CN115670341A - Spray arm for cleaning machine, cleaning machine and cleaning control method of cleaning machine - Google Patents

Abstract

The invention relates to a spray arm for a cleaning machine, the cleaning machine and a cleaning control method of the cleaning machine, wherein the spray arm comprises a main body, a flow channel is arranged in the main body, and the main body is provided with a water inlet and a plurality of spray holes which are communicated with the flow channel, so that the main body can rotate under the action of water flow; the partition board is arranged in the main body and divides the main body into a chamber for storing detergent and the flow channel, and a through hole for communicating the flow channel and the chamber is formed in the partition board; the main body is provided with a feeding port communicated with the cavity, and the through hole is positioned on a moving path of the detergent when the main body rotates. Put in the function integration with the detergent on the spray arm for the spray arm not only has the effect of shower water, can also spray the washing liquid simultaneously, and an arm is multi-purpose, reduces the cost, need not to set up automatically controlled detergent and puts in the structure, does not need automatically controlled maintenance.

Description

Spray arm for cleaning machine, cleaning machine and cleaning control method of cleaning machine

Technical Field

The invention relates to the technical field of dish washing machines capable of washing tableware and fruits and vegetables, in particular to a spray arm for a washing machine, the washing machine and a washing control method of the washing machine.

Background

The dish washer has the advantages of good cleaning effect, capability of disinfecting meals, time saving, labor saving and the like, thereby being more and more widely used. At present, dish washing machines mostly use dish washing powder as a detergent, a distributor is arranged on a door body of the dish washing machine, after a user opens the door body, the dish washing powder is placed in the distributor, and in a washing stage of the dish washing machine, the distributor timely puts the dish washing powder into a washing chamber of the dish washing machine, as shown in a door body structure and a dish washing machine disclosed in a Chinese invention patent with a patent number of CN202122838628.7 (with a publication number of CN 216364965U).

Most of the existing detergent feeding structures are as shown in the above patents, an additional detergent feeding structure is required to be specially arranged on the door body, which increases the cost, and in order to be able to convey detergent into the washing cavity of the dishwasher or to feed the washing liquid in a specific washing time sequence, the detergent feeding structure is usually in an electric control mode, which is high in cost and failure rate.

Of course, the detergent may be manually added into the washing chamber, but this is troublesome, and it is inconvenient to add the detergent in a specific washing time sequence, which affects the washing effect, and if the detergent is solid, the detergent is directly added into the washing chamber, which may not be completely dissolved and discharged.

Therefore, the existing detergent feeding structure is to be further improved.

Disclosure of Invention

The invention provides a spray arm for a cleaning machine, which can be used for feeding a detergent.

The second technical problem to be solved by the present invention is to provide a cleaning machine using the spray arm in view of the current situation of the prior art.

A third technical problem to be solved by the present invention is to provide a cleaning control method of the above-mentioned cleaning machine, which can eject the detergent in a specific cleaning sequence, in view of the current state of the art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: a spray arm for a cleaning machine comprising

The water flow control device comprises a main body, a water inlet and a plurality of spray holes, wherein a flow channel is formed in the main body, and the main body is provided with the water inlet and the spray holes which are in fluid communication with the flow channel, so that the main body can rotate under the action of water flow;

it is characterized by also comprising

The partition board is arranged in the main body and divides the main body into a chamber for storing detergent and the flow channel, and a through hole for communicating the flow channel with the chamber is formed in the partition board;

the main body is provided with a feeding port communicated with the cavity, and the through hole is positioned on a moving path of the detergent when the main body rotates.

In order to enable the detergent to be put in more modes, the main body is further provided with an outlet which penetrates through the wall thickness of the main body and is communicated with the chamber, and the through hole is positioned between the putting-in opening and the outlet along the moving path of the detergent when the main body rotates. When the rotating speed of the main body is low, the detergent can flow to the through hole, enter the flow channel, and is mixed with water and then sprayed out from the spray hole of the main body; when the rotation speed of the body is greater, the detergent can flow to a more distant position, i.e. the outlet, under the action of the centrifugal force of the body, so that the detergent is directly thrown into the washing chamber of the washing machine.

In order to enable the main body to be closed when the rotating speed is high, the through hole can be closed, detergent can flow out of the outlet, a shielding plate capable of opening or shielding the through hole is further arranged in the main body, an installation shaft is arranged in the flow channel, the shielding plate is rotatably installed on the installation shaft, the shielding plate always keeps the trend of opening the through hole under the action of an elastic piece, and one wall surface of the shielding plate faces the water flow direction in the state that the through hole is opened by the shielding plate. When the rotating speed of the main body is lower, the through hole is in an opened state, and the detergent enters the flow channel from the through hole; when the rotating speed of the main body is higher, the water flow impacts the shielding plate to enable the shielding plate to close the through hole, and the detergent flows to the outlet to flow out under the action of larger centrifugal force.

In order to adjust the putting angle and the putting area of the detergent, the outlet is in a strip shape, and a sliding block capable of moving along the length direction of the outlet is arranged in the outlet in a sliding mode. The sliding block can be manually shifted and can also be driven by other driving mechanisms. More detergents can be put into the seriously-polluted area in a targeted manner by moving the sliding block.

In order to prevent the sliding block from being separated from the outlet, the sliding block is I-shaped and comprises a sliding part, a first limiting part and a second limiting part, the sliding part is embedded in the outlet and can slide along the outlet, the sliding part is provided with a first end extending into the cavity and a second end exposed out of the main body, the first limiting part is arranged at the first end of the sliding part and is abutted against the wall surface of the cavity, and the second limiting part is arranged at the second end of the sliding part and is abutted against the outer wall surface of the main body. The first limiting part and the second limiting part play a role in limiting the sliding block to be separated from the outlet.

Preferably, the outlet is formed in a side wall of the main body such that the detergent is thrown to a position distant from a central position of the washing machine and then returns to the center of the washing machine along with the water flow (the center is a water suction port), in which the detergent is sufficiently mixed with the water, thereby reducing the amount of the detergent used and the detergent residue. The bottom wall surface of the chamber is partially an inclined surface which is inclined from bottom to top in the direction far away from the water inlet, and the upper end of the inclined surface is connected with the outlet so as to convey the detergent to the outlet.

When the feeding port is not used for feeding, the feeding port needs to be closed to prevent the detergent from being thrown out of the feeding port in the rotating process of the main body, and a rotating cover at the feeding port is provided with a cover plate capable of opening or closing the feeding port; or the delivery port is detachably covered with a cover plate.

In order to add various detergents, the main body is strip-shaped, the central part of the main body is provided with a water collecting cavity, two sides of the water collecting cavity are respectively provided with a flow channel communicated with the water collecting cavity, the flow channel extends along the length direction of the main body, the water inlet is arranged on the bottom wall of the main body and is communicated with the water collecting cavity in a fluid mode, the spray holes are arranged on the top wall of the main body, the two cavities are respectively arranged adjacent to the flow channel, the two cavities extend along the length direction of the main body, and correspondingly, the number of the feeding openings is two. Thus, different kinds of detergents can be put in different chambers according to the requirement.

In order to clean the cleaning machine, the central part of the main body is provided with a water collecting cavity, the side of the water collecting cavity is provided with a flow channel communicated with the water collecting cavity, the top wall of the main body is also provided with a feed inlet communicated with the water collecting cavity, and the water inlet is arranged on the bottom wall of the main body and is communicated with the water collecting cavity in a fluid mode. According to the common general knowledge in the field of dish washers, water is pumped into the spray arm through the water pump, so the water inlet of the spray arm is communicated with the water pump, the detergent enters the water collecting cavity from the feed opening and finally can enter the water pump, the washing liquid can be fully stirred by utilizing the direct contact of the blades of the water pump and the washing liquid, the viscosity of the washing liquid is reduced, the dispersity of the detergent in water is improved, the detergent is sprayed to a distance along with water flow, meanwhile, the detergent can clean the blades of the water pump and the inner wall of the spray arm, and oil stain residues often exist on the surface of the component.

In order to make the detergent enter the water collecting cavity from the feed opening when needed, the detergent is stored in the main body when not needed, the top wall of the main body is provided with a feeding cavity with an open top, the feed opening is arranged on the bottom wall of the feeding cavity, the feeding cavity is internally provided with a cover body capable of opening or closing the feed opening, the lower part of the feeding cavity is of a first cone-shaped structure gradually reducing the diameter from top to bottom, the cover body is transversely arranged and can move up and down relative to the feeding cavity, the lower part of the cover body is of a second cone-shaped structure gradually reducing the diameter from top to bottom, the first cone-shaped structure is matched with the second cone-shaped structure, and the maximum outer diameter of the cover body is smaller than the inner diameter of the upper part of the feeding cavity. The cover body can be driven by a cavitation motor to move up and down, when the cover body is pushed to the upper part of the feeding cavity by pressurized air, the detergent can leak to the lower part of the feeding cavity from a gap between the outer peripheral edge of the cover body and the inner peripheral edge of the upper part of the feeding cavity, finally enters the water collecting cavity from the feeding port and then enters the water pump; when the cavitation motor is not acted on the cover body, the cover body is attached to the bottom wall of the feeding cavity under the action of gravity, and the feeding port is shielded.

In the scheme, the outlet is in a strip shape, and a sliding block capable of moving along the length direction of the outlet is arranged in the outlet in a sliding manner; the water collecting device is characterized in that a water collecting cavity is formed in the center of the main body, a flow channel communicated with the water collecting cavity is formed beside the water collecting cavity, a feed opening communicated with the water collecting cavity is further formed in the top wall of the main body, and the water inlet is formed in the bottom wall of the main body and is communicated with the water collecting cavity in a fluid mode.

The technical scheme adopted by the invention for solving the second technical problem is as follows: a cleaning machine is characterized in that: the spraying device comprises a box body and a spraying arm, wherein the spraying arm can be rotatably arranged in a washing cavity of the box body.

The technical scheme adopted by the invention for solving the third technical problem is as follows: a cleaning control method of a cleaning machine is characterized in that the cleaning machine comprises a box body, the spray arm and a water pump for pumping water into a flow passage, and the cleaning control method comprises the following steps:

(1) Putting detergent into the washing machine from a putting opening;

(2) Poking the sliding block to ensure that the direction of the detergent sprayed out of the outlet faces to the tableware with larger dirt degree;

(3) Water is fed, the water pump works, the rotating speed is V1, the main body rotates, the detergent reaches the outlet under the action of centrifugal force generated when the main body rotates, the detergent is sprayed towards the tableware with larger dirt degree, the detergent is not mixed with the water at the moment, the purity is higher, and the through hole is in a closed state at the moment;

(4) The water pump stops working, the detergent soaks the tableware with larger degree of dirt, so that the dirt is dissolved by the detergent and is washed away by water subsequently;

(5) The water pump works again, the rotating speed is V2, V2 is less than V1, at the moment, the shielding plate closes the through hole under the action of water flow, but the detergent cannot reach the outlet under the action of centrifugal force generated when the main body rotates, and at the moment, clear water is sprayed out from the spraying arm to rinse and wash tableware;

(6) Stopping the water pump, and feeding water again after draining;

(7) The water pump works again, the rotating speed is V3, V3 is less than V2, because the water flow intensity is small, the through hole is in an open state, the detergent reaches the through hole under the action of centrifugal force generated when the main body rotates, flows into the flow channel, is mixed with water and then is sprayed into the washing cavity from the spray hole to wash the tableware; because the tableware is washed once by the detergent, the detergent dissolving solution can meet the washing requirement, and the dosage of the detergent is reduced;

(8) The rotating speed of the water pump is increased to V2, and the spray arm sprays clean water to rinse and wash the tableware;

(9) And stopping the water pump to discharge water.

The oil dirt washed from the tableware may be adhered to the washing cavity and the water pump, so that the washing control method of the washing machine further includes the following steps:

(10) Adding detergent from a feeding port;

(11) Water is fed, a water pump works, the rotating speed is V2, and water with detergent dissolved in is sprayed out of a spray hole to be cleaned; detergent enters the water pump from the water collecting cavity through the water inlet, the impeller of the water pump rotates to fully dissolve the detergent, and when the water pump is cleaned, detergent dissolving liquid enters the washing cavity to clean the washing cavity;

(12) And (5) draining water, and finishing the operation.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the spray arm is provided with the cavity capable of putting in the detergent, when the spray arm rotates, the detergent can flow out of the through hole and enter the flow channel under the action of centrifugal force, and is sprayed out of the spray hole together with water after being dissolved in the water to clean tableware; the invention integrates the detergent feeding function on the spray arm, so that the spray arm not only has the function of spraying water, but also can spray the washing liquid simultaneously, one arm has multiple purposes, the cost is reduced, an electric control detergent feeding structure is not required, and electric control maintenance is not required;

2. the invention adjusts the rotating speed of the main body by controlling the rotating speed of the water pump, so that the detergent directly flows out from the outlet or flows out from the spray hole after being dissolved in water or is not sprayed out from the spray arm in a specific cleaning time sequence, thus realizing various combinations of putting different detergents in different stages or putting detergents in different positions and the like in different stages by utilizing centrifugal force to meet the cleaning requirement without complex electric control logic and parts.

Drawings

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

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1 (taken from the outlet);

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a schematic structural view of the slider of FIG. 4;

FIG. 6 is a cross-sectional view of FIG. 1 (taken at the self-presenting port);

fig. 7 is a cross-sectional view (cut from the charging port) of fig. 1.

Detailed Description

The invention is described in further detail below with reference to the following examples of the drawings.

As shown in fig. 1 to 7, the cleaning machine of the preferred embodiment includes a box body having a washing chamber, and a spray arm a rotatably disposed in the washing chamber of the box body.

The spray arm A comprises a main body 1, and a water inlet 12 and a plurality of spray holes 13 are formed in the main body 1. In this embodiment, the main body 1 is hollow, the partition plate 5 is disposed inside the main body 1 to divide the inside of the main body 1 into a flow channel 15 through which water flows and a chamber 16 for storing detergent, and the water inlet 12 and the nozzle 13 are both in fluid communication with the flow channel 15, so that the main body 1 can rotate under the action of water flow, and the main body 1 can rotate under the action of water flow is the prior art, and will not be described herein again.

A feeding port 17 communicated with the cavity 16 is formed in the top wall of the main body 1, a through hole 18 for communicating the flow channel 15 with the cavity 16 is formed in the partition plate 5, the feeding port 17 is arranged close to the water inlet 12, and the through hole 18 is located on a moving path of detergent when the main body 1 rotates.

The side wall of the main body 1 is also provided with an outlet 19 which runs through the wall thickness and is communicated with the chamber 16, the bottom wall surface of the chamber 16 is partially an inclined surface 161 which is inclined from bottom to top in the direction away from the water inlet 12, the upper end of the inclined surface 161 is connected with the outlet 19, the through hole 18 is positioned between the feeding port 17 and the outlet 19 along the moving path of the detergent when the main body 1 rotates.

As shown in fig. 2, the main body 1 is further provided with a shutter 2 capable of opening or blocking the through hole 18, the flow passage 15 is provided with an installation shaft 21, the shutter 2 is rotatably installed on the installation shaft 21, the shutter 2 always tends to open the through hole 18 by an elastic member 22, and one wall surface of the shutter 2 faces the water flow direction in a state where the shutter 2 opens the through hole 18. The elastic member may be a torsion spring.

The cleaning machine further comprises a water pump for pumping water into the flow passage 15, the water pump can adopt an existing structure, and the water pump is also used for pumping water into the flow passage 15 in the prior art, and is not described in detail herein. When the cleaning machine works, the spray arm rotates, water flow is driven into a flow channel 15 of the main body 1 from a water inlet 12 by a water pump positioned at the bottom of the box body, high pressure is formed inside the main body 1, and the high pressure is sprayed outwards along with a spray hole 13 arranged on the main body 1 to drive the spray arm to rotate clockwise. In addition, the rotating speed of the main body 1 can be adjusted by controlling the rotating speed of the water pump, when the rotating speed of the main body 1 is smaller, the through hole 18 is in an opened state, the detergent can flow to the through hole 18 under the action of the centrifugal force of the main body 1, enter the flow channel 15, and is sprayed out from the spray hole 13 of the main body 1 after being mixed with the water; when the rotation speed of the body 1 is high, the water flow impacts the shutter 2 so that the shutter 2 closes the through hole 18, and the detergent can flow to a further position, i.e. at the outlet 19, under the centrifugal force of the body 1, so that the detergent is directly thrown into the washing chamber of the washing machine.

As shown in fig. 1, 3, 4 and 5, in the present embodiment, the outlet 19 is in a strip shape, the sliding block 3 capable of moving along the length direction thereof is slidably disposed in the outlet 19, the sliding block 3 is in an i shape and includes a sliding portion 31, a first limiting portion 32 and a second limiting portion 33, the sliding portion 31 is embedded in the outlet 19 and is capable of sliding along the outlet 19, the sliding portion 31 has a first end extending into the chamber 16 and a second end exposed outside the main body 1, the first limiting portion 32 is disposed at the first end of the sliding portion 31 and abuts against the wall surface of the chamber 16, and the second limiting portion 33 is disposed at the second end of the sliding portion 31 and abuts against the outer wall surface of the main body 1. More detergents can be put in the seriously-polluted area in a targeted manner by pulling the sliding block 3. Of course, the slide block 3 may not be provided; one sliding block 3 can be arranged, if the length of the outlet 19 is long, a plurality of sliding blocks 3 can be arranged at intervals along the extending direction of the outlet 19, and therefore a plurality of water columns can be sprayed out to clean different dirty areas in a targeted mode.

In this embodiment, since the convex portion 191 is provided on the outer wall surface of the main body 1, the wall surface of the convex portion 191 is spherical, and the outlet 19 is opened in the convex portion 191, the outlet 19 is curved so as to be curved away from the inside of the main body 1.

In this embodiment, the rotary cover at the input port 17 is provided with a cover plate 4 capable of opening or closing the rotary cover, and when the detergent is not input, the input port 17 needs to be closed to prevent the detergent from being thrown out from the input port 17 in the rotating process of the main body 1. Of course, the cover plate 4 may also be detachably covered at the input port 17, for example, by a snap connection, a screw connection, or other detachable manner.

As shown in fig. 2, the main body 1 is strip-shaped, the central portion of the main body 1 is provided with a water collecting cavity 10, two sides of the water collecting cavity 10 are respectively provided with a flow channel 15 communicated with the water collecting cavity 10, the flow channel 15 extends along the length direction of the main body 1, the water inlet 12 is arranged on the bottom wall of the main body 1 and is in fluid communication with the water collecting cavity 10, the spray holes 13 are arranged on the top wall of the main body 1, two chambers 16 are respectively arranged adjacent to the flow channel 15, the two chambers 16 both extend along the length direction of the main body 1, and correspondingly, two feeding ports 17 are provided. This allows different types of detergent to be dosed into different chambers 16 as required.

As shown in fig. 7, a feeding chamber 14 with an open top is opened on the top wall of the main body 1, a cover 6 capable of opening or closing the open top is covered on the open top of the feeding chamber 14, and the cover 6 may be rotatably disposed at the open top of the feeding chamber 14 or detachably disposed at the open top of the feeding chamber 14.

The bottom wall of the feeding cavity 14 is provided with a feeding port 141, the feeding port 141 is communicated with the water collecting cavity 10, and the feeding cavity 14 is internally provided with a cover body 7 capable of opening or closing the feeding port 141. In this embodiment, the lower portion of the feeding cavity 14 is a first conical structure 142 gradually reducing in diameter from top to bottom, the cover 7 is transversely disposed and can move up and down relative to the feeding cavity 14, the lower portion of the cover 7 is a second conical structure 71 gradually reducing in diameter from top to bottom, the first conical structure 142 is adapted to the second conical structure 71, and the maximum outer diameter of the cover 7 is smaller than the inner diameter of the upper portion of the feeding cavity 14.

According to the common general knowledge in the field of dish washing machines, water is pumped into the spray arm through the water pump, so that the water inlet 12 of the spray arm is communicated with the water pump, detergent entering the water collecting cavity 10 from the feeding port 141 finally can enter the water pump, the washing liquid can be fully stirred by utilizing the direct contact between the impeller blade of the water pump and the washing liquid, the viscosity of the washing liquid is reduced, the dispersity of the detergent in the water is improved, the detergent can be sprayed to a distance along with water flow, meanwhile, the detergent can clean the blade of the water pump and the inner wall of the spray arm, and oil stain residues often exist on the surface of the component.

The cover body 7 can be driven by a cavitation motor to move up and down, when the cover body 7 is pushed to the upper part of the feeding cavity 14 by pressurized air, detergent can leak to the lower part of the feeding cavity 14 from a gap between the outer peripheral edge of the cover body 7 and the inner peripheral edge of the upper part of the feeding cavity 14, finally enters the water collecting cavity 10 from the feeding port 141, and then enters the water pump; when the cavitation motor does not act on the cover body 7, the cover body 7 is attached to the bottom wall of the feeding cavity 14 under the action of gravity, and the feeding port 141 is shielded. Of course, the cover 7 may be driven by other driving methods.

The detergent of this embodiment may be in the form of powder or liquid.

The cleaning control method of the cleaning machine of the embodiment comprises the following steps:

(1) Detergent is put in from the putting-in opening 17;

(2) Pokes the slider 3 to make the direction of the detergent sprayed out from the outlet 19 face the tableware with larger dirt degree;

(3) Water is fed, the water pump works, the rotating speed is V1, the main body 1 rotates, the detergent reaches the outlet 19 under the action of centrifugal force generated when the main body 1 rotates, the detergent is sprayed to the tableware with larger dirt degree, the detergent is not mixed with the water at the moment, the purity is higher, and the through hole 18 is in a closed state at the moment;

(4) The water pump stops working, the detergent soaks the tableware with larger degree of dirt, so that the dirt is dissolved by the detergent and is washed away by water subsequently;

(5) The water pump works again, the rotating speed is V2, V2 is less than V1, at the moment, the shielding plate 2 closes the through hole 18 under the action of water flow, but the detergent cannot reach the outlet 19 under the action of centrifugal force generated when the main body 1 rotates, at the moment, clear water is sprayed out of the spraying arm, and the tableware is rinsed and washed;

(6) Stopping the water pump, and feeding water again after draining;

(7) The water pump works again, the rotating speed is V3, V3 is less than V2, because the water flow intensity is small, the through hole 18 is in an open state, the detergent reaches the through hole 18 under the action of centrifugal force generated when the main body 1 rotates, flows into the flow channel 15, is mixed with water, and is sprayed into the washing cavity from the spray hole 13 to wash tableware; because the tableware is washed once by the detergent, the detergent dissolving solution can meet the washing requirement, and the using amount of the detergent is reduced;

(8) The rotating speed of the water pump is increased to V2, and the spray arm sprays clean water to rinse and wash the tableware;

(9) Stopping the water pump to discharge water;

(10) Detergent is put in from the feeding port 141;

(11) Water is fed, the water pump works at the rotating speed of V2, and water with detergent dissolved in is sprayed out from the spray holes 13 for cleaning; the oil stain washed from the tableware may be stained on the washing cavity and the water pump, so the oil stain in the washing cavity and the water pump needs to be cleaned, the detergent enters the water pump from the water collecting cavity through the water inlet, the impeller of the water pump rotates to fully dissolve the detergent, and the detergent dissolving liquid enters the washing cavity to clean the washing cavity while the water pump is cleaned;

(12) And (5) draining water and finishing the operation.

The above steps (10) to (12) may be determined as necessary whether to be performed.

The rotation speed of the main body 1 can be adjusted in a conventional manner, and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration only and are not to be construed as limiting, for example, "upper" and "lower" are not necessarily limited to directions opposite or coincident with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow from the first portion along a flow path or/and be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third member, such as a fluid channel, e.g., a pipe, a channel, a conduit, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow therethrough, or a combination thereof.

Claims (14)

1. A spray arm for a cleaning machine includes

The water-saving device comprises a main body (1), wherein a flow channel (15) is formed in the main body (1), and a water inlet (12) and a plurality of spray holes (13) which are communicated with the flow channel (15) in a fluid mode are formed in the main body (1), so that the main body (1) can rotate under the action of water flow;

it is characterized by also comprising

The partition plate (5) is arranged in the main body (1) and divides the interior of the main body (1) into a chamber (16) for storing detergent and the flow channel (15), and a through hole (18) for communicating the flow channel (15) with the chamber (16) is formed in the partition plate (5);

the main body (1) is provided with a feeding port (17) communicated with the chamber (16), and the through hole (18) is positioned on a moving path of the detergent when the main body (1) rotates.

2. The spray arm of claim 1, wherein: the main body (1) is further provided with an outlet (19) which penetrates through the wall thickness of the main body and is communicated with the chamber (16), the detergent moves along a moving path of the detergent when the main body (1) rotates, and the through hole (18) is positioned between the feeding port (17) and the outlet (19).

3. The spray arm of claim 2, wherein: still be equipped with sunshade (2) that can open through-hole (18) or shield in main part (1), be equipped with installation axle (21) in runner (15), sunshade (2) rotate to be installed on installation axle (21), and sunshade (2) remain the trend of opening through-hole (18) all the time under the effect of elastic component (22), under the state that through-hole (18) were opened in sunshade (2), one of them wall of sunshade (2) is facing to the rivers direction.

4. The spray arm of claim 2, wherein: the outlet (19) is in a strip shape, and a sliding block (3) capable of moving along the length direction of the outlet (19) is arranged in the outlet in a sliding mode.

5. The spray arm of claim 4, wherein: slider (3) are the I shape, including sliding part (31), first spacing portion (32) and the spacing portion of second (33), sliding part (31) inlay and establish in export (19) and can slide along export (19), sliding part (31) have the first end that stretches into in cavity (16) and the second end that exposes outside main part (1), the first end of sliding part (31) and the wall counterbalance of cavity (16) are located in first spacing portion (32), the second end of sliding part (31) and the outer wall counterbalance of main part (1) are located in the spacing portion of second (33).

6. The spray arm of claim 2, wherein: the outlet (19) is arranged on the side wall of the main body (1), the bottom wall surface of the chamber (16) is a slope which is inclined from bottom to top towards the direction far away from the water inlet (12), and the upper end of the slope is connected with the outlet (19).

7. The spray arm according to any one of claims 1 to 6, wherein: the rotary cover at the throwing port (17) is provided with a cover plate (4) which can be opened or closed; or the placing opening (17) is detachably covered with a cover plate (4).

8. The spray arm according to any one of claims 1 to 6, wherein: the main part (1) is strip-shaped, the central part of the main part (1) is provided with a water collecting cavity (10), two sides of the water collecting cavity (10) are respectively provided with a flow channel (15) communicated with the water collecting cavity (10), the water inlet (12) is arranged on the bottom wall of the main part (1) and is in fluid communication with the water collecting cavity (10), the spray holes (13) are arranged on the top wall of the main part (1), the number of the cavities (16) is two, the cavities are respectively adjacent to and corresponding to the flow channels (15), and the number of the putting-in openings (17) is two.

9. The spray arm according to any one of claims 1 to 6, wherein: the water collecting device is characterized in that a water collecting cavity (10) is formed in the center of the main body (1), a flow channel (15) communicated with the water collecting cavity (10) is formed in the side of the water collecting cavity (10), a feeding port (141) communicated with the water collecting cavity (10) is further formed in the top wall of the main body (1), and the water inlet (12) is formed in the bottom wall of the main body (1) and is in fluid communication with the water collecting cavity (10).

10. The spray arm of claim 9, wherein: offer open-top on the roof of main part (1) and throw material chamber (14), dog-house (141) are seted up on the diapire of throwing material chamber (14), it can open or close lid (7) with dog-house (141) to throw in material chamber (14) to be equipped with in the chamber (14), the lower part of throwing material chamber (14) is first taper structure (142) of top-down reducing gradually, lid (7) transversely set up and can throw material chamber (14) relatively and reciprocate, the lower part of lid (7) is second taper structure (71) of top-down reducing gradually, first taper structure (142) and second taper structure (71) looks adaptation, the biggest external diameter of lid (7) is less than the internal diameter on throwing material chamber (14) upper portion.

11. The spray arm of claim 3, wherein: the outlet (19) is in a strip shape, and a sliding block (3) capable of moving along the length direction of the outlet (19) is arranged in the outlet in a sliding manner; the water collecting device is characterized in that a water collecting cavity (10) is formed in the central part of the main body (1), a flow channel (15) communicated with the water collecting cavity (10) is formed in the side of the water collecting cavity (10), a feeding port (141) communicated with the water collecting cavity (10) is further formed in the top wall of the main body (1), and the water inlet (12) is formed in the bottom wall of the main body (1) and is in fluid communication with the water collecting cavity (10).

12. A cleaning machine is characterized in that: comprising a tank and a spray arm as claimed in any one of claims 1 to 10, which is rotatably arranged in a washing chamber of the tank.

13. A washing control method of a washing machine comprising a tank, a spray arm as claimed in claim 11 and a water pump for pumping water into a flow channel (15), the washing control method comprising the steps of:

(1) Detergent is put into the washing machine from the putting-in opening (17);

(2) Poking the sliding block (3) to enable the direction of the detergent sprayed out from the outlet (19) to face the tableware with larger dirt degree;

(3) Water is fed, the water pump works, the rotating speed is V1, the main body (1) rotates, the detergent reaches the outlet (19) under the action of centrifugal force generated when the main body (1) rotates, the detergent is sprayed towards the tableware with larger dirt degree, and at the moment, the through hole (18) is in a closed state;

(4) Stopping the water pump to work, and soaking tableware with larger dirt degree by using the detergent;

(5) The water pump works again, the rotating speed is V2, V2 is less than V1, at the moment, the shielding plate (2) closes the through hole (18) under the action of water flow, but detergent cannot reach the outlet (19) under the action of centrifugal force generated when the main body (1) rotates, and at the moment, clear water is sprayed out of the spray arm to rinse and wash tableware;

(6) Stopping the water pump, draining water and then re-feeding water;

(7) The water pump works again, the rotating speed is V3, V3 is less than V2, the through hole (18) is in an open state due to the fact that the water flow intensity is small, detergent reaches the through hole (18) under the action of centrifugal force generated when the main body (1) rotates, flows into the flow channel (15), is mixed with water, and is sprayed into the washing cavity from the spray hole (13) to wash tableware;

(8) The rotating speed of the water pump is increased to V2, and the spray arm sprays clean water to rinse and wash the tableware;

(9) And stopping the water pump to discharge water.

14. The washing control method according to claim 13, further comprising the steps of:

(10) Detergent is put into the washing machine from a feeding port (141);

(11) Water is fed, the water pump works at the rotating speed of V2, and water with detergent dissolved in is sprayed out from the spray holes (13) for cleaning;

(12) And (5) draining water, and finishing the operation.

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