied by the corresponding pumps, the lift and flow rate of each water flow are improved, which is advantageous in improving the cleaning effect.

[0021] In the above scheme, the inner edge of the first part is provided with a U-shaped groove, and the corresponding edge of the second part extends downward to form a clamping edge capable of being clamped in the U-shaped groove. By adopting the above structure, on the one hand, the first part and the second part are facilitated to be spliced and the sealing property of the spliced part is maintained; on the other hand, the connection between the water supply pipeline and the water distribution cavity is formed at the factory, that is, the first part is constrained on the bottom of the box body and is not disassembled, but in order to facilitate the cleaning of the part in the draining area, the second part needs to be disassembled, the clamping edge of the second part is pressed in the U-shaped groove, when the second part is disassembled, the constraint relationship between the second part and the box body is cancelled, and the second part can be directly moved upward and taken out, which is convenient for disassembly and assembly.

[0022] Preferably, the U-shaped groove is formed by sinking the inner edge of the first part, and the upper wall surface of the first part and the upper wall surface of the second part are substantially flush at the joint in the assembled state. This structure is conducive to maintaining good water flow guiding effect and avoiding affecting the backwater effect by obstructing the water flow direction.

[0023] Preferably, the assembly table is provided with a water passing opening in communication with the water distribution cavity, the first part is provided with an assembly opening corresponding to the water passing opening, the lower end of the water supply pipeline is provided with a plug-in part sealingly connected with the water passing opening by penetrating the assembly opening, and a boss capable of pressing on the first part is formed at the joint of the water supply pipeline and the plug-in part. This structure is conducive to improving the compactness and sealing of the connection between the water supply pipeline, the first part, the assembly table and the water distribution cavity.

[0024] Preferably, the inner wall of the assembly opening is provided with a card hole penetrating upward and downward, and the outer peripheral wall of the plug-in part is provided with a convex card capable of being clamped with the lower wall surface of the first part by penetrating the card hole. This structure can prevent the water supply pipeline and the first part from loosening and affecting the positioning of the first part, and also prevent the lower end of the water supply pipeline from detaching.

[0025] Preferably, the upper wall surface of the assembly table is provided with an assembly sleeve extending upward around the water passing opening, and the outer peripheral wall of the plug-in part is arranged close to the inner peripheral wall of the assembly sleeve in the assembled state and is provided with a sealing ring therebetween. This structure is conducive to further improving the sealing of the connection.

[0026] Preferably, the outer edge of the first part is downwardly extended to form a first surrounding edge arranged close to the inner peripheral wall of the draining area, and the outer edge of the second part is downwardly extended to form a second surrounding edge arranged close to the inner peripheral wall of the draining area. This structure can improve the compactness of the connection between the draining plate and the box body, and avoid the accumulation of residues at the connection gap therebetween.

[0027] In order to facilitate disassembly, the second part is locked on the bottom wall of the box body by screws.

[0028] Preferably, the second part is provided with a U-shaped assembly groove at the edge close to the third part, and the corresponding edge of the third part is downwardly extended to form a convex edge capable of being clamped in the assembly groove. The assembly groove is formed by sinking the edge of the second part, and the upper wall surface of the second part and the upper wall surface of the third part are substantially flush at the joint in the assembled state. When the draining area needs to be cleaned, only the third part is disassembled, and the above structure is adopted to facilitate disassembly of the third part.

[0029] As an improvement, a U-shaped guide port is provided on the outer wall of the assembly groove, which is connected to the bottom of the assembly groove. Since the joint between the second and third parts is roughly located in the center of the bottom of the box, small food residues in the falling water flow can easily enter the gap between the second and third parts. With the above structure, the impact force of the falling water flow can be used to flush the small residues in the gap into the drainage area through the guide port, avoiding the growth of bacteria due to long-term lack of cleaning.

[0030] Preferably, the third part is provided with a slag collection basket with an opening. The top of the slag collection basket has a support edge that rests on the upper edge of the opening. The lower part of the slag collection basket is accommodated in the drainage area. A drain outlet is opened at the bottom of the box, and the bottom of the slag collection basket is detachably locked at the edge of the drain outlet. With the above structure, the third part can be limited. After the slag basket is removed, the limitation on the third part can be released, making it easy to disassemble the third part.

[0031] Compared with the prior art, the advantages of the present invention are as follows: In order to adapt to the open water pump structure of the present invention, the present invention sets the drain plate into three parts that can be spliced ​​together. The first part is very small in size, which makes it easy to assemble with the water supply pipe. The first part is constrained to the bottom of the box by the water supply pipe as a fixed part when it leaves the factory. The second and third parts cover the main area of ​​the drain area. The second part is locked to the box. When it is necessary to clean the drain area, only the third part can be removed, which is convenient to operate. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0033] Figure 2 This is a partial structural schematic diagram of an embodiment of the present invention;

[0034] Figure 3 This is a cross-sectional view of an embodiment of the present invention;

[0035] Figure 4 This is another cross-sectional view of an embodiment of the present invention;

[0036] Figure 5 for Figure 3 Enlarged view of section A;

[0037] Figure 6 This is a schematic diagram of the assembly structure of the water supply pipe and the drain plate according to an embodiment of the present invention;

[0038] Figure 7 for Figure 6 Exploded view;

[0039] Figure 8 This is a schematic diagram of the structure of the shell in an embodiment of the present invention;

[0040] Figure 9 This is a schematic diagram of the structure of the drain plate according to an embodiment of the present invention;

[0041] Figure 10 for Figure 9 The exploded diagram. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0043] like Figures 1-10 As shown, the cleaning machine in this embodiment includes a housing 6, a first water outlet structure, a second water outlet structure b, and a pumping mechanism a. The bottom of the housing 6 is provided with a recessed drainage area 61, and the top of the drainage area 61 is covered with a drainage plate 62. The pumping mechanism a is used to provide water outlet power for the first water outlet structure and the second water outlet structure b. The first water outlet structure is located at the bottom of the housing 6 and above the drainage plate 62. The second water outlet structure b is located above the first water outlet structure and is in fluid communication with the pumping mechanism a through a water supply pipe 7.

[0044] The aforementioned drain plate 62 includes a first part 62a, a second part 62b, and a third part 62c that can be spliced ​​together. The size of the first part 62a matches the outer dimensions of the water supply pipe 7. The bottom wall of the drain area 61 extends upward to form an assembly platform 616 arranged close to the lower wall of the first part 62a. Below the assembly platform 616 is a water distribution chamber 617 that is in fluid communication with the water pump mechanism a. The lower end of the water supply pipe 7 passes through the first part 62a and connects to the water distribution chamber 617, pressing the first part 62a tightly onto the assembly platform 616. The second part 62b is detachably connected to the bottom of the housing 6. A water distribution valve 8 is provided in the water distribution chamber 617 to control the water supply of the water supply pipe 7.

[0045] A U-shaped groove 621 is provided at the inner edge of the first part 62a. Correspondingly, a retaining edge 622 extends downward at the corresponding edge of the second part 62b to form a retaining edge 622 that can be engaged in the U-shaped groove 621. The second part 62b is locked to the bottom wall of the housing 6 by screws. With the above structure, on the one hand, it is convenient to splice the first part 62a and the second part 62b and maintain the sealing of the splice; on the other hand, at the time of manufacture, the connection between the water supply pipe 7 and the water distribution chamber 617 has been formed, that is, the first part 62a is constrained to the bottom of the housing 6 and cannot be disassembled. However, in order to facilitate the cleaning of the part in the drain area 61, the second part 62b needs to be disassembled. The retaining edge 622 of the second part 62b is pressed in the U-shaped groove 621. When disassembling the second part 62b, the screw locking relationship between the second part 62b and the housing 6 is removed, and the second part 62b can be directly moved upward and removed, which is convenient for disassembly and assembly.

[0046] The U-shaped groove 621 is formed by sinking the inner edge of the first part 62a, and in the assembled state, the upper wall surface of the first part 62a is substantially flush with the upper wall surface of the second part 62b at the joint. This structure is conducive to maintaining good water flow guiding effect and avoiding affecting the backwater effect by obstructing the water flow direction.

[0047] The assembly table 616 is provided with a water passing opening 6161 communicating with the water distribution cavity 617, the first part 62a is provided with an assembly opening 623 corresponding to the water passing opening 6161, the lower end of the water supply pipeline 7 is provided with a plug-in part 70 penetrating through the assembly opening 623 and sealingly connected with the water passing opening 6161, and a boss 701 capable of pressing on the first part 62a is formed at the joint of the water supply pipeline 70 and the plug-in part 70. This structure is conducive to improving the compactness and sealing of the connection between the water supply pipeline 7, the first part 62a, the assembly table 616 and the water distribution cavity 617. The inner wall of the assembly opening 623 is provided with a through-going upper and lower bayonet 6231, and correspondingly, the outer peripheral wall of the plug-in part 70 is provided with a protruding bayonet 702 capable of being clamped with the lower wall surface of the first part 62a through the bayonet 6231. This structure can prevent loosening between the water supply pipeline 7 and the first part 62a, affecting the positioning of the first part 62a, and also prevent the lower end of the water supply pipeline 7 from being separated.

[0048] The upper wall surface of the assembly table 616 is provided with an assembly sleeve 6162 extending upward around the water passing opening 6161, and in the assembled state, the outer peripheral wall of the plug-in part 70 is arranged close to the inner peripheral wall of the assembly sleeve 6162 with a sealing ring 703 therebetween. This structure is conducive to further improving the connection sealing.

[0049] The outer edge of the first part 62a of the present embodiment extends downward to form a first surrounding edge 624 arranged close to the inner peripheral wall of the water draining area 61, and the outer edge of the second part 62b extends downward to form a second surrounding edge 625 arranged close to the inner peripheral wall of the water draining area 61. This structure can improve the compactness of the connection between the water draining plate 62 and the box body 6, and avoid the accumulation of residues at the connection gap between the two.

[0050] The third part 62c is arranged close to the second edge of the water draining area 61 opposite to the first edge and is mutually spliced with the second part 62b, and the third part 62c is detachably constrained on the box body 6. The joint of the second part 62b and the third part 62c is provided with a mounting opening 60 connected with the pump water mechanism a.

[0051] Specifically, the edge of the second part 62b is provided with a semicircular first notch 601, and the edge of the third part 62c is provided with a semicircular second notch 602, and the first notch 601 and the second notch 602 are opposite to each other to form the mounting port 60. In actual use, the second part 62b is locked on the bottom wall of the box body 6 by screws, and the third part 62c is directly placed at the edge of the second part 62b and the water draining area 61.

[0052] The water pumping mechanism a has a supporting plate 44 arranged close to the lower edge of the mounting port 60, the first notch 601 is provided with a first protruding ring 6011 extending upward, the second notch 602 is provided with a second protruding ring 6021 extending upward, the first protruding ring 6011 and the second protruding ring 6021 are opposite to each other to form an assembly ring capable of being arranged around the periphery of the supporting plate 44, and the water draining plate 62 is provided with a clamping ring 603 which is detachably clamped on the supporting plate 44 and the lower edge of which is pressed on the first protruding ring 6011 and the second protruding ring 6021, and the clamping ring 603 is mounted on the supporting plate 44 by a buckle structure.

[0053] The first part 62a and the second part 62b are plastic parts, the first protruding ring 6011 and the second part 62b are integrally formed by injection molding, the third part 62c is a metal part, and the second protruding ring 6021 is a plastic part fusedly connected to the third part 62c. This structure is beneficial to improve the assembly compactness and practicability of the water draining plate.

[0054] The water pumping mechanism a of the embodiment includes an upper impeller 1, a lower impeller 2, an upper shell 3, a lower shell 4, and a driving member 5.

[0055] The upper part of the upper impeller 1 is a centrifugal impeller, and the lower part is an axial flow impeller. The lower impeller 2 is a centrifugal impeller.

[0056] The upper shell 3 is rotatably arranged above the water draining plate 62, and has a body extending in the length direction, the central part of the body has a first accommodating cavity 31 for mounting the upper part of the upper impeller 1, and the two sides of the body respectively have flow channels communicating with the first accommodating cavity 31, and the top wall of the upper shell 3 is provided with spray holes 32 communicating with the flow channels.

[0057] The lower shell 4 is connected below the upper shell 3, the upper part of the lower shell 4 has a second accommodating cavity 41 for mounting the lower part of the upper impeller 1, the side wall of the lower shell 4 is provided with a first water inlet 411 for water to enter the second accommodating cavity 41; the lower part of the lower shell 4 has a third accommodating cavity 42 for mounting the lower impeller 2, the bottom wall of the lower shell 4 is provided with a second water inlet 421 for water to enter the third accommodating cavity 42, and the side wall of the lower shell 4 is provided with a water outlet 422 for water to output from the third accommodating cavity 42, and the water outlet 422 communicates with the water distribution cavity 617.

[0058] The bottom of the lower shell 4 is arranged in the draining area 61 and has a water passing gap with the bottom wall of the draining area 61.

[0059] The bottom of the upper shell 3 is rotatably constrained on the clamping ring 603 by clamping. The clamping ring 603 facilitates the installation of the upper shell 3 and also presses the third part 62c on the second part 62b.

[0060] The second part 62b is provided with a U-shaped assembling groove 626 at the edge close to the third part 62c, and the corresponding edge of the third part 62c is extended downward to form a convex edge 627 which can be clamped in the assembling groove 626. The assembling groove 626 is formed by the edge of the second part 62b sinking, and in the assembled state, the upper wall surface of the second part 62b and the upper wall surface of the third part 62c are substantially flush at the joint.

[0061] The outer side wall of the assembling groove 626 is provided with a U-shaped flow guide opening 6261 which is communicated with the bottom of the assembling groove 626. Since the joint of the second part 62b and the third part 62c is located at the central part of the bottom of the box 6, the small food residues in the backflow water are easy to enter the gap between the second part 62b and the third part 62c. By means of the above structure, the small residues in the gap can be flushed into the draining area 61 by the beating force of the backflow water, so as to avoid the breeding of bacteria due to long-term non-cleaning.

[0062] The third part 62c is provided with a slag collecting basket 9, and the third part 62c is provided with an opening 628, the top of the slag collecting basket 9 has a supporting edge 91 which is supported on the edge of the opening 628, and the lower part of the slag collecting basket 9 is accommodated in the draining area 61. The bottom wall of the box 6 in the draining area 61 is concavely provided with a first accommodating groove 611 for mounting the lower part of the water pumping mechanism a, and a second accommodating groove 612 with a greater depth than the first accommodating groove 611 is provided beside the first accommodating groove 611, the lower part of the slag collecting basket 9 is accommodated in the second accommodating groove 612, and a drain port 613 is opened in the bottom of the second accommodating groove 612, and the outer bottom of the box 6 is provided with a drain valve and a drain pump structure which are in communication with the drain port 613. The side of the first accommodating groove 611 has an opening 6111 which is in communication with the side of the second accommodating groove 612, the first water inlet 411 of the water pumping mechanism a is located above the opening 6111, and a suction nozzle 40 which extends downwardly and obliquely to the opening 6111 is connected to the first water inlet 411, and the second water inlet 421 is located beside the opening 6111. The bottom of the second accommodating groove 612 is the lowest part of the draining area 61, and the drain port 613 is arranged at this position, which is beneficial to drain the residual water and avoid the storage of water to generate bacteria and the like; by arranging the first accommodating groove 611 and the second accommodating groove 612, the water suction position of the water pumping mechanism a is greatly reduced, the air bubbles are isolated above the water level, and the air bubbles sucked into the water flow can be avoided to affect the water flow lift; during the cleaning process, the water flow is conveyed to the water pumping mechanism a through the second accommodating groove 612 after being filtered by the slag collecting basket 9, the first accommodating groove 611 can also cooperate with the second accommodating groove 612 to play a flow guiding role on the basis of assembling the water pumping mechanism a, the suction nozzle 40 further reduces the water suction height, and is beneficial to reduce the energy loss and improve the water flow injection lift.

[0063] The bottom of the slag collecting basket 9 is detachably clamped at the edge of the drain port 613 by a buckle.

[0064] When the draining area 61 needs to be cleaned, only the third part 62c is disassembled, the clamping ring 603 is removed, the pressing force of the clamping ring 603 on the third part 62c is cancelled, the slag collecting basket 9 is taken out, the constraint force of the slag collecting basket 9 on the third part 62c is cancelled, and the third part 62c can be taken out by being lifted upward, which is convenient to operate.

[0065] The upper shell 3 of the embodiment forms a first water outlet structure, and the lower shell 4 constrains the first accommodating groove 611. The water supply pipeline 7 has a relatively independent first branch pipeline 71 and a second branch pipeline 72, the first branch pipeline 71 is used for conveying the water flow to the spray arms in the middle part of the box, and the second branch pipeline 72 is used for conveying the water flow to the spray arms on the top of the box, and the spray arms in the middle part of the box and the spray arms on the top of the box jointly constitute a second water outlet structure b to realize the spraying of the lower layer, the middle layer and the top layer, which is beneficial to improve the cleaning effect.

[0066] In use, the output shaft 51 of the driving member 5 is rotated to drive the upper impeller 1 and the lower impeller 2 to rotate. The axial flow blades at the lower part of the upper impeller 1 suck water from the second accommodating groove 612 of the draining area 61 through the suction nozzle 40 and the first water inlet 411 into the second accommodating cavity 41 and then upwardly into the first accommodating cavity 31. The water in the first accommodating cavity 31 is sprayed out through the spray holes 32 under the action of the upper part of the upper impeller 1. The lower impeller 2 sucks water from the second accommodating groove 612 of the draining area 61 through the second water inlet 421 into the third accommodating cavity 42 and then along the guide pipe 423 in the circumferential direction to the water outlet 422 for water supply pipe 7. The water supply pipe 7 upwardly supplies the water for top and / or middle spraying. The water falling back flows into the second accommodating groove 612 after being preliminarily filtered by the draining plate 62 and flows into the second accommodating groove 612 after being filtered by the diameter of the residue collecting basket 9.

[0067] In the description and claims of the present disclosure, terms are used to describe various example structural parts and elements of the present disclosure, such as "front", "back", "up", "down", "left", "right", "side", "top", "bottom", etc. These terms are used only for the convenience of description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present disclosure can be arranged in different directions, these terms indicating directions are only for illustration and should not be considered as limitation, such as "up", "down" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

[0068] The "fluid communication" in the present disclosure refers to the spatial positional relationship between two components or parts (hereinafter collectively referred to as first part and second part), i.e. the fluid (gas, liquid or mixture of both) can flow or / and be transported from the first part to the second part along the flow path. It can be directly connected between the first part and the second part, or indirectly connected between the first part and the second part through at least one third party, which can be a fluid passage such as a pipe, channel, conduit, flow guide, hole, groove, etc., or a chamber allowing fluid flow or a combination thereof.

Claims

1. A washing machine comprising a tank (6) provided with a recessed draining area (61) at the bottom, having a first edge and a second edge arranged opposite, the top of the draining area (61) being covered with a draining plate (62), a water pumping mechanism (a) for pumping the water of the draining area (61) above the draining plate (62), a water supply conduit (7) having its lower end arranged through the draining plate (62) and in fluid communication with the water pumping mechanism (a), characterized in that: The draining plate (62) comprises a first part (62a) arranged close to a first edge of the draining area (61) and positioned on the box (6) to provide an assembly area for the water supply pipe (7); a second part (62b) mutually spliced with the first part (62a) and locked on the box (6) through a detachable connecting structure; a third part (62c) arranged close to a second edge of the draining area (61) and mutually spliced with the second part (62b), the third part (62c) being detachably constrained on the box (6); the second part (62b) or the joint of the second part (62b) and the third part (62c) is provided with a mounting port (60) matched with the pump water mechanism (a); The pump water mechanism (a) comprises: an upper impeller (1); a lower impeller (2); an upper shell (3) having a first accommodating cavity (31) for mounting an upper part of the upper impeller (1), the upper shell (3) being provided with a spray hole (32) on a top wall and / or a side wall thereof in fluid communication with the first accommodating cavity (31); and a lower shell (4) connected below the upper shell (3), an upper part of the lower shell (4) having a second accommodating cavity (41) for mounting a lower part of the upper impeller (1), the second accommodating cavity (41) being in communication with the first accommodating cavity, a side wall of the lower shell (4) being provided with a first water inlet (411) for water entering the second accommodating cavity (41), the first water inlet (411) being located in the draining area, a lower part of the lower shell (4) having a third accommodating cavity (42) for mounting the lower impeller (2), a bottom wall of the lower shell (4) being provided with a second water inlet (421) for water entering the third accommodating cavity (42), a side wall of the lower shell (4) being provided with a water outlet (422) for water output from the third accommodating cavity (42), the water outlet (422) being in communication with the water supply pipe (7).

2. The cleaning machine of claim 1, wherein: The edge of the second part (62b) is provided with a semicircular first notch (601), and correspondingly, the edge of the third part (62c) is provided with a semicircular second notch (602), the first notch (601) and the second notch (602) being mutually opposite to form the mounting port (60).

3. The cleaning machine of claim 2, wherein: The pump water mechanism (a) has a supporting plate (44) arranged close to a lower edge of the mounting port (60), the first notch (601) is provided with a first protruding ring (6011) extending upward, the second notch (602) is provided with a second protruding ring (6021) extending upward, the first protruding ring (6011) and the second protruding ring (6021) are mutually opposite to form an assembly ring capable of being arranged around the periphery of the supporting plate (44), and the draining plate (62) is provided with a clamping ring (603) detachably clamped on the supporting plate (44) and having a lower edge pressed against the first protruding ring (6011) and the second protruding ring (6021).

4. The cleaning machine of claim 3, wherein: The second part (62b) is a plastic part, the first protruding ring (6011) is integrally formed with the second part (62b), the third part (62c) is a metal part, and the second protruding ring (6021) is a plastic part fusedly connected to the third part (62c).

5. The cleaning machine of claim 3, wherein: The bottom of the upper shell (3) is rotatably constrained on the ring (603).

6. The cleaning machine of any one of claims 1-5, wherein: The bottom wall of the draining area (61) extends upward to form a fitting table (616) arranged close to the lower wall surface of the first part (62a), and the fitting table (616) is provided below with a water distribution cavity (617) in fluid communication with the pump water mechanism (a), and the lower end of the water supply pipeline (7) is connected with the water distribution cavity (617) through the first part (62a) and presses the first part (62a) on the fitting table (616).

7. The cleaning machine of claim 6, wherein: A U-shaped groove (621) is arranged at the inner edge of the first part (62a), and correspondingly, a clamping edge (622) extending downward is arranged at the corresponding edge of the second part (62b) and can be clamped in the U-shaped groove (621).

8. The cleaning machine of claim 7, wherein: The U-shaped groove (621) is formed by sinking the inner edge of the first part (62a), and in the assembled state, the upper wall surface of the first part (62a) and the upper wall surface of the second part (62b) are substantially flush at the joint.

9. The cleaning machine of claim 6, wherein: The fitting table (616) is provided with a water passing opening (6161) in communication with the water distribution cavity (617), the first part (62a) is provided with a fitting opening (623) arranged corresponding to the water passing opening (6161), the lower end of the water supply pipeline (7) is provided with a plug-in part (70) sealingly connected with the water passing opening (6161) through the fitting opening (623), and the joint of the water supply pipeline (7) and the plug-in part (70) forms a boss (701) capable of pressing on the first part (62a).

10. The cleaning machine of claim 9, wherein: The inner wall of the fitting opening (623) is provided with a clamping opening (6231) penetrating upward and downward, and correspondingly, the outer peripheral wall of the plug-in part (70) is provided with a protruding clamping (702) capable of clamping the lower wall surface of the first part (62a) through the clamping opening (6231).

11. The cleaning machine of claim 9, wherein: The upper wall surface of the fitting table (616) is provided with a fitting sleeve (6162) extending upward around the water passing opening (6161), and in the assembled state, the outer peripheral wall of the plug-in part (70) is arranged close to the inner peripheral wall of the fitting sleeve (6162) and a sealing ring (703) is arranged therebetween.

12. The cleaning machine of any one of claims 2-5, wherein: The second part (62b) is provided with a U-shaped fitting groove (626) at the edge close to the third part (62c), and correspondingly, a protruding edge (627) extending downward is arranged at the corresponding edge of the third part (62c) and can be clamped in the fitting groove (626).

13. The cleaning machine of claim 12, wherein: The fitting groove (626) is formed by sinking the edge of the second part (62b), and in the assembled state, the upper wall surface of the second part (62b) and the upper wall surface of the third part (62c) are substantially flush at the joint.

14. The cleaning machine of claim 12, wherein: The outer side wall of the fitting groove (626) is provided with a U-shaped flow guide opening (6261) penetrating through the bottom of the fitting groove (626).

15. The cleaning machine of claim 12, wherein: The third part (62c) is provided with a slag collecting basket (9), the third part (62c) is provided with an opening (628), the top of the slag collecting basket (9) has a supporting edge (91) which is supported on the edge of the opening (628), the lower part of the slag collecting basket (9) is accommodated in the draining area (61), the bottom of the box (6) is provided with a drainage opening (613), and the bottom of the slag collecting basket (9) is detachably clamped at the edge of the drainage opening (613).

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