Water flow system and cleaning machine

Abstract

The present invention relates to a water flow system and a cleaning machine, wherein the water flow system includes a spray arm and a guide seat, wherein a water inlet is formed on the bottom wall of the spray arm, and a flow channel connected to the water inlet is provided in the spray arm, wherein the lower portion and / or the bottom of the guide seat has a water inlet, and the top has an upper port corresponding to the water inlet of the spray arm, and the top of the guide seat is provided with a plug-in portion that can be plugged and connected to the water inlet of the spray arm, and the upper port is located at the top of the plug-in portion. The guide seat of the present invention is plug-in connected to the water inlet of the spray arm, and an assembly gap is formed between the plug-in portion and the water inlet. The throat of the flow channel extends toward the water inlet and extends to the assembly gap. In this way, during the cleaning process, the negative pressure area of the spray arm is located inside the water inlet, while other parts of the spray arm flow channel are all positive pressure. The positive pressure can press a small amount of water into the assembly gap, thereby water-sealing the water inlet and preventing liquid leakage or gas inhalation at the water inlet, thereby improving the water jet head and the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of dishwashers, and in particular to a water flow system and a washing machine. Background Art

[0002] In dishwashers using an open water flow system, the spray arm is generally fixed to the bottom of the sink by snap-fitting with the diverter seat.

[0003] For example, the Chinese invention patent application "A Cleaning Machine and Cleaning Method" (publication number: CN112244711A) with application number CN202011063575.X discloses a structure including a box body, a spray arm, a water-drawing impeller and a motor. The spray arm is arranged in the box body and has a water inlet on the bottom wall and a water spray hole on the top wall. The water-drawing impeller is rotatably arranged in the box body and is used to pump water at the bottom of the box body into the spray arm. The motor is arranged at the bottom of the box body and is used to drive the water-drawing impeller to rotate. A guide seat is provided on the bottom wall of the box body, and the spray arm is rotatably supported at the upper end of the guide seat. A guide sleeve extending downward from the edge of the water inlet of the spray arm is provided in the guide seat. The lower part of the water-drawing impeller is located in the guide sleeve and the upper part passes through the water inlet and is located in the spray arm.

[0004] In the open water flow system of the above-mentioned dishwasher, the guide seat, as a water absorption component, constitutes an important part of the water flow system. The structure of the guide seat and the connection structure between it and the spray arm directly affect the energy and water efficiency of the dishwasher. In the existing open water flow system, the water inlet near the bottom wall of the spray arm is restrained to the top of the guide seat by a buckle. When in the cleaning state, the cleaning liquid level cannot cover the top of the guide seat. That is, the connection between the spray arm, the buckle, and the guide seat is directly in contact with the air, and a negative pressure area is formed in the spray arm cavity near the water inlet. Figure 1 As shown, a negative pressure area will be formed at point A, and during the rotation of the spray arm, the spray arm will be raised by a certain gap. This gap not only poses a risk of leakage, but also external air will be sucked into the negative pressure area along the gap and further enter the spray arm with the water flow, resulting in unstable water pump power, seriously affecting the head of the water flow sprayed by the spray arm and the cleaning effect; and if a higher liquid level is maintained, a larger amount of washing water will be consumed, increasing the cost of use. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a water flow system that improves the water jet head and cleaning effect by improving the sealing performance to avoid liquid leakage and gas inhalation into the spray arm.

[0006] The second technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned water flow system in view of the current status of the existing technology.

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

[0008] A water flow system includes a spray arm and a guide seat, a water inlet is opened on the bottom wall of the spray arm, a flow channel connected to the water inlet is provided in the spray arm, a water inlet is provided at the lower part and / or bottom of the guide seat, and an upper port connected to the water inlet of the spray arm is provided at the top, a plug-in portion that can be plugged and connected to the water inlet of the spray arm is provided at the top of the guide seat, the upper port is located at the top of the plug-in portion, an assembly gap is formed between the plug-in portion and the water inlet, and the throat of the flow channel extends toward the water inlet and is adjacent to the assembly gap.

[0009] Preferably, the flow channel throat extends into the water inlet and is located inside the assembly gap. The tip of the flow channel throat is positioned beyond the top of the plug-in portion corresponding to the assembly gap. The negative pressure area corresponds to the water inlet. This structure effectively separates the negative pressure area from the assembly gap, allowing the assembly gap to correspond to the positive pressure area of the flow channel. This positive pressure forces a small amount of water into the assembly gap, forming a water seal and preventing leakage and gas inhalation.

[0010] In the present invention, in the cleaning state, the pressure in the spray arm flow channel is higher than atmospheric pressure. This pressure forces the water in the spray arm flow channel into the assembly gap, thereby forming a water seal around the water inlet. This structure helps improve the sealing performance of the water inlet, preventing liquid leakage and gas inhalation at the water inlet.

[0011] As an improvement, a clamping ring is provided on the top of the guide seat, and the bottom of the spray arm is connected to the clamping ring. In addition, the clamping ring, the bottom of the spray arm, and the top of the guide seat together enclose a sealed cavity, and the sealed cavity surrounds the periphery of the assembly gap. Preferably, the top of the guide seat has a platform surrounding the periphery of the plug-in portion, and the clamping ring has a rim extending downward corresponding to the outer edge of the platform. The rim, the inner bottom wall of the clamping ring, the bottom of the assembly sleeve, the outer wall of the plug-in portion, and the platform together enclose the sealed cavity. The sealed cavity is located below the negative pressure area and corresponds to the periphery of the negative pressure area, thereby wrapping up the negative pressure area. During the cleaning process, the pressure in the flow channel of the spray arm must be higher than the atmospheric pressure, so that a small amount of water will be pressed from the spray arm into the assembly gap to form a water seal. The above-mentioned sealed cavity surrounds the water seal position, which is conducive to improving the stability of the water seal and further avoiding liquid leakage and gas inhalation.

[0012] Preferably, the bottom wall of the spray arm is provided with a mounting sleeve extending downward from the edge of the water inlet and passing through the mounting opening of the collar. The plug-in portion is inserted into the mounting sleeve. The lower edge of the mounting sleeve is provided with a clip that abuts against the lower wall of the collar, thereby removably securing the spray arm to the collar. This structure facilitates assembly and further improves sealing performance.

[0013] Preferably, a mounting sleeve is provided on the outer periphery of the deflector seat, the upper edge of the mounting sleeve abuts against the outer edge of the deflector seat platform, and the bottom edge of the surrounding edge abuts against the upper edge of the mounting sleeve. The mounting sleeve is used to connect the deflector seat to the drain plate of the dishwasher.

[0014] Preferably, a clamping block is provided on the inner wall of the surrounding edge, and correspondingly, a clamping column extending upward and detachably engaged with the clamping block is provided on the platform of the guide seat.

[0015] In the present invention, the guide seat includes a guide sleeve that extends vertically through the guide seat. The side of the guide seat has a water inlet connected to the lower end of the guide sleeve. The side of the guide sleeve has a water inlet notch extending upward from the bottom edge. The outer wall of the guide sleeve is provided with a guide plate extending outward from the edge of the water inlet notch, and the top wall height of the guide plate gradually decreases radially outward along the guide sleeve. During the cleaning process of existing dishwashers, due to the high water intake of the guide seat, when the actual liquid level is low, the pump may draw air into the flow channel during operation. The spray arm is generally located in the center of the washing chamber, and the debris collection basket is arranged on the filter plate next to the guide seat. During the filtering and collecting debris process, due to the water intake on the guide seat, the water flow velocity near the guide seat is faster than the water flow velocity at the debris collection basket. This results in poor debris collection effect of the eccentrically arranged debris collection basket. In the above structure, the water inlet gap is conducive to the rapid backflow of water. While lowering the water absorption level, the guide plate is conducive to guiding the local water flow to avoid gas inhalation, thereby reducing the amount of water used for washing and improving the stability of the water pump; when the guide plate is arranged close to the slag collecting basket, it is conducive to increasing the water flow rate at the slag collecting basket, thereby improving the slag collection effect.

[0016] Preferably, the deflector includes a top plate extending outward from the top edge of the water inlet notch and side plates extending outward from the sidewall edges of the water inlet notch. The top plate and side plates together enclose a water absorption area. When the deflector seat is mounted on the bottom wall of the dishwasher, the water absorption area becomes a semi-enclosed area at the bottom of the dishwasher. This effectively lowers the local water absorption level, increases the local water flow rate, and regulates the water flow direction to a certain extent, thereby preventing air from being drawn into the spray arms, reducing wash water consumption, and improving water pump stability.

[0017] Preferably, there is at least one water absorption area, and the height of the lower edge of the guide sleeve located next to the water absorption area is lower than the height of the outer edge of the top plate.

[0018] Preferably, a smoothly transitioned arc-shaped flow-guiding structure is formed at the junction between the top plate and the flow-guiding sleeve to reduce water flow energy loss.

[0019] Preferably, the width of the water absorption area gradually decreases along the water flow direction to form a fan-shaped structure, which is conducive to improving the water absorption effect.

[0020] In order to facilitate assembly, the guide seat further includes a base spaced apart below the guide sleeve, the water inlet is formed between the base and the lower end of the guide sleeve, and the lower edge of the side plate is supported on the base.

[0021] Preferably, the base is annular and arranged corresponding to the periphery of the guide sleeve. A vertically arranged support arm is provided on the base. The inner side of the upper part of the support arm is connected to the outer wall of the guide sleeve. The upper end of the support arm is provided with a clip for installing the spray part, and the clip is used to install the spray arm.

[0022] Preferably, the upper wall surface of the base is gradually inclined upward from the outside to the inside along the radial direction to form a diversion slope. This structure is conducive to reducing water flow energy loss and improving water diversion effect.

[0023] As an improvement, the outer periphery of the guide seat is further provided with a guide plate extending radially outward and gradually decreasing in height. This guide plate at least partially covers the water absorption area and continues to extend outward along the outer edge of the guide plate. This structure further increases the area and volume of the water flow guidance area and further lowers the water absorption level, thereby preventing air from being drawn into the spray arm, reducing washing water consumption, and improving water pump stability.

[0024] Preferably, at least a portion of the outer edge of the guide plate is lower than the lower edge of the guide sleeve. The two water absorption areas are spaced apart and arranged around the outer periphery of the guide seat, and both water absorption areas are covered by the guide plate. The guide plate covers an angle of 100° to 150° around the circumference of the guide seat.

[0025] Preferably, the guide plates have different radial lengths, with the guide plate corresponding to the first water absorption area being longer than the guide plate corresponding to the second water absorption area. Preferably, the height of the outer edge of the guide plate corresponding to the first water absorption area is no higher than the height of the lower edge of the guide sleeve, and the height of the outer edge of the guide plate corresponding to the second water absorption area is lower than the height of the lower edge of the guide sleeve.

[0026] The above structure makes the edge height of the guide plate corresponding to the first water absorption area higher than the edge height of the guide plate corresponding to the second water absorption area, which is convenient for controlling the water absorption height of different circumferential areas according to needs. At the same time, the water flow rate in different radial areas is adjusted to improve the slag collection effect.

[0027] Preferably, the edge of the guide plate is provided with a vertically arranged side panel, which together with the guide plate encloses a drainage area. The drainage area separates the area where the water level of the water absorption is reduced from the area where the water level of the water absorption is not reduced, making it easier to position the guide seat according to the position of the slag collection basket when installing the guide seat. This is because: during the dishwashing process, most of the water that falls back will enter the drain area through the slag collection basket. The water that enters the drain area will quickly flow back to the spray arm through the guide seat through the drainage area near the slag collection basket where the water level is reduced, which is beneficial to improving the return water efficiency and preventing the entry of bubbles. At the same time, under the action of the water diversion area, the water flow velocity at the slag collection basket is increased, which has a certain flushing effect on the side walls of the slag collection basket, which is beneficial to improving the slag collection effect and automatically cleaning the slag basket.

[0028] In the present invention, an arc-shaped flow guide piece connected with the upper end of the flow guide piece and with gradually increasing inner diameter is provided on the top of the flow guide sleeve, and the clamping column on the top of the support arm is arranged through the platform.

[0029] The water flow system of the present invention also includes an impeller assembly and a driving member. The spray arm is arranged on the top of the guide seat. The impeller assembly is used to suck water from the water inlet into the spray arm, and the driving member is used to drive the impeller assembly to rotate.

[0030] A cleaning machine using the above-mentioned water flow system includes a box body, the bottom of the box body has a concave drain area, the top of the drain area is covered with a drain plate, and a slag collection basket arranged near the first edge of the drain area is installed on the drain plate. The water flow system is used to pump water from the drain area to above the drain plate, the guide seat is installed in the drain area and arranged near the second edge of the drain area, and the guide plate extends toward the slag collection basket.

[0031] A cleaning machine using the above-mentioned water flow system includes a box body, the bottom of the box body has a concave drain area, the top of the drain area is covered with a drain plate, a slag collecting basket arranged near the first edge of the drain area is installed on the drain plate, the drain area is provided with a water flow system for pumping water in the drain area to the top of the drain plate, the guide seat is installed in the middle of the drain area and arranged near the second edge of the drain area, and the guide plate extends toward the slag collecting basket.

[0032] A cleaning machine using the above-mentioned water flow system includes a box body, the bottom of the box body has a concave drain area, the top of the drain area is covered with a drain plate, and a slag collecting basket arranged near the first edge of the drain area is installed on the drain plate, and a water flow system for pumping water from the drain area to the top of the drain plate is provided in the drain area, the guide seat is installed in the middle of the drain area and arranged near the second edge of the drain area, and the guide plate extends toward the slag collecting basket; a heating element arranged near the third edge is installed at the bottom of the drain area, the outer port of the first water absorption area is arranged near the heating element, and the outer port of the second water absorption area is arranged near the slag collecting basket, accordingly, the guide plate corresponding to the first water absorption area extends near the heating element, and the guide plate corresponding to the second water absorption area extends toward the side of the slag collecting basket. Compared with the prior art, the advantages of the present invention are that: the guide seat of the present invention is plug-in connected to the water inlet of the spray arm, an assembly gap is formed between the plug-in part and the water inlet, and the throat of the flow channel extends toward the water inlet and extends to the inside of the assembly gap. In this way, during the cleaning process, the negative pressure area of the spray arm is located on the inside of the water inlet, while other parts of the spray arm flow channel are positive pressure. The positive pressure can press a small amount of water into the assembly gap, thereby sealing the water inlet, avoiding liquid leakage or gas inhalation at the water inlet, and thus improving the water jet head and cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the structure of the cleaning machine in an embodiment of the present invention (with the drain plate hidden);

[0034] Figure 2 for Figure 1 sectional view of

[0035] Figure 3 for Figure 1 Schematic diagram of the structure of the hidden spray arm and impeller assembly;

[0036] Figure 4 Schematic diagram of the structure of the guide seat in an embodiment of the present invention;

[0037] Figure 5 for Figure 4 Structural diagram from another angle;

[0038] Figure 6 for Figure 4 Side view of

[0039] Figure 7 for Figure 4 A top view of

[0040] Figure 8 This is a partial structural diagram of the guide seat in an embodiment of the present invention (excluding the integrated structure consisting of the arc-shaped guide member and the guide plate);

[0041] Figure 9This is a partial structural diagram of the water flow system in an embodiment of the present invention (part of the housing that hides the spray arm);

[0042] Figure 10 for Figure 9 sectional view of . DETAILED DESCRIPTION

[0043] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0044] The water flow system of this embodiment is mainly used in a washing machine, which is used to wash dishes, fruits and vegetables.

[0045] like Figure 2 、 9 As shown in Figures 10 and 10, the water flow system includes a spray arm 3, a guide seat 6, an impeller assembly 4, and a drive member 5. The spray arm 3 is located on top of the guide seat 6. A water inlet 31 is formed in the center of the bottom wall of the spray arm 3. The spray arm 3 has a flow channel 32 connected to the water inlet 31. The top wall of the spray arm 3 has a plurality of spray holes 33 connected to the flow channel 32. A water collection chamber 34 is formed in the center of the spray arm 3 corresponding to the water inlet 31. The throat 321 of the flow channel 32 corresponds to the edge of the water collection chamber 34. During the cleaning process, a negative pressure area is formed in the water collection chamber 34. The impeller assembly 4 is used to draw water from the water inlet 31 into the spray arm 3. The drive member 5 is used to drive the impeller assembly 4 to rotate.

[0046] The bottom of the guide seat 6 has a water inlet 601, and the top has an upper port corresponding to the water inlet 31 of the spray arm 3. The top of the guide seat 6 is provided with a plug-in portion 65 that can be plugged and connected with the water inlet 31 of the spray arm 3. The upper port is located at the top of the plug-in portion 65. An assembly gap A is formed between the plug-in portion 65 and the water inlet 31. The throat 321 of the flow channel 32 extends toward the water inlet 31 and extends to the inside of the assembly gap A.

[0047] The portion of the flow channel 32 extending from the throat 321 into the water inlet 31 is arranged near the top wall of the plug-in portion 65. The negative pressure area corresponds to the water inlet 31. This structure helps to better separate the negative pressure area from the assembly gap 321, so that the assembly gap 321 corresponds to the positive pressure area of the flow channel 31. A small amount of water is forced into the assembly gap 321 by the positive pressure, forming a water seal to prevent leakage and gas inhalation.

[0048] In the cleaning state, the pressure in the flow channel 32 of the spray arm 3 is higher than atmospheric pressure, and the water in the flow channel 32 of the spray arm 3 is pressed into the assembly gap 321 by this pressure, thereby forming a water seal at the water inlet 31. This structure helps to improve the sealing performance at the water inlet 31 and prevent liquid leakage and gas inhalation at the water inlet 31.

[0049] A collar 8 is provided at the top of the deflector seat 6. The bottom of the spray arm 3 is connected to this collar 8. The collar 8, the bottom of the spray arm 3, and the top of the deflector seat 6 collectively enclose a sealed cavity 80, which surrounds the outer periphery of the assembly gap 321. A mounting sleeve 35 is provided on the bottom wall of the spray arm 3. It extends downward from the edge of the water inlet 31 and passes through an assembly opening 82 on the collar 8. The plug-in portion 65 is inserted into this mounting sleeve 35. The lower edge of the mounting sleeve 35 is provided with a foot 351 that abuts against the lower wall of the collar 8, thereby removably securing the spray arm 3 to the collar 8. This structure facilitates assembly and further improves sealing. The top of the deflector seat 6 has a platform 66 surrounding the outer periphery of the plug-in portion 65. The collar 8 has a rim 81 extending downward from the outer edge of the platform 66. This rim 81, along with the inner bottom wall of the collar 8, the bottom of the mounting sleeve 35, the outer wall of the plug-in portion 65, and the collar 8, encloses a sealed cavity 80. The sealing cavity 80 is located below the negative pressure area, corresponding to the periphery of the negative pressure area, thereby wrapping the negative pressure area. During the cleaning process, the pressure in the flow channel 32 of the spray arm 3 is higher than the atmospheric pressure, so that a small amount of water will be pressed from the spray arm 3 into the assembly gap 321 to form a water seal. The above-mentioned sealing cavity 80 surrounds the water seal position, which is conducive to improving the stability of the water seal and further avoiding liquid leakage and gas inhalation.

[0050] A mounting sleeve 9 is placed around the outer perimeter of the deflector seat 5. The upper edge of this sleeve 9 abuts the outer edge of the platform 66 of the deflector seat 6, while the bottom edge of the skirt 81 abuts the upper edge of this sleeve 9. The mounting sleeve 9 is used to connect the deflector seat 6 to the dishwasher's drain plate. A protruding latch 811 is provided on the inner wall of the skirt 81. Correspondingly, a latch post 6211 extends upward and removably engages with the latch 811 on the platform 66 of the deflector seat 6.

[0051] The cleaning machine of this embodiment includes a box body 1, and the bottom of the box body 1 has a concave drainage area 11. The drainage area 11 has an arc-shaped second edge and a first edge connected to the first end of the second edge, a third edge connected to the second end of the second edge, and a fourth edge connected between the first edge and the third edge.

[0052] The top of the drain area 11 is covered with a drain plate, on which is mounted a slag basket 2 arranged near a first edge of the drain area 11. The top edge of the slag basket 2 is clamped on the drain plate, and the upper end of the slag basket 2 is exposed above the drain plate. The main body of the slag basket 2 is located in the drain area 11. The drain area 11 is provided with a water flow system for pumping water from the drain area 11 to above the drain plate.

[0053] like Figure 2As shown, a guide seat 6 is provided on the bottom wall of the drain area 11 near the second arc-shaped edge. The spray arm 3 is rotatably mounted on top of the guide seat 6 and above the drain plate. The impeller assembly 4 is located with its upper portion positioned in the spray arm 3 and its lower portion in the guide seat 6, and is used to draw water from the water inlet at the bottom of the guide seat 6 into the spray arm 3. The driving member 5 is a motor, mounted on the outer bottom wall of the housing 1. The motor shaft passes through the bottom wall of the housing 1 and is connected to the impeller assembly 4 to drive the impeller assembly 4 to rotate. The slag basket 2 is positioned near the first edge of the drain area 11, and a heating member 7 is mounted on the bottom of the drain area 11 near the third edge.

[0054] In this embodiment, if Figures 4 to 8 As shown, the guide seat 6 includes a guide sleeve 61 and a base 62. The base 62 is annular and is fixed to the inner bottom wall of the drain area 11 by screws. The guide sleeve 61 passes through the base 62 and is located above the base 62 and corresponding to the center of the base 62. The water inlet 601 of the guide seat 6 is formed between the lower ends of the base 62 and the guide sleeve 61.

[0055] like Figure 8 As shown, the side of the guide sleeve 61 is provided with a water inlet notch 611 extending upward from the bottom edge. A guide plate 612 is provided on the outer wall of the guide sleeve 61, extending outward from the edge of the water inlet notch 611. The top wall height of the guide plate 612 gradually decreases radially outward from the guide sleeve 61. The guide plate 612 includes a top plate 6121 extending outward from the top edge of the water inlet notch 611 and a side plate 6122 extending outward from the side wall edge of the water inlet notch 611. The top plate 6121 and the side plates 6122 together enclose a water absorption area 610. After the guide seat 6 is installed on the bottom wall of the dishwasher, the water absorption area 610 is a semi-enclosed area located at the bottom of the dishwasher. It can effectively lower the local water absorption level, increase the local water flow velocity, and regulate the water flow direction to a certain extent, thereby preventing air from being drawn into the spray arm, reducing washing water consumption, and improving water pumping stability.

[0056] The water absorption areas 610 are two, spaced apart and arranged around the periphery of the flow guide seat 6. The lower edge of the flow guide sleeve 61, located adjacent to the water absorption area 610, is lower than the outer edge of the top plate 6121. A smooth, curved flow guide structure 6123 is formed at the junction of the top plate 6121 and the flow guide sleeve 61 to minimize water energy loss. The lower edges of the side panels 6122 are supported on the base 62. The width of the water absorption area 610 gradually decreases along the direction of water flow, forming a fan-shaped structure that enhances water absorption.

[0057] The base 62 is provided with a vertically arranged support arm 621. The inner side of the upper portion of the support arm 621 is connected to the outer wall of the guide sleeve 61. The upper end of the support arm 621 is provided with a clamping post 6211 for mounting the spray arm 3. The clamping post 6211 is rotatably connected to the spray arm 3 via a clamping ring 8. The upper wall of the base 62 gradually slopes upward from the outside to the inside along the radial direction to form a diversion slope 622. This structure helps reduce water energy loss and improve water diversion effect.

[0058] like Figures 4 to 7 As shown, the outer periphery of the guide seat 6 of this embodiment is also provided with a guide plate 63 that extends radially outward and gradually decreases in height. The guide plate 63 partially covers the water absorption area 610, and the guide plate 63 continues to extend outward along the outer edge of the guide plate 612, extending to the outer wall of the slag collection basket 2. This structure can further increase the area and volume of the water flow guidance area and further lower the water absorption level, thereby preventing air from being sucked into the spray arm 3, reducing the amount of washing water, and improving the stability of the water pump. The height of at least a portion of the outer edge of the guide plate 63 is lower than the height of the lower edge of the guide sleeve 61. Both water absorption areas 610 are covered by the guide plate 63. In the circumferential direction of the guide seat 6, the coverage angle a of the guide plate 63 is 100° to 150°.

[0059] like Figure 7 As shown, the lengths of the guide plates 63 in the radial direction are different. The length d1 of the guide plate 63 corresponding to the first water absorption area 610 is greater than the length d2 of the guide plate 63 corresponding to the second water absorption area 610. Figure 6 As shown, the outer edge of the guide plate 63 corresponding to the first water absorption area 610 is slightly lower than the lower edge of the guide sleeve 61, while the outer edge of the guide plate 63 corresponding to the second water absorption area 610 is lower than the lower edge of the guide sleeve 61. The outer port of the first water absorption area 610 is located near the heating element 7, while the outer port of the second water absorption area 610 is located near the slag collection basket 2. Accordingly, the guide plate 63 corresponding to the first water absorption area 610 extends toward the vicinity of the heating element 7, while the guide plate 63 corresponding to the second water absorption area 610 extends toward the side of the slag collection basket 2.

[0060] The above structure makes the edge height of the guide plate 63 corresponding to the first water absorption area 610 higher than the edge height of the guide plate 63 corresponding to the second water absorption area 610, which is convenient for controlling the water absorption height of different circumferential areas according to needs. In this embodiment, the water absorption height near the heating element 7 is moderately reduced, and the water absorption height near the slag collecting basket 2 is controlled to the lowest; at the same time, the water flow rate in different radial areas is adjusted, and the water absorption speed near the heating element 7 is moderately increased to reduce scale accumulation, and the water absorption speed of the slag collecting basket 2 accessories is adjusted to the maximum, thereby improving the slag collection effect.

[0061] In this embodiment, the edge of the drain plate 63 is provided with a vertically arranged side panel 631. The side panel 631 and the drain plate 63 together enclose a drainage area 630. The drainage area 630 separates the area where the water level of the water absorption is reduced from the area where the water level of the water absorption is not reduced. This facilitates the placement of the drain seat 6 according to the position of the slag basket 2 when installing the drain seat 6. This is because: during the dishwashing process, most of the water that falls back will enter the drain area 11 through the slag basket 2. The water that enters the drain area 11 will quickly flow back through the drain seat 6 to the spray arm 3 through the drainage area 630 near the slag basket 2 and with a reduced water level, which is beneficial to improving the return water efficiency and preventing the entry of bubbles. At the same time, under the action of the water diversion area 630, the water flow velocity at the slag basket 2 is increased, which has a certain flushing effect on the side wall of the slag basket 2, which is beneficial to improving the slag collection effect and automatically cleaning the slag basket.

[0062] In this embodiment, an arc-shaped guide member 64 is provided at the top of the guide sleeve 61, which is connected to the upper end of the guide sleeve 61 and has an inner diameter that gradually increases. The arc-shaped guide member 64 is located on the top wall of the plug-in portion 65 and is integrally formed with the guide plate 63. The clamping column 6211 at the top of the support arm 621 is arranged through the platform 66.

[0063] In the present specification and claims, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used to describe various exemplary structural parts and components of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Because the embodiments disclosed herein can be arranged in various orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A water flow system, comprising a spray arm (3) and a guide seat (6), wherein a water inlet (31) is opened on the bottom wall of the spray arm (3), a flow channel (32) connected to the water inlet (31) is provided in the spray arm (3), a water inlet (601) is provided at the lower part and / or the bottom of the guide seat (6), and an upper port connected to the water inlet (31) of the spray arm (3) at the top, characterized in that: The top of the guide seat (6) is provided with a plug-in portion (65) that can be plugged and connected to the water inlet (31) of the spray arm (3); the upper port is located at the top of the plug-in portion (65); an assembly gap (A) is formed between the plug-in portion (65) and the water inlet (31); the throat (321) of the flow channel (32) extends toward the water inlet (31) and extends to a position adjacent to the assembly gap (A); The guide seat (6) comprises a guide sleeve (61) that passes through from top to bottom, a water inlet notch (611) extending upward from the bottom edge is formed on the side of the guide sleeve (61), a guide plate (612) extending outward from the edge of the water inlet notch (611) is provided on the outer wall of the guide sleeve (61), and the top wall height of the guide plate (612) gradually decreases radially outward from the guide sleeve (61); the guide plate (612) comprises a top plate (6121) extending outward from the top edge of the water inlet notch (611) and a side plate (6122) extending outward from the side wall edge of the water inlet notch (611), and the top plate (6121) and the side plate (6122) together enclose a water absorption area (610); There are two water absorption areas (610) arranged at intervals on the outer periphery of the guide seat (6). The outer periphery of the guide seat (6) is also provided with a guide plate (63) extending radially outward and gradually decreasing in height. The edge height of the guide plate (63) corresponding to the first water absorption area is higher than the edge height of the guide plate (63) corresponding to the second water absorption area, thereby controlling the water absorption height of different areas in the circumferential direction.

2. The water flow system according to claim 1, characterized in that: The throat (321) of the flow channel (32) extends into the water inlet (31) and is located inside the assembly gap (A).

3. The water flow system according to claim 1, characterized in that: The tip of the throat (321) of the flow channel (32) is arranged beyond the assembly gap (A) and corresponding to the top of the plug-in portion (65).

4. The water flow system according to claim 1, characterized in that: In the cleaning state, the pressure in the flow channel (32) of the spray arm (3) is higher than atmospheric pressure, and the water in the flow channel (32) of the spray arm (3) is pressed into the assembly gap (A) by the pressure, thereby forming a water seal for the water inlet (31).

5. The water flow system according to claim 1, characterized in that: A clamping ring (8) is provided on the top of the guide seat (6), and the bottom of the spray arm (3) is connected to the clamping ring (8). In addition, the clamping ring (8), the bottom of the spray arm (3), and the top of the guide seat (6) together enclose a sealed cavity (80), and the sealed cavity (80) surrounds the outer periphery of the assembly gap (A).

6. The water flow system according to claim 5, characterized in that: The bottom wall of the spray arm (3) is provided with an assembly sleeve (35) extending downward around the edge of the water inlet (31) and passing through the assembly opening (82) on the clamping ring (8); the plug-in portion (65) is inserted into the assembly sleeve (35); and a clamping foot (351) is provided at the lower edge of the assembly sleeve (35) which can abut against the lower wall surface of the clamping ring (8) to detachably restrain the spray arm (3) on the clamping ring (8).

7. The water flow system according to claim 6, characterized in that: The top of the guide seat (6) has a platform (66) surrounding the outer periphery of the plug-in portion (65), and the clamping ring (8) has a peripheral edge (81) extending downward from the outer edge of the platform (66). The peripheral edge (81) and the inner bottom wall of the clamping ring (8), the bottom of the assembly sleeve (35), the outer wall of the plug-in portion (65), and the platform (66) together enclose the sealing cavity (80).

8. The water flow system according to any one of claims 1 to 7, characterized in that: There is at least one water absorption area (610), and the height of the lower edge of the guide sleeve (61) located next to the water absorption area (610) is lower than the height of the outer edge of the top plate (6121).

9. The water flow system according to any one of claims 1 to 7, characterized in that: The connection between the top plate (6121) and the guide sleeve (61) forms a smoothly transitioned arc-shaped guide structure (6123).

10. The water flow system according to any one of claims 1 to 7, characterized in that: The width of the water absorption area (610) gradually decreases along the water flow direction to form a fan-shaped structure.

11. The water flow system according to any one of claims 1 to 7, characterized in that: The guide seat (6) further comprises a base (62) spaced apart and arranged below the guide sleeve (61), the water inlet (601) being formed between the base (62) and the lower end of the guide sleeve (61), and the lower edge of the side plate (6122) is supported on the base (62).

12. The water flow system according to claim 11, characterized in that: The base (62) is annular and arranged corresponding to the periphery of the guide sleeve (61). A vertically arranged support arm (621) is provided on the base (62). The inner side of the upper part of the support arm (621) is connected to the outer wall of the guide sleeve (61). The upper end of the support arm (621) is provided with a buckle (6211) for installing a spray piece.

13. The water flow system according to claim 11, characterized in that: The upper wall surface of the base (62) gradually tilts upward from the outside to the inside in the radial direction to form a flow guide slope (622).

14. The water flow system according to any one of claims 1 to 7, characterized in that: At least a portion of the flow guide plate (63) covers the water absorption area (610), and the flow guide plate (63) continues to extend outward along the outer edge of the guide plate (612).

15. The water flow system according to claim 14, characterized in that: The height of at least a portion of the outer edge of the guide plate (63) is lower than the height of the lower edge of the guide sleeve (61).

16. The water flow system according to claim 14, characterized in that: Both of the water absorption areas (610) are covered by the guide plate (63).

17. The water flow system according to claim 16, characterized in that: In the circumferential direction of the guide seat (6), the covering angle (a) of the guide plate (63) is 100° to 150°.

18. The water flow system according to claim 16, characterized in that: The guide plates (63) have different lengths in the radial direction, and the length of the guide plate (63) corresponding to the first water absorption area (610) is greater than the length of the guide plate (63) corresponding to the second water absorption area (610).

19. The water flow system according to claim 18, characterized in that: The height of the outer edge of the guide plate (63) corresponding to the first water absorption area (610) is not higher than the height of the lower edge of the guide sleeve (61), and the height of the outer edge of the guide plate (63) corresponding to the second water absorption area (610) is lower than the height of the lower edge of the guide sleeve (61).

20. The water flow system according to claim 14, characterized in that: The edge of the guide plate (63) is provided with a vertically arranged side panel (631), and the side panel (631) and the guide plate (63) together enclose a guide area (630).

21. The water flow system according to claim 14, characterized in that: The top of the guide sleeve (61) is provided with an arc-shaped guide piece (64) which is connected to the upper end of the guide sleeve (61) and has an inner diameter that gradually increases. The arc-shaped guide piece (64) is integrally formed with the guide plate (63).

22. The water flow system according to any one of claims 1 to 7, wherein: It also includes an impeller assembly (4) and a driving member (5), wherein the impeller assembly (4) is arranged in the guide seat (6) and the spray arm (3) and is used to draw water from the water inlet (601) into the spray arm (3), and the driving member (5) is arranged below the impeller assembly and is used to drive the impeller assembly (4) to rotate.

23. A cleaning machine using the water flow system according to any one of claims 1 to 22, comprising a housing (1), the bottom of the housing (1) having a concave drain area (11), the top of the drain area (11) being covered with a drain plate, a slag collecting basket (2) being mounted on the drain plate and arranged near a first edge of the drain area (11), the water flow system being used to pump water from the drain area (11) to above the drain plate, characterized in that: The guide seat (6) is installed in the drainage area (11) and arranged close to the second edge of the drainage area (11), and the guide plate (63) extends toward the slag collecting basket (2).

24. A cleaning machine using the water flow system according to any one of claims 14 to 22, comprising a housing (1), the bottom of the housing (1) having a concave drain area (11), the top of the drain area (11) being covered with a drain plate, a slag collecting basket (2) being mounted on the drain plate and arranged near a first edge of the drain area (11), a water flow system for pumping water from the drain area (11) to above the drain plate being provided in the drain area (11), and characterized in that: The guide seat (6) is installed in the middle of the drainage area (11) and arranged close to the second edge of the drainage area (11), and the guide plate (63) extends toward the slag collecting basket (2).

25. A cleaning machine using the water flow system according to any one of claims 1 to 22, comprising a housing (1), the bottom of the housing (1) having a concave drain area (11), the top of the drain area (11) being covered with a drain plate, a slag collecting basket (2) being mounted on the drain plate and arranged near a first edge of the drain area (11), a water flow system for pumping water from the drain area (11) to above the drain plate being provided in the drain area (11), and characterized in that: The guide seat (6) is installed in the middle of the drainage area (11) and arranged close to the second edge of the drainage area (11), and the guide plate (63) extends toward the slag collecting basket (2); A heating element (7) arranged near the third edge is installed at the bottom of the drainage area (11); the outer port of the first water absorption area (610) is arranged near the heating element (7); the outer port of the second water absorption area (610) is arranged near the slag collecting basket (2); accordingly, the guide plate (63) corresponding to the first water absorption area (610) extends toward the vicinity of the heating element (7), and the guide plate (63) corresponding to the second water absorption area (610) extends toward the side of the slag collecting basket (2).

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