A cleaning machine

Abstract

The present application relates to a kind of cleaning machines, including sink body, the bottom of sink body is provided with lower water outlet and the lower water cavity connected below lower water outlet, the lower water cavity is provided with slag collecting basket, the bottom of the lower water cavity is provided with drain, further including backwater pipeline, the bottom of sink body is also provided with backwater inlet, the backwater pipeline is located outside sink body and is connected between backwater inlet and lower water cavity, the side wall of the lower water cavity is opened with water inlet opening and suction inlet opening, water inlet opening and suction inlet opening are arranged oppositely on the outer wall of lower water cavity, and water inlet opening is connected with water source, and suction inlet opening is connected with backwater pipeline.The backwater inlet and backwater pipeline are arranged in the bottom of sink body, which is convenient to switch between dishwasher and ordinary sink, and easy to use;And, compared with the existing ordinary sink, the modification in the sink body of the present application is only to open backwater inlet, and the overall structure is simple, and the modification cost is low;It is also beneficial to improve the filtering and slag collecting effect.

Description

Technical Field

[0001] This invention relates to the field of dishwasher technology, specifically to a cleaning machine. Background Technology

[0002] Currently, most kitchens have two sinks. If a sink-type dishwasher is installed, one sink is used as a regular sink, and the other is used as the dishwasher's washing tub. The washing tub has a spray system installed and cannot be used as a regular sink.

[0003] The applicant's earlier application CN202010900533.0, "A Washing Basket and a Sink with the Washing Basket," discloses a structure that allows the sink to be used as a dishwasher or as a regular sink. The washing basket includes a basket body with a washing chamber. The basket body has a flow channel extending from the bottom to the side. Spray holes are formed on the inner wall of the basket body for water to be sprayed out of the flow channel. A recessed circular water-drawing area is provided at the bottom of the basket body, which is connected to the flow channel. An impeller is provided in the water-drawing area to pump water from the bottom of the basket body into the flow channel. In use, the impeller rotates, drawing water from the bottom of the basket into the flow channel on the side of the basket, and further spraying the fruits, vegetables, or dishes in the basket through the spray holes. The washing basket and sink are easily integrated; placing the basket in the sink and closing the lid allows it to be used as an automatic dishwasher. When not needed, the basket is removed from the sink along with the lid, allowing it to be used as a regular sink.

[0004] The above structure is very convenient when switching between a dishwasher and a regular sink. However, when used as a dishwasher, it requires a specially structured cleaning basket and a complex drive mechanism installed at the bottom of the sink. The overall structure is complex and the production cost is high. At the same time, when using the cleaning basket, the water flow system inside the basket is independent of the sink, making it difficult to filter and collect residue, resulting in inconvenient residue removal. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a cleaning machine that integrates a water return system while retaining the original sink shape, thereby simplifying the overall structure, reducing costs, and facilitating switching between dishwashers and ordinary sinks.

[0006] The second technical problem to be solved by the present invention is to provide a cleaning machine that facilitates filtration and slag collection, in light of the current state of the prior art.

[0007] The technical solution adopted by the present invention to solve at least one of the above-mentioned technical problems is as follows:

[0008] A cleaning machine includes a water tank body. The bottom of the water tank body is provided with a drain outlet and a drain cavity connected below the drain outlet. A slag collection basket is provided in the drain cavity. A drain outlet is provided at the bottom of the drain cavity. The machine also includes a return water pipe. The bottom of the water tank body is also provided with a return water outlet. The return water pipe is located outside the water tank body and connects the return water outlet and the drain cavity. The side wall of the drain cavity has a water inlet connected to a water source and a water suction port connected to the return water pipe. The water inlet and the water suction port are arranged opposite to each other on the outer peripheral wall of the drain cavity.

[0009] Preferably, the slag collection basket is a sleeve-shaped structure with an upper port at the top and a closed bottom. The side of the slag collection basket is recessed inward at the corresponding water inlet to form a vertically arranged guide wall, and a water absorption zone is formed between the guide wall and the inner wall of the adjacent lower water chamber. This structure increases the volume of the water absorption zone, which is beneficial to improving the return water efficiency.

[0010] Preferably, a horizontally arranged water guide pipe is tangentially connected to the side wall of the lower water chamber. The inlet end of the water guide pipe corresponds to the water absorption area, and the outlet end of the water guide pipe is connected to the inlet end of the return water pipe. The inlet and absorption areas are symmetrically arranged, with the larger volume of the absorption area corresponding to a flat guide wall and the smaller space of the inlet area corresponding to an arc-shaped side wall of the slag collection basket. This increases the flushing effect of the inlet water on the slag collection basket, improves the return water efficiency, and allows for flushing of the slag collection basket from both sides, achieving self-cleaning and preventing the adhesion and accumulation of residue in the filter holes of the slag collection basket.

[0011] Preferably, the water guide pipe includes a first section, a second section, and a third section connected sequentially along the water flow direction, with their diameters gradually increasing. The inner portion of the first section is formed on the inner wall of the drain cavity and communicates with it, while the outer portion protrudes outside the drain cavity. The second section is a tapered section with a gradually increasing inner diameter, and the portion near the water inlet is integrally formed with the drain cavity. The third section is a straight cylindrical section. The inner portion of the first section and the water inlet portion of the second section together constitute the water intake. This structure helps to further accelerate the return water speed.

[0012] Preferably, an inlet pipe is provided outside the lower water chamber, connecting to the inlet opening and extending laterally. The extension direction of the inlet pipe is opposite to that of the guide pipe, and the flow direction of the fluid inside the pipe is also opposite. This structure facilitates the formation of vortices in the lower water chamber, improving the self-cleaning effect on the slag collection basket.

[0013] Preferably, the guide wall is arranged at an angle that gradually slopes downwards towards the center of the lower water cavity, and correspondingly, the distance between the guide wall and the inner wall of the lower water cavity gradually increases. Preferably, the top edge of the guide wall is provided with a guide edge extending outwards to the inner wall of the lower water cavity, and this guide edge is arranged at an angle that gradually slopes upwards from the upper edge of the guide wall. Filter holes are provided on each side wall of the slag collection basket, the guide wall, and the guide edge. The above structure is beneficial for expanding the filtration area and improving the flow guidance and filtration effect.

[0014] Preferably, the slag collection basket is equipped with a guide impeller that guides the fluid downwards along a spiral trajectory. The guide impeller includes a central shaft and guide blades spirally arranged on the outer peripheral wall of the shaft, with the outer edges of the guide blades close to the inner peripheral wall of the slag collection basket. This structure forms a spiral guiding channel, directionally guiding return water or sewage, which not only increases the return water or sewage velocity but also collects residue at the bottom of the slag collection basket, helping to prevent slag escape.

[0015] Preferably, the guide vanes extend downwards along the water absorption direction within the water absorption zone, close to the lower end of the guide wall, and are arranged close to the bottom of the slag collection basket. A slag collection zone is formed between the bottom of the guide vanes and the inner wall of the slag collection basket, opposite to the water absorption zone. When the sink is used as a dishwasher, the water absorption zone plays a crucial role. The above structure, with the water absorption zone and slag collection zone arranged opposite each other, prevents residue accumulation in the water absorption zone, thereby significantly improving water return efficiency.

[0016] Preferably, the diameter of the slag collection basket gradually decreases from top to bottom, and correspondingly, the distance between the side wall of the slag collection basket and the inner wall of the drainage cavity gradually increases from top to bottom.

[0017] Preferably, the sink body is equipped with a detachable spray arm. The bottom of the spray arm has a water inlet that can be connected to the return water inlet, and the top wall of the spray arm has spray holes. When the sink body is used as a dishwasher, the spray arm provides an upward spray of water, thereby expanding the spray range and improving the cleaning effect.

[0018] Preferably, the inner bottom wall of the water tank body is provided with a cover that can open or close the return water inlet. When the spray arm is installed above the return water inlet, the cover opens the return water inlet; when the spray arm is detached from the return water inlet, the cover closes the return water inlet. This structure facilitates the sealing of the return water inlet when the water tank body is used as a regular water tank, preventing residue from falling directly into the return water pipe.

[0019] For ease of installation, a hinge interface is provided on the inner bottom wall of the water tank body at the edge of the corresponding return water inlet. Correspondingly, a hinge part that matches the hinge interface is provided at the edge of the cover. The cover is rotatably connected to the edge of the return water inlet through the hinge part.

[0020] Preferably, when the cover closes the return water inlet, the upper wall of the cover is flush with the inner bottom wall of the water tank body. With this structure, when the water tank body is used as a regular water tank, it can form a structure identical to a conventional water tank, without affecting filtration, sludge collection, etc.

[0021] Preferably, the cleaning machine further includes a drive assembly for driving the cap to open or close relative to the return water inlet, the drive assembly being disposed on the spray arm and / or the cap and / or the water tank body. This structure enables automatic opening and closing of the return water inlet, facilitating operation and use.

[0022] More preferably, the driving component is a magnetic structure disposed on the spray arm, the cover and the water tank body.

[0023] Preferably, the magnetic attraction structure includes a first magnetic block, a second magnetic block, a third magnetic block, and a fourth magnetic block. The first magnetic block is disposed on the bottom wall of the water tank body and arranged near the return water inlet. The second magnetic block is disposed on the cover. The third magnetic block is disposed at the water inlet of the spray arm. The fourth magnetic block is disposed on the top wall of the spray arm. When the spray arm is disengaged from the return water inlet, the second magnetic block attracts the first magnetic block, thereby closing the return water inlet with the downward-folding cover. When the spray arm is connected to the return water inlet, the first magnetic block attracts the third magnetic block, thereby constraining the spray arm to the inner bottom wall of the water tank body. The second magnetic block attracts the fourth magnetic block, thereby opening the return water inlet with the upward-folding cover. Alternatively:

[0024] The magnetic attraction structure includes a first magnetic block, a second magnetic block, and a third magnetic block. The first magnetic block is located on the bottom wall of the water tank body and near the return water inlet. The second magnetic block is located on the cover, and the third magnetic block is located at the water inlet of the spray arm. When the spray arm is detached from the return water inlet, the second magnetic block attracts the first magnetic block, causing the return water inlet to be closed by the downward-folding cover. When the spray arm is connected to the return water inlet, the first magnetic block attracts the third magnetic block, constraining the spray arm to the inner bottom wall of the water tank body. During the downward placement of the spray arm, the second magnetic block attracts the third magnetic block, causing the return water inlet to be opened by the upward-folding cover. Alternatively:

[0025] The magnetic attraction structure includes a first magnetic block, an iron block, and a third magnetic block. The first magnetic block is located on the bottom wall of the water tank body and near the return water inlet. The iron block is located on the cover, and the third magnetic block is located at the water inlet of the spray arm. When the spray arm is detached from the return water inlet, the iron block attracts the first magnetic block, causing the return water inlet to be closed by the downward-folding cover. When the spray arm is connected to the return water inlet, the first magnetic block attracts the third magnetic block, constraining the spray arm to the inner bottom wall of the water tank body. During the downward placement of the spray arm, the iron block attracts the third magnetic block, causing the return water inlet to be opened by the upward-folding cover. This structure not only facilitates assembly and installation but also allows each magnetic block to automatically select and engage with the corresponding magnetic block in different states. Through this self-selection and engagement process, the automatic detachment or positioning of the spray arm and the automatic opening or closing of the cover to the return water inlet are simultaneously achieved, making operation very convenient.

[0026] Preferably, the return water pipe is equipped with a return water drive mechanism that can provide power for the return water.

[0027] Preferably, the bottom of the drain chamber is further provided with a drainage mechanism for quickly draining water from the drain chamber, and the upper end of the drainage mechanism is connected to the drain outlet. The drainage mechanism includes a drain pump and a traction valve, with the traction valve connected between the drain outlet and the drain pump. This structure facilitates rapid water drainage and ensures that the water tank body is free of residual water, maintaining its cleanliness.

[0028] Compared with the prior art, the advantages of the present invention are as follows: The present invention provides a return water inlet and a return water pipe at the bottom of the sink body. When the sink body needs to be used as a dishwasher, the lower water chamber is used as a return water chamber. The return water drive mechanism pumps the water filtered by the slag collection basket in the lower water chamber back to the sink body through the return water pipe and the return water inlet. When the sink body needs to be used as a regular sink, the water after filtration and slag collection in the lower water chamber is directly discharged into the drain pipe through the drain outlet, which facilitates switching between dishwasher and regular sink use and is convenient to use. Furthermore, compared with existing regular sinks, the only modification to the sink body of the present invention is the addition of a return water inlet, resulting in a simple overall structure and low modification cost. The oppositely arranged water inlet and water outlet on the side wall of the lower water chamber not only improve the filtration and slag collection effect but also flush the slag collection basket, achieving self-cleaning of the slag collection basket. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention (in the form of a dishwasher in use);

[0030] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention (in the form of a regular water tank).

[0031] Figure 3 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0032] Figure 4 This is a structural schematic diagram of Embodiment 1 of the present invention from another angle;

[0033] Figure 5 This is a partial cross-sectional view of Embodiment 1 of the present invention;

[0034] Figure 6 This is a cross-sectional view of Embodiment 1 of the present invention;

[0035] Figure 7 for Figure 6 A magnified view of a portion of the image;

[0036] Figure 8 This is an assembly diagram of the lower water chamber and the slag collection basket in Embodiment 1 of the present invention;

[0037] Figure 9 for Figure 8 A sectional view;

[0038] Figure 10 This is a schematic diagram of the lower water chamber in Embodiment 1 of the present invention;

[0039] Figure 11 for Figure 10 Another angle view;

[0040] Figure 12 This is an assembly diagram of the slag collection basket and guide impeller in Embodiment 1 of the present invention. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] Example 1:

[0043] like Figures 1-12 As shown, the cleaning machine in this embodiment includes a water tank body 1. The bottom of the water tank body 1 is provided with a drain outlet 11 and a drain cavity 12 connected below the drain outlet 11. A slag collection basket 2 is provided in the drain cavity 12, and a drain outlet 121 is provided at the bottom of the drain cavity 12.

[0044] like Figure 4 , 6As shown, the bottom of the sink body 1 is also provided with a return water inlet 13 and a return water pipe 14 connected below the return water inlet 13. The lower water chamber 12 and the return water pipe 14 are connected by a return water drive mechanism 3. When the sink body 1 needs to be used as a dishwasher, the lower water chamber 12 is used as a return water chamber. The return water drive mechanism 3 pumps the water filtered by the slag collection basket 2 in the lower water chamber 12 back to the sink body 1 through the return water pipe 14 and the return water inlet 13. When the sink body 1 needs to be used as a regular sink, the water in the lower water chamber 12 after filtration and slag collection is directly discharged into the drain pipe through the drain outlet 121, which facilitates switching between dishwasher and regular sink use and is convenient to use. Moreover, compared with the existing regular sink, the only modification in the sink body 1 of this embodiment is the opening of the return water inlet 13. The overall structure is simple and the modification cost is low. In order to meet the requirements of the return water chamber, the lower water chamber 12 can be appropriately enlarged to facilitate filtration and slag collection.

[0045] In this embodiment, the sink body 1 is equipped with a detachable spray arm 4. The bottom of the spray arm 4 has a water inlet 41 that can be connected to the return water inlet 13, and the top wall of the spray arm 4 has a spray hole 42. When the sink body 1 is used as a dishwasher, the spray arm 4 is installed to provide an upward spray of water, thereby expanding the spray range and improving the cleaning effect.

[0046] The inner bottom wall of the water tank body 1 is provided with a cover 5 that can open or close the return water inlet 13. When the spray arm 4 is installed above the return water inlet 13, the cover 5 opens the return water inlet 13; when the spray arm 4 is detached from the return water inlet 13, the cover 5 closes the return water inlet 13. With the above structure, it is convenient to close the return water inlet 13 when the water tank body 1 is used as a regular water tank, so as to prevent residue from falling directly into the return water pipe 14.

[0047] Specifically, a hinge interface 131 is provided on the inner bottom wall of the water tank body 1 at the edge corresponding to the return water inlet 13. Correspondingly, a hinge part 51 is provided at the edge of the cover 5 to match the hinge interface 131. The end of the hinge part 51 and the end of the hinge interface 131 rotate through a shaft and a shaft hole. The cover 5 is rotatably connected to the edge of the return water inlet 13 through the hinge part 51. When the cover 5 closes the return water inlet 13, the upper wall surface of the cover 5 is flush with the inner bottom wall of the water tank body 1. When the water tank body 1 is used as a regular water tank, this structure can form the same structure as a conventional ordinary water tank without affecting filtration, sludge collection, etc.

[0048] This embodiment also includes a drive assembly for opening or closing the cover 5 relative to the return inlet 13. The drive assembly is a magnetic structure disposed on the spray arm 4, the cover 5, and the water tank body 1. This structure enables automatic opening and closing of the return inlet 13, facilitating operation and use.

[0049] like Figures 6-9As shown, the aforementioned magnetic attraction structure includes a first magnetic block 101, a second magnetic block 102, a third magnetic block 103, and a fourth magnetic block 104. The first magnetic block 101 is disposed on the bottom wall of the water tank body 1 and arranged near the return water inlet 13. The second magnetic block 102 is disposed on the cover 5. The third magnetic block 103 is disposed at the water inlet 41 of the spray arm 4. The fourth magnetic block 104 is disposed on the top wall of the spray arm 4. When the spray arm 4 is relatively disengaged from the return water inlet 13, the second magnetic block 102 and the first magnetic block 104 attract each other, thereby closing the return water inlet 13 with the downward-folding cover 5. When the spray arm 4 is relatively connected to the return water inlet 13, the first magnetic block 101 and the third magnetic block 103 attract each other, thereby constraining the spray arm 4 to the inner bottom wall of the water tank body 1. The second magnetic block 102 and the fourth magnetic block 104 attract each other, thereby opening the return water inlet 13 with the upward-folding cover 5. The above structure is not only easy to assemble and install, but also allows each magnetic block to automatically select the corresponding magnetic block to cooperate and tighten under different conditions. Through the self-selection and tightening process of each magnetic block, the spray arm 4 can be automatically disengaged or positioned, and the cover 5 can be automatically opened or closed to the return water port 13. The operation is very convenient.

[0050] In this embodiment, with the spray arm 4 and the return water inlet 13 connected, the lower water chamber 12 serves as the return water chamber for the water supplied by the spray arm 4. In this embodiment, the lower water chamber 12 can be appropriately enlarged to facilitate filtration and sludge collection while retaining the original water tank shape.

[0051] In this embodiment, as Figure 10 , 11 As shown, the side wall of the drain chamber 12 has an inlet 1201 connected to the water source and a suction port 1202 connected to the return water pipe 14. The inlet 1201 and the suction port 1202 are arranged opposite to each other on the outer peripheral wall of the drain chamber 12.

[0052] The slag collection basket 2 is a sleeve-shaped structure with an upper port at the top and a closed bottom, such as... Figure 8 , 9 As shown, the side of the slag collection basket 2 is recessed inward at the corresponding water inlet 1202 to form a vertically arranged guide wall 21. The guide wall 21 and the inner wall of the adjacent drain chamber 12 form a water absorption zone 210. This structure increases the volume of the water absorption zone 210, which is beneficial to improving the water return efficiency.

[0053] A horizontally arranged water guide pipe 122 is tangentially connected to the side wall of the lower water chamber 12. The inlet end of the water guide pipe 122 corresponds to the water absorption area 210, and the outlet end of the water guide pipe 122 is connected to the inlet end of the return water pipe 14. The water inlet area and the water absorption area are symmetrically arranged, with the larger volume of the water absorption area 210 corresponding to the flat guide wall 21, and the smaller space of the water inlet area corresponding to the arc-shaped side wall of the slag collection basket 2. This can increase the flushing effect of the water inlet on the slag collection basket 2, improve the return water efficiency, and flush the slag collection basket 2 from both sides to achieve self-cleaning of the slag collection basket 2 and avoid the adhesion and accumulation of residue in the filter holes of the slag collection basket 2.

[0054] The water guide pipe 122 includes a first section 1221, a second section 1222, and a third section 1223, which are connected sequentially along the water flow direction and have gradually increasing diameters. The inner part of the first section 1221 is formed on the inner wall of the drain cavity 12 and communicates with the drain cavity 12, while the outer part protrudes outside the drain cavity 12. The second section 1222 is a tapered section with a gradually increasing inner diameter, and the part near the water inlet end is integrally formed with the drain cavity 12. The third section 1223 is a straight cylindrical section. The inner part of the first section 1221 and the water inlet end of the second section 1222 together constitute the aforementioned water intake 1202. This structure is beneficial for further accelerating the return water speed.

[0055] A water inlet pipe 16, connected to the water inlet opening 1201 and extending laterally, is provided outside the lower water chamber 12. The extension direction of the water inlet pipe 16 is opposite to that of the water guide pipe 122, and the flow direction of the fluid inside the pipe is also opposite. This structure is beneficial for forming a vortex in the lower water chamber 12, improving the self-cleaning effect on the slag collection basket 2. In this embodiment, the return water drive mechanism 3 is a water pump, which is connected between the water guide pipe 122 and the return water pipe 14 to provide power for the return water. The return water pipe 14 is L-shaped, and the upper section arranged vertically is very short.

[0056] The guide wall 21 is arranged at an angle that gradually slopes downwards towards the center of the lower water cavity 12, and correspondingly, the distance between the guide wall 21 and the inner wall of the lower water cavity 12 gradually increases. The diameter of the slag collection basket 2 gradually decreases downwards, and correspondingly, the distance between the side wall of the slag collection basket 2 and the inner wall of the lower water cavity 12 gradually increases downwards. A guide edge 22 extending outwards to the inner wall of the lower water cavity 12 is provided at the top edge of the guide wall 21, and this guide edge 22 is arranged at an angle that gradually slopes upwards from the upper edge of the guide wall 21. Filter holes are provided on each side wall of the slag collection basket 2, the guide wall 21, and the guide edge 22. The above structure is beneficial for increasing the filtration area and improving the flow guidance and filtration effect.

[0057] The slag collection basket 2 is equipped with a guide impeller 8 that guides the fluid downwards along a spiral trajectory. The guide impeller 8 includes a central shaft 81 and guide blades 82 spirally arranged on the outer peripheral wall of the shaft. The outer edges of the guide blades 82 are close to the inner peripheral wall of the slag collection basket 2. This structure forms a spiral guiding channel, directionally guiding the return water or sewage. This not only increases the return water or sewage velocity but also collects residue at the bottom of the slag collection basket 2, helping to prevent slag spillage.

[0058] The guide vane 82 extends downwards along the water absorption direction within the water absorption zone 210, close to the guide wall 21, with its lower end positioned close to the bottom of the slag collection basket 2. A slag collection zone 200, opposite to the water absorption zone 210, is formed between the bottom of the guide vane 82 and the inner wall of the slag collection basket 2. When the sink body 1 is used as a dishwasher, the water absorption zone 210 plays a crucial role. The aforementioned structure, arranging the water absorption zone 210 opposite to the slag collection zone 200, prevents residue accumulation in the water absorption zone 210, thereby significantly improving water return efficiency.

[0059] In this embodiment, the bottom of the lower water chamber 12 is also provided with a drainage mechanism 7 for quickly draining the water in the lower water chamber 12. The upper end of the drainage mechanism 7 is connected to the drain outlet 121. The drainage mechanism 7 includes a drainage pump 71 and a traction valve 72, with the traction valve 72 connected between the drain outlet 121 and the drainage pump 71. The above structure facilitates the rapid drainage of water and achieves the effect of keeping the water tank body 1 clean with no residual water.

[0060] In this embodiment, as Figure 4 , 5 As shown, a heating element 8 for heating the water passing through the drain chamber 12 is provided on the outer peripheral wall of the drain chamber 12. This heating element 8 is a thick-film heating element covering the outer peripheral wall of the drain chamber 12. When the water tank body 1 is used as a cleaning machine, the above structure can quickly heat the return water, thereby improving the heating effect; and, since the thick-film heating element covering the outer peripheral wall of the drain chamber is used, it is beneficial to improve heating efficiency and reduce heat loss; the heating element also heats the slag collection basket, which can also keep the slag collection basket dry and hygienic, sterilize and disinfect, and prevent bacterial growth.

[0061] The top of the sink body 1 is provided with a flip-up door for opening or closing the top opening of the sink body 1.

[0062] When using the cleaning machine of this embodiment, if the sink body 1 needs to be used as a regular sink, the spray arm 4 is removed, and the cover 5 automatically flips down to close the return water inlet 13 under the action of the magnetic structure. At this time, the upper wall of the cover 5 forms part of the lower wall of the sink body 1, and the overall shape of the sink body 1 is the same as that of a regular sink. The washing water is filtered and collected by the sludge collection basket 2 and then discharged into the drain pipe through the drain outlet 121. If the sink body 1 needs to be used as a dishwasher, the spray arm 4 is installed in the return water inlet 13 at the bottom of the sink body 1. The spray arm 4 is automatically constrained in the sink body 1 by the magnetic structure. At the same time, under the action of the magnetic structure, the cover 5 opens the return water inlet 13, so that the return water pipe 14 is connected to the spray arm 4. Under the action of the return water drive mechanism 3, spray cleaning can be realized. After cleaning, the last water is discharged into the drain pipe through the drain outlet 12.

[0063] Example 2:

[0064] The difference between this embodiment and Embodiment 1 is that the fourth magnetic block 104 is omitted in this embodiment. When switching to dishwasher use, the second magnetic block 102 attracts the third magnetic block 103 during the downward placement of the spray arm 4, thereby opening the return water outlet 13 by the upward-flipping cover 5. This structure can reduce costs.

[0065] Example 3:

[0066] The difference between this embodiment and Embodiment 1 is that the fourth magnetic block 104 is omitted in this embodiment, and the second magnet is replaced with an iron block. When it is necessary to switch to dishwasher use, the iron block attracts the third magnetic block 103 during the downward placement of the spray arm 4, thereby opening the return water outlet 13 by the upward-folding cover 5. This structure can further reduce costs.

[0067] The specification and claims of this invention use terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," to describe various exemplary structural parts and elements of the invention. However, these terms are used herein merely for ease of explanation and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine comprising a sink body (1), the bottom of the sink body (1) is provided with a lower water outlet (11) and a lower water cavity (12) connected below the lower water outlet (11), a slag collecting basket (2) is arranged in the lower water cavity (12), the bottom of the lower water cavity (12) is provided with a drain outlet (121), characterized in that: The sink body (1) is further provided with a backwater pipe (14) and a backwater opening (13) in the bottom of the sink body (1), the backwater pipe (14) is arranged outside the sink body (1) and connected between the backwater opening (13) and the drain cavity (12), the sidewall of the drain cavity (12) is provided with a water inlet opening (1201) connected with a water source and a water suction opening (1202) connected with the backwater pipe (14), and the water inlet opening (1201) and the water suction opening (1202) are oppositely arranged on the peripheral wall of the drain cavity (12). The slag collecting basket (2) is in a sleeve structure with an upper opening at the top and a closed bottom, the side of the slag collecting basket (2) is inwardly recessed at the position corresponding to the water suction opening (1202) to form a vertically arranged flow guide wall (21), and a water suction area (210) is formed between the flow guide wall (21) and the inner wall of the drain cavity (12) close to the flow guide wall (21); the sidewall of the drain cavity (12) is tangentially connected with a horizontally arranged water guide pipe (122), the water inlet end of the water guide pipe (122) is arranged corresponding to the water suction area (210), the water outlet end of the water guide pipe (122) is connected with the water inlet end of the backwater pipe (14); the water guide pipe (122) comprises a first section (1221), a second section (1222) and a third section (1223) which are sequentially connected and gradually increase in diameter along the flow direction of the water flow, the inner side of the first section (1221) is formed on the inner wall of the drain cavity (12) and penetrates through the drain cavity (12), and the outer side of the first section (1221) protrudes out of the drain cavity (12), the second section (1222) is a tapered section gradually increasing in inner diameter, and the part close to the water inlet end of the second section (1222) is integrally formed with the drain cavity (12), the third section (1223) is a straight cylinder section, and the inner side of the first section and the water inlet end of the second section together form the water suction opening (1202); the top edge of the flow guide wall (21) is provided with a flow guide edge (22) extending to the inner wall of the drain cavity (12), and the flow guide edge (22) is gradually and upwardly inclined outward from the upper edge of the flow guide wall (21); the slag collecting basket (2) is provided with a flow guide impeller (8) for guiding the fluid downward along a spiral track, the flow guide impeller (8) comprises a shaft (81) at the center and flow guide blades (82) spirally arranged on the peripheral wall of the shaft, and the outer edge of the flow guide blades (82) is close to the inner peripheral wall of the slag collecting basket (2).

2. The cleaning machine of claim 1, wherein: The drain cavity (12) is provided with a water inlet pipe (16) connected with the water inlet opening (1201) and extending transversely, the extending direction of the water inlet pipe (16) is opposite to the extending direction of the water guide pipe (122), and the flow direction of the fluid in the water inlet pipe (16) is also opposite to the flow direction of the fluid in the water guide pipe (122).

3. The cleaning machine of claim 1, wherein: The flow guide wall (21) is gradually inclined downward to the center of the drain cavity (12) from top to bottom, and correspondingly, the distance between the flow guide wall (21) and the inner wall of the drain cavity (12) gradually increases. The flow guide wall (21) is gradually inclined downward to the center of the drain cavity (12) from top to bottom, and correspondingly, the distance between the flow guide wall (21) and the inner wall of the drain cavity (12) gradually increases.

4. The cleaning machine of claim 1, wherein: The lower end of the guide vane (82) extends downward along the water absorption direction in the water absorption area (210) close to the guide wall (21), and the lower end is arranged close to the bottom of the slag collecting basket (2). The bottom of the guide vane (82) and the inner wall of the slag collecting basket (2) form a slag collecting area (200) arranged opposite to the water absorption area (210).

5. The cleaning machine of any one of claims 1-4, wherein: The diameter of the slag collecting basket (2) gradually decreases from top to bottom, and correspondingly, the distance between the side wall of the slag collecting basket (2) and the inner wall of the water outlet cavity (12) gradually increases from top to bottom.

6. The cleaning machine of any one of claims 1-4, wherein: The water tank body (1) is detachably provided with a spray arm (4), the bottom of the spray arm (4) is provided with a water inlet (41) which can be connected with the water return port (13), and the top wall of the spray arm (4) is provided with a water spraying hole (42).

7. The cleaning machine of claim 6, wherein: The inner bottom wall of the water tank body (1) is provided with a cover (5) which can open or close the water return port (13). In the state that the spray arm (4) is installed above the water return port (13), the cover (5) opens the water return port (13); in the state that the spray arm (4) is separated from the water return port (13), the cover (5) closes the water return port (13).

8. The cleaning machine of claim 7, wherein: Further comprising a driving assembly for driving the cover (5) to open or close relative to the water return port (13), the driving assembly is a magnetic attraction structure arranged on the spray arm (4) and / or the cover (5) and / or the water tank body (1).

9. The cleaning machine of claim 8, wherein: The magnetic attraction structure comprises a first magnetic block (101), a second magnetic block (102), a third magnetic block (103) and a fourth magnetic block (104), the first magnetic block (101) is arranged on the bottom wall of the water tank body (1) and close to the water return port (13), the second magnetic block (102) is arranged on the cover (5), the third magnetic block (103) is arranged at the water inlet (41) of the spray arm (4), and the fourth magnetic block (104) is arranged on the top wall of the spray arm (4). In the state that the spray arm (4) is separated from the water return port (13), the second magnetic block (102) is attracted to the first magnetic block (101), so that the water return port (13) is closed by the cover (5) which is turned down; in the state that the spray arm (4) is connected with the water return port (13), the first magnetic block (101) is attracted to the third magnetic block (103), so that the spray arm (4) is constrained on the inner bottom wall of the water tank body (1), and the second magnetic block (102) is attracted to the fourth magnetic block (104), so that the water return port (13) is opened by the cover (5) which is turned up.

10. The cleaning machine of claim 8, wherein: The magnetic attraction structure comprises a first magnetic block (101), a second magnetic block (102) and a third magnetic block (103), the first magnetic block (101) is arranged on the bottom wall of the water tank body (1) and close to the water return port (13), the second magnetic block (102) is arranged on the cover (5), and the third magnetic block (103) is arranged at the water inlet (41) of the spray arm (4). In the state that the spray arm (4) is separated from the backwater outlet (13), the second magnetic block (102) is attracted to the first magnetic block (101), so that the backwater outlet (13) is closed by the downwardly turned cover (5); in the state that the spray arm (4) is connected to the backwater outlet (13), the first magnetic block (101) is attracted to the third magnetic block (103), so that the spray arm (4) is constrained on the inner bottom wall of the sink body (1), and the second magnetic block (102) is attracted to the third magnetic block (103) during the process that the spray arm is placed downward, so that the backwater outlet (13) is opened by the upwardly turned cover (5).

11. The cleaning machine of claim 8, wherein: The magnetic attraction structure comprises a first magnetic block (101), an iron block and a third magnetic block (103), the first magnetic block (101) is arranged on the bottom wall of the sink body (1) and close to the backwater outlet (13), the iron block is arranged on the cover (5), and the third magnetic block (103) is arranged at the water inlet (41) of the spray arm (4); In the state that the spray arm (4) is separated from the backwater outlet (13), the iron block is attracted to the first magnetic block (101), so that the backwater outlet (13) is closed by the downwardly turned cover (5); in the state that the spray arm (4) is connected to the backwater outlet (13), the first magnetic block (101) is attracted to the third magnetic block (103), so that the spray arm (4) is constrained on the inner bottom wall of the sink body (1), and the iron block is attracted to the third magnetic block (103) during the process that the spray arm is placed downward, so that the backwater outlet (13) is opened by the upwardly turned cover (5).

12. The cleaning machine of any one of claims 1-4, wherein: The backwater pipeline (14) is provided with a backwater driving mechanism (3) capable of providing power for backwater.

13. The cleaning machine of any one of claims 1-4, wherein: The bottom of the drain cavity (12) is further provided with a drainage mechanism (7) for quickly draining water in the drain cavity (12), the upper end of the drainage mechanism (7) is connected with the drain port (121), and the drainage mechanism (7) comprises a drainage pump (71) and a traction valve (72), the traction valve (72) is connected between the drain port (121) and the drainage pump (71).

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