CN113317741B - Cleaning machine - Google Patents
Cleaning machine Download PDFInfo
- Publication number
- CN113317741B CN113317741B CN202010126609.9A CN202010126609A CN113317741B CN 113317741 B CN113317741 B CN 113317741B CN 202010126609 A CN202010126609 A CN 202010126609A CN 113317741 B CN113317741 B CN 113317741B
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- CN
- China
- Prior art keywords
- impeller
- spray arm
- cleaning machine
- edge
- end cover
- 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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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
- A47L15/14—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
-
- 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
Abstract
The invention relates to a cleaning machine, which 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 coiled on the outer peripheral wall of the shaft along the axial direction, the second impeller is sleeved on the outer 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 spray system, when the impeller structure is used, lower water flow is upwards drawn through the lower part of a first impeller to keep corresponding water flow, and then is circumferentially dispersed through 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, and keeps larger water flow, so that 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 cleaning effect.
Description
Technical Field
The invention relates to an impeller structure for a double-layer spraying system and a cleaning machine applying the same.
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 various forms generally uses a single-layer spraying system, and the impeller of the single-layer spraying system only meets the flow 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 water flow for cleaning only has impact force in a limited direction, the prior water tank dish washer has high requirements on the dish placement and the appearance of the dishes of a user, the incorrect dish placement or the mismatching of the dish shape can lead to unsatisfactory washing purity, and when the dishes are placed in a correct situation, impurities at the top of the dishes in a partial shape can be remained, so that the washing effect and the user experience are affected.
The double-layer spraying system capable of spraying up and down can effectively improve the cleaning effect, so that the impeller structure capable of meeting 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 providing 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 on the upper layer and the lower layer.
Another technical problem to be solved by the invention is to provide a cleaning machine with the impeller structure aiming at the current state of the art, and the cleaning machine can effectively eliminate the cleaning dead angle and improve the cleaning effect.
The invention solves at least one of the technical problems by adopting the following technical proposal: an impeller structure for a double-deck spray system, characterized in that: the device comprises a first impeller and a second impeller, wherein the first impeller is provided with a shaft positioned in the center and first blades spirally coiled 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 blades, an assembly hole for the first impeller to pass through is formed in the middle of the end cover, and the second blades are distributed along the outer periphery of the assembly hole. The end cover is arranged to be matched with the spray arm to form a semi-open 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 at the lower part of the cleaning machine is further improved.
Preferably, the outer edge of the end cap is notched to extend radially inwardly. Further preferably, the width of the notch is gradually reduced inwards from the outer edge of the end cover, and the inner end edge of the notch is of an arc-shaped structure arched towards the shaft. After the water flow is combined with the spray arm, the arrangement of the notch is not only convenient for drawing water to the upper part of the second impeller, but also can reduce the viscous force of the water flow on the fluid on the upper wall surface of the spray arm, and reduce the capacity loss.
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 arranged 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 blade. The gap can draw water flow from bottom to top, and ensures water flow of upper spraying.
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 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 is the same as the rotating direction of the second blade. The structure is favorable for improving the work done to the water flow, increasing the water outlet flow velocity and providing a large water pressure of the water flow meter for cleaning the lower layer.
Preferably, the projection length of the first portion on the end cover is L1, the projection length of the second portion on the end cover is L2, l2=k (l1+l2), and k=0.3 to 0.6. The plane where the inner end of the first part and the axial lead of the first impeller are located is a, and an acute angle formed between the first part and the plane a is theta which 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 isThe edge of the first part close to the first impeller is directed to the first impellerAnd an included angle formed between a tangent line of the arched arc 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 is used for impeller structure of double-deck spraying system, includes box, first spray arm and driving piece, the cavity forms the washing chamber in the box, the lower part in washing chamber is located to first spray arm, its characterized in that: the second spray arm is arranged in the washing cavity, supported above the first spray arm through a diversion channel and in fluid communication with the first spray arm; the lower wall surface 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 part is arranged at the bottom of the box body, and the output end of the driving part 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 spray system, when the impeller structure is used, lower water flow is upwards drawn through the lower part of a first impeller to keep corresponding water flow, and then is circumferentially dispersed through 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, and keeps larger water flow, so that 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 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 view of the second impeller of FIG. 2;
FIG. 4 is a schematic view of the structure of FIG. 3 at 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 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 impeller structure for the double-deck spray system of the present embodiment includes a first impeller 1 and a second impeller 2, the first impeller 1 having a shaft 11 at the center and first blades 12 spirally wound in the axial direction on the outer peripheral wall of the shaft 11, that is, the first blades 12 are axial flow blades for drawing water in 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 are used for dispersing water along the circumferential direction.
The second impeller 2 further comprises an end cover 21 above the second blades 22, wherein the middle of the end cover 21 is provided with an assembly hole 23 for the first impeller 1 to pass through, and a plurality of second blades 22 are distributed on the lower wall surface of the end cover 21 along the outer periphery of the assembly hole 23. The end cover 21 is arranged to cooperate with the spray arm to form a semi-open pump structure, so that the water pressure of a cleaning area at the lower part of the cleaning machine is increased, and the cleaning effect at the lower part of the cleaning machine is further improved.
In this embodiment, the outer edge of the end cap 21 is notched 211 extending radially inward. The width of the notch 211 gradually decreases inwardly from the outer edge of the end cap 21, and the inner end edge of the notch 211 is an arcuate structure 212 that arches toward the axis. After being combined with the spray arm, the notch 211 is arranged to facilitate water drawing to the upper part of the second impeller 2, and can reduce the viscous force of water flow to the fluid on the upper wall surface of the spray arm and reduce the capacity loss. The end cover 21 is recessed from the edge inwards gradually downwards along the radial direction, and the structure is beneficial to forming negative pressure and improving the water pumping effect from bottom to top.
The second impeller 2 is provided at the upper middle portion of the first impeller 1, and a gap 24 is provided between the fitting hole 23 and the outer peripheral wall of the shaft 11, and the inner edge of the fitting hole 24 and the outer edge of the first blade 12 are integrally connected by fusion. The gap 24 can draw water flow from bottom to top, and ensures water flow of upper spraying.
In the present practiceIn the 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 outwards from the outer edge of the first impeller 1 and has a direction opposite to the rotation direction of the second vane 22, and the second portion 222 extends from the outer edge of the first portion 221 towards the edge of the end cover 21 and has a direction identical to the rotation direction of the second vane 22. The structure is favorable for improving the work done to the water flow, increasing the water outlet flow velocity and providing a large water pressure of the water flow meter for cleaning the lower layer. The projection length of the first portion 221 on the end cover 21 is L1, the projection length of the second portion 222 on the end cover 21 is L2, l2=k (l1+l2), and k=0.3 to 0.6. The plane where the inner end of the first part 221 and the axial lead of the first impeller 1 are located is a, and an acute angle formed between the first part 221 and the plane a is theta which 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 isThe edge of the first part 221, which is close to the first impeller 1, is an arc-shaped edge arched towards the first impeller 1, and 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 spray system according to the present embodiment includes a casing 5, a first spray arm 6, a driving member 7, a second spray arm 8, and an impeller structure a, wherein a cleaning chamber 51 is formed in the casing 5, a flow guiding seat 52 is disposed at the bottom of the cleaning chamber 51, and the first spray arm 6 is rotatably supported on the flow guiding seat 52. The central part of the lower wall surface of the first spray arm 6 is provided with a water inlet 61, and the upper wall surface is provided with a plurality of water spray holes which are arranged at intervals.
The second spray arm 8 is disposed in the wash chamber 51 and is supported above the first spray arm 6 by the diversion channel 9 in fluid communication with the first spray arm 6. The water guide channel 9 is vertically arranged above the first spray arm 6, the central part of the upper wall surface of the first spray arm 6 is provided with a water outlet 62 which is correspondingly connected with the lower port of the water guide channel 9, 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 water 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 and the inner edge, but the gap is extremely small, and the capacity loss caused by circumferential dispersion of water flow at the position 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 which is connected with the upper port of the diversion channel 9, and the upper wall surface is provided with a plurality of water spray holes which are arranged at intervals.
The second impeller 2 is located in the first spray arm 6, the lower part of the first impeller 1 is located below the first spray arm 6, the driving piece 7 is a motor, the motor is arranged at the bottom of the box 5, and the output end 71 penetrates through the bottom wall of the box 5 to be connected with the shaft 11 of the first impeller 1.
When the cleaning 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, lower water flow upwards draws through the first impeller 12 at the lower part of the first impeller 1 to keep corresponding water flow, and then the lower water flow is circumferentially dispersed through the second impeller 2, so that high water pressure is ensured, and the lower water flow has high cleaning force; the upper layer draws water upwards through the first blades 12 at the upper part of the first impeller 1, and keeps larger water flow, so that double-layer spraying is realized.
Claims (6)
1. The utility model provides a cleaning machine, includes box (5), first spray arm (6) and driving piece (7), the inside cavity of box (5) forms washing chamber (51), the lower part in washing chamber (51) is located to first spray arm (6), its characterized in that: the washing machine further comprises a second spray arm (8) and an impeller structure (a), wherein the second spray arm (8) is arranged in the washing cavity (51) and is supported above the first spray arm (6) through a diversion channel (9) and is in fluid communication with the first spray arm (6); a water inlet (61) is formed in the lower wall surface of the first spray arm (6), and a water outlet (62) corresponding to the lower port of the diversion channel (9) is formed in the top of the first spray arm;
the impeller structure (a) 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 coiled on the peripheral wall of the shaft (11) 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), and the second impeller (2) is provided with second blades (22) extending along the radial direction of the first impeller (1); the second impeller (2) further comprises an end cover (21) positioned above the second blades (22), an assembly hole (23) for the first impeller (1) to pass through is formed in the middle of the end cover (21), and the second blades (22) are distributed along the outer periphery of the assembly hole (23); a gap (24) is formed between the assembly hole (23) and the outer peripheral wall of the shaft (11); a notch (211) extending inwards along the radial direction is formed at the outer edge of the end cover (21); the width of the notch (211) is gradually reduced inwards from the outer edge of the end cover (21), and the inner end edge of the notch (211) is an arc-shaped structure (212) arched towards the shaft (11);
the upper portion of impeller structure (a) passes water inlet (61) and stretches 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 in first spray arm (6), first impeller (1) lower part is located first spray arm (6) below, drive piece (7) are located box (5) bottom and the output is passed box (5) diapire and is connected with axle (11) of first impeller (1).
2. The cleaning machine of claim 1, wherein: the end cap (21) is recessed radially inwardly from the rim.
3. The cleaning machine according to claim 1 or 2, characterized in that: the second impeller (2) is arranged at the middle upper part of the first impeller (1), and the inner edge of the assembly hole (23) is fixedly connected with the outer edge of the first blade (12).
4. The cleaning machine according to claim 1 or 2, characterized in that: 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 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 is the same as the rotating direction of the second blade (22).
5. The cleaning machine of claim 4, 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=K (L1+L2), and K=0.3-0.6; the plane where the inner end of the first part (221) and the axial lead of the first impeller are located is a, and an acute angle formed between the first part (221) and the plane a is theta, wherein theta is more than or equal to 20 degrees and less than or equal to 40 degrees.
6. The cleaning machine of claim 4, wherein: the acute angle formed between the first part (221) and the second part (222) is The edge of the first part (221) near the first impeller is directed to the first
An arc edge arched by the impeller, an included angle formed between a tangent line of the arc edge and the axial lead of the first impeller is theta 1,
30°≤θ1≤45°。
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113317741A CN113317741A (en) | 2021-08-31 |
| CN113317741B true CN113317741B (en) | 2023-08-18 |
Family
ID=77412582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010126609.9A Active CN113317741B (en) | 2020-02-28 | 2020-02-28 | Cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113317741B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113520260B (en) * | 2020-04-14 | 2022-11-25 | 宁波方太厨具有限公司 | Double-layer spraying system and cleaning machine with same |
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|---|---|
| CN113317741A (en) | 2021-08-31 |
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