CN218247156U

CN218247156U - A nozzle and spray arm, cleaning machine for cleaning machine

Info

Publication number: CN218247156U
Application number: CN202221693167.7U
Authority: CN
Inventors: 魏本柱; 刁硕; 姚永磊; 潘嘉威; 韩健健
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-10
Anticipated expiration: 2032-06-30

Abstract

The utility model relates to a nozzle and spray arm, cleaning machine for cleaning machine, nozzle are used for rotating with the hole for water spraying of water spray part and are connected, including the body that has a collection liquid chamber, this body bottom is opened and is formed water inlet, top and is sealed, and open at the body top has along the spout of hole for water spraying eccentric arrangement, is provided with in the body downward extension under the water inlet, is used for rotating spacing reference column with the water spray part, and the reference column is followed the axial extension of body. The utility model arranges a positioning column extending to the lower part of the body in the nozzle, and the positioning column can limit the rotation center of the nozzle in the axial direction of the nozzle, thereby avoiding the shaking and jamming of the nozzle caused by the eccentric force of the jet water column of the deflection nozzle, improving the rotation stability of the nozzle and further improving the uniformity of the cleaning degree; meanwhile, the positioning column can also axially guide water flow entering the nozzle from bottom to top, so that water flow disorder and energy loss are reduced, a larger jet lift and pressure are kept, and the cleaning effect is improved.

Description

A nozzle and spray arm, cleaning machine for cleaning machine

Technical Field

The utility model relates to a dish washer technical field specifically indicates a nozzle and spray arm, cleaning machine for cleaning machine.

Background

A dishwasher is generally provided with a spray arm for spraying water to wash dishes or vegetables. For example, chinese patent publication No. CN204813755U, entitled "spray arm seat of dishwasher", spray arm device of dishwasher and dishwasher "(application No. CN 201520531714.5), and chinese patent publication No. CN209932651U, entitled" spray arm of cleaning machine "(application No. CN201920258610. X) disclose corresponding spray arm structures.

For the spray arm with the structure, the water inlet is positioned on one side wall of the spray arm, and double water outlets are formed 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 the water spraying hole for spraying water columns. In the existing dish washing machine, after the structure of the dish rack is fixed, the positions of dishes on the dish rack are unchanged, and the water columns sprayed by the spraying arms are approximately linear (strip-shaped), so that the range of the sprayed water columns is limited, the surfaces of all tableware cannot be considered, dead angles exist in washing, and the washing effect is influenced. Meanwhile, for the dish washer with a rectangular washing cavity, a washing dead angle is easy to generate.

In order to solve the above problems, the applicant's prior patent, ZL 202121476877, discloses a structure comprising a main body extending along a length direction, a water inlet opening formed on a bottom wall of the main body, a water collecting chamber communicating with the water inlet opening and a flow channel extending from the water collecting chamber to both sides, a water spraying hole communicating with the flow channel formed on a top wall of the main body, a nozzle capable of rotating with the water column spraying out and arranged on at least one water spraying hole, and a nozzle eccentrically arranged along the water spraying hole formed on the nozzle. In the rotation process of the spray arm, the eccentrically arranged nozzle jets a conical water column with a small lower end and a large upper end along with the rotation of the nozzle, the coverage area of the water column per se is greatly improved compared with a linear water column, and along with the rotation of the spray arm per se, the conical water column can cover a larger cleaning area, so that the cleaning dead angle can be eliminated, and the cleaning effect is improved.

However, the nozzle is directly constrained to the spout, and when the water column is jetted, the power for rotating the nozzle is mainly from the driving force of the water column jetted from the deflection jet, so that the nozzle and the spout are easily stuck, the rotational stability of the nozzle is affected, and the cleaning degree may be uneven at each position of the cleaning surface.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to prior art's current situation, provides one kind and can improve the rotational stability, avoid rotating thereby that the in-process takes place the jamming and improve the nozzle that is used for the cleaning machine of cleanliness factor homogeneity.

The utility model discloses the second technical problem that will solve is the current situation to prior art, provides an use spray arm that has above-mentioned nozzle.

The utility model discloses the second technical problem that will solve is to prior art's current situation, provides an use the cleaning machine that has above-mentioned spray arm.

The utility model provides a technical scheme that at least one above-mentioned technical problem adopted does:

a nozzle for a cleaning machine, which is used for being rotationally connected with a water spraying hole of a water spraying part, comprises a body with a liquid collecting cavity, wherein the bottom of the body is opened to form a water inlet, the top of the body is closed, a nozzle which is eccentrically arranged along the water spraying hole is arranged on the top of the body, and a positioning column which extends downwards below the water inlet and is used for limiting the rotation of the body and the water spraying part is arranged in the body and extends along the axial direction of the body.

Preferably, the upper end of the positioning column is connected with the inner top wall of the body, and the lower end of the positioning column extends below the water inlet. The structure can avoid the interference between the nozzle and the water spraying component after positioning the nozzle.

Preferably, the cross section of the nozzle is in an inverted U-shaped structure, the spout is opened at the closed end of the U-shaped structure and is arranged close to one side of the closed end, and the upper end of the positioning column is connected to the inner bottom wall of the closed end of the U-shaped structure and is arranged close to the spout. By adopting the structure, water passing through the water spraying holes can be guided and can rotate along with the nozzle to form a conical water column, and compared with a linear water column sprayed in the prior art, the conical water column has wider coverage, is beneficial to eliminating a cleaning dead angle and covering all areas for placing tableware; the reference column is close to the spout and arranges, can also carry out radial guide to rivers, avoids rivers disorder, reduces energy loss, keeps higher injection lift and water pressure, improves the cleaning performance.

Preferably, an included angle of 10-30 degrees is formed between the axis of the nozzle and the axis of the positioning column. Further preferably, an included angle of 18-22 degrees is formed between the axis of the nozzle and the axis of the positioning column. Through the angle setting, the cover surface of the formed conical water column is controlled, and the washing effect of the area needing to be washed is improved in a more targeted manner.

Preferably, the positioning column is located at the central part of the liquid collecting cavity, and one side edge of the upper end of the positioning column is connected with the edge of the spout, which is relatively high. Further preferably, the inner top wall of the body is provided with a first flow guide surface arranged around the periphery of the spout, and the first flow guide surface forms an arc-shaped structure gradually extending outwards from the edge of the spout. One part of the upper end of the positioning column is connected with the first flow guide surface, and the other part of the upper end of the positioning column is connected with the top wall in the body outside the first flow guide surface. And the outer edge of the part of the upper end of the positioning column, which is connected with the first flow guide surface, correspondingly extends into the nozzle and is connected with the inner wall of the nozzle. The structure is favorable for improving the flow guide effect of the positioning column.

Preferably, a second flow guiding surface with a diameter gradually increasing from inside to outside is formed at the inner edge of the water inlet at the bottom of the body. The structure is favorable for avoiding the water flow disorder at the water inlet and reducing the energy loss.

The utility model discloses in, the body bottom is provided with along circumference interval arrangement and can drive body pivoted blade under the water impact, the at least part of blade inner links up with second water conservancy diversion face mutually. Under the impact of water flow, the blades rotate to drive the nozzle to rotate, so that the nozzle is ensured to have a higher rotating speed.

Preferably, the inner ends of the upper parts of the blades are connected to the outer peripheral wall of the body, the lower parts of the blades are positioned below the body, and the inner ends of the lower parts of the blades extend inwards to be connected with the bottom wall of the body and the second flow guide surface. The inner end surfaces of the blades extend outwards from the inner edge of the second flow guide surface along the radial direction from top to bottom to form a third flow guide surface, and the third flow guide surface is lower than the second flow guide surface. The structure is favorable for reducing the energy loss of water flow at the water inlet.

Preferably, at least a portion of the vane near the outer end is gradually reduced in height in the up-down direction from the inside to the outside in the radial direction of the nozzle. The upper surfaces of the vanes at least near the outer end portion are gradually lowered from the inside to the outside in the radial direction of the nozzle. The structure is beneficial to reducing the resistance of the blade and improving the rotating speed.

Preferably, the thickness of the vane near the outer end portion is gradually thinned from the inside to the outside in the radial direction of the nozzle. The first side wall of the blade near the outer end part gradually approaches to the second side wall opposite to the first side wall from inside to outside along the radial direction of the nozzle, so that the blade is gradually thinned to form a fourth guide surface. The structure is beneficial to further reducing resistance and energy loss and improving the rotating speed.

A spray arm comprises a flow channel, a water spraying hole and the spray nozzle, wherein the water spraying hole is communicated with the flow channel, the spray nozzle can penetrate through the water spraying hole in a rotating mode, the spray nozzle is located outside the water spraying hole, and a positioning groove which is located below a positioning column and is matched with the positioning column in a rotating mode is formed in the flow channel.

The cleaning machine comprises a box body, a water pumping mechanism and the spraying arm, wherein the spraying arm can be rotatably arranged in the box body, and the water pumping mechanism is used for pumping water at the bottom of the box body into the spraying arm.

Compared with the prior art, the utility model has the advantages of: the utility model arranges the positioning column extending to the lower part of the body in the nozzle, and the positioning column can limit the rotation center of the nozzle in the axial direction of the nozzle, thereby avoiding the shaking and jamming of the nozzle caused by the eccentric force of the jet water column of the deflection nozzle, improving the rotation stability of the nozzle and further improving the uniformity of the cleaning degree; meanwhile, the positioning column can also axially guide water flow entering the nozzle from bottom to top, so that water flow disorder and energy loss are reduced, a larger jet lift and pressure are kept, and the cleaning effect is improved.

Drawings

Fig. 1 is a schematic structural view of a nozzle in an embodiment of the present invention;

FIG. 2 is a schematic bottom view of FIG. 1;

FIG. 3 is a cross-sectional view of a nozzle in an embodiment of the present invention;

FIG. 4 is another cross-sectional view of a nozzle in an embodiment of the invention;

fig. 5 is a schematic structural view of the spray arm in the embodiment of the present invention;

fig. 6 is a schematic view of a usage state of the spray arm in the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 6, the nozzle of the present embodiment is used for being rotatably connected to a water spraying hole 13 of a water spraying member, the water spraying member of the present embodiment may be a spray arm 1, the interior of the spray arm 1 is hollow to form a flow channel 11, a lower side wall of the spray arm 1 is provided with a water inlet 12 communicated with the flow channel 11, and an upper side wall of the spray arm 1 is provided with a water spraying hole 13 communicated with the flow channel 11.

The nozzle of the embodiment comprises a body 2 with a liquid collecting cavity 21, wherein the bottom of the body 2 is open to form a water inlet 22, the top of the body 2 is closed, a nozzle 23 eccentrically arranged along the water spraying hole 13 is opened at the top of the body 2, a positioning column 24 which extends downwards below the water inlet 22 and is used for limiting rotation with the spray arm 1 is arranged in the body 2, and the positioning column 24 extends along the axial direction of the body 2.

Specifically, the upper end of the positioning column 24 is connected to the inner top wall of the main body 2, and the lower end extends below the water inlet 22. The structure can avoid the interference between the nozzle and the water spraying component after positioning the nozzle.

The cross section of the nozzle is of an inverted U-shaped structure, the nozzle 23 is arranged at the closed end of the U-shaped structure and close to one side of the closed end, and the upper end of the positioning column 24 is connected to the inner bottom wall of the closed end of the U-shaped structure and close to the nozzle 23. By adopting the structure, water passing through the water spraying holes 13 can be guided and can rotate along with the nozzle to form a conical water column, and compared with a linear water column sprayed in the prior art, the conical water column has wider coverage area, is beneficial to eliminating a cleaning dead angle and covering all areas for placing tableware; positioning column 24 is close to spout 23 and arranges, can also carry out radial guide to rivers, avoids rivers disorder, reduces energy loss, keeps higher injection lift and water pressure, improves the cleaning performance.

The axis of the nozzle 23 and the axis of the positioning column 24 form an included angle m of 10 to 30 degrees, preferably 18 to 22 degrees. Through the angle setting, the cover surface of the formed conical water column is controlled, and the washing effect of the area needing to be washed is improved in a more targeted manner.

In the present embodiment, the positioning pillar 24 is located at the central portion of the liquid collecting chamber 21, and one side edge of the upper end of the positioning pillar 24 is engaged with the relatively high edge of the nozzle 23. The inner top wall of the body 2 is provided with a first guide surface 231 arranged around the periphery of the spout 23, and the first guide surface 231 forms an arc structure gradually extending outward from the edge of the spout 23. One part of the upper end of the positioning post 24 is connected to the first guiding surface 231, and the other part is connected to the inner top wall of the main body 2 outside the first guiding surface 231. The upper end of the positioning post 24 and the outer edge of the portion of the first guiding surface 231 connected extend into the nozzle 23 and are connected to the inner wall of the nozzle 23. The structure is favorable for improving the flow guide effect of the positioning column.

A second guide surface 221 having a diameter gradually increasing from the inside to the outside is formed at the inner edge of the water inlet 22 at the bottom of the body 2. This configuration is advantageous in avoiding turbulence at the water inlet 22 and reducing energy losses.

In this embodiment, the bottom of the body 2 is provided with blades 25 which are circumferentially spaced and can drive the body 2 to rotate under the impact of water flow, and the inner part of the blades 25 is connected with the second flow guiding surface 221. Under the impact of the water flow, the blades 25 rotate to drive the nozzle to rotate, so as to ensure that the nozzle has a larger rotating speed.

The inner end of the upper part of the vane 25 is connected to the outer peripheral wall of the body 2, and the lower part of the vane 25 is located below the body 2 and the inner end extends inwards to be connected with the bottom wall of the body 2 and the second flow guiding surface 221. The inner end surface of the blade 25 extends from the inner edge of the second guide surface 221 radially outward from the top to the bottom to form a third guide surface 251, and the third guide surface 251 is arranged lower than the second guide surface 221. The above configuration is advantageous in reducing the energy loss of the water flow at the water inlet 22.

The height of the part of the blade 25 close to the outer end in the up-down direction is gradually reduced from the inside to the outside along the radial direction of the nozzle; the upper surfaces of the vanes 25 near the outer end portions are gradually lowered from the inside to the outside in the radial direction of the nozzle. This structure is advantageous for reducing the resistance of the blade 25 and increasing the rotation speed. The thickness of the blade 25 near the outer end portion becomes gradually thinner from the inside to the outside in the radial direction of the nozzle; a first sidewall of the vane 25 near the outer end portion gradually gets closer to a second sidewall opposite thereto from inside to outside in the radial direction of the nozzle so that the vane 25 gradually gets thinner to form the fourth guide surface 252. The structure is beneficial to further reducing resistance and energy loss and improving the rotating speed.

The spray arm 1 of the present embodiment includes a flow channel 11 and a water spraying hole 13 communicated with the flow channel 11, and further includes the above-mentioned nozzle, the nozzle can rotatably penetrate the water spraying hole 13, the nozzle 23 is located outside the water spraying hole 13, and the flow channel 11 is provided with a positioning groove 14 located below the positioning column 24 and rotatably matched with the positioning column 24.

It should be noted that, in the present embodiment, one nozzle 23 is provided in the nozzle 2, but in actual production, more than one nozzle 23 may be provided as needed.

The cleaning machine of this embodiment includes box and pump water mechanism (not shown in the figure), still includes above-mentioned spray arm 1, and spray arm 1 can locate in the box with rotating, and pump water mechanism is arranged in pump to spray arm 1 with the water pump of bottom of the box.

This embodiment has set up ability pivoted nozzle 2 on the hole for water spraying 13 of spray arm 1, it has spout 21 along hole for water spraying 13 eccentric arrangement to open on this nozzle 2, at the rotation in-process of spray arm 1, spout 21 rotates along with nozzle 2 and erupts the toper water column a that the lower extreme is little, the upper end is big, such water column cover face is than straight line formula water column and improves greatly itself, and along with the rotation of spray arm 1 itself, this toper water column a can cover bigger washing region b, be favorable to eliminating and wash the dead angle, improve the cleaning performance.

In the embodiment, the positioning column 24 extending to the lower part of the body 2 is arranged in the nozzle, and the positioning column 24 can limit the rotation center of the nozzle in the axial direction of the nozzle, so that the shaking and clamping stagnation of the nozzle caused by the eccentric force of the water column sprayed by the deflection nozzle 23 are avoided, the rotation stability of the nozzle is improved, and the uniformity of the cleaning degree is improved; meanwhile, the positioning column 24 can also axially guide the water flow entering the nozzle from bottom to top, so that the water flow disorder and the energy loss are reduced, the larger jet lift and pressure are kept, 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 present invention, but these terms are used herein for convenience of description only and are determined based on example orientations shown in the drawings. Because the disclosed embodiments may be arranged in different orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, and for example, "upper" and "lower" are not necessarily limited to orientations opposite or consistent with the direction of gravity.

Claims

1. A nozzle for a washing machine, for the rotary connection with the water jet (13) of a water jet member, comprising a body (2) with a collecting chamber (21), the bottom of the body (2) being open to form a water inlet (22), the top of the body (2) being closed, the top of the body (2) being provided with nozzles (23) arranged eccentrically along the water jet (13), characterized in that: the body (2) is internally provided with a positioning column (24) which extends downwards to the lower part of the water inlet (22) and is used for limiting the rotation of the water spraying component, and the positioning column (24) extends along the axial direction of the body (2).

2. The nozzle for a washing machine as claimed in claim 1, wherein: the upper end of the positioning column (24) is connected with the inner top wall of the body (2), and the lower end extends to the lower part of the water inlet (22).

3. The nozzle for a washing machine as claimed in claim 2, characterized in that: the cross section of the nozzle is of an inverted U-shaped structure, the nozzle (23) is arranged at the closed end of the U-shaped structure and close to one side of the closed end, and the upper end of the positioning column (24) is connected to the inner bottom wall of the closed end of the U-shaped structure and close to the nozzle (23).

4. The nozzle for a washing machine as claimed in claim 3, characterized in that: an included angle (m) of 10-30 degrees is formed between the axis of the nozzle (23) and the axis of the positioning column (24).

5. The nozzle for a washing machine as claimed in claim 4, wherein: an included angle (m) of 18-22 degrees is formed between the axis of the nozzle (23) and the axis of the positioning column (24).

6. A nozzle for a washing machine as claimed in claim 3, characterized in that: the positioning column (24) is located at the center of the liquid collection cavity (21), and the edge of one side part of the upper end of the positioning column (24) is connected with the corresponding edge of the nozzle (23).

7. The nozzle for a washing machine as claimed in claim 6, characterized in that: the inner top wall of the body (2) is provided with a first flow guide surface (231) arranged around the periphery of the nozzle (23), and the first flow guide surface (231) forms an arc-shaped structure extending outwards gradually from the edge of the nozzle (23).

8. The nozzle for a washing machine as claimed in claim 7, characterized in that: one part of the upper end of the positioning column (24) is connected with the first flow guide surface (231), and the other part of the upper end of the positioning column is connected with the inner top wall of the body (2) outside the first flow guide surface (231).

9. The nozzle for a washing machine as claimed in claim 8, characterized in that: the outer edge of the part, connected with the first flow guide surface (231), of the upper end of the positioning column (24) correspondingly extends into the nozzle (23) and is connected with the inner wall of the nozzle (23).

10. The nozzle for a washing machine as claimed in any one of claims 1 to 9, characterized in that: a second flow guide surface (221) with the diameter gradually increasing from inside to outside is formed at the inner edge of the water inlet (22) at the bottom of the body (2).

11. The nozzle for a washing machine as claimed in claim 10, characterized in that: the bottom of the body (2) is provided with blades (25) which are arranged at intervals along the circumferential direction and can drive the body (2) to rotate under the impact of water flow, and at least part of the inner ends of the blades (25) is connected with the second flow guide surface (221).

12. The nozzle for a washing machine as claimed in claim 11, characterized in that: the inner end of the upper part of the blade (25) is connected to the peripheral wall of the body (2), the lower part of the blade (25) is positioned below the body (2), and the inner end extends inwards to be connected with the bottom wall of the body (2) and the second flow guide surface (221).

13. A nozzle for a cleaning machine as defined in claim 12, wherein: the inner end face of each blade (25) extends outwards from the inner edge of the second flow guide face (221) in the radial direction from top to bottom to form a third flow guide face (251), and the third flow guide face (251) is lower than the second flow guide face (221) in arrangement.

14. A nozzle for a cleaning machine as defined in claim 11, wherein: the height of at least the portion of the vane (25) near the outer end in the up-down direction is gradually reduced from the inside to the outside in the radial direction of the nozzle.

15. The nozzle for a washing machine as claimed in claim 11, characterized in that: the upper surfaces of the vanes (25) at least near the outer end portion are gradually lowered from the inside to the outside in the radial direction of the nozzle.

16. The nozzle for a washing machine as claimed in claim 11, characterized in that: the thickness of the blade (25) near the outer end part becomes thinner from the inside to the outside along the radial direction of the nozzle.

17. A nozzle for a cleaning machine as defined in claim 12, wherein: the first side wall of the blade (25) near the outer end portion gradually approaches the second side wall opposite to the first side wall from inside to outside in the radial direction of the nozzle to form a fourth guide surface (252).

18. A spray arm comprises a flow channel and a water spraying hole (13) communicated with the flow channel, and is characterized in that: the nozzle of any one of claims 1 to 17, which is rotatably arranged through the water spray hole (13), wherein the nozzle opening (23) is located outside the water spray hole (13), and wherein a positioning groove (14) is arranged in the flow channel, which is located below the positioning column (24) and is rotatably matched with the positioning column (24).

19. The utility model provides a cleaning machine, includes box and pump water mechanism, its characterized in that: the spray arm of claim 18, further comprising a spray arm rotatably disposed in the housing, the water pumping mechanism for pumping water from the bottom of the housing into the spray arm.