CN116236135A - A filtration and cleaning machine for cleaning machine - Google Patents

Abstract

The invention relates to a filtering structure for a cleaning machine and the cleaning machine, wherein the filtering structure comprises a water return cavity and a filter plate, the filter plate is covered at the top of the water return cavity, the edge of the filter plate is connected with a telescopic lapping sheet, the outer edge of the lapping sheet is provided with a first magnetic piece, and the top edge of the water return cavity is provided with a second magnetic piece which can attract the first magnetic piece. The invention provides a filtering structure capable of restraining a filter plate at the top of a backwater cavity through self-priming action, the edge of the filter plate is provided with a telescopic bonding sheet, when the filter plate is placed at the top of the backwater cavity, a first magnetic part and a second magnetic part are attracted to limit the filter plate, and the bonding sheet can automatically stretch and retract to adapt according to the size of an opening at the top of the backwater cavity, so that the filtering structure is convenient to assemble and disassemble, can always maintain the tightness of connection between the filter plate and the edge of the top of the backwater cavity, prevents residues from entering the backwater cavity to participate in backwater, and is beneficial to avoiding blocking of a spray arm and improving the cleanliness.

Description

A filtration and cleaning machine for cleaning machine

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a filtering structure for a cleaning machine and the cleaning machine.

Background

With the increasing level of living of people, dish washers are increasingly entering home as household electrical appliances for kitchen use. The existing dish-washing machines on the market are generally divided into three types of a desk type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the desk type dish-washing machine is of an integral independent structure and is generally placed on a desk for use; the cabinet type dish washer is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the tub dishwasher is combined with a tub and is generally installed in a kitchen cabinet.

The structure of the sink type cleaning machine on the market at present is mainly the structure mentioned in the prior application CN201310750968.1 of the applicant, and comprises a box body for forming a cleaning space, wherein the box body comprises a sink body and a cover plate rotatably connected to the sink body, the bottom of the sink body is provided with a concave draining area at least at the central part, a water pump for discharging a water pump in the draining area to the cleaning 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 in fluid communication with the water pump and provided with water outlet holes is arranged above the draining plate. In order to further improve the cleaning effect, the applicant's prior applications CN201810334714.4, CN201810334713.X "tank structure of tank-type cleaning machine" set a heating plate capable of heating water in the draining area at the bottom of the tank body on the basis of the above-mentioned structure; in order to facilitate slag discharge, a slag basket which is arranged corresponding to the water discharge opening is arranged at the bottom of the water discharge area.

The draining board in the existing dish washer is generally connected with the top of the draining area in an interference fit mode, or the draining board is directly arranged at the top of the draining area, the position of the draining board is restrained by clamping the slag collecting basket arranged on the draining board with the water outlet, the draining board is inconvenient to assemble and disassemble, assembly reliability is poor, the draining board is affected by size errors after being produced, after connection, a large gap is often formed at the connection position of the edge of the draining board and the draining area, partial residues possibly enter the draining area from the gap to participate in backwater, and then spray holes of a spray arm are blocked, secondary pollution is caused, and the cleanliness is affected.

Disclosure of Invention

The invention aims to solve the first technical problem of the prior art, and provides a filtering structure for a cleaning machine, which is convenient to disassemble and assemble a filtering plate and the top of a backwater cavity, has good sealing property at the joint, and can avoid blockage of a spray arm and improve the cleanliness.

The second technical problem to be solved by the invention is to provide a cleaning machine with the filtering structure aiming at the current state of the art.

The invention solves at least one of the technical problems by adopting the following technical proposal:

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 telescopic strap, and the outward flange department of this strap is provided with first magnetic part, and correspondingly, 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 strap, and correspondingly, the inner ring of the first magnetic piece is embedded in the first clamping groove, and the outer ring is exposed out of the first clamping groove. This structure is favorable to improving the connection stability and the reliability between first magnetic part and the strap.

Further preferably, the cross sections of the first clamping groove and the inner ring of the first magnetic piece are shaped into T-shaped structures matched with each other.

Preferably, a second clamping groove which is arranged towards the edge of the filter plate is formed in the top edge of the backwater cavity, and the second magnetic piece is embedded in the second clamping groove. The structure is favorable for improving the assembly stability and reliability of the second magnetic part.

Preferably, the top of 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 the inside wall of L column structure vertical portion, and under the assembly state, the exposed lateral wall of second magnetic part flushes with the inside wall of L column structure vertical portion. The structure can provide installation space for the filter plate and keep the flat shaping of each assembly surface so as to improve the tightness and avoid the possible gap of residue leakage.

Preferably, in the assembled state, the outer peripheral wall of the outer ring of the first magnetic member is in shape of the exposed side wall of the second magnetic member, 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 strap, 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 strap. The structure is favorable for further improving the tightness between the edge and the top of the backwater cavity after the filter plate is installed.

For facilitating the connection, the inner edge of the strap is welded and/or clamped with the outer edge of the filter plate, and in the state that the strap is welded with the filter plate, the inner edge of the strap is lapped above and/or below the filter plate; under the strap and the looks joint state of filter, open there is the bayonet socket on the filter, the overlap joint of the inner edge of strap is on the filter and cover the bayonet socket, the protruding card foot that can with bayonet socket cooperation joint that is equipped with in bottom of strap. The filter is the metal sheet, the strap is the sheet rubber, just the cross section of strap has S-shaped structure. The structure is convenient to connect and is beneficial to improving the tightness.

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

The cleaning machine further comprises a slag collecting basket, wherein the lower part of the slag collecting basket is accommodated in the backwater 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 diversion area communicated with the backwater cavity, the top of the diversion area is provided with a baffle plate capable of covering the diversion area, and the bottom of the box body is provided with a water pumping mechanism capable of pumping water from the backwater cavity to the upper part of the baffle plate through the diversion area. According to the invention, the water pumping mechanism, the water return cavity and the filter plate are arranged separately, namely, the water return cavity and the filter plate are independently arranged at the side of the water pumping mechanism, the water pumping mechanism does not need to pass through the filter plate for installation, and convenience is provided for assembly; meanwhile, the baffle is not involved in filtration, so that the defects of poor filtration effect and residue accumulation at the driving mechanism are overcome, more and quicker water flows are filtered through the filter plate and are collected through the residue collecting basket, and the filtration and residue collecting effects are improved; because the pump water mechanism is not installed in the backwater cavity, the limit of the installation space is eliminated, the water absorbing surface of the pump water mechanism is convenient to reduce, bubbles are prevented from entering backwater, and the performance of the water pump is improved.

In the above scheme, the pump water mechanism comprises a spray arm, an impeller assembly and a driving piece, wherein the spray arm is arranged on the baffle, the upper part of the impeller assembly penetrates through the baffle to extend into the spray arm, the lower part of the impeller assembly penetrates through a semi-closed space defined by the baffle and the diversion area, and the driving piece is arranged at the bottom of the box body and the power output shaft penetrates through the diversion area to be connected with the impeller assembly. By adopting the structure, the semi-closed space formed by the baffle plate and the diversion area is utilized to form an open type ductless water pump, so that the baffle plate is convenient to dismantle to clean the inside of the water pump.

Preferably, the connection of the spray arm and the baffle is adjacent to and spaced apart from the filter plate. The spray arm is arranged at the side of the filter plate without penetrating the filter plate, the assembly is convenient, the water pumping mechanism does not carry out filtering work, on one hand, residue accumulation can be avoided, on the other hand, water flow with residues can be guided to the filter plate and the residue collecting basket through maximum speed and shortest path, and the residue collecting effect is improved.

Preferably, the semi-closed space and the inner cavity of the spray arm for accommodating the upper part of the impeller assembly jointly form a pump cavity of the pump mechanism, and the joint of the diversion area and the water return cavity forms a water inlet of the pump cavity. This structure facilitates the formation of a pipeless open water pump structure.

Preferably, the upper surface of the baffle is smoothly connected with the bottom wall in 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 which is 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, and the return water can not be blocked, so that the return water can flow to the filter plate rapidly, the return water speed is improved, and the accumulation of residues near the spray arm is avoided.

Preferably, a surrounding edge which can partially surround the side part of the slag collecting basket and longitudinally extends is formed at the outer edge of the water guide surface, 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 is inclined downwards from the edge to the middle and is close to 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 the height of the water absorbing surface, the height of the water absorbing surface of the water pumping mechanism is actually reduced to be lower than the water absorbing surface of slag collecting basket, slag collecting and water returning, air bubbles can be prevented from being absorbed, and the performance of the water pump is improved.

Preferably, a water inlet is formed in the bottom wall of the spray arm, correspondingly, a guide sleeve which is vertically through and is connected with the water inlet is arranged in the middle of the baffle, and the lower part of the impeller assembly is positioned in the guide sleeve.

Preferably, the water pumping mechanism and the diversion area are arranged at the central part of the bottom of the tank body, and the backwater cavity is arranged close to the edge of the bottom of the tank body and is positioned beside the diversion area. Because the top of the diversion area is covered by the baffle, by adopting the structure, even if the central part of the box body is kept flat and an assembly structure which can block residues and backwater does not exist, the backwater effect and the slag collecting effect are improved.

Preferably, the bottom of the backwater cavity is recessed near the diversion area to form a slag collecting area, the bottom of the slag collecting area is provided with a water outlet, the lower part of the slag collecting basket is accommodated in the slag collecting area, and the lower end of the slag collecting basket is arranged corresponding to the water outlet. The side wall of the slag collecting area, which is close to the diversion area, forms a diversion slope surface which gradually inclines upwards along the water flow. The structure ensures that the water inlet part of the water pumping mechanism and the backwater slag collecting part keep the shortest distance, and the water absorption capacity of the water pumping mechanism can be furthest transmitted to the slag collecting basket, thereby improving the water passing amount of the slag collecting basket and the slag collecting effect and backwater effect.

Preferably, the water return cavity is a rectangular area, a first end of the rectangular area is close to one corner of the box body, a second end of the rectangular area is close to the middle of the box body, and the slag collecting area is close to the first end of the rectangular area. This arrangement is advantageous 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 gradually inclines downwards from the edge to the backwater cavity to form a diversion surface. Preferably, the upper surface of the filter plate gradually inclines downwards from the edge to the slag collecting basket to form a diversion inclined plane.

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

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

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

Preferably, the bottom wall of the diversion area is not higher than the bottom wall of the backwater cavity and lower than the water outlet. The structure can further avoid bubbles from entering the backwater.

Compared with the prior art, the invention has the advantages that: the invention provides a filtering structure capable of restraining a filter plate on the top of a backwater cavity through self-absorption, the edge of the filter plate is provided with a telescopic bonding sheet, when the filter plate is placed on the top of the backwater cavity, a first magnetic part and a second magnetic part are attracted to limit the filter plate, in the process, the bonding sheet can automatically stretch and retract to adapt according to the size of an opening of the filter plate and the top of the backwater cavity, so that the filter plate is convenient to assemble and disassemble, the tightness of connection between the filter plate and the top edge of the backwater cavity can be always maintained, residues are prevented from entering the backwater cavity to participate in backwater, and blockage of a spray arm and improvement of the cleanliness are facilitated; in addition, the precision requirement on the production size of the water return cavity and the filter plate is reduced, and the production cost is reduced.

Drawings

FIG. 1 is a schematic 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 view of the hidden filter board of FIG. 4;

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

FIG. 7 is a schematic view of a baffle plate according to an embodiment of the present invention;

FIG. 8 is an assembly view of a filter plate with a strap and a first magnetic member according to an 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 diagram of a filtering structure in this embodiment.

Detailed Description

The invention is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 7, the cleaning machine of this embodiment includes a box 1 and a slag collecting basket 2, a concave water return cavity 11 is provided at the bottom of the box 1, a filter plate 12 is covered at the top of the water return cavity 11, the lower part of the slag collecting basket 2 is accommodated in the water return cavity 11 and the upper end is exposed out of the filter plate 12, a diversion area 13 communicated with the water return cavity 11 is concavely provided at the bottom of the box 1, a baffle 3 capable of covering the diversion area 13 is provided at the top of the diversion area 13, and a water pumping mechanism 4 capable of pumping water from the water return cavity 11 to the upper part of the baffle 3 through the diversion area 13 is provided 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, where 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 the flow channel of the spray arm along the circumferential direction, and the lower portion of the impeller assembly 42 is an axial flow impeller for drawing water in the diversion area 13 upward into the spray arm 41. The upper part of the impeller assembly 42 penetrates through the baffle plate 3 to extend into the spray arm 41, the lower part of the impeller assembly is positioned in a semi-closed space 100 formed by enclosing the baffle plate 3 and the diversion area 13, the driving piece 43 is arranged at the bottom of the box body 1, and the power output shaft 431 penetrates through the diversion area 13 to be connected with the impeller assembly 42. By adopting the structure, the semi-closed space formed by the baffle plate 3 and the diversion area 13 is utilized to form an open type ductless water pump, so that the baffle plate 3 is convenient to dismantle to clean the inside of the water pump.

The junction of the spray arm 41 and the baffle 4 is adjacent to and spaced from the filter plate 12. The spray arm 41 is arranged beside the filter plate 12 without penetrating the filter plate 12, so that the assembly is convenient, the water pumping mechanism 4 does not perform filtering work, on one hand, residue accumulation can be avoided, and on the other hand, water flow with residues can be guided to the filter plate and the residue collecting basket 2 by maximum speed and shortest path, thereby being beneficial to improving the residue collecting effect.

The semi-enclosed 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 pump mechanism 4, and the joint of the diversion area 13 and the backwater cavity 11 forms a water inlet 401 of the pump cavity. This structure facilitates the formation of a pipeless open water pump structure.

The upper surface of the baffle plate 3 in this embodiment is smoothly connected with the inner bottom wall of the box body 1, the edge of the baffle plate 3 extends outwards and downwards at the corresponding water inlet 401 of the pump cavity to form a water guide surface 31 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 plate 3 is approximately flush with the bottom wall of the box body 1, and the return water can not be blocked, so that the return water can flow to the filter plate 12 quickly, the return water speed is improved, and the accumulation of residues near the spray arm 41 is avoided.

At the outer edge of the water guiding surface 31, a surrounding edge 32 which can partially surround the side part of the slag collecting basket 2 and longitudinally extends is formed, and the height of the lower edge of the surrounding edge 32 is lower than the height of the water absorbing surface at the top of the slag collecting basket 2. The slag collecting basket 2 is formed with a guide plate 21 which is inclined downwards from the edge to the middle near the filter plate 12, the height of the lower edge of the guide plate 21 is the height of the water absorbing surface of the slag collecting basket 2, the height of the lower edge of the surrounding edge 32 is lower than the height of the water absorbing surface, the height of the water absorbing surface of the water pumping mechanism 4 is actually reduced below the water absorbing surface of the slag collecting basket 2 for collecting slag and returning water, 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 guide sleeve 33 which is vertically penetrated and is connected with the water inlet 411, and the lower part of the impeller assembly 42 is positioned in the guide sleeve 33. The spray arm 41 is rotatably disposed on the top of the guide sleeve 33 through a collar, and the specific rotational connection structure is a mature technology in the prior art, and will not be described again.

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

The bottom of the water return cavity 11 is downwards concave to form a slag collecting area 14 near the diversion area 13, a water outlet 141 is formed at the bottom of the slag collecting area 14, the lower part of the slag collecting basket 2 is accommodated in the slag collecting area 14, and the lower end of the slag collecting basket is arranged corresponding to the water outlet 141. The side wall of the slag collecting region 14, which is close to the diversion region 13, forms a diversion slope 142 which gradually slopes upwards along the water flow. The structure ensures that the water inlet 401 of the water pumping mechanism 4 and the backwater slag collecting position keep the shortest distance, and the water absorption capacity of the water pumping mechanism 4 can be furthest transmitted to the slag collecting basket 2, thereby improving the water flow of the slag collecting basket 2 and the slag collecting effect and backwater effect.

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

The bottom of the box 1 is provided with a heating element 5 located in the return chamber 11 and arranged close to the second end of the rectangular area. The inner bottom wall of the box body 1 gradually inclines downwards from the edge to the backwater cavity 11 to form a diversion surface 10. The upper surface of the filter plate 12 gradually slopes downwards from the edge to the slag collecting basket 2 to form a diversion slope 121. The bottom of the tank body 1 is provided with a water softener outlet 6 which is positioned outside the water return cavity 11 and is arranged near 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 at the bottom of the driving member 43 and connected with the drain impeller 7, the bottom of the driving member 43 is provided with a drain cavity 430 arranged around the drain impeller 7, and the drain cavity 430 is communicated with the drain port 141 through a water guide pipe 432. The structure can utilize the same driving mechanism to complete water return and drainage actions, and the integral structure is simplified. The side of the drainage chamber 430 is connected with a drain pipe for supplying water and draining, and the bottom of the box 1 is provided with a valve capable of communicating or blocking the drain pipe.

The bottom wall of the diversion area 13 in this embodiment is not higher than the bottom wall of the backwater cavity 11 and lower than the bottom of the slag collecting area 14 and the water outlet 141. The structure can further avoid bubbles from entering the backwater.

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

(1) Water is fed into the box body 1, and water feeding is stopped after the water feeding amount meets the requirement;

the driving mechanism 4 operates, the power output shaft 431 rotates positively to drive the impeller assembly 42 to rotate positively, the impeller assembly 42 pumps water in the water return cavity 11 into the spray arm 41 through the diversion area 13 and sprays the water upwards, and the water falling after spraying is filtered by the filter plate 12 again and enters the water return cavity 11 after being collected by the slag collecting basket 2; in the process, the drainage impeller 7 idles and does not drain water;

(2) After the cleaning is finished, the driving mechanism 4 operates, the power output shaft 431 reversely rotates, and the water drainage impeller 7 drains the water in the water return cavity 11 through the water drainage port 141, the water guide pipeline 432 and the water drainage cavity 430; in this process, the impeller assembly 42 is reversed, and an air flow along the spray arm 41, the diversion area 13 and the water return cavity 11 is formed, and the air flow can improve the drainage speed and the drainage purity.

In this embodiment, the filtering structure at the bottom of the box body 1 can realize good sealing, so as to avoid residues from entering the water return cavity 11 to participate in water return.

Specifically, as shown in fig. 8 to 11, the filter plate 12 covers the top of the backwater cavity 11, the edge of the filter plate 12 is connected with a telescopic bonding sheet 8, a first magnetic member 81 is arranged at the outer edge of the bonding sheet 8, and a second magnetic member 82 which can attract the first magnetic member 81 is correspondingly arranged at the top edge of the backwater cavity 11.

The outer edge of the strap 8 is provided with a first catch groove 801 extending in the circumferential direction, and correspondingly, an inner ring 811 of the first magnetic member 81 is fitted in the first catch groove 801, and an outer ring 812 is exposed outside the first catch groove 801. The cross sections of the first clamping groove 801 and the inner ring 811 of the first magnetic member 81 are shaped into T-shaped structures which are matched with each other. A second clamping groove 111 arranged towards the edge of the filter plate 12 is formed in the top edge of the water return cavity 11, and the second magnetic piece 82 is embedded in the second clamping groove 111.

The top of the water return cavity 11 of this embodiment is provided with a lapping platform 112 with an L-shaped cross section, the second clamping groove 111 is disposed on the inner sidewall of the vertical portion of the L-shaped structure, and in the assembled state, the exposed sidewall of the second magnetic member 82 is flush with the inner sidewall of the vertical portion of the L-shaped structure. The above structure provides installation space for the filter plate 12 and maintains the flat shaping of the assembly surfaces therein to improve the sealing performance and avoid the existence of gaps where residue leakage is likely. In the assembled state, the outer peripheral wall of the outer ring 812 of the first magnetic member 81 is in agreement with the exposed side wall shape of the second magnetic member 82, the upper wall surface of the outer ring 812 of the first magnetic member 81 is flush with the upper wall surface of the edge of the strap 8, and the lower wall surface is flush with the lower wall surface of the edge of the strap 8. This configuration is advantageous for further improving the tightness between the edge of the filter plate 12 after installation and the top of the return water chamber 11.

The filter plate 12 of the present 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 ease of connection, the inner edge of the strap 8 is welded and/or snapped to the outer edge of the filter panel 12, the inner edge of the strap 8 overlapping above and/or below the filter panel 12 in the welded state of the strap 8 to the filter panel 12; in the state that the bonding jumper 8 is clamped with the filter plate 12, a bayonet 120 is formed in the filter plate 12, the inner edge of the bonding jumper 8 is lapped on the filter plate 12 and covers the bayonet 120, and clamping feet 83 which can be matched and clamped with the bayonet 120 are convexly arranged at the bottom of the bonding jumper 8. The strap 8 of this embodiment is connected to the filter plate 12 by a snap-fit connection.

In the description and claims of the present invention, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used 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 the example orientations shown in the drawings. Because the disclosed embodiments of the invention may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims (26)

1. A filtration for cleaning machine, includes return water chamber (11) and filter (12), filter (12) cover at the top in return water chamber (11), its characterized in that: the edge of the filter plate (12) is connected with a telescopic bonding sheet (8), a first magnetic piece (81) is arranged at the outer edge of the bonding sheet (8), and correspondingly, a second magnetic piece (82) which can be attracted with the first magnetic piece (81) is arranged at the top edge of the backwater cavity (11).

2. The filter structure for a cleaning machine according to claim 1, wherein: a first clamping groove (801) extending along the circumferential direction is formed in the outer edge of the lapping sheet (8), and correspondingly, an inner ring (811) of the first magnetic piece (81) is embedded in the first clamping groove (801), and an outer ring (812) is exposed out of the first clamping groove (801).

3. The filter structure for a cleaning machine according to claim 2, wherein: the cross sections of the first clamping groove (801) and the inner ring (811) of the first magnetic piece (81) are shaped into T-shaped structures which are matched with each other.

4. The filter structure for a cleaning machine according to claim 2, wherein: the top edge of the backwater 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 filter structure for a cleaning machine according to claim 4, wherein: the top of return water chamber (11) is provided with overlap joint platform (112) that the cross section is L column structure, second draw-in groove (111) are seted up on the inside wall of L column structure vertical portion, and under the assembled state, the exposed lateral wall of second magnetic part (82) flushes with the inside wall of L column structure vertical portion.

6. The filter structure for a cleaning machine according to claim 5, wherein: in the assembled state, the outer peripheral wall of the outer ring (812) of the first magnetic piece (81) is matched with the exposed side wall of the second magnetic piece (82), the upper wall surface of the outer ring (812) of the first magnetic piece (81) is kept flush with the upper wall surface of the edge of the bonding sheet (8), and the lower wall surface of the outer ring is kept flush with the lower wall surface of the edge of the bonding sheet (8).

7. The filter structure for a cleaning machine according to any one of claims 1 to 6, wherein: the inner edge of the lapping sheet (8) is welded and/or clamped with the outer edge of the filter plate (12),

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

under the strap (8) looks joint state with filter (12), open bayonet socket (120) on filter (12), the overlap joint of the inward flange of strap (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 strap (8).

8. The filter structure for a cleaning machine according to any one of claims 1 to 6, wherein: the filter plate (12) is a metal plate, the bonding sheet (8) is a rubber sheet, and the cross section of the bonding sheet (8) is of an S-shaped structure.

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

10. The cleaning machine of claim 9, wherein: still include album sediment basket (2), the lower part holding of album sediment basket (2) is in return water chamber (11) and the upper end exposes in filter (12), the concave water conservancy diversion region (13) that are linked together with return water chamber (11) that are equipped with in box (1) bottom, the top of this water conservancy diversion region (13) sets up baffle (3) that can cover it, box (1) bottom is provided with can be with water pump mechanism (4) on return water chamber (11) through water conservancy diversion region (13) pump to baffle (3).

11. The cleaning machine of claim 10, wherein: the water pumping mechanism (4) comprises a spray arm (41), an impeller assembly (42) and a driving piece (43), wherein the spray arm (41) is arranged on the baffle plate (3), the upper part of the impeller assembly (42) penetrates through the baffle plate (3) to extend into the spray arm (41), the lower part of the impeller assembly is positioned in a semi-closed space (100) formed by encircling the baffle plate (3) and the diversion area (13), and the driving piece (43) is arranged at the bottom of the box body (1) and a power output shaft (431) penetrates through the diversion area (13) to be connected with the impeller assembly (42).

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

13. The cleaning machine of claim 11, wherein: the semi-closed space (100) and the inner cavity of the spray arm (41) used for accommodating the upper part of the impeller assembly (42) jointly form a pump cavity of the pump mechanism (4), and the joint of the diversion area (13) and the backwater 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 plate (3) is smoothly connected with the inner bottom of the box body (1), and the edge of the baffle plate (3) extends outwards and downwards at the water inlet (401) of the corresponding 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 the height of the water suction surface at the top of the slag collecting basket (2).

16. The cleaning machine of claim 11, wherein: 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 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 positioned in the guide sleeve (33).

17. A cleaning machine as claimed in any one of claims 10 to 16 wherein: the water pumping mechanism (4) and the diversion area (13) are arranged at the central part of the bottom of the box body (1), and the backwater cavity (11) is arranged close to the edge of the bottom of the box body (1) and is positioned beside the diversion area (13).

18. The cleaning machine of claim 17, wherein: the bottom of return water chamber (11) is near the regional (13) department of water conservancy diversion and is concave formation album sediment region (14), and the bottom of this album sediment region (14) is opened there is outlet (141), the lower part holding of album sediment basket (2) is in this album sediment region (14) and the lower extreme corresponds outlet (141) and arranges.

19. The cleaning machine of claim 18, wherein: the backwater cavity (11) is a rectangular area, a first end of the rectangular area is close to one corner of the box body (1), a second end of the rectangular area is close to the middle of the box body (1), and the slag collecting area (14) is close to the first end of the rectangular area.

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

21. The cleaning machine of claim 19, wherein: the inner bottom wall of the box body (1) gradually inclines downwards from the edge to the backwater cavity (11) to form a diversion surface (10).

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

23. A cleaning machine as claimed in any one of claims 10 to 16 wherein: the upper surface of the filter plate (12) gradually inclines downwards from the edge to the slag collecting basket (2) to form a diversion inclined plane (121).

24. A cleaning machine as claimed in any one of claims 11 to 16 wherein: the bottom of return water chamber (11) is opened there is outlet (141) that corresponds album sediment basket (2) lower extreme and arranges, power take off shaft (431) lower extreme of driving piece (43) exposes in driving piece (43) bottom and is connected with drainage impeller (7), driving piece (43) bottom is provided with drainage chamber (430) that arrange around this drainage impeller (7), this drainage chamber (430) through drain pipe (432) with outlet (141) are linked together.

25. The cleaning machine of claim 24, wherein: the side part of the drainage cavity (430) is connected with a drain pipe for supplying water and draining, and the bottom of the box body (1) is provided with a valve capable of communicating or isolating the drain pipe.

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

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