CN113317741A - Impeller structure for double-layer spraying system and cleaning machine with same - Google Patents
Impeller structure for double-layer spraying system and cleaning machine with same Download PDFInfo
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- CN113317741A CN113317741A CN202010126609.9A CN202010126609A CN113317741A CN 113317741 A CN113317741 A CN 113317741A CN 202010126609 A CN202010126609 A CN 202010126609A CN 113317741 A CN113317741 A CN 113317741A
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- impeller
- spray arm
- edge
- double
- end cover
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- 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
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- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Washing And Drying Of Tableware (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an impeller structure for a double-layer spraying system, which is characterized in that: the impeller comprises a first impeller and a second impeller, wherein the first impeller is provided with a shaft positioned at the center and first blades spirally wound on the peripheral wall of the shaft along the axial direction, the second impeller is sleeved on the periphery of the first impeller and can synchronously rotate along with the first impeller, and the second impeller is provided with second blades extending along the radial direction of the first impeller. The invention provides an impeller structure capable of meeting the water flow and water pressure of a double-layer spraying system, when the impeller structure is used, the water flow of the lower layer is upwards sucked by the lower part of a first impeller to keep corresponding water flow, and is circumferentially dispersed by a second impeller to ensure high water pressure, so that the lower layer has high cleaning force; the upper layer draws water upwards through the upper part of the first impeller, so that larger water flow is kept, and double-layer spraying is realized. The cleaning machine with the impeller structure realizes double-layer spraying, is beneficial to eliminating cleaning dead angles and improves the cleaning effect.
Description
Technical Field
The invention relates to an impeller structure for a double-layer spraying system and a cleaning machine applying the structure.
Background
With the increasing living standard of people, the dish washing machine is used as a kitchen household appliance and is more and more introduced into families. The dish-washing machines on the market at present are generally divided into a table type dish-washing machine, a cabinet type dish-washing machine and a trough type dish-washing machine, wherein the table type dish-washing machine is an integral independent structure and is generally placed on a table top for use; the cabinet type dish washing machine is also an independent structure, but needs to be embedded into a kitchen cabinet for use; the sink dishwasher is combined with a sink and is generally installed in a kitchen cabinet for use.
The above-mentioned various types of dish-washing machines generally achieve the cleaning action by lifting water up by a water pump and spraying it to the dishes, fruits and vegetables in the cleaning space, and a single-layer spraying system is adopted, and its impeller is only in accordance with the flow rate and pressure required by the single-layer spraying system. When the tableware washing machine works, tableware is arranged above the spray arm, and water flow sprayed by the spray arm washes the tableware from bottom to top. Because the washing rivers only have the impact force in limited direction, so current basin dish washer is put and the tableware appearance requirement is very high to user's tableware, and the tableware is put incorrectly or the tableware shape mismatch can lead to the cleanliness factor unsatisfactory, and when the tableware puts under the exact scene, the tableware top of part shape also probably has impurity to remain, influences washing effect and user experience.
The double-layer spraying system which sprays vertically and simultaneously can effectively improve the cleaning effect, and therefore, the impeller structure which can meet the flow and pressure required by the double-layer spraying system is particularly necessary.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides an impeller structure capable of meeting the flow and pressure required by a double-layer spraying system, and the impeller structure can provide uniform water flow of an upper layer and a lower layer.
Another technical problem to be solved by the present invention is to provide a cleaning machine with the above impeller structure, which can effectively eliminate the cleaning dead angle and improve the cleaning effect.
The technical scheme adopted by the invention for solving at least one technical problem is as follows: the utility model provides an impeller structure for double-deck spraying system which characterized in that: the impeller comprises a first impeller and a second impeller, wherein the first impeller is provided with a shaft positioned at the center and first blades spirally wound on the peripheral wall of the shaft along the axial direction, the second impeller is sleeved on the periphery of the first impeller and can synchronously rotate along with the first impeller, and the second impeller is provided with second blades extending along the radial direction of the first impeller.
Preferably, the second impeller further comprises an end cover positioned above the second impeller, the middle part of the end cover is provided with a mounting hole for the first impeller to pass through, and the second impeller is distributed along the outer periphery of the mounting hole. The end cover is arranged to be matched with the spray arm to form a semi-open type pump structure, so that the water pressure of a cleaning area at the lower part of the cleaning machine is improved, and the cleaning effect of the lower part of the cleaning machine is further improved.
Preferably, the outer edge of the end cover is provided with a notch extending inwards in the radial direction. Further preferably, the width of the notch is gradually reduced from the outer edge of the end cover inwards, and the inner end edge of the notch is of an arc structure which is arched towards the shaft. After the water-sucking device is combined with the spray arm, the arrangement of the notch is convenient for sucking water above the second impeller, and the fluid viscous force of water flow on the upper wall surface of the spray arm can be reduced, so that the capacity loss is reduced.
Preferably, the end cap is recessed radially inwardly from the rim. The structure is favorable for forming negative pressure and improving the water pumping effect from bottom to top.
Preferably, the second impeller is arranged at the middle upper part of the first impeller, a gap is reserved between the assembly hole and the outer peripheral wall of the shaft, and the inner edge of the assembly hole is fixedly connected with the outer edge of the first impeller. The above-mentioned gap can be used for supplying water flow and drawing from bottom to top, and can ensure the water flow quantity of upper spray.
As an improvement, the second blade comprises a first part and a second part which are mutually connected, the first part extends outwards from the outer edge of the first impeller and the extending direction of the first part is opposite to the rotating direction of the second blade, and the second part extends from the outer edge of the first part to the edge of the end cover and the extending direction of the second part is the same as the rotating direction of the second blade. The structure is beneficial to improving the work of water flow, increasing the flow speed of water outlet and providing large water pressure of the water flow meter for cleaning the lower layer.
Preferably, the projection length of the first part on the end cover is L1, the projection length of the second part on the end cover is L2, L2 is K (L1+ L2), and K is 0.3-0.6. The plane where the inner end of the first part and the axis of the first impeller are located is a, the acute angle formed between the first part and the plane a is theta, and theta is more than or equal to 20 degrees and less than or equal to 40 degrees. The acute angle formed between the first part and the second part is
The edge of the first part close to the first impeller is an arc-shaped edge arched towards the first impeller, an included angle formed between a tangent line of the arc-shaped edge and the axial lead of the first impeller is theta 1, and theta 1 is more than or equal to 30 degrees and less than or equal to 45 degrees. The structure is favorable for improving the water pumping efficiency.
The utility model provides an use cleaning machine that has above-mentioned impeller structure that is used for double-deck spraying system, includes box, first spray arm and driving piece, the inside cavity of box forms the washing chamber, the lower part in washing chamber, its characterized in that are located to first spray arm: the second spray arm is arranged in the washing cavity, supported above the first spray arm through a flow guide channel and communicated with the first spray arm in a fluid mode; the lower wall of the first spray arm is provided with a water inlet, the top of the first spray arm is provided with a water outlet corresponding to the lower port of the diversion channel, the upper part of the impeller structure penetrates through the water inlet to extend into the first spray arm, the upper end of the first impeller corresponds to the lower port of the diversion channel, the second impeller is positioned in the first spray arm, the lower part of the first impeller is positioned below the first spray arm, and the driving piece is arranged at the bottom of the box body and the output end of the driving piece penetrates through the bottom wall of the box body to be connected with the shaft of the first impeller.
Compared with the prior art, the invention has the advantages that: the invention provides an impeller structure capable of meeting the water flow and water pressure of a double-layer spraying system, when the impeller structure is used, the water flow of the lower layer is upwards sucked by the lower part of a first impeller to keep corresponding water flow, and is circumferentially dispersed by a second impeller to ensure high water pressure, so that the lower layer has high cleaning force; the upper layer draws water upwards through the upper part of the first impeller, so that larger water flow is kept, and double-layer spraying is realized. The cleaning machine with the impeller structure realizes double-layer spraying, is beneficial to eliminating cleaning dead angles and improves the cleaning effect.
Drawings
FIG. 1 is a schematic view of an impeller according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic structural view of the second impeller of FIG. 2;
FIG. 4 is a schematic view of the structure of FIG. 3 from another angle;
FIG. 5 is a bottom view of FIG. 3;
fig. 6 is a schematic structural diagram of a cleaning machine according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 5, the impeller structure for the double-layer spraying system of the present embodiment includes a first impeller 1 and a second impeller 2, the first impeller 1 has a central shaft 11 and a first blade 12 spirally wound on an outer peripheral wall of the shaft 11 along an axial direction, that is, the first blade 12 is an axial flow blade for drawing water along the axial direction. The second impeller 2 is sleeved on the periphery of the first impeller 1 and can synchronously rotate along with the first impeller 1, the second impeller 2 is provided with a plurality of second blades 22 extending along the radial direction of the first impeller 1, and the second blades 22 are centrifugal blades and used for dispersing water along the circumferential direction.
The second impeller 2 further includes an end cover 21 located above the second vane 22, a mounting hole 23 is formed in a middle portion of the end cover 21 for the first impeller 1 to pass through, and the plurality of second vanes 22 are distributed along an outer peripheral edge of the mounting hole 23 on a lower wall surface of the end cover 21. The end cover 21 is arranged to be matched with the spray arm to form a semi-open type pump structure, so that the water pressure of a cleaning area at the lower part of the cleaning machine is improved, and the cleaning effect of the lower part of the cleaning machine is further improved.
In this embodiment, the end cap 21 is notched 211 at its outer edge to extend radially inward. The width of the notch 211 decreases from the outer edge of the end cap 21 inwardly, and the inner end edge of the notch 211 is an arc-shaped structure 212 that is arched toward the axis. After being combined with the spray arm, the notch 211 is arranged to facilitate the water drawing to the upper part of the second impeller 2, and can reduce the fluid viscous force of the water flow to the upper wall surface of the spray arm and reduce the capacity loss. The end cover 21 is gradually sunken downwards from the edge along the radial direction, and the structure is favorable for forming negative pressure and improving the water pumping effect from bottom to top.
The second impeller 2 is provided at an upper middle portion of the first impeller 1, a gap 24 is provided between the fitting hole 23 and an outer peripheral wall of the shaft 11, and an inner edge of the fitting hole 24 and an outer edge of the first impeller 12 are integrally connected by fusion. The gap 24 can be used for sucking water flow from bottom to top, and ensures the water flow of upper spraying.
In the present embodiment, the second vane 22 includes a first portion 221 and a second portion 222 that are connected to each other, the first portion 221 extends outward from the outer edge of the first impeller 1 and the extending direction is opposite to the rotating direction of the second vane 22, and the second portion 222 extends from the outer edge of the first portion 221 to the edge of the end cover 21 and the extending direction is the same as the rotating direction of the second vane 22. The structure is beneficial to improving the work of water flow, increasing the flow speed of water outlet and providing large water pressure of the water flow meter for cleaning the lower layer. The projection length of the first part 221 on the end cover 21 is L1, the projection length of the second part 222 on the end cover 21 is L2, L2 is K (L1+ L2), and K is 0.3-0.6. The plane where the inner end of the first part 221 and the axis of the first impeller 1 are located is a, the acute angle formed between the first part 221 and the plane a is theta, and theta is more than or equal to 20 degrees and less than or equal to 40 degrees. The acute angle formed between the first part 221 and the second part 222 is
The edge of the first part 221 close to the first impeller 1 is an arc-shaped edge arched towards the first impeller 1, an included angle formed between a tangent line of the arc-shaped edge and the axial lead of the first impeller 1 is theta 1, and theta 1 is more than or equal to 30 degrees and less than or equal to 45 degrees. The structure is favorable for improving the water pumping efficiency.
As shown in fig. 6, the cleaning machine with the impeller structure for the double-layer spraying system in this embodiment includes a box 5, a first spray arm 6, a driving member 7, a second spray arm 8 and an impeller structure a, wherein the box 5 is hollow to form a washing chamber 51, a flow guide seat 52 is disposed at the bottom of the washing chamber 51, and the first spray arm 6 is rotatably supported on the flow guide seat 52. The first spray arm 6 has a water inlet 61 in the center of its lower wall and a plurality of spaced spray holes in its upper wall.
The second spray arm 8 is provided in the washing chamber 51 and supported above the first spray arm 6 through the guide passage 9, in fluid communication with the first spray arm 6. The guide channel 9 is vertically arranged above the first spray arm 6, a water outlet 62 correspondingly connected with a lower port of the guide channel 9 is formed in the central part of the upper wall surface of the first spray arm 6, the upper part of the impeller structure a penetrates through the water inlet 61 to extend into the first spray arm 6, the upper end of the first impeller 1 corresponds to the lower port of the guide channel 9, namely, a gap for relative rotation of the outer edge of the first blade 12 on the first impeller 1 and the inner edge of the water outlet 62 is formed between the outer edge of the first blade 12 and the inner edge of the first impeller 1, but the gap is extremely small, and the problem that water flow is circumferentially dispersed at the position to cause capacity loss is avoided as much as possible. The central part of the lower wall surface of the second spray arm 8 is provided with a water inlet 81 connected with the upper end opening of the flow guide channel 9, and the upper wall surface is provided with a plurality of water spray holes arranged at intervals.
The second impeller 2 is positioned in the first spray arm 6, the lower part of the first impeller 1 is positioned below the first spray arm 6, the driving part 7 is a motor and is arranged at the bottom of the box body 5, and the output end 71 penetrates through the bottom wall of the box body 5 to be connected with the shaft 11 of the first impeller 1.
When the device is used, the driving piece 7 drives the first impeller 1 to rotate, so that the second impeller 2 is driven to synchronously rotate, the lower-layer water flow is upwards drawn by the first impeller 12 at the lower part of the first impeller 1 to keep corresponding water flow, and is circumferentially dispersed by the second impeller 2 to ensure high water pressure, so that the lower layer has high cleaning force; the upper layer draws water upwards through the first blades 12 on the upper part of the first impeller 1, so that larger water flow is kept, and double-layer spraying is realized.
Claims (10)
1. The utility model provides an impeller structure for double-deck spraying system which characterized in that: the impeller comprises a first impeller (1) and a second impeller (2), wherein the first impeller (1) is provided with a shaft (11) positioned at the center and first blades (12) spirally wound on the outer peripheral wall of the shaft (11) along the axial direction, the second impeller (2) is sleeved on the outer periphery of the first impeller (1) and can synchronously rotate along with the first impeller (1), and the second impeller (2) is provided with second blades (22) extending along the radial direction of the first impeller (1).
2. The impeller structure for a dual layer sprinkler system according to claim 1, wherein: the second impeller (2) further comprises an end cover (21) positioned above the second blades (22), the middle of the end cover (21) is provided with a mounting hole (23) for the first impeller (1) to pass through, and the second blades (22) are distributed along the outer periphery of the mounting hole (23).
3. The impeller structure for a dual layer sprinkler system according to claim 2, wherein: the outer edge of the end cover (21) is provided with a notch (211) extending inwards in the radial direction.
4. The impeller structure for a dual layer sprinkler system according to claim 3, wherein: the width of the notch (211) is gradually reduced from the outer edge of the end cover (21) to the inside, and the inner end edge of the notch (211) is an arc-shaped structure (212) arched towards the shaft (11).
5. The impeller structure for a double layer sprinkler system according to any one of claims 2-4, wherein: the end cap (21) is recessed gradually inwards from the edge in the radial direction.
6. The impeller structure for a double layer sprinkler system according to any one of claims 2-4, wherein: the second impeller (2) is arranged on the middle upper portion of the first impeller (1), a gap (24) is formed between the assembly hole (23) and the outer peripheral wall of the shaft (11), and the inner edge of the assembly hole (23) is fixedly connected with the outer edge of the first blade (12).
7. The impeller structure for a double layer sprinkler system according to any one of claims 2-4, wherein: the second blade (22) comprises a first part (221) and a second part (222) which are mutually connected, the first part (221) extends outwards from the outer edge of the first impeller and the extending direction of the first part is opposite to the rotating direction of the second blade (22), and the second part (222) extends from the outer edge of the first part (221) to the edge of the end cover and the extending direction of the second part is the same as the rotating direction of the second blade (22).
8. The impeller structure for a dual layer sprinkler system according to claim 7, wherein: the projection length of the first part (221) on the end cover (21) is L1, the projection length of the second part (222) on the end cover (21) is L2, L2 is K (L1+ L2), and K is 0.3-0.6; the plane where the inner end of the first part (221) and the axis of the first impeller are located is a, the acute angle formed between the first part (221) and the plane a is theta, and theta is more than or equal to 20 degrees and less than or equal to 40 degrees.
9. The impeller structure for a dual layer sprinkler system according to claim 7, wherein: the acute angle formed between the first part (221) and the second part (222) is
The edge of the first part (221) close to the first impeller is an arc-shaped edge arched towards the first impeller, an included angle formed between the tangent line of the arc-shaped edge and the axial lead of the first impeller is theta 1, and theta 1 is more than or equal to 30 degrees and less than or equal to 45 degrees.
10. A cleaning machine using an impeller structure for a double-layer spraying system according to any one of claims 1 to 9, comprising a box body (5), a first spray arm (6) and a driving member (7), wherein the box body (5) is hollow to form a washing cavity (51), the first spray arm (6) is arranged at the lower part of the washing cavity (51), and the cleaning machine is characterized in that: the washing machine further comprises a second spray arm (8) and the impeller structure (a), wherein the second spray arm (8) is arranged in the washing cavity (51), supported above the first spray arm (6) through a flow guide channel (9) and communicated with the first spray arm (6) in a fluid mode; the lower wall of first spray arm (6) is gone up to open and is had water inlet (61), top and open and have delivery port (62) corresponding with water conservancy diversion passageway (9) lower port, the upper portion of impeller structure (a) is passed water inlet (61) and is stretched into in first spray arm (6) and the upper end of first impeller (1) is corresponding with the lower port of water conservancy diversion passageway (9), second impeller (2) are located first spray arm (6), first impeller (1) lower part is located first spray arm (6) below, box (5) bottom and output are located in driving piece (7) and the axle (11) that box (5) diapire and first impeller (1) were passed are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010126609.9A CN113317741B (en) | 2020-02-28 | 2020-02-28 | Cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010126609.9A CN113317741B (en) | 2020-02-28 | 2020-02-28 | Cleaning machine |
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| Publication Number | Publication Date |
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| CN113317741A true CN113317741A (en) | 2021-08-31 |
| CN113317741B CN113317741B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010126609.9A Active CN113317741B (en) | 2020-02-28 | 2020-02-28 | Cleaning machine |
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Cited By (1)
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|---|---|---|---|---|
| CN113520260A (en) * | 2020-04-14 | 2021-10-22 | 宁波方太厨具有限公司 | Double-layer spraying system and cleaning machine with same |
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| CN113317741B (en) | 2023-08-18 |
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