CN114680783A - Spraying arm for cleaning machine - Google Patents
Spraying arm for cleaning machine Download PDFInfo
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- CN114680783A CN114680783A CN202011644948.2A CN202011644948A CN114680783A CN 114680783 A CN114680783 A CN 114680783A CN 202011644948 A CN202011644948 A CN 202011644948A CN 114680783 A CN114680783 A CN 114680783A
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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
- A47L15/4278—Nozzles
- A47L15/428—Rotary nozzles
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Abstract
The invention relates to a spray arm for a cleaning machine, which comprises a body extending along the length direction, wherein a water collecting cavity is arranged in the middle of the body, a first flow channel communicated with the water collecting cavity is arranged on one side of the body, a second flow channel communicated with the water collecting cavity is arranged on the other side of the body, molded lines corresponding to the water collecting cavity comprise a first line segment and a second line segment which are centrosymmetric, the first line segment comprises a first arc segment and a second arc segment which are mutually connected and have different radians, and the second line segment comprises a third arc segment and a fourth arc segment which are mutually connected and have different radians. Along the flow direction of the water flow, the first line segment and the second line segment enable the water collecting cavity to form an involute volute structure, and the structure is favorable for increasing the water pressure of the output water flow, so that the water flow jet lift is improved; the first line segment and the second line segment respectively comprise three arc segments which are mutually connected and have different radians, the structure realizes the centrifugal effect of the volute by using the arc structures as few as possible, reduces the energy loss and is beneficial to further improving the lift of the jet water flow.
Description
Technical Field
The invention relates to the technical field of dish washer accessories, in particular to a spray arm for a cleaning machine.
Background
A dishwasher is an apparatus that sprays cold or hot water to a dish to remove dirt adhered to the dish and wash the dish. Common dish washers in the market at present have a table type, a cabinet type, a water tank type and the like, wherein only the water tank type dish washer applies an open water pump, namely, the water pump is combined with a spray arm, and the spray arm is used as a part of a water pump volute and has the functions of drawing water and jetting water columns so as to be convenient to disassemble and clean and keep a better water flow effect.
The applicant's prior application ZL201310752030.3 "open sink cleaning machine" discloses the above-mentioned water pump structure, the rotating spray arm is used as the water outlet component of the water pump, the middle bottom of the rotating spray arm is formed with an upper receiving cavity for receiving the upper part of the blade, the rotating spray arm is provided with a flow channel communicated with the upper receiving cavity, the upper receiving cavity is located in the middle of the rotating spray arm, and the flow channel is located at the two sides of the upper receiving cavity.
In the in-service use, discover that above-mentioned spray arm has great loss of ability when the pump water, has influenced the lift of spraying the water column, when being applied to in the less basin formula dish washer in washing space, the lift of above-mentioned spray arm can satisfy the washing demand, but when the whole high back that increases in washing chamber, the spraying lift of above-mentioned spray arm is difficult to satisfy the washing demand.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a spray arm for a cleaning machine, which reduces the capacity loss and improves the water jet lift by optimizing a flow channel structure.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a spray arm for cleaning machine, has the chamber of catchmenting including having the body that extends along length direction, this body middle part, and this body one side has the first runner that is linked together with the chamber of catchmenting, and this body opposite side has the second runner that is linked together with the chamber of catchmenting, it has the water inlet that is linked together with the chamber of catchmenting to open on the body diapire, it has the hole for water spraying to open on the roof of body and/or the lateral wall, the molded lines that the chamber of catchmenting corresponds are including the first circular arc section DA that is central symmetry, second circular arc section HE, first circular arc section DA is including linking up in proper order and the different first circular arc section DC of radian, second circular arc section CB, third circular arc section BA, second circular arc section HE is including linking up in proper order and the different fourth circular arc section HG of radian, fifth circular arc section GF, sixth circular arc section FE.
In the above solution, the center of the water collecting cavity is used as an origin O, a horizontal line passing through the origin O is used as an X-axis, a vertical line passing through the origin O is used as a Y-axis, and the first arc segment DC is:
(x-3.73)2+(y-3.73)2＝26.532(315°＜μ≤360°)，
and mu is a coordinate system angle corresponding to the first arc segment DC.
The second arc segment CB is:
(x+4.2)2+(y-4.2)2＝34.532(0°＜α≤45°)，
and alpha is a coordinate system angle corresponding to the second circular arc segment CB.
The third arc segment BA is:
(x+5.99)2+y2＝38.472(45°β≤90°)，
wherein β is a coordinate system angle corresponding to the third arc segment BA.
The fourth arc segment HG is:
(x+3.73)2+(y+3.73)2＝26.532(135°＜γ≤180°)，
wherein γ is a coordinate system angle corresponding to the fourth arc segment HG.
The fifth arc segment GF is:
(x-4.2)2+(y+4.2)2＝34.532(180°＜δ≤225°)，
wherein δ is a coordinate system angle corresponding to the fifth arc segment GF.
The sixth arc segment FE is:
(x-5.99)2+y2＝38.472(225°＜θ≤270°)，
and theta is a coordinate system angle corresponding to the sixth arc segment FE.
By adopting the structure, an involute volute structure is formed, water flows from the water collecting cavity to the left throat and the right throat along the wall surface of the volute, and the water pressure is gradually increased by the involute wall surface, so that the lift of the water flow ejected by the spray arm is improved; the throat is connected with the volute and the rectangular flow channel of the spray arm, and the water pressure is increased again in a narrow and wide mode, so that the water flow lift is improved.
In the invention, the molded line corresponding to the first flow channel is provided with a first straight line section QR horizontally arranged above an X axis and a second straight line section ZZ1 horizontally arranged below the X axis, the starting end D of the first circular arc section DC is connected with the first straight line section QR through a third straight line section NP along the anticlockwise direction, and a fourth straight line section XY is connected between the tail end E of the sixth circular arc section FE and the second straight line section KS. This structure is advantageous in reducing energy loss.
Preferably, the starting end D of the first arc segment DC is smoothly connected with the third straight line segment NP through the first arc transition segment DN, and the third straight line segment NP is smoothly connected with the first straight line segment QR through the second arc transition segment PQ. By adopting the structure, the capacity loss is further reduced.
Preferably, a first straight line connection section EW and a third circular arc transition section WX are sequentially connected between the tail end E of the sixth circular arc section FE and a fourth straight line section XY, the first straight line connection section EW is horizontally arranged, the third circular arc transition section WX is respectively in tangential connection with the first straight line connection section EW and the fourth straight line section XY, and the fourth straight line section XY and the second straight line section ZZ1 are connected with a fourth circular arc transition section YZ respectively in tangential connection with the fourth straight line section XY and the second straight line section ZZ 1. By adopting the structure, the capacity loss is further reduced.
In the invention, the molded line corresponding to the second flow channel is provided with a fifth straight line segment LM horizontally arranged above the X axis and a sixth straight line segment UV horizontally arranged below the X axis, the starting end H of the fourth arc segment HG is connected with the sixth straight line segment UV through a seventh straight line segment ST along the anticlockwise direction, and an eighth straight line segment JK is connected between the tail end A of the third arc segment BA and the fifth straight line segment LM.
Preferably, a second straight-line joining section AI and a fifth circular-arc transition section IJ are sequentially connected between the tail end a of the third circular-arc section BA and an eighth straight-line section JK, the second straight-line joining section AI is horizontally arranged, the fifth circular-arc transition section IJ is respectively in tangent connection with the second straight-line joining section AI and the eighth straight-line section JK, and a sixth circular-arc transition section KL is connected between the eighth straight-line section JK and the fifth straight-line section LM. By adopting the structure, the capacity loss is further reduced.
Preferably, the starting end H of the fourth arc segment HG is smoothly connected with the seventh straight line segment ST through a seventh arc transition segment HS, and the seventh straight line segment ST is smoothly connected with the sixth straight line segment UV through an eighth arc transition segment TU. By adopting the structure, the capacity loss is further reduced.
Preferably, the centers of the first flow channel and the second flow channel are located on an X axis, and the width of the first flow channel and the width of the second flow channel on a Y axis are 0.2-0.5 times of the width of the water collecting cavity on the Y axis.
Compared with the prior art, the invention has the advantages that: the molded line corresponding to the water collecting cavity comprises a first line segment and a second line segment which are centrosymmetric, and the first line segment and the second line segment enable the water collecting cavity to form an involute volute structure along the flowing direction of water flow, so that the structure is favorable for increasing the water pressure of output water flow, and the water flow jet lift is improved; the first line segment and the second line segment of the invention both comprise three sections of arc segments which are mutually connected and have different radians, and the structure realizes the centrifugal action of the volute by using the arc structure as less as possible, reduces the energy loss and is beneficial to further improving the lift of the jet water flow.
Drawings
FIG. 1 is a schematic structural view of a spray arm according to an embodiment of the present invention;
FIG. 2 is a schematic view of another angle of the spray arm according to the embodiment of the present invention;
FIG. 3 is a cross-sectional view of a spray arm in an embodiment of the present invention;
fig. 4 is a schematic profile view of a spray arm 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 3, the spray arm for a cleaning machine of the present embodiment includes a body 1 extending along a length direction, a water collection chamber 10 is provided in a middle portion of the body 1, a first flow channel 11 communicated with the water collection chamber 10 is provided on one side of the body 1, a second flow channel 12 communicated with the water collection chamber 10 is provided on the other side of the body 1, a water inlet 13 communicated with the water collection chamber 10 is provided on a bottom wall of the body 1, and a water spray hole 14 communicated with the first flow channel 11 and the second flow channel 12 is provided on a top wall of the body 1.
In this embodiment, as shown in fig. 4, the molded line corresponding to the water collecting cavity 10 includes a first line DA and a second line HE that are centrosymmetric, the first line DA includes a first arc DC, a second arc CB and a third arc BA that are sequentially connected and have different radians, and the second line HE includes a fourth arc HG, a fifth arc GF and a sixth arc FE that are sequentially connected and have different radians.
Specifically, the center of the water collecting cavity 10 is used as an origin O, a horizontal line passing through the origin O is used as an X-axis, a vertical line passing through the origin O is used as a Y-axis, and the first arc segment DC is:
(x-3.73)2+(y-3.73)2＝26.532(315°＜μ≤360°)，
wherein μ is a coordinate system angle corresponding to the first arc segment DC.
The second arc segment CB is:
(x+4.2)2+(y-4.2)2＝34.532(0°＜α≤45°)，
wherein α is the coordinate system angle corresponding to the second arc segment CB.
The third arc segment BA is:
(x+5.99)2+y2＝38.472(45°＜β≤90°)，
wherein β is a coordinate system angle corresponding to the third arc segment BA.
The fourth arc segment HG is:
(x+3.73)2+(y+3.73)2＝26.532(135°＜γ≤180°)，
wherein γ is a coordinate system angle corresponding to the fourth arc segment HG.
The fifth arc segment GF is:
(x-4.2)2+(y+4.2)2＝34.532(180°＜δ≤225°)，
wherein δ is the coordinate system angle corresponding to the fifth arc segment GF.
The sixth arc segment FE is:
(x-5.99)2+y2＝38.472(225°＜θ≤270°)，
and theta is a coordinate system angle corresponding to the sixth arc segment FE.
In this embodiment, the arc radii actually adopted by the first arc segment DC and the fourth arc segment HG are 29mm, the arc radii actually adopted by the second arc segment CB and the fifth arc segment GF are 30mm, and the arc radii actually adopted by the third arc segment BA and the sixth arc segment FE are 34 mm. By adopting the structure, an involute volute structure is formed, water flows from the water collecting cavity to the left throat and the right throat along the wall surface of the volute, and the water pressure is gradually increased by the involute wall surface, so that the lift of the water flow ejected by the spray arm is improved; the throat is connected with the volute and the rectangular flow channel of the spray arm, and the water pressure is increased again in a narrow and wide mode, so that the water flow lift is improved.
In this embodiment, the molded line corresponding to the first flow channel 11 has a first straight line segment QR horizontally disposed above the X axis and a second straight line segment ZZ1 horizontally disposed below the X axis, and along the counterclockwise direction, the starting end D of the first arc segment DC is connected to the first straight line segment QR through a third straight line segment NP, and a fourth straight line segment XY is connected between the end E of the sixth arc segment FE and the second straight line segment KS.
The starting end D of the first arc section DC is smoothly connected with the third straight-line section NP through a first arc transition section DN, and the radius of the first arc transition section DN is 1.5 mm; the third straight line segment NP is smoothly connected with the first straight line segment QR through a second circular arc transition section PQ, and the radius of the second circular arc transition section PQ is 60 mm. A first straight-line connecting section EW and a third circular-arc transition section WX are sequentially connected between the tail end E of the sixth circular-arc section FE and the fourth straight-line section XY, the first straight-line connecting section EW is horizontally arranged, the third circular-arc transition section WX is respectively in tangent connection with the first straight-line connecting section EW and the fourth straight-line section XY, the radius of the third circular-arc transition section WX is 30mm, the fourth straight-line section XY and the second straight-line section ZZ1 are connected with a fourth circular-arc transition section YZ respectively in tangent connection with the fourth straight-line connecting section EW and the fourth straight-arc transition section YZ, and the radius of the fourth circular-arc transition section YZ is 40 mm. By adopting the structure, the capacity loss is favorably reduced.
In this embodiment, the molded line corresponding to the second flow channel 12 has a fifth straight line segment LM horizontally disposed above the X axis and a sixth straight line segment UV horizontally disposed below the X axis, and along the counterclockwise direction, the start end H of the fourth arc segment HG is connected to the sixth straight line segment UV through the seventh straight line segment ST, and an eighth straight line segment JK is connected between the end a of the third arc segment BA and the fifth straight line segment LM.
The second straight-line joining section AI and the fifth circular arc transition section IJ are sequentially connected between the tail end A of the third circular arc section BA and the eighth straight-line section JK, the radius of the fifth circular arc transition section IJ is 30mm, the second straight-line joining section AI is horizontally arranged, the fifth circular arc transition section IJ is respectively tangent to the second straight-line joining section AI and the eighth straight-line section JK, a sixth circular arc transition section KL which is respectively tangent to the eighth straight-line section JK and the fifth straight-line section LM is connected between the eighth straight-line section JK and the fifth straight-line section LM, and the radius of the sixth circular arc transition section KL is 40 mm. The starting end H of the fourth arc section HG is smoothly connected with the seventh straight-line section ST through a seventh arc transition section HS, the radius of the seventh arc transition section HS is 1.5mm, the seventh straight-line section ST is smoothly connected with the sixth straight-line section UV through an eighth arc transition section TU, and the radius of the eighth arc transition section TU is 60 mm. By adopting the structure, the capacity loss is favorably reduced.
The centers of the first flow channel 11 and the second flow channel 12 of the present embodiment are located on the X axis, and the widths of the first flow channel 11 and the second flow channel 12 on the Y axis are 0.2 to 0.5 times of the widths of the water collecting cavity 10 on the Y axis.
The molded line corresponding to the water collection cavity 10 in this embodiment includes a first line segment DA and a second line segment HE that are centrosymmetric, and the first line segment DA and the second line segment HE enable the water collection cavity 10 to form an involute volute structure along the flow direction of the water flow, which is beneficial to increasing the water pressure of the output water flow, thereby increasing the water flow jet lift; the first line section DA and the second line section HE respectively comprise three arc sections which are mutually connected and have different radians, the structure realizes the centrifugal action of the volute by using the arc structure as less as possible, reduces the energy loss and is beneficial to further improving the lift of the jet water flow.
Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the invention, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.
Claims (14)
1. The utility model provides a spray arm for cleaning machine, includes and has body (1) that extends along length direction, and this body (1) middle part has a chamber (10) that catchments, and this body (1) one side has first runner (11) that are linked together with chamber (10) that catchments, and this body (1) opposite side has second runner (12) that are linked together with chamber (10) that catchments, it has water inlet (13) that are linked together with chamber (10) that catchments to open on body (1) diapire, it has hole for water spraying (14) to open on the roof and/or the lateral wall of body (1), its characterized in that: the molded lines that catchment chamber (10) corresponds are including being central symmetry's first line section DA, second line section HE, first line section DA is including linking up in proper order and the different first circular arc section DC of radian, second circular arc section CB, third circular arc section BA, second line section HE is including linking up in proper order and the different fourth circular arc section HG of radian, fifth circular arc section GF, sixth circular arc section FE.
2. The spray arm for a cleaning machine of claim 1, wherein: the center of the water collecting cavity (10) is used as an original point O, a horizontal line passing through the original point O is used as an X axis, a vertical line passing through the original point O is used as a Y axis, and the first arc section DC is
(x-3.73)2+(y-3.73)2＝26.532(315°＜μ≤360°)，
And mu is a coordinate system angle corresponding to the first arc segment DC.
3. The spray arm for a cleaning machine of claim 2 wherein: the second arc segment CB is
(x+4.2)2+(y-4.2)2＝34.532(0°＜α≤45°)，
And alpha is a coordinate system angle corresponding to the second arc segment CB.
4. The spray arm for a cleaning machine of claim 2 wherein: the third arc segment BA is
(x+5.99)2+y2＝38.472(45°＜β≤90°)，
Wherein β is a coordinate system angle corresponding to the third arc segment BA.
5. The spray arm for a cleaning machine of claim 2 wherein: the fourth arc segment HG is
(x+3.73)2+(y+3.73)2＝26.532(135°＜γ≤180°)，
Wherein γ is a coordinate system angle corresponding to the fourth arc segment HG.
6. The spray arm for a cleaning machine of claim 2 wherein: the fifth arc segment GF is
(x-4.2)2+(y+4.2)2＝34.532(180°＜δ≤225°)，
And δ is a coordinate system angle corresponding to the fifth arc segment GF.
7. The spray arm for a cleaning machine of claim 2 wherein: the sixth arc segment FE is
(x-5.99)2+y2＝38.472(225°＜θ≤270°)，
And theta is a coordinate system angle corresponding to the sixth arc segment FE.
8. The spray arm for a cleaning machine of any one of claims 2 to 7, wherein: the molded line corresponding to the first flow channel (11) is provided with a first straight line section QR horizontally arranged above an X axis and a second straight line section ZZ1 horizontally arranged below the X axis, the starting end D of the first circular arc section DC is connected with the first straight line section QR through a third straight line section NP along the anticlockwise direction, and a fourth straight line section XY is connected between the tail end E of the sixth circular arc section FE and the second straight line section KS.
9. The spray arm for a cleaning machine of claim 8 wherein: the starting end D of the first arc section DC is smoothly connected with the third straight line section NP through a first arc transition section DN, and the third straight line section NP is smoothly connected with the first straight line section QR through a second arc transition section PQ.
10. The spray arm for a cleaning machine of claim 8 wherein: a first straight line connecting section EW and a third circular arc transition section WX are sequentially connected between the tail end E of the sixth circular arc section FE and a fourth straight line section XY, the first straight line connecting section EW is horizontally arranged, the third circular arc transition section WX is respectively in tangential connection with the first straight line connecting section EW and the fourth straight line section XY, and the fourth straight line section XY and the second straight line section ZZ1 are connected with a fourth circular arc transition section YZ respectively in tangential connection with the fourth straight line section EW and the fourth straight line section ZZ 1.
11. The spray arm for a cleaning machine of any one of claims 2 to 7, wherein: the molded lines corresponding to the second flow channel (12) are provided with a fifth straight line segment LM and a sixth straight line segment UV, the fifth straight line segment LM is horizontally arranged above the X axis, the sixth straight line segment UV is horizontally arranged below the X axis, the starting end H of the fourth circular arc segment HG is connected with the sixth straight line segment UV through a seventh straight line segment ST in the anticlockwise direction, and an eighth straight line segment JK is connected between the tail end A of the third circular arc segment BA and the fifth straight line segment LM.
12. The spray arm for a cleaning machine of claim 11 wherein: a second straight-line joining section AI and a fifth circular arc transition section IJ are sequentially connected between the tail end A of the third circular arc section BA and an eighth straight-line section JK, the second straight-line joining section AI is horizontally arranged, the fifth circular arc transition section IJ is respectively in tangent connection with the second straight-line joining section AI and the eighth straight-line section JK, and a sixth circular arc transition section KL is connected between the eighth straight-line section JK and the fifth straight-line section LM in tangent connection with the eighth straight-line section JK and the eighth straight-line section LM.
13. The spray arm for a cleaning machine of claim 11 wherein: the starting end H of the fourth arc section HG is smoothly connected with the seventh straight-line section ST through a seventh arc transition section HS, and the seventh straight-line section ST is smoothly connected with the sixth straight-line section UV through an eighth arc transition section TU.
14. The spray arm for a cleaning machine of any one of claims 2 to 7 wherein: the centers of the first flow channel (11) and the second flow channel (12) are located on an X axis, and the widths of the first flow channel (11) and the second flow channel (12) on a Y axis are 0.2-0.5 times of the width of the water collecting cavity (10) on the Y axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644948.2A CN114680783A (en) | 2020-12-31 | 2020-12-31 | Spraying arm for cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011644948.2A CN114680783A (en) | 2020-12-31 | 2020-12-31 | Spraying arm for cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114680783A true CN114680783A (en) | 2022-07-01 |
Family
ID=82135994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011644948.2A Pending CN114680783A (en) | 2020-12-31 | 2020-12-31 | Spraying arm for cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114680783A (en) |
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2020
- 2020-12-31 CN CN202011644948.2A patent/CN114680783A/en active Pending
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