Dish-washing machine spraying arm and dish-washing machine
By designing a rotatable spray arm structure, the problem of limited rinsing range of dishwasher spray arms is solved, resulting in a larger and more uniform cleaning area, thus improving cleaning effect and efficiency.
Patent Information
- Application Number
- CN202520101980.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing dishwasher spray arms have a limited rinsing range, which can easily create cleaning dead spots, resulting in poor cleaning performance.
Design a spray arm structure including a first spray arm and a second spray arm. The second spray arm can rotate relative to the first spray arm through a connecting mechanism. Combined with the setting of multiple spray parts and spray holes, the uniform distribution of water source and rotational cleaning can be achieved.
It improves cleaning effect and efficiency, reduces cleaning dead spots, and enhances the dishwasher's cleaning ability and user experience.
Smart Images
Figure CN223731353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a dishwasher spray arm and a dishwasher. Background Technology
[0002] As people's living standards improve, dishwashers are used by most families. They not only replace manual washing of dishes, freeing up people's labor, but also make the dishes cleaner and more hygienic than those cleaned by hand.
[0003] However, most dishwashers at present use a large single-arm structure to clean dishes, but the rinsing range of a large single arm is limited, which can easily create cleaning dead spots and result in poor cleaning effect.
[0004] Therefore, there is an urgent need to provide a dishwasher spray arm and a dishwasher to solve the problems existing in the prior art to a certain extent. Utility Model Content
[0005] The purpose of this utility model is to provide a dishwasher spray arm and a dishwasher, so as to solve to a certain extent the problem that the dishwasher spray arm has a limited rinsing range, is prone to creating cleaning dead corners, and results in poor cleaning effect.
[0006] This utility model provides a dishwasher spray arm, including a first spray arm, a connecting mechanism, and a second spray arm; the first spray arm has a plurality of spray sections, one of which has a water outlet; the second spray arm has a first cavity and a first water inlet communicating with the first cavity; the connecting mechanism includes a first connecting member and a second connecting member, the first connecting member being connected to the water outlet and to the first spray arm, one end of the second connecting member being connected to the water outlet, and the first connecting member and the second connecting member being rotatably connected, so that the second spray arm can rotate relative to the first spray arm.
[0007] The first spray arm has a first mating part corresponding to the water outlet, and the first connecting member has a second mating part corresponding to the first mating part. The first mating part and the second mating part cooperate to detachably connect the first connecting member and the first spray arm. The second spray arm has a third mating part corresponding to the first water inlet, and the second connecting member has a fourth mating part corresponding to the third mating part. The third mating part and the fourth mating part cooperate to detachably connect the second connecting member and the second spray arm. The second connecting member is sleeved on the outside of the first connecting member and can rotate relative to the first connecting member.
[0008] Specifically, the dishwasher spray arm provided by this utility model further includes a lubricating pad, the first connecting member has a flanged portion formed at one end away from the first spray arm, the second connecting member has an extension portion formed at one end away from the second spray arm, and the lubricating pad is disposed between the extension portion and the flanged portion.
[0009] The first spray arm includes a first spray arm shell and a second spray arm shell. The first spray arm shell and the second spray arm shell are connected to each other to form a second cavity. The first spray arm shell has a second water inlet that communicates with the second cavity. The second spray arm shell has a plurality of first spray holes and the water outlet. The first spray arm shell has an expansion portion at the position corresponding to the water outlet.
[0010] Specifically, a recessed platform is formed on the second spray arm housing corresponding to the position of the water outlet. The first connecting member includes a connecting section and a limiting section. The second mating part is formed on the outer wall of the connecting section. A first limiting protrusion is formed on the recessed platform. An abutting part is formed on the limiting section corresponding to the position of the limiting protrusion. When the second mating part and the first mating part are engaged in place, the abutting part abuts against the first limiting protrusion.
[0011] Furthermore, a second limiting protrusion is formed on the limiting segment, the second limiting protrusion is disposed opposite to the abutting portion, and a limiting groove is formed on the countersunk portion at the position opposite to the first limiting protrusion. When the second mating portion and the first mating portion are engaged in place, the second limiting protrusion can be embedded in the limiting groove.
[0012] Furthermore, the first connecting member is cylindrical, and multiple locking ribs are evenly distributed on the circumferential direction of the inner wall of the first connecting member, and the multiple locking ribs extend along the axial direction of the first connecting member.
[0013] The second spray arm includes a third spray arm shell and a fourth spray arm shell, which are connected to each other to form the first cavity. The first water inlet of the second spray arm is formed on the third spray arm shell, and a plurality of second spray holes are formed on the fourth spray arm shell.
[0014] Specifically, the third spray arm housing has a protrusion at the position corresponding to the first water inlet, the inner wall of the protrusion forms the third mating part, the protrusion has a third limiting protrusion, and the second connecting member has a snap-fit part. When the third mating part and the fourth mating part are in place, the third limiting protrusion snaps into the snap-fit part.
[0015] Compared with the prior art, the dishwasher spray arm provided by this utility model has the following advantages:
[0016] The dishwasher spray arm provided by this utility model includes a first spray arm, a connecting mechanism, and a second spray arm. The first spray arm has multiple spray sections, one of which has a water outlet. The second spray arm has a first cavity and a first water inlet communicating with the first cavity. The connecting mechanism includes a first connecting member and a second connecting member. The first connecting member is connected to the water outlet and to the first spray arm. One end of the second connecting member is connected to the water outlet. The first connecting member and the second connecting member are rotatably connected, so that the second spray arm can rotate relative to the first spray arm.
[0017] Analysis shows that the multiple spray sections formed by the first spray arm ensure the cleaning capacity of the main cleaning arm. By forming an outlet on one of the first spray sections and a first inlet on the second spray arm, and connecting the first connecting member to the outlet of the first spray arm and the second connecting member to the first inlet of the second spray arm, and rotatably connecting the first and second connecting members, water can pass through the outlet of the first spray arm, through the connecting mechanism, reach the first inlet, and enter the first cavity of the second spray arm.
[0018] Understandably, to ensure the spray arms can effectively clean the tableware, both the first and second spray arms must have spray holes. Therefore, water entering the first cavity will be sprayed out through these holes. Since the second spray arm can rotate relative to the first spray arm, and the first spray arm can also rotate during cleaning, the rotation of the first spray arm and the second spray arm's rotation, combined with their own rotation, can eliminate, to some extent, the cleaning blind spots that would occur with only the first spray arm. This improves both the cleaning effect and efficiency.
[0019] In addition, this utility model also provides a dishwasher, including the dishwasher spray arm described above.
[0020] The dishwasher using the spray arm provided in this application has a larger and more uniform cleaning area, which can reduce the cleaning dead corners inside the dishwasher to a certain extent, thereby improving the cleaning ability and cleaning efficiency of the dishwasher and improving the user experience. Attached Figure Description
[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 A schematic diagram of the overall structure of the dishwasher spray arm provided in an embodiment of this utility model;
[0023] Figure 2 An exploded view of the dishwasher spray arm provided in an embodiment of this utility model;
[0024] Figure 3 A partial cross-sectional view of the dishwasher spray arm provided in an embodiment of this utility model;
[0025] Figure 4 A partial schematic diagram from a first perspective of the first spray arm and the first connecting member in the dishwasher spray arm provided in an embodiment of the present utility model;
[0026] Figure 5 A partial schematic diagram from a second perspective of the first spray arm and the first connecting member in the dishwasher spray arm provided in an embodiment of this utility model;
[0027] Figure 6 An exploded view of the third spray arm shell and the second connecting member in the dishwasher spray arm provided in this embodiment of the utility model.
[0028] In the diagram: 1-First spray arm; 101-First spray arm housing; 1011-Second water inlet; 1012-Expansion section; 102-Second spray arm housing; 1021-Water outlet; 1022-First spray hole; 1023-Sinking platform; 1024-First limiting protrusion; 1025-Limiting groove; 2-Second spray arm; 201-Third spray arm housing; 2011-First water inlet; 2012-Protrusion; 2013-Third limiting... 1. Protrusion; 202-Fourth spray arm housing; 2021-Second spray hole; 3-First connecting member; 301-Connecting section; 3011-Second mating part; 302-Limiting section; 3021-Abutting part; 3022-Second limiting protrusion; 3023-Posing rib; 303-Flanged part; 4-Second connecting member; 401-Extension part; 402-Fourth mating part; 403-Snap-fit part; 5-Lubricating pad; 6-Spray arm fixing seat. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0030] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0031] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0034] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.
[0035] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0036] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0037] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0038] like Figure 1 Combination Figure 2 As shown, this utility model provides a dishwasher spray arm, including a first spray arm 1, a connecting mechanism, and a second spray arm 2. The first spray arm 1 has multiple spray sections, one of which has a water outlet 1021. The second spray arm 2 has a first cavity and a first water inlet 2011 communicating with the first cavity. The connecting mechanism includes a first connecting member 3 and a second connecting member 4. The first connecting member 3 is connected to the water outlet 1021 and to the first spray arm 1. One end of the second connecting member 4 is connected to the water outlet 1021. The first connecting member 3 and the second connecting member 4 are rotatably connected, so that the second spray arm 2 can rotate relative to the first spray arm 1.
[0039] Compared with the prior art, the dishwasher spray arm provided by this utility model has the following advantages:
[0040] The dishwasher spray arm provided by this utility model includes a first spray arm 1, a connecting mechanism, and a second spray arm 2. The first spray arm 1 has multiple spray sections, one of which has a water outlet 1021. The second spray arm 2 has a first cavity and a first water inlet 2011 communicating with the first cavity. The connecting mechanism includes a first connecting member 3 and a second connecting member 4. The first connecting member 3 is connected to the water outlet 1021 and to the first spray arm 1. One end of the second connecting member 4 is connected to the water outlet 1021. The first connecting member 3 and the second connecting member 4 are rotatably connected, so that the second spray arm 2 can rotate relative to the first spray arm 1.
[0041] Analysis shows that the multiple spray sections formed by the first spray arm 1 can ensure the cleaning capacity of the main cleaning arm. By forming an outlet 1021 on one of the first spray sections and a first inlet 2011 on the second spray arm 2, and by connecting the first connecting member 3 to the outlet 1021 of the first spray arm 1 and the second connecting member 4 to the first inlet 2011 of the second spray arm 2, and by rotatably connecting the first connecting member 3 and the second connecting member 4, water can pass through the outlet 1021 of the first spray arm 1, pass through the connecting mechanism to reach the first inlet 2011, and enter the first cavity of the second spray arm 2.
[0042] Understandably, to ensure the spray arms can effectively clean the tableware, both the first spray arm 1 and the second spray arm 2 must have spray holes. Therefore, water entering the first cavity will be sprayed out through these holes. Since the second spray arm 2 can rotate relative to the first spray arm 1, and the first spray arm 1 can also rotate during cleaning, the rotation of the first spray arm 1 and the second spray arm 2, along with the rotation of the first spray arm 1, can eliminate, to some extent, the cleaning dead zones that would occur if only the first spray arm 1 were used. This improves both the cleaning effect and the cleaning efficiency.
[0043] Optionally, such as Figure 2 Combination Figure 3 As shown, in this application, the first spray arm 1 has a first mating part formed at the position corresponding to the water outlet 1021, and the first connecting member 3 has a second mating part 3011 formed at the position corresponding to the first mating part. The first mating part and the second mating part 3011 cooperate to make the first connecting member 3 and the first spray arm 1 detachably connected. The second spray arm 2 has a third mating part formed at the position corresponding to the first water inlet 2011, and the second connecting member 4 has a fourth mating part 402 formed at the position corresponding to the third mating part. The third mating part and the fourth mating part 402 cooperate to make the second connecting member 4 and the second spray arm 2 detachably connected. The second connecting member 4 is sleeved outside the first connecting member 3 and can rotate relative to the first connecting member 3.
[0044] The first mating part, the second mating part 3011, the third mating part, and the fourth mating part 402 in this application can adopt a snap-fit and slot-fit connection method to realize the detachable connection between the first connecting member 3 and the first spray arm 1, as well as the second connecting member 4 and the second spray arm 2. However, preferably, the first mating part, the second mating part 3011, the third mating part, and the fourth mating part 402 in this application are all threaded structures, so that the detachable connection between the first connecting member 3 and the first spray arm 1, and the detachable connection between the second connecting member 4 and the second spray arm 2 can be realized through threaded engagement, and the stability after connection can be guaranteed to a certain extent.
[0045] Accordingly, the first connecting member 3 and the second connecting member 4 in this application adopt a nested connection method, so that the second connecting member 4 can rotate relative to the first connecting member 3, thereby enabling the second spray arm 2 to complete its own rotation while following the first spray arm 1 to revolve, increasing the spray area and uniformity, and reducing cleaning dead corners.
[0046] The nested connection structure has a smaller axial dimension, which can avoid interference and collision with other internal structures of the dishwasher caused by adding a second spray arm 2 to a certain extent.
[0047] Optionally, such as Figure 2 Combination Figure 3 As shown, the dishwasher spray arm provided by this utility model also includes a lubricating pad 5, a first connecting member 3 at one end away from the first spray arm 1 and a flanged portion 303 formed along the circumference of the first connecting member 3, a second connecting member 4 at one end away from the second spray arm 2 and an extension portion 401 formed along the circumference of the second connecting member 4, and the lubricating pad 5 is disposed between the extension portion 401 and the flanged portion 303.
[0048] By forming a flanged portion 303 in the first connecting member 3 and an extension portion 401 in the second connecting member 4, a limiting space can be formed through the flanged portion 303 and the extension portion 401, allowing the lubricating pad 5 to be stably installed. At the same time, the formed flanged portion 303 and extension portion 401 can increase the contact area between the first connecting member 3 and the second connecting member 4 and the lubricating pad 5, thereby reducing the rotational friction between them to a certain extent and improving the smoothness of rotation.
[0049] Optionally, such as Figure 2As shown, the first spray arm 1 in this application includes a first spray arm shell 101 and a second spray arm shell 102. The first spray arm shell 101 and the second spray arm shell 102 are connected to each other to form a second cavity. The first spray arm shell 101 has a second water inlet 1011 that communicates with the second cavity. The second spray arm shell 102 has a plurality of first spray holes 1022 and a water outlet 1021. The first spray arm shell 101 has an expansion portion 1012 at the position corresponding to the water outlet 1021.
[0050] The second water inlet 1011, which communicates with the second cavity, forms on the first spray arm housing 101, providing a stable water supply to the first spray arm 1. Correspondingly, the multiple first spray holes 1022 formed on the second spray arm housing 102 allow water to be sprayed out, thus cleaning the tableware. The formed water outlet 1021 connects the first connecting member 3 to the first spray arm 1.
[0051] It should be noted that the expansion section 1012 formed by the first spray arm housing 101 at the position corresponding to the water outlet 1021 can correspondingly expand the area of the water outlet 1021, thereby reducing the pressure loss of the water entering the second spray arm 2 to a certain extent.
[0052] It should be further noted that this application also includes a spray arm mounting base 6, which enables a stable connection between the first spray arm 1 and the water supply circuit and the dishwasher spray arm connection end, ensuring water supply.
[0053] Optionally, such as Figure 4 As shown, a recessed portion 1023 is formed on the second spray arm housing 102 corresponding to the water outlet 1021. The first connecting member 3 includes a connecting section 301 and a limiting section 302. A second mating portion 3011 is formed on the outer wall of the connecting section 301. A first limiting protrusion 1024 is formed on the recessed portion 1023. An abutting portion 3021 is formed on the limiting section 302 corresponding to the limiting protrusion. When the second mating portion 3011 and the first mating portion are engaged in place, the abutting portion 3021 abuts against the first limiting protrusion 1024.
[0054] By designing the recessed platform 1023, the space of the second cavity formed by the first spray arm 1 can be effectively utilized, thereby avoiding the problem of interference caused by excessive thickness of the overall structure after connection.
[0055] This application forms a first limiting protrusion 1024 in the recessed platform portion 1023 and makes the limiting section 302 of the first connecting member 3 form an abutment portion 3021. In addition, the first mating portion and the second mating portion 3011 in this application preferably adopt a threaded mating structure. Therefore, when the second mating portion 3011 rotates to the position relative to the first mating portion, the abutment portion 3021 can abut against the first limiting protrusion 1024. Thus, through the abutment force and friction force formed between the first limiting protrusion 1024 and the abutment portion 3021, the problem of loosening of the connection between the first connecting member 3 and the first spray arm 1 caused by the vibration generated when the second spray arm 2 rotates can be avoided to a certain extent.
[0056] More preferably, such as Figure 4 Combination Figure 5 As shown, a second limiting protrusion 3022 is formed on the limiting segment 302 in this application. The second limiting protrusion 3022 is disposed opposite to the abutting part 3021, and a limiting groove 1025 is formed on the recessed part 1023 at the position opposite to the first limiting protrusion 1024. When the second mating part 3011 and the first mating part are engaged in place, the second limiting protrusion 3022 can be embedded in the limiting groove 1025.
[0057] Since the second limiting protrusion 3022 and the abutting part 3021 are arranged opposite to each other in this application, when the second mating part 3011 is screwed into place relative to the first mating part, the abutting part 3021 abuts against the first limiting protrusion 1024. At the same time, the second limiting protrusion 3022 is embedded in the limiting groove 1025. Thus, through the cooperation of the first limiting protrusion 1024 and the abutting part 3021, as well as the second limiting protrusion 3022 and the limiting groove 1025, the stable connection between the first connecting member 3 and the first spray arm 1 can be further guaranteed, and the stability of the overall structure during operation can be improved.
[0058] Optionally, such as Figure 4 As shown, the first connecting member 3 in this application is cylindrical, and multiple locking ribs 3023 are evenly distributed in the circumferential direction on the inner wall of the first connecting member 3. The multiple locking ribs 3023 extend along the axial direction of the first connecting member 3.
[0059] The formed locking rib 3023 facilitates the installation and disassembly of the first connecting component 3 by installers using tools.
[0060] Optionally, such as Figure 6 As shown, the second spray arm 2 in this application includes a third spray arm shell 201 and a fourth spray arm shell 202. The third spray arm shell 201 and the fourth spray arm shell 202 are connected to each other to form a first cavity. The first water inlet 2011 of the second spray arm 2 is formed on the third spray arm shell 201, and a plurality of second spray holes 2021 are formed on the fourth spray arm shell 202.
[0061] The first cavity formed by the docking of the third spray arm housing 201 and the fourth spray arm housing 202 enables the water source entering the second spray arm 2 to be evenly distributed to various positions, thereby achieving uniform spraying through the second spray hole 2021.
[0062] Optionally, such as Figure 6 As shown, the third spray arm housing 201 in this application has a boss 2012 at the position corresponding to the first water inlet 2011. The inner wall of the boss 2012 forms a third mating part. A third limiting protrusion 2013 is formed on the boss 2012. A snap-fit part 403 is formed on the second connecting member 4. When the third mating part and the fourth mating part 402 are in place, the third limiting protrusion 2013 snaps into the snap-fit part 403.
[0063] With the third limiting protrusion 2013 formed on the boss 2012 and the corresponding snap-fit portion 403 formed on the second connecting member 4, when the fourth mating portion 402 is screwed into place relative to the third mating portion, the third limiting protrusion 2013 can be snapped into the snap-fit portion 403, thereby stabilizing the relative position between the second connecting member 4 and the second spray arm 2 and ensuring the stable operation of the overall structure during cleaning.
[0064] In addition, this utility model also provides a dishwasher, including the dishwasher spray arm described above.
[0065] The dishwasher using the spray arm provided in this application has a larger and more uniform cleaning area, which can reduce the cleaning dead corners inside the dishwasher to a certain extent, thereby improving the cleaning ability and cleaning efficiency of the dishwasher and improving the user experience.
[0066] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dishwasher spray arm, characterized in that, The first spray arm, a connecting mechanism and the second spray arm are included. The first spray arm is formed with a plurality of spray portions, one of which is formed with a water outlet, and the second spray arm is formed with a first cavity and a first water inlet communicating with the first cavity. The connecting mechanism includes a first connecting member and a second connecting member, the first connecting member is connected with the water outlet and the first spray arm, and one end of the second connecting member is connected with the water outlet.
2. The dishwasher spray arm of claim 1, wherein, The first connecting member is rotatably connected with the second connecting member, so that the second spray arm can rotate relative to the first spray arm. The first spray arm is formed with a first matching portion corresponding to the position of the water outlet, the first connecting member is formed with a second matching portion corresponding to the position of the first matching portion, the first matching portion and the second matching portion are matched, so that the first connecting member and the first spray arm are detachably connected. The second spray arm is formed with a third matching portion corresponding to the position of the first water inlet, and the second connecting member is formed with a fourth matching portion corresponding to the position of the third matching portion, the third matching portion and the fourth matching portion are matched, so that the second connecting member and the second spray arm are detachably connected.
3. The dishwasher spray arm of claim 1, wherein, The second connecting member is sleeved on the first connecting member and can rotate relative to the first connecting member.
4. The dishwasher spray arm of claim 2, wherein, A lubricating pad is further included, one end of the first connecting member away from the first spray arm is formed with a flange portion along the circumference of the first connecting member, one end of the second connecting member away from the second spray arm is formed with an extension portion along the circumference of the second connecting member, and the lubricating pad is arranged between the extension portion and the flange portion.
5. The dishwasher spray arm of claim 4, wherein, The first spray arm includes a first spray arm shell and a second spray arm shell, the first spray arm shell and the second spray arm shell are connected to form a second cavity, the first spray arm shell is formed with a second water inlet communicating with the second cavity, the second spray arm shell is formed with a plurality of first spray holes and the water outlet, and the first spray arm shell is formed with an expansion portion corresponding to the position of the water outlet.
6. The dishwasher spray arm of claim 5, wherein, The second spray arm shell is formed with a sunken portion corresponding to the position of the water outlet, the first connecting member includes a connecting section and a limiting section, the second matching portion is formed on the outer wall of the connecting section, the sunken portion is formed with a first limiting protrusion, and the limiting section is formed with an abutting portion corresponding to the position of the first limiting protrusion.
7. The dishwasher spray arm of claim 1, wherein, When the second matching portion and the first matching portion are matched in place, the abutting portion abuts against the first limiting protrusion. The limiting section is formed with a second limiting protrusion, the second limiting protrusion is arranged opposite to the abutting portion, and the sunken portion is formed with a limiting groove opposite to the first limiting protrusion. The first connecting member is in a cylindrical shape, and a plurality of clamping ribs are uniformly distributed on the inner wall of the first connecting member in the circumferential direction.
8. The dishwasher spray arm of claim 2, wherein, The second spray arm comprises a third spray arm shell and a fourth spray arm shell, the third spray arm shell and the fourth spray arm shell are opposite to each other to form the first cavity, a first water inlet of the second spray arm is formed on the third spray arm shell, and a plurality of second spray holes are formed on the fourth spray arm shell.
9. The dishwasher spray arm of claim 8, wherein, The third spray arm shell is formed with a boss portion corresponding to the position of the first water inlet, an inner wall of the boss portion forms the third matching portion, a third limiting protrusion is formed on the boss portion, and a clamping portion is formed on the second connecting member, and after the third matching portion and the fourth matching portion are matched in place, the third limiting protrusion is clamped into the clamping portion.
10. A dishwasher, characterized in that A dishwasher spray arm comprising any one of the preceding claims 1-9.