CN111657811A - Cleaning machine - Google Patents

Abstract

The invention relates to a cleaning machine, which comprises a water tank body with a washing cavity, wherein a draining plate which enables the upper space and the lower space of the washing cavity to be relatively independently arranged is detachably arranged in the water tank body, a first water discharging opening is formed in the side wall of the water tank body, and a water inlet structure which can feed water into the washing cavity through the first water discharging opening is arranged outside the water tank body. When the draining board is placed in the water tank body, the lower space can be used for placing washed bowls and dishes, while the upper space can be used as an independent water tank or used for placing washed bowls, dishes, fruits and vegetables, and accumulated water can be discharged from the first water outlet; when the draining board is taken out from the water tank body, the water tank body can provide a larger cleaning space of a cleaning machine, at the moment, the water inlet structure can be used for feeding water through the first water outlet, the water outlet structure of the upper space and the water inlet structure of the washing cavity are integrated into a whole, the structure is more compact and reasonable, the utilization rate of the space in the water tank body is improved, and great convenience is brought to a user.

Description

Cleaning machine

Technical Field

The invention relates to a household electrical appliance for kitchen, in particular to a cleaning machine for washing tableware, vegetables or fruits.

Background

With the increasing living standard of people, the dish washing machine is used as a kitchen household appliance and is more and more introduced into families. The dish-washing machines on the market are generally divided into a table type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the table type dish-washing machine is an integral independent structure and is generally placed on a table top for use; the cabinet type dish washing machine is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the sink dishwasher is combined with a sink and is generally installed in a kitchen cabinet for use.

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

The water tank body of the existing water tank type cleaning machine is made of stainless steel materials, and the processing mode mainly comprises two modes of welding and deep drawing. For the welding process, the welding deformation of the stainless steel material is large, so that the dimensional precision of the water tank is difficult to control, the integral shape of the water tank body is limited, the structure of the water tank body is single, the development of more functional structures of the water tank type cleaning machine is further restricted, and the welding process has extremely high requirements on a welding die, low welding efficiency and high cost; for the drawing process, the drawing depth of the water tank is directly limited by the deformation limit of the stainless steel material, the depth of the water tank is generally smaller than the opening width of the water tank after the water tank is drawn by the drawing process, and the drawing depth of the water tank is difficult to be larger than the opening width of the tank body in the current worldwide process, so that the water tank occupies a large installation space of a kitchen when being installed, and the washing space of the water tank is limited to a great extent.

The water tank body made of plastic has strong plasticity, and the depth of the tank body is convenient to deepen as required, so that the kitchen space is effectively utilized. However, since the water pump of the cleaning machine is disposed at the bottom of the water tank body, the spray arm at the bottom of the water tank body needs to be installed and used in cooperation with the water pump, so that the depth of the water tank body is increased, but the space in the top area of the water tank body cannot be effectively utilized.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides a cleaning machine which can enable the upper space of a water tank body to be independently used and improve the space utilization rate of the water tank body.

The technical scheme adopted by the invention for solving the technical problems is as follows: a cleaning machine, including the basin body that has the washing chamber, its characterized in that: the detachable water tank is characterized in that a draining plate which enables the upper space and the lower space of the washing cavity to be relatively and independently arranged is detachably arranged in the water tank body, a first water drainage port for discharging water in the upper space is formed in the side wall of the water tank body, and a water inlet structure capable of feeding water into the washing cavity through the first water drainage port is arranged outside the water tank body.

Preferably, the first water discharge port is covered with a baffle plate, the baffle plate is provided with a second water discharge port and a water inlet positioned above the second water discharge port, the water inlet structure comprises a vertically arranged water inlet pipeline, and the upper end of the water inlet pipeline is communicated with the water inlet. The water inlet is arranged above the second water outlet so as to avoid the pollution of oil stains and the like to the water inlet.

As an improvement, a water return structure which can prevent water flow from splashing from the first water discharge port when the draining plate is taken out of the water tank body and the cleaning machine is in a cleaning state is arranged in the second water discharge port. When the draining plate is taken out of the water tank body, the water sprayed upwards by the spraying arm of the cleaning machine splashes on the inner wall of the water tank body and can be blocked back by the water returning structure, so that the water loss in the water tank is avoided.

Preferably, the water inlet pipeline is located at the rear side of the water returning structure, and the side wall of the water inlet pipeline is provided with water spray holes arranged corresponding to the water returning structure. Because the structure of returning water has great surface, the easy adhesion filth of long-term use adopts above-mentioned structure, can wash the structure of returning water when intaking at every turn, keeps the baffle clean, avoids causing the pollution to intaking.

Preferably, the outer side of the water tank body is further provided with an overflow protection device, the overflow protection device is provided with an inner cavity which at least can surround the part of the water inlet pipeline with the water spraying holes, and the inner cavity is communicated with the second water outlet. The water spray holes are positioned in the inner cavity, so that the waste water which washes the water return structure each time can be discharged through the overflow protection device, and the pollution to the water inflow is avoided.

Preferably, the overflow protection device comprises a housing having the inner cavity, an opening is formed in a side wall of the housing, the opening enables the second water outlet to be communicated with the inner cavity, an overflow protection cavity is formed in one side of the housing, the overflow protection cavity is communicated with the inner cavity, the inner bottom wall of the overflow protection cavity is lower than the inner bottom wall of the inner cavity, an overflow alarm capable of sensing the water level is arranged in the overflow protection cavity, and an overflow port is formed in the bottom wall of the overflow protection cavity. Due to the fact that the draining plate mainly plays a role in draining and filtering, if water on the draining plate cannot be drained timely, the function of the draining plate cannot be well embodied, after the structure is adopted, when the draining plate is placed in the water tank body, if accumulated water on the draining plate cannot be drained timely, whether the accumulated water is reported or not can be embodied through the alarm of the overflow protection device, and therefore the accumulated water can be drained smoothly and timely; after the draining plate is taken out of the water tank body, when the water level in the cleaning machine is higher than the first water drainage port, the overflow protection device is started, so that the user is reminded that the water quantity is too high.

Preferably, the top wall of the shell is provided with a ventilation opening, and a ventilation pipeline communicated with the ventilation opening and extending upwards from the ventilation opening is connected above the shell. The door body on the water tank body can be closed in the cleaning process to prevent sprayed water from splashing, hot air can be generated by heating the interior of the water tank body, if the hot air is not dredged, a high-pressure state can be formed in the water tank body inevitably, and the safety is affected.

In each of the above schemes, the water returning structure includes a first blocking piece and a second blocking piece which are spaced from each other up and down, two ends of the first blocking piece and two ends of the second blocking piece are respectively connected to the inner side wall of the second water outlet which is arranged oppositely, the outer edge of the first blocking piece is bent upwards and is connected with the inner top wall of the second water outlet so as to form a water returning cavity in an enclosing manner, and the outer edge of the second blocking piece is bent upwards so as to form a water returning groove. A first gap for water discharge is formed between the second baffle sheet and the inner bottom wall of the second water outlet, and a second gap for water discharge is formed between the upper edge of the water return groove and the lower wall surface of the first baffle sheet. When the draining plate is placed in the cleaning machine, the lower space and the upper space of the water tank body are relatively sealed, the lower space can be used for normally cleaning bowls, dishes and fruits and vegetables, the upper space is used as the water tank, accumulated water on the draining plate can be discharged through the first gap on the second water outlet, and when a large amount of water is accumulated on the draining plate, the accumulated water can also be discharged through the second gap; the draining plate is taken out of the water tank body, and under the cleaning state of the cleaning machine, the water sprayed upwards by the spraying arm can be blocked back at the water return cavity and the water return groove after splashing on the inner wall of the water tank body, so that the water flow is prevented from being discharged and the water quantity under the cleaning state is influenced.

Preferably, the width of the first gap in the vertical direction gradually increases from the inside to the outside. The first separation blade and the second separation blade are inclined upwards gradually from inside to outside along the water flow direction. This structure is favorable to avoiding the spray arm water of upwards spun to discharge through first clearance.

Preferably, the inner edge of the first baffle plate is provided with a downward bent rib, and the lower edge of the rib is aligned with the inner edge and the outer edge of the upper edge of the water return groove or is arranged lower than the upper edge of the water return groove. The inner wall surface of the flange is flush with the inner wall surface of the baffle. This structure is favorable to avoiding the spray arm water that upwards spouts to discharge through the second clearance.

For the convenience of assembly, the main part of baffle is located the outside of basin body and the baffle inboard has the grafting portion that can plant in first drain outlet, the second drain outlet is seted up on this grafting portion, the draw-in groove of arranging around grafting portion is seted up to the outer fringe of grafting portion, and the sealing washer that offsets with the lateral wall of basin body is embedded to this draw-in groove.

Preferably, the edge of the draining board is provided with a vertically arranged surrounding edge, and a plurality of water outlet holes which are arranged at intervals and correspond to the first water outlet and the second water outlet are formed in the surrounding edge. This apopore can also play the filtering action except having the drainage function, avoids disintegrating slag etc. to block up the second outlet.

As an improvement, the outer side wall of the draining plate is provided with a guide groove which can prevent water in the upper space from falling into the lower space, and the guide groove is respectively communicated with the water outlet and the second water outlet. The periphery of surrounding edge is provided with the sealing member that can support against with the inner wall phase-match of basin body, the guide way is formed on the lateral wall of this sealing member. By adopting the structure, the draining plate can seal and separate the upper space and the lower space when being placed in the water tank body, so that accumulated water in the upper space is directly discharged without entering the lower space to affect cleaning.

Compared with the prior art, the invention has the advantages that: the invention arranges the draining board in the sink body, the draining board divides the washing chamber into an upper space and a lower space which are relatively independent, when the draining board is arranged in the sink body, the lower space can be used for placing washed bowls and dishes, and the upper space can be used as an independent sink or used for placing washed bowls, dishes and fruits, and accumulated water can be discharged from the first water outlet; when the draining board is taken out from the water tank body, the water tank body can provide a larger cleaning space of a cleaning machine, at the moment, the water inlet structure can be used for feeding water through the first water outlet, the water outlet structure of the upper space and the water inlet structure of the washing cavity are integrated into a whole, the structure is more compact and reasonable, the utilization rate of the space in the water tank body is improved, and great convenience is brought to a user.

Drawings

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

FIG. 2 is a schematic view of the overflow protection device of FIG. 1 assembled with the tank body and the baffle;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is an enlarged schematic view of a portion of the structure of FIG. 3;

FIG. 5 is a schematic structural diagram of the hidden overflow protection device shown in FIG. 4;

FIG. 6 is a schematic view of the hidden baffle of FIG. 5;

FIG. 7 is a schematic structural diagram of a draining board in an embodiment of the present invention.

Detailed Description

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

As shown in fig. 1 to 7, the cleaning machine of the present embodiment is a water tank type cleaning machine, and is installed on a table top of a cabinet for use. The cleaning machine of the embodiment comprises a water tank body 1 with a washing cavity 10, and a spraying arm which is rotatably arranged at the bottom of the water tank body 1 is arranged in the water tank body 1. The sink body 1 is detachably provided with a draining plate 2 which enables an upper space 101 and a lower space 102 of the washing chamber 10 to be relatively independently arranged.

The side wall of the water tank body 1 of this embodiment is provided with a first water outlet 11 for discharging water in the upper space 101, and the water tank body 1 is externally provided with a water inlet structure 5 which can feed water into the washing chamber 10 through the first water outlet 11. Specifically, the first water discharge opening 11 is covered with a baffle 3, the baffle 3 is provided with a second water discharge opening 31 and a water inlet 35 located above the second water discharge opening 31, the water inlet structure 5 comprises a vertically arranged water inlet pipe 51, the upper end of the water inlet pipe 51 is communicated with the water inlet 35, and the water flow metering assembly 52 is arranged in the water inlet pipe 51. The water inlet 35 is provided above the second drain port 31 to prevent contamination of the water inlet 35 by oil stains and the like.

The second drain port 31 of the present embodiment is provided with a water returning structure 32 which prevents water from splashing out of the first drain port 11 when the draining plate 2 is taken out of the tank body 1 and the cleaning machine is in a cleaning state. When the draining board 2 is taken out from the water tank body 1, the water sprayed upwards by the spraying arm of the cleaning machine splashes on the inner wall of the water tank body 1 and can be blocked back by the water returning structure 32, so that the water loss in the water tank is avoided. The water inlet pipe 51 is located at the rear side of the water returning structure 32, and the sidewall of the water inlet pipe 51 is provided with two water spraying holes 511 arranged corresponding to the water returning structure 32, and the two water spraying holes 511 in the embodiment are arranged at intervals up and down. Because the structure 32 of returning water has great surface, the easy adhesion filth of long-term use adopts above-mentioned structure, can wash the structure 32 of returning water when intaking at every turn, keeps the baffle clean, avoids causing the pollution to intaking.

In this embodiment, an overflow protection device 4 is further disposed outside the sink body 1, the overflow protection device 4 has an inner cavity 42 capable of surrounding at least a portion of the water inlet pipe 51 having the water spraying holes 511, and the inner cavity 42 is communicated with the second water outlet 31. The water spray holes 511 are positioned in the inner cavity 42, so that the waste water which washes the water return structure 32 each time can be discharged through the overflow protection device 4, and the pollution to the water inlet is avoided. The overflow protection device 4 of the embodiment comprises a shell 43 with an inner cavity 42, an opening 431 is formed on the side wall of the shell 43 and enables the second water outlet 31 to be communicated with the inner cavity 42, an overflow protection cavity 44 which is communicated with the inner cavity 42 and is arranged with the inner bottom wall lower than the inner bottom wall of the inner cavity 42 is arranged on one side of the shell 43, an overflow alarm 45 capable of sensing the water level is arranged in the overflow protection cavity 44, and an overflow port 41 is formed on the bottom wall of the overflow protection cavity 44. The specific structure of the overflow protection cavity 44 and the matching structure of the overflow protection cavity and the inner cavity 42 in this embodiment can refer to the chinese patent with application number 201410849282.2 of the present applicant, which is not described herein again. Due to the fact that the draining plate 2 mainly plays a role in draining and filtering, if water on the draining plate 2 cannot be drained timely, functions of the draining plate 2 cannot be well embodied, after the structure is adopted, when the draining plate 2 is placed in the water tank body 1, if accumulated water on the draining plate 2 cannot be drained timely, whether alarm is given out through the overflow protection device 4 is achieved, and therefore the accumulated water can be drained smoothly and timely; when the draining board 2 is taken out from the water tank body 1, and when the water level in the cleaning machine is higher than the first water outlet 11, the overflow protection device 4 is started, so as to remind the user that the water amount is too high.

The top wall of the shell 43 of this embodiment is provided with a ventilation opening 432, and the upper portion of the shell 43 is connected with a ventilation pipeline 46 which is communicated with the ventilation opening 432 and extends upwards from the ventilation opening 432. Because the door body on the basin body 1 can be airtight in the cleaning process to prevent the water spill that sprays, and basin body 1 internal heating can produce steam, if not dredging, must make basin body 1 in form a high pressure state, influence safety, the inside and outside atmospheric pressure of basin body 1 can be balanced to ventilative mouthful 432 and ventilative pipeline 46 of this embodiment, ensures safe in utilizationly.

In this embodiment, the inner wall portion of the upper part of the water tub body 1 is formed as a first inclined surface 12 inclined gradually outward from the bottom to the top, and the inner wall surface of the baffle 3 is formed as a second inclined surface 33 matching with the first inclined surface 12. With this configuration, the water in the upper space 101 can be easily discharged, and the water sprayed upward from the spray arm in the cleaning state of the cleaning machine can be prevented from splashing. The second water outlet 31 is opened on the second inclined plane 33 and the inner bottom wall is inclined upward from inside to outside, and the water returning structure 32 is disposed in the second water outlet 31, which is beneficial to further enhance the above-mentioned water discharging and water returning functions. The water returning structure 32 of this embodiment includes a first blocking piece 321 and a second blocking piece 322 which are parallel from top to bottom and arranged at an interval, two ends of the first blocking piece 321 and two ends of the second blocking piece 322 are respectively connected to the inner side wall of the second water outlet 31 which is arranged oppositely, the outer edge of the first blocking piece 321 is bent upwards and is connected with the inner top wall of the second water outlet 31 so as to enclose a water returning cavity 323, and the outer edge of the second blocking piece 322 is bent upwards so as to form a water returning groove 324. The bent portions of the first and second blocking pieces 321, 322 are formed into an outwardly arched arc-shaped structure 300 to enhance the water returning performance and prevent dirt from accumulating. A first gap 325 for discharging water is formed between the second stopper 322 and the inner bottom wall of the second drain opening 31, and a second gap 326 for discharging water is formed between the upper edge of the return water tank 324 and the lower wall surface of the first stopper 321. When the draining board 2 is placed in the cleaning machine, the lower space 102 and the upper space 101 of the sink body 1 are relatively sealed, the lower space 102 can be used for normally cleaning dishes, fruits and vegetables, the upper space 101 is used as a sink, accumulated water on the draining board 2 can be discharged through the first gap 325 on the second water outlet 31, and when a large amount of water is accumulated on the draining board 2, the accumulated water can also be discharged through the second gap 326; taking out draining board 2 from basin body 1, under the cleaning machine cleaning state, spray arm makes progress spun rivers and can be kept off back in returning water cavity 323 and returning water tank 324 department after spattering on basin body 1 inner wall to avoid rivers discharge, influence the water yield under the cleaning state.

The width of the first gap 325 in the vertical direction gradually increases from the inside to the outside. The first blocking piece 321 and the second blocking piece 322 are both inclined upwards gradually from inside to outside along the water flow direction. This configuration is advantageous to prevent water sprayed upward from the spray arm from being discharged through the first gap 325. The inner edge of the first blocking piece 321 has a downward bent rib 3211, and the lower edge of the rib 3211 is aligned with the upper edge of the water returning groove 324 or is arranged lower than the upper edge of the water returning groove 324. The inner wall surface of the flange 3211 is flush with the inner wall surface of the baffle 3. This configuration is advantageous to prevent water sprayed upward from the spray arm from being discharged through the second gap 326. In order to facilitate assembly, the main body portion of the baffle 3 is disposed on the outer side of the sink body 1, the inner side of the baffle 3 is provided with an insertion portion 34 capable of being inserted into the first drain port 11, the second drain port 31 is opened on the insertion portion 34, the outer edge of the insertion portion 34 is provided with a clamping groove 341 arranged around the insertion portion 34, and a sealing ring 342 abutting against the outer side wall of the sink body 1 is embedded in the clamping groove 341.

In the present embodiment, the edge of the draining board 2 has a vertically arranged surrounding edge 21, and the surrounding edge 21 is opened with a plurality of water outlet holes 22 which are arranged at intervals and correspond to the first water outlet 11 and the second water outlet 31. This apopore 22 can also play the filtering action except having the drainage function, avoids disintegrating slag etc. to block up second outlet 31. The outer side wall of the draining board 2 is provided with a guide groove 23 for preventing water in the upper space 101 from falling into the lower space 102, and the guide groove 23 is respectively communicated with the water outlet 22 and the second water outlet 31. The periphery of the surrounding edge 21 is provided with a sealing piece 211 which can be matched and abutted with the inner wall of the water tank body 1, and a guide groove 23 is formed on the outer side wall of the sealing piece 211. With this structure, the draining plate 2 is placed in the sink body 1, and the upper space 101 and the lower space 102 are hermetically separated from each other, so that the accumulated water in the upper space 101 is directly discharged without entering the lower space 102 to affect the cleaning.

In the embodiment, the draining board 2 is arranged in the sink body 1, the draining board 2 divides the washing chamber 10 into an upper space 101 and a lower space 102 which are relatively independent, when the draining board 2 is arranged in the sink body 1, the lower space 102 can be used for placing washed dishes, and the upper space 101 can be used as a separate sink or used for placing washed dishes, fruits and vegetables, and accumulated water can be discharged from the second water outlet 31 and the overflow port 41; when the draining board 2 is taken out from the water tank body 1, the water tank body 1 can provide a larger cleaning machine cleaning space, at the moment, the water inlet structure 5 can be fed through the first water outlet 11, the water outlet structure of the upper space 101 and the water inlet structure of the washing chamber 10 are integrated into a whole, the structure is more compact and reasonable, the spraying arm of the cleaning machine upwards sprays water which is splashed on the inner wall of the water tank body 1 and can be blocked back by the water returning structure 32, the loss of water volume in the water tank is avoided, the structure of the embodiment improves the utilization rate of the space in the water tank body 1, and great convenience is brought for a user.

Claims (12)

1. A washing machine comprising a tank body (1) with a washing chamber (10), characterized in that: the detachable water tank is characterized in that a draining plate (2) which enables an upper space (101) and a lower space (102) of a washing cavity (10) to be arranged relatively and independently is arranged in the water tank body (1), a first water discharging opening (11) for discharging water in the upper space (101) is formed in the side wall of the water tank body (1), and a water inlet structure (5) which can feed water into the washing cavity (10) through the first water discharging opening (11) is arranged outside the water tank body (1).

2. The cleaning machine of claim 1, wherein: the water inlet structure is characterized in that the first water outlet (11) is covered with a baffle (3), the baffle (3) is provided with a second water outlet (31) and a water inlet (35) which is positioned above the second water outlet (31), the water inlet structure (35) comprises a vertically arranged water inlet pipeline (51), and the upper end of the water inlet pipeline (51) is communicated with the water inlet (35).

3. The cleaning machine of claim 2, wherein: the second water outlet (31) is provided with a water return structure (32) which can prevent water from splashing from the first water outlet (11) when the draining plate (2) is taken out of the water tank body (1) and the cleaning machine is in a cleaning state.

4. The cleaning machine of claim 3, wherein: the water inlet pipeline (51) is positioned at the rear side of the water returning structure (32), and the side wall of the water inlet pipeline (51) is provided with water spraying holes (511) which are arranged corresponding to the water returning structure (32).

5. The cleaning machine of claim 4, wherein: the water tank is characterized in that an overflow protection device (4) is further arranged on the outer side of the water tank body (1), the overflow protection device (4) is provided with an inner cavity (42) which can at least surround the part, provided with the water spraying holes (511), of the water inlet pipeline (51), and the inner cavity (42) is communicated with the second water outlet (31).

6. The cleaning machine of claim 5, wherein: the overflow protection device (4) comprises a shell (43) with an inner cavity (42), an opening (431) enabling the second water outlet (11) to be communicated with the inner cavity (42) is formed in the side wall of the shell (43), an overflow protection cavity (44) communicated with the inner cavity (42) and arranged with the inner bottom wall lower than the inner bottom wall of the inner cavity (42) is arranged on one side of the shell (43), an overflow alarm (45) capable of sensing the height of the water level is arranged in the overflow protection cavity (44), and an overflow opening (41) is formed in the bottom wall of the overflow protection cavity (44).

7. The cleaning machine of claim 6, wherein: the top wall of the shell (43) is provided with a ventilation opening (4321), and a ventilation pipeline (46) communicated with the ventilation opening (432) and extending upwards from the ventilation opening (432) is connected above the shell (43).

8. The cleaning machine of any one of claims 3 to 7, wherein: return water structure (32) including first separation blade (321), second separation blade (322) of upper and lower interval arrangement, the both ends of first separation blade (321), second separation blade (322) are connected respectively on the inside wall of second outlet (31) relative arrangement, thereby the outward flange of first separation blade (321) is upwards buckled and is linked up with the interior top wall of second outlet (31) and enclose synthetic water return chamber (323), thereby the outward flange of second separation blade (322) upwards buckles and forms water return groove (324).

9. The cleaning machine of claim 8, wherein: a first gap (325) for discharging water is formed between the second baffle plate (322) and the inner bottom wall of the second water outlet (31), and a second gap (326) for discharging water is formed between the upper edge of the return water tank (324) and the lower wall surface of the first baffle plate (321).

10. The cleaning machine of claim 9, wherein: the width of the first gap (325) in the vertical direction gradually increases from the inside to the outside.

11. The cleaning machine of claim 8, wherein: the inner bottom wall of the second water outlet (31) gradually inclines upwards from inside to outside, and the first blocking piece (321) and the second blocking piece (322) gradually incline upwards from inside to outside along the water flow direction.

12. The cleaning machine of claim 8, wherein: the inner edge of the first baffle sheet (321) is provided with a downward bent baffle edge (3211), and the lower edge of the baffle edge (3211) is aligned with the inner edge of the upper edge of the water return groove (324) or is arranged lower than the upper edge of the water return groove (324).

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