Spray arm, spray arm assembly and dishwasher

Abstract

The present invention relates to a spray arm, a spray arm assembly and a dishwasher. The spray arm includes: a spray arm main body that extends longitudinally along a first direction; an adjustment block that is detachably coupled to the spray arm main body; wherein the adjustment block can be coupled to different positions of the spray arm main body in the first direction to adjust the center of gravity position of the spray arm main body in the first direction. The user can change the position of the adjustment block in the first direction of the spray arm main body by installing the adjustment block at different positions in the adjustment groove, thereby adjusting the center of gravity position of the spray arm main body in the first direction. Furthermore, during the operation of the spray arm, there is no height difference between the opposite ends in the first direction, ultimately effectively avoiding wear of the spray arm, solving the problem of unstable rotation speed of the spray arm, and improving the cleaning effect of the dishwasher.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to a spray arm, a spray arm assembly and a dishwasher. Background Art

[0002] With the development of society and the improvement of living standards, more and more intelligent household appliances have entered people's lives. Dishwashers that can automatically clean kitchen utensils and other items are becoming more and more widely used. The use of dishwashers has significantly reduced people's housework burden and brought great convenience to people's lives.

[0003] In a dishwasher, a connecting pipe and a spray arm are usually installed. Multiple spray arms are arranged in sequence from top to bottom. Each spray arm is respectively connected to the water outlet end of the connecting pipe, and each spray arm is provided with a plurality of water outlet holes. During the washing process, the spray arm rotates continuously, and the cleaning water enters the spray arm through the connecting pipe and is sprayed out through the water outlet holes of the spray arm, thereby realizing the cleaning of kitchen utensils.

[0004] In order to improve the washing performance of the spray arm, the water outlet holes on some spray arms are unevenly arranged. Therefore, it is easy to cause the center of gravity of the spray arm to deviate from its rotation center due to reasons such as water pressure backwash during the operation of the spray arm, resulting in unstable rotation speed of the spray arm, and further affecting the cleaning effect of the dishwasher. Summary of the Invention

[0005] Based on this, in view of the problem that the center of gravity of the spray arm deviates from its rotation center during rotation, it is necessary to provide a spray arm, a spray arm assembly and a dishwasher, which can achieve the technical effect that the center of gravity of the spray arm does not deviate from its rotation center during rotation.

[0006] According to one aspect of the present application, a spray arm is provided, including:

[0007] A spray arm main body extending longitudinally along a first direction; and

[0008] An adjustment block detachably coupled to the spray arm main body;

[0009] Wherein, the adjustment block can be coupled to different positions of the spray arm main body in the first direction to adjust the position of the center of gravity of the spray arm main body in the first direction.

[0010] In one embodiment, an adjustment groove is formed on one side of the spray arm main body, the adjustment groove extends along the first direction, and the adjustment block is detachably limited in the adjustment groove.

[0011] In one embodiment, a first adjustment portion and a second adjustment portion are provided on one side of the spray arm body. The first adjustment portion and the second adjustment portion are spaced apart in a second direction, and an adjustment groove is formed between the first adjustment portion and the second adjustment portion;

[0012] At least one of the first adjustment portion and the second adjustment portion is provided with a plurality of positioning grooves communicating with the adjustment groove. The plurality of positioning grooves located in the first adjustment portion and / or the first adjustment portion are arranged in sequence along the first direction; the adjustment block is detachably clamped in the positioning groove;

[0013] Wherein, the second direction is perpendicular to the first direction.

[0014] In one embodiment, a plurality of first positioning grooves are provided on one side of the first adjustment portion forming the adjustment groove. The plurality of first positioning grooves are arranged in sequence along the first direction. A plurality of second positioning grooves are provided on one side of the second adjustment portion forming the adjustment groove. The plurality of positioning grooves are arranged in sequence along the first direction;

[0015] Opposite sides of the adjustment block in the second direction are respectively selectively limited in one of the first positioning grooves and one of the second positioning grooves.

[0016] In one embodiment, the adjustment block includes an adjustment block body, a first clamping arm, and a second clamping arm. The first clamping arm and the second clamping arm are both connected to one end of the adjustment block body. The adjustment block body is movably limited in the adjustment groove along the first direction. The first clamping arm and the second clamping arm are spaced apart in the second direction;

[0017] The first clamping arm and the second clamping arm can approach or move away from each other in the second direction, so that the first clamping arm disengages from or engages with the first positioning groove, and the second clamping arm disengages from or engages with the second positioning groove.

[0018] In one embodiment, the adjustment groove includes a first limiting space and a second limiting space that communicate with each other. The second limiting space is located on the side of the first limiting space facing the spray arm body. The size of the second limiting space in the second direction is larger than the size of the first limiting space in the second direction;

[0019] The adjustment block body includes a first limiting portion and a second limiting portion that are connected to each other. The size of the second limiting portion in the second direction is larger than the size of the first limiting portion in the second direction. The second limiting portion is limited in the second limiting space, and the first limiting portion is limited in the first limiting space.

[0020] According to another aspect of the present application, there is provided a spray arm assembly including the above-mentioned spray arm. The spray arm body has a water flow channel and a spray arm water inlet communicating with the water flow channel. The spray arm assembly further includes a connecting pipe having a pipe water outlet, and the pipe water outlet of the connecting pipe is detachably fitted to the spray arm water inlet.

[0021] In one embodiment, the spray arm includes an inlet connection portion that circumferentially surrounds the spray arm water inlet. The connecting pipe is provided with an outlet connection portion that circumferentially surrounds the pipe water outlet. The outlet connection portion can undergo recoverable deformation in the radial direction of the pipe water outlet under the action of an external force to sleeved on the inlet connection portion.

[0022] In one embodiment, a clamping edge protruding outward is provided on a side of the inlet connection portion away from the water inlet. The outlet connection portion includes a plurality of connecting buckles arranged at intervals in the circumferential direction. Each connecting buckle can abut against the clamping edge in the central axis direction of the water inlet.

[0023] In one embodiment, the connecting pipe includes a guide nozzle that circumferentially surrounds the pipe water outlet, and the guide nozzle extends into the water inlet.

[0024] According to another aspect of the present application, there is provided a dishwasher including the above-mentioned spray arm assembly.

[0025] For the above-mentioned spray arm, the user can change the position of the adjustment block in the first direction of the spray arm body by installing the adjustment block at different positions in the adjustment groove, so as to adjust the position of the center of gravity of the spray arm body in the first direction. Furthermore, during the operation of the spray arm, there is no height difference between the opposite ends in the first direction, ultimately effectively avoiding wear during the rotation of the spray arm, solving the problem of unstable rotation speed of the spray arm, and effectively improving the cleaning effect of the dishwasher. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of a spray arm assembly according to an embodiment of the present invention;

[0027] Figure 2 is Figure 1 a schematic structural diagram of the spray arm assembly shown from another angle;

[0028] Figure 3 is Figure 1 a cross-sectional view of the spray arm assembly shown;

[0029] Figure 4 is Figure 1 a cross-sectional view of the spray arm of the spray arm assembly shown;

[0030] Figure 5 is Figure 1Partial structural schematic diagram of the spray arm of the shown spray arm assembly;

[0031] Figure 6 For Figure 1 Partial structural schematic diagram of the connecting pipe of the shown spray arm assembly.

[0032] Explanation of the reference numerals in the drawings:

[0033] 100. Spray arm assembly; 20. Spray arm; 21. Spray arm main body; 212. Spray arm water inlet; 214. Water inlet connecting part; 2141. Clamping edge; 216. Water spraying hole; 23. Adjusting part; 232. First adjusting part; 2321. First positioning groove; 234. Second adjusting part; 2341. Second positioning groove; 236. Adjusting groove; 2361. First limiting space; 2363. Second limiting space; 25. Adjusting block; 252. Adjusting block main body; 2521. First limiting part; 2523. Second limiting part; 254. First clamping arm; 256. Second clamping arm; 40. Connecting pipe; 41. Pipe water outlet; 43. Outlet connecting part; 432. Connecting buckle; 45. Deflector nozzle. Detailed implementation manners

[0034] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0037] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0039] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0040] As Figure 1 and Figure 2 shown, an embodiment of the present invention provides a dishwasher, which includes a main body and a spray arm assembly 100 for cleaning tableware and other objects to be cleaned. The spray arm assembly 100 is housed in the main body. The spray arm assembly 100 includes a connecting pipe 40 and a spray arm 20. The connecting pipe 40 includes a pipe water inlet and a pipe water outlet 41 that communicate with each other. The pipe water inlet of the connecting pipe 40 is connected to a water supply device. The spray arm 20 is detachably connected to the pipe water outlet 41 of the connecting pipe 40. When the dishwasher performs a cleaning operation, the connecting pipe 40 delivers the cleaning water provided by the water supply device to the spray arm 20, and the spray arm 20 can rotate around a rotation axis and spray the cleaning water to clean the objects to be cleaned.

[0041] Specifically, the spray arm 20 includes a spray arm main body 21. The spray arm main body 21 has a hollow long-strip-shaped housing structure and extends longitudinally in one direction, thereby forming a water flow channel extending in one direction. One side of the spray arm main body 21 is provided with a spray arm water inlet 212 and a plurality of spray holes 216 that are respectively communicated with the water flow channel. The spray arm water inlet 212 is located at the central position of the spray arm main body 21 in its length direction. The plurality of spray holes 216 are arranged at intervals along the length direction of the spray arm main body 21. The rotation axis of the spray arm main body 21 coincides with the central axis of the spray arm water inlet 212. In the following embodiments, the longitudinal direction of the spray arm main body 21 is the first direction, the width direction of the spray arm main body 21 is the second direction, and the thickness direction of the spray arm main body 21 is the third direction. It can be understood that the shape of the spray arm main body 21 is not limited to this and can be set as needed to meet different requirements.

[0042] As described in the background art, in order to meet the cleaning ability requirements of the dishwasher, the spray holes 216 on the spray arm main body 21 are not evenly arranged. The number and positions of the spray holes 216 on both sides in the first direction are asymmetrically designed, resulting in a height difference at both ends of the spray arm 20 in the first direction due to the water pressure backwash during operation, and further causing wear of the spray arm 20 body during rotation, ultimately leading to problems such as unstable rotation speed and unclean cleaning.

[0043] To solve the above problems, the spray arm 20 of the present application includes an adjustment block 25. The adjustment block 25 is detachably connected to the spray arm main body 21 and can be connected to different positions of the spray arm main body 21 in the first direction, thereby adjusting the position of the center of gravity of the spray arm main body 21 in the first direction, and thus avoiding the generation of a height difference at the opposite ends of the spray arm main body 21 in the first direction during operation.

[0044] As Figures 3 to 5 shown, further, in order to limit the adjustment block 25 on the spray arm main body 21, the spray arm 20 further includes an adjustment member 23. The adjustment member 23 protrudes from the side of the spray arm main body 21 away from the water inlet. The adjustment member 23 includes a first adjustment portion 232 and a second adjustment portion 234. The first adjustment portion 232 and the second adjustment portion 234 are spaced apart in the second direction. An adjustment groove 236 extending in the first direction is formed between the first adjustment portion 232 and the second adjustment portion 234. At least one of the first adjustment portion 232 and the second adjustment portion 234 is provided with a plurality of positioning grooves communicating with the adjustment groove 236. The plurality of positioning grooves located in the first adjustment portion 232 and / or the first adjustment portion 232 are arranged in sequence in the first direction. The adjustment block 25 is detachably clamped in the positioning grooves, thereby being limited to different positions in the first direction of the adjustment groove 236.

[0045] In this way, the user can limit the adjusting block 25 to different positioning slots of the adjusting slot 236 to change the position of the adjusting block 25 in the first direction of the spray arm main body 21, so as to adjust the position of the center of gravity of the spray arm main body 21 in the first direction.

[0046] Specifically, in an embodiment, a plurality of first positioning slots 2321 are provided on one side of the first adjusting portion 232 forming the adjusting slot 236. The plurality of first positioning slots 2321 are arranged in sequence along the first direction. A plurality of second positioning slots 2341 are provided on one side of the second adjusting portion 234 forming the adjusting slot 236. The plurality of second positioning slots 2341 are arranged in sequence along the first direction, and the first positioning slots 2321 on the first adjusting portion 232 and the second positioning slots 2341 on the second adjusting portion 234 are arranged in one-to-one correspondence in the second direction.

[0047] The adjusting block 25 is in a "ji" shape, including an adjusting block main body 252, a first clamping arm 254 and a second clamping arm 256. The adjusting block main body 252 is movably limited in the adjusting slot 236 along the first direction. Both the first clamping arm 254 and the second clamping arm 256 are connected to one end of the adjusting block main body 252. The first clamping arm 254 and the second clamping arm 256 are spaced apart in the second direction. One end of the first clamping arm 254 away from the adjusting block main body 252 is provided with a first clamping portion protruding in a direction away from the second clamping arm 256. The shape of the first clamping portion matches the shape of the positioning slot. One end of the second clamping arm 256 away from the connecting portion is provided with a second clamping portion protruding in a direction away from the first clamping arm 254. The shape of the second clamping portion matches the shape of the positioning slot. The first clamping arm 254 and the second clamping arm 256 can approach or move away from each other in the second direction, so that the first clamping portion of the first clamping arm 254 disengages from or engages with the first positioning slot 2321, and the second clamping portion of the second clamping arm 256 disengages from or engages with the second positioning slot 2341, so that the adjusting block 25 is firmly limited to different positions in the first direction of the adjusting slot 236.

[0048] When it is necessary to adjust the position of the adjusting block 25, a certain pressure can be applied to the first clamping arm 254 and the second clamping arm 256 to make the first clamping arm 254 and the second clamping arm 256 approach each other in the second direction. The first clamping portion disengages from the first positioning slot 2321, and the second clamping portion disengages from the second positioning slot 2341. Then, the adjusting block 25 is moved to the target position and the first clamping arm 254 and the second clamping arm 256 are released. The first clamping arm 254 and the second clamping arm 256 return to the initial state due to the loss of external force. The first clamping portion is re-limited in a first positioning slot 2321, and the second clamping portion is also re-limited in the second positioning slot 2341, thereby realizing the position adjustment of the adjusting block 25.

[0049] Further, in order to limit the adjustment block 25 in the third direction to prevent the adjustment block 25 from falling out of the adjustment slot 236, the adjustment slot 236 is in an inverted "T" shape, including a first limiting space 2361 and a second limiting space 2363 that are interconnected. The second limiting space 2363 is located on the side of the first limiting space 2361 facing the spray arm main body 21. The dimension of the second limiting space 2363 in the second direction is greater than the dimension of the first limiting space 2361 in the second direction. The adjustment slot 236 communicates with the first limiting space 2361.

[0050] The adjustment block main body 252 of the adjustment block 25 includes a first limiting portion 2521 and a second limiting portion 2523 that are connected to each other. The dimension of the second limiting portion 2523 in the second direction is greater than the dimension of the first limiting portion 2521 in the second direction. Moreover, the dimension of the first limiting portion 2521 in the second direction matches the dimension of the first limiting space 2361 in the second direction, and the dimension of the second limiting portion 2523 in the second direction matches the dimension of the second limiting space 2363 in the second direction. Both the first clamping arm 254 and the second clamping arm 256 are connected to the first limiting portion 2521.

[0051] In this way, the second limiting portion 2523 is limited within the second limiting space 2363, and the first limiting portion 2521 is limited within the first limiting space 2361. Since the dimension of the second limiting portion 2523 in the second direction is greater than the dimension of the first limiting space 2361 in the second direction, the adjustment block 25 can only slide along the first direction and will not come out of the adjustment slot 236 along the third direction.

[0052] Please refer to Figure 3 and Figure 6 , in some embodiments, the spray arm 20 further includes a water inlet connection portion 214 surrounding the spray arm water inlet 212. The central axis of the water inlet connection portion 214 coincides with the central axis of the spray arm water inlet 212, and the inner diameter of the water inlet connection portion 214 is the same as the aperture of the spray arm water inlet 212. The connection pipe 40 is provided with a water outlet connection portion 43 surrounding the pipe water outlet 41 in the circumferential direction. The central axis of the water outlet connection portion 43 coincides with the central axis of the pipe water outlet 41. The water outlet connection portion 43 can undergo recoverable deformation in the radial direction of the pipe water outlet 41 under the action of an external force to be sleeved on the water inlet connection portion 214.

[0053] In this way, the spray arm 20 and the connection pipe 40 are rotatably connected through the water inlet connection portion 214 and the water outlet connection portion 43, and the connection method is simple and rapid, thereby improving the installation convenience of the spray arm 20.

[0054] Further, at one end of the water inlet connecting portion 214 away from the spray arm water inlet 212, there is a protruding clamping edge 2141, and the clamping edge 2141 surrounds the water inlet connecting portion 214 in the circumferential direction. The water outlet connecting portion 43 includes a plurality of connecting buckles 432 arranged at intervals in the circumferential direction. Each connecting buckle 432 is connected to one end of the water outlet connecting portion 43 away from the connecting pipe 40 and protrudes towards the pipe water outlet 41. The connecting buckle 432 can abut against the clamping edge 2141 of the water inlet connecting portion 214 in the central axis direction of the spray arm water inlet 212, so as to prevent the spray arm 20 from detaching from the connecting pipe 40 in the third direction.

[0055] In some embodiments, the connecting pipe 40 includes a flow guide nozzle 45 surrounding the pipe water outlet 41 in the circumferential direction, and the outer diameter of the flow guide nozzle 45 is smaller than the aperture of the spray arm water inlet 212 and matches the aperture of the spray arm water inlet 212. Thus, when the connecting pipe 40 is mated with the spray arm 20, the flow guide nozzle 45 extends into the spray arm water inlet 212, thereby preventing water pressure from leaking and ensuring the cleaning effect of the dishwasher.

[0056] In the above dishwasher, by setting the adjusting block 25, the problem that the two ends of the spray arm 20 are inconsistent in height in the length direction during the working process can be solved, thereby avoiding the problems of jamming and abnormal rotation speed caused by the inclination of the spray arm 20. Moreover, the spray arm 20 can be quickly installed on the water outlet connecting portion 43 of the connecting pipe 40 through the water inlet connecting portion 214, and the flow guide nozzle 45 of the connecting pipe 40 extends into the spray arm water inlet 212, thereby preventing water pressure from leaking and ensuring the cleaning effect of the dishwasher.

[0057] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as within the scope described in this specification.

[0058] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A spray arm, characterized in that, Comprising: A spray arm main body (21), longitudinally extending along a first direction; And An adjustment block (25), detachably fitted to the spray arm main body (21); Wherein, one side of the spray arm main body (21) is provided with a first adjustment portion (232) and a second adjustment portion (234), the first adjustment portion (232) and the second adjustment portion (234) are spaced apart in a second direction, an adjustment groove (236) is formed between the first adjustment portion (232) and the second adjustment portion (234), the adjustment groove (236) extends along the first direction, a plurality of first positioning grooves (2321) are formed on one side of the first adjustment portion (232) forming the adjustment groove (236), the plurality of first positioning grooves (2321) are arranged in sequence along the first direction, a plurality of second positioning grooves (2341) are formed on one side of the second adjustment portion (234) forming the adjustment groove (236), the plurality of second positioning grooves (2341) are arranged in sequence along the first direction, the adjustment block (25) is detachably limited in the adjustment groove (236), and opposite sides of the adjustment block (25) in the second direction are respectively selectively limited in one of the first positioning grooves (2321) and one of the second positioning grooves (2341) to be fitted to different positions of the spray arm main body (21) in the first direction, so as to adjust the position of the center of gravity of the spray arm main body (21) in the first direction; The second direction is perpendicular to the first direction.

2. The spray arm according to claim 1, wherein, The adjustment block (25) includes an adjustment block main body (252), a first clamping arm (254) and a second clamping arm (256), the first clamping arm (254) and the second clamping arm (256) are both connected to one end of the adjustment block main body (252), the adjustment block main body (252) is movably limited in the adjustment groove (236) along the first direction, and the first clamping arm (254) and the second clamping arm (256) are spaced apart in the second direction; The first clamping arm (254) and the second clamping arm (256) can approach or move away from each other in the second direction, so that the first clamping arm (254) disengages from or engages with the first positioning groove (2321), and the second clamping arm (256) disengages from or engages with the second positioning groove (2341).

3. The spray arm according to claim 2, wherein The adjustment groove (236) includes a first limiting space (2361) and a second limiting space (2363) that communicate with each other, the second limiting space (2363) is located on a side of the first limiting space (2361) facing the spray arm main body (21), and the size of the second limiting space (2363) in the second direction is larger than the size of the first limiting space (2361) in the second direction; The adjusting block body (252) includes a first limiting portion (2521) and a second limiting portion (2523) that are connected to each other. The dimension of the second limiting portion (2523) in the second direction is greater than the dimension of the first limiting portion (2521) in the second direction. The second limiting portion (2523) is limited within the second limiting space (2363), and the first limiting portion (2521) is limited within the first limiting space (2361).

4. A spray arm assembly, characterized in that, Comprising a spray arm as described in any one of claims 1 to 3, the spray arm body (21) has a water flow channel and a spray arm water inlet (212) communicating with the water flow channel. The spray arm assembly further includes a connecting pipe (40) having a pipe water outlet (41), and the pipe water outlet (41) of the connecting pipe (40) is detachably fitted to the spray arm water inlet (212).

5. The spray arm assembly according to claim 4, characterized in that, The spray arm includes a water inlet connecting portion (214) that circumferentially surrounds the spray arm water inlet (212). The connecting pipe (40) is provided with a water outlet connecting portion (43) that circumferentially surrounds the pipe water outlet (41). The water outlet connecting portion (43) can undergo recoverable deformation in the radial direction of the pipe water outlet (41) under the action of an external force to sleeved on the water inlet connecting portion (214).

6. The spray arm assembly according to claim 5, wherein, On the side of the water inlet connecting portion (214) away from the water inlet, there is a protruding clamping edge (2141). The water outlet connecting portion (43) is provided with a plurality of connecting buckles (432) arranged at intervals in the circumferential direction. Each connecting buckle (432) can abut against the clamping edge (2141) in the central axis direction of the water inlet.

7. The spray arm assembly according to claim 6, wherein The connecting pipe (40) includes a flow guide nozzle (45) that circumferentially surrounds the pipe water outlet (41), and the flow guide nozzle (45) extends into the water inlet.

8. A dishwasher, characterized in that, Comprising a spray arm assembly as described in any one of claims 4 to 7.

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