CN115245295A - Water flow system and cleaning machine - Google Patents

Abstract

The invention relates to a water flow system and a cleaning machine, wherein the water flow system comprises a spray arm and a flow guide seat, a water inlet is formed in the bottom wall of the spray arm, a flow passage communicated with the water inlet is formed in the spray arm, a water inlet is formed in the lower part and/or the bottom of the flow guide seat, an upper port correspondingly connected with the water inlet of the spray arm is formed in the top of the flow guide seat, an insertion part capable of being inserted and connected with the water inlet of the spray arm is formed in the top of the flow guide seat, and the upper port is located at the top of the insertion part. The flow guide seat is inserted and connected with the water inlet of the spray arm, an assembly gap is formed between the insertion part and the water inlet, and the throat of the flow channel extends to the water inlet and extends to the assembly gap, so that in the cleaning process, the negative pressure area of the spray arm is positioned on the inner side of the water inlet, and other parts of the flow channel of the spray arm are positive pressure which can press a small amount of water into the assembly gap, thereby carrying out water sealing on the water inlet, avoiding liquid leakage or gas suction at the water inlet, and further improving the water flow jet lift and the cleaning effect.

Description

Water flow system and cleaning machine

Technical Field

The invention relates to the technical field of dish washing machines, in particular to a water flow system and a washing machine.

Background

In dishwashers employing open flow systems, the spray arm is typically snap-fitted to the deflector base and secured to the bottom of the sink.

For example, chinese patent application No. CN202011063575.X (publication No. CN 112244711A) discloses a structure, which includes a tank, a spray arm, a water drawing impeller and a motor, wherein the spray arm is disposed in the tank, a water inlet is formed in a bottom wall of the spray arm, a water spraying hole is formed in a top wall of the spray arm, the water drawing impeller is rotatably disposed in the tank and used for pumping water from a bottom of the tank into the spray arm, the motor is disposed at a bottom of the tank and used for driving the water drawing impeller to rotate, a flow guiding seat is disposed on the bottom wall of the tank, the spray arm is rotatably supported at an upper end of the flow guiding seat, a flow guiding sleeve extending downward from an edge of the water inlet of the spray arm is disposed in the flow guiding seat, a lower portion of the water drawing impeller is disposed in the flow guiding sleeve, and an upper portion of the water drawing impeller penetrates through the water inlet and is disposed in the spray arm.

In the open type water flow system of the dishwasher, the diversion seat is used as a water absorption part to form an important part in the water flow system, and the structure of the diversion seat and the connecting structure between the diversion seat and the spray arm directly influence the energy efficiency and water efficiency of the dishwasher. In the existing open type water flow system, the water inlet of the bottom wall of the spray arm is restrained at the top of the flow guide seat through a buckle, under the cleaning state, the cleaning liquid level can not cover the top of the flow guide seat, namely, the connection part of the spray arm, the buckle and the flow guide seat is directly contacted with air, a negative pressure area can be formed in the inner cavity of the spray arm close to the water inlet, as shown in figure 1, a negative pressure area can be formed at the position A, and in the rotation process of the spray arm, the spray arm can be lifted up to a certain gap, the gap has a liquid leakage risk, and external air can be sucked into the negative pressure area along the gap and further enters the spray arm along with water flow, so that the power of a water pump is unstable, and the lift and the cleaning effect of the water flow sprayed by the spray arm are seriously influenced; if the liquid level is kept high, the washing water consumption is high, and the use cost is increased.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a water flow system which improves the sealing performance, thereby preventing liquid leakage and gas from being sucked into the spray arm, and further improving the water flow spraying lift and the cleaning effect.

The second technical problem to be solved by the present invention is to provide a cleaning machine using the above water flow system, aiming at the current state of the prior art.

The technical scheme adopted by the invention for solving at least one technical problem is as follows:

a water flow system comprises a spray arm and a flow guide seat, wherein a water inlet is formed in the bottom wall of the spray arm, a flow channel communicated with the water inlet is formed in the spray arm, a water inlet is formed in the lower portion and/or the bottom of the flow guide seat, an upper port correspondingly connected with the water inlet of the spray arm is formed in the top of the flow guide seat, an insertion part capable of being inserted into and connected with the water inlet of the spray arm is arranged at the top of the flow guide seat, the upper port is located at the top of the insertion part, an assembly gap is formed between the insertion part and the water inlet, and the throat of the flow channel extends towards the water inlet and is adjacent to the position of the assembly gap.

Preferably, the flow passage throat extends into the water inlet and is located inside the assembly gap. The tip of the flow passage throat is arranged across the assembly gap and corresponds to the top of the insertion part. The negative pressure region corresponds to the water inlet, and the structure is favorable for better separating the negative pressure region from the assembly gap, so that the assembly gap corresponds to the positive pressure region of the flow channel, a small amount of water is pressed into the assembly gap by means of positive pressure to form a water seal, and leakage and gas suction are avoided.

In the invention, in the cleaning state, the pressure in the spray arm flow passage is higher than the atmospheric pressure, and the water in the spray arm flow passage is pressed into the assembly gap by the pressure so as to form water seal for the water inlet. The structure is beneficial to improving the sealing performance of the water inlet, and liquid leakage and gas suction at the water inlet are avoided.

As an improvement, the top of the guide seat is provided with a clamping ring, the bottom of the spray arm is connected with the clamping ring, and the clamping ring, the bottom of the spray arm and the top of the guide seat jointly enclose a sealing cavity which surrounds the periphery of the assembly gap. Preferably, the top of the flow guide seat is provided with a platform surrounding the periphery of the insertion part, the clamping ring is provided with a surrounding edge extending downwards corresponding to the outer edge of the platform, and the surrounding edge, the inner bottom wall of the clamping ring, the bottom of the assembly set, the outer wall of the insertion part and the platform jointly form the sealing cavity. The sealing cavity is located below the negative pressure area and corresponds to the periphery of the negative pressure area, so that the negative pressure area is wrapped, in the cleaning process, the pressure in the flow channel of the spray arm is higher than the atmospheric pressure, a small part of water is pressed into the assembly gap from the spray arm to form a water seal, the sealing cavity surrounds the water seal, the stability of the water seal is improved, and liquid leakage and gas suction are further avoided.

Preferably, the bottom wall of the spray arm is provided with a mounting sleeve which extends downwards around the edge of the water inlet and is arranged through a mounting opening on the clamping ring, the inserting part is inserted into the mounting sleeve, and the lower edge of the mounting sleeve is provided with a clamping foot which can be abutted against the lower wall surface of the clamping ring so as to detachably restrain the spray arm on the clamping ring. The structure is convenient to assemble and is beneficial to further improving the sealing property.

Preferably, the periphery of the diversion seat is sleeved with an installation sleeve, the upper edge of the installation sleeve abuts against the outer edge of the diversion seat platform, and the bottom edge of the surrounding edge abuts against the upper edge of the installation sleeve. The mounting sleeve is used for connecting the diversion seat with a draining plate of the dishwasher.

Preferably, the inner wall of the surrounding edge is convexly provided with a clamping block, and correspondingly, the platform of the flow guide seat is provided with a clamping column which extends upwards and is detachably clamped with the clamping block.

In the invention, the flow guide seat comprises a flow guide sleeve which is communicated up and down, a water inlet communicated with a lower port of the flow guide sleeve is arranged on the side part of the flow guide seat, a water inlet notch extending upwards from the bottom edge is formed in the side part of the flow guide sleeve, a flow guide plate extending outwards from the edge of the water inlet notch is arranged on the outer side wall of the flow guide sleeve, and the height of the top wall of the flow guide plate is gradually reduced outwards along the radial direction of the flow guide sleeve. In the washing process of the existing dish washing machine, because the water suction port of the flow guide seat is higher, when the actual liquid level is lower, the pump can possibly suck air into the flow channel in the running process; the spray arm is generally positioned in the central part of the washing cavity, the slag collecting basket is arranged on the filter plate beside the flow guide seat, and in the process of filtering and collecting slag, as the water suction port is positioned on the flow guide seat, the water flow speed near the flow guide seat is higher than that at the slag collecting basket, the slag collecting effect of the eccentrically arranged slag collecting basket is poor. In the structure, the water inlet notch is favorable for enabling water to flow back quickly, and the guide plate is favorable for guiding local water flow while reducing the water absorption level, so that gas suction is avoided, the water consumption for washing is reduced, and the water pumping stability is improved; when the guide plate is close to the slag collecting basket, the flow velocity of water at the slag collecting basket is improved, so that the slag collecting effect is improved.

Preferably, the guide plate comprises a top plate extending outwards from the top edge of the water inlet notch and a side plate extending outwards from the side wall edge of the water inlet notch, and the top plate and the side plate jointly enclose a water absorption area. After installing the water conservancy diversion seat on the diapire of dish washer, the regional semi-surrounding region for locating the dish washer bottom of absorbing water can effectively reduce the local water level that absorbs water, improve local water velocity to regular rivers flow direction to a certain extent, thereby avoid during the air suction spray arm, reduce the washing water consumption, improve pump water stability.

Preferably, the water absorption area is at least one, and the height of the lower edge of the flow guide sleeve beside the water absorption area is lower than that of the outer edge of the top plate.

Preferably, an arc-shaped flow guide structure with smooth transition is formed at the joint of the top plate and the flow guide sleeve so as to reduce the energy loss of water flow.

Preferably, the width of the water absorption area is gradually reduced along the water flow direction to form a fan-shaped structure, which is beneficial to improving the water absorption effect.

In order to facilitate assembly, the flow guide seat further comprises bases arranged below the flow guide sleeve at intervals, the water inlet is formed between the bases and the lower end of the flow guide sleeve, and the lower edge of the side plate is supported on the bases.

Preferably, the base is annular and corresponds the periphery of water conservancy diversion cover and arranges, be provided with vertical arrangement's support arm on the base, the inboard on this support arm upper portion is connected with the water conservancy diversion cover outer wall, the upper end of support arm is provided with the buckle that is used for installing the piece that sprays, and the buckle is used for installing the spray arm.

Preferably, the upper wall surface of the base gradually inclines upwards from outside to inside along the radial direction to form a flow guiding inclined surface. The structure is favorable for reducing the energy loss of water flow and improving the water guide effect.

As the improvement, the periphery of water conservancy diversion seat still is provided with along radial outwardly extending and highly reduce gradually's drainage plate, and this drainage plate part at least will the regional cover that absorbs water, just the drainage plate continues to extend along the outward flange of guide plate outwards. The structure can further increase the area and the volume of a guide area of water flow and further reduce the water absorption level, thereby avoiding air from being sucked into the spray arm, reducing the water consumption for washing and improving the stability of water pumping.

Preferably, the height of the outer edge of at least part of the flow guide plate is lower than that of the lower edge of the flow guide sleeve. The water absorption areas are two and are arranged at the periphery of the flow guide seat at intervals, and the two water absorption areas are covered by the drainage plate. In the circumferential direction of the flow guide seat, the covering angle of the flow guide plate is 100-150 degrees.

Preferably, the length of the drainage plate in the radial direction is different, and the length of the drainage plate corresponding to the first water absorption area is larger than that of the drainage plate corresponding to the second water absorption area. Preferably, the height of the outer edge of the flow guide plate corresponding to the first water absorption area is not higher than that of the lower edge of the flow guide sleeve, and the height of the outer edge of the flow guide plate corresponding to the second water absorption area is lower than that of the lower edge of the flow guide sleeve.

Above-mentioned structure makes the drainage plate edge height that corresponds the first region that absorbs water be higher than the drainage plate edge height that corresponds the second region that absorbs water, is convenient for control the height that absorbs water of different regions in week as required, simultaneously, adjusts the rivers velocity of flow of different regions in the radial direction, is convenient for improve the collection sediment effect.

Preferably, the edge of the drainage plate is provided with a side coaming plate which is vertically arranged, and the side coaming plate and the drainage plate jointly enclose a drainage area. This drainage region will absorb water the regional area that the water level reduces and the region that the water level does not reduce separate, be convenient for when installation water conservancy diversion seat, according to the position of collection sediment basket, place the position of water conservancy diversion seat because: the in-process washes the dishes, the water that most fall back can get into in the waterlogging caused by excessive rainfall region through album sediment basket, the regional water that gets into the waterlogging caused by excessive rainfall flows back to the spray arm through being close to the drainage region that collection sediment basket and water level reduce rapidly through the water conservancy diversion seat, be favorable to improving return water efficiency, avoid the bubble to get into, and simultaneously, under the effect in diversion region, the velocity of water increase of collection sediment basket department has certain scouring action to collection sediment basket lateral wall, be favorable to improving collection sediment effect, clean the sediment basket automatically.

In the invention, the top of the flow guide sleeve is provided with an arc-shaped flow guide part which is mutually connected with the upper end of the flow guide sleeve and has gradually increased inner diameter, and the clamping column at the top of the support arm penetrates through the platform to be arranged.

The water flow system also comprises an impeller assembly and a driving piece, wherein the spray arm is arranged at the top of the flow guide seat, the impeller assembly is used for sucking water into the spray arm from the water inlet, and the driving piece is used for driving the impeller assembly to rotate.

The cleaning machine comprises a box body, wherein the bottom of the box body is provided with a concave draining area, the top of the draining area is covered with a draining plate, a slag collecting basket which is arranged close to a first edge of the draining area is installed on the draining plate, the water flow system is used for pumping water in the draining area to the upper side of the draining plate, a guide seat is installed in the draining area and is arranged close to a second edge of the draining area, and the guide plate extends towards the slag collecting basket.

The cleaning machine comprises a box body, wherein the bottom of the box body is provided with a concave draining area, the top of the draining area is covered with a draining plate, a slag collecting basket arranged close to a first edge of the draining area is installed on the draining plate, a water flow system for pumping water in the draining area to the upper side of the draining plate is arranged in the draining area, a guide seat is installed in the draining area and arranged close to a second edge of the draining area, and a drainage plate extends towards the slag collecting basket.

The washing machine with the water flow system comprises a box body, wherein a concave draining area is formed in the bottom of the box body, a draining plate covers the top of the draining area, a slag collecting basket arranged close to a first edge of the draining area is installed on the draining plate, the draining area is internally provided with the water flow system for pumping water in the draining area to the position above the draining plate, a flow guide seat is installed in the draining area and arranged close to a second edge of the draining area, and the flow guide plate extends towards the slag collecting basket; the regional bottom of waterlogging caused by excessive rainfall is installed and is close to the heating member that the third edge was arranged, the regional outer port that absorbs water of first is close to the heating member and arranges, the regional outer port that absorbs water of second is close to an album sediment basket and arranges, and is corresponding, and the drainage plate that corresponds the regional drainage plate that absorbs water of first extends to near the heating member, and the drainage plate that corresponds the regional water of second extends to an album sediment basket lateral part. Compared with the prior art, the invention has the advantages that: the flow guide seat is connected with the water inlet of the spray arm in an inserting and matching mode, an assembly gap is formed between the inserting portion and the water inlet, and the throat of the flow channel extends towards the water inlet and extends to the inner side of the assembly gap.

Drawings

FIG. 1 is a schematic view of a cleaning machine according to an embodiment of the present invention (hidden draining board);

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic view of the hidden spray arm and impeller assembly of FIG. 1;

FIG. 4 is a schematic view of a flow guide seat according to an embodiment of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 4 from another angle;

FIG. 6 is a side view of FIG. 4;

FIG. 7 is a top view of FIG. 4;

FIG. 8 is a partial structural view of a deflector base according to an embodiment of the present invention (not including an integrated structure formed by an arc-shaped deflector and a flow guide plate);

FIG. 9 is a schematic view of a portion of the water flow system of an embodiment of the present invention (partially enclosed housing with spray arms);

fig. 10 is a cross-sectional view of fig. 9.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The water flow system of the embodiment is mainly applied to a washing machine, and the washing machine is used for washing dishes, fruits and vegetables.

As shown in fig. 2, 9 and 10, the water flow system includes a spray arm 3, a diversion seat 6, an impeller assembly 4 and a driving member 5, the spray arm 3 is disposed on the top of the diversion seat 6, a water inlet 31 is opened at the central portion of the bottom wall of the spray arm 3, a flow channel 32 communicated with the water inlet 31 is provided in the spray arm 3, a plurality of spray holes 33 communicated with the flow channel 32 are opened on the top wall of the spray arm 3, a water collection cavity 34 is formed at the central portion of the spray arm 3 corresponding to the water inlet 31, a throat 321 of the flow channel 32 corresponds to the edge of the water collection cavity 34, and a negative pressure region is formed at the water collection cavity 34 during the cleaning process. The impeller assembly 4 is used for sucking water into the spray arm 3 from the water inlet 31, and the driving member 5 is used for driving the impeller assembly 4 to rotate.

The bottom of the guide seat 6 is provided with a water inlet 601, the top of the guide seat 6 is provided with an upper port correspondingly connected with the water inlet 31 of the spray arm 3, the top of the guide seat 6 is provided with an insertion part 65 capable of being inserted and connected with the water inlet 31 of the spray arm 3, the upper port is positioned at the top of the insertion part 65, an assembly gap A is formed between the insertion part 65 and the water inlet 31, and the throat 321 of the flow channel 32 extends towards the water inlet 31 and extends to the inner side of the assembly gap A.

The portion of the flow passage 32 extending into the water inlet 31 from the throat 321 is disposed near the top wall of the socket 65. The negative pressure region corresponds to the water inlet 31, and the structure is favorable for better separating the negative pressure region from the assembly gap 321, so that the assembly gap 321 corresponds to the positive pressure region of the flow channel 31, a small amount of water is pressed into the assembly gap 321 by means of positive pressure, a water seal is formed, and leakage and gas suction are avoided.

In the cleaning state, the pressure in the flow passage 32 of the spray arm 3 is higher than the atmospheric pressure, and the water in the flow passage 32 of the spray arm 3 is pressed into the fitting gap 321 by the pressure to form a water seal with the water inlet 31. This structure is favorable to improving the leakproofness of water inlet 31 department, avoids water inlet 31 department weeping and gas suction.

The top of the guide seat 6 is provided with a clamping ring 8, the bottom of the spray arm 3 is connected with the clamping ring 8, and the clamping ring 8, the bottom of the spray arm 3 and the top of the guide seat 6 jointly enclose a sealing cavity 80, and the sealing cavity 80 surrounds the periphery of the assembly gap 321. The bottom wall of the spray arm 3 is provided with a mounting sleeve 35 extending downwards around the edge of the water inlet 31 and arranged through a mounting opening 82 on the collar 8, the plug-in part 65 is inserted into the mounting sleeve 35, and the lower edge of the mounting sleeve 35 is provided with a clamping foot 351 capable of abutting against the lower wall surface of the collar 8 so as to detachably restrain the spray arm 3 on the collar 8. The structure is convenient to assemble and is beneficial to further improving the sealing property. The top of the deflector seat 6 has a platform 66 surrounding the periphery of the insertion portion 65, and the collar 8 has a peripheral edge 81 extending downward corresponding to the outer edge of the platform 66, and the peripheral edge 81, together with the inner bottom wall of the collar 8, the bottom of the mounting sleeve 35, the outer wall of the insertion portion 65 and the platform 66, forms a sealed cavity 80. The sealing cavity 80 is located below the negative pressure area and corresponds to the periphery of the negative pressure area, so that the negative pressure area is wrapped, in 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 is pressed into the assembly gap 321 from the spray arm 3 to form a water seal, the sealing cavity 80 surrounds the water seal, the stability of the water seal is improved, and leakage and gas suction are further avoided.

The periphery of water conservancy diversion seat 5 has set the installation cover 9, and the top edge of this installation cover 9 offsets with the outward flange of water conservancy diversion seat 6 platform 66, and the bottom edge of surrounding edge 81 offsets with the top edge of this installation cover 9. The mounting sleeve 9 is used for connecting the deflector 6 with a draining plate of a dishwasher. The inner wall of the surrounding edge 81 is convexly provided with a fixture block 811, and correspondingly, the platform 66 of the guide seat 6 is provided with a fixture column 6211 which extends upwards and is detachably clamped with the fixture block 811.

The cleaning machine of the embodiment comprises a box body 1, wherein a concave draining area 11 is arranged at the bottom of the box body 1, and the draining area 11 is provided with a circular arc-shaped second edge, 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.

The top of the draining area 11 is covered with a draining plate, the draining plate is provided with a slag collecting basket 2 which is arranged close to the first edge of the draining area 11, the top edge of the slag collecting basket 2 is clamped on the draining plate, the upper port of the slag collecting basket 2 is exposed out of the upper side of the draining plate, and the main body of the slag collecting basket 2 is positioned in the draining area 11. A water flow system for pumping water from the draining area 11 to above the draining board is arranged in the draining area 11.

As shown in fig. 2, a diversion seat 6 is disposed at a second edge close to the circular arc on the bottom wall of the draining area 11, the spray arm 3 is rotatably disposed at the top of the diversion seat 6 and above the draining plate, the upper part of the impeller assembly 4 is disposed in the spray arm 3, the lower part of the impeller assembly 4 is disposed in the diversion seat 6, and is used for sucking water into the spray arm 3 from a water inlet at the bottom of the diversion seat 6, the driving member 5 is a motor and is disposed on the outer bottom wall of the box body 1, and a motor shaft penetrates through the impeller assembly 4 on the bottom wall of the box body 1 to be connected so as to drive the impeller assembly 4 to rotate. The slag collection basket 2 is arranged close to a first edge of the draining area 11, and the bottom of the draining area 11 is provided with a heating element 7 arranged close to a third edge.

In this embodiment, as shown in fig. 4 to 8, the diversion seat 6 includes a diversion sleeve 61 and a base 62, the base 62 is annular and fixed on the inner bottom wall of the draining area 11 by screws, the diversion sleeve 61 penetrates up and down, and the diversion sleeve 61 is located above the base 62 and arranged corresponding to the central portion of the base 62. A water inlet 601 of the guide base 6 is formed between the base 62 and the lower end of the guide sleeve 61.

As shown in fig. 8, a water inlet notch 611 extending upward from the bottom edge is formed in the side portion of the guide sleeve 61, a guide plate 612 extending outward from the edge of the water inlet notch 611 is disposed on the outer side wall of the guide sleeve 61, and the height of the top wall of the guide plate 612 gradually decreases along the radial direction of the guide sleeve 61. The baffle 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, and the top plate 6121 and the side plate 6122 jointly enclose the water absorption area 610. After installing water conservancy diversion seat 6 on the diapire of dish washer, the regional 610 area of partly surrounding of dish washer bottom for locating of absorbing water can effectively reduce the local water level that absorbs water, improve local water velocity to regular rivers flow direction to a certain extent, thereby avoid during the air suction spray arm, reduce the washing water consumption, improve pump water stability.

The two water absorption areas 610 are arranged at the periphery of the flow guide seat 6 at intervals, and the lower edge of the flow guide sleeve 61 beside the water absorption areas 610 is lower than the outer edge of the top plate 6121. The joint of the top plate 6121 and the flow guide sleeve 61 forms an arc-shaped flow guide structure 6123 with smooth transition so as to reduce the energy loss of water flow. The lower edges of the side plates 6122 are supported on the base 62. The width of the water absorption region 610 is gradually reduced in the water flow direction to form a fan-shaped structure, which is advantageous for improving the water absorption effect.

The base 62 is provided with a vertically arranged supporting arm 621, the inner side of the upper part of the supporting arm 621 is connected with the outer wall of the diversion sleeve 61, the upper end of the supporting arm 621 is provided with a clamping column 6211 for installing the spray arm 3, and the clamping column 6211 is rotatably connected with the spray arm 3 through a clamping ring 8. The upper wall surface of the base 62 is gradually inclined upwards from outside to inside along the radial direction to form a diversion inclined surface 622, which is beneficial to reducing the energy loss of water flow and improving the water diversion effect.

As shown in fig. 4 to 7, the periphery of the deflector seat 6 of this embodiment is further provided with a flow guide plate 63 extending radially outward and gradually decreasing in height, a part 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 deflector 612 to the outer side wall of the slag collecting basket 2. The structure can further increase the area and the volume of a guide area for water flow and further reduce the water absorption level, thereby avoiding air from being sucked into the spray arm 3, reducing the water consumption for washing and improving the stability of water pumping. At least part of the outer edge of the flow guide plate 63 is lower than the lower edge of the flow guide sleeve 61. Both water absorbing areas 610 are covered by the flow guide plate 63. In the circumferential direction of the guide base 6, the covering angle a of the drainage plate 63 is 100-150 degrees.

As shown in FIG. 7, the length of the flow guide plates 63 in the radial direction is different, and the length d1 of the flow guide plate 63 corresponding to the first water-absorbing region 610 is greater than the length d2 of the flow guide plate 63 corresponding to the second water-absorbing region 610. As shown in fig. 6, the outer edges of the flow guide plates 63 corresponding to the first water absorption regions 610 have a height slightly lower than the lower edge of the flow guide sleeve 61, and the outer edges of the flow guide plates 63 corresponding to the second water absorption regions 610 have a height lower than the lower edge of the flow guide sleeve 61. The outer port of the first water absorption area 610 is close to the heating element 7 to be arranged, the outer port of the second water absorption area 610 is close to the slag collecting basket 2 to be arranged, correspondingly, the drainage plate 63 corresponding to the first water absorption area 610 extends to the position close to the heating element 7, and the drainage plate 63 corresponding to the second water absorption area 610 extends to the side of the slag collecting basket 2.

The structure enables the edge height of the drainage plate 63 corresponding to the first water absorption area 610 to be higher than that of the drainage plate 63 corresponding to the second water absorption area 610, so that the water absorption heights of different areas in the circumferential direction can be controlled conveniently as required, in the embodiment, the water absorption height near the heating element 7 is reduced appropriately, and the water absorption height near the slag collection basket 2 is controlled to be the lowest; simultaneously, adjust the rivers velocity of flow of different regions in the footpath, with the increase of the absorbing water speed moderate degree near heating member 7 to reduce the incrustation scale accumulation, adjust the absorbing water speed of 2 annexes of collection sediment basket for the biggest, thereby improve collection sediment effect.

The edge of the flow guide plate 63 of this embodiment is provided with a vertically arranged side wall plate 631, and the side wall 631 and the flow guide plate 63 together enclose a flow guide area 630. This drainage region 630 is separated the region that the water level that absorbs water reduces and the region that the water level that absorbs water does not reduce, is convenient for when installation water conservancy diversion seat 6, according to the position of collection sediment basket 2, places the position of water conservancy diversion seat 6 because: the in-process washes the dishes, the water that most fall back can get into the regional 11 of waterlogging caused by excessive rainfall through album sediment basket 2, the water that gets into the regional 11 of waterlogging caused by excessive rainfall flows back to spray arm 3 through being close to the drainage region 630 that collection sediment basket 2 and water level reduce rapidly through water conservancy diversion seat 6, be favorable to improving return water efficiency, avoid the bubble to get into, and simultaneously, under the effect of drainage region 630, the water velocity increase of collection sediment basket 2 department, have certain scouring action to collection sediment basket 2 lateral walls, be favorable to improving collection sediment effect, automatically, clean the sediment basket.

In this embodiment, the top of the flow guiding sleeve 61 is provided with an arc-shaped flow guiding member 64 which is mutually connected with the upper end of the flow guiding sleeve 61 and has an inner diameter gradually increased, the arc-shaped flow guiding member 64 is located on the top wall of the insertion part 65 and integrally formed with the flow guiding plate 63, and the clamping column 6211 at the top of the supporting arm 621 penetrates through the platform 66 to be arranged.

Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Claims (27)

1. A water flow system comprises a spray arm (3) and a flow guide seat (6), wherein a water inlet (31) is formed in the bottom wall of the spray arm (3), a flow channel (32) communicated with the water inlet (31) is formed in the spray arm (3), a water inlet (601) is formed in the lower part and/or the bottom of the flow guide seat (6), an upper port (67) correspondingly connected with the water inlet (31) of the spray arm (3) is formed in the top of the flow guide seat, and the water flow system is characterized in that: the top of water conservancy diversion seat (6) is provided with grafting portion (65) that can be connected with spray arm (3) water inlet (31) looks plug-in fit, go up port (67) and be located the top of this grafting portion (65), be formed with assembly clearance (A) between grafting portion (65) and water inlet (31), throat (321) of runner (32) extend and extend to the position of neighbouring assembly clearance (A) to water inlet (31).

2. The water flow system of claim 1, wherein: 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 of claim 1, wherein: the tip of the throat (321) of the flow channel (32) is arranged across the assembly gap (A) corresponding to the top of the plug part (65).

4. The water flow system of claim 1, wherein: in the cleaning state, the pressure in the flow channel (32) of the spray arm (3) is higher than the 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 so as to form a water seal for the water inlet (31).

5. The water flow system of claim 1, wherein: the top of water conservancy diversion seat (6) is provided with rand (8), spray arm (3) bottom is connected with this rand (8), and, enclose synthetic sealed chamber (80) jointly between rand (8) and spray arm (3) bottom, water conservancy diversion seat (6) top, this sealed chamber (80) are around the periphery of fit-up clearance (A).

6. The water flow system of claim 5, wherein: the bottom wall of the spray arm (3) is provided with an assembly sleeve (35) which extends downwards around the edge of the water inlet (31) and penetrates through an assembly opening (82) in the clamping ring (8), the insertion part (65) is inserted into the assembly sleeve (35), and the lower edge of the assembly sleeve (35) is provided with a clamping foot (351) which can be abutted against the lower wall surface of the clamping ring (8) so as to detachably restrain the spray arm (3) on the clamping ring (8).

7. The water flow system of claim 6, wherein: the top of the flow guide seat (6) is provided with a platform (66) surrounding the periphery of the insertion part (65), the clamping ring (8) is provided with a surrounding edge (81) extending downwards corresponding to the outer edge of the platform (66), and the surrounding edge (81), the inner bottom wall of the clamping ring (8), the bottom of the assembling sleeve (35), the outer wall of the insertion part (65) and the platform (66) jointly surround the sealing cavity (80).

8. The water flow system according to any one of claims 1 to 7, wherein: the water conservancy diversion seat (6) is including water conservancy diversion cover (61) that link up from top to bottom, the lateral part of water conservancy diversion cover (61) is opened has the breach of intaking (611) that upwards extends from the bottom edge, be provided with on the lateral wall of water conservancy diversion cover (61) from the outside guide plate (612) that extend in breach of intaking (611) edge, and the roof height of this guide plate (612) reduces along water conservancy diversion cover (61) radial outside gradually.

9. The water flow system of claim 8, wherein: the guide plate (612) comprises a top plate (6121) extending outwards from the top edge of the water inlet notch (611) and a side plate (6122) extending outwards from the side wall edge of the water inlet notch (611), and the top plate (6121) and the side plate (6122) jointly enclose a water absorption area (610).

10. The water flow system of claim 9, wherein: the water absorption area (610) is at least one, and the height of the lower edge of the flow guide sleeve (61) beside the water absorption area (610) is lower than that of the outer edge of the top plate (6121).

11. The water flow system of claim 9, wherein: the joint of the top plate (6121) and the flow guide sleeve (61) forms an arc-shaped flow guide structure (6123) with smooth transition.

12. The water flow system of claim 9, wherein: the width of the water absorbing region (610) is gradually reduced along the water flow direction to form a fan-shaped structure.

13. The water flow system of claim 9, wherein: the flow guide seat (6) further comprises a base (62) arranged below the flow guide sleeve (61) at intervals, the water inlet (601) is formed between the base (62) and the lower end of the flow guide sleeve (61), and the lower edge of the side plate (6122) is supported on the base (62).

14. The water flow system of claim 13, wherein: base (62) are the annular and correspond the periphery of water conservancy diversion cover (61) and arrange, be provided with vertical support arm (621) of arranging on base (62), the inboard on this support arm (621) upper portion is connected with water conservancy diversion cover (61) outer wall, the upper end of support arm (621) is provided with buckle (6211) that are used for installing the piece that sprays.

15. The water flow system of claim 13, wherein: the upper wall surface of the base (62) is gradually inclined upwards from outside to inside along the radial direction to form a flow guide inclined surface (622).

16. The water flow system of claim 9, wherein: the periphery of the flow guide seat (6) is also provided with a flow guide plate (63) which extends outwards in the radial direction and gradually reduces in height, at least part of the flow guide plate (63) covers the water absorption area (610), and the flow guide plate (63) extends outwards continuously along the outer edge of the flow guide plate (612).

17. The water flow system of claim 16, wherein: the height of at least partial outer edge of the flow guide plate (63) is lower than that of the lower edge of the flow guide sleeve (61).

18. The water flow system of claim 16, wherein: the periphery of water conservancy diversion seat (6) is arranged for two and interval in regional (610) absorb water, two regional (610) absorb water all by drainage plate (63) cover.

19. The water flow system of claim 18, wherein: in the circumferential direction of the flow guide seat (6), the covering angle (a) of the flow guide plate (63) is 100-150 degrees.

20. The water flow system of claim 18, wherein: the radial length of the drainage plate (63) is different, and the length of the drainage plate (63) corresponding to the first water absorption area (610) is larger than that of the drainage plate (63) corresponding to the second water absorption area (610).

21. The water flow system of claim 20, wherein: the height of the outer edge of the flow guide plate (63) corresponding to the first water absorption area (610) is not higher than that of the lower edge of the flow guide sleeve (61), and the height of the outer edge of the flow guide plate (63) corresponding to the second water absorption area (610) is lower than that of the lower edge of the flow guide sleeve (61).

22. The water flow system of claim 16, wherein: the edge of the drainage plate (63) is provided with a vertically arranged side wall plate (631), and the side wall plate (631) and the drainage plate (63) jointly enclose a drainage area (630).

23. The water flow system of claim 16, wherein: the top of water conservancy diversion cover (61) is provided with and links up each other and the arc water conservancy diversion spare (64) of internal diameter crescent with water conservancy diversion cover (61) upper end, and this arc water conservancy diversion spare (64) and drainage plate (63) integrated into one piece.

24. The water flow system according to any one of claims 1 to 7, wherein: still include impeller subassembly (4) and driving piece (5), impeller subassembly (4) are arranged in water conservancy diversion seat (6) and spray arm (3), are arranged in being used for inhaling water in spray arm (3) from water inlet (601), driving piece (5) are arranged in impeller subassembly below, are used for driving impeller subassembly (4) to rotate.

25. A washing machine using a water flow system according to any one of claims 8 to 23, comprising a tank (1), said tank (1) having a recessed draining area (11) at the bottom, the top of the draining area (11) being covered with a draining plate, the draining plate being provided with a slag collecting basket (2) arranged close to a first edge of the draining area (11), said water flow system being adapted to pump the draining area (11) above the draining plate, characterized in that: the guide seat (6) is arranged in the draining area (11) and close to the second edge of the draining area (11), and the guide plate (63) extends towards the slag collecting basket (2).

26. A washing machine with a water flow system according to any one of claims 16 to 23, comprising a tank (1), wherein the bottom of the tank (1) is provided with a concave draining area (11), the top of the draining area (11) is covered with a draining plate, the draining plate is provided with a slag collecting basket (2) arranged close to a first edge of the draining area (11), the draining area (11) is provided with a water flow system for pumping water from the draining area (11) to the position above the draining plate, and the washing machine is characterized in that: the flow guide seat (6) is arranged in the draining area (11) and close to the second edge of the draining area (11), and the flow guide plate (63) extends towards the slag collecting basket (2).

27. A washing machine with a water flow system according to claim 20 or 21, comprising a tank (1), wherein the bottom of the tank (1) is provided with a concave draining area (11), the top of the draining area (11) is covered with a draining plate, the draining plate is provided with a slag collecting basket (2) arranged close to the first edge of the draining area (11), the draining area (11) is provided with a water flow system for pumping water in the draining area (11) to the position above the draining plate, and the washing machine is characterized in that: the diversion seat (6) is arranged in the draining area (11) and close to the second edge of the draining area (11), and the diversion plate (63) extends towards the slag collection basket (2);

heating member (7) that are close to the third edge and arrange are installed to the bottom in waterlogging caused by excessive rainfall region (11), the outer port in first region (610) of absorbing water is close to heating member (7) and arranges, the outer port in second region (610) of absorbing water is close to collection sediment basket (2) and arranges, and is corresponding, and drainage plate (63) that correspond first region (610) of absorbing water extend near heating member (7), and drainage plate (63) that correspond second region (610) of absorbing water extend to collection sediment basket (2) lateral part.

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