CN219846468U

CN219846468U - Nozzle and spray arm for cleaning machine and cleaning machine

Info

Publication number: CN219846468U
Application number: CN202320984032.4U
Authority: CN
Inventors: 陆泽杰
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2023-04-24
Filing date: 2023-04-24
Publication date: 2023-10-20
Anticipated expiration: 2033-04-24

Abstract

The utility model relates to a nozzle, a spray arm and a cleaning machine for the cleaning machine, wherein the nozzle comprises a flow channel with a hollow interior, the top wall of the nozzle is provided with at least two water spray ports which are obliquely arranged, the water spray ports are arranged at intervals along a circumferential direction and used for spraying water columns which can drive the nozzle to rotate along a first direction, and the nozzle also comprises a spray port used for spraying water columns which can drive the nozzle to rotate along a second direction, and the second direction is opposite to the first direction. The water jet provided by the utility model is used for driving the nozzle to rotate along a first direction through the water flow reaction force, the jet orifice is used for providing a force opposite to the first direction, and the force counteracts a part of the rotating force of the nozzle along the first direction, so that the influence of the water flow impact in the nozzle on the rotation of the nozzle is reduced, the rotation speed of the nozzle is balanced, and the rotation stability of the nozzle is improved; meanwhile, the water column sprayed by the spraying port is also used for cleaning tableware as the water spraying port, so that the spraying flow is not wasted, and the cleaning effect is improved.

Description

Nozzle and spray arm for cleaning machine and cleaning machine

Technical Field

The utility model relates to the technical field of dish washing machines, in particular to a nozzle, a spray arm and a cleaning machine for cleaning tableware, fruits and vegetables.

Background

A dishwasher is generally provided with a shower arm for washing tableware or fruits and vegetables by spraying a water column.

The Chinese patent No. CN204445748U discloses a dishwasher sprayer and a dishwasher (application No. CN 201520047405.0), wherein the sprayer comprises a water storage cavity, a spraying surface and a mounting surface, a plurality of spraying holes communicated with the water storage cavity are formed in the spraying surface, a water inlet is formed in the mounting surface, a spray head is arranged on the spraying surface, at least two spray head spraying holes are formed in the spray head, a water channel communicated with the water storage cavity is formed in the spray head, and the spray head spraying holes are communicated with the water channel. When the sprayer rotates to spray, the spray heads on the sprayer spray simultaneously, and as the spray heads are provided with at least two spray head spray holes, the effective spray area is increased, and the spray dead angle is reduced.

The sprayer of above-mentioned structure is favorable to reducing and washs the dead angle, but because the rotation of nozzle is driven through rivers viscous force and is rotated, and water pressure often is unstable, this leads to the nozzle to rotate unstablely or the rotational speed is too high, takes place the jamming problem easily.

Disclosure of Invention

The first technical problem to be solved by the present utility model is to provide a nozzle for a cleaning machine, which balances rotation speed and improves rotation stability by counteracting part of rotation force.

The second technical problem to be solved by the present utility model is to provide a spray arm with the nozzle, aiming at the current state of the art.

The third technical problem to be solved by the utility model is to provide a cleaning machine with the spray arm aiming at the current state of the art.

The utility model solves at least one of the technical problems by adopting the following technical proposal:

the utility model provides a nozzle for cleaning machine, includes inside hollow runner, the roof of nozzle has seted up at least two water jet that slope was arranged, each water jet is arranged along a circumference direction interval and is used for spraying the water column that can drive the nozzle along rotatory in first direction, still includes the jet that is used for spraying the water column that can drive the nozzle along rotatory in the second direction, the second direction is opposite with first direction.

Preferably, the injection ports are circumferentially spaced apart on the nozzle top wall along with the respective water jets. All the water flow nozzles are distributed along the circumferential direction, so that the water flow acting force can be balanced better in the circumferential direction, and the rotation stability of the nozzles is improved.

Preferably, an acute angle between an axis of the injection port and a horizontal plane is b3, and b3=55 to 70 °. More preferably, b3=62 to 67 °. By setting the inclination angle, the tableware can be matched with the placing direction of the tableware on the bowl basket, and the tableware can be cleaned aiming at rice bowls and noodle bowls with larger depth.

Preferably, the water spraying port comprises a first nozzle and a second nozzle, and an acute angle b1, b1 > b3 is formed between the axial lead of the first nozzle and/or the axial lead of the second nozzle and the horizontal plane. The water jet also comprises a third nozzle, and an acute angle b2, b3 is more than b2 is formed between the axial lead of the third nozzle and the horizontal plane. By adopting the structure, water columns with different angles and different heights can be sprayed to clean different areas, so that the cleaning effect is improved.

Preferably, the water spraying port comprises a first nozzle and a second nozzle which are arranged at intervals on the circumference, and an acute angle formed between the axis of the first nozzle and/or the axis of the second nozzle and the horizontal plane is 75-85 degrees, and more preferably 78-82 degrees. The first nozzle and the second nozzle can be matched with tableware to be placed in the bowl basket, and the bowl basket is cleaned according to the mug and the dinner plate area respectively, so that the cleaning effect of the local area is improved.

Preferably, the first nozzle and the second nozzle are symmetrically arranged on the circumference, and the inclination directions of the first nozzle and the second nozzle are opposite. The structure can better balance the water flow acting force in the circumferential direction, and improves the rotation stability of the nozzle.

Preferably, the water jet comprises a third nozzle arranged between the first nozzle and the second nozzle, and an acute angle formed between the axis of the third nozzle and the horizontal plane is 25-45 degrees, and more preferably 32-37 degrees. The third nozzle has a larger inclination angle, and can clean the four corners of the bowl basket and the washing cavity, so that the cleaning coverage surface is increased, and the cleaning dead angle is eliminated.

Preferably, the injection ports and the third injection ports are symmetrically arranged on the circumference. The structure can better balance the water flow acting force in the circumferential direction, and improves the rotation stability of the nozzle.

Preferably, the nozzle is disc-shaped, the bottom of the nozzle is provided with a water inlet, the flow channel comprises a water collecting part surrounding the water inlet and a secondary flow channel extending from the edge of the water collecting part to the edge of the nozzle, and the water spraying opening and the jet opening are arranged corresponding to the end parts of the secondary flow channel. The structure can guide the water to be discharged, reduce the energy loss of water flow and improve the lift.

Preferably, the top of the nozzle is provided with a top cover, the top cover is provided with an injection hole corresponding to the water jet, a gap for air to be sucked into the jet water column in a jet state is formed between the injection hole and the water jet, and the injection hole and the gap together form an air-entrapping structure for enabling the injection hole to inject cavitation water column. According to venturi effect, when the water column passes through the water jet and the jet hole, negative pressure is generated at the gap to suck the air around the water column into the water column, so that cavitation water column with bubbles is formed, when the cavitation water column is hit on the surface of the object to be cleaned, the stripping force to pollutants can be increased instantaneously due to the breaking of the bubbles, and the cleaning effect is improved.

Preferably, a surrounding edge is arranged between the top cover edge and the top wall edge of the nozzle, the surrounding edge, the lower surface of the top cover and the upper surface of the nozzle jointly enclose an air collecting cavity which surrounds the water jet and the jet hole, and an air inlet for communicating outside air with the air collecting cavity is formed in the surrounding edge. By adopting the structure, a relatively closed gas collecting cavity is formed, so that food residues, sediment and the like are prevented from invading.

The spray arm is hollow and forms a fluid channel extending along the length direction, a water spray hole communicated with the fluid channel is formed in the spray arm, the spray arm further comprises the spray nozzle, a water outlet is formed in the spray arm and is arranged close to the end portion of the spray arm, and the spray nozzle is rotatably connected to the water outlet.

The utility model provides a cleaning machine, includes the box, the bottom half is provided with the backwater region of indent, and the top in this backwater region is covered with the filter, still includes above-mentioned spray arm, and this spray arm can locate rotationally on the filter its through pump water mechanism with backwater region be linked together.

Compared with the prior art, the utility model has the advantages that: the water jet provided by the utility model is used for driving the nozzle to rotate along a first direction through the water flow reaction force, the jet orifice is used for providing a force opposite to the first direction, and the force counteracts a part of the rotating force of the nozzle along the first direction, so that the influence of the water flow impact in the nozzle on the rotation of the nozzle is reduced, the rotation speed of the nozzle is balanced, and the rotation stability of the nozzle is improved; meanwhile, the water column sprayed by the spraying port is also used for cleaning tableware as the water spraying port, so that the spraying flow is not wasted, and the cleaning effect is improved.

Drawings

FIG. 1 is a schematic view of a nozzle according to an embodiment of the present utility model;

FIG. 2 is a schematic view of the hidden roof of FIG. 1;

FIG. 3 is a schematic view of the structure of the lower part of the nozzle according to the embodiment of the present utility model;

FIG. 4 is a cross-sectional view of FIG. 1;

FIG. 5 is a schematic view illustrating the inclination angles of the first nozzle and the second nozzle according to an embodiment of the present utility model;

FIG. 6 is a schematic view illustrating an inclination angle of a third nozzle according to an embodiment of the present utility model;

FIG. 7 is a schematic view showing the inclination angle of the injection port in the embodiment of the present utility model;

FIG. 8 is a schematic view of a spray arm configuration in accordance with an embodiment of the present utility model;

fig. 9 is a partial cross-sectional view of fig. 8.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in figures 1 to 7 of the drawings,

the nozzle 2 for the cleaning machine in this embodiment is disc-shaped, a flow passage 21 is formed in the interior of the nozzle 2, a water inlet 22 is formed in the bottom wall of the nozzle 2, and a water spray opening 23 is formed in the top wall of the nozzle.

The number of water jets 23 is 3 and is arranged obliquely near the edge of the nozzle 2 on the top wall of the nozzle 2, and each water jet 23 is arranged at intervals along a circumferential direction and is used for jetting water columns capable of driving the nozzle 2 to rotate along the first direction. The nozzle 2 is further provided with an injection opening 24 arranged close to the edge, which injection opening 24 is arranged to inject a water jet capable of driving the nozzle 2 to rotate in a second direction, which is opposite to the first direction. The water jet 23 is used for driving the nozzle 2 to rotate along a first direction through water flow reaction force, the jet orifice 24 is used for providing a force opposite to the first direction, and the force counteracts a part of the rotation force of the nozzle 2 along the first direction, so that the influence of water flow impact in the nozzle 2 on the rotation of the nozzle is reduced, the rotation speed of the nozzle 2 is balanced, and the rotation stability of the nozzle 2 is improved; meanwhile, the water column sprayed by the spraying opening 24 is also used for cleaning tableware like the water spraying opening 23, so that the spraying flow is not wasted, and the cleaning effect is improved.

The injection ports 24 are arranged on the nozzle top wall at intervals in the circumferential direction together with the respective water injection ports 23. All the water flow nozzles are distributed along the circumferential direction, so that the water flow acting force can be balanced better in the circumferential direction, and the rotation stability of the nozzles is improved.

The acute angle between the axis of the injection port 24 and the horizontal plane is b3, b3=55 to 70 °, and preferably b3=62 to 67 °. By setting the inclination angle, the tableware can be matched with the placing direction of the tableware on the bowl basket, and the tableware can be cleaned aiming at rice bowls and noodle bowls with larger depth.

The water jet 23 comprises a first jet 231 and a second jet 232, wherein the axes of the first jet 231 and the second jet 232 form an acute angle b1, and b1 is more than b3 with the horizontal plane. The water jet also comprises a third nozzle 233, and an acute angle b2, b3 > b2 is formed between the axis of the third nozzle 233 and the horizontal plane. By adopting the structure, water columns with different angles and different heights can be sprayed to clean different areas, so that the cleaning effect is improved.

The water jet 23 includes first and second nozzles 231, 232 circumferentially arranged at intervals, and an acute angle b1 formed between the axes of the first and second nozzles 231, 232 and a horizontal plane is 75 to 85 °, preferably 78 to 82 °. The first nozzle 231 and the second nozzle 232 may be matched with the direction of placing the tableware on the bowl basket, and the tableware is cleaned respectively for the mug and the dinner plate area, so as to improve the cleaning effect of the local area.

The first spouts 231 and the second spouts 232 are symmetrically arranged on the circumference, and the inclination directions of the first spouts 231 and the second spouts 232 are opposite. The structure can better balance the water flow acting force in the circumferential direction, and improves the rotation stability of the nozzle.

The water jet 23 includes a third nozzle 233 located between the first nozzle 231 and the second nozzle 232, and an acute angle b2 formed between the axis of the third nozzle 233 and the horizontal plane is 25 to 45 degrees, preferably b2 is 32 to 37 degrees. The third nozzle 233 has a larger inclination angle, and can clean the four corners of the bowl basket and the washing cavity, so as to increase the cleaning coverage and eliminate the cleaning dead angle.

The injection ports 24 are circumferentially symmetrically arranged with the third injection ports 233. The structure can better balance the water flow acting force in the circumferential direction, and improves the rotation stability of the nozzle.

The nozzle 2 has a disk shape, the bottom of the nozzle 2 is provided with a water inlet 22, the flow channel 21 comprises a water collecting part 211 surrounding the water inlet 22 and a secondary flow channel 212 extending from the edge of the water collecting part 211 to the edge of the nozzle, and the water spray opening 23 and the jet opening 24 are arranged corresponding to the end parts of the secondary flow channel 212. The structure can guide the water to be discharged, reduce the energy loss of water flow and improve the lift.

In this embodiment, a top cover 25 is disposed on top of the nozzle 2, and spray holes 251 corresponding to the water spray openings 23 and 24 are formed on the top cover 25, and a gap 26 for sucking air into the jet water column in the jet state is formed between the spray holes 251 and the water spray openings 23, and the spray holes 251 and the gap 26 together form an air-entraining structure for enabling the spray holes 251 to spray cavitation water column. According to venturi effect, when the water column passes through the water jet and the jet hole, negative pressure is generated at the gap to suck the air around the water column into the water column, so that cavitation water column with bubbles is formed, when the cavitation water column is hit on the surface of the object to be cleaned, the stripping force to pollutants can be increased instantaneously due to the breaking of the bubbles, and the cleaning effect is improved.

A surrounding edge 27 is arranged between the edge of the top cover 25 and the edge of the top wall of the nozzle 2, the surrounding edge 27, the lower surface of the top cover 25 and the upper surface of the nozzle 2 jointly enclose an air collection cavity 250 which surrounds the water spray openings 23 and the spray holes 251, and an air inlet 271 for communicating outside air with the air collection cavity 250 is arranged on the surrounding edge 27. With the above structure, the relatively closed gas collecting chamber 250 is formed to prevent invasion of food waste, silt and the like.

As shown in fig. 7 and 8, the spray arm 1 of the present embodiment is hollow and forms a fluid channel 11 extending along the length direction, the spray arm 2 is provided with a water spraying hole 12 communicating with the fluid channel 11, the spray arm further comprises an upper nozzle 2, the top wall of the spray arm 1 is provided with water outlets 13 near two ends respectively, a water inlet 22 of the nozzle 2 is provided with a water inlet sleeve 221 extending downwards and rotatably inserted in the water outlets 13, and the bottom edge of the water inlet sleeve 221 is provided with a clamping foot 222 capable of propping against the inner top wall of the fluid channel 11 to restrain the water inlet sleeve on the spray arm 1. By adopting the structure, the spray nozzle which can rotate along with the spray arm and simultaneously rotate relative to the spray arm is arranged at the end part of the spray arm with weak water pressure of the spray water column, so that the cleaning area is diffused, the cleaning dead angle is eliminated, and the cleaning effect is improved.

The top of the spray arm 1 of the embodiment is also provided with an air-entrapping structure identical to the air-entrapping structure of the nozzle 2, so as to further improve the cleaning effect.

The cleaning machine of this embodiment includes the box (not shown in the figure), and the bottom of the box is provided with the backwater region of indent, and the top in this backwater region is covered with the filter, still includes above-mentioned spray arm 1, and this spray arm 1 can locate on the filter rotationally and be linked together with the backwater region through pump water mechanism.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

Claims

1. A nozzle for a cleaning machine comprising a flow channel (21) hollow in the interior, characterized in that: the top wall of the nozzle is provided with at least two water spray ports (23) which are obliquely arranged, the water spray ports (23) are arranged at intervals along a circumferential direction and used for spraying water columns which can drive the nozzle to rotate along a first direction, and the water jet device also comprises a spray port (24) which is used for spraying water columns which can drive the nozzle to rotate along a second direction, and the second direction is opposite to the first direction.

2. A nozzle for a washer according to claim 1, wherein: the injection ports (24) are arranged on the nozzle top wall at intervals in the circumferential direction together with the respective water injection ports (23).

3. A nozzle for a washer according to claim 2, wherein: an acute angle b3 is formed between the axis of the injection port (24) and the horizontal plane, and b3=55-70 degrees.

4. A nozzle for a washer according to claim 3, wherein: b3 =62 to 67 °.

5. A nozzle for a washer according to claim 3, wherein: the water jet (23) comprises a first jet (231) and a second jet (232), and an acute angle b1, b1 > b3 is formed between the axial lead of the first jet (231) and/or the axial lead of the second jet (232) and the horizontal plane.

6. A nozzle for a washer according to claim 3, wherein: the water jet (23) also comprises a third nozzle (233), and an acute angle b2, b3 > b2 is formed between the axis of the third nozzle (233) and the horizontal plane.

7. The nozzle for a cleaning machine according to any one of claims 1 to 6, characterized in that: the water jet (23) comprises first nozzles (231) and second nozzles (232) which are circumferentially arranged at intervals, and an acute angle formed between the axis of the first nozzles (231) and/or the axis of the second nozzles (232) and the horizontal plane is 75-85 degrees.

8. The nozzle for a washer of claim 7, wherein: an acute angle formed between the axis of the first nozzle (231) and/or the axis of the second nozzle (232) and the horizontal plane is 78-82 degrees.

9. The nozzle for a washer of claim 7, wherein: the first nozzle (231) and the second nozzle (232) are symmetrically arranged on the circumference, and the inclination directions of the first nozzle (231) and the second nozzle (232) are opposite.

10. The nozzle for a washer of claim 7, wherein: the water spraying port (23) comprises a third nozzle (233) positioned between the first nozzle (231) and the second nozzle (232), and an acute angle formed between the axis of the third nozzle (233) and the horizontal plane is 25-45 degrees.

11. The nozzle for a washer of claim 10, wherein: an acute angle formed between the axis of the third nozzle (233) and the horizontal plane is 32-37 degrees.

12. The nozzle for a washer of claim 10, wherein: the jet ports (24) and the third jet ports (233) are symmetrically arranged on the circumference.

13. The nozzle for a cleaning machine according to any one of claims 1 to 6, characterized in that: the nozzle is disc-shaped, the bottom of the nozzle is provided with a water inlet (22), the flow channel (21) comprises a water collecting part (211) surrounding the water inlet (22) and a secondary flow channel (212) extending from the edge of the water collecting part (211) to the edge of the nozzle, and the water inlet (23) and the jet orifice (24) are arranged corresponding to the end parts of the secondary flow channel (212).

14. The nozzle for a cleaning machine according to any one of claims 1 to 6, characterized in that: the top of the nozzle is provided with a top cover (25), the top cover (25) is provided with an injection hole (251) which is arranged corresponding to the water jet (23) and/or the injection port (24), a gap (26) which can be used for sucking air into a jet water column in a jet state is formed between the injection hole (251) and the water jet (23), and the injection hole (251) and the gap (26) jointly form an air-entrapping structure which can enable the injection hole (251) to inject the water column carrying bubbles.

15. The nozzle for a washer of claim 14, wherein: a surrounding edge (27) is arranged between the edge of the top cover (25) and the edge of the top wall of the nozzle, the surrounding edge (27) and the lower surface of the top cover (25) and the upper surface of the nozzle jointly enclose an air collection cavity (250) which surrounds the water spray opening (23) and the spray hole (251), and an air inlet (271) which is used for communicating outside air with the air collection cavity (250) is formed in the surrounding edge (27).

16. Spray arm, inside cavity forms fluid passageway (11) that extend along length direction, open on the spray arm have water jet (23) that are linked together with fluid passageway (11), its characterized in that: the spray nozzle according to any one of claims 1 to 15, wherein the spray arm is provided with a water outlet (13) arranged near the end, and wherein the spray nozzle is rotatably connected to the water outlet.

17. The utility model provides a cleaning machine, includes the box, the bottom half is provided with the return water region of indent, and this return water region's top covers has the filter, its characterized in that: the spray arm of claim 16 rotatably disposed above said filter plate in communication with a recirculation zone via a pumping mechanism.