CN213721818U

CN213721818U - Rinsing arm component and dish washing machine with same

Info

Publication number: CN213721818U
Application number: CN202021514059.XU
Authority: CN
Inventors: 王晓东; 徐浩
Original assignee: Shanghai Minglue Artificial Intelligence Group Co Ltd
Current assignee: Shanghai Minglue Artificial Intelligence Group Co Ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-07-20
Anticipated expiration: 2030-07-27

Abstract

The utility model provides a rinsing arm subassembly and have its dish washer. Wherein, rinsing arm subassembly includes: the rinsing arm comprises a sleeve and an arm body, the arm body is arranged on the sleeve, and a first inner cavity of the arm body is communicated with a second inner cavity of the sleeve; the water distribution structure is arranged in the sleeve in a penetrating mode and is provided with a liquid inlet channel and a liquid distribution channel, the liquid inlet channel is communicated with the second inner cavity through the liquid distribution channel, and the rinsing water tank is communicated with the liquid inlet channel; and the sealing structure is arranged in the second inner cavity and is positioned between the cavity wall of the second inner cavity and the outer surface of the water diversion structure so as to prevent the rinsing water from leaking from the sleeve. The utility model discloses the problem of easily taking place the rinsing water leakage among the rinsing arm subassembly among the prior art has been solved effectively.

Description

Rinsing arm component and dish washing machine with same

Technical Field

The utility model relates to a dish washer technical field particularly, relates to a rinsing arm subassembly and have its dish washer.

Background

Commercial dishwashers have become an integral cleaning device for the back of a restaurant. Wherein, the washing of the commercial dish washer to the tableware is mainly divided into two stages: a main wash phase and a rinse phase. The main wash stage uses main wash water containing detergent in a main wash tank for the main wash arm assembly and rotates to wash dishes. The rinsing stage uses high temperature clean water for the rinsing arm subassembly to rotate to carry out the final washing to the tableware, and then will be detained the main wash water raffinate on the tableware and wash totally.

However, in the prior art, the rinsing arm assembly has poor sealing performance, so that the phenomenon that rinsing water leaks from the rinsing arm assembly is easy to occur, the consumption of the rinsing water is high, and the power consumption of the rinsing arm assembly is increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a rinsing arm subassembly and have its dish washer to easily take place the problem that the rinsing water leaked among the rinsing arm subassembly among the solution prior art.

In order to achieve the above object, according to one aspect of the present invention, there is provided a rinsing arm assembly including: the rinsing arm comprises a sleeve and an arm body, the arm body is arranged on the sleeve, and a first inner cavity of the arm body is communicated with a second inner cavity of the sleeve; the water distribution structure is arranged in the sleeve in a penetrating mode and is provided with a liquid inlet channel and a liquid distribution channel, the liquid inlet channel is communicated with the second inner cavity through the liquid distribution channel, and the rinsing water tank is communicated with the liquid inlet channel; and the sealing structure is arranged in the second inner cavity and is positioned between the cavity wall of the second inner cavity and the outer surface of the water diversion structure so as to prevent the rinsing water from leaking from the sleeve.

Furtherly, feed liquor channel is the contained angle setting with dividing the liquid channel, and seal structure includes: the first sub-sealing structure is positioned above the liquid separation channel; and the second sub sealing structure is positioned below the liquid separation channel.

Further, the water diversion structure includes: the cover body is covered on the first end of the sleeve; the body of rod is connected with the lid, and the body of rod has feed liquor channel and divides liquid channel.

Further, first sub-seal structure includes first annular seal portion, and first annular seal portion has first annular seal face, and first annular seal face is laminated mutually with the surface of the body of rod.

Further, the number of the first annular sealing surfaces is one or more, and when the number of the first annular sealing surfaces is multiple, the multiple first annular sealing surfaces are arranged at intervals along the extending direction of the rod body.

Further, the cavity wall of second inner chamber has first step face, and first sub-seal structure still includes: the first annular sealing part is arranged at the first end of the first connecting ring, and the second end of the first connecting ring is limited and stopped by the first step surface.

Further, the second sub-sealing structure comprises a second annular sealing portion, the second annular sealing portion is provided with a second annular sealing surface, and the second annular sealing surface is attached to the outer surface of the rod body.

Further, the number of the second annular sealing surfaces is one or more, and when the number of the second annular sealing surfaces is multiple, the multiple second annular sealing surfaces are arranged at intervals along the extending direction of the rod body.

Further, the cavity wall of second inner chamber has the second step face, and the sub-seal structure of second still includes: and the second annular sealing part is arranged at the first end of the second connecting ring, and the second end of the second connecting ring is limited and stopped with the second step surface.

Further, the wand body has an externally threaded section, and the rinse arm assembly further comprises: the locking structure is provided with an internal thread hole, and the internal thread hole is in threaded connection with the external thread section so as to realize the locking of the locking structure on the rod body and the sleeve; and the sealing gasket is arranged on the locking structure and positioned on one side of the locking structure far away from the sleeve, so as to seal the joint of the rinsing water tank and the water diversion structure.

According to another aspect of the utility model, a dishwasher is provided, comprising a rinsing water tank and a rinsing arm component, wherein the rinsing water tank is communicated with a liquid inlet channel of the rinsing arm component; wherein, the rinsing arm subassembly is above-mentioned rinsing arm subassembly.

Use the technical scheme of the utility model, rinsing arm subassembly includes rinsing arm, division structures and seal structure. Wherein, divide the water structure to wear to establish in the sleeve, divide the water structure to have inlet channel and divide the liquid channel, inlet channel passes through to divide liquid channel and second inner chamber intercommunication, and rinsing water tank and inlet channel intercommunication. A sealing structure is disposed in the second inner cavity between a cavity wall of the second inner cavity and an outer surface of the water diversion structure to prevent the rinse water from leaking out of the sleeve. Like this, when needs rinsing arm subassembly carries out the rinsing, with rinsing water tank and inlet channel intercommunication, the rinsing water that is located in the rinsing water tank passes through inlet channel and gets into to divide the liquid channel in to it is internal to enter into the arm through dividing the liquid channel, finally discharge to waiting to rinse on the tableware from the arm. Wherein, seal structure is used for sealing up the junction of the chamber wall of the second inner chamber of sleeve and the surface of water diversion structure to prevent that rinsing water from leaking and influencing the leakproofness of rinsing arm subassembly in the sleeve, and then solved among the prior art problem that easily takes place rinsing water leakage among the rinsing arm subassembly, reduce the consumption of rinsing water, reduced the power consumption of rinsing arm subassembly.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

figure 1 shows a front view of an embodiment of a rinse arm assembly according to the invention;

FIG. 2 shows a side view of the rinse arm assembly of FIG. 1;

FIG. 3 shows a top view of the rinse arm assembly of FIG. 1;

FIG. 4 shows a cross-sectional view A-A of the rinse arm assembly of FIG. 3;

FIG. 5 shows an enlarged schematic view at B of the rinse arm assembly of FIG. 4;

FIG. 6 shows an enlarged schematic view at C of the rinse arm assembly of FIG. 5; and

fig. 7 shows an enlarged schematic view at D of the rinse arm assembly of fig. 5.

Wherein the figures include the following reference numerals:

10. rinsing the arm; 11. a sleeve; 111. a second lumen; 111a, a first step surface; 111b, a second step surface; 12. an arm body; 121. a first lumen; 13. a water outlet part; 20. a water diversion structure; 21. a liquid inlet channel; 22. a liquid separation channel; 23. a cover body; 24. a rod body; 25. a grip portion; 30. a first sub-sealing structure; 31. a first annular seal portion; 311. a first annular sealing surface; 32. a first connecting ring; 40. a second sub-sealing structure; 41. a second annular seal portion; 411. a second annular sealing surface; 42. a second connection ring; 50. a locking structure; 51. an internally threaded bore; 60. a gasket seal.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.

In order to solve the problem that the leakage of rinsing water easily occurs in a rinsing arm assembly in the prior art, the application provides the rinsing arm assembly and the dishwasher with the same.

As shown in fig. 1 to 7, the rinsing arm assembly includes a rinsing arm 10, a water dividing structure 20, and a sealing structure. The rinsing arm 10 includes a sleeve 11 and an arm 12, the arm 12 is disposed on the sleeve 11, and a first inner cavity 121 of the arm 12 is communicated with a second inner cavity 111 of the sleeve 11. The water diversion structure 20 is arranged in the sleeve 11 in a penetrating mode, the water diversion structure 20 is provided with a liquid inlet channel 21 and a liquid distribution channel 22, the liquid inlet channel 21 is communicated with the second inner cavity 111 through the liquid distribution channel 22, and the rinsing water tank is communicated with the liquid inlet channel 21. A sealing structure is provided in the second inner cavity 111 between the wall of the second inner cavity 111 and the outer surface of the water dividing structure 20 to prevent the rinse water from leaking out of the sleeve 11.

By using the technical scheme of the embodiment, when the rinsing arm assembly is required to be rinsed, the rinsing water tank is communicated with the liquid inlet channel 21, rinsing water in the rinsing water tank enters the liquid separating channel 22 through the liquid inlet channel 21, enters the arm body 12 through the liquid separating channel 22, and is finally discharged onto tableware to be rinsed from the arm body 12. Wherein, seal structure is used for sealing the junction of the chamber wall of the second inner chamber 111 of sleeve 11 and the surface of water diversion structure 20 to prevent that rinsing water from leaking in sleeve 11 and influencing the leakproofness of rinsing arm subassembly, and then solved among the prior art problem that easily takes place rinsing water leakage among the rinsing arm subassembly, reduce the consumption of rinsing water, reduced the power consumption of rinsing arm subassembly.

As shown in fig. 4 and 5, the liquid inlet channel 21 and the liquid separating channel 22 are arranged at an angle, and the sealing structure comprises a first sub-sealing structure 30 and a second sub-sealing structure 40. Wherein the first sub-sealing structure 30 is located above the liquid separation channel 22. The second sub-sealing structure 40 is located below the dispensing channel 22. In this way, the first sub-sealing structure 30 is used for sealing the joint between the cavity wall of the sleeve 11 located above the liquid distribution channel 22 and the outer surface of the water distribution structure 20, and the second sub-sealing structure 40 is used for sealing the joint between the cavity wall of the sleeve 11 located below the liquid distribution channel 22 and the outer surface of the water distribution structure 20, so as to sufficiently seal the joint between the sleeve 11 and the water distribution structure 20, further prevent the rinse water from leaking from the sleeve 11, and further improve the sealing performance of the rinse arm assembly.

In this embodiment, the liquid inlet channel 21 and the liquid separating channel 22 are perpendicular to each other. It should be noted that the included angle between the liquid inlet channel 21 and the liquid separating channel 22 is not limited thereto. Optionally, the liquid inlet channel 21 and the liquid separating channel 22 form an angle of 30 degrees, or an angle of 45 degrees, or an angle of 60 degrees.

In this embodiment, the number of the arms 12 is two, the number of the liquid distribution channels 22 is two, the two liquid distribution channels 22 are arranged in one-to-one correspondence with the two arms 12, and rinse water in the rinse water tank enters the liquid inlet channel 21 and then enters the liquid distribution channels 22 respectively, so that the rinse water enters the two arms 12 respectively, and the rinsing range of the rinsing arm assembly is widened.

The number of the arms 12 is not limited to this, and may be adjusted according to the operating conditions. Optionally, the arms 12 are three or four or five or six or seven or more.

The number of the liquid separation channels 22 is not limited to this, and may be the same as the number of the arms 12. Optionally, the number of separation channels 22 is three or four or five or six or seven or more.

As shown in fig. 5, the water diversion structure 20 includes a cover 23 and a rod 24. Wherein the cover 23 covers the first end of the sleeve 11. The rod body 24 is connected with the cover body 23, and the rod body 24 is provided with a liquid inlet channel 21 and a liquid separating channel 22. In this way, the cover 23 covers the first end of the sleeve 11 to close the first end. Meanwhile, the structure of the water diversion structure 20 is simpler, the water diversion structure is easy to process and realize, and the processing cost of the water diversion structure 20 is reduced.

Specifically, the rinsing water enters the water dividing structure 20 from the liquid inlet channel 21, enters the first inner cavity 121 of the arm body 12 through the water dividing channel 22, and is finally sprayed to the tableware to be rinsed through the water outlet part 13, so that the rinsing arm assembly can be used normally.

As shown in fig. 5 and 6, the first sub-sealing structure 30 includes a first annular sealing portion 31, the first annular sealing portion 31 has a first annular sealing surface 311, and the first annular sealing surface 311 is attached to the outer surface of the rod body 24. In this way, the first sub-sealing structure 30 is disposed in the second inner cavity 111, and the first annular sealing surface 311 is attached to the outer surface of the rod 24 to seal the rod 24, so as to prevent the rinse water from flowing out of the sleeve 11 along the outer surface of the rod 24, thereby further improving the sealing reliability of the first sub-sealing structure 30. Meanwhile, the central axis of the first annular sealing surface 311 is coaxial with the central axis of the rod body 24, so that the first annular sealing surface and the rod body can be better attached to each other.

In this embodiment, the first annular sealing portion 31 is disposed on the rod 24 and is in interference fit with the rod 24.

Alternatively, the number of the first annular sealing surfaces 311 is one or more, and when the number of the first annular sealing surfaces 311 is plural, the plural first annular sealing surfaces 311 are provided at intervals along the extending direction of the rod body 24. In this embodiment, there are two first annular sealing surfaces 311, and the two first annular sealing surfaces 311 are disposed at intervals along the extending direction of the rod 24, so as to improve the sealing reliability of the first sub-sealing structure 30, and further prevent the rinse water from leaking out of the sleeve 11 along the outer surface of the rod 24.

The number of the first annular sealing surface 311 is not limited to this, and may be adjusted according to the length or the operating condition of the rod body 24. Alternatively, the first annular sealing surface 311 is one or three or four or five or six or more.

As shown in fig. 6, the cavity wall of the second inner cavity 111 has a first step surface 111a, and the first sub-sealing structure 30 further includes a first connection ring 32. The first annular sealing portion 31 is disposed at a first end of the first connecting ring 32, and a second end of the first connecting ring 32 is limited and stopped by the first step surface 111 a. Thus, the arrangement can prevent the first sub-sealing structure 30 from shifting or shifting in the second inner cavity 111 to affect the sealing reliability of the first sub-sealing structure 30, the structural layout in the sleeve 11 is more reasonable and compact, and the internal structural stability of the rinsing arm assembly is improved. Meanwhile, the structure of the first sub-sealing structure 30 is simpler, and the first sub-sealing structure is easy to process and realize, so that the processing cost of the first sub-sealing structure 30 is reduced.

As shown in fig. 5 and 7, the second sub-sealing structure 40 includes a second annular sealing portion 41, the second annular sealing portion 41 has a second annular sealing surface 411, and the second annular sealing surface 411 is attached to the outer surface of the rod body 24. In this way, the second sub-sealing structure 40 is disposed in the second inner cavity 111, and the second annular sealing surface 411 is attached to the outer surface of the rod 24 to seal the rod 24, so as to prevent the rinse water from flowing out of the sleeve 11 along the outer surface of the rod 24, thereby further improving the sealing reliability of the second sub-sealing structure 40. Meanwhile, the central axis of the second annular sealing surface 411 is coaxial with the central axis of the rod body 24, so that the two can be better attached.

In this embodiment, the second annular sealing portion 41 is disposed on the rod 24 and is in interference fit with the rod 24.

Alternatively, the number of second annular seal surfaces 411 is one or more, and when there are a plurality of second annular seal surfaces 411, the plurality of second annular seal surfaces 411 are provided at intervals along the extending direction of rod body 24. In this embodiment, there are two second annular sealing surfaces 411, and the two second annular sealing surfaces 411 are spaced apart from each other along the extending direction of the rod 24, so as to improve the sealing reliability of the second sub-sealing structure 40, and further prevent the rinse water from leaking out of the sleeve 11 along the outer surface of the rod 24.

It should be noted that the number of second annular sealing surface 411 is not limited to this, and may be adjusted according to the length or working condition of rod 24. Alternatively, second annular sealing surface 411 is one or three or four or five or six or more.

As shown in fig. 7, the cavity wall of the second inner cavity 111 has a second step surface 111b, and the second sub-sealing structure 40 further includes a second connection ring 42. Wherein the second annular sealing portion 41 is disposed at a first end of the second connection ring 42, and a second end of the second connection ring 42 is in limit stop with the second stepped surface 111 b. Thus, the arrangement can prevent the second sub-sealing structure 40 from shifting or shifting in the second inner cavity 111 to affect the sealing reliability of the second sub-sealing structure 40, the structural layout in the sleeve 11 is more reasonable and compact, and the internal structural stability of the rinsing arm assembly is improved. Meanwhile, the structure of the second sub-sealing structure 40 is simpler, the processing and the realization are easy, and the processing cost of the second sub-sealing structure 40 is reduced.

As shown in fig. 4 and 5, the wand 24 has an externally threaded section and the rinse arm assembly further comprises a locking structure 50 and a sealing gasket 60. Wherein, the locking structure 50 has an internal threaded hole 51, and the internal threaded hole 51 is in threaded connection with the external threaded section, so as to realize the locking of the rod body 24 and the sleeve 11 by the locking structure 50. A sealing gasket 60 is provided on the locking structure 50 on a side of the locking structure 50 remote from the sleeve 11 for sealing a junction of the rinsing water tank and the water diversion structure 20. Thus, the locking structure 50 locks to the second end of the sleeve 11 to lock the wand 24 and the sleeve 11 together to prevent them from becoming disengaged from each other and interfering with the normal use of the rinse arm assembly. Meanwhile, the sealing gasket 60 is used for sealing the joint of the rinsing water tank and the water diversion structure 20, so that the rinsing water leakage at the joint of the rinsing water tank and the water diversion structure is prevented, and the consumption of the rinsing water is increased.

Optionally, the sealing gasket 60 is made of rubber or silicone.

As shown in fig. 5, the water diversion structure 20 further includes a grip portion 25. The holding portion 25 is disposed on the cover 23 and located on a side of the cover 23 away from the rod 24. Thus, the arrangement makes the operation of the water diversion structure 20 easier and simpler for workers, and reduces the operation difficulty. Alternatively, the grip portion 25 is a rod-like structure.

In the present embodiment, the central axis of the rod body 24 is disposed coaxially with the central axis of the sleeve 11. Thus, the arrangement makes the water diversion structure 20 and the sleeve 11 easier and simpler to disassemble and assemble, and reduces the disassembling and assembling difficulty of workers.

The present application also provides a dishwasher (not shown) comprising a rinse water tank and a rinse arm assembly, the rinse water tank being in communication with the inlet passage 21 of the rinse arm assembly. Wherein, the rinsing arm subassembly is above-mentioned rinsing arm subassembly. Like this, treat that the dish washer accomplishes the main wash operation back to the tableware, be located the rinsing water of rinsing water tank and carry to the rinsing arm subassembly in, drive arrangement drives the rinsing arm rotation to it is clean with remaining main wash water on the tableware through the rinsing arm subassembly, and then has promoted dish washer's cleaning efficiency.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

when needing the rinsing arm subassembly to carry out the rinsing, with rinsing water tank and inlet channel intercommunication, the rinsing water that is located in the rinsing water tank passes through inlet channel and gets into to divide the liquid channel in to it is internal to enter into the arm through dividing the liquid channel, finally discharges to waiting to rinse on the tableware from the arm. Wherein, seal structure is used for sealing up the junction of the chamber wall of the second inner chamber of sleeve and the surface of water diversion structure to prevent that rinsing water from leaking and influencing the leakproofness of rinsing arm subassembly in the sleeve, and then solved among the prior art problem that easily takes place rinsing water leakage among the rinsing arm subassembly, reduce the consumption of rinsing water, reduced the power consumption of rinsing arm subassembly.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rinse arm assembly, comprising:

the rinsing arm (10) comprises a sleeve (11) and an arm body (12), wherein the arm body (12) is arranged on the sleeve (11), and a first inner cavity (121) of the arm body (12) is communicated with a second inner cavity (111) of the sleeve (11);

the water distribution structure (20) is arranged in the sleeve (11) in a penetrating mode, the water distribution structure (20) is provided with a liquid inlet channel (21) and a liquid distribution channel (22), the liquid inlet channel (21) is communicated with the second inner cavity (111) through the liquid distribution channel (22), and the rinsing water tank is communicated with the liquid inlet channel (21);

a sealing structure arranged in the second inner cavity (111) and between the wall of the second inner cavity (111) and the outer surface of the water diversion structure (20) to prevent the rinsing water from leaking from the sleeve (11).

2. A rinse arm assembly according to claim 1, characterized in that said inlet channel (21) is disposed at an angle to said dispensing channel (22), said sealing structure comprising:

a first sub-sealing structure (30) located above the liquid separation channel (22);

and the second sub sealing structure (40) is positioned below the liquid separation channel (22).

3. The rinse arm assembly of claim 2, characterized in that said water diversion structure (20) comprises:

the cover body (23) is arranged on the first end of the sleeve (11) in a covering mode;

the rod body (24) is connected with the cover body (23), and the rod body (24) is provided with the liquid inlet channel (21) and the liquid separating channel (22).

4. A rinse arm assembly according to claim 3, characterized in that the first sub-sealing structure (30) comprises a first annular sealing portion (31), the first annular sealing portion (31) having a first annular sealing surface (311), the first annular sealing surface (311) conforming to the outer surface of the wand (24).

5. The rinse arm assembly of claim 4, characterized in that said first annular sealing surface (311) is one or more, when said first annular sealing surface (311) is plural, a plurality of said first annular sealing surfaces (311) are provided at intervals along the extension direction of said shaft body (24).

6. The rinse arm assembly of claim 4, characterized in that the chamber wall of the second internal chamber (111) has a first step face (111a), the first sub-seal structure (30) further comprising:

the first annular sealing part (31) is arranged at the first end of the first connecting ring (32), and the second end of the first connecting ring (32) is limited and stopped by the first step surface (111 a).

7. A rinse arm assembly according to claim 3, characterized in that said second sub-sealing structure (40) comprises a second annular sealing portion (41), said second annular sealing portion (41) having a second annular sealing surface (411), said second annular sealing surface (411) conforming to the outer surface of said wand (24).

8. The rinse arm assembly of claim 7, characterized in that said second annular sealing surface (411) is one or more, when said second annular sealing surface (411) is plural, said second annular sealing surface (411) is spaced apart along the extension of said wand (24).

9. The rinse arm assembly of claim 7, characterized in that a wall of the second internal cavity (111) has a second step face (111b), the second sub-seal structure (40) further comprising:

a second connection ring (42), the second annular sealing portion (41) being disposed at a first end of the second connection ring (42), and a second end of the second connection ring (42) being in limit stop with the second step surface (111 b).

10. The rinse arm assembly of claim 3, characterized in that said wand (24) has an externally threaded section, said rinse arm assembly further comprising:

a locking structure (50), wherein the locking structure (50) is provided with an internal threaded hole (51), and the internal threaded hole (51) is in threaded connection with the external threaded section so as to realize the locking of the rod body (24) and the sleeve (11) by the locking structure (50);

the sealing gasket (60) is arranged on the locking structure (50) and located on one side, away from the sleeve (11), of the locking structure (50) and used for sealing the connection position of the rinsing water tank and the water dividing structure (20).

11. A dishwasher, characterized by comprising a rinse water tank and a rinse arm assembly, the rinse water tank being in communication with a feed channel (21) of the rinse arm assembly; wherein the rinse arm assembly is the rinse arm assembly of any of claims 1 to 10.