CN216776983U - A filtration and cleaning machine for cleaning machine - Google Patents

Abstract

The utility model relates to a filtering structure for a cleaning machine and the cleaning machine, wherein the filtering structure comprises a water return cavity and a filtering plate, the filtering plate covers the top of the water return cavity, the edge of the filtering plate is connected with a telescopic overlapping plate, the outer edge of the overlapping plate is provided with a first magnetic part, and the edge of the top of the water return cavity is provided with a second magnetic part capable of attracting the first magnetic part. The utility model provides a filtering structure capable of restraining a filtering plate at the top of a water return cavity through a self-attraction effect, wherein a telescopic overlapping sheet is arranged at the edge of the filtering plate, when the filtering plate is placed at the top of the water return cavity, a first magnetic part and a second magnetic part attract each other to limit the filtering plate, and the overlapping sheet can automatically stretch and retract to adapt according to the size of an opening at the top of the filtering plate and the top of the water return cavity, so that the filtering structure is convenient to disassemble and assemble, the sealing property of the connection between the filtering plate and the top edge of the water return cavity can be always kept, residues are prevented from entering the water return cavity to participate in water return, the blockage of a spray arm is avoided, and the cleaning degree is improved.

Description

A filtration and cleaning machine for cleaning machine

Technical Field

The utility model relates to the technical field of kitchen electrical appliances, in particular to a filtering structure for a cleaning machine and the 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 at present are generally divided into a table type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the table type dish-washing machine is an integral independent structure and is generally placed on a table top for use; the cupboard type dishwasher is also a separate structure, but needs to be embedded into a kitchen cabinet for use; the sink dishwasher is combined with a sink and is generally installed in a kitchen cabinet for use.

The structure of the water tank type cleaning machine on the market at present is mainly the structure mentioned in the prior application CN201310750968.1 water tank type cleaning machine of the applicant, and comprises a box body forming a washing space, wherein the box body comprises a water tank body and a cover plate rotationally connected to the water tank body, the bottom of the water tank body is at least provided with a concave draining area at the central part, 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 spraying arm which is communicated with the water pump through fluid and is provided with a water outlet hole is arranged above the draining plate. In addition, in order to further improve the cleaning effect, the prior applications CN201810334714.4 and CN201810334713.x "tank structure of water tank type cleaning machine" of the applicant are provided with a heating plate capable of heating water in the draining area on the bottom of the water tank body in addition to the above structure; in order to facilitate slag discharge, a slag basket arranged corresponding to the water discharge opening is arranged at the bottom of the draining area.

The drain board in the current dish washer generally adopts interference fit's mode to be connected with the regional top of waterlogging caused by excessive rainfall, perhaps directly take the drain board to put at the regional top of waterlogging caused by excessive rainfall, the slag collection basket of installation on the rethread drain board is located the joint with the drain and will retrain the drain position, the dismouting of not only being not convenient for, the assembly reliability is poor, and receive the influence of drain board production back dimensional error, after the connection, the junction in drain board edge and the drain region often has great gap, can lead to partial residue to get into the regional backwater of waterlogging caused by excessive rainfall from this gap department, and then the orifice that will spray the arm blocks up, cause secondary pollution, influence the cleanliness factor.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the utility model is to provide a filtering structure for a cleaning machine, which is convenient for dismounting the filtering plate and the top of a water return cavity, has good sealing performance at the joint, avoids the blockage of a spray arm and improves the cleanliness.

The second technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned filtering structure, aiming at the current situation of the prior art.

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

the utility model provides a filtration for cleaning machine, includes return water chamber and filter, the filter covers at the top in return water chamber, the edge of filter is connected with the telescopic overlapping flap, and the outward flange department of this overlapping flap is provided with first magnetic part, and is corresponding, the top edge in return water chamber is provided with the second magnetic part that can inhale mutually with first magnetic part.

Preferably, a first clamping groove extending along the circumferential direction is formed in the outer edge of the overlapping plate, correspondingly, the inner ring of the first magnetic part is embedded in the first clamping groove, and the outer ring of the first magnetic part is exposed out of the first clamping groove. This structure is favorable to improving the stability of being connected and the reliability between first magnetism spare and the overlap joint piece.

Preferably, the cross sections of the first clamping groove and the first magnetic part inner ring are formed into T-shaped structures matched with each other.

Preferably, a second clamping groove arranged towards the edge of the filter plate is formed in the edge of the top of the water return cavity, and the second magnetic piece is embedded in the second clamping groove. This structure is favorable to improving the assembly stability and the reliability of second magnetism spare.

Preferably, the top in return water chamber is provided with the overlap joint platform that the cross section is L column structure, the second draw-in groove is seted up on L column structure vertical part's inside wall, and under the state that finishes of assembling, the exposed lateral wall of second magnetic part flushes with L column structure vertical part's inside wall. The structure can provide mounting space for the filter plate and keep flat shaping of each assembling surface, so that the sealing performance is improved, and possible gaps of residue leakage are avoided.

Preferably, in an assembled state, the outer peripheral wall of the outer ring of the first magnetic member is matched with the exposed side wall of the second magnetic member in shape, the upper wall surface of the outer ring of the first magnetic member is flush with the upper wall surface of the edge of the overlapping sheet, and the lower wall surface of the outer ring of the first magnetic member is flush with the lower wall surface of the edge of the overlapping sheet. The structure is favorable for further improving the sealing property between the edge and the top of the water return cavity after the filter plate is installed.

In order to facilitate connection, the inner edge of the overlapping plate is welded and/or clamped with the outer edge of the filter plate, and the inner edge of the overlapping plate is overlapped above and/or below the filter plate in a welded state of the overlapping plate and the filter plate; the filter plate is provided with a bayonet, the inner edge of the lap joint is lapped on the filter plate and covers the bayonet, and the bottom of the lap joint is convexly provided with a clamping foot which can be matched and clamped with the bayonet. The filter is the metal sheet, the overlap joint piece is the sheet rubber, just the cross section of overlap joint piece has S-shaped structure. The structure is convenient for connection and is also beneficial to improving the sealing property.

The cleaning machine comprises a box body and the filtering structure, wherein the water return cavity is arranged at the bottom of the box body.

The cleaning machine also comprises a slag collecting basket, the lower part of the slag collecting basket is accommodated in the water return cavity, the upper end of the slag collecting basket is exposed out of the filter plate, the bottom of the box body is concavely provided with a flow guide area communicated with the water return cavity, the top of the flow guide area is provided with a baffle plate capable of covering the flow guide area, and the bottom of the box body is provided with a water pumping mechanism capable of pumping water from the water return cavity to the position above the baffle plate through the flow guide area. The water pumping mechanism is separately arranged with the water return cavity and the filter plate, namely, the water return cavity and the filter plate are independently arranged beside the water pumping mechanism, and the water pumping mechanism does not need to penetrate through the filter plate to be installed, so that convenience is provided for assembly; meanwhile, the baffle does not participate in filtering, so that the defect that residue is accumulated due to poor filtering effect at the driving mechanism is overcome, more and faster water flows are filtered by the filter plate and collected by the residue collecting basket, and the filtering and residue collecting effects are improved; because the water pumping mechanism is not arranged in the water return cavity, the limitation of the installation space is eliminated, the water suction surface of the water pumping mechanism is convenient to reduce, bubbles are prevented from entering the water return, and the performance of the water pump is improved.

In the above scheme, the water pumping mechanism comprises a spraying arm, an impeller assembly and a driving part, the spraying arm is arranged on the baffle, the upper part of the impeller assembly penetrates through the baffle and extends into the middle of the spraying arm, the lower part of the impeller assembly is positioned in a semi-closed space enclosed by the baffle and the diversion area, the driving part is arranged at the bottom of the box body, and the power output shaft penetrates through the diversion area and is connected with the impeller assembly. By adopting the structure, the semi-closed space formed by the baffle and the diversion area is utilized to form the open type non-pipeline water pump, so that the baffle can be conveniently detached to clean the interior of the water pump.

Preferably, the connection between the spray arm and the baffle is adjacent to and spaced from the filter plate. The spraying arm is arranged at the side of the filter plate without penetrating the filter plate, so that the assembly is convenient, the water pumping mechanism is not used for filtering, on one hand, the residue accumulation can be avoided, on the other hand, the water flow with the residue can be guided to the filter plate and the residue collecting basket by the maximum speed and the shortest path, and the residue collecting effect is favorably improved.

Preferably, the semi-closed space and a spray arm inner cavity for accommodating the upper part of the impeller assembly jointly form a pump cavity of the water pumping mechanism, and the joint of the diversion area and the water return cavity forms a water inlet part of the pump cavity. This structure is convenient for form no open water pump structure of pipeline.

Preferably, the upper surface of the baffle is smoothly connected with the inner bottom wall of the box body, and the edge of the baffle extends outwards and downwards at the position corresponding to the water inlet of the pump cavity to form a water guide surface arranged close to the side part of the slag collecting basket. The upper surface of the baffle is approximately flush with the bottom wall of the box body, so that the return water cannot be blocked, the return water can rapidly flow to the filter plate, the return water speed is favorably improved, and the accumulation of residues near the spray arm is avoided.

Preferably, the outer edge of the water guide surface is provided with a surrounding edge which can partially surround the side part of the slag collecting basket and extends longitudinally, and the height of the lower edge of the surrounding edge is lower than that of the water suction surface at the top of the slag collecting basket. The slag collecting basket is provided with a guide plate which inclines downwards from the edge to the middle of the center near the filter plate, the height of the lower edge of the guide plate is the height of the water absorbing surface of the slag collecting basket, the height of the lower edge of the surrounding edge is lower than that of the water absorbing surface, and the height of the water absorbing surface of the water pumping mechanism is actually reduced to be lower than that of the water absorbing surface of the slag collecting basket for collecting slag and returning water, so that air bubbles can be prevented from being absorbed, and the performance of the water pump is improved.

Preferably, the bottom wall of the spraying arm is provided with a water inlet, correspondingly, the middle part of the baffle is provided with a flow guide sleeve which is communicated up and down and is connected with the water inlet, and the lower part of the impeller assembly is positioned in the flow guide sleeve.

Preferably, the water pumping mechanism and the flow guide area are arranged at the central part of the bottom of the box body, and the water return cavity is arranged close to the edge of the bottom of the box body and is positioned beside the flow guide area. Because the top in water conservancy diversion region is covered by the baffle, adopt above-mentioned structure, even the box central part keeps leveling and does not have the assembly structure that can block residue and return water, be favorable to improving return water effect and collection sediment effect.

Preferably, the bottom of the water return cavity is recessed near the diversion area to form a slag collection area, a water outlet is formed in the bottom of the slag collection area, the lower portion of the slag collection basket is accommodated in the slag collection area, and the lower end of the slag collection basket is arranged corresponding to the water outlet. The side wall of the slag collecting area close to the diversion area forms a diversion slope surface which gradually inclines upwards along the water flow. The structure ensures that the shortest distance is kept between the water inlet of the water pumping mechanism and the backwater slag collecting position, and the water suction force of the water pumping mechanism can be furthest transmitted to the slag collecting basket, so that the water passing amount of the slag collecting basket is improved, and the slag collecting effect and the backwater effect are improved.

Preferably, the backwater chamber is a rectangular area, a first end of the rectangular area is arranged close to one corner of the box body, a second end of the rectangular area is arranged close to the middle of the box body, and the slag collecting area is arranged close to the first end of the rectangular area. The arrangement mode is favorable for forming excellent filtering and slag collecting effects.

Preferably, the bottom of the box body is provided with a heating element which is positioned in the water return cavity and is arranged close to the second end of the rectangular area.

Preferably, the inner bottom wall of the box body is gradually inclined downwards from the edge to the water return cavity to form a flow guide surface. Preferably, the upper surface of the filter plate is gradually inclined downwards from the edge to the slag collecting basket to form a flow guide inclined surface.

Preferably, the bottom of the box body is provided with a water softener outlet which is positioned outside the water return cavity and is arranged close to the first end of the rectangular area.

As an improvement, the bottom of the water return cavity is provided with a water outlet arranged corresponding to the lower end of the slag collecting basket, the lower end of the power output shaft of the driving piece is exposed out of the bottom of the driving piece and is connected with a water drainage impeller, the bottom of the driving piece is provided with a water drainage cavity arranged around the water drainage impeller, and the water drainage cavity is communicated with the water outlet through a water guide pipeline. The structure can utilize the same driving mechanism to complete water return and drainage actions, and the whole structure is simplified.

Preferably, the side part of the drainage cavity is connected with a drainage pipe for draining water, and the bottom of the box body is provided with a valve capable of communicating or separating the drainage pipe.

Preferably, the height of the bottom wall of the flow guide area is not higher than that of the bottom wall of the water return cavity and lower than that of the water outlet. This structure can further avoid the bubble to get into the backwater.

Compared with the prior art, the utility model has the advantages that: the utility model provides a filtering structure which can restrain a filtering plate at the top of a water return cavity through a self-attraction effect, wherein the edge of the filtering plate is provided with a telescopic overlapping sheet, when the filtering plate is placed at the top of the water return cavity, a first magnetic part and a second magnetic part attract each other to limit the filtering plate, and in the process, the overlapping sheet can automatically stretch and adapt according to the size of an opening at the top of the filtering plate and the top of the water return cavity, so that the filtering structure is convenient to disassemble and assemble, the sealing property of the connection between the filtering plate and the top edge of the water return cavity can be always kept, residues are prevented from entering the water return cavity to participate in water return, the blockage of a spray arm is avoided, and the cleaning degree is improved; in addition, the precision requirement on the production sizes of the backwater cavity and the filter plate is reduced, and the production cost is favorably reduced.

Drawings

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

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic view of the hidden spray arm of FIG. 1;

FIG. 5 is a schematic diagram of the hidden filter plate of FIG. 4;

FIG. 6 is a schematic view of the hidden slag collection basket and the baffle of FIG. 5;

FIG. 7 is a schematic structural diagram of a baffle plate in an embodiment of the utility model;

FIG. 8 is an assembly view of the filter plate with the strap and the first magnetic member according to the embodiment of the present invention;

FIG. 9 is a cross-sectional view of FIG. 8;

FIG. 10 is an exploded view of FIG. 9;

fig. 11 is a schematic view of the filter structure in this embodiment.

Detailed Description

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

As shown in fig. 1 to 7, the cleaning machine of this embodiment includes a box 1 and a slag collecting basket 2, a bottom of the box 1 is provided with a recessed water return chamber 11, a top of the water return chamber 11 is covered with a filter plate 12, a lower portion of the slag collecting basket 2 is accommodated in the water return chamber 11, an upper end of the slag collecting basket 2 is exposed out of the filter plate 12, a flow guide area 13 communicated with the water return chamber 11 is concavely arranged at the bottom of the box 1, a baffle plate 3 capable of covering the flow guide area 13 is arranged at the top of the flow guide area 13, and a water pumping mechanism 4 capable of pumping water from the water return chamber 11 to the baffle plate 3 through the flow guide area 13 is arranged at the bottom of the box 1.

In this embodiment, the water pumping mechanism 4 is an open water pump, and includes a spray arm 41, an impeller assembly 42 and a driving member 43, the spray arm 41 is disposed on the baffle 3, the upper portion of the impeller assembly 42 is a centrifugal impeller for dispersing water in a flow channel of the spray arm along a circumferential direction, and the lower portion of the impeller assembly 42 is an axial impeller for pumping water in the diversion area 13 upward into the spray arm 41. The upper part of the impeller assembly 42 penetrates through the baffle 3 and extends into the spray arm 41, the lower part of the impeller assembly is positioned in a semi-closed space 100 enclosed by the baffle 3 and the diversion area 13, the driving part 43 is arranged at the bottom of the box body 1, and the power output shaft 431 penetrates through the diversion area 13 and is connected with the impeller assembly 42. By adopting the structure, the semi-closed space formed by the baffle 3 and the diversion area 13 is utilized to form the open type non-pipeline water pump, so that the baffle 3 can be conveniently detached to clean the inside of the water pump.

The connection of the spray arm 41 and the baffle 4 is spaced adjacent to the filter plate 12. The spraying arm 41 is arranged at the side of the filter plate 12 without passing through the filter plate 12, so that the assembly is convenient, the water pumping mechanism 4 is not used for filtering, on one hand, the accumulation of residues can be avoided, on the other hand, the water flow with the residues can be guided to the filter plate and the residue collecting basket 2 at the maximum speed and the shortest path, and the residue collecting effect is favorably improved.

The semi-closed space 100 and the inner cavity of the spray arm 41 for accommodating the upper part of the impeller assembly 42 together form a pump cavity of the water pumping mechanism 4, and the joint of the diversion area 13 and the water return cavity 11 forms a water inlet 401 of the pump cavity. This structure is convenient for form no open water pump structure of pipeline.

The upper surface of the baffle 3 of the embodiment is smoothly connected with the inner bottom wall of the box body 1, the edge of the baffle 3 extends outwards and downwards at the water inlet part 401 corresponding to the pump cavity to form a water guide surface 31 which is arranged close to the side part of the slag collecting basket 2, and the water guide surface 31 is a slightly concave cambered surface. The upper surface of the baffle 3 is approximately flush with the bottom wall of the box body 1, so that the backwater cannot be blocked, the backwater can rapidly flow to the filter plate 12, the backwater speed can be improved, and the accumulation of residues near the spray arm 41 can be avoided.

The outer edge of the water guide surface 31 is provided with a surrounding edge 32 which can partially surround the side part of the slag collecting basket 2 and extends longitudinally, and the height of the lower edge of the surrounding edge 32 is lower than that of the water suction surface at the top of the slag collecting basket 2. The slag collecting basket 2 is provided with a guide plate 21 which inclines downwards from the edge to the middle of the center at a position close to the filter plate 12, the height of the lower edge of the guide plate 21 is the height of a water absorbing surface of the slag collecting basket 2, the height of the lower edge of the surrounding edge 32 is lower than that of the water absorbing surface, and the height of the water absorbing surface of the water pumping mechanism 4 is actually reduced to be lower than that of the slag collecting surface and the backwater of the slag collecting basket 2, so that air bubbles can be prevented from being absorbed, and the performance of the water pump is improved.

The bottom wall of the spray arm 41 is provided with a water inlet 411, correspondingly, the middle part of the baffle 3 is provided with a flow guide sleeve 33 which is communicated up and down and is connected with the water inlet 411, and the lower part of the impeller component 42 is positioned in the flow guide sleeve 33. The spray arm 41 can be rotatably disposed on the top of the diversion sleeve 33 through a retainer ring, and the specific rotary connection structure is the prior mature technology and is not described again.

In this embodiment, the water pumping mechanism 4 and the diversion area 13 are disposed at the central portion of the bottom of the box 1, and the water return cavity 11 is disposed near the edge of the bottom of the box 1 and beside the diversion area 13. Because the top of the diversion area 13 is covered by the baffle 3, by adopting the structure, even if the central part of the box body 1 is kept flat and does not have an assembly structure which can block residues and backwater, the backwater effect and the slag collecting effect can be improved.

The bottom of the water return cavity 11 is recessed near the diversion area 13 to form a slag collection area 14, a water outlet 141 is opened at the bottom of the slag collection area 14, the lower part of the slag collection basket 2 is accommodated in the slag collection area 14, and the lower end of the slag collection basket is arranged corresponding to the water outlet 141. The slag collecting area 14 forms a diversion slope surface 142 which is gradually inclined upwards along the water flow near the side wall of the diversion area 13. The structure ensures that the shortest distance is kept between the water inlet 401 of the water pumping mechanism 4 and the backwater slag collecting position, and the water suction force of the water pumping mechanism 4 can be transmitted to the slag collecting basket 2 to the maximum extent, so that the water passing amount of the slag collecting basket 2 is improved, and the slag collecting effect and the backwater effect are improved.

The backwater chamber 11 of this embodiment is a rectangular area, a first end of the rectangular area is arranged near one corner of the box body 1, a second end of the rectangular area is arranged near the middle of the box body 1, and the slag collecting area 14 is arranged near the first end of the rectangular area. The arrangement mode is favorable for forming excellent filtering and slag collecting effects.

The bottom of the cabinet 1 is provided with a heating member 5 disposed in the return water chamber 11 near the second end of the rectangular area. The inner bottom wall of the box body 1 is gradually inclined downwards from the edge to the water return cavity 11 to form a flow guide surface 10. The upper surface of the filter plate 12 is gradually inclined downwards from the edge to the slag collecting basket 2 to form a flow guiding inclined surface 121. The bottom of the tank 1 is provided with a water softener outlet 6 which is positioned outside the backwater chamber 11 and is arranged close to the first end of the rectangular area.

The lower end of the power output shaft 431 of the driving member 43 of the present embodiment is exposed to the bottom of the driving member 43 and connected with the drainage impeller 7, the bottom of the driving member 43 is provided with a drainage cavity 430 arranged around the drainage impeller 7, and the drainage cavity 430 is communicated with the drainage port 141 through a water guiding pipe 432. The structure can utilize the same driving mechanism to complete water return and drainage actions, and the whole structure is simplified. The side of the drain chamber 430 is connected with a drain pipe for draining water, and the bottom of the case 1 is provided with a valve for connecting or cutting off the drain pipe.

The height of the bottom wall of the diversion area 13 is not higher than that of the bottom wall of the water return cavity 11 and lower than that of the bottom of the slag collecting area 14 and the water outlet 141. This structure can further avoid the bubble to get into the backwater.

The cleaning method of the embodiment is completed by applying the above cleaning method, and comprises the following steps:

(1) water is fed into the box body 1, and the water feeding is stopped after the water inflow reaches the requirement;

when the driving mechanism 4 operates, the power output shaft 431 rotates forwards to drive the impeller assembly 42 to rotate forwards, the impeller assembly 42 pumps water in the water return cavity 11 into the spray arm 41 through the flow guide region 13 and sprays the water upwards, and the sprayed water which falls down is filtered by the filter plate 12 again and enters the water return cavity 11 after being collected by the slag collection basket 2; in this process, the discharge impeller 7 idles without discharging water;

(2) after the washing is finished, the driving mechanism 4 operates, the power output shaft 431 rotates reversely, and the water in the water return cavity 11 is drained by the drainage impeller 7 through the drainage port 141, the water guide pipeline 432 and the drainage cavity 430; in the process, the impeller assembly 42 rotates reversely to form an air flow along the direction of the spray arm 41, the diversion area 13 and the water return cavity 11, and the air flow can improve the water drainage speed and the cleanliness.

The filtration of box 1 bottom in this embodiment can realize fine sealed to avoid the residue to get into return water cavity 11 and participate in the return water.

Specifically, as shown in fig. 8 to 11, the filter plate 12 covers the top of the water return chamber 11, the edge of the filter plate 12 is connected with the retractable overlapping plate 8, the outer edge of the overlapping plate 8 is provided with a first magnetic member 81, and correspondingly, the top edge of the water return chamber 11 is provided with a second magnetic member 82 capable of attracting the first magnetic member 81.

The outer edge of the strap 8 is provided with a first engaging groove 801 extending along the circumferential direction, and accordingly, the inner ring 811 of the first magnetic member 81 is inserted into the first engaging groove 801, and the outer ring 812 is exposed out of the first engaging groove 801. The cross sections of the first slot 801 and the inner ring 811 of the first magnetic element 81 are shaped into T-shaped structures matching each other. The top edge of the water return chamber 11 is provided with a second clamping groove 111 arranged towards the edge of the filter plate 12, and the second magnetic member 82 is embedded in the second clamping groove 111.

The top in this embodiment return water chamber 11 is provided with overlap joint platform 112 that the cross section is the L column structure, and second draw-in groove 111 is seted up on the inside wall of L column structure vertical part, and under the state that finishes of assembling, the exposed lateral wall of second magnetic part 82 flushes with the inside wall of L column structure vertical part. The above structure provides a space for the filter plate 12 and maintains the flat shape of the mounting surfaces therein to improve sealing and avoid possible gaps for residue leakage. In the assembled state, the outer peripheral wall of the outer ring 812 of the first magnetic member 81 is fitted to the exposed side wall of the second magnetic member 82, the upper wall of the outer ring 812 of the first magnetic member 81 is flush with the upper wall of the edge of the strap 8, and the lower wall of the outer ring 812 of the first magnetic member 81 is flush with the lower wall of the edge of the strap 8. This structure is advantageous to further improve the sealing between the edge and the top of the return water chamber 11 after the filter plate 12 is installed.

The filter plate 12 of this embodiment is a metal plate, the strap 8 is a rubber sheet, and the cross-section of the strap 8 has an S-shaped structure. For the convenience of connection, the inner edge of the overlapping flap 8 is welded and/or clamped with the outer edge of the filter plate 12, and the inner edge of the overlapping flap 8 is overlapped above and/or below the filter plate 12 in the state that the overlapping flap 8 is welded with the filter plate 12; under lapping plate 8 and the 12 looks joint state of filter, it has bayonet socket 120 to open on the filter 12, and the inward flange overlap joint of lapping plate 8 is on filter 12 and covers bayonet socket 120, and the protruding card foot 83 that can cooperate the joint with bayonet socket 120 that is equipped with in the bottom of lapping plate 8. The strap 8 of this embodiment is snap-fit to the filter panel 12.

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 parts and elements of the present invention, but these terms are used herein for convenience of description only and are determined based on 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 (26)

1. The utility model provides a filtration for cleaning machine, includes return water chamber (11) and filter (12), filter (12) cover is at the top of return water chamber (11), its characterized in that: the edge of filter (12) is connected with telescopic faying strap (8), and the outward flange department of this faying strap (8) is provided with first magnetism spare (81), and is corresponding, the top edge of return water chamber (11) is provided with second magnetism spare (82) that can inhale mutually with first magnetism spare (81).

2. The filtering structure for washing machines according to claim 1, characterized in that: the outer edge of the overlapping plate (8) is provided with a first clamping groove (801) extending along the circumferential direction, correspondingly, the inner ring (811) of the first magnetic part (81) is embedded in the first clamping groove (801), and the outer ring (812) is exposed out of the first clamping groove (801).

3. The filtering structure for washing machines according to claim 2, characterized in that: the cross sections of the first clamping groove (801) and the inner ring (811) of the first magnetic part (81) are formed into T-shaped structures matched with each other.

4. The filtering structure for washing machines according to claim 2, characterized in that: the edge of the top of the water return cavity (11) is provided with a second clamping groove (111) which is arranged towards the edge of the filter plate (12), and the second magnetic piece (82) is embedded in the second clamping groove (111).

5. The filtering structure for washing machines according to claim 4, characterized in that: the top in return water chamber (11) is provided with cross section for L column structure's overlap joint platform (112), second draw-in groove (111) are seted up on L column structure vertical part's inside wall, and under the state that finishes of assembling, the exposed lateral wall of second magnetism spare (82) flushes with L column structure vertical part's inside wall.

6. The filtering structure for washing machines according to claim 5, characterized in that: in the assembled state, the outer peripheral wall of the outer ring (812) of the first magnetic part (81) is matched with the exposed side wall of the second magnetic part (82) in shape, the upper wall surface of the outer ring (812) of the first magnetic part (81) is flush with the upper wall surface of the edge of the overlapping sheet (8), and the lower wall surface of the outer ring of the first magnetic part (81) is flush with the lower wall surface of the edge of the overlapping sheet (8).

7. A filter construction for a washing machine as claimed in any one of claims 1 to 6, characterized in that: the inner edge of the strap (8) is welded and/or clipped to the outer edge of the filter plate (12),

under the state that the lap joint sheet (8) is welded with the filter plate (12), the inner edge of the lap joint sheet (8) is lapped on and/or under the filter plate (12);

overlap joint piece (8) and filter (12) under the looks joint state, it has bayonet socket (120) to open on filter (12), the inward flange overlap joint of overlap joint piece (8) is on filter (12) and covers bayonet socket (120), the protruding card foot (83) that can cooperate the joint with bayonet socket (120) that are equipped with in bottom of overlap joint piece (8).

8. A filter construction for a washing machine as claimed in any one of claims 1 to 6, characterized in that: the filter (12) are metal plates, the overlapping plate (8) is a rubber sheet, and the cross section of the overlapping plate (8) is of an S-shaped structure.

9. A cleaning machine is characterized in that: the filter structure comprises a box body and the filter structure as claimed in any one of claims 1 to 8, wherein the water return cavity (11) is arranged at the bottom of the box body (1).

10. The cleaning machine of claim 9, wherein: the slag collecting device is characterized by further comprising a slag collecting basket (2), the lower portion of the slag collecting basket (2) is accommodated in the water return cavity (11), the upper end of the slag collecting basket is exposed out of the filter plate (12), a flow guide area (13) communicated with the water return cavity (11) is concavely arranged at the bottom of the box body (1), a baffle (3) capable of covering the flow guide area (13) is arranged at the top of the flow guide area (13), and a water pumping mechanism (4) capable of pumping water from the water return cavity (11) to the baffle (3) through the flow guide area (13) is arranged at the bottom of the box body (1).

11. The cleaning machine of claim 10, wherein: pump water mechanism (4) are including spray arm (41), impeller subassembly (42) and driving piece (43), spray arm (41) are located on baffle (3), impeller subassembly (42) upper portion passes baffle (3) and stretches into in spray arm (41), and the lower part is arranged in baffle (3) and water conservancy diversion region (13) and encloses synthetic semi-enclosed space (100), driving piece (43) are located box (1) bottom and power output shaft (431) and are passed water conservancy diversion region (13) and are connected with impeller subassembly (42).

12. The cleaning machine of claim 11, wherein: the connection part of the spray arm (41) and the baffle (3) is adjacent to the filter plate (12) and arranged at intervals.

13. The washing machine as claimed in claim 11, wherein: the semi-closed space (100) and the inner cavity of the spray arm (41) for accommodating the upper part of the impeller assembly (42) jointly form a pump cavity of the water pumping mechanism (4), and the joint of the diversion area (13) and the water return cavity (11) forms a water inlet (401) of the pump cavity.

14. The cleaning machine of claim 13, wherein: the upper surface of the baffle (3) is smoothly connected with the inner bottom wall of the box body (1), and the edge of the baffle (3) outwards and downwards extends at the position (401) corresponding to the water inlet of the pump cavity to form a water guide surface (31) which is arranged close to the side part of the slag collecting basket (2).

15. The cleaning machine of claim 14, wherein: the outer edge of the water guide surface (31) is provided with a surrounding edge (32) which can partially surround the side part of the slag collecting basket (2) and longitudinally extends, and the height of the lower edge of the surrounding edge (32) is lower than that of the water suction surface at the top of the slag collecting basket (2).

16. The cleaning machine of claim 11, wherein: the water inlet (411) is formed in the bottom wall of the spraying arm (41), correspondingly, the middle of the baffle (3) is provided with a flow guide sleeve (33) which is vertically communicated and is connected with the water inlet (411), and the lower part of the impeller assembly (42) is located in the flow guide sleeve (33).

17. The cleaning machine of any one of claims 10-16, wherein: the central part of box (1) bottom is located in pump water mechanism (4) and water conservancy diversion region (13), return water chamber (11) are close to the edge arrangement of box (1) bottom and are located the side of water conservancy diversion region (13).

18. The cleaning machine of claim 17, wherein: the bottom of the water return cavity (11) is recessed near the diversion area (13) to form a slag collection area (14), a water outlet (141) is formed in the bottom of the slag collection area (14), the lower portion of the slag collection basket (2) is accommodated in the slag collection area (14), and the lower end of the slag collection basket is arranged corresponding to the water outlet (141).

19. The washing machine as claimed in claim 18 wherein: the water return cavity (11) is a rectangular area, the first end of the rectangular area is close to one corner of the box body (1) to be arranged, the second end of the rectangular area is close to the middle of the box body (1) to be arranged, and the slag collecting area (14) is close to the first end of the rectangular area to be arranged.

20. The cleaning machine of claim 19, wherein: the bottom of the box body (1) is provided with a heating element (5) which is positioned in the water return cavity (11) and is close to the second end of the rectangular area for arrangement.

21. The cleaning machine of claim 19, wherein: the inner bottom wall of the box body (1) is gradually inclined downwards from the edge to the water return cavity (11) to form a flow guide surface (10).

22. The cleaning machine of claim 19, wherein: the water softener outlet (6) which is positioned outside the water return cavity (11) and is arranged close to the first end of the rectangular area is arranged at the bottom of the box body (1).

23. The cleaning machine of any one of claims 10-16, wherein: the upper surface of the filter plate (12) is gradually inclined downwards from the edge to the slag collecting basket (2) to form a flow guide inclined plane (121).

24. The cleaning machine of any one of claims 11-16, wherein: the bottom of the water return cavity (11) is provided with a water outlet (141) arranged corresponding to the lower end of the slag collecting basket (2), the lower end of a power output shaft (431) of the driving piece (43) is exposed out of the bottom of the driving piece (43) and is connected with a water discharge impeller (7), the bottom of the driving piece (43) is provided with a water discharge cavity (430) arranged around the water discharge impeller (7), and the water discharge cavity (430) is communicated with the water outlet (141) through a water guide pipeline (432).

25. The cleaning machine of claim 24, wherein: the lateral part of the drainage cavity (430) is connected with a drainage pipe for water to drain away, and the bottom of the box body (1) is provided with a valve which can communicate or separate the drainage pipe.

26. The cleaning machine of claim 24, wherein: the height of the bottom wall of the flow guide area (13) is not higher than that of the bottom wall of the water return cavity (11) and is lower than that of the water outlet (141).

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