A cleaning machine

Abstract

The present application relates to a kind of cleaning machines, including sink body, the bottom of the 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, the bottom of sink body is also provided with backwater port and the backwater conduit connected below backwater port, the lower water cavity and backwater conduit are connected by backwater drive mechanism.Between when needing sink body as dishwasher is used, lower water cavity is used as backwater cavity, backwater drive mechanism is filtered by slag collecting basket in lower water cavity Water is pumped back into sink body by backwater conduit, backwater port, when needing sink body as ordinary sink is used, the water filtered in lower water cavity, slag is directly drained to sewer by drain, it is convenient to switch between dishwasher and ordinary sink, convenient to use;Compared with the existing ordinary sink, the change in the sink body of the present application is small, and the overall structure is simple and the modification cost is low.

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 water outlet and a water chamber connected below the water outlet. A slag collection basket is provided in the water chamber. A drain outlet is provided at the bottom of the water chamber. The bottom of the water tank body is also provided with a water return outlet and a water return pipe connected below the water return outlet. The water chamber and the water return pipe are connected by a water return drive mechanism.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] More preferably, the driving component is a magnetic structure disposed on the spray arm, the cover and the water tank body.

[0015] 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:

[0016] 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:

[0017] 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.

[0018] Preferably, the outer bottom wall of the water tank body is provided with a first slot arranged around the outer periphery of the return water inlet, and the first magnetic block is embedded in the first slot. There can be multiple first slots, which are arranged at intervals along the outer periphery of the return water inlet, and each first slot contains a first magnetic block. The above structure facilitates the installation of the first magnetic block.

[0019] Preferably, the lower wall of the cover has a second slot, in which the second magnetic block is embedded. This structure facilitates the installation of the second magnetic block.

[0020] In a further preferred embodiment, the second slot is positioned near the free-rotating end of the cover. When the spray arm is disengaged from the return water inlet, the second magnetic block constitutes a first counterweight that can automatically flip the cover downwards. When the water tank is used as a regular water tank, the above structure ensures that the cover maintains an automatic downward flipping tendency, and even if the hinge is not flexible enough, the cover can still be flipped down smoothly and the return water inlet can be closed.

[0021] Preferably, the bottom wall of the spray arm is provided with a guide sleeve extending vertically corresponding to the water inlet and the water outlet, and the third magnetic block is annular and sleeved on the outer periphery of the guide sleeve.

[0022] For ease of installation, the outer periphery of the guide sleeve is fitted with an assembly piece arranged at intervals with the guide sleeve, and the third magnetic block is located in the assembly space formed by the guide sleeve and the assembly piece.

[0023] Preferably, the outer peripheral wall of the guide sleeve has a first limiting groove arranged circumferentially, and correspondingly, the inner peripheral wall of the assembly has a second limiting groove arranged circumferentially. The inner edge of the third magnet is rotatably constrained in the first limiting groove, and the outer edge is rotatably constrained in the second limiting groove. Alternatively, a bearing arranged around the periphery of the return water inlet is provided on the inner bottom wall of the water tank body, and the bottom wall of the third magnet protrudes from the lower end of the assembly space and sits on the circumferential bearing. The spray holes on both sides of the inlet of the spray arm have different inclination directions. With the above structure, it is convenient to realize the self-rotation of the spray arm as the water column is sprayed out, so as to expand the spray range and improve the cleaning effect.

[0024] Preferably, the fourth magnetic block is disposed on the outer top wall of the spray arm and forms a second counterweight for pressing the spray arm downward toward the return water inlet. When the water tank body is used as a cleaning machine, the above structure helps to improve the reliability of the spray arm installation.

[0025] Preferably, when the spray arm and the return water inlet are connected relative to each other, the lower water chamber constitutes a return water chamber for the water supplied by the spray arm. This invention allows for an appropriately larger lower water chamber, facilitating filtration and sludge collection while retaining the original water tank shape.

[0026] Preferably, the water return drive mechanism is a water pump, and a water guide pipe is arranged laterally on the side of the lower water chamber and connected to the water inlet of the water pump. The water outlet of the water pump is located at its top and connected to the lower end of the water return pipe.

[0027] Preferably, the first end of the water guide pipe is tangentially connected to the side of the lower water chamber, and the second end is connected to the water inlet of the water pump. This structure helps to reduce energy loss.

[0028] 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 the drain cavity, 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. This structure helps to accelerate the return water speed.

[0029] Preferably, the inner portion of the first section and the water inlet end of the second section of the water guide pipe are respectively arranged corresponding to the side wall of the slag collection basket. This structure can flush the side of the slag collection basket during the return water process to keep the slag collection basket clean.

[0030] Preferably, the slag collection basket is a cylindrical structure with a closed bottom and an open top, and the diameter of the slag collection basket gradually decreases from top to bottom. This structure helps to lock the residue at the bottom of the slag collection basket, improving the slag collection efficiency.

[0031] Preferably, the inner bottom wall of the water tank body is provided with a detachable end cap that can open or close the upper port of the drain chamber. When not in use, the drain outlet is closed to prevent odors from overflowing from the drain pipe.

[0032] Preferably, the inner bottom wall of the water tank body is provided with a partially recessed guide area surrounding the drain outlet. This structure helps to improve the sludge collection effect and the return water speed.

[0033] 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.

[0034] Preferably, a heating element for heating the water passing through the drain cavity is provided in the drain cavity and / or on its outer peripheral wall. More preferably, a thick-film heating element for heating the water passing through the drain cavity is covered on the outer peripheral wall of the drain cavity. When the water tank body is used as a cleaning machine, the above structure can quickly heat the return water, thereby improving the heating effect; and, due to the use of a thick-film heating element covering the outer peripheral wall of the drain cavity, 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.

[0035] 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 that has been filtered and collected 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. To meet the requirements of the return water chamber, the lower water chamber can be appropriately enlarged, making it easier to filter and collect slag. Attached Figure Description

[0036] 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);

[0037] 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).

[0038] Figure 3 This is a schematic diagram of the structure of Embodiment 1 of the present invention (in an unused state);

[0039] Figure 4 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0040] Figure 5 for Figure 4 A structural diagram from another angle;

[0041] Figure 6 for Figure 1 A sectional view;

[0042] Figure 7 for Figure 6 A magnified view of a portion of the image;

[0043] Figure 8 for Figure 1 Another sectional view;

[0044] Figure 9 for Figure 8 A magnified view of a portion of the image;

[0045] Figure 10 This is a schematic diagram of the lower water chamber in Embodiment 1 of the present invention;

[0046] Figure 11 for Figure 10 Another angle of the image. Detailed Implementation

[0047] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0048] Example 1:

[0049] like Figures 1-11 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.

[0050] like Figure 4 , 6 As 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] like Figures 6-9 As 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.

[0056] Specifically, the bottom wall of the water tank body 1 is provided with a first slot 15 arranged around the outer periphery of the return water inlet 13, and a first magnetic block 101 is embedded in the first slot 15. There can be multiple first slots 15, which are arranged at intervals along the outer periphery of the return water inlet 13, and a first magnetic block 101 is embedded in each first slot 15. The above structure facilitates the installation of the first magnetic block 101. A second slot 52 is provided on the lower wall of the cover 5, and a second magnetic block 102 is embedded in the second slot 52. This structure facilitates the installation of the second magnetic block 102. The second slot 52 is arranged near the free end of the cover 5. When the spray arm 4 is relatively disengaged from the return water inlet 13, the second magnetic block 102 constitutes a first counterweight that can drive the cover 5 to automatically flip downward. When the water tank body 1 is used as a regular water tank, the above structure keeps the cover 5 in a tendency to automatically flip downward. Even when the hinge is not flexible enough, the cover 5 can be flipped down smoothly and the return water inlet 13 can be closed. The bottom wall of the spray arm 4 is provided with a guide sleeve 43 extending vertically corresponding to the inlet 41 and the outlet 13. The third magnetic block 103 is annular and is fitted around the outer periphery of the guide sleeve 43. For ease of installation, a mounting kit 44 is fitted around the outer periphery of the guide sleeve 43 at intervals. The third magnetic block 103 is located in the assembly space 45 formed by the guide sleeve 43 and the mounting kit 44. A fourth magnetic block 104 is provided on the outer top wall of the spray arm 4 and forms a second counterweight for pressing the spray arm 4 down toward the outlet 13. When the water tank body 1 is used as a cleaning machine, the above structure helps to improve the reliability of the installation of the spray arm 4.

[0057] 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.

[0058] like Figure 4 As shown, in this embodiment, the return water drive mechanism 3 is a water pump. A horizontally arranged water guide pipe 122 is provided on the side of the lower water chamber 12 and connected to the water inlet of the water pump 3. The water outlet of the water pump is located at its top and connected to the lower end of the return water pipe 14. The return water pipe 14 is L-shaped, and the upper section arranged vertically is very short.

[0059] like Figure 10 , 11As shown, the first end of the aforementioned water guide pipe 122 is tangentially connected to the side of the drain chamber 12, and the second end is connected to the inlet of the water pump. Specifically, 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 chamber 12 and is continuous with the drain chamber 12, while the outer part protrudes outside the drain chamber 12. The second section 1222 is a tapered section with a gradually increasing inner diameter, and the part near the inlet end is integrally formed with the drain chamber 12. The third section 1223 is a straight cylindrical section. This structure is beneficial for accelerating the return water speed.

[0060] The inner portion of the first section 1221 of the aforementioned water guide pipe 122 and the water inlet end of the second section 1222 are respectively arranged corresponding to the side wall of the slag collection basket 2. A water inlet pipe 16 is also connected to the side wall of the lower water chamber 12. This water inlet pipe 16 is tangentially connected to the lower water chamber 12, and the connection between the water inlet pipe 16 and the lower water chamber 12 is opposite to the connection between the water guide pipe 122 and the lower water chamber 12, with the flow direction opposite. This structure allows for flushing of both sides of the slag collection basket 2 during water intake and return processes, thereby maintaining the cleanliness of the slag collection basket 2.

[0061] In this embodiment, the slag collection basket 2 is a cylindrical structure with a closed bottom and an open top, and the diameter of the slag collection basket 2 gradually decreases from top to bottom. This structure helps to lock the residue at the bottom of the slag collection basket 2, improving the slag collection effect. Figure 3 As shown, the inner bottom wall of the water tank body 1 is equipped with a detachable end cap 6 that allows the upper port of the drain chamber 12 to be opened or closed. When not in use, the drain outlet 11 is closed to prevent odors from overflowing from the drain pipe. The inner bottom wall of the water tank body 1 is provided with a partially recessed guide area 111 surrounding the drain outlet 11. This structure helps to improve the sludge collection effect and the return water speed.

[0062] 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.

[0063] In this embodiment, as Figure 4 , 5As 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.

[0064] 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.

[0065] 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.

[0066] Example 2:

[0067] The difference between this embodiment and Embodiment 1 is that:

[0068] The outer peripheral wall of the flow guide sleeve 43 has a first limiting groove arranged in the circumferential direction, and correspondingly, the inner peripheral wall of the assembly sleeve 44 has a second limiting groove arranged in the circumferential direction. The inner edge of the third magnetic block 103 is rotatably constrained in the first limiting groove, and the outer edge is rotatably constrained in the second limiting groove.

[0069] The spray holes 42 on both sides of the water inlet 41 of the spray arm 4 are tilted in different directions. When the spray arm 4 is positioned at the bottom of the water tank body 1 by the magnetic attraction structure, the above structure facilitates the rotation of the spray arm 4.

[0070] Example 3:

[0071] The difference between this embodiment and Embodiment 1 is that a bearing is provided on the inner bottom wall of the water tank body 1, arranged around the periphery of the return water inlet 13, and the bottom wall of the third magnetic block 103 is exposed at the lower end of the assembly space 45 and sits on the peripheral bearing. With the above structure, it is convenient to realize the self-rotation of the spray arm 4 as the water column is sprayed out, so as to expand the spray range and improve the cleaning effect.

[0072] Example 4:

[0073] 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.

[0074] Example 5:

[0075] 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.

[0076] 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 water tank body (1), wherein a drain outlet (11) is provided at the bottom of the water tank body (1) 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), characterized in that: The bottom of the water tank body (1) is also provided with a water return port (13) and a water return pipe (14) connected below the water return port (13). The lower water chamber (12) and the water return pipe (14) are connected by a water return drive mechanism (3). The water tank body (1) is equipped with a detachable spray arm (4). The bottom of the spray arm (4) has an inlet (41) that can be connected to the return water inlet (13). The top wall of the spray arm (4) has spray holes (42). 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); a hinge interface (131) is opened on the inner bottom wall of the water tank body (1) at the edge of the corresponding return water inlet (13), and correspondingly, a hinge part (51) that can match the hinge interface (131) is provided at the edge of the cover (5), and 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).

2. The cleaning machine according to claim 1, characterized in that: It also includes a drive assembly for driving the cover (5) to open or close relative to the return inlet (13), the drive assembly being disposed on the spray arm (4) and / or the cover (5) and / or the tank body (1).

3. The cleaning machine according to claim 2, characterized in that: The driving component is a magnetic structure installed on the spray arm (4), the cover (5) and the water tank body (1).

4. The cleaning machine according to claim 3, characterized in that: The magnetic 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 located on the bottom wall of the water tank body (1) and is arranged near the return water inlet (13). The second magnetic block (102) is located on the cover (5). The third magnetic block (103) is located at the water inlet (41) of the spray arm (4). The fourth magnetic block (104) is located on the top wall of the spray arm (4). When the spray arm (4) is disengaged from the return water inlet (13), the second magnetic block (102) attracts the first magnetic block (101), thereby closing the return water inlet (13) with the downward-folded cover (5); when the spray arm (4) is connected to the return water inlet (13), the first magnetic block (101) attracts the third magnetic block (103), thereby constraining the spray arm (4) to the inner bottom wall of the water tank body (1), and the second magnetic block (102) attracts the fourth magnetic block (104), thereby opening the return water inlet (13) with the upward-folded cover (5).

5. The cleaning machine according to claim 4, characterized in that: The bottom wall of the water tank body (1) is provided with a first slot (15) arranged around the outer periphery of the return water inlet (13), and the first magnetic block (101) is embedded in the first slot (15).

6. The cleaning machine according to claim 4, characterized in that: The lower wall of the cover (5) is provided with a second slot (52), and the second magnetic block (102) is embedded in the second slot (52).

7. The cleaning machine according to claim 6, characterized in that: The second slot (52) is arranged near the free end of the cover (5) for rotation. When the spray arm (4) is disengaged from the return water port (13), the second magnetic block (102) constitutes a first counterweight block that can drive the cover (5) to automatically flip downward.

8. The cleaning machine according to claim 4, characterized in that: The bottom wall of the spray arm (4) is provided with a guide sleeve (43) that extends vertically to the corresponding water inlet (41) and water outlet (13). The third magnetic block (103) is annular and is sleeved on the outer periphery of the guide sleeve (43).

9. The cleaning machine according to claim 8, characterized in that: The outer periphery of the guide sleeve (43) is fitted with an assembly (44) arranged at intervals from the guide sleeve (43), and the third magnetic block (103) is disposed in the assembly space (45) formed by the guide sleeve (43) and the assembly (44).

10. The cleaning machine according to claim 9, characterized in that: The outer peripheral wall of the guide sleeve (43) has a first limiting groove arranged in the circumferential direction. Correspondingly, the inner peripheral wall of the assembly (44) has a second limiting groove arranged in the circumferential direction. The inner edge of the third magnetic block (103) is rotatably constrained in the first limiting groove, and the outer edge is rotatably constrained in the second limiting groove.

11. The cleaning machine according to claim 9, characterized in that: The inner bottom wall of the water tank body (1) is provided with a bearing arranged around the periphery of the return water inlet (13), and the bottom wall of the third magnetic block (103) is exposed at the lower end of the assembly space (45) and sits on the peripheral bearing.

12. The cleaning machine according to claim 4, characterized in that: The fourth magnetic block (104) is located on the outer top wall of the spray arm (4) and forms a second counterweight for pressing the spray arm (4) down toward the return water inlet (13).

13. The cleaning machine according to claim 3, characterized in that: The magnetic structure includes a first magnetic block (101), a second magnetic block (102) and a third magnetic block (103). The first magnetic block (101) is located on the bottom wall of the water tank body (1) and is arranged near the return water inlet (13). The second magnetic block (102) is located on the cover (5). The third magnetic block (103) is located at the water inlet (41) of the spray arm (4). When the spray arm (4) is disengaged from the return water inlet (13), the second magnetic block (102) attracts the first magnetic block (101), thereby closing the return water inlet (13) with the downward-folding cover (5); when the spray arm (4) is connected to the return water inlet (13), the first magnetic block (101) attracts the third magnetic block (103), thereby constraining the spray arm (4) to the inner bottom wall of the water tank body (1), and the second magnetic block (102) attracts the third magnetic block (103) during the downward placement of the spray arm, thereby opening the return water inlet (13) with the upward-folding cover (5).

14. The cleaning machine according to claim 3, characterized in that: The magnetic structure includes a first magnetic block (101), an iron block and a third magnetic block (103). The first magnetic block (101) is located on the bottom wall of the water tank body (1) and is arranged near the return water inlet (13). The iron block is located on the cover (5). The third magnetic block (103) is located at the water inlet (41) of the spray arm (4). When the spray arm (4) is detached from the return water inlet (13), the iron block attracts the first magnetic block (101), thereby closing the return water inlet (13) with the downward-folding cover (5); when the spray arm (4) is connected to the return water inlet (13), the first magnetic block (101) attracts the third magnetic block (103), thereby constraining the spray arm (4) to the inner bottom wall of the water tank body (1), and the iron block attracts the third magnetic block (103) during the downward placement of the spray arm, thereby opening the return water inlet (13) with the upward-folding cover (5).

15. The cleaning machine according to any one of claims 1 to 14, characterized in that: When the spray arm (4) and the return water inlet (13) are connected relative to each other, the lower water chamber (12) is configured as a return water chamber for water supply to the spray arm (4).

16. The cleaning machine according to any one of claims 1 to 14, characterized in that: The water return drive mechanism (3) is a water pump. A water guide pipe (122) is arranged horizontally on the side of the lower water chamber (12) and connected to the water inlet end of the water pump. The water outlet end of the water pump is located at its top and connected to the lower end of the water return pipe (14).

17. The cleaning machine according to claim 16, characterized in that: The first end of the water guide pipe (122) is tangentially connected to the side of the lower water chamber (12), and the second end is connected to the water inlet of the water pump.

18. The cleaning machine according to claim 17, characterized in that: The water guide pipe (122) includes a first section (1221), a second section (1222), and a third section (1223) that 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 is connected to the drain cavity (12), while the outer part protrudes outside the drain cavity (12). The second section (1222) is a tapered section with gradually increasing inner diameter, and the part near the water inlet end is formed as one piece with the drain cavity (12). The third section (1223) is a straight cylindrical section.

19. The cleaning machine according to claim 18, characterized in that: The inner part of the first section (1221) and the water inlet end of the second section (1222) of the water guide pipe (122) are respectively arranged on the side wall of the slag collection basket (2).

20. The cleaning machine according to any one of claims 1 to 14, characterized in that: The slag collection basket (2) is a cylindrical structure with a closed bottom and an open top, and the diameter of the slag collection basket (2) gradually decreases from top to bottom.

21. The cleaning machine according to any one of claims 1 to 14, characterized in that: The inner bottom wall of the water tank body (1) is provided with a detachable end cap (6) that can open or close the upper port of the lower water chamber (12).

22. The cleaning machine according to any one of claims 1 to 14, characterized in that: The inner bottom wall of the water tank body (1) is provided with a flow guiding area (111) that is partially recessed around the drain outlet (11).

23. The cleaning machine according to any one of claims 1 to 14, characterized in that: The bottom of the drain chamber (12) is also provided with a drainage mechanism (7) for quickly draining the water in the drain chamber (12), and the upper end of the drainage mechanism (7) is connected to the drain outlet (121).

24. The cleaning machine according to claim 23, characterized in that: The drainage mechanism (7) includes a drainage pump and a traction valve, wherein the traction valve is connected between the drain outlet (121) and the drainage pump.

25. The cleaning machine according to any one of claims 1 to 14, characterized in that: The drain chamber (12) and / or the outer peripheral wall of the drain chamber (12) are provided with a heating element (8) for heating the water passing through the drain chamber (12).

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