CN109259700B - Nozzle, spray arm for dish washing machine and dish washing machine - Google Patents
Nozzle, spray arm for dish washing machine and dish washing machine Download PDFInfo
- Publication number
- CN109259700B CN109259700B CN201811177531.2A CN201811177531A CN109259700B CN 109259700 B CN109259700 B CN 109259700B CN 201811177531 A CN201811177531 A CN 201811177531A CN 109259700 B CN109259700 B CN 109259700B
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- CN
- China
- Prior art keywords
- cavity
- water outlet
- nozzle
- cavitation
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000007921 spray Substances 0.000 title claims abstract description 32
- 238000004851 dishwashing Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 230000010355 oscillation Effects 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000002925 chemical effect Effects 0.000 abstract description 2
- 230000000704 physical effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4278—Nozzles
- A47L15/428—Rotary nozzles
Abstract
The invention provides a nozzle, a spray arm for a dish washing machine and the dish washing machine. The nozzle comprises a nozzle body, wherein a water inlet and a water outlet are respectively arranged at two ends of the nozzle body, and a cavitation flow structure is arranged in the nozzle body, so that cavitation water jet is formed at the water outlet; the cavitation flow structure comprises a first cavity and a second cavity which are communicated with each other, the water inlet is communicated with the first cavity, the water outlet is communicated with the second cavity, the section specification of the water outlet is far smaller than that of the second cavity, and the section specification of the second cavity is smaller than that of the first cavity; the sections of the first cavity and the second cavity are of a stepped gradual reduction structure and a continuous reduction structure or only the section of the second cavity is of a continuous reduction structure; the device also comprises a third cavity and an oscillation cavity. According to the invention, the cavitation flow structure is arranged, so that when water flow with cavitation bubbles is sprayed to the surface of tableware, the cavitation bubbles carried by the water flow with cavitation bubbles are broken, a series of physical and chemical effects are generated at the moment of breaking the cavitation bubbles, and pollutants can be thoroughly flushed.
Description
Technical Field
The invention relates to the technical field of dish washers, in particular to a nozzle capable of generating cavitation water jet effect, a spray arm for the dish washer and the dish washer.
Background
At present, dish washers in the market drive the spray arm to rotate under the recoil action of water flow, and water is sprayed to the surface of tableware through water outlets in different directions on the spray arm to wash, so that the washing can be completely carried out by means of dish washing powder/liquid.
The applicant found that the prior art has at least the following technical problems:
the washing mode of the existing dish washing machine can not wash away part of tableware residues (such as steamed eggs) which are difficult to wash.
Disclosure of Invention
The invention aims to provide a nozzle capable of generating cavitation water jet effect, a spray arm for a dish washer and the dish washer, so as to solve the technical problem that part of stubborn pollutants in the dish washer in the prior art cannot be thoroughly cleaned.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a nozzle, which comprises a nozzle body, wherein a water inlet and a water outlet are respectively arranged at two ends of the nozzle body, and a cavitation flow structure is arranged in the nozzle body, so that cavitation water jet flow is formed at the water outlet.
As a further improvement of the invention, the cavitation flow structure comprises a first cavity and a second cavity which are communicated with each other, wherein the section specification of the second cavity is smaller than that of the first cavity; the water inlet is communicated with the first cavity, the water outlet is communicated with the second cavity, and the section specification of the water outlet is far smaller than that of the second cavity.
As a further improvement of the invention, the cross sections of the first cavity and the second cavity are of stepped gradual reduction structures.
As a further improvement of the invention, the cross section of the first cavity and the second cavity is of a continuous reduced structure.
As a further improvement of the invention, the second cavity section is of a continuously reduced structure.
As a further improvement of the invention, the water outlet device further comprises a third cavity arranged between the second cavity and the water outlet, wherein the third cavity is communicated with the second cavity through a first through hole, the water outlet is communicated with the third cavity, the section specification of the water outlet is not smaller than that of the first through hole, and the sections of the first through hole and the water outlet are far smaller than that of the third cavity.
As a further improvement of the invention, the water-saving device further comprises an oscillating cavity arranged between the second cavity and the water outlet, wherein the oscillating cavity is communicated with the second cavity through a second through hole, one side of the oscillating cavity communicated with the water outlet is of a convex structure protruding inwards, the section specification of the water outlet is not more than that of the second through hole, and the sections of the water outlet and the second through hole are far less than that of the first cavity and the oscillating cavity.
As a further improvement of the invention, the projection structure is an arc-shaped projection.
As a further improvement of the invention, the projection structure is a conical projection.
The invention also provides a spray arm for the dish washer, which comprises a spray arm body, wherein a plurality of spray nozzles are arranged on the spray arm body.
As a further improvement of the invention, the water outlets of all the nozzles on the spray arm body are oriented differently.
The invention also provides a dish washer which comprises the spray arm.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the cavitation flow structure capable of generating cavitation water jet flow is arranged in the nozzle, the nozzle with the structure can form cavitation water jet flow at the water outlet, when the spray arm provided with the nozzle is used for spraying water flow with cavitation bubbles onto the surface of tableware, the cavitation bubbles carried by the water flow with cavitation bubbles are broken, a series of physical and chemical effects are generated at the moment of breaking the cavitation bubbles, pollutants on the surface of the tableware can be washed clean more thoroughly, and even the effect of cleaning the tableware without using dishwashing powder/liquid can be achieved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a first embodiment of a nozzle provided by the present invention;
FIG. 2 is a schematic cross-sectional view of a second embodiment of a nozzle provided by the present invention;
FIG. 3 is a schematic cross-sectional view of a third embodiment of a nozzle provided by the present invention;
fig. 4 is a schematic structural view of a spray arm provided by the present invention.
In the figure 1, a first cavity; 2. a second cavity; 3. a third cavity; 4. a first through hole; 5. an oscillation cavity; 6. a water inlet; 7. a water outlet; 8. a second through hole; 100. a nozzle; 200. and the spray arm body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The invention provides a nozzle, which comprises a nozzle body, wherein a water inlet 6 and a water outlet 7 are respectively arranged at two ends of the nozzle body, and a cavitation flow structure is arranged in the nozzle body, so that cavitation water jet flow is formed at the water outlet 7.
Example 1:
as an alternative embodiment, the cavitation flow structure comprises a first cavity 1 and a second cavity 2 which are communicated with each other, a water inlet 6 is communicated with the first cavity 1, a water outlet 7 is communicated with the second cavity 2, the section specification of the water outlet 7 is far smaller than that of the second cavity 2, and the section specification of the second cavity 2 is smaller than that of the first cavity 1. In an alternative embodiment, the water inlet 6, the water outlet 7, the first cavity 1 and the second cavity 2 are all coaxially arranged, and in this embodiment, the structure of the specification change between the first cavity 1 and the second cavity 2 has three different technical schemes, which are respectively:
scheme 1:
as shown in fig. 1, fig. 1 is a schematic cross-sectional view of a first embodiment of a nozzle, in this embodiment, a cross-section between a first cavity 1 and a second cavity 2 is a stepped stepwise decreasing structure. The first cavity 1 is rectangular in cross section, and the second cavity 2 is rectangular in cross section.
Scheme 2:
the cross section between the first cavity 1 and the second cavity 2 is a continuously decreasing structure (this structure is not shown in the figures). The cross section of the first cavity 1 is conical, the cross section of the second cavity 2 is also conical, and the cross section specification of the joint of the first cavity 2 and the first cavity 1 is the same.
Scheme 3:
as shown in fig. 3, fig. 3 is a schematic cross-sectional view of a third embodiment of the nozzle, in this embodiment, the cross-section of the second cavity 2 is in a continuously reduced structure, as shown in fig. 3, the cross-section of the second cavity 2 is in a conical shape, the cross-section specification of the first cavity 1 is unchanged, the cross-section of the first cavity 1 is rectangular, and the cross-section specification of the first cavity 1 is the same as the maximum cross-section specification of the second cavity 2.
Example 2:
embodiment 2 differs from embodiment 1 only in that, as shown in fig. 2, the cavitation flow structure further includes a third cavity 3 disposed between the second cavity 2 and the water outlet 7, the third cavity 3 is communicated with the second cavity 2 through the first through hole 4, in the present invention, the cross-section specification of the third cavity 3 is slightly larger than that of the second cavity 2, the water outlet 7 is communicated with the third cavity 3, preferably, the cross-section specification of the third cavity 3 is coaxially disposed with the water outlet 7, the first through hole 4 and the first cavity 1, the cross-section specification of the water outlet 7 is not smaller than that of the first through hole 1, and the cross-sections of the first through hole 4 and the water outlet 7 are both far smaller than that of the third cavity 3.
Example 3:
embodiment 3 differs from embodiment 1 only in that, as shown in fig. 3, the device further comprises an oscillating cavity 5 arranged between the second cavity 2 and the water outlet 7, the oscillating cavity 5 is communicated with the second cavity 2 through a second through hole 8, in the invention, the section specification of the oscillating cavity 5 is larger than that of the second cavity 2, one side of the oscillating cavity 5 communicated with the water outlet 7 is of an inward protruding structure, preferably, the oscillating cavity 5, the water outlet 7, the second through hole 8 and the first cavity 1 are all coaxially arranged, the section specification of the water outlet 7 is not larger than that of the second through hole 8, and the sections of the water outlet 7 and the second through hole 8 are both far smaller than those of the first cavity 1 and the oscillating cavity 5.
In this embodiment, the protrusion structure may be an arc-shaped protrusion as shown in fig. 3; or may be a conical protrusion.
As shown in fig. 4, the present invention further provides a spray arm for a dishwasher, comprising a spray arm body 200, and a plurality of spray nozzles 100 are provided on the spray arm body 200.
As an alternative embodiment, the water outlets 7 of all nozzles 100 located on the spray arm body 200 are oriented differently.
The invention also provides a dish washer comprising the spray arm.
The invention is based on the existing structure, and designs 3 structures for the simple nozzle, each structure can be independently used, as shown in figures 1, 2 and 3. When the stable water flow passes through the nozzle structure in the embodiment 1 and the nozzle structure in the embodiment 2, the water flow forms a reduced section in the inner cavity of the nozzle to generate pressure oscillation, so that the jet flow ejected from the water outlet of the nozzle becomes intermittent vortex flow, and cavitation is generated by the jet flow; when the water flow passes through the nozzle structure in the embodiment 3, as the water flow is contracted by the second cavity 2, the jet boundary is disturbed to generate a series of discrete vortex rings with gradually enlarged size, and when the jet continues to reach the oscillation cavity 5, the discrete vortex rings collide in the oscillation cavity 5 to generate pressure oscillation waves, induce new vortex pulsation, generate strong cavitation and form self-excited pulse cavitation jet; the spray nozzle with the structure is applied to the spray arm of the dish washer, so that when water flows with cavitation bubbles sprayed from the spray arm and having different directions are sprayed to the surface of the tableware, the carried cavitation bubbles are broken, a series of physical and chemical actions are generated at the moment of breaking the cavitation bubbles, pollutants on the surface of the tableware can be thoroughly washed, and even the effect of cleaning the tableware without using dishwashing powder/liquid can be achieved.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A nozzle, characterized in that: the cavitation water jet nozzle comprises a nozzle body, wherein a water inlet (6) and a water outlet (7) are respectively arranged at two ends of the nozzle body, and a cavitation flow structure is arranged in the nozzle body, so that cavitation water jet flow is formed at the water outlet (7);
the cavitation flow structure comprises a first cavity (1) and a second cavity (2) which are communicated with each other, and the section specification of the second cavity (2) is smaller than that of the first cavity (1); the water inlet (6) is communicated with the first cavity (1), the water outlet (7) is communicated with the second cavity (2), and the section specification of the water outlet (7) is far smaller than that of the second cavity (2);
the nozzle further comprises a third cavity (3) arranged between the second cavity (2) and the water outlet (7), the third cavity (3) is communicated with the second cavity (2) through a first through hole (4), the water outlet (7) is communicated with the third cavity (3), the section specification of the water outlet (7) is not less than that of the first through hole (4), and the sections of the first through hole (4) and the water outlet (7) are far less than that of the third cavity (3);
or the nozzle further comprises an oscillating cavity (5) arranged between the second cavity (2) and the water outlet (7), the oscillating cavity (5) is communicated with the second cavity (2) through a second through hole (8), one side of the oscillating cavity (5) communicated with the water outlet (7) is of a convex structure protruding inwards, and the section specification of the water outlet (7) is not more than that of the second through hole (8); and the sections of the water outlet (7) and the second through hole (8) are far smaller than the section specifications of the first cavity (1) and the oscillating cavity (5).
2. The nozzle of claim 1, wherein: the sections of the first cavity (1) and the second cavity (2) are of a stepped gradual shrinkage structure or a continuous shrinkage structure.
3. The nozzle of claim 1, wherein: the section of the second cavity (2) is of a continuous shrinkage structure.
4. The nozzle of claim 1, wherein: the protruding structure is an arc-shaped protruding or a conical protruding.
5. A spray arm for a dishwasher, characterized in that: comprising a spray arm body (200), said spray arm body (200) being provided with a plurality of nozzles (100) according to any one of claims 1-4.
6. The spray arm for a dishwasher according to claim 5, wherein: the water outlets (7) of all the nozzles (100) positioned on the spray arm body (200) are oriented differently.
7. A dishwasher, characterized in that: a spray arm comprising the spray arm of claim 5 or 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811177531.2A CN109259700B (en) | 2018-10-10 | 2018-10-10 | Nozzle, spray arm for dish washing machine and dish washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811177531.2A CN109259700B (en) | 2018-10-10 | 2018-10-10 | Nozzle, spray arm for dish washing machine and dish washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109259700A CN109259700A (en) | 2019-01-25 |
| CN109259700B true CN109259700B (en) | 2024-04-05 |
Family
ID=65196978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811177531.2A Active CN109259700B (en) | 2018-10-10 | 2018-10-10 | Nozzle, spray arm for dish washing machine and dish washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109259700B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114904671B (en) * | 2022-05-05 | 2023-02-14 | 中国矿业大学 | Bionic multi-cavity multi-layer special-shaped water jet nozzle |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63296729A (en) * | 1987-05-29 | 1988-12-02 | 株式会社日立製作所 | Tableware washer |
| CN2124339U (en) * | 1992-06-27 | 1992-12-09 | 石油大学(北京) | Jet generator with self-oscillatory cavitation erosion structure |
| JPH06134414A (en) * | 1992-10-28 | 1994-05-17 | Keihin Seiki Mfg Co Ltd | Washing device for work |
| CN1187982A (en) * | 1996-10-31 | 1998-07-22 | 三洋电机株式会社 | Tableware cleaning machine |
| JP2003080117A (en) * | 2001-09-07 | 2003-03-18 | Keihin Corp | Jetting nozzle |
| KR20040064746A (en) * | 2003-01-10 | 2004-07-21 | 삼성전자주식회사 | Dish washer |
| KR20100036499A (en) * | 2008-09-30 | 2010-04-08 | 한민형 | Tableware washer |
| CN103654668A (en) * | 2012-09-11 | 2014-03-26 | Lg电子株式会社 | Dishwasher |
| CN106073553A (en) * | 2016-08-02 | 2016-11-09 | 宁波方太厨具有限公司 | A kind of spray arm cleaned for fruit and vegerable and fruit-vegetable cleaner |
| CN106984449A (en) * | 2017-05-10 | 2017-07-28 | 哈尔滨工程大学 | A kind of cavitating nozzle with resonator |
| CN206810523U (en) * | 2017-05-19 | 2017-12-29 | 深圳市行知行机器人技术有限公司 | Cavitating nozzle and cleaning equipment |
| CN209122135U (en) * | 2018-10-10 | 2019-07-19 | 珠海格力电器股份有限公司 | Nozzle, spraying arm for dish-washing machine and dish-washing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060118495A1 (en) * | 2004-12-08 | 2006-06-08 | Ilia Kondratalv | Nozzle for generating high-energy cavitation |
-
2018
- 2018-10-10 CN CN201811177531.2A patent/CN109259700B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63296729A (en) * | 1987-05-29 | 1988-12-02 | 株式会社日立製作所 | Tableware washer |
| CN2124339U (en) * | 1992-06-27 | 1992-12-09 | 石油大学(北京) | Jet generator with self-oscillatory cavitation erosion structure |
| JPH06134414A (en) * | 1992-10-28 | 1994-05-17 | Keihin Seiki Mfg Co Ltd | Washing device for work |
| CN1187982A (en) * | 1996-10-31 | 1998-07-22 | 三洋电机株式会社 | Tableware cleaning machine |
| JP2003080117A (en) * | 2001-09-07 | 2003-03-18 | Keihin Corp | Jetting nozzle |
| KR20040064746A (en) * | 2003-01-10 | 2004-07-21 | 삼성전자주식회사 | Dish washer |
| KR20100036499A (en) * | 2008-09-30 | 2010-04-08 | 한민형 | Tableware washer |
| CN103654668A (en) * | 2012-09-11 | 2014-03-26 | Lg电子株式会社 | Dishwasher |
| CN106073553A (en) * | 2016-08-02 | 2016-11-09 | 宁波方太厨具有限公司 | A kind of spray arm cleaned for fruit and vegerable and fruit-vegetable cleaner |
| CN106984449A (en) * | 2017-05-10 | 2017-07-28 | 哈尔滨工程大学 | A kind of cavitating nozzle with resonator |
| CN206810523U (en) * | 2017-05-19 | 2017-12-29 | 深圳市行知行机器人技术有限公司 | Cavitating nozzle and cleaning equipment |
| CN209122135U (en) * | 2018-10-10 | 2019-07-19 | 珠海格力电器股份有限公司 | Nozzle, spraying arm for dish-washing machine and dish-washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109259700A (en) | 2019-01-25 |
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