CN112006633B - Spray arm and application thereof - Google Patents

Abstract

The invention relates to a spray arm and application thereof, wherein the spray arm comprises a base, an upper seat, a linkage mechanism and an impeller, the base can be driven by external force to rotate, the central part of the base is provided with an opening which is communicated up and down, the upper seat can be rotatably arranged above the base and is provided with a flow passage, the bottom wall is provided with a corresponding water inlet, and the top wall is provided with a spray hole; the linkage mechanism is arranged between the base and the upper seat and used for realizing linkage between the upper seat and the base, and the impeller is used for drawing water flow into the flow channel from the lower part of the base. When the base rotates rapidly, the upper seat and the base are in a linkage state, the upper seat only carries out high-speed spray type cleaning, when the base rotates slowly, the upper seat is linked with the base, and the upper seat simultaneously carries out slow spray type cleaning and water flow turbulent cleaning, so that different cleaning requirements of consumers are met, and the cleaning effect is improved; the cleaning basket and the cleaning basket are convenient to integrate, the common water tank has an automatic cleaning function by placing the cleaning basket in the water tank, and the cleaning basket can be taken out to be used as the common water tank.

Description

Spray arm and application thereof

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a spray arm for cleaning dishes, fruits and vegetables and an application structure thereof.

Background

A dishwasher is an apparatus that sprays cold or hot water to dishes to remove dirt adhered to the dishes and wash the dishes. Dishes are placed in a dish frame inside a dish washing cabinet, and a general dish washing machine includes a pump and a spray head to spray washing water, a heater to generate hot water, and the like. Such a dishwasher usually requires a separate housing and separate components, so that the general dishwasher is large in volume and is not suitable for being used in some families with large population and small living area, and thus the dishwasher is not common in many families.

In order to save space and expand the application range, many designs of water tank type cleaning machines have been developed, that is, the existing water tank is modified into a cleaning machine, the water tank is directly used as a washing space, and a rotary spray arm is generally arranged at the bottom of the water tank and is generally connected with a pump body driven by a motor. The water tank type cleaning machine comprises a box body forming a washing space, wherein the box body comprises a water tank body and a cover plate which is rotatably connected to the water tank body, the bottom of the water tank body is at least provided with a concave draining area at the central part, a water pump for pumping water in the draining area to the washing space above the draining area is arranged in the draining area, the draining area is covered with a draining plate with draining holes, a rotary spray arm for pumping water out of the water pump is arranged above the draining plate, and a heater is further arranged in the draining area.

Although the sink dish washer saves the installation space of a kitchen, the sink dish washer occupies the sink space, and for users with limited kitchen area, the development of the sink dish washer is restricted by the utilization problem of the sink space. In order to solve the problem, the chinese patent application publication No. CN110946537A, CN201910712436.6, discloses a structure of a sink dish washer, which comprises a sink body, a washing sink for automatically cleaning tableware is arranged in the sink body, a water outlet is arranged at the bottom of the washing sink, and the sink dish washer comprises a pulsator assembly, a transmission flywheel, a water outlet pipe and a driving device for driving the transmission flywheel, wherein the upper end of the water outlet pipe is butted with the lower end of the water outlet, and the transmission flywheel is sleeved on the water outlet pipe and can rotate around the water outlet pipe. This application utilizes offal interface and offal body to assemble the combination, can realize the self-cleaning function, and it uses the offal body as the axle, utilizes magnetic attraction to realize the drive to impeller subassembly.

Although the structure enables the dish washer to be conveniently combined with the existing water tank, the dish washer can only realize water flow turbulence through rotation of the impeller after being combined with the water tank, and water flow cannot be sprayed to fruits, vegetables or dishes in a spraying mode, so that the cleaning effect is poor.

In addition, for the existing water tank type cleaning machine, an open water pump is adopted, and the water pump is combined with a spray arm structure. For a washing machine mainly used for washing dishes, the spray arm can rotate, the spray arm is driven by viscous force of water to rotate, and the rotating speed of the spray arm is difficult to control; for a cleaning machine mainly used for cleaning fruits and vegetables, a spray arm of the cleaning machine does not rotate, and sprayed water flow is mainly used for enabling the water flow to be turbulent, but the turbulent action which can be realized is small; at present, no cleaning machine capable of combining the two functions to meet different requirements of consumers exists.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a spray arm which can switch between a high-speed spray cleaning state and a low-speed spray cleaning state and a turbulent cleaning state so as to meet different cleaning requirements and improve the cleaning effect, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a cleaning basket using the above spray arm, aiming at the current state of the prior art.

The third technical problem to be solved by the present invention is to provide a water tank with the above cleaning basket, which is convenient to integrate with the cleaning basket and switch between the automatic cleaning machine and the water tank, can effectively utilize the space of the water tank, and is convenient to use.

The technical scheme adopted by the invention for solving at least one technical problem is as follows: a spray arm, characterized in that: comprises that

The base can rotate under the drive of external force, and the central part of the base is provided with an opening which is communicated up and down;

the upper seat is rotatably arranged above the base and is provided with a flow channel with relative length, the bottom wall of the upper seat is provided with a water inlet which is arranged corresponding to the opening and is communicated with the flow channel, and the top wall of the upper seat is provided with a spray hole communicated with the flow channel;

the linkage mechanism is arranged between the base and the upper seat and is used for releasing the linkage state of the upper seat and the base in a quick rotation state of the base and linking the upper seat and the base in a slow rotation state of the base; and

the impeller is arranged at the opening of the base, can synchronously rotate along with the base and is used for drawing water flow into the flow channel from the lower part of the base.

For the convenience of assembly, the base and the upper seat are both shaped like a disc, the edge of the upper seat extends downwards to form a surrounding edge, an accommodating cavity is formed by the upper wall surface of the base, the surrounding edge and the lower wall surface of the upper seat in a surrounding mode, and the linkage mechanism is arranged in the accommodating cavity. The above structure can avoid the influence of the residual debris carried in the water flow on the structure of the linkage.

In the above scheme, the link gear includes pendulum rod, balancing weight and elastic component, the middle part of pendulum rod rotates to be connected on the last wall of base and is close to the surrounding edge and arranges, the elastic component is located on the base and makes the trend that the pendulum rod first end remains all the time and offsets with the surrounding edge inner wall, the balancing weight is located on the second end of pendulum rod and can make the pendulum rod first end break away from the surrounding edge under the effect of centrifugal force under the quick rotating state of base. By adopting the structure, when the base rotates clockwise rapidly, the balancing weight swings outwards under the action of centrifugal force, so that the first end of the swing rod compresses the elastic part, at the moment, the first end of the swing rod is separated from the surrounding edge of the upper seat, the base rotates without driving the upper seat to rotate, and only high-speed spray type cleaning is carried out; when the base rotates clockwise at a low speed, the centrifugal force borne by the balancing weight is smaller than the elastic force of the elastic piece, the elastic piece enables the first end of the swing rod to be abutted against the inner wall of the surrounding edge, so that the upper seat rotates along with the lower seat, and at the moment, the upper seat rotates slowly to enable water flow to form large turbulence while low-speed spray type cleaning is carried out; if the base is intermittently and alternately controlled to rotate at a high speed and a low speed, the upper base can rotate for a certain time under the action of inertia at the moment that the low speed rotation is switched into the high speed rotation, so that a washing mode of low speed rotation and high speed spraying is realized; the consumer can select different cleaning modes according to different properties and different dirt degrees of the objects to be cleaned, so as to meet more cleaning requirements and improve the cleaning effect.

Preferably, the first end of the swing rod is provided with a limiting lug extending towards the surrounding edge, and the outer surface of the limiting lug is provided with an outer layer capable of increasing friction with the inner wall of the surrounding edge; the balancing weight is located on one side, close to the surrounding edge, of the second end of the swing rod.

In order to facilitate assembly, a rotating shaft arranged close to the surrounding edge is arranged on the upper wall surface of the base, and a shaft sleeve capable of being in rotating fit with the rotating shaft is arranged in the middle of the oscillating bar; the upper wall surface of the base is provided with positioning blocks which are arranged at intervals with the rotating shaft and offset towards the inner side of the base, the first end of the elastic piece is abutted against the positioning blocks, and the second end of the elastic piece is abutted against the first end of the oscillating bar.

Preferably, the top wall of the upper seat gradually inclines downwards from the central part to the edge to form a flow guide inclined plane, and the flow guide inclined plane is provided with a stirring arm which can stir water flow along with the rotation of the upper seat at intervals. Preferably, the height of the shifting arm is gradually increased from inside to outside along the radial direction of the upper seat, and the height of the shifting arm after being matched with the flow guide inclined plane is not more than the height of the upper seat. The diversion inclined plane can guide the falling water flow after being sprayed, so that the interference on the upward sprayed water column is reduced; the stirring arm structure is favorable for improving the stirring effect on water flow and forming turbulence with larger intensity.

Preferably, a water collecting cavity is formed in the central portion of the upper seat, the two flow channels are respectively connected to two sides of the water collecting cavity, each flow channel and the water collecting cavity form a 6-shaped structure, and the thickness of each flow channel in the axial direction of the upper seat is gradually reduced along the water flow direction. Because the runner is one-way runner, when rivers flow toward the runner tip more, rivers power is littleer, influences the lift of spraying the water column easily, adopts above-mentioned structure, makes the cross-sectional area of runner diminish gradually, is favorable to pressurizeing in the runner, improves the rivers jet height of edge, avoids appearing the washing dead angle, improves the cleaning performance.

Preferably, smooth transition is carried out between the upper edge of the opening and the lower edge of the water inlet, a vertically extending connecting shaft is arranged in the center of the opening, a blocking piece used for fixing the connecting shaft on the inner wall of the opening is arranged on the inner wall of the opening, the upper portion of the connecting shaft penetrates through the water inlet and extends into the upper seat, and the impeller is a centrifugal impeller restrained on the upper portion of the connecting shaft. The separation blade is at least two, and each separation blade is upwards arranged along water flow direction slope from top to bottom in the opening axial. The structure is beneficial to improving the water drawing effect and reducing the energy loss of water.

The utility model provides an use washing basket that has above-mentioned spray arm, is including the washing basket body that has the washing chamber, the bottom of washing basket body is provided with recessed waterlogging caused by excessive rainfall region, its characterized in that: the spray arm can be rotatably arranged in the waterlogging caused by excessive rainfall region, a first magnetic body is arranged on the base, a second magnetic body capable of rotating is arranged below the cleaning basket body, and the second magnetic body corresponds to the first magnetic body and is opposite in polarity. When the second magnetic body rotates, the first magnetic body can be driven to rotate, and then the base is driven to rotate.

The water tank with the cleaning basket comprises a water tank body, wherein a water outlet is formed in the bottom of the water tank body, a sealing cover used for opening or closing the water outlet is arranged on the water outlet in a detachable mode, and the water tank is characterized in that: the cleaning basket is placed in the water tank, and the second magnetic body can be rotationally restrained at the bottom of the water tank. By adopting the structure, the water tank and the cleaning basket are convenient to integrate, and the common water tank can have the automatic cleaning function by directly putting the cleaning basket into the water tank.

In the above scheme, the support is installed to basin body bottom, and this support is the U-shaped structure, and the both sides of U-shaped support are retrained respectively on basin body lateral wall, and the bottom of U-shaped support be located basin body below and with basin body diapire between form installation space, actuating mechanism still includes action wheel, follow driving wheel, drive belt and motor, the action wheel can be located in installation space with rotating and the supporting is on the U-shaped support, the motor is located the support bottom and is used for driving the action wheel and rotates, can rotationally overlap in the outlet periphery from the driving wheel through the bearing of locating on the support, the second magnetic substance is located from the driving wheel and along with the synchronous rotation of driving wheel, the drive belt is connected between action wheel and the follow driving wheel.

Compared with the prior art, the invention has the advantages that: the linkage mechanism between the base and the upper seat is arranged in the spray arm, when the base rotates rapidly, the linkage state between the upper seat and the base is released, the upper seat only performs high-speed spray type cleaning, when the base rotates slowly, the upper seat is linked with the base, and the upper seat performs slow spray type cleaning and water flow turbulent cleaning simultaneously, so that different cleaning requirements of consumers are met, and the cleaning effect is improved; the cleaning basket and the cleaning basket are convenient to integrate, the common water tank has an automatic cleaning function by directly placing the cleaning basket into the water tank, and the common water tank can be used by taking out the cleaning basket, so that the space utilization rate of the water tank is effectively improved.

Drawings

FIG. 1 is a schematic structural view of a spray arm according to an embodiment of the present invention;

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

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is an exploded view from another angle of FIG. 1;

FIG. 5 is a schematic structural view of a sink according to an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5 at another angle;

FIG. 7 is a cross-sectional view of a sink in accordance with an embodiment of the present invention.

Detailed Description

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

The spray arm of this embodiment can be used in a dishwasher to pump water up the bottom of the dishwasher's interior chamber and spray up through the spray arm.

As shown in fig. 1 to 4, the spray arm 9 of the present embodiment includes a base 91, an upper base 92, a linkage mechanism 93, and an impeller 4. The base 91 can rotate under the drive of external force, and the central part of the base 91 is provided with an opening 911 which is through up and down; the upper seat 92 is rotatably disposed above the base 91, the upper seat 92 has a flow passage 921 with a relative length, a water inlet 922 corresponding to the arrangement of the opening 911 and communicating with the flow passage 921 is formed on the bottom wall of the upper seat 92, and a spray hole 923 communicating with the flow passage 921 is formed on the top wall of the upper seat 92. The interlocking mechanism 93 is provided between the base 91 and the upper seat 92, and is configured to release the interlocking state between the upper seat 92 and the base 91 when the base 91 is rotated at a high speed, and to interlock the upper seat 92 and the base 91 when the base 91 is rotated at a low speed. The impeller 4 is disposed at the opening 911 of the base 91 and can rotate synchronously with the base 91, so as to draw water into the flow passage 921 from below the base 91.

The base 91 and the upper seat 92 are both shaped like a disk, the edge of the upper seat 92 extends downwards to form a surrounding edge 924, an accommodating cavity 900 is enclosed by the upper wall surface of the base 91, the surrounding edge 924 and the lower wall surface of the upper seat 92, and the linkage mechanism 93 is arranged in the accommodating cavity 900. The above structure can prevent the link mechanism 93 from being affected by the debris carried in the water flow.

The diapire of upper seat 92 is opened has along the peripheral downwardly extending's of water inlet plug bush, and is corresponding, is provided with the assembly circle on the roof of base 91, and plug bush is planted in the assembly circle and is provided with on its perisporium can with the spacing buckle of the lower wall looks joint of assembly circle thereby avoiding upper seat 92 to break away from base 91.

The linkage mechanism 93 of this embodiment includes pendulum rod 931, balancing weight 932 and elastic component 933, and the middle part of pendulum rod 931 rotates to be connected on the upper wall of base 91 and is close to surrounding edge 924 and arranges, and elastic component 933 locates on base 91 and makes the trend that the first end of pendulum rod 931 keeps offsetting with surrounding edge 924 inner wall all the time, and balancing weight 932 locates on the second end of pendulum rod 931 and can make the first end of pendulum rod 931 break away from surrounding edge 924 under the centrifugal force effect under the quick rotating state of base 91.

The first end of the swinging rod 931 is provided with a limiting protrusion 9311 extending towards the surrounding edge 924, and the outer surface of the limiting protrusion 9311 has an outer layer, such as rubber, a silica gel layer, etc., which can increase friction with the inner wall of the surrounding edge 924. The weight 932 is located at a second end of the swinging rod 931 near the side of the surrounding edge 924. For the convenience of assembly, the upper wall surface of the base 91 is provided with a rotating shaft 912 arranged close to the surrounding edge 924, and the middle part of the swinging rod 931 is provided with a shaft sleeve 9312 capable of rotatably matching with the rotating shaft 912. The upper wall surface of the base 91 is provided with a positioning block 913 disposed at an interval with the rotating shaft 912 and offset towards the inner side of the base 91 relative to the rotating shaft 912, the elastic member 933 is a spring, and a first end abuts against the positioning block 913 and a second end abuts against a first end of the swinging rod 931.

The top wall of the upper seat 92 in this embodiment is gradually inclined downward from the central portion to the edge to form a flow guiding inclined plane 925, and a stirring arm 926 capable of stirring water flow along with the rotation of the upper seat 92 is disposed at an interval on the flow guiding inclined plane 925. The height of the shifting arm 926 gradually increases from inside to outside along the radial direction of the upper seat 92, and the shifting arm 926 is matched with the flow guiding inclined plane 925 to keep the height of the upper seat 92 consistent in the radial direction. The diversion inclined plane 925 can guide the water flow falling after spraying, and interference on an upward spraying water column is reduced; the structure of the shifting arm 926 is beneficial to improving the stirring effect of the water flow and forming a turbulent flow with a larger intensity.

The central part of the upper seat 92 forms a water collecting cavity 927, the flow channels 921 are two and are respectively connected to two sides of the water collecting cavity 927, each flow channel 921 respectively forms a 6-shaped structure with the water collecting cavity 927, and the thickness of the flow channel 921 in the axial direction of the upper seat 92 is gradually reduced along the water flow direction. Because runner 921 is one-way runner, when rivers flow toward the runner tip, rivers power is less, influences the lift of spraying the water column easily, adopts above-mentioned structure, makes the cross-sectional area of runner 921 diminish gradually, is favorable to pressurizeing in the runner 921, improves the rivers jet height of edge, avoids appearing the washing dead angle, improves the cleaning performance.

In the embodiment, the upper edge of the opening 911 and the lower edge of the water inlet 922 are in smooth transition, the connecting shaft 914 extending vertically is arranged in the center of the opening 911, the blocking sheet 915 used for fixing the connecting shaft 914 on the inner wall of the opening 911 is arranged on the inner wall of the opening 911, the upper part of the connecting shaft 914 penetrates through the water inlet 922 to extend into the water collecting cavity 927 of the upper seat 92, and the impeller 4 is a centrifugal impeller constrained on the upper part of the connecting shaft 914. The blocking pieces are four pieces arranged at intervals along the circumferential direction of the connecting shaft 914, and each blocking piece 915 is obliquely arranged along the water flow direction from top to bottom in the axial direction of the opening 911. The structure is beneficial to improving the water drawing effect and reducing the energy loss of water.

As shown in fig. 7, the washing basket of the present embodiment to which the spray arm is applied includes a washing basket body 3 having a washing chamber, a concave draining area 31 is provided at the bottom of the washing basket body 3, and the spray arm is rotatably provided in the draining area 31. The bottom wall of the base 91 is provided with an inserting sleeve which extends downwards along the periphery of the opening 911, correspondingly, the bottom wall of the draining area 31 is provided with an assembling ring, the inserting sleeve is inserted into the assembling ring, and the peripheral wall of the inserting sleeve is provided with a buckle which can be clamped with the lower wall surface of the assembling ring for limiting, so that the base 91 is prevented from being separated from the cleaning basket body 3.

The base 91 is provided with a first magnetic body 5, a rotatable second magnetic body 6 is arranged below the cleaning basket body 3, the second magnetic body 6 corresponds to the first magnetic body 5, the polarities of the two magnetic bodies are opposite, one of the two magnetic bodies forms an N pole, and the other forms an S pole. So that the second magnetic body 6 can drive the first magnetic body 5 to rotate when rotating, and further drive the base 91 to rotate. In order to facilitate the installation of the first magnetic body 5, a plurality of slots 916 are disposed on the lower wall surface of the base 91, and the first magnetic body 5 is a plurality of slots 916 and disposed in the slots 916.

As shown in fig. 5, 6 and 7, the sink applied with the above-mentioned cleaning basket of the present embodiment includes a sink body 1, a drain opening 11 is provided at the bottom of the sink body 1, a lower water cavity 12 extending downward from the edge of the drain opening 11 is provided at the bottom of the sink body 1, and a filter basket 13 is detachably mounted in the lower water cavity 12.

The cover 2 is detachably placed on the drain port 11 of the water tub body 1 to open or close the drain port 11. When the water outlet 11 is opened, the water tank can be used as a common water tank; when the drain port 11 is closed, it can be used as a washer. When the tank body 1 is used as a cleaning machine, the cleaning basket body 3 is placed in the tank body 1.

The bottom of the sink body 1 is further provided with a driving mechanism 7 for driving the second magnetic body 6 to rotate, the driving mechanism 7 includes a driving wheel 71, a driven wheel 72, a transmission belt 73 and a motor 74, and the second magnetic body 6 is rotatably provided at the bottom of the sink body 1 and corresponds to the first magnetic body 5. The driving wheel 71 is rotatably provided at the bottom of the sink body 1, the motor 74 is used for driving the driving wheel 71 to rotate, the driven wheel 72 is rotatably sleeved on the periphery of the drain opening 11, the second magnetic body 6 is provided on the driven wheel 72 and rotates synchronously with the driven wheel 72, and the transmission belt 73 is connected between the driving wheel 71 and the driven wheel 72. The motor 74 rotates to drive the driving wheel 71 to rotate, and further drives the driven wheel 72 and the second magnetic body 6 thereon to rotate through the transmission belt 73, because the polarity of the second magnetic body 6 is opposite to that of the first magnetic body 5, the impeller 4 carrying the first magnetic body 5 can be driven to rotate.

For the convenience of assembly, a bracket 8 is installed at the bottom of the sink body 1, the driven wheel 72 is rotatably supported on the bracket 8 through a bearing 75, an accommodating cavity 721 is formed in the driven wheel 72, and the second magnetic body 6 is constrained in the accommodating cavity 721. The support 8 is of a U-shaped structure, two sides of the U-shaped support 8 are respectively constrained on the outer side wall of the sink body 1, the bottom of the U-shaped support 8 is located below the sink body 1 and forms an installation space 80 with the bottom wall of the sink body 1, the bottom of the U-shaped support 8 is provided with a port for the drainage cavity 12 to pass through, a bearing 75 is arranged on the support 8 around the port, and the driven wheel 72 is sleeved on the periphery of the drainage cavity 12 and supported on the bearing 75. The driving wheel 71 is rotatably disposed in the mounting space 80 and supported on the upper wall surface of the bottom of the bracket 8, the motor 74 is disposed on the bottom of the bracket 8, and the output shaft passes through the bottom of the bracket 8 and is connected with the driving wheel 71 to drive the driving wheel 71 to rotate.

The cleaning basket of the embodiment is convenient to combine with the water tank body 1 to form a cleaning machine, when the cleaning machine is used, the sealing cover 2 is covered, the cleaning basket body 3 is placed in the water tank body 1, the driving mechanism 7 drives the second magnetic body 6 to rotate, so that the first magnetic body 5 and the spraying arm are driven to rotate, the spraying arm 9 rotates to enable water at the bottom of the cleaning basket body 3 to enter the flow passage 921, and further, fruits, vegetables and dishes in the cleaning basket body 3 are sucked through the spray holes 923 to be cleaned in a spraying manner, so that the cleaning effect is improved; during cleaning, in order to avoid splashing of water columns, a cover plate can be arranged at the top of the cleaning basket body 3; a vegetable basket 33 for containing fruits and vegetables or a bowl rack for containing dishes can be placed in the cleaning basket body 3, and the vegetable basket 33 or the bowl rack is positioned above the impeller 4, so that water columns emitted from the side part of the cleaning basket body 3 can spray and clean objects to be cleaned in the vegetable basket 33 or the bowl rack;

in the above cleaning process, when the base 91 rotates clockwise rapidly, the counterweight 932 swings outwards under the action of centrifugal force, so that the first end of the swinging rod 931 compresses the elastic member 933, at this time, the first end of the swinging rod 931 is separated from the surrounding edge 924 of the upper seat 92, the base 91 rotates without driving the upper seat 92 to rotate, and only high-speed spray cleaning is performed; when the base 91 rotates clockwise at a slow speed, the centrifugal force applied to the weight balancing block 932 is smaller than the elastic force of the elastic piece 933, the elastic piece 933 enables the first end of the swinging rod 931 to abut against the inner wall of the surrounding edge 924, so that the upper base 92 rotates along with the lower base 91, and at the moment, the upper base 92 rotates slowly to enable water flow to form large turbulence while low-speed spray cleaning is carried out; if the base 91 is intermittently and alternately controlled to rotate at a high speed and a low speed, the upper base 92 rotates for a certain time under the inertia action at the moment when the low speed rotation is switched to the high speed rotation, so that a washing mode of low speed rotation and high speed spraying is realized; consumers can select different cleaning modes according to different properties and different dirt degrees of the objects to be cleaned so as to meet more cleaning requirements and improve the cleaning effect;

when the cleaning machine is not needed, the cleaning basket body 3 is taken out of the water tank body 1, and the sealing cover 2 is taken out at the same time, so that the cleaning machine can be used as a common water tank, and the space utilization rate of the water tank is effectively improved.

Claims (13)

1. A spray arm, characterized in that: comprises that

The base (91) can rotate under the drive of external force, and an opening (911) which is through up and down is formed in the central part of the base (91);

the upper seat (92) is rotatably arranged above the base (91), the upper seat (92) is provided with a flow channel (921) with relative length, a water inlet (922) which is arranged corresponding to the opening (911) and is communicated with the flow channel (921) is formed in the bottom wall of the upper seat (92), and a spray hole (923) communicated with the flow channel (921) is formed in the top wall of the upper seat (92);

a linkage mechanism (93) which is arranged between the base (91) and the upper seat (92) and is used for releasing the linkage state of the upper seat (92) and the base (91) when the base (91) rotates rapidly and linking the upper seat (92) and the base (91) when the base (91) rotates slowly; and

the impeller (4) is arranged at the opening (911) of the base (91), can synchronously rotate along with the base (91), and is used for drawing water flow into the flow channel (921) from the lower part of the base (91).

2. The spray arm of claim 1, wherein: base (91) and upper bracket (92) all take the shape of a circular disk, the edge downwardly extending of upper bracket (92) is formed with surrounding edge (924), enclose jointly between base (91) upper wall face, surrounding edge (924) and upper bracket (92) lower wall face and become holding chamber (900), link gear (93) are located in this holding chamber (900).

3. The spray arm of claim 2, wherein: link gear (93) include pendulum rod (931), balancing weight (932) and elastic component (933), the middle part of pendulum rod (931) is rotated and is connected on the last wall of base (91) and is close to surrounding edge (924) and arranges, elastic component (933) are located on base (91) and are made the trend that pendulum rod (931) first end remains all the time and offsets with surrounding edge (924) inner wall, balancing weight (932) are located on the second end of pendulum rod (931) and can make pendulum rod (931) first end break away from the surrounding edge under base (91) fast rotation state receiving centrifugal force effect.

4. The spray arm of claim 3, wherein: a limiting bump (9311) extending towards the surrounding edge (924) is arranged at the first end of the swinging rod (931), and an outer layer capable of increasing friction with the inner wall of the surrounding edge (924) is arranged on the outer surface of the limiting bump (9311); and the balancing weight (932) is positioned on one side, close to the surrounding edge (924), of the second end of the swinging rod (931).

5. The spray arm of claim 3, wherein: a rotating shaft (912) which is arranged close to the surrounding edge (924) is arranged on the upper wall surface of the base (91), and a shaft sleeve (9312) which can be in rotating fit with the rotating shaft (912) is arranged in the middle of the swinging rod (931); the upper wall surface of the base (91) is provided with positioning blocks (913) which are arranged at intervals with the rotating shaft (912) and offset towards the inner side of the base (91), the first end of the elastic piece (933) abuts against the positioning blocks (913), and the second end of the elastic piece (933) abuts against the first end of the swinging rod (931).

6. The spray arm according to any one of claims 1 to 5, wherein: the top wall of the upper seat (92) is gradually inclined downwards from the central part to the edge to form a flow guide inclined plane (925), and the flow guide inclined plane (925) is provided with a shifting arm (926) at intervals, wherein the shifting arm can rotate along with the upper seat (92) to stir water flow.

7. The spray arm of claim 6, wherein: the height of the shifting arm (926) is gradually increased from inside to outside along the radial direction of the upper seat (92), and the height of the shifting arm (926) after being matched with the flow guide inclined plane (925) is not more than the height of the upper seat (92).

8. The spray arm of claim 6, wherein: the central part of upper seat (92) forms catchment chamber (927), runner (921) are two and connect respectively in the both sides of this catchment chamber (927), and each runner (921) forms 6 shape structures with catchment chamber (927) respectively, runner (921) is at the ascending thickness of upper seat (92) axial and reduce gradually along the rivers direction.

9. The spray arm according to any one of claims 1 to 5, wherein: smooth transition between the upper edge of opening (911) and water inlet (922) lower limb, the central authorities of opening (911) arrange and are provided with vertical extension's connecting axle (914), and be provided with on the inner wall of opening (911) and be used for fixing separation blade (915) on opening (911) inner wall with connecting axle (914), the upper portion of connecting axle (914) is passed water inlet (922) and is extended to in upper bracket (92), impeller (4) are for retraining the centrifugal impeller on connecting axle (914) upper portion.

10. The spray arm of claim 9, wherein: the baffle plates (915) are at least two, and each baffle plate (915) is obliquely arranged along the water flow direction from top to bottom in the axial direction of the opening (911).

11. A wash basket with a spray arm according to any one of claims 1 to 10, comprising a wash basket body (3) having a wash chamber, wherein the bottom of the wash basket body (3) is provided with a recessed draining area (31), characterized in that: the spraying arm (9) can be rotatably arranged in the draining area (31), a first magnetic body (5) is arranged on the base (91), a second magnetic body (6) capable of rotating is arranged below the cleaning basket body (3), and the second magnetic body (6) corresponds to the first magnetic body (5) and is opposite in polarity.

12. A sink to which the washing basket of claim 11 is applied, comprising a sink body (1), a drain opening (11) formed in the bottom of the sink body (1), and a cover (2) detachably attached to the drain opening (11) for opening or closing the drain opening (11), wherein: the cleaning basket is placed in the water tank body (1), and the second magnetic body (6) can be rotationally restrained at the bottom of the water tank body (1).

13. The sink according to claim 12, wherein: the water tank comprises a water tank body (1), a driving mechanism (7) used for driving a second magnetic body (6) to rotate is further arranged at the bottom of the water tank body (1), a support (8) is mounted at the bottom of the water tank body (1), the support (8) is of a U-shaped structure, two sides of the U-shaped support (8) are respectively constrained on the outer side wall of the water tank body (1), the bottom of the U-shaped support (8) is located below the water tank body (1) and forms an installation space (80) with the bottom wall of the water tank body (1), the driving mechanism (7) further comprises a driving wheel (71), a driven wheel (72), a transmission belt (73) and a motor (74), the driving wheel (71) can be rotatably arranged in the installation space (80) and supported on the U-shaped support (8), the motor (74) is arranged at the bottom of the support and used for driving the driving wheel (71) to rotate, the driven wheel (72) can be rotatably sleeved on the periphery of a water outlet (11) through a bearing arranged on the support (8), the second magnetic body (6) is arranged on the driven wheel (72) and rotates along with the driven wheel (72) synchronously, and the transmission belt (73) is connected between the driving wheel (71) and the driven wheel (72).

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