Cleaning machine

Abstract

The invention relates to a cleaning machine which comprises a box body, a water pump, a first spraying piece and a second spraying piece, a concave water return area is arranged at the bottom of the box body, the water pump is arranged in the water return area, a water inlet of the water pump is communicated with the water return area, and the first spraying piece is arranged above the water return area and is communicated with a first water outlet in the top of the water pump; the second spraying piece is arranged in the middle of the box body and communicated with a second water outlet in the side portion of the water pump, the second spraying piece comprises a water spraying pipe, the water spraying pipe vertically extends in the middle of the box body, at least part of the pipe section of the water spraying pipe is a telescopic pipe, the upper end of the water spraying pipe is a water inlet end, and water spraying holes are formed in the side wall of the water spraying pipe; the first cleaning brush is movably connected to the side part of the water spraying pipe, and the inclination angle of the first cleaning brush is changed along with stretching of the water spraying pipe; the second cleaning brush is arranged at the lower end of the water spraying pipe, and the height of the second cleaning brush is changed along with stretching of the water spraying pipe; the first cleaning brush and the second cleaning brush are used for cleaning tableware on the upper middle portion of the box body in a contact mode.

Description

Technical Field

[0001] The invention relates to the technical field of dishwashers, and in particular to a washing machine for washing tableware, fruits and vegetables. Background Art

[0002] As people's living standards improve, dishwashers have gradually become a commonly used appliance in the kitchen.

[0003] At present, there are two main types of water flow systems in dishwashers: open and closed. The water pump of the open water flow system is placed in the washing chamber and directly connected to the washing chamber, while the water pump of the closed water flow system is placed outside the washing chamber and connected to the washing chamber through a pipe. The open water flow system is beneficial to reducing fluid energy loss due to the shortened return stroke, and has great advantages in water pump performance.

[0004] The applicant's prior patent ZL 201310749864.9 "Sink-type cleaning machine" discloses a cleaning machine using an open water flow system, which includes a box body forming a washing space, the box body includes a sink body, the sink body is concave at least in the central part, the concave part is covered with a drain plate of the same shape as the concave part, a plurality of drain holes for draining water are provided on the drain plate, the space between the concave part and the drain plate forms a drain area, the drain plate is flush with other parts of the bottom of the sink body, and a water pump is provided in the drain area to pump water out of the drain area to above the drain plate.

[0005] The above structure sets the water pump in the drain area of ​​the sink body, which has a good water replenishment effect on the water pump. However, since the bottom spray arm as a water outlet component needs to be used as a part of the pump housing, that is, it cooperates with the impeller to realize water extraction and water flow distribution, and the rotation of the bottom spray arm is driven by the viscosity of the water flow, then there must be a rotational matching relationship between the flow channel inlet of the bottom spray arm used as part of the pump housing and the impeller, which easily leads to the impact force of the water flow on the bottom spray arm being not stable enough, affecting the rotational stability of the bottom spray arm. At the same time, for larger dishwashers, a middle spray arm is usually set in the middle of the dishwasher. The middle spray arm only sprays water through the spray hole to rinse the tableware, and the tableware on the top of the lower bowl basket is less effective, affecting the cleaning effect. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a cleaning machine which can improve the rotation stability of a water spray component by outputting a stable water flow and at the same time utilize the water spray component for contact decontamination to improve the cleaning effect in view of the current status of the prior art.

[0007] The technical solution adopted by the present invention to solve the above technical problems is:

[0008] A cleaning machine, comprising a box, a water pump, a first spray element and a second spray element, wherein a concave water return area is provided at the bottom of the box, the water pump is provided in the water return area and a water inlet is connected to the water return area, the first spray element is provided above the water return area and is connected to a first water outlet at the top of the water pump, the second spray element is provided in the middle of the box and is connected to a second water outlet at the side of the water pump, and the second spray element comprises:

[0009] A water spray pipe extending vertically in the middle of the box body and at least part of the pipe section is a telescopic pipe, the upper end of the water spray pipe is a water inlet end, and a water spray hole is opened on the side wall of the water spray pipe;

[0010] A first cleaning brush is movably connected to the side of the water spray pipe and changes its tilt angle as the water spray pipe expands and contracts;

[0011] A second cleaning brush is disposed at the lower end of the water spray pipe and changes height as the water spray pipe expands and contracts;

[0012] The first cleaning brush and the second cleaning brush are used for contact cleaning of tableware in the upper middle part of the box.

[0013] The present invention provides a second spray component that takes into account both spraying and contact friction cleaning. Compared with the existing spray arm that is completely driven by the viscosity of water flow to perform spray cleaning, the first cleaning brush and the second cleaning brush of the second spray component can not only provide contact cleaning, but the first cleaning brush can also change the inclination and the second cleaning brush can change the height during the water spraying process to adapt to the friction cleaning of more tableware. The change of the inclination and height of the cleaning brush is achieved by relying on the dynamic balance of the impact force of the water flow and the elastic component, and adaptive adjustment can be achieved without setting an independent driving component. The structure is simple, easy to use, and is conducive to improving the cleaning effect.

[0014] Preferably, a vertically extending inner water pipe is provided at the inner side wall of the box, the upper end of the inner water pipe is connected to a transversely extending water pipe, the upper end of the water spray pipe is rotatably connected to the water outlet end of the water pipe, and the water spray pipe is extended and retracted up and down and rotated circumferentially as the water column is sprayed. This structure facilitates placing the second spray part in the central part of the box, which is beneficial to expanding the cleaning range and improving the cleaning effect.

[0015] Preferably, the water spray pipe is provided with an impeller at the lower end, which is used to disperse the water flow circumferentially and provide rotational power for the water spray pipe. This structure can use the impact force of the water flow to drive the second spray part to rotate, so as to further eliminate the cleaning dead angle and improve the cleaning effect.

[0016] Preferably, the outlet end of the water pipe is bent downward to form a connector, the cross section of the upper end of the water spray pipe is a T-shaped structure, and the connector has a connecting groove in which the edge of the transverse part of the T-shaped structure can be rotated and clamped. This structure facilitates the rotation and restraint of the upper end of the second spraying member on the water pipe.

[0017] Preferably, the second spraying member further comprises a driving structure capable of driving the water spray pipe to extend and retract upward and downward so as to continuously change the inclination of the first cleaning brush and the height of the second cleaning brush, and the driving structure cooperates with the impact force of the water flow to realize adaptive adjustment. With the above structure, the inclination and height of the cleaning brush can be adaptively adjusted through the impact force of the water flow, which simplifies the structure and is convenient to use.

[0018] Preferably, the driving structure includes an elastic member, which is sleeved on the outer periphery of the water guide pipe and has an upper end connected to the upper end of the water spray pipe and a lower end against the second cleaning brush, so that the water spray pipe always maintains an axial contraction trend, and the water spray pipe realizes axial reciprocating expansion and contraction under the dynamic balance between the impact force of the water flow and the elastic force of the elastic member. The above structure facilitates the adaptive adjustment of the axial expansion and contraction of the second spray member by utilizing the elastic member and the impact force of the water flow.

[0019] Preferably, the first cleaning brush comprises a body extending in the length direction, the upper end of the body is rotatably connected to the lower end of a connecting rod, the upper end of the connecting rod is rotatably connected to the side wall of the upper end of the water spray pipe, the lower end of the body is rotatably connected to the side wall of the second cleaning brush, and the rotating connection structure of the body and the connecting rod and the ends of the two together constitute a matching structure that enables the first cleaning brush to change its inclination as the water spray pipe expands and contracts. Such a structure is adopted to improve the stability of the cleaning brush inclination adjustment and height adjustment.

[0020] Preferably, the telescopic pipe section includes a trough portion sunken into the water spray pipe and a crest portion protruding out of the water spray pipe, the water spray holes are multiple and spaced apart on the crest portion of the water spray pipe, and the trough portion constitutes a diversion portion for diverting water in the water spray pipe. The above structure is adopted to reduce the loss of fluid capacity, so that the water column sprayed by the second spraying member can be farther, the spray coverage range can be increased, the cleaning dead angle can be eliminated, and the cleaning effect can be improved.

[0021] Preferably, the water pump comprises:

[0022] The pump housing has a water inlet at the bottom, a first water outlet at the top, and a second water outlet at the side;

[0023] A spatial guide vane, comprising a cover plate and a guide vane, wherein the cover plate is transversely arranged in the middle of the pump housing and divides the inner cavity of the pump housing into a relatively independent upper cavity and a lower cavity, wherein the first water outlet is connected to the upper cavity, and the second water outlet is connected to the lower cavity; the guide vanes are multiple and vertically arranged on the lower surface of the cover plate, wherein the multiple guide vanes cover the circumferential area of ​​the cover plate and are arranged at intervals along the circumference, wherein the guide vanes spirally extend inward from the edge of the cover plate in the opposite direction of the water flow, and a guide channel is constrained between two adjacent guide vanes, and the cover plate portion corresponding to the top of the guide vane is at least partially missing to form a gap for connecting the water channel with the upper cavity;

[0024] The centrifugal impeller is rotatably arranged in the lower cavity. The bottom of the centrifugal impeller is provided with an inlet corresponding to the water suction port, and the side is provided with an outlet corresponding to the guide vane arrangement, which is used to synchronously draw water flow to the first water outlet and the second water outlet.

[0025] The present invention provides spatial guide vanes and impellers in the pump casing for axially guiding and pressurizing water entering the axial direction and then outputting it axially to meet the water pressure requirements. On this basis, the first spray component is arranged on the pump casing without the need to cooperate with the impeller, thereby improving the stability of the water flow entering the first spray component and thus improving the rotational stability of the first spray component. At the same time, since the impeller no longer corresponds to the water inlet of the first spray component, the water pressure at the water inlet of the first spray component is stabilized, avoiding gas inhalation and water leakage problems; the second spray component also obtains a relatively stable water flow output based on the above-mentioned water separation effect.

[0026] Preferably, the first spraying member is a bottom spraying arm for spraying from bottom to top, the bottom spraying arm is arranged at the top of the water return area and is rotatably connected to the first water outlet at the top of the water pump, and the second spraying member is a middle spraying arm located in the middle of the box body and is used for circumferential spraying, and the lower end of the inner water pipe is connected to the second water outlet of the water pump. The above structure is adopted to realize two-way stable water supply using an open water pump.

[0027] Compared with the prior art, the advantages of the present invention are: the present invention provides a second spray component that takes into account both spraying and contact friction cleaning. Compared with the existing spray arm that is completely driven by the viscosity of water flow to perform spray cleaning, the first cleaning brush and the second cleaning brush of the second spray component can not only provide contact cleaning, but the first cleaning brush can also change the inclination during the water spraying process, and the second cleaning brush can change the height during the water spraying process to adapt to the friction cleaning of more tableware, and the change of the inclination and height of the cleaning brush is achieved by relying on the dynamic balance of the impact force of the water flow and the elastic member, and can achieve adaptive adjustment without setting an independent driving member. The structure is simple, easy to use, and is conducive to improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1It is a structural schematic diagram of a cleaning machine according to an embodiment of the present invention;

[0029] Figure 2 It is an assembly diagram of the first spray component, the second spray component and the water pump in the embodiment of the present invention;

[0030] Figure 3 is a cross-sectional view of a second spraying member according to an embodiment of the present invention;

[0031] Figure 4 for Figure 3 A partial enlarged view of

[0032] Figure 5 It is a schematic diagram of the structure of a water pump in an embodiment of the present invention;

[0033] Figure 6 for Figure 5 Schematic diagram of the bottom structure;

[0034] Figure 7 for Figure 5 Exploded diagram of

[0035] Figure 8 for Figure 7 Another angle picture. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below with reference to the accompanying drawings.

[0037] like Figures 1 to 8 As shown, the cleaning machine of this embodiment includes a housing 1, a water pump 2, a first spraying member 3 and a second spraying member 4. A concave water return area 11 is provided at the bottom of the housing 1, and a filter plate 12 is covered on the top of the water return area 11. The water pump 2 is arranged in the water return area 11 and the water inlet is connected to the water return area 11. The first spraying member 3 is arranged above the water return area 11 and is connected to the first water outlet 21 at the top of the water pump 2. The second spraying member 4 is arranged above the first spraying member 3 and is connected to the second water outlet 22 at the side of the water pump 2.

[0038] The second spray element 4 of this embodiment includes:

[0039] The water spray pipe 43 extends vertically in the middle of the box body 1 and at least part of the pipe section is a telescopic pipe. The upper end of the water spray pipe 43 is a water inlet end, and a water spray hole 431 is opened on the side wall of the water spray pipe 43. The lower part of the water spray pipe 43 in this embodiment is a telescopic pipe to control the telescopic height.

[0040] The first cleaning brush 41 is movably connected to the side of the water spray pipe 43, and changes its tilt angle as the water spray pipe 43 is extended or retracted;

[0041] The second cleaning brush 42 is disposed at the lower end of the water spray pipe 43 and changes height as the water spray pipe 43 is extended or retracted;

[0042] The first cleaning brush 41 and the second cleaning brush 42 are used for contact cleaning of tableware in the upper middle portion of the box body 1 .

[0043] The present embodiment provides a second spray component 4 that takes into account both spraying and contact friction cleaning. Compared with the existing spray arm that is completely driven by the viscosity of water flow to perform spray cleaning, the first cleaning brush 41 and the second cleaning brush 42 of the second spray component 4 can not only provide contact cleaning, but the first cleaning brush 41 can also change the inclination and the second cleaning brush can change the height during the water spraying process to adapt to the friction cleaning of more tableware. The change of the inclination and height of the cleaning brush is achieved by relying on the dynamic balance of the impact force of the water flow and the elastic component 45, and adaptive adjustment can be achieved without setting an independent driving component. The structure is simple, easy to use, and is conducive to improving the cleaning effect.

[0044] A vertically extending inner water pipe 6 is provided at the inner side wall of the box body 1, and the upper end of the inner water pipe 6 is connected to a transversely extending water guide pipe 61, and the upper end of the water spray pipe 43 is rotatably connected to the water outlet end of the water guide pipe 61. The water spray pipe 43 is extended and retracted up and down and rotated circumferentially with the spray of the water column. This structure facilitates the placement of the second spray element 4 in the central part of the box body 1, which is conducive to expanding the cleaning range and improving the cleaning effect.

[0045] The water spray pipe 43 is provided with an impeller 44 at the lower end, and the impeller 44 is used to disperse the water flow circumferentially and provide rotational power for the water spray pipe 43. This structure can use the impact force of the water flow to drive the second spray part 4 to rotate, so as to further eliminate the cleaning dead angle and improve the cleaning effect.

[0046] The outlet end of the water pipe 61 is bent downward to form a connector 62. The cross section of the upper end of the water spray pipe 43 is a T-shaped structure 432. The connector 62 has a connecting groove 621 in which the edge of the transverse part of the T-shaped structure can be rotated and clamped. This structure facilitates the rotation and restraint of the upper end of the second spraying member 4 on the water pipe 61.

[0047] The second spraying member 4 also includes a driving structure that can drive the water spray pipe 43 to extend and retract up and down, thereby continuously changing the inclination of the first cleaning brush 41 and the height of the second cleaning brush 42. The driving structure cooperates with the impact force of the water flow to achieve adaptive adjustment. With the above structure, the inclination and height of the cleaning brush can be adaptively adjusted through the impact force of the water flow, which simplifies the structure and is easy to use.

[0048] The driving structure includes an elastic member 45, which is sleeved on the outer periphery of the water guide pipe 61 and the upper end of the elastic member 45 is connected to the upper end of the water spray pipe 43, and the lower end is against the second cleaning brush 42, so that the water spray pipe 43 always maintains the tendency of axial contraction, and the water spray pipe 43 realizes axial reciprocating expansion and contraction under the dynamic balance of the impact force of the water flow and the elastic force of the elastic member 45. The above structure is adopted to facilitate the adaptive adjustment of the axial expansion and contraction of the second spray member 4 by utilizing the elastic member 45 and the impact force of the water flow.

[0049] The first cleaning brush 41 includes a body extending in the length direction, the upper end of the body is rotatably connected to the lower end of a connecting rod 46, the upper end of the connecting rod 46 is rotatably connected to the side wall of the upper end of the water spray pipe 43, and the lower end of the body is rotatably connected to the side wall of the second cleaning brush 42. The body and the connecting rod 46 and the rotatable connection structure of the ends of the two together constitute a matching structure that can change the inclination of the first cleaning brush as the water spray pipe 43 expands and contracts. Such a structure is adopted to improve the stability of the inclination adjustment and height adjustment of the cleaning brush.

[0050] The telescopic pipe section includes a trough portion 401 sunken into the water spray pipe 43 and a crest portion 402 protruding out of the water spray pipe 43. There are multiple water spray holes 431 that are spaced apart on the crest portion of the water spray pipe 43. The trough portion constitutes a guide portion for guiding the water in the water spray pipe 43. The above structure is adopted to reduce the loss of fluid capacity, so that the water column sprayed by the second spraying member 4 is farther, the spray coverage is increased, the cleaning dead angle is eliminated, and the cleaning effect is improved.

[0051] The water pump 2 of this embodiment includes:

[0052] The pump housing 24 has a water inlet 241 at the bottom, a first water outlet 21 at the top, and a second water outlet 22 at the side;

[0053] The space guide vane 25 comprises a cover plate 251 and a guide vane 252. The cover plate 251 is transversely arranged in the middle of the pump housing 24 and divides the inner cavity of the pump housing 24 into a relatively independent upper cavity 201 and a lower cavity 202. The first water outlet 21 is connected to the upper cavity 201, and the second water outlet 22 is connected to the lower cavity 202. There are multiple guide vanes 252 and they are vertically arranged on the lower surface of the cover plate 251. The multiple guide vanes 252 cover the circumferential area of ​​the cover plate 251 and are arranged at intervals along the circumference. The guide vanes 252 spirally extend inward from the edge of the cover plate 251 against the direction of water flow. A guide channel 253 is constrained between two adjacent guide vanes 252. The portion of the cover plate 251 corresponding to the top of the guide vane 252 is at least partially missing to form a gap 203 for connecting the water channel with the upper cavity 201.

[0054] The centrifugal impeller 26 is rotatably disposed in the lower cavity 202 . The bottom of the centrifugal impeller 26 is provided with an inlet corresponding to the water suction port 241 , and the side is provided with an outlet corresponding to the guide vane 252 , which is used to synchronously draw water flow to the first water outlet 21 and the second water outlet 22 .

[0055] In this embodiment, a space guide vane 25 and a centrifugal impeller 26 are provided in the pump housing 24 for axially guiding and pressurizing the axially incoming water and then outputting it axially to meet the water pressure requirement. On this basis, the first spray member 3 is arranged on the pump housing 24 without the need to cooperate with the centrifugal impeller 26, thereby improving the stability of the water flow entering the first spray member 3 and thus improving the rotation stability of the first spray member 3. At the same time, since the centrifugal impeller 26 no longer corresponds to the water inlet of the first spray member 3, the water pressure at the water inlet of the first spray member 3 is stabilized, thereby avoiding the problems of gas suction and water leakage.

[0056] The first spraying member 3 is a bottom spraying arm for spraying from bottom to top, which is arranged at the top of the water return area and is rotatably connected to the first water outlet 21 at the top of the water pump. The second spraying member 4 is a middle spraying arm located in the middle of the box body 1 and is used for circumferential spraying. The lower end of the inner water pipe 6 is connected to the second water outlet 22 of the water pump. The above structure is adopted to realize two-way stable water supply by using an open water pump.

[0057] A motor is disposed at the bottom of the housing 1 , the output shaft of which passes through the bottom wall of the housing and is connected to the centrifugal impeller 26 .

[0058] The cleaning method of this embodiment can control the water flow rates in two ways by adjusting the power of the above-mentioned motor. During the water outlet process of the second water outlet 22, the elastic member cooperates with the impact force of the water flow to realize the adaptive upward and downward extension of the water spray pipe, thereby driving the inclination and height of the cleaning brush to continuously change so as to brush the tableware in various places. At the same time, the water column sprayed from the spray hole cooperates with the cleaning brush to perform spray cleaning.

[0059] The present embodiment provides a second spray component 4 that takes into account both spraying and contact friction cleaning. Compared with the existing spray arm that is completely driven by the viscosity of water flow to perform spray cleaning, the first cleaning brush 41 and the second cleaning brush 42 of the second spray component 4 can not only provide contact cleaning, but the first cleaning brush 41 can also change the inclination and the second cleaning brush can change the height during the water spraying process to adapt to the friction cleaning of more tableware. The change of the inclination and height of the cleaning brush is achieved by relying on the dynamic balance of the impact force of the water flow and the elastic component 45, and adaptive adjustment can be achieved without setting an independent driving component. The structure is simple, easy to use, and is conducive to improving the cleaning effect.

[0060] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A cleaning machine, comprising a box, a water pump, a first spray element and a second spray element, wherein a concave water return area is provided at the bottom of the box, the water pump is provided in the water return area and the water inlet is connected to the water return area, the first spray element is provided above the water return area and is connected to the first water outlet at the top of the water pump, the second spray element is provided in the middle of the box and is connected to the second water outlet at the side of the water pump, characterized in that: The second spraying element comprises A water spray pipe extending vertically in the middle of the box body and at least part of the pipe section is a telescopic pipe, the upper end of the water spray pipe is a water inlet end, and a water spray hole is opened on the side wall of the water spray pipe; A first cleaning brush is movably connected to the side of the water spray pipe and changes its inclination angle as the water spray pipe is extended or retracted; A second cleaning brush is disposed at the lower end of the water spray pipe and changes height as the water spray pipe expands and contracts; The first cleaning brush and the second cleaning brush are used for contact cleaning of tableware in the upper middle part of the box.

2. The cleaning machine according to claim 1, characterized in that: A vertically extending inner water pipe is arranged on the inner side wall of the box body, the upper end of which is connected to a transversely extending water pipe, the upper end of the water spray pipe is rotatably connected to the water outlet end of the water pipe, and the water spray pipe is extended and retracted up and down and rotated circumferentially as the water column is sprayed.

3. The cleaning machine according to claim 2, characterized in that: The water spray pipe is provided with an impeller at the lower end, and the impeller is used to disperse the water flow circumferentially and provide rotational power for the water spray pipe.

4. The cleaning machine according to claim 2, characterized in that: The water outlet end of the water guide pipe is bent downward to form a connector. The cross section of the upper end of the water spray pipe is a T-shaped structure. The connector has a connecting groove in which the edge of the transverse part of the T-shaped structure can be rotated and clamped.

5. The cleaning machine according to any one of claims 1 to 4, characterized in that: The second spraying member also includes a driving structure that can drive the water spray pipe to extend and retract up and down so as to continuously change the inclination of the first cleaning brush and the height of the second cleaning brush. The driving structure cooperates with the impact force of the water flow to achieve adaptive adjustment.

6. The cleaning machine according to claim 5, characterized in that: The driving structure includes an elastic member, which is sleeved on the outer circumference of the water guide pipe and has an upper end connected to the upper end of the water spray pipe and a lower end abutting against the second cleaning brush, so that the water spray pipe always maintains an axial contraction trend, and the water spray pipe achieves axial reciprocating expansion and contraction under the dynamic balance of the water flow impact force and the elastic force of the elastic member.

7. The cleaning machine according to any one of claims 1 to 4, characterized in that: The first cleaning brush includes a main body extending in the length direction, the upper end of the main body is rotatably connected to the lower end of a connecting rod, the upper end of the connecting rod is rotatably connected to the side wall of the upper end of the water spray pipe, the lower end of the main body is rotatably connected to the side wall of the second cleaning brush, and the main body and the connecting rod and the rotating connection structure of the ends of the two together constitute a matching structure that enables the first cleaning brush to change its inclination as the water spray pipe expands and contracts.

8. The cleaning machine according to any one of claims 1 to 4, characterized in that: The telescopic pipe section includes a trough portion sunken into the water spray pipe and a crest portion protruding out of the water spray pipe. The water spray holes are multiple and spaced apart on the crest portion of the water spray pipe. The trough portion constitutes a diversion portion for diverting water in the water spray pipe.

9. The cleaning machine according to any one of claims 1 to 4, characterized in that: The water pump comprises The pump housing has a water inlet at the bottom, a first water outlet at the top, and a second water outlet at the side; A spatial guide vane, comprising a cover plate and a guide vane, wherein the cover plate is transversely arranged in the middle of the pump housing and divides the inner cavity of the pump housing into a relatively independent upper cavity and a lower cavity, wherein the first water outlet is connected to the upper cavity, and the second water outlet is connected to the lower cavity; the guide vanes are multiple and vertically arranged on the lower surface of the cover plate, wherein the multiple guide vanes cover the circumferential area of ​​the cover plate and are arranged at intervals along the circumference, wherein the guide vanes spirally extend inward from the edge of the cover plate in the opposite direction of the water flow, and a guide channel is constrained between two adjacent guide vanes, and the cover plate portion corresponding to the top of the guide vane is at least partially missing to form a gap for connecting the water channel with the upper cavity; The centrifugal impeller is rotatably arranged in the lower cavity. The bottom of the centrifugal impeller is provided with an inlet corresponding to the water suction port, and the side is provided with an outlet corresponding to the guide vane arrangement, which is used to synchronously draw water flow to the first water outlet and the second water outlet.

10. The cleaning machine according to claim 9, characterized in that: The first spray component is a bottom spray arm used for spraying from bottom to top. The bottom spray arm is arranged at the top of the return water area and is rotatably connected to the first water outlet at the top of the water pump. The second spray component is a middle spray arm located in the middle of the box body and used for circumferential spraying. The lower end of the inner water pipe is connected to the second water outlet of the water pump.

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