CN111317420A

CN111317420A - Bottom spraying structure of dish-washing machine and dish-washing machine

Info

Publication number: CN111317420A
Application number: CN202010276745.6A
Authority: CN
Inventors: 唐轲; 廖郡芝; 韩家伟; 李翔
Original assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Washing Appliances Manufacturing Co Ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2020-06-23

Abstract

The invention discloses a dishwasher bottom spraying structure and a dishwasher, wherein the dishwasher bottom spraying structure comprises a base, wherein a waterway groove with an upward opening is concavely formed on the base, and a water source interface is arranged on the waterway groove; the sealing cover is fixedly connected with the base and covers the opening of the water path groove, so that the sealing cover is matched with the base to form a lower water supply pipeline, the water source interface is communicated with the water supply pipeline, and the sealing cover is also provided with a spray arm mounting seat communicated with the lower water supply pipeline; and the lower spraying arm is rotatably arranged on the spraying arm mounting seat. The application discloses dish washer bottom sprays structure water route occupation space is little.

Description

Bottom spraying structure of dish-washing machine and dish-washing machine

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to a bottom spraying structure of a dish washing machine and the dish washing machine with the bottom spraying structure of the dish washing machine.

Background

The existing dish washer generally washes and cleans dishes in the dish washer through upper and lower spraying structures, wherein the lower spraying structure plays a main role in the spraying process. In the prior dish washer, a fixed pipeline is usually separately installed in the waterway design of the spraying structure at the bottom of the dish washer, so that the space is occupied.

Disclosure of Invention

The invention mainly aims to provide a bottom spraying structure of a dish washing machine, aiming at avoiding the design of a water path at the bottom from invading the space.

In order to achieve the above object, the present invention provides a bottom spray structure of a dishwasher, comprising:

the water channel groove is concavely formed on the base, and the water channel groove is provided with an upward opening and a water source interface;

the sealing cover is fixedly connected with the base and covers the opening of the water path groove, so that the sealing cover is matched with the base to form a lower water supply pipeline, the water source interface is communicated with the water supply pipeline, and the sealing cover is also provided with a spray arm mounting seat communicated with the lower water supply pipeline; and

the lower spraying arm is rotatably arranged on the spraying arm mounting seat.

This application is through being formed with the water route recess on the base to supply channel under the closing cap spare cooperation through one with base fixed connection forms, from this, the water route directly forms and integrates on the base, can make waterway structure obtain simplifying, and occupation space is little.

Optionally, the base includes base body and sealed muscle, the water route recess is formed at the base body, sealed muscle is located the diapire of water route recess is connected and is followed the lateral wall of water route recess encircles a week, the up end of sealed muscle with the lower surface sealing connection of closing cap spare is in order to form the supply line.

In this embodiment, the sealing ribs are provided, so that the tightness of the sewer pipeline is better, leakage is not easy to generate, and assembly is easier.

Optionally, the spraying structure at the bottom of the dish washer further comprises a slag discharging system installed on the base body, a slag discharging flow channel is formed between the sealing rib and the side wall of the water channel groove, the sealing rib is provided with a flushing hole communicated with the lower water supply channel and the slag discharging flow channel, and the base body is provided with a slag passing hole communicated with the slag discharging system and the slag discharging flow channel.

In the embodiment, the flushing holes can flush the residues in the slag discharging flow channel into the slag discharging system in the using process, so that the cleaning effect can be improved.

The invention also provides a dish washing machine, which comprises the dish washing machine bottom spraying structure, the inner container, the water path assembly and the upper spraying arm, wherein the inner container is covered on the base, the water path assembly comprises the lower water supply pipeline and an upper water supply pipeline which is communicated with the lower water supply pipeline in an intersecting manner, the upper water supply pipeline is arranged on the inner container, and the upper spraying arm is rotatably arranged at the water outlet end of the upper water supply pipeline.

Optionally, a lower water inlet communicated with the lower water supply pipeline and an upper water inlet communicated with the upper water supply pipeline are formed at the intersection of the lower water supply pipeline and the upper water supply pipeline;

the dishwasher further comprises a flow distribution assembly, the flow distribution assembly comprises a driving piece and a flow distribution piece, the driving piece can drive the flow distribution piece to rotate, the flow distribution piece extends into the intersection of the lower water supply pipeline and the upper water supply pipeline, and the flow distribution piece can simultaneously open the lower water inlet and the upper water inlet or block the lower water inlet and one of the upper water inlets when rotating.

According to the technical scheme, the flow distribution assembly is arranged in the dish washing machine, the flow distribution assembly is provided with the flow distribution sheet capable of extending into the waterway assembly, and the lower water inlet and the upper water inlet are opened and closed through the flow distribution sheet, so that pressure regulation of the dish washing machine in multiple cleaning modes is realized, the washing effect of the dish washing machine is improved, and the dish washing machine has the advantages of simple structure and low cost.

The dishwasher also comprises a middle spraying part, the middle spraying part is in butt joint communication with the upper water supply pipeline, and the middle spraying part is positioned between the lower spraying arm and the upper spraying arm.

In the embodiment, the middle spraying piece is arranged, so that the upper part, the middle part and the lower part in the dish washing machine are sprayed and cleaned in a three-dimensional manner, and the washing effect of tableware in the dish washing machine is better.

Optionally, the middle spray piece is of a flat structure and extends along the inner wall surface of the inner container.

In the embodiment, for the dish washing machine with larger height dimension, larger left-right length dimension and smaller front-back depth dimension, the middle spraying piece is designed to be in a flat structure, so that the dish washing machine is easy to assemble, occupies small space and realizes three-dimensional spraying and cleaning of the dish washing machine.

Optionally, a positioning structure matched with each other is arranged between the middle spraying piece and the inner container.

In this embodiment, the positioning structure secures the shower attachment structure against deformation.

Optionally, a fixing structure matched with each other is arranged between the upper water supply pipeline and the inner container.

In this embodiment, the water supply line connection structure is stabilized by the national fixation structure.

Optionally, at least two lower water supply pipelines are provided, the number of the lower spray arms corresponds to the number of the lower water supply pipelines, and the lower spray arms are arranged at intervals in the left and right length direction of the inner container.

In this embodiment, for a table type dishwasher with a large height, a large left-right length and a small front-back depth, the two lower spray arms are arranged at intervals in the left-right length direction, so that dead angles in the cleaning process can be reduced, and the cleaning efficiency is improved.

Optionally, the water source interface is opened on one of the lower water supply pipelines.

In this embodiment, the water source interface is provided in a lower water supply line, the structural design can be simplified, and various spray modes can be realized.

Optionally, both ends on the length direction of the lower spray arm are provided with driving holes, the opening direction of the driving holes is acute-angle-set with the rotating plane of the lower spray arm, and the driving force generated when the driving holes at both ends on the length direction of the lower spray arm spray is opposite in direction.

In this embodiment, through increasing spray arm driving force down, like this under the lower circumstances of water pressure, spray arm also can rotate fast down, promotes the cleaning efficiency.

Optionally, the dishwasher further comprises a slag discharge system installed on the base, the slag discharge system is located between the two lower spray arms, and the lower spray arms are further provided with slag collecting holes with openings facing the slag discharge system.

In this embodiment, the food waste is pushed into the slag discharge system by the slag collecting hole, so that the cleaning efficiency can be improved.

Optionally, the lower water supply pipeline is further provided with a flushing hole with an opening facing the slag discharge system, and the flushing hole can be opened or closed when the splitter vane rotates.

In this embodiment, the flushing holes assist in flushing food waste into the extractor system, which may further improve cleaning efficiency.

Optionally, the splitter plate is the arc setting, the inner wall of water route subassembly be formed with the arc of splitter plate adaptation supports the face.

In the embodiment, the flow dividing assembly is simple in structure and good in sealing performance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

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

FIG. 2 is a schematic view of the bottom spray configuration of the dishwasher of FIG. 1 with the lower spray arms removed;

FIG. 3 is a schematic view of the bottom spray configuration of the dishwasher of FIG. 1 with the lower spray arms and the closure removed;

FIG. 4 is a schematic view of a further configuration of the bottom spray configuration of the dishwasher of FIG. 1 with the lower spray arm and closure member removed;

FIG. 5 is a schematic structural view from the front perspective of a part of the structure of a dishwasher according to an embodiment of the present invention;

FIG. 6 is a schematic view showing an internal structure of the dishwasher of FIG. 5;

FIG. 7 is a schematic top view of the lower spray arm of the dishwasher of FIG. 5;

FIG. 8 is a schematic view of the structure of FIG. 6 with the top water supply pipe removed;

FIG. 9 is a schematic diagram of the internal structure of the structure of FIG. 8;

FIG. 10 is a schematic diagram of the structure of FIG. 9 from yet another perspective;

FIG. 11 is a schematic view of the arrangement of FIG. 8 with the flow divider assembly assembled;

FIG. 12 is a schematic structural view of the flow diversion assembly of FIG. 11;

FIG. 13 is a schematic view of the structure of FIG. 11 from a further perspective, in which both the lower inlet and the upper inlet are open;

FIG. 14 is a schematic structural view of the structure of FIG. 11 from a further perspective, in which the lower inlet and the upper inlet on the right side are in communication;

FIG. 15 is a schematic structural view of the structure of FIG. 11 from a further perspective, in which the lower inlet and the upper inlet on the right side are in communication;

FIG. 16 is a schematic view of the structure of FIG. 11 from a further perspective, showing the upper inlet shut off;

FIG. 17 is a schematic structural view of a further perspective of the structure of FIG. 11, showing the upper inlet shut off;

FIG. 18 is a schematic structural view of the structure of FIG. 11 from a further perspective, in which the lower right inlet is blocked;

fig. 19 is a schematic view of the structure of fig. 11 from a further perspective, in which the lower right inlet is blocked.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Casing (CN)	122	Pipeline socket
110	Base seat	130	Inner container
				110a	Base body		200	Waterway assembly
110b	Sealing rib	210	Lower water supply pipeline
				110c	Deslagging runner		220	Upper water supply pipeline
110d	Slag passing hole	300	Lower spray arm
				111	Water source interface	310	Drive hole
112	Waterway groove	320	Cleaning hole
				112a	Lower water inlet	330	Dead angle flushing hole
112b	Upper water inlet	400	Upper spray arm
				113	Mounting hole	500	Shunt assembly
114	Flushing hole	510	Driving member
				115	Arc-shaped abutting surface	520	Splitter plate
120	Closure member	600	Middle spray part
				121	Spray arm mounting base	700	Slag discharging system

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a bottom spraying structure of a dishwasher. In the embodiment of the invention, the bottom spraying structure of the dishwasher comprises a base 110, a cover 120 and a lower spraying arm 300, wherein the base 110 is concavely provided with a water channel groove 112 with an opening, and is provided with a water source interface 111, the cover 120 is fixedly connected with the base 110 and closes the opening of the water channel groove 112, so that the cover 120 is matched with the base 110 to form a lower water supply pipeline 210, the water source interface 111 is communicated with the water supply pipeline 210, the cover 120 is further provided with a spraying arm mounting seat 121 communicated with the lower water supply pipeline 210, the lower spraying arm 300 is rotatably mounted on the spraying arm mounting seat 121, and cleaning water flows into the lower water supply pipeline 210 from the water source interface 111 and is sprayed out by the lower spraying arm 300 through the spraying arm mounting seat 121.

In the present application, the opening of the waterway groove 112 is disposed upward, and the cover member 120 is fixedly connected to the upper surface of the base 110, however, in other embodiments, the opening of the waterway groove 112 may also be disposed downward, and the cover member 120 is fixedly connected to the lower surface of the base 110, in this case, the spray arm mounting seat 121 is mounted on the upper surface of the base 121. The cover member 120 has a plate shape and an extended shape adapted to the waterway groove 112, and the cover member 120 and the base 110 may be fixed by welding or by gluing.

In some embodiments, the base 110 includes a base body 110a and a sealing rib 110b, the waterway groove 112 is formed in the base body 110a, the sealing rib 110b is disposed on the bottom wall of the waterway groove 112 and surrounds the waterway groove 112 along the sidewall, and the upper end surface of the sealing rib 110b is connected with the lower surface of the cover 120 in a sealing manner to form the water supply pipeline 210. In the present application, it is preferable that the base 110 and the cover member 120 are fixed by welding, that is, the upper end surface of the sealing rib 110b and the cover member 120 can be fixed by welding in a hot melting manner, and the edge of the cover member 120 abuts against the side wall of the water channel groove 112, so that the lower water supply pipeline 210 is surrounded by the cover member 120, the sealing rib 110b and the base body 110a, and in such an arrangement, the welded sealing structure is not firm due to the direct connection between the cover member 210 and the base body 110a, and the warping deformation occurs, so that the sealing performance of the lower water supply pipeline 210 is ensured, and the structure at the welding position is not exposed, and is not directly washed by the washing water sprayed from the lower spray arm 300, so that the connection structure is not easily damaged in the long-term use process.

In summary, the present invention forms the waterway groove 112 on the base 110 and forms the lower water supply pipeline 210 by matching with the cover member 120 fixedly connected with the base 110, so that the waterway is directly formed and integrated on the base 110, the waterway structure can be simplified and the occupied space is small.

Further, the spraying structure at the bottom of the dishwasher further comprises a slag discharging system 700 mounted on the base body 110a, a slag discharging flow channel 110c is formed between the sealing rib 110b and the side wall of the water channel groove 112, the sealing rib 110b is provided with a flushing hole 114 communicating the lower water supply pipeline 210 and the slag discharging flow channel 110c, and the base body 110a is provided with a slag passing hole 110d communicating the slag discharging system 700 and the slag discharging flow channel 110 c. As can be seen from the above, in order to enhance the structural stability of the entire lower water supply pipeline 210, the sealing structure may not be directly disposed between the cover member 120 and the base body 110a, and a gap may be allowed between the edge of the cover member 120 and the base body 110a, so that the flushing hole 114, the slag discharging flow channel 110c, and the slag passing hole 110d are further disposed, and by such an arrangement, during the use process, the food waste entering the slag discharging flow channel 110c may be pushed by the water flow flushed from the flushing hole 114 and discharged to the slag discharging system 700 through the slag passing hole 110d, so that the cleaning effect may be further enhanced.

Referring to fig. 5 to 12, the present invention also provides a dishwasher including a housing 100, a waterway assembly 200, a lower spray arm 300, an upper spray arm 400 and a diversion assembly 500.

The casing 100 includes the base 110, the inner container 130 covering the base 110, and a casing (not shown) surrounding the outer portion of the inner container 130, wherein the base 110 and the inner container 130 are matched to form a cleaning cavity (not shown), a basket rack (not shown) for placing tableware is further disposed in the cleaning cavity, at least two basket racks can be stacked in the cleaning cavity in the up-down direction of the dishwasher of the application, wherein an opening is formed in the front side of the cleaning cavity, and a door body (not shown) capable of opening and closing the opening is further mounted on the casing.

The water path assembly 200 comprises the lower water supply pipeline 210 and an upper water supply pipeline 220 communicated with the lower water supply pipeline 210 in an intersecting manner, the upper water supply pipeline 220 is installed on the inner container 130, and a lower water inlet 112a communicated with the lower water supply pipeline 210 and an upper water inlet 112b communicated with the upper water supply pipeline 220 are respectively formed at the intersection of the lower water supply pipeline 210 and the upper water supply pipeline 220; it is understood that the dishwasher of the present application further has a motor and a water pump installed at the base 110, the water pump pumping wash water from the water source port 111 into the waterway assembly 200.

The lower spray arm 300 is located at the bottom of the cleaning cavity, the upper spray arm 400 is located at the upper part of the cleaning cavity, the lower spray arm 300 is rotatably installed at the water outlet end of the lower water supply pipeline 210 (namely, the spray arm installation seat 121), the upper spray arm 400 is rotatably installed at the water outlet end of the upper water supply pipeline 220, and the lower spray arm 300 and the upper spray arm 400 can be in a straight shape or a cross shape. In the structure of the dishwasher, the combination of the base 110, the cover 120 and the lower spray arm 300 adopts the scheme of the bottom spray structure of the dishwasher in the above content, and in the dishwasher, the upper surface of the cover 120 is further provided with a pipeline socket 122 besides a spray arm mounting seat 121 used as a water outlet end for mounting the lower spray arm 300, the upper water supply pipeline 220 is a pipe body structure mounted on the inner wall of the inner container 130, and the lower end of the upper water supply pipeline 220 is connected to the pipeline socket 122 in an inserting manner.

The flow dividing assembly 500 includes a driving member 510 and a dividing plate 520, the driving member 510 can drive the dividing plate 520 to rotate, the dividing plate 520 extends into the waterway assembly 200 and is located at the intersection of the lower water supply pipeline 210 and the upper water supply pipeline 220, and the dividing plate 520 can simultaneously open the lower water inlet 112a and the upper water inlet 112b or can block one of the lower water inlet 112a and the upper water inlet 112b when rotating. Wherein, the driving piece 510 of this application is driving motor, and the direct fixed connection of splitter plate 520 is on driving motor's output shaft, and driving motor fixes on base body 110a to still seted up the intercommunication on base body 110a the mounting hole 113 of water route recess 112, mounting hole 113 are just in time located the intersection of lower water inlet 112a and last inlet 112b, and driving motor's output shaft and splitter plate 520 are stretched into in the water route recess 112 by mounting hole 113. The driving motor thus rotates the dividing plate 520 to have a state of simultaneously opening the lower water inlet 112a and the upper water inlet 112b and a state of blocking one of the lower water inlet 112a and the upper water inlet 112 b. Of course, in other embodiments, the driving member 510 may be a combination of a motor and a magnetic disk, the magnetic disk may include a driving magnetic disk and a driven magnetic disk, the driven magnetic disk is located in the waterway groove 112, the shunting plate 520 is fixedly installed on the driven magnetic disk, the driving magnetic disk is fixedly connected to the output shaft of the motor, and the installation hole 113 may be eliminated by this driving scheme.

According to the technical scheme of the invention, the flow dividing assembly 500 is arranged in the dishwasher, the flow dividing assembly 500 is provided with the flow dividing sheet 520 which can extend into the waterway assembly 200, and the lower water inlet 112a and the upper water inlet 112b are opened and closed through the flow dividing sheet 520, so that the pressure regulation of the dishwasher in various cleaning modes is realized, the washing effect of the dishwasher is improved, and the dishwasher has the advantages of simple structure and low cost.

In order to achieve a better cleaning effect of the dishwasher of the present application, the dishwasher further includes a middle spray part 600, wherein the middle spray part 600 is in butt communication with the upper water supply pipeline 220, and the middle spray part 600 is located between the lower spray arm 300 and the upper spray arm 400. The middle spray piece 600 is of a flat structure and extends along the inner wall surface of the inner container 130, the middle spray piece 600 is in a linear strip shape and is fixedly connected with the water supply pipeline 220, and the middle spray piece 600 can also be in a cross shape. Through above design for to the great dish washer of the length dimension of fore-and-aft direction degree of depth size less, left and right sides direction, then more conveniently install because of well spray 600 volume is less occupies for a short time, well spray 600 is located inner bag 130 middle part, and spray arm 400 and spray arm 300 down in the cooperation realize washing the tableware three-dimensional in inner bag 130 in the use, and the cleaning performance is good. For the stability of the whole structure, the middle spray part 600 and the inner container 130 are provided with a mutually matched positioning structure. The upper water supply pipeline 220 and the inner container 130 are provided with mutually matched fixing structures. Wherein, location structure and fixed knot construct all can be buckle connection structure or screw connection structure, and it has location structure of mutually supporting to make the well spray arm non-deformable warpage of rectangular form to spray in this application between 600 and the inner bag 130 setting, and the fixed knot structure between water supply line 220 and the inner bag 130 setting can adopt buckle connection structure to make its simple to operate and the structure firm.

In order to further enhance the cleaning effect, at least two lower spray arms 300 are provided in the lower water supply line 210, the number of the lower spray arms 300 corresponds to the number of the lower water supply lines 210, and the lower spray arms 300 are spaced apart from each other in the left and right longitudinal directions of the inner container 130. The quantity of the lower spray arm 300 that shows in this application figure is two, and through with two lower spray arms 300 the interval arrangement makes the structure of this application less to the depth dimension of fore-and-aft direction about inner bag 130 on the length direction, about the great dish washer of length dimension on the length direction, when realizing that the solid sprays the washing, it is also less to wash the dead angle, and the cleaning performance is better.

In the present application, two lower water supply lines 210 are installed on the base 110, and the water source connector 111 is opened on one of the water supply lines 210. The water supply port 111 shown in the drawing is opened to the right side sewer pipe 210, and by this design, the water path design can be simplified, and the overall structure can be simplified. It should be noted that since the washing water flows from the right lower water supply pipe 210 to other pipes, the lower water inlet 112a of the right lower water supply pipe 210 is strictly a lower water outlet, and since the left lower water supply pipe 210 and the right lower water supply pipe 210 are symmetrically designed, the following description is provided for the water inlet 112a for convenience of description. In combination with the above, the present application controls the lower water inlet 112a and the upper water inlet 112b to be fully communicated and partially communicated by the driving member 510 driving the splitter plate 520 to rotate, so as to achieve different cleaning modes and achieve the following processes of water pressure regulation:

referring to fig. 11 and 12, firstly, the splitter plate 520 of the present application is arc-shaped, and the inner wall of the waterway assembly 200 is formed with an arc-shaped abutting surface 115 adapted to the splitter plate 520, and further, the two lower water inlets 112a and the upper water inlet 112b are designed to surround the mounting hole 113 at intervals, and by such a design, the splitter plate 520 is arc-shaped, and when it rotates, the upper water inlet 112b and the lower water inlet 112a can be opened and closed correspondingly, so that the structure is simple, and the sealing performance is high. In fig. 9, the diversion sheet 520 abuts against the inner wall surface of the water path assembly 200 opposite to the upper water inlet 112b, and the diversion sheet 520 does not block the upper water inlet 112b and the lower water inlet 112a, so that the cleaning water can enter one of the lower water supply pipelines 210 from the water source interface 111 and then enter the other one of the lower water supply pipelines 210 and the upper water supply pipeline 220, and thus the lower spray arm 300, the upper spray arm 400 and the middle spray piece 600 can spray, and at this time, a three-dimensional washing state is achieved.

And when in the three-dimensional state of washing, because all water routes are the conducting state, so water pressure may be relatively low, cause as the lower spray arm 300 working condition of main spray component can't reach the best, this application still improves the design to the hole for water spraying of lower spray arm 300, please refer to fig. 6 and fig. 7, wherein both ends on the length direction of lower spray arm 300 all are equipped with drive hole 310, the trompil direction of drive hole 310 and the rotation plane of lower spray arm 300 are the acute angle setting, and the driving force direction that produces when being located the drive hole 310 at both ends on the length direction of lower spray arm 300 sprays is opposite, can understand, the hole for water spraying on spray arm 300 still includes a plurality of washing holes 320 under this application, a plurality of washing holes 320 interval sets up between two drive holes 310. In fig. 7, the direction indicated by the arrow is a water spraying direction or an opening direction of the hole, the opening direction of the driving hole 310 is arranged at an acute angle with respect to the rotation plane of the lower spray arm 300, and it can be understood that the opening direction of the driving hole 310 is spatially inclined upward, so that during the water spraying process of the driving hole 310, the reaction force generated during the water spraying process to the lower spray arm 300 is inclined downward, the reaction force after the force decomposition has a rotation plane force perpendicular to the lower spray arm 300 and a tangential force tangential to the circle where the driving hole 310 is located, the thrust generated during the spraying process of the driving holes 310 located at both ends in the length direction of the lower spray arm 300 is a tangential force, the tangential force directions of the driving holes 310 at both ends in the present application are opposite, that is, during the rotation process of the lower spray arm 300, two tangential forces are superimposed to push the lower spray arm 300 to rotate, and the driving hole 310 is located at the end, the moment arm is also the largest.

Referring to fig. 14 and 15, in this embodiment, the driving member 510 drives the diversion piece 520 to rotate and block the lower water inlet 112a of the lower water supply line 210 on the left side. The cleaning water enters from the right lower water supply pipe 210 and cannot enter the left lower water supply pipe 210, and then enters the upper water supply pipe 220 through the upper water inlet 112b, so that the upper spray arm 400, the middle spray member 600 and the left lower spray arm 300 can spray.

Referring to fig. 16 and 17, in this embodiment, the driving member 510 drives the diversion piece 520 to rotate and block the upper water inlet 112b, both the lower water supply lines 210 are conducted, and the washing water is sprayed from the two lower spray arms 300, in this mode, the water pressure is relatively high, and the washing can be performed with emphasis on the dishes placed in the lower layer.

Referring to fig. 18 and 19, in this embodiment, the driving member 510 drives the diversion piece 520 to rotate and block the lower water inlet 112a of the right lower water supply pipe 210, so that the washing water can only enter the right lower water supply pipe 210 through the water source connector 111 and be sprayed out by the right lower spray arm 300, and in this mode, the water pressure is highest, and the dishes placed in the lower layer can be strongly washed.

The dishwasher of the application realizes water pressure regulation through the structural design and has multiple cleaning modes and a good cleaning effect. Further, referring to fig. 7 again, the lower spray arm 300 is further provided with a blind spot washing hole 330 having an opening facing outward, and the blind spot washing hole 330 is located outside the driving hole 310 or at an end of the lower spray arm 300 with respect to the driving hole 310. This application still can be provided with the powder box that washes the dishes on the door body of dish washer, can spray the washing water to the powder box that washes the dishes through dead angle flushing hole 330 for the powder intensive mixing that washes the dishes dissolves, and dead angle flushing hole 330 also can provide certain helping hand for the rotation of spray arm 300 down, also can wash the corner position in inner bag 130, avoids the residue to be detained, has further promoted the flushing effect.

Further, the diverter blade 520 can open or close the flushing port 114 when rotated. Wherein, the flushing hole 114 is closed by the dividing plate 520 in the three-dimensional flushing mode, in the case that the water path is fully conducted, and in the case that the water supply line 220 is conducted, so as to prevent the water pressure from being reduced.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a dishwasher bottom sprays structure which characterized in that dishwasher bottom sprays the structure and includes:

the base is concavely provided with a waterway groove with an opening and is provided with a water source interface;

the lower spraying arm is rotatably arranged on the spraying arm mounting seat.

2. The bottom spray structure of a dishwasher according to claim 1, wherein the base includes a base body and a sealing rib, the water channel groove is formed on the base body, the sealing rib is disposed on a bottom wall of the water channel groove and surrounds a circumference along a side wall of the water channel groove, and an upper end surface of the sealing rib is connected with a lower surface of the cover member in a sealing manner to form the water supply pipeline.

3. The bottom spray structure of a dishwasher according to claim 2, wherein the bottom spray structure further comprises a slag discharge system mounted on the base body, a slag discharge flow channel is formed between the sealing rib and the side wall of the water channel groove, the sealing rib is provided with a flushing hole communicating the lower water supply channel and the slag discharge flow channel, and the base body is provided with a slag passing hole communicating the slag discharge system and the slag discharge flow channel.

4. A dishwasher, comprising:

the bottom spray structure of dishwasher according to any of claims 1 to 3;

the inner container is covered on the base;

the water path assembly comprises a lower water supply pipeline and an upper water supply pipeline which is communicated with the lower water supply pipeline in an intersecting manner, and the upper water supply pipeline is arranged in the inner container;

and the upper spraying arm is rotatably arranged at the water outlet end of the upper water supply pipeline.

5. The dishwasher of claim 4, wherein a junction of the lower water supply line and the upper water supply line is formed with a lower water inlet communicating with the lower water supply line and an upper water inlet communicating with the upper water supply line;

6. The dishwasher of claim 4 further comprising a middle spray, the middle spray in abutting communication with the upper water supply line, the middle spray positioned between the lower spray arm and the upper spray arm.

7. The dishwasher of claim 6, wherein the middle spray member has a flat structure and extends along an inner wall surface of the inner tub.

8. The dishwasher of claim 6, wherein the middle spray part and the inner container are provided with mutually matched positioning structures;

and/or a fixing structure matched with each other is arranged between the upper water supply pipeline and the inner container.

9. The dishwasher according to any one of claims 5 to 8, wherein the lower water supply lines are provided with at least two, the number of the lower spray arms corresponds to the number of the lower water supply lines, the water source connection is opened to one of the lower water supply lines, and the lower water inlet is formed between the lower water supply lines.

10. The dishwasher of claim 9, wherein the lower spray arms are spaced apart in the left and right longitudinal directions of the tub.

11. The dishwasher of claim 9, wherein the lower spray arm is provided at both ends in a length direction thereof with driving holes, the driving holes are formed at an acute angle to a rotation plane of the lower spray arm, and the driving holes at both ends in the length direction of the lower spray arm are opposite in direction of the pushing force generated when they are sprayed.