A cleaning machine

Abstract

The present application relates to a kind of cleaning machines, including sink body, backwater box, spray arm, impeller, driving element, the present application is provided with backwater port and backwater box in the bottom of sink body, when needing to use sink body as dishwasher, spray arm is placed into sink body, driving element drives impeller rotation, impeller is floated to the upper portion in spray arm under the impact of water flow and goes up, impeller rotates and draws water, water flow is realized spray through drain, backwater box, spray arm;When needing to use sink body as ordinary sink, spray arm is removed, driving element does not run, impeller is closed under the action of weight and goes down backwater port, water flow is directly drained to sewer pipe through drain;It is convenient to switch between dishwasher and ordinary sink and use, convenient to use;And, compared with the existing ordinary sink, the change in the sink body of the present application only opens backwater port, and the overall structure is simple, and the modification cost is low;The cooperation mode of spray arm and backwater port is convenient to operate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dishwashers, in particular to a cleaning machine. BACKGROUND

[0002] At present, most users' kitchens are generally provided with two sinks. If a sink-type dishwasher is installed, one of the two sinks is used as a common sink, and the other sink is used as a washing tank of the dishwasher. A spraying system is installed in the washing tank, and the washing tank cannot be used as a common sink.

[0003] The applicant's prior application CN202010900533.0 "A cleaning basket and a sink applying the same" discloses a structure that can use a sink as a dishwasher and also as a common sink. The cleaning basket includes a cleaning basket body having a washing cavity. The cleaning basket body has a flow channel extending from the bottom to the side. The inner wall of the cleaning basket body is provided with a spray hole for water in the flow channel to spray out. The bottom of the cleaning basket body is provided with a concave circular water pumping area connected with the flow channel. The water pumping area is provided with an impeller for pumping water at the bottom of the cleaning basket body into the flow channel. In use, the impeller rotates to pump water at the bottom of the cleaning basket into the flow channel at the side of the cleaning basket, and further sprays the fruits, vegetables or dishes in the cleaning basket. The cleaning basket and the sink are easily integrated. The cleaning basket is placed in the sink, and the cover is covered. It can be used as an automatic cleaning machine. When it is not needed to be used as a cleaning machine, the cleaning basket is taken out of the sink, and the cover is taken out at the same time. It can be used as a common sink.

[0004] The above structure is very convenient when switching between the dishwasher and the common sink. However, when used as a dishwasher, a special structure cleaning basket is needed, and a complex driving mechanism is installed at the bottom of the sink. The overall structure is complex, and the production cost is high. SUMMARY

[0005] The present application solves the technical problem of the prior art by providing 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 a dishwasher and a common sink.

[0006] The technical solution adopted by the present application to solve the above technical problem is:

[0007] A cleaning machine includes a sink body, and a drain at the bottom of the sink body. The cleaning machine further includes:

[0008] A water return box is provided on the outer bottom wall of the sink body and surrounds the water return port. The side and / or bottom of the water return box is connected to the drain.

[0009] a spray arm detachably arranged in the sink body and having a water inlet opening arranged corresponding to the backwater opening and a water outlet opening arranged corresponding to the water outlet hole in the top wall;

[0010] a vane wheel movably arranged in the backwater box through the backwater opening;

[0011] a driving member arranged at the bottom of the backwater box and having an output shaft connected with the vane wheel through the backwater box for driving the vane wheel to rotate;

[0012] in the state that the spray arm is arranged at the bottom of the sink body and the driving member drives the vane wheel to rotate, the vane wheel is lifted to its upper portion through the backwater opening and the water inlet opening is located in the spray arm; in the state that the spray arm is taken out of the sink body and the driving member is stopped, the vane wheel is lowered to cover the backwater opening with its upper end, thereby closing the backwater opening.

[0013] Preferably, the vane wheel comprises a shaft, vanes and an end cover, the shaft is movably arranged on the output shaft of the driving member, the vanes are arranged on the outer wall of the shaft and spaced from each other, the end cover horizontally covers the top of the vanes, the vanes pass through the backwater opening, the end cover is located above the backwater opening and has a diameter larger than that of the backwater opening. With the above structure, when the sink body is used as a common sink, the spray arm is taken out of the sink body, the vane wheel falls down under its own weight until the end cover is arranged on the inner bottom wall of the sink body at the edge of the backwater opening, thereby closing the backwater opening, at this time, the sewage is discharged through the drain opening; the sink body retains the original structure to the maximum and is no different from the common sink, thereby being convenient to use.

[0014] Preferably, the bottom wall of the sink body is provided with a supporting platform sinking around the edge of the backwater opening, in the state that the end cover is arranged on the supporting platform, the upper wall of the end cover is flush with the inner bottom wall of the sink body. This structure is convenient for the sink bottom wall to guide the flow and collect the residue, thereby avoiding the residue to be accumulated in the local due to the uneven height.

[0015] Preferably, the shaft is provided with a shaft hole extending along the axial direction, the inner diameter of the upper section of the shaft hole is larger than that of the lower section, and the output shaft of the driving member is arranged in the shaft hole and provided with a limiting portion at the upper end for abutting against the lower end surface of the upper section of the shaft hole. With the above structure, the limiting position of the vane wheel can be limited, thereby avoiding the vane wheel to collide with the inner top wall of the spray arm and affecting the water pumping effect.

[0016] Preferably, the upper portion of the shaft is provided with an arc-shaped flow guide surface gradually increasing from bottom to top, the lower portion of the vane is a axial flow vane, and the upper portion of the vane is a centrifugal vane arranged on the flow guide surface. This structure is favorable for improving the effect of dispersing the water flow in the circumferential direction in the spray arm and reducing the energy loss when the water flow changes from the vertical conveying to the horizontal conveying.

[0017] Preferably, a flow guide sleeve extending downward from the edge of the water return opening is arranged in the water return box, and a gap for water to pass through is formed between the lower end of the flow guide sleeve and the bottom wall of the water return box, and the lower part of the impeller is arranged at the middle part of the flow guide sleeve when the impeller rises to the state of being located in the spray arm at the upper part. The structure cooperates with the impeller to improve the water pumping effect.

[0018] Further preferably, the flow guide sleeve comprises a first flow guide sleeve and a second flow guide sleeve which are connected to each other, the inner diameter of the second flow guide sleeve is smaller than that of the first flow guide sleeve, and the two are smoothly and transitionally connected at the connection part. The structure further improves the water pumping effect.

[0019] A lower water cavity is arranged on the outer bottom wall of the sink body and surrounds the lower water outlet, and a water guide opening is arranged on the side wall of the water return box and is close to the bottom, and the water guide opening is connected to the lower water cavity through a water guide pipe. The water guide opening is arranged at the lower edge of the second flow guide sleeve, which improves the water pumping effect.

[0020] Preferably, a drain opening is arranged at the bottom of the lower water cavity, and a drain mechanism for quickly draining water in the lower water cavity is arranged at the bottom of the lower water cavity, and the upper end of the drain mechanism is connected to the drain opening. The above structure is arranged to quickly drain water and keep the sink body clean.

[0021] In order to facilitate the installation of the spray arm on the bottom wall of the sink body, a mounting seat which can be rotationally connected to the spray arm is arranged on the lower side of the spray arm, and a first magnet is arranged in the mounting seat. Correspondingly, a second magnet which can be attracted to the first magnet to constrain the spray arm on the bottom wall of the sink body is arranged on the bottom wall of the sink body. The above structure only needs to align the water inlet of the spray arm with the water return opening and then lower the spray arm to complete the installation, which is convenient to operate.

[0022] Compared with the prior art, the advantages of the present application are as follows: the water return opening and the water return box are arranged at the bottom of the sink body, the spray arm is placed in the sink body when the sink body is used as a dishwasher, the driving member drives the impeller to rotate, the impeller floats upward to the upper part located in the spray arm under the impact of the water flow, the impeller rotates to pump water, and the water flow realizes spraying through the lower water outlet, the water return box and the spray arm; when the sink body is used as a common sink, the spray arm is removed, the driving member is not operated, the impeller falls back to the closed water return opening under the action of gravity, and the water flow directly drains to the drain pipe through the lower water outlet; the sink body can be conveniently switched between being used as a dishwasher and being used as a common sink; compared with the existing common sink, the present application only needs to arrange the water return opening in the sink body, and the overall structure is simple and the modification cost is low; and the cooperation mode of the spray arm and the water return opening is convenient to operate. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1This is a schematic diagram of the structure of an embodiment of the present invention (used as a dishwasher);

[0024] Figure 2 This is a schematic diagram of the structure of an embodiment of the present invention (used as a regular water tank);

[0025] Figure 3 for Figure 2 A sectional view;

[0026] Figure 4 for Figure 1 A sectional view;

[0027] Figure 5 This is a schematic diagram of the spray arm in an embodiment of the present invention. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1 to 5 As shown, the cleaning machine in this embodiment includes a water tank body 1, a return water box 2, a spray arm 3, an impeller 4, and a drive component 5.

[0030] The water tank body 1 has a drain outlet 11 at its bottom. A drainage cavity 12 is arranged around the drain outlet 11 on the outer bottom wall of the water tank body 1. A slag collection basket 7 is installed in the drainage cavity 12. A drain outlet 121 is opened at the bottom of the drainage cavity 12. A drainage mechanism 6 is also installed at the bottom of the drainage cavity 12 to quickly drain the water in the drainage cavity 12. The upper end of the drainage mechanism 6 is connected to the drain outlet 121. The drainage mechanism 6 includes a traction valve 61 located upstream and a drainage pump 62 located downstream. This structure facilitates rapid water drainage and ensures that the water tank body is free of residual water and remains clean.

[0031] A return water inlet 13 is located next to the drain outlet 11 on the bottom wall of the water tank body 1. A return water box 2 is located on the outer bottom wall of the water tank body 1 and surrounds the return water inlet 13. The side of the return water box 2 is connected to the drain outlet 11. A guide water inlet 21 is located near the bottom on the side wall of the return water box 2. The guide water inlet 21 is connected to the drain cavity 12 through a guide water pipe 22.

[0032] The spray arm 3 is detachably arranged in the sink body 1, and the bottom wall is provided with a water inlet 31 arranged corresponding to the backwater opening 13, and the top wall is provided with a water spraying hole 32. The lower side of the spray arm 3 is provided with a mounting seat 33 capable of being rotationally connected therewith, the mounting seat 33 is provided with a first magnet 331, and correspondingly, the bottom wall of the sink body 1 is provided with a second magnet 14 capable of being attracted to the first magnet 331 so as to constrain the spray arm 3 on the bottom wall of the sink body 1. By adopting the above structure, the installation of the spray arm 3 can be completed by only aligning the water inlet 31 of the spray arm 3 with the backwater opening 13 and then placing down the spray arm 3, and the spray arm 3 can be taken out by only lifting the spray arm 3 with force, so that the operation is convenient.

[0033] The impeller 4 is movably arranged in the backwater box 2 through the backwater opening 13, the driving member 5 is an electric motor, is arranged at the bottom of the backwater box 2, and the output shaft 51 thereof is connected with the impeller 4 through the backwater box 2 and is used for driving the impeller 4 to rotate. In the state that the spray arm 3 is arranged at the bottom of the sink body 1 and the driving member 5 drives the impeller 4 to rotate, the impeller 4 is lifted to the upper portion thereof through the backwater opening 13, and the water inlet 31 is arranged in the spray arm 3. In the state that the spray arm 3 is taken out from the sink body 1 and the driving member 5 stops running, the impeller 4 is lowered to the upper end thereof covering the backwater opening 13 and closing the backwater opening 13.

[0034] The above-mentioned impeller 4 comprises a shaft 41, blades 42 and an end cover 43. The shaft 41 is movably constrained on the output shaft 51 of the driving member 5. The blades 42 are a plurality of and are arranged on the outer peripheral wall of the shaft 41 in a spaced manner. The end cover 43 horizontally covers the top of the blades 42. The blades 42 are arranged through the backwater opening 13. The end cover 43 is located above the backwater opening 13 and has a diameter greater than that of the backwater opening 13. When the sink body 1 is used as a common sink, the spray arm 3 is taken out from the sink body 1, the impeller 4 falls downward under the gravity until the end cover 43 is arranged on the inner bottom wall of the sink body 1 at the edge of the backwater opening 13 and the backwater opening 13 is closed, at this time, the sewage is discharged through the drain opening 11. The sink body 1 retains the original structure to the maximum and is not different from the existing common sink, and is convenient to use.

[0035] The bottom wall of the above-mentioned sink body 1 is provided with a supporting table 15 sunken around the edge of the backwater opening 13. In the state that the end cover 43 is arranged on the supporting table 15, the upper wall surface of the end cover 43 is flush with the inner bottom wall of the sink body 1. This structure facilitates the sink bottom wall to guide flow and collect residues and avoids the residues to be accumulated in a local part due to unevenness.

[0036] The above-mentioned shaft 41 is provided with a shaft hole 411 extending in the axial direction. The inner diameter of the upper section 4111 of the shaft hole 411 is greater than that of the lower section 4112. The output shaft 51 of the driving member 5 is arranged in the shaft hole 411 and is provided with a limiting portion 52 at the upper end thereof and capable of abutting against the lower end surface of the upper section of the shaft hole 411. By adopting the above structure, the limiting position of the impeller 4 can be limited, and the impeller 4 and the inner top wall of the spray arm 3 are prevented from colliding and affecting the water pumping effect.

[0037] The upper portion of the shaft 41 gradually increases in diameter from bottom to top near the end cover 43 to form an arc-shaped flow guide surface 412, the lower portion of the vane 42 is a axial flow vane, and the upper portion of the vane 42 is a centrifugal vane arranged on the flow guide surface 412. This structure is conducive to improving the effect of circumferential dispersion of water flow in the spray arm 3 and reducing the energy loss when the water flow changes from vertical delivery to horizontal delivery.

[0038] The water return box 2 of the embodiment is provided with a flow guide sleeve 23 extending downward from the edge of the water return port 13, and a gap for water passing is formed between the lower end of the flow guide sleeve 23 and the bottom wall of the water return box 2. When the impeller 4 rises to the state that the upper portion of the impeller 4 is located in the spray arm 3, the middle portion of the flow guide sleeve 23 corresponds to the lower portion of the impeller 4. The flow guide sleeve 23 includes a first flow guide sleeve 231 and a second flow guide sleeve 232 which are connected to each other in a smooth transition. The water inlet 21 is arranged at the lower edge of the second flow guide sleeve 232. This structure is conducive to further improving the water pumping effect.

[0039] The water return port 13 and the water return box 2 are arranged at the bottom of the sink body 1. When the sink body 1 is used as a dishwasher, the spray arm 3 is placed in the sink body 1, the driving member 5 drives the impeller 4 to rotate, the impeller 4 floats upward under the impact of water flow to the upper portion located in the spray arm 3, the impeller 4 rotates to pump water, and the water flow realizes spraying through the drain port 11, the water return box 2 and the spray arm 3. When the sink body 1 is used as a common sink, the spray arm 3 is removed, the driving member 5 is not operated, the impeller 4 is lowered under the action of gravity, and the water return port 13 is closed, so that the water flow is directly discharged to the drain pipe through the drain port 11. This structure is convenient for switching between the dishwasher and the common sink, and is easy to use.

[0040] In the specification and claims of the present application, terms indicating directions, such as "front", "back", "up", "down", "left", "right", "side", "top", "bottom", etc. are used to describe various example structural parts and elements of the present application, but these terms are used herein only for the purpose of convenience of description and are determined based on the example orientation shown in the drawings. Since the disclosed embodiments of the present application can be arranged in different directions, these terms indicating directions are only for illustration and should not be considered as limitations, such as "up" and "down" are not necessarily limited to the direction opposite or consistent with the direction of gravity.

Claims

1. A cleaning machine comprising a sink body (1), the bottom of which is provided with a drain (11), characterized in that: Also included The sink body (1) is provided with a water return port (13) beside the drain port (11) on the bottom wall, and the water return box (2) is arranged on the outer bottom wall of the sink body (1) and surrounds the water return port (13), and the side and / or bottom of the water return box (2) is connected with the drain port (11); The spray arm (3) is detachably arranged in the sink body (1) and is provided with a water inlet port (31) on the bottom wall corresponding to the water return port (13) and a water outlet hole (32) on the top wall; The impeller (4) is movably arranged in the water return box (2) through the water return port (13); The driving member (5) is arranged at the bottom of the water return box (2) and the output shaft (51) passes through the water return box (2) and is connected with the impeller (4) for driving the impeller (4) to rotate; In the state that the spray arm (3) is installed on the bottom of the sink body (1) and the driving member (5) drives the impeller (4) to rotate, the impeller (4) rises to the upper part thereof passing through the water return port (13) and the water inlet port (31) is located in the spray arm (3); in the state that the spray arm (3) is taken out of the sink body (1) and the driving member (5) stops running, the impeller (4) descends to the upper end thereof covering the water return port (13) to close the water return port (13); The spray arm (3) is provided with a mounting seat (33) rotatably connected therewith, and the mounting seat (33) is provided with a first magnet (331); correspondingly, the bottom wall of the sink body (1) is provided with a second magnet (14) which can be attracted to the first magnet (331) to constrain the spray arm (3) on the bottom wall of the sink body (1).

2. The cleaning machine of claim 1, wherein: The impeller (4) comprises a shaft (41), blades (42) and an end cover (43), the shaft (41) is movably constrained on the output shaft (51) of the driving member (5), the blades (42) are arranged on the outer peripheral wall of the shaft (41) in plurality and are spaced apart, and the end cover (43) covers the top of the blades (42); the blades (42) pass through the water return port (13), and the end cover (43) is located above the water return port (13) and has a diameter greater than that of the water return port (13).

3. The cleaning machine of claim 2, wherein: The bottom wall of the sink body (1) is provided with a supporting table (15) sunken around the edge of the water return port (13), and the end cover (43) is arranged on the supporting table (15); the upper wall surface of the end cover (43) is flush with the inner bottom wall of the sink body (1).

4. The cleaning machine of claim 2, wherein: The shaft (41) is provided with a shaft hole (411) extending in the axial direction, the inner diameter of the upper section (4111) of the shaft hole (411) is greater than that of the lower section (4112), and the output shaft (51) of the driving member (5) is arranged in the shaft hole (411) and is provided with a limiting portion (52) at the upper end which can abut against the lower end surface of the upper section (4111) of the shaft hole (411).

5. The cleaning machine of claim 2, wherein: The upper part of the shaft (41) is gradually increased in diameter from bottom to top near the end cover (43) to form an arc-shaped flow guide surface (412), the lower part of the blade (42) is an axial flow blade (42), and the upper part of the blade (42) is a centrifugal blade (42) arranged on the flow guide surface (412).

6. The cleaning machine of claim 2, wherein: The water return box (2) is provided with a flow guide sleeve (23) extending downward from the edge of the water return port (13), and a gap for water passing between the lower end of the flow guide sleeve (23) and the bottom wall of the water return box (2). When the impeller (4) rises to a state where the upper part thereof is located in the spray arm (3), the lower part of the impeller (4) is arranged corresponding to the middle part of the flow guide sleeve (23).

7. The cleaning machine of claim 6, wherein: The flow guide sleeve (23) comprises a first flow guide sleeve (231) and a second flow guide sleeve (232) which are connected to each other, the inner diameter of the second flow guide sleeve (232) is smaller than that of the first flow guide sleeve (231), and the two are smoothly connected at the connection part.

8. The cleaning machine of claim 6, wherein: The outer bottom wall of the water tank body (1) is provided with a drain cavity (12) arranged around the drain port (11), and the side wall of the water return box (2) is provided with a water guide port (21) arranged near the bottom, which is connected with the drain cavity (12) through a water guide pipe (22).

9. The cleaning machine of claim 8, wherein: The bottom of the drain cavity (12) is provided with a drain port (121), and the bottom of the drain cavity (12) is further provided with a drain mechanism (7) for quickly draining water in the drain cavity (12), and the upper end of the drain mechanism (7) is connected with the drain port (121). The bottom of the drain cavity (12) is provided with a drain port (121), and the bottom of the drain cavity (12) is further provided with a drain mechanism (7) for quickly draining water in the drain cavity (12), and the upper end of the drain mechanism (7) is connected with the drain port (121).

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