CN109589070B - Spray arm and cleaning machine applying same - Google Patents
Spray arm and cleaning machine applying same Download PDFInfo
- Publication number
- CN109589070B CN109589070B CN201710916398.7A CN201710916398A CN109589070B CN 109589070 B CN109589070 B CN 109589070B CN 201710916398 A CN201710916398 A CN 201710916398A CN 109589070 B CN109589070 B CN 109589070B
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- CN
- China
- Prior art keywords
- nozzle
- spray arm
- air
- baffle
- air duct
- 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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- 239000007921 spray Substances 0.000 title claims abstract description 42
- 238000004140 cleaning Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000005406 washing Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000005587 bubbling Effects 0.000 claims description 3
- 238000005187 foaming Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 7
- 235000021186 dishes Nutrition 0.000 abstract description 3
- 235000013399 edible fruits Nutrition 0.000 abstract description 3
- 235000013311 vegetables Nutrition 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 abstract 1
- 238000004851 dishwashing Methods 0.000 description 11
- 230000004888 barrier function Effects 0.000 description 10
- 238000000926 separation method Methods 0.000 description 6
- 239000006260 foam Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009941 weaving 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
-
- 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
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
Abstract
The invention relates to a spray arm and a cleaning machine using the same, which comprises a spray arm body, a nozzle and an air duct, wherein the spray arm body is provided with a water inlet and a water outlet, the nozzle is arranged on the water outlet, the inner diameter of the nozzle is gradually reduced from front to back, the side wall of the nozzle is provided with an air inlet communicated with the inner cavity of the nozzle, the air duct is arranged on the air inlet, and the air duct is internally provided with a baffle component which allows air to enter and prevents water flow from flowing out. According to the invention, the nozzle is arranged on the air outlet hole of the spray arm, the inner diameter of the nozzle is gradually reduced from front to back, on one hand, the flow velocity of water is increased, on the other hand, negative pressure is formed in the nozzle, so that suction force is generated, air is sucked into the nozzle from the air duct at one side of the nozzle, bubbles are entrained in sprayed water flow, when the water flow with the bubbles is sprayed to dishes, the bubbles in the water flow contact the dishes to generate cracking and generate larger impact force, and therefore, stubborn dirt on the dishes or vegetables and fruits is dispersed, and a better cleaning effect is achieved.
Description
Technical Field
The invention relates to the technical field of dish washing machines, in particular to a spray arm capable of enabling bubbles to be entrained in sprayed water flow and a washing machine using the spray arm.
Background
With the increasing level of living of people, dish washers are increasingly entering home as household electrical appliances for kitchen use. The existing dish-washing machines on the market are generally divided into three types of a desk type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the desk type dish-washing machine is of an integral independent structure and is generally placed on a desk for use; the cabinet type dish washer is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the tub dishwasher is combined with a tub and is generally installed in a kitchen cabinet.
The dish washing machine of the above-mentioned various forms generally has a washing function by lifting water by a water pump and spraying the water toward dishes in a washing space. For example, the chinese patent with application number CN97236119.7, i.e. a microcomputer light-operated full-automatic dish washer, and the chinese patent with application number CN00240098.7, i.e. a dish washer, all disclose similar structures, in which the impact force of water flow sprayed to the dishes is weak and not uniform enough, and when the number of dishes is large, the water flow cannot be covered, resulting in poor cleaning effect. The chinese patent with application number CN200710306898.5, "dish washing machine, especially household dish washing machine, provided with a device for improving decontamination effect" provides a vaporizing device for generating a fluid mist that can be introduced into a dish washing machine cavity to expand the washing area of the dishes and improve the uniformity of the washing medium, but such a structure still cannot solve the problem of weak impact force of the sprayed water flow. The Chinese patent with the application number of 201610795828.X, namely a large-scale ultrasonic automatic dish washer, is provided with an ultrasonic emission head device, high-pressure air is input into a cleaning liquid at the same time, the input high-pressure air forms bubbles in the cleaning liquid by utilizing the ultrasonic emission head device, and an ultrasonic transducer is used for providing energy for the cleaning liquid, so that the bubbles in the cleaning liquid are broken to generate impact force, and the impact force of water flow is improved. However, in such a structure, the instantaneous cavitation phenomenon generated between the ultrasonic wave and the high-pressure air bubbles needs to be maintained in water, and when the water flow is lifted by the water pump and is circularly sprayed out, the high-pressure air bubbles are difficult to reach the surfaces of the dishes, and then break, so that the structure is not suitable for the structure of the water flow spraying type dish washing machine. In addition, the structure is only suitable for large-scale dish washers, and is difficult to be suitable for household dish washers.
Disclosure of Invention
The invention aims to solve the technical problem of providing a spray arm which can increase the impact strength on an object to be cleaned by forming bubbles in water flow so as to improve the cleaning effect.
Another technical problem to be solved by the present invention is to provide a cleaning machine using the spray arm, which improves impact strength on the object to be cleaned and thus improves cleaning effect, aiming at the current state of the art.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a spray arm, thereby including spray arm body, thereby this spray arm body inside cavity forms the water storage chamber, water inlet and the apopore that are linked together with this water storage chamber have been seted up on the spray arm body, its characterized in that: the water outlet device comprises a water outlet hole, and is characterized by further comprising a nozzle, wherein the nozzle is arranged on the water outlet hole, the inner diameter of the nozzle is gradually reduced along the water flow direction, an air guide pipe communicated with the inner cavity of the nozzle is arranged on the outer side wall of the nozzle, and a baffle component which allows air to enter the inner cavity of the nozzle to prevent water flow from flowing out is arranged in the air guide pipe.
In the above scheme, separate the fender subassembly and include first separation blade and second separation blade, first separation blade is from the interior roof of air duct obliquely downwards and along the radial inwards extension of nozzle, the second separation blade is from the interior bottom wall of air duct obliquely upwards and along the radial inwards extension of nozzle, just be formed with the clearance that the air feed passes through between the lower border of first separation blade and the upper border of second separation blade. Because the inner diameter of the nozzle is gradually reduced from front to back, a certain negative pressure is formed in the nozzle in the continuous water flow spraying process, so that suction force is generated, gas enters the nozzle through the gap, bubbles are mixed in the water flow, and the impact force on the cleaned object is enhanced.
Preferably, the upper edge of the second baffle is located downstream of the lower edge of the first baffle in terms of the direction of gas flow. The first baffle plate and the second baffle plate arch towards the air inlet end of the air guide pipe. By the arrangement of the structure, the gap and the central channel of the air duct are staggered to a certain extent, so that water in the nozzle is prevented from flowing out from the air inlet end of the air duct after passing through the gap.
Further preferably, a diversion hole for water supply to flow out is formed in the bottom wall of the air duct, and the diversion hole is positioned at the downstream of the first baffle plate and the second baffle plate according to the air flow direction. The water guide hole is arranged, if a small amount of water enters the air guide pipe, the water can be discharged into the washing cavity through the water guide hole, so that the blockage of the air guide pipe caused by the backflow of water flow in the air guide pipe is avoided.
Preferably, the air duct is tilted upwards gradually from the air outlet end to the air inlet end, the cross section of the air duct is square, the air outlet end of the air duct is provided with an inserting part, and the side wall of the nozzle is provided with an air inlet which is matched with the inserting part. This structure is favorable to gas entering and avoids rivers to flow out.
As an improvement, a bubbler capable of increasing the number of bubbles and thinning the volume of the bubbles is arranged in the inner cavity of the nozzle. By adopting the structure, the larger bubbles can be divided after the gas enters the nozzle, so that bubbles with small volume and large quantity are formed, and meanwhile, more bubbles are formed with the mixed gas when the water flow contacts the bubbler, so that the entrainment quantity of the bubbles in the water flow is improved.
Preferably, the bubbler comprises a cylindrical body and a bubbling net arranged in the body, wherein the body and the nozzle are coaxially arranged, and the outer peripheral wall of the body is closely attached to the inner peripheral wall of the nozzle.
Preferably, the foam net at least comprises a first net layer and a second net layer which are arranged at intervals up and down, the first net layer is formed by mutually staggered weaving of straight lines which are arranged transversely and wave lines which are arranged longitudinally, and the second net layer is provided with a plurality of foam holes which are arranged at intervals to form a honeycomb panel. This structure is advantageous for dividing large bubbles and forming small bubbles.
The utility model provides an use cleaning machine who has above-mentioned spray arm, includes the box, and this box has washing chamber, its characterized in that: the spray arm body is rotatably arranged in the washing cavity.
Compared with the prior art, the invention has the advantages that: according to the invention, the nozzle is arranged on the air outlet hole of the spray arm, the air guide pipe communicated with the nozzle is arranged on one side of the nozzle, the inner diameter of the nozzle is gradually reduced from front to back, on one hand, the flow velocity of water flow is increased, and on the other hand, negative pressure is formed in the nozzle, so that suction force is generated, air is sucked into the nozzle from the air guide pipe, bubbles are entrained in sprayed water flow, when the water flow mixed with the bubbles sprays to dishes, the bubbles in the water flow contact the dishes and generate larger impact force, so that stubborn dirt on the dishes or vegetables and fruits is dispersed, and a better cleaning effect is achieved.
Drawings
FIG. 1 is a schematic view of a spray arm according to an embodiment of the present invention;
FIG. 2 is a partially exploded view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1 (hidden bubbler);
FIG. 4 is a schematic view showing an assembled structure of a bubbler and a nozzle according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a cleaning machine according to an embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 5, the spray arm of the present embodiment includes a spray arm body 1, a nozzle 2 and an air duct 3, the spray arm body 1 is hollow to form a water storage cavity 10, and a water inlet 11 and a water outlet 12 which are communicated with the water storage cavity 10 are provided on the spray arm body 1. The water inlet 11 is formed on the lower surface of the spray arm body 1 and is positioned at the central part of the spray arm body 1, the water outlets 12 are multiple and are arranged on the upper surface of the spray arm body 1 at intervals, the upper surface of the spray arm body 1 is also provided with plug rings 13 which are arranged around the periphery of the water outlets 12, correspondingly, the water inlet end of the nozzle 2 is provided with a plug sleeve 21 which can be in plug connection with the plug rings 13, and a sealing ring 4 is arranged between the plug rings 13 and the plug sleeve 21.
In this embodiment, the inner diameter of the nozzle 2 gradually decreases along the water flow direction, the sidewall of the nozzle 2 is provided with an air inlet 22 communicated with the inner cavity of the nozzle 2, and the air duct 3 is disposed on the air inlet 22. The air duct 3 of this embodiment is tilted upwards gradually from the air outlet end to the air inlet end, and the cross section of the air duct 3 is shaped into a square, and the air outlet end of the air duct 3 is provided with a plug-in portion 31 which is connected with the air inlet 22 of the nozzle 2 in a plug-in manner, which is beneficial to the air entering and avoiding the water flow from flowing out.
The air duct 3 of the present embodiment is provided with a barrier member 32 for allowing air to enter and preventing water from flowing out. The barrier assembly 32 includes a first barrier 321 and a second barrier 322, the first barrier 321 extends obliquely downward from the inner top wall of the air duct 3 and radially inward along the nozzle 2, the second barrier 322 extends obliquely upward from the inner bottom wall of the air duct 3 and radially inward along the nozzle 2, and a gap 323 through which air passes is formed between the lower edge of the first barrier 321 and the upper edge of the second barrier 322. And, the upper edge of the second barrier 322 is located downstream of the lower edge of the first barrier 321 in terms of the gas flow direction. The first blocking piece 321 and the second blocking piece 322 arch towards the air inlet end of the air guide 3. Because the inner diameter of the nozzle 2 is gradually reduced from front to back, a certain negative pressure is formed in the nozzle 2 in the continuous water flow spraying process, so that suction force is generated, gas enters the nozzle 2 through the gap 323, bubbles are mixed in the water flow, and the impact force on the cleaned object is enhanced. The gap 323 and the central channel of the air duct 3 are offset to a certain extent, so that water in the nozzle 2 can be prevented from flowing out from the air inlet end of the air duct 3 after passing through the gap 323. The bottom wall of the air duct 3 of this embodiment is provided with a diversion hole 33 for water to flow out, and the diversion hole 33 is located downstream of the first baffle 321 and the second baffle 322 according to the air flowing direction. The water guide hole 33 is arranged, if a small amount of water enters the air guide pipe 3, the water can be discharged into a washing cavity of the washing machine through the water guide hole 33, so that the air guide pipe 3 is prevented from being blocked by the backflow of water flow in the air guide pipe 3.
In this embodiment, a bubbler 5 is provided in the inner cavity of the nozzle 2 to increase the number of bubbles and refine the volume of the bubbles. By adopting the structure, after the gas enters the nozzle 2, larger bubbles can be divided to form bubbles with small volume and large quantity, and meanwhile, more bubbles can be formed with the mixed gas when the water flow contacts the bubbler 5, so that the entrainment quantity of the bubbles in the water flow is improved. The bubbler 5 comprises a cylindrical body 51 and a bubbling screen provided in the body 51, the body 51 being arranged coaxially with the nozzle 2 and the outer peripheral wall of the body 51 being in close proximity to the inner peripheral wall of the nozzle. The foam net at least comprises a first net layer 52 and a second net layer 53 which are arranged at intervals up and down, the first net layer 52 is formed by mutually interweaving straight lines 521 which are arranged transversely and wavy lines 522 which are arranged longitudinally, the second net layer 53 is provided with a plurality of foam holes 531, and a plurality of foam holes 531 are arranged at intervals to form a honeycomb panel. This structure is advantageous for dividing large bubbles and forming small bubbles.
The cleaning machine with the spray arm in this embodiment includes a box 6 and the spray arm, the box 6 has a cleaning chamber 60, and the spray arm is rotatably disposed in the cleaning chamber 60 and is located at the bottom of the cleaning chamber 60.
In this embodiment, the nozzle 2 is disposed on the air outlet hole 12 of the spray arm, and the air duct 3 that is communicated with the nozzle 2 is disposed on one side of the nozzle 2, so that the inner diameter of the nozzle 2 gradually decreases from front to back, on one hand, the flow velocity of water is increased, and on the other hand, negative pressure is formed in the nozzle, so as to generate suction force, and air is sucked into the nozzle 2 from the air duct 3, and the air may exist in the nozzle 2 in a larger form, after passing through the bubbler 5, the large air bubbles are separated into small air bubbles, and simultaneously generate more small air bubbles, so that abundant air bubbles are entrained in the sprayed water flow, when the water flow mixed with the air bubbles is sprayed to dishes, the air bubbles in the water flow contact with the dishes, break and generate a larger impact force, so that the dishes or vegetables and fruits are scattered with stubborn dirt, and a better cleaning effect is achieved.
Claims (7)
1. The utility model provides a spray arm, includes spray arm body (1), thereby this spray arm body (1) inside cavity forms water storage chamber (10), water inlet (11) and apopore (12) that are linked together with this water storage chamber (10) are seted up on spray arm body (1), its characterized in that: the water flow control device is characterized by further comprising a nozzle (2), wherein the nozzle (2) is arranged on the water outlet hole (12), the inner diameter of the nozzle (2) is gradually reduced along the water flow direction, an air duct (3) communicated with the inner cavity of the nozzle (2) is arranged on the outer side wall of the nozzle (2), and a baffle component (32) which allows air to enter the inner cavity of the nozzle (2) and prevents water flow from flowing out is arranged in the air duct (3);
the baffle assembly (32) comprises a first baffle (321) and a second baffle (322), the first baffle (321) obliquely downward extends from the inner top wall of the air duct (3) and radially inwards extends along the nozzle, the second baffle (322) obliquely upward extends from the inner bottom wall of the air duct (3) and radially inwards extends along the nozzle, and a gap (323) for passing air is formed between the lower edge of the first baffle (321) and the upper edge of the second baffle (322);
the upper edge of the second baffle plate (322) is positioned at the downstream of the lower edge of the first baffle plate (321) according to the gas flow direction;
the first baffle (321) and the second baffle (322) arch towards the air inlet end of the air guide pipe (3).
2. The spray arm of claim 1, wherein: the bottom wall of the air duct (3) is provided with a diversion hole (33) for water supply to flow out, and the diversion hole (33) is positioned at the downstream of the first baffle plate (321) and the second baffle plate (322) according to the air flow direction.
3. The spray arm of claim 1, wherein: the air duct (3) is tilted upwards gradually from the air outlet end to the air inlet end, the cross section of the air duct (3) is square, the air outlet end of the air duct (3) is provided with an inserting part (31), and the side wall of the nozzle (2) is provided with an air inlet (22) which is matched with the inserting part (31).
4. A spray arm according to any one of claims 1 to 3, wherein: the inner cavity of the nozzle (2) is provided with a bubbler (5) which can increase the number of bubbles and refine the volume of the bubbles.
5. The spray arm of claim 4, wherein: the bubbler (5) comprises a cylindrical body (51) and a bubbling net arranged in the body (51), wherein the body (51) and the nozzle (2) are coaxially arranged, and the outer peripheral wall of the body is tightly attached to the inner peripheral wall of the nozzle (2).
6. The spray arm of claim 5, wherein: the foaming net at least comprises a first net layer (52) and a second net layer (53) which are arranged at intervals up and down, the first net layer (52) is formed by mutually interweaving straight lines (521) which are arranged transversely and wavy lines (522) which are arranged longitudinally, and the second net layer (53) is provided with a plurality of foaming holes (531) and a plurality of foaming holes (531) which are arranged at intervals to form a honeycomb panel.
7. A cleaning machine with a spray arm according to any one of claims 1 to 6, comprising a tank (6), the tank (6) having a washing chamber (60), characterized in that: the washing machine also comprises a spray arm which is rotatably arranged in the washing cavity (60).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710916398.7A CN109589070B (en) | 2017-09-30 | 2017-09-30 | Spray arm and cleaning machine applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710916398.7A CN109589070B (en) | 2017-09-30 | 2017-09-30 | Spray arm and cleaning machine applying same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109589070A CN109589070A (en) | 2019-04-09 |
| CN109589070B true CN109589070B (en) | 2024-01-16 |
Family
ID=65955737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710916398.7A Active CN109589070B (en) | 2017-09-30 | 2017-09-30 | Spray arm and cleaning machine applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109589070B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114642390A (en) * | 2020-12-21 | 2022-06-21 | 宁波方太厨具有限公司 | Spray arm and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002059186A (en) * | 2000-08-17 | 2002-02-26 | Ryosaku Fujisato | Water-jet type fine bubble generator |
| CN102370450A (en) * | 2011-09-26 | 2012-03-14 | 张英华 | Rotating spray arm for dish-washing machine |
| CN104622403A (en) * | 2013-11-12 | 2015-05-20 | 三星电子株式会社 | Jet unit, jet nozzle and manufacturing method the same and dish washing machine |
-
2017
- 2017-09-30 CN CN201710916398.7A patent/CN109589070B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002059186A (en) * | 2000-08-17 | 2002-02-26 | Ryosaku Fujisato | Water-jet type fine bubble generator |
| CN102370450A (en) * | 2011-09-26 | 2012-03-14 | 张英华 | Rotating spray arm for dish-washing machine |
| CN104622403A (en) * | 2013-11-12 | 2015-05-20 | 三星电子株式会社 | Jet unit, jet nozzle and manufacturing method the same and dish washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109589070A (en) | 2019-04-09 |
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