CN116211205A

CN116211205A - Cleaning machine

Info

Publication number: CN116211205A
Application number: CN202211611048.7A
Authority: CN
Inventors: 郑峰; 魏本柱
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-06-06

Abstract

The invention relates to a cleaning machine, which comprises a box body and a spray arm, wherein the spray arm is rotatably arranged in the box body, the spray arm is provided with a hollow runner, the spray arm is also provided with a water outlet communicated with the runner, a nozzle capable of rotating relative to the spray arm is connected at the water outlet, and the upper surface of the spray arm is provided with a concave mounting groove which is used for mounting the nozzle and has a semi-surrounding structure. The spray arm end part is provided with the spray nozzle which can rotate along with the spray arm and simultaneously rotate relative to the spray arm, so that the cleaning dead angle is eliminated; cavitation water columns are formed through the air entrainment structure, bubbles entrained in water flow are broken at the moment of contacting pollutants, so that the stripping force of the pollutants on the surface of the object to be cleaned can be improved, and the cleaning effect is further improved; the nozzle is arranged outside the top plate, so that food residues, sediment and the like are prevented from being mixed in a gap between the top plate and the nozzle, and the rotation stability of the nozzle is improved.

Description

Cleaning machine

Technical Field

The invention relates to the technical field of dish washing machines, in particular to a washing machine for washing 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. For example, chinese patent publication No. CN204813755U (application No. CN 201520531714.5) and Chinese patent publication No. CN209932651U (application No. CN201920258610. X) disclose corresponding spray arm structures.

For the spray arm with the structure, the water inlet is arranged on one side wall of the spray arm, water is discharged from the water inlet to two sides, the spray arm is driven to rotate by viscous force of water dispersed in the flow channel, and the other side wall of the spray arm is provided with a first water spraying hole for spraying water columns. Because in current dish washer, bowl and dish are fixed the back in bowl frame structure, and the bowl dish is unchangeable on the bowl frame, and the water column that spray arm sprayed is approximately straight line (strip) form, this just leads to spraying the limited scope of water column, can not compromise the surface of all tableware, has the washing dead angle, influences cleaning effect. Meanwhile, a dish washer with a rectangular washing cavity is easy to generate a washing dead angle.

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 with the structure is beneficial to reducing the cleaning dead angle, but if the nozzle is enclosed in the sprayer during installation, sediment, food disability and the like are easily accumulated in gaps, so that the problem of nozzle rotation clamping stagnation is also easily caused.

Disclosure of Invention

Aiming at the current state of the art, the invention provides the cleaning machine which can effectively eliminate the dead angle of cleaning and timely wash away the sediment and food residues in the assembly gap so as to enable the nozzle to rotate smoothly.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a cleaning machine, includes box and spray arm, the spray arm can locate in the box rotationally, the spray arm is provided with hollow runner, the spray arm has still been seted up and has been linked together with the runner the delivery port, this delivery port department is connected with can be for spray arm pivoted nozzle, the upper surface of spray arm is provided with the mounting groove that is used for installing the nozzle and is half surrounding structure of indent.

Preferably, part of the side wall of the nozzle at the opening of the semi-surrounding structure of the mounting groove is exposed, and the length of the side wall of the nozzle part exposed at the opening of the semi-surrounding structure is 20-80% of the circumferential length of the nozzle, and more preferably 30-50%.

Preferably, the mounting groove is located at an end of the spray arm, and the opening portion of the mounting groove semi-surrounding structure is arranged corresponding to an end edge of the spray arm.

The spray arm is provided with a water spray hole communicated with the flow channel, and the top of the spray arm is provided with an air collecting cavity which can surround the water spray hole and supply air for the water spray hole so as to form a spray water column with bubbles.

Preferably, the spray arm has opposite length and width directions, the nozzle is arranged at the end part of the spray arm, and the gas collection cavity extends from the central part of the spray arm to the end part and is positioned inside the mounting groove and the nozzle.

Preferably, the nozzle is disc-shaped, the end part of the spray arm is shaped into an arc-shaped end wall corresponding to the outer edge of the nozzle above the spray arm, the end part of the top plate is inwards recessed to form an arc-shaped notch which surrounds the periphery of the nozzle and is matched with the nozzle, and the arc-shaped notch and the top wall of the spray arm outside the arc-shaped notch jointly surround to form the mounting groove.

Preferably, the side open portion of the semi-surrounding structure of the mounting groove constitutes an air inlet of the air collecting chamber.

Preferably, top plates arranged at intervals are arranged at the tops of the spray arms, the air collecting cavity is enclosed between the top plates and the top wall of the spray arms, jet holes corresponding to the water spray holes are formed in the top plates, and a first gap for air to be sucked into jet water columns in a jet state is formed between the jet holes and the water spray holes. According to venturi effect, when the water column passes through the water spraying hole and the jet hole, negative pressure is generated at the first gap so as to suck the surrounding air into the water column, a cavitation water column with bubbles is formed, when the cavitation water column is hit on the surface of an object to be cleaned, the stripping force to pollutants can be increased at the moment of bubble breaking, and the cleaning effect is improved.

Preferably, the nozzle is disc-shaped, the end of the spray arm is shaped into an arc-shaped end wall opposite to the outer edge of the nozzle above the spray arm, and the end of the top plate is inwards recessed to form an arc-shaped notch which surrounds the periphery of the nozzle and is matched with the nozzle. The inner wall of the arc-shaped notch and the arc-shaped end wall of the spray arm are tangentially connected to form a mounting groove for semi-surrounding and mounting the nozzle, and the part of the arc-shaped end wall corresponding to the mounting groove forms an air inlet of the air collecting cavity. By adopting the mode, after the nozzle is arranged on the spray arm, the spray arm has better integrity and mainly has the following functions: 1. the nozzle rotation is guided in the circumferential direction, so that the stability of the nozzle rotation is improved; 2. the semi-enclosed structure can wash away food residues and sediment by matching with the rotation of the nozzle through the opening part of the mounting groove, so that the problem of pollutant accumulation is avoided, and the assembly gap between the edge of the nozzle and the edge of the top plate can be reduced, thereby further improving the rotation stability of the nozzle; 3. the side wall of the nozzle can also block the air inlet area of the air collecting cavity, so that washing water, pollutants and the like are prevented from invading into the air collecting cavity.

Preferably, the top plate is supported on the top wall of the spray arm through a supporting rib, the supporting rib is arc-shaped and extends below the top plate along the edge of the arc-shaped notch, and a gap for gas to enter the gas collecting cavity from the outside is reserved between at least one end of the supporting rib and the inner wall of the gas collecting cavity. The structure provides support for the top plate on one hand, and on the other hand can further restrict the air inlet area to prevent wash water, pollutants and the like from invading into the air collecting cavity.

Preferably, the top edge of the circular arc-shaped end wall is formed with a drainage slope gradually inclining outwards along the radial direction from top to bottom. This structure is convenient for drain ponding of nozzle department fast.

Preferably, the top of the nozzle is provided with a spray hole, the top of the nozzle is provided with a top cover, the top cover is provided with a spray hole corresponding to the spray hole, a second gap for air to be sucked into a jet water column in a jet state is formed between the spray hole and the spray hole, and the spray hole and the second gap together form a second air-entrapping structure for enabling the spray hole to spray cavitation water column. Similarly, according to the venturi effect, when the water column passes through the spray hole and the spray hole, negative pressure is generated at the second gap to suck the surrounding air 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 at the moment of bubble breaking, and the cleaning effect is improved.

Preferably, the upper surface of the top cover gradually slopes downwards from the center to the edge to form a diversion surface. The structure can keep the upper surface of the top cover in a water-free or water-less state so as to avoid water stains from being sucked into the second gap to influence the air-entrapping effect of the second air-entrapping structure.

Preferably, the bottom of the nozzle is provided with a water inlet and a water inlet sleeve extending downwards around the water inlet, and the water inlet sleeve is rotationally connected with the water outlet through a buckle. The bottom edge of the water inlet sleeve is provided with a clamping foot which can penetrate through the water outlet and prop against the top wall of the runner so as to rotationally restrain the nozzle on the spray arm. This configuration facilitates the rotational attachment of the nozzle to the spray arm.

Further preferably, the outer side wall of the clamping leg is shaped into a flow guiding surface which gradually inclines outwards along the radial direction from bottom to top. This configuration reduces the energy loss of fluid entering the nozzle within the flow path.

In the assembled state, the upper surface of the nozzle is basically flush with the top surface of the spray arm. Alternatively, in the assembled state, the thickness of the nozzle is 0.5 to 1.5 times the depth of the semi-enclosed mounting groove. So that the spray arm has stable structure, anti-blocking effect and beautiful appearance.

Compared with the prior art, the invention has the advantages that: the spray nozzle capable of rotating along with the spray arm and rotating relative to the spray arm is arranged at the end part of the spray arm, so that the cleaning dead angle is eliminated; cavitation water columns are formed through the air entrainment structure, bubbles entrained in water flow are broken at the moment of contacting pollutants, so that the stripping force of the pollutants on the surface of the object to be cleaned can be improved, and the cleaning effect is further improved; the nozzle is arranged outside the top plate, so that food residues, sediment and the like are prevented from being mixed in a gap between the top plate and the nozzle, and the rotation stability of the nozzle is improved.

Drawings

FIG. 1 is a schematic view of a cleaning machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of a spray arm according to an embodiment of the present invention;

FIG. 3 is a schematic view of the bottom structure of FIG. 2;

FIG. 4 is an exploded view of a spray arm and nozzle according to an embodiment of the present invention;

FIG. 5 is an exploded view of a spray arm in an embodiment of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is a cross-sectional view of a spray arm according to an embodiment of the present invention;

FIG. 8 is a schematic view of the bottom structure of a nozzle according to an embodiment of the present 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 8, the cleaning machine of the embodiment includes a box 01 and a spray arm 1, a concave backwater area 011 is provided at the bottom of the box 01, a filter plate 012 is covered at the top of the backwater area 011, a water pump communicated with the backwater area 011 is provided in the backwater area 011, a water outlet of the water pump is arranged upward, and the spray arm 1 can be rotatably provided on the filter plate 012 and is communicated with the water outlet of the water pump.

The spray arm 1 can be rotationally arranged in the box body and is close to the bottom of the box body 01, a runner 11 extending along the length direction is formed in the hollow mode in the spray arm 1, a water inlet 12 communicated with the runner 11 is formed in the bottom wall of the spray arm 1, a plurality of water spraying holes 13 communicated with the runner 11 are formed in the top wall of the spray arm 1, and a water pumping mechanism for pumping water at the bottom of the box body into the runner 11 through the water inlet 12 is arranged at the bottom of the box body 01, namely the water pump.

The spray arm 1 is formed by combining an upper shell and a lower shell, a top plate 3 is covered on the spray arm 1, an air collecting cavity 30 is enclosed between the top plate 3 and the top wall of the spray arm 1, the air collecting cavity 30 is communicated with the outside air, a jet hole 31 which is arranged corresponding to the water spraying hole 13 is arranged on the top plate 3, a first gap 100 which can be used for sucking air into a jet water column in a jet state is formed between the jet hole 31 and the water spraying hole 13, and the air collecting cavity 30, the jet hole 31 and the first gap 100 jointly form a first air filling structure. According to the venturi effect, when the water column passes through the water spraying hole and the jet hole, negative pressure is generated at the first gap 100 to suck the surrounding air into the water column, so that a 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 at the moment of bubble breaking, and the cleaning effect is improved.

In this embodiment, the top wall of the spray arm 1 is provided with a water outlet 14 near the end, the nozzle 2 is connected to this water outlet 14, and the nozzle 2 is located outside the top plate 3. The nozzle 2 is arranged outside the top plate 3, so that food residues, sediment and the like are prevented from being mixed in a gap between the nozzle 2 and the top plate to influence the rotation of the nozzle.

Specifically, the nozzle 2 has a disk shape, the end of the shower arm 1 is formed as an arc-shaped end wall 18 opposite to the outer edge of the nozzle 2 above the end, and the end of the top plate 3 is recessed inward to form an arc-shaped notch 32 surrounding the outer periphery of the nozzle 2 and matching the end. The inner wall of the arc-shaped notch 32 and the arc-shaped end wall 18 of the spray arm 1 are tangentially connected together to form a mounting groove 20 for semi-surrounding the spray nozzle 2, and the part of the arc-shaped end wall 18 corresponding to the mounting groove 20 forms an air inlet of the air collecting cavity 30. After the spray nozzle 2 is arranged on the spray arm 1 in the mode, the spray arm 1 has better integrity and mainly has the following effects: 1. the rotation of the nozzle 2 is guided in the circumferential direction, so that the rotation stability of the nozzle 2 is improved; 2. the semi-surrounding structure can wash away food residues and sediment by matching with the rotation of the nozzle 2 through the opening part of the mounting groove 20, so that the problem of pollutant accumulation is avoided, and the assembly gap between the edge of the nozzle 2 and the edge of the top plate 3 can be reduced, thereby further improving the rotation stability of the nozzle 2; 3. the side wall of the nozzle 2 can also block the air inlet area of the air collecting cavity 30 to prevent washing water, pollutants and the like from invading into the air collecting cavity 30.

The top plate 3 is supported on the top wall of the spray arm 1 through the supporting ribs 33, the supporting ribs 33 are arc-shaped and extend along the edge of the arc-shaped notch 32 below the top plate 3, and gaps 331 for gas to enter the gas collecting cavity 30 from the outside are reserved between the two ends of the supporting ribs 33 and the inner wall of the corresponding gas collecting cavity 30. The structure provides support for the top plate 3 on the one hand, and can further restrict the air inlet area on the other hand, so as to prevent wash water, pollutants and the like from invading into the air collecting cavity.

The top edge of the arcuate end wall 18 is formed with a drainage ramp 181 that tapers radially outwardly from top to bottom. This structure facilitates the rapid drainage of the accumulated water at the nozzle 2.

The inside of the nozzle 2 is hollow to form a disc-shaped or cross-shaped cavity-shaped flow passage, the top of the nozzle 2 is provided with at least two spray holes 21, and the spray directions of the nozzle 2 in the circumferential direction are opposite, so that the nozzle 2 can be driven to rotate by means of water flow recoil force. The top of the nozzle 2 is provided with a top cover 22, the top cover 22 is provided with an injection hole 221 which is arranged corresponding to the injection hole 21, a second gap 200 which can be used for sucking air into the jet water column in the jet state is formed between the injection hole 221 and the injection hole 21, and the injection hole 221 and the second gap 200 jointly form a second air-entrapping structure. Similarly, according to the venturi effect, when the water column passes through the spray hole and the spray hole, negative pressure is generated at the second gap to suck the surrounding air 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 at the moment of bubble breaking, and the cleaning effect is improved.

The upper surface of the top cover 22 is gradually inclined downward from the center toward the edge to form a guide surface 222. The above structure can keep the upper surface of the top cover in a water-free or water-less state, so as to avoid water stain being sucked into the second gap 200 to affect the air-entraining effect of the second air-entraining structure.

The bottom of the nozzle 2 is provided with a water inlet 23 and a water inlet sleeve 24 extending downwards around the water inlet 23, the bottom edge of the water inlet sleeve 24 is provided with a clamping foot 25 which can penetrate through the water outlet 14 to prop against the top wall of the runner 11 so as to rotationally restrain the nozzle 2 on the spray arm 1, and the structure is convenient for rotationally connecting the nozzle on the spray arm. The outer side wall of the catch 25 is shaped as a flow guiding slope 251 gradually sloping outwards in the radial direction from bottom to top. This configuration reduces the energy loss of fluid entering the nozzle 2 within the flow passage 11.

The end part of the spray arm 1 of the embodiment is provided with the spray nozzle 2 which can rotate along with the spray arm 1 and simultaneously rotate relative to the spray arm 1, thereby being beneficial to eliminating the cleaning dead angle; cavitation water columns are formed through the air entrainment structure, bubbles entrained in water flow are broken at the moment of contacting pollutants, so that the stripping force of the pollutants on the surface of the object to be cleaned can be improved, and the cleaning effect is further improved; the nozzle 2 is arranged outside the top plate 3, so that food residues, silt and the like are prevented from being mixed in a gap between the top plate 3 and the nozzle, and the rotation stability of the nozzle 2 is improved.

In the description and claims of the present invention, 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 invention, 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 invention 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. The utility model provides a cleaning machine, includes box (01) and spray arm (1), spray arm (1) rotationally locate in box (01), spray arm (1) are provided with hollow runner (11), its characterized in that: the spray arm (1) is also provided with a water outlet (14) communicated with the runner (11), the water outlet (14) is connected with a nozzle (2) which can rotate relative to the spray arm (1), and the upper surface of the spray arm (1) is provided with a concave mounting groove (20) which is used for mounting the nozzle (2) and is of a semi-surrounding structure.

2. The cleaning machine of claim 1, wherein: the side wall of the nozzle (2) is exposed at the opening of the semi-surrounding structure of the mounting groove (20), and the length of the side wall of the nozzle (2) exposed at the opening of the semi-surrounding structure is 20-80% of the circumferential length of the nozzle (2).

3. The cleaning machine of claim 2, wherein: the length of the side wall of the part of the nozzle (2) exposed at the opening of the semi-surrounding structure is 30-50% of the circumferential length of the nozzle (2).

4. The cleaning machine of claim 1, wherein: the mounting groove (20) is positioned at the end part of the spray arm (1), and the opening part of the semi-surrounding structure of the mounting groove is arranged corresponding to the end edge of the spray arm.

5. The cleaning machine of claim 4, wherein: the spray arm (1) is provided with a water spray hole (13) communicated with the flow channel (11), and the top of the spray arm (1) is provided with an air collection cavity (30) which can surround the water spray hole (13) and supply air to the water spray hole (13) so as to form a spray water column with bubbles.

6. The cleaning machine of claim 5, wherein: the spray arm (1) has opposite length and width directions, the nozzle (2) is arranged at the end part of the spray arm (1), and the air collection cavity (30) extends from the central part of the spray arm (1) to the end part and is positioned at the inner sides of the mounting groove (20) and the nozzle (2).

7. The cleaning machine of claim 6, wherein: the spray nozzle (2) is disc-shaped, the end part of the spray arm (1) is shaped into an arc-shaped end wall (18) corresponding to the outer edge of the spray nozzle (2) above the spray arm, the end part of the top plate (3) is inwards recessed to form an arc-shaped notch (32) which surrounds the periphery of the spray nozzle (2) and is matched with the spray nozzle, and the arc-shaped notch (32) and the top wall of the spray arm on the outer side of the spray arm jointly encircle to form the mounting groove (20).

8. The cleaning machine of claim 7, wherein: the side open part of the semi-surrounding structure of the mounting groove (20) forms an air inlet of the air collecting cavity (30).

9. The cleaning machine of claim 7, wherein: the top of the spray arm (1) is provided with a top plate (3) at intervals, the top wall of the spray arm (1) is surrounded with an air collecting cavity (30), the top plate (3) is provided with a jet hole (31) which is arranged corresponding to the water spraying hole (13), and a first gap (100) which can be used for air to be sucked into a jet water column under a jet state is formed between the jet hole (31) and the water spraying hole (13).

10. The cleaning machine of claim 9, wherein: and a supporting rib (33) for supporting the top plate (3) on the spray arm is arranged below the top plate.

11. The cleaning machine of claim 10, wherein: at least part of the supporting ribs (33) are arc-shaped and extend along the edge of the arc-shaped notch (32) below the top plate (3), and gaps (331) for allowing gas to enter the gas collection cavity (30) from the outside are reserved between at least one end of the supporting ribs (33) and the inner wall of the gas collection cavity (30).

12. The cleaning machine of claim 7, wherein: the top edge of the circular arc-shaped end wall (18) is provided with a drainage inclined surface (181) which gradually inclines outwards along the radial direction from top to bottom.

13. The cleaning machine of any one of claims 1-12, wherein: the bottom of the nozzle (2) is provided with a water inlet (23) and a water inlet sleeve (24) which extends downwards around the water inlet (23), and the water inlet sleeve (24) is rotationally connected with the water outlet through a buckle.

14. The cleaning machine of claim 13, wherein: the bottom edge of the nozzle (2) is provided with a clamping foot (25) which can penetrate through the water outlet (14) and prop against the top wall of the runner (11) so as to rotationally restrain the nozzle (2) on the spray arm (1).

15. The cleaning machine of claim 14, wherein: the outer side wall of the clamping foot (25) is shaped into a diversion inclined plane (251) which gradually inclines outwards along the radial direction from bottom to top.

16. The cleaning machine of any one of claims 1-12, wherein: in the assembled state, the upper surface of the nozzle (2) is basically flush with the top surface of the spray arm (3).

17. The cleaning machine of any one of claims 1-12, wherein: in the assembled state, the thickness of the nozzle (2) is 0.5-1.5 times of the depth of the semi-enclosed mounting groove (20).