CN215502868U - A spray arm and cleaning machine for cleaning machine - Google Patents

Abstract

The utility model relates to a spray arm for a cleaning machine and the cleaning machine, wherein the spray arm comprises a main body extending along the length direction, a water inlet is arranged on the bottom wall of the main body, the main body is provided with a water collecting cavity communicated with the water inlet and a flow channel extending to two sides from the water collecting cavity, the top wall of the main body is provided with water spraying holes communicated with the flow channel, at least one water spraying hole is provided with a nozzle capable of rotating along with the spraying of a water column, and the nozzle is provided with a nozzle eccentrically arranged along the water spraying hole. The spray hole of the spray arm is provided with the nozzle which can rotate along with the water column, the nozzle is provided with the nozzle which is eccentrically arranged along the spray hole, the nozzle sprays the conical water column with small lower end and large upper end along with the rotation of the nozzle in the rotation process of the spray arm, the coverage area of the water column is greatly improved compared with that of a straight line type water column, and the conical water column can cover a larger cleaning area along with the rotation of the spray arm, so that the cleaning dead angle can be eliminated, and the cleaning effect is improved.

Description

A spray arm and cleaning machine for cleaning machine

Technical Field

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

Background

The dishwasher using the open water pump in the market at present combines the volute of the pump and the spray arm, i.e. the part of the spray arm is used as the volute of the pump. For example, chinese utility model patent publication No. CN203670269U, an open water pump (application No. CN201320890925.9), discloses a structure including an upper housing, a lower housing, and an impeller, the impeller includes a shaft at the center and a plurality of axially extending blades uniformly distributed along the circumferential direction on the circumferential surface of the shaft, the blades are axially divided into an upper section and a lower section connected to each other, an upper housing cavity for housing the upper section of the blades is formed in the upper housing, a lower housing cavity for housing the lower section of the blades is formed in the lower housing, a water inlet of the water pump is located below the lower housing, and a water outlet is located on the upper side of the upper housing.

For the spray arm with the structure, the water inlet is positioned on the bottom wall of the spray arm, water flows out 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 top wall of the spray arm is provided with a water spraying hole for spraying water columns upwards. In the existing dish washing machine, after the structure of the dish rack is fixed, the position of dishes on the dish rack is unchanged, and the water column sprayed by the spray arm is approximately linear, so that the range of the sprayed water column is limited, the surfaces of all tableware cannot be considered, and the cleaning effect is influenced due to the existence of dead angles.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the utility model is to provide a spray arm for a cleaning machine, which can eliminate the cleaning dead angle and improve the cleaning effect, aiming at the current situation of the prior art.

The second technical problem to be solved by the present invention is to provide a cleaning machine using the spray arm in view of the current state of the prior art.

The technical scheme adopted by the utility model for solving at least one technical problem is as follows:

a spray arm for a cleaning machine comprises a main body extending along the length direction, wherein a water inlet is formed in the bottom wall of the main body, the main body is provided with a water collecting cavity communicated with the water inlet and a flow channel extending from the water collecting cavity to two sides, a water spray hole communicated with the flow channel is formed in the top wall of the main body, at least one water spray hole is provided with a nozzle capable of rotating along with the spraying of a water column, and the nozzle is provided with a nozzle eccentrically arranged along the water spray hole.

Preferably, the nozzle opening is formed in the top wall and/or the side wall of the nozzle and is used for spraying the jet water column with the conical surface structure along with the rotation of the nozzle. The nozzle can rotate along with the nozzle to spray the conical water column, and compared with the linear water column sprayed in the prior art, the conical water column has wider coverage, is favorable for eliminating cleaning dead angles and covers all areas for placing tableware.

Preferably, the nozzle has a ^ shaped cross-section, the spout extending from the top edge of the ^ shaped structure onto the vertical side wall. The structure can realize the injection of the conical water column, enlarge the coverage area of a single conical water column and further improve the coverage area of the water column.

Preferably, the inner side wall of the lower portion of the nozzle is gradually inclined downwards from the outer wall of the nozzle to the inner wall of the nozzle along the flowing direction of water flow to form a flow guide surface. The structure is beneficial to reducing energy loss and improving the jet force of the water column.

Preferably, the spout is inclined from bottom to top in the direction of rotation of the nozzle. This structure is advantageous for further reducing energy loss.

For the convenience of assembly, the bottom of the nozzle is provided with a lower port, a retainer ring extending outwards is arranged at the outer edge of the lower port, the main body is provided with a retainer ring arranged along the upper edge of the water jet hole, the lower end of the nozzle is inserted into the water jet hole, and the retainer ring is abutted against the retainer ring. Preferably, the outer wall surface of the retainer ring forms an assembly inclined surface which is gradually inclined outwards from top to bottom. And the inner wall of the water spray hole is also provided with a limiting ring which is positioned at the lower side of the clamping ring and used for preventing the nozzle from sliding downwards.

The cleaning machine with the spray arm comprises a box body, wherein the spray arm can be rotatably arranged in the box body.

Compared with the prior art, the utility model has the advantages that: the spray hole of the spray arm is provided with the nozzle which can rotate along with the water column, the nozzle is provided with the nozzle which is eccentrically arranged along the spray hole, the nozzle sprays the conical water column with small lower end and large upper end along with the rotation of the nozzle in the rotation process of the spray arm, the coverage area of the water column is greatly improved compared with that of a straight line type water column, and the conical water column can cover a larger cleaning area along with the rotation of the spray arm, so that the cleaning dead angle can be eliminated, and the cleaning effect is improved.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view from another angle of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a schematic structural view of a nozzle in an embodiment of the present invention;

FIG. 6 is a cross-sectional view of FIG. 5;

fig. 7 is a schematic view of a spray structure according to an embodiment of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

The spray arm of the embodiment is used in a cleaning machine and can be rotatably positioned below a dish rack.

As shown in fig. 1 to 7, the spray arm of the present embodiment includes a main body 1 extending along a length direction, a water inlet 11 is formed on a bottom wall of the main body 1, the main body 1 has a water collecting cavity 12 communicating with the water inlet 11 and a flow channel 13 extending from the water collecting cavity 12 to two sides, a water spraying hole 14 communicating with the flow channel 13 is formed on a top wall of the main body 1, at least one of the water spraying holes 14 is provided with a nozzle 2 capable of rotating with a water column, and the nozzle 2 is provided with a nozzle 21 eccentrically disposed along the water spraying hole 14.

Specifically, the nozzle 2 has a n-shaped cross section, and the nozzle 21 is opened on the top wall and/or the side wall of the nozzle 2 for jetting out the jet water column having a conical surface structure as the nozzle 2 rotates. The nozzle 21 of the embodiment can rotate along with the nozzle 2 to spray out the conical water column a, and compared with the linear water column sprayed in the prior art, the coverage area of the conical water column is wider, which is beneficial to eliminating the cleaning dead angle and covering all the areas for placing tableware.

Said spout 21 extends from the top edge of the ≡ shaped structure to the vertical side walls. The structure can realize the injection of the conical water column, enlarge the coverage area of a single conical water column and further improve the coverage area of the water column.

The inside wall of spout 21 lower part is along rivers flow direction from nozzle 2 outer wall to nozzle 2 inner wall department slope down gradually and is formed water conservancy diversion face 211, and this structure is favorable to reducing energy loss, improves the jet power of water column. The spout 21 is inclined from bottom to top in the direction of rotation of the nozzle 2, which configuration is advantageous for further reducing energy loss.

For the convenience of assembly, the bottom of the nozzle 2 has a lower port 22, the outer edge of the lower port 22 is provided with a retaining ring 23 extending outwards, the main body 1 is provided with a retainer ring 141 arranged along the upper edge of the spout hole 14, the lower end of the nozzle 2 is inserted into the spout hole 14, and the retaining ring 23 is abutted against the retainer ring 141. The outer wall surface of the retainer ring 23 forms a fitting slope 231 that gradually inclines outward from top to bottom. The inner wall of the water spraying hole 14 is also provided with a limiting ring 142 which is positioned at the lower side of the clamping ring 141 and is used for preventing the nozzle 2 from sliding downwards.

The cleaning machine with the spray arm comprises a box body, and the spray arm can be rotatably arranged in the box body. The number of the nozzles 2 on the spray arm can be selectively set according to the actual volume, structure and the like of the dish rack.

In the rotation process of the spray arm, the nozzle 21 rotates along with the nozzle 2 to jet out a conical water column a with a small lower end and a large upper end, the coverage area of the water column per se is greatly improved compared with that of a straight water column, and along with the rotation of the spray arm per se, the conical water column a can cover a larger cleaning area b, so that the cleaning dead angle can be eliminated, and the cleaning effect is improved.

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 utility model, 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 (9)

1. The utility model provides a spray arm for cleaning machine, includes main part (1) that extends along length direction, and it has water inlet (11) to open on this main part (1) diapire, main part (1) have the chamber of catchmenting (12) that is linked together with water inlet (11) and from this chamber of catchmenting (12) runner (13) that extend to both sides, it has hole for water spraying (14) that are linked together with runner (13) to open on main part (1) roof, its characterized in that: at least one water spraying hole (14) is provided with a nozzle (2) which can rotate along with the water column, and the nozzle (2) is provided with a nozzle (21) which is eccentrically arranged along the water spraying hole (14).

2. The spray arm for a cleaning machine of claim 1, wherein: the nozzle (21) is arranged on the top wall and/or the side wall of the nozzle (2) and is used for jetting a jet water column with a conical surface structure along with the rotation of the nozzle (2).

3. The spray arm for a cleaning machine of claim 1, wherein: the cross-section of the nozzle (2) is of inverted-U-shaped configuration, the spout (21) extending from the top edge of the inverted-U-shaped configuration onto the vertical side wall.

4. The spray arm for a cleaning machine of claim 3, wherein: the inner side wall of the lower part of the nozzle (21) is gradually inclined downwards from the outer wall of the nozzle (2) to the inner wall of the nozzle (2) along the water flow direction to form a flow guide surface (211).

5. The spray arm for a cleaning machine of claim 3, wherein: the nozzle (21) inclines along the rotating direction of the nozzle (2) from bottom to top.

6. The spray arm for a cleaning machine of any one of claims 1 to 5, wherein: the bottom of the nozzle (2) is provided with a lower port (22), the outer edge of the lower port (22) is provided with a retaining ring (23) which extends outwards, the main body (1) is provided with a retaining ring (141) which is arranged along the upper edge of the water spraying hole (14), the lower end of the nozzle (2) is inserted into the water spraying hole (14), and the retaining ring (23) is abutted against the retaining ring (141).

7. The spray arm for a cleaning machine of claim 6, wherein: the outer wall surface of the retainer ring (23) forms an assembly inclined surface (231) which is gradually inclined outwards from top to bottom.

8. The spray arm for a cleaning machine of claim 6, wherein: the inner wall of the water spraying hole (14) is also provided with a limiting ring (142) which is positioned at the lower side of the clamping ring (141) and used for preventing the nozzle (2) from sliding downwards.

9. A cleaning machine with the spray arm of any one of claims 1-8 applied thereto comprises a box body, and is characterized in that: the spray arm can be rotatably arranged in the box body.

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