CN219306642U

CN219306642U - Spray arm structure of dish washer and dish washer

Info

Publication number: CN219306642U
Application number: CN202223212405.0U
Authority: CN
Inventors: 王豪杰; 吴旭波; 梁之博; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-07-07
Anticipated expiration: 2032-12-01

Abstract

The utility model discloses a spray arm structure of a dish washing machine and the dish washing machine. The spray arm structure of the dish washer comprises a spray arm body arranged along a first direction and a plurality of spray holes formed in the spray arm body, a water passage is formed in the spray arm body, the spray holes are arranged on the spray arm body at intervals along the first direction and are communicated with the water passage, the cross section area of each spray hole from an inlet to an outlet is gradually increased, and the cross section area of each spray hole from the center to two sides is gradually reduced. The dish washer provided by the utility model comprises the spray arm structure of the dish washer.

Description

Spray arm structure of dish washer and dish washer

Technical Field

The utility model relates to the technical field of kitchen electricity, in particular to a spray arm structure of a dish washing machine and the dish washing machine.

Background

The spray arm of the existing dish washing machine is provided with a certain number of spray holes on the surface, the spray holes are in different angles, water flows out of the spray holes to form water columns, the spray arm rotates in the horizontal plane around the central rotating shaft under the reaction force of the water flow, and the water flow sprayed out of each spray hole sweeps in the circumference of a certain fixed direction in space to wash tableware, so that the aim of washing the tableware is achieved.

The spray holes on the spray arm in the prior art are usually arranged into regular round holes or square holes, when water flow is sprayed out along the spray holes, the tableware is usually flushed by radial water columns, and the positions and the areas of the tableware flushed by the water flow are limited by the distribution of the spray holes, so that spray dead angles exist in the inner cavity of the dish washer, and the tableware cannot be completely cleaned under the dead areas of the spray holes.

As the solution to the problems, more spray holes are usually formed in the spray arm so as to reduce spray dead zones and improve cleaning capacity, but more spray holes are formed in the spray arm, so that the pressure of a spray water outlet is further reduced, the spray scouring force is insufficient, and the washing effect cannot meet the requirements.

Accordingly, there is a need for a spray arm structure of a dishwasher to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve one of the problems in the prior art to at least a certain extent, and therefore, the utility model provides a spray arm structure of a dish washer, which can solve the problem that a washing dead angle appears in the spray arm in the prior art in the spraying process, and can ensure that the sprayed water flow has enough scouring force and ensure the washing effect.

The above object is achieved by the following technical scheme:

the utility model provides a spray arm structure of dish washer, includes the spray arm body that sets up along the first direction and sets up a plurality of orifices on the spray arm body, be provided with the water channel in the spray arm body, a plurality of the orifice is in along first direction interval setting on the spray arm body and with the water channel intercommunication, the orifice increases gradually from the cross-sectional area of entry to export, the orifice reduces gradually from the cross-sectional area of center to both sides.

Optionally, the nozzle has an included angle a between an opposite generatrix passing through the center line of the nozzle in a first direction, and an included angle b between an opposite generatrix passing through the center line of the nozzle in a second direction, and the second direction is perpendicular to the first direction, and 0 ° < a < 90 °, and 0 ° < b < 90 °.

Optionally 30 DEG < a < 60 DEG, 30 DEG < b < 45 deg.

Optionally, the spray arm body is further provided with a thrust boss, the spray hole is formed on the thrust boss, the spray hole formed in one side portion of the spray arm body is a first spray hole group, the spray hole formed in the other side portion of the spray arm body is a second spray hole group, and the first spray hole group and the second spray hole group are obliquely arranged in opposite directions.

Optionally, a pressurizing flow channel communicated with the spray hole is further arranged in the spray arm body and used for increasing water pressure sprayed out of the spray hole.

Optionally, the cross-sectional area of the pressurized flow channel is smaller than the cross-sectional area of the thrust boss at its widest point.

Optionally, the surface of the thrust boss is a plane, a circular arc inner hole is formed in one side, facing the water channel, of the thrust boss, and the circular arc inner hole is communicated with the spray hole.

Optionally, the thrust boss is an arc boss, so that the surface of the thrust boss is an arc surface, an arc inner hole is formed on one side of the thrust boss facing the water channel, and the arc inner hole is communicated with the spray hole.

Optionally, the spray arm body includes first spray arm board, second spray arm board and spray arm water inlet, first spray arm board with the second spray arm board is connected and encloses and closes and form the water passage, the orifice is seted up on the first spray arm board, spray arm water inlet installs the middle part of second spray arm board.

Another aspect of the present utility model provides a dishwasher, comprising the spray arm structure of the dishwasher.

Compared with the prior art, the utility model at least comprises the following beneficial effects:

the spray arm structure of the dish washer provided by the utility model comprises a spray arm body arranged along a first direction and a plurality of spray holes arranged on the spray arm body, wherein a water passage is arranged in the spray arm body, the plurality of spray holes are arranged on the spray arm body at intervals along the first direction and are communicated with the water passage, the cross section area of the spray holes from an inlet to an outlet is gradually increased, and the cross section area of the spray holes from the center to two sides is gradually reduced. The spray hole is adopted to gradually increase the cross-sectional area from the inlet to the outlet, so that the water flow sprayed from the spray hole can be umbrella-shaped (the spray range of the water flow is gradually increased from bottom to top or from top to bottom), the water sprayed between two adjacent spray holes can completely cover the gap between the two adjacent spray holes, the spray area is increased, the problem that a washing dead angle appears in the spray arm in the spray process in the prior art is solved, meanwhile, the cross-sectional area of the sprayed water flow is narrowed by adopting the mode that the cross-sectional area of the spray hole is gradually reduced from the center to two sides, and further the sufficient scouring force of the sprayed water flow is ensured, and the washing effect is ensured.

Drawings

Fig. 1 is a schematic perspective view of a spray arm structure of a dishwasher according to an embodiment of the present utility model;

fig. 2 is an enlarged view at G1 in fig. 1;

FIG. 3 is a top view of a spray arm structure of a dishwasher according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view taken at C1-C1 of FIG. 3;

fig. 5 is an enlarged view at G2 in fig. 4;

FIG. 6 is a cross-sectional view taken at D1-D1 of FIG. 3;

fig. 7 is an enlarged view at G3 in fig. 6;

fig. 8 is a schematic structural view of a first spray arm plate of a spray arm structure of a dishwasher according to an embodiment of the present utility model;

fig. 9 is an enlarged view at G4 in fig. 8;

fig. 10 is a schematic view showing a spray arm structure of a dishwasher according to an embodiment of the present utility model in a state of spraying water;

FIG. 11 is a schematic perspective view of a spray arm structure of a dishwasher according to another embodiment of the present utility model;

FIG. 12 is an enlarged view at H1 in FIG. 11;

FIG. 13 is a top view of a spray arm structure of a dishwasher according to another embodiment of the present utility model;

FIG. 14 is a cross-sectional view taken at C2-C2 of FIG. 13;

FIG. 15 is an enlarged view of FIG. 14 at H2;

FIG. 16 is a cross-sectional view taken at D2-D2 of FIG. 13;

FIG. 17 is an enlarged view at H3 of FIG. 16;

fig. 18 is a schematic structural view of a first spray arm plate of a spray arm structure of a dishwasher according to another embodiment of the present utility model;

fig. 19 is an enlarged view at H4 in fig. 18.

In the figure:

1. a first spray arm plate; 11. a spray hole; 12. a thrust boss; 13. a circular arc inner hole; 14. a pressurized flow passage;

2. the second spray arm plate;

3. and a spray arm water inlet part.

Detailed Description

The following examples illustrate the utility model, but the utility model is not limited to these examples. Modifications and equivalents of some of the technical features of the specific embodiments of the present utility model may be made without departing from the spirit of the present utility model, and they are all included in the scope of the claimed utility model.

Referring to fig. 1-19, the present utility model provides a spray arm structure of a dishwasher, which includes a spray arm body disposed along a first direction (i.e. a direction indicated by an arrow E in fig. 3) and a plurality of spray holes 11 disposed on the spray arm body, wherein a water channel is disposed in the spray arm body, the plurality of spray holes 11 are disposed on the spray arm body at intervals along the first direction and are communicated with the water channel, a cross-sectional area of the spray holes 11 from an inlet to an outlet is gradually increased, and a cross-sectional area of the spray holes 11 from a center to two sides is gradually decreased. The mode that the cross-sectional area of the spray hole 11 from the inlet to the outlet is gradually increased is adopted, so that water flow sprayed from the spray hole 11 can be umbrella-shaped (as shown in fig. 10, the spray range of the water flow is gradually increased from bottom to top or from top to bottom), the water sprayed between two adjacent spray holes 11 can completely cover the gap between the two adjacent spray holes 11, the spray area is further increased, the problem that a washing dead angle occurs in the spray arm in the spray process in the prior art is solved, meanwhile, the mode that the cross-sectional area of the spray hole 11 from the center to two sides is gradually reduced is adopted to narrow the cross-sectional area of the sprayed water flow, and therefore the sprayed water flow is guaranteed to have enough scouring force, and the washing effect is guaranteed.

Optionally, the nozzle hole 11 has an included angle a between an opposite generatrix of the center line of the nozzle hole 11 in the first direction, and the nozzle hole 11 has an included angle b between an opposite generatrix of the center line of the nozzle hole 11 in the second direction (i.e. the direction indicated by the arrow F in fig. 3), the second direction being perpendicular to the first direction, and 0 ° < a < 90 °,0 ° < b < 90 °, so that.

Optionally 30 DEG < a < 60 DEG, 30 DEG < b < 45 deg.

Optionally, the spray arm body is further provided with a thrust boss 12, the spray hole 11 is formed on the thrust boss 12, the spray hole 11 formed on one side of the spray arm body is a first spray hole group, the spray hole 11 formed on the other side of the spray arm body is a second spray hole group, and the first spray hole group and the second spray hole group are obliquely arranged in opposite directions so as to push the spray arm to rotate while spraying water from the spray hole 11.

Optionally, a pressurizing flow channel 14 communicated with the spray hole 11 is further arranged in the spray arm body, so as to increase the water pressure sprayed out of the spray hole 11.

Alternatively, the cross-sectional area of the pressurized flow passage 14 is smaller than the cross-sectional area of the widest part of the thrust boss 12, and the water pressure is increased by narrowing the water inlet passage.

Referring to fig. 1-10, in an embodiment, optionally, the surface of the thrust boss 12 is a plane, a circular arc inner hole 13 is disposed on a side of the thrust boss 12 facing the water channel, and the circular arc inner hole 13 is communicated with the nozzle 11, so that the water flow can be further pressurized when passing through the circular arc inner hole, thereby increasing the water pressure sprayed from the nozzle 11.

Referring to fig. 11-19, in another embodiment, alternatively, the thrust boss 12 is an arc boss, so that the surface of the thrust boss 12 is an arc surface, a circular arc inner hole 13 is formed on one side of the thrust boss 12 facing the water channel, and the circular arc inner hole 13 is communicated with the spray hole 11, so that the water flow can be further pressurized when passing through the circular arc inner hole, thereby increasing the water pressure sprayed from the spray hole 11.

Optionally, the spray arm body includes first spray arm board 1, second spray arm board 2 and spray arm water inlet 3, and first spray arm board 1 is connected and encloses with second spray arm board 2 and closes and form the water channel, and orifice 11 is seted up on first spray arm board 1, and spray arm water inlet 3 installs at the middle part of second spray arm board 2. The spray arm water inlet part 3 is used for communicating with a water supply system of the dish washer.

What has been described above is merely some embodiments of the present utility model. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the utility model.

Claims

1. The utility model provides a spray arm structure of dish washer, its characterized in that includes the spray arm body that sets up along the first direction and sets up a plurality of orifice (11) on the spray arm body, this internal water channel that leads to that is provided with of spray arm, a plurality of orifice (11) are along first direction interval setting on the spray arm body and with water channel intercommunication, the cross-sectional area of orifice (11) from the entry to export increases gradually, the cross-sectional area of orifice (11) from center to both sides reduces gradually.

2. The spray arm structure of a dishwasher according to claim 1, characterized in that the spray orifice (11) has an angle a between an opposite generatrix of the spray orifice (11) passing through the center line of the spray orifice (11) in a first direction, the spray orifice (11) has an angle b between an opposite generatrix of the spray orifice (11) passing through the center line of the spray orifice in a second direction, the second direction being arranged perpendicular to the first direction, 0 ° < a < 90 °,0 ° < b < 90 °.

3. The spray arm structure of a dishwasher according to claim 2, characterized in that 30 ° < a < 60 °,30 ° < b < 45 °.

4. A spray arm structure of a dishwasher according to any one of claims 1-3, wherein a thrust boss (12) is further provided on the spray arm body, the spray holes (11) are provided on the thrust boss (12), the spray holes (11) provided on one side of the spray arm body are first spray hole groups, the spray holes (11) provided on the other side of the spray arm body are second spray hole groups, and the first spray hole groups and the second spray hole groups are inclined in opposite directions.

5. The boom structure according to claim 4, wherein a pressurizing flow passage (14) communicating with the nozzle hole (11) is further provided in the interior of the boom body for increasing the water pressure ejected from the nozzle hole (11).

6. The spray arm structure according to claim 5, wherein the cross-sectional area of the pressurizing flow path (14) is smaller than the cross-sectional area of the thrust boss (12) at the widest point.

7. The spray arm structure of a dishwasher according to claim 4, characterized in that the surface of the thrust boss (12) is a plane, a circular arc-shaped inner hole (13) is arranged on one side of the thrust boss (12) facing the water passage, and the circular arc-shaped inner hole (13) is communicated with the spray hole (11).

8. The spray arm structure of a dishwasher according to claim 4, wherein the thrust boss (12) is an arc boss such that a surface of the thrust boss (12) is an arc surface, a side of the thrust boss (12) facing the water passage forms an arc-shaped inner hole (13), and the arc-shaped inner hole (13) communicates with the spray hole (11).

9. The spray arm structure of a dishwasher according to claim 4, wherein the spray arm body comprises a first spray arm plate (1), a second spray arm plate (2) and a spray arm water inlet portion (3), the first spray arm plate (1) is connected with the second spray arm plate (2) and encloses to form the water passage, the spray hole (11) is formed in the first spray arm plate (1), and the spray arm water inlet portion (3) is mounted in the middle of the second spray arm plate (2).

10. A dishwasher, characterized by comprising a spray arm structure of a dishwasher according to any one of claims 1-9.