Spraying arm assembly and dish washing machine

Abstract

The utility model discloses a gushing arm assembly which comprises a water distribution piece, a spraying arm and a spraying arm, the water distribution piece is provided with a water storage cavity, the side wall of the water distribution piece is provided with a water outlet hole and a water inlet hole set which are communicated with the water storage cavity, the water inlet hole set comprises at least two water inlet holes which are arranged at intervals in the vertical direction, and all the water inlet holes are communicated with the water storage cavity; the spraying arm is connected to the water distribution piece and provided with a water passing channel communicated with the water outlet hole, and the spraying arm is further provided with at least two water spraying holes communicated with the water passing channel; and sealing pieces in one-to-one correspondence with the water inlet holes are arranged in the water storage cavity, the sealing pieces are rotationally arranged on the inner wall of the water storage cavity and block the corresponding water inlet holes, and the sealing pieces can rotate relative to the water distribution piece under the action of external force and open the corresponding water inlet holes. Therefore, the gushing arm assembly is simple in structure, and the production cost of the gushing arm assembly is greatly reduced. In addition, the utility model further discloses the dish washing machine with the spraying arm assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a spray arm assembly and a dishwasher. Background Art

[0002] Existing dishwashers typically feature height adjustment mechanisms on the wash basket. Adjusting the height of the wash basket allows users to load dishes of varying sizes and allocate space appropriately based on dishware size. However, when adjusting the height of the wash basket, the spray arm assembly mounted on the basket also rises and falls with the basket. To ensure proper water flow to the spray arm during this process, two water inlet holes are typically provided at the spray arm's inlet end, one in the vertical direction. When the spray arm moves to align one of the inlet holes with the internal water pipe and connects, the other inlet hole must be manually blocked, a highly complex operation. Alternatively, regulating valves can be installed at both inlet holes to control their opening and closing. However, the provision of regulating valves not only complicates the structure of the spray arm assembly but also significantly increases its production cost. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a spray arm assembly that facilitates normal water intake during the lifting process, has a simple structure, and is low in production cost.

[0004] The utility model also provides a dishwasher equipped with the spray arm assembly.

[0005] According to the embodiment of the present utility model, the spray arm assembly includes: a water distribution member, which has a water storage chamber, and the side wall of the water distribution member is provided with a water outlet hole and a water inlet hole group connected to the water storage chamber, the water inlet hole group includes at least two water inlet holes arranged at intervals in the up and down directions, and all the water inlet holes are connected to the water storage chamber; a spray arm, which is connected to the water distribution member and has a water flow channel connected to the water outlet hole, and the spray arm is also provided with at least two water spray holes connected to the water flow channel; wherein, a sealing member corresponding to each of the water inlet holes is provided in the water storage chamber, the sealing member is rotatably provided on the inner wall of the water storage chamber and blocks the corresponding water inlet hole, and the sealing member can rotate relative to the water distribution member under the action of external force and open the corresponding water inlet hole.

[0006] The spray arm assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0007] By adopting the spray arm assembly of the embodiment of the present invention, a seal is provided at each water inlet. The seal is rotatably mounted on the inner wall of the water storage chamber and blocks the corresponding water inlet hole. Thus, when the spray arm assembly is mounted on the bowl basket and moves up and down with the bowl basket to a set height, one of the water inlets aligns with and connects to the inner water pipe of the dishwasher. At this time, water from the inner water pipe can flow toward the water inlet hole and push the seal at the water inlet hole to rotate into the water storage chamber to open the water inlet hole. At this time, the water from the inner water pipe can flow through the corresponding water inlet hole into the water storage chamber and then flow into the water passage of the spray arm, and finally be sprayed out from the water spray hole, while the other water inlet holes are in a closed state. Therefore, the spray arm assembly of the embodiment of the present invention only needs to add a seal at each water inlet hole to facilitate normal water inlet during the lifting process. Not only is the structure simple, but it also greatly reduces the production cost of the spray arm assembly.

[0008] According to some embodiments of the present invention, the sealing member is a flexible member, the outer surface of the flexible member is in contact with the periphery of the corresponding water inlet hole, the flexible member has a connecting portion fixedly connected to the inner wall of the water storage chamber, and the flexible member can be deformed under the action of external force and rotate around the connecting portion to open the corresponding water inlet hole.

[0009] According to some embodiments of the present invention, the flexible member is a rubber diaphragm.

[0010] According to some embodiments of the present invention, an elastic member is provided between the sealing member and the inner wall of the water storage chamber, and the elastic member can pull the sealing member to rotate relative to the water distribution member and block the corresponding water inlet hole.

[0011] According to some embodiments of the present invention, there are two water storage chambers, the two water storage chambers are independent of each other, the number of the water inlet hole groups is two groups and they are connected to the two water storage chambers in a one-to-one correspondence; the number of the spray arms is two, the water passages of the two spray arms are connected to the water outlet holes of the two water storage chambers in a one-to-one correspondence.

[0012] According to some embodiments of the present invention, the cross-sectional area of ​​the water inlet holes of one group of the water inlet hole groups is larger than the cross-sectional area of ​​the water inlet holes of another group of the water inlet hole groups.

[0013] According to some embodiments of the present utility model, the water distribution component includes a bottom plate and a shell that are clamped together, the water storage chamber is formed by the bottom plate and the shell, all the water inlet holes are opened in the bottom plate, the water outlet holes are opened in the shell, and a sealing structure is sandwiched between the bottom plate and the shell.

[0014] According to some embodiments of the present invention, the outer side wall of the bottom plate is provided with grid-shaped reinforcing ribs; the outer side wall of the shell is provided with a snap-fit ​​structure for connecting with the bowl basket.

[0015] According to some embodiments of the present invention, the spray arm has a water inlet connected to the water flow channel, a connecting piece is provided between the spray arm and the water diversion piece, and the connecting piece is provided with a connecting channel connecting the water outlet and the water inlet; in the length direction of the spray arm, at least one water spray hole is provided on both opposite sides of the water inlet, and the water inlet is connected to the connecting channel; one end of the connecting piece away from the water diversion piece is inserted into the water inlet and is rotatably connected to the spray arm, and the inner wall of the water flow channel is provided with a diversion portion, the diversion portion protrudes from the inner wall of the water flow channel and extends to the inside of the connecting channel, and the diversion portion is arranged at intervals from the inner wall of the connecting channel.

[0016] A dishwasher according to an embodiment of the present invention is provided with the spray arm assembly of any one of the above embodiments.

[0017] The dishwasher according to the embodiment of the present invention has at least the following beneficial effects:

[0018] The dishwasher of the embodiment of the present invention is provided with a spray arm assembly of any of the above embodiments. The spray arm assembly only needs to add a seal at each water inlet hole to facilitate normal water inlet during the lifting process. Not only is the structure simple, which facilitates the production of the dishwasher, but it also greatly reduces the production cost of the spray arm assembly, thereby greatly reducing the production cost of the dishwasher.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 A schematic diagram of a spray arm assembly according to an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a water distribution member and a connecting member according to an embodiment of the present utility model;

[0023] Figure 3 Schematic diagram of the base plate of an embodiment of the present invention.

[0024] Reference numerals:

[0025] Water distribution member 100, bottom plate 101, housing 102, water storage chamber 110, water inlet hole group 120, water inlet hole 121, water outlet hole 130, sealing member 140, reinforcing rib 150, clamping structure 160, sealing structure 170;

[0026] Spray arm 200, water spray hole 210;

[0027] Connecting piece 300 and connecting channel 310 . DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0030] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Reference Figures 1 to 3One embodiment of the present invention provides a spray arm assembly comprising a water distribution member 100 and a spray arm 200. The water distribution member 100 has a water storage chamber 110. The sidewall of the water distribution member 100 is provided with a water outlet 130 and a water inlet hole group 120, both communicating with the water storage chamber 110. The water inlet hole group 120 includes three water inlet holes 121 spaced apart in the vertical direction, all of which are in communication with the water storage chamber 110. The spray arm 200 is connected to the water distribution member 100 and has a water passage communicating with the water outlet 130. The spray arm 200 also has at least two water spray holes 210 communicating with the water passage. Among them, a sealing member 140 corresponding to each water inlet hole 121 is provided in the water storage chamber 110. The sealing member 140 is rotatably provided on the inner wall of the water storage chamber 110 and blocks the corresponding water inlet hole 121. The sealing member 140 can rotate relative to the water distribution member 100 under the action of external force and open the corresponding water inlet hole 121.

[0033] By adopting the spray arm assembly of the embodiment of the present invention, a sealing member 140 is correspondingly provided at each water inlet. The sealing member 140 is rotatably installed on the inner wall of the water storage chamber 110 and blocks the corresponding water inlet hole 121. Therefore, when the spray arm assembly is installed on the bowl basket and moves up and down with the bowl basket to a set height, one of the water inlet holes 121 is aligned with and connected to the inner water pipe of the dishwasher. At this time, the water in the inner water pipe can flow toward the water inlet hole 121 and push the sealing member 140 at the water inlet hole 121 to rotate toward the inside of the water storage chamber 110 to open the water inlet hole 121. At this time, the water in the inner water pipe can flow into the water storage chamber 110 through the corresponding water inlet hole 121 and then flow into the water passage of the spray arm 200, and finally be sprayed out from the water spray hole 210, while the other water inlet holes 121 are in a closed state. It can be seen that compared with manually controlling the opening and closing of each water inlet hole 121, the spray arm assembly of the embodiment of the present invention can conveniently automatically control the opening and closing of each water inlet hole 121 during the lifting process by rotating and installing the seal 140 at each water inlet hole 121, thereby realizing normal water inlet of the spray arm assembly, and the operation is simpler and more convenient. Compared with using a regulating valve to control the opening and closing of each water inlet hole 121, the embodiment of the present invention only needs to add a seal 140 at each water inlet hole 121, which has a simple structure and greatly reduces the production cost of the spray arm assembly.

[0034] It can be understood that when one of the water inlet holes 121 is opened by the impact of the water flow in the inner water pipe, the water flowing into the water storage chamber 110 can also put pressure on the seals 140 at other water inlet holes 121, thereby driving the seals 140 at other water inlet holes 121 to better seal the corresponding water inlet holes 121, which is beneficial to improve the sealing performance of other water inlet holes 121, and thus can reduce the risk of water leakage in other water inlet holes 121 when one of the water inlet holes 121 is opened.

[0035] It is understandable that the water inlet hole group 120 includes three water inlet holes 121 spaced apart in the vertical direction. Figure 3 As an exemplary illustration, the number of water inlet holes 121 included in the water inlet hole group 120 can be not only three, but also two, four, five or more. The present invention does not provide specific instructions for this. It is only necessary that the water inlet holes 121 of each water inlet hole group 120 are arranged at intervals in the up and down directions.

[0036] Reference Figures 1 to 3 In some embodiments, the sealing member 140 is a flexible member, the outer surface of the flexible member is in contact with the periphery of the corresponding water inlet hole 121, and the flexible member has a connecting portion fixedly connected to the inner wall of the water storage chamber 110. The flexible member can be deformed under the action of external force and rotate around the connecting portion to open the corresponding water inlet hole 121.

[0037] By adopting the above structure, when the spray arm assembly is mounted on the bowl basket and moves up and down with the bowl basket to a set height, one of the water inlet holes 121 aligns with and connects to the dishwasher's internal water pipe. At this time, water from the internal water pipe can flow toward this water inlet hole 121, pushing the flexible member at this water inlet hole 121 to bend and rotate toward the inside of the water storage chamber 110, thereby opening this water inlet hole 121. At this time, the water from the internal water pipe can flow through the corresponding water inlet hole 121 into the water storage chamber 110, then flow into the water passage of the spray arm 200, and finally be sprayed out of the water spray hole 210, while the other water inlet holes 121 are in a closed state. In particular, by configuring the sealing member 140 as a flexible member, the outer surface of the flexible member can well conform to the periphery of the corresponding water inlet hole 121, thereby effectively sealing the corresponding water inlet hole 121. This helps to improve the sealing of each water inlet hole 121 and reduce the risk of water leakage from other water inlet holes 121 when one water inlet hole 121 is open.

[0038] It is understood that the connection portion of the flexible member is fixedly mounted on the inner wall of the water storage chamber 110. Specifically, the connection portion of the flexible member can be fixedly mounted on the inner wall of the water storage chamber 110 by welding. Of course, in addition to this, the flexible member can also be fixedly mounted on the inner wall of the water storage chamber 110 by fasteners, clamping, bonding, or other connection methods, and this utility model does not specifically limit this.

[0039] In some embodiments, the flexible member is a rubber diaphragm.

[0040] By adopting the above structure, the flexible part is set as a rubber diaphragm, which not only can facilitate the sealing and closing of the corresponding water inlet hole 121, but also has a simple structure. In addition, the rubber diaphragm is easy to obtain and has a low cost, which is conducive to reducing the production cost of the spray arm assembly.

[0041] It is understandable that in addition to the rubber diaphragm, the flexible part can also be a silicone part or other structure in other embodiments. The present invention does not make any specific limitations on this. It only requires that the flexible part can be deformed under the action of external force and rotate around the connecting part to open the corresponding water inlet hole 121.

[0042] Reference Figures 1 to 3 In some embodiments, an elastic member is provided between the sealing member 140 and the inner wall of the water storage chamber 110 , and the elastic member can pull the sealing member 140 to rotate relative to the water diversion member 100 and block the corresponding water inlet hole 121 .

[0043] By adopting the above structure, when the spray arm assembly is installed on the bowl basket and moves up and down with the bowl basket to a set height, one of the water inlet holes 121 is aligned with and connected to the inner water pipe of the dishwasher. At this time, the water in the inner water pipe can flow toward the water inlet hole 121 and push the sealing member 140 at the water inlet hole 121 to rotate toward the inside of the water storage chamber 110, thereby opening the water inlet hole 121. At this time, the elastic member contracts, and the water in the inner water pipe can flow through the corresponding water inlet hole 121 into the water storage chamber 110 and then flow into the water passage of the spray arm 200, and finally be sprayed out from the water spray hole 210. The sealing members 140 at the other water inlet holes 121 are tightly attached to the inner wall of the water storage chamber 110 under the action of the elastic member, so that the other water inlet holes 121 are in a closed state. It can be seen that the setting of the elastic part can fit well with the periphery of the corresponding water inlet hole 121, thereby being able to well seal and close the corresponding water inlet hole 121, which is beneficial to improving the sealing performance of each water inlet hole 121 and reducing the risk of water leakage in other water inlet holes 121 when one of the water inlet holes 121 is opened.

[0044] It is understandable that the elastic member may specifically be a compression spring, a pressure spring or other structures, and the present invention does not make any specific limitation on this.

[0045] Reference Figure 3 In some embodiments, there are two water storage chambers 110, which are independent of each other. There are two water inlet hole groups 120, which are connected to the two water storage chambers 110 in a one-to-one correspondence. There are two spray arms 200, and the water passages of the two spray arms 200 are connected to the water outlet holes 130 of the two water storage chambers 110 in a one-to-one correspondence.

[0046] By adopting the above structure, the provision of two spray arms 200 helps to expand the spray cleaning range of the spray arm assembly, thereby improving the cleaning efficiency of the dishwasher. In addition, the two water storage chambers 110 supply water to the two spray arms 200 respectively, making it easy to independently adjust the water spray volume of the two spray arms 200, thereby increasing the flexibility of the spray arm assembly.

[0047] Reference Figure 3In some embodiments, there are two water inlet hole groups 120 , wherein the cross-sectional area of ​​the water inlet holes 121 in one water inlet hole group 120 is larger than the cross-sectional area of ​​the water inlet holes 121 in the other water inlet hole group 120 .

[0048] By adopting the above structure, the cross-sectional areas of the water inlet holes 121 in the two water inlet hole groups 120 are set to be large and small, so that the two spray arms 200 form a structure in which the main spray arm and the auxiliary spray arm are used in conjunction with each other, which is not only beneficial to increasing the spraying and cleaning range of the spray arm assembly, but also beneficial to saving water resources.

[0049] It is understandable that in order to achieve that the cross-sectional area of ​​the water inlet holes 121 of one water inlet hole group 120 is larger than the cross-sectional area of ​​the water inlet holes 121 of the other water inlet hole group 120, specifically, referring to Figure 3 , the water inlet holes 121 can be set to be circular. At this time, the diameter of the water inlet holes 121 of one group of water inlet hole groups 120 is larger than the diameter of the water inlet holes 121 of the other group of water inlet hole groups 120, thereby making the cross-sectional area of ​​the water inlet holes 121 of one group of water inlet hole groups 120 larger than the cross-sectional area of ​​the water inlet holes 121 of the other group of water inlet hole groups 120. Of course, in addition to this, the shape of the water inlet holes 121 can also be rectangular, elliptical or other shapes. The present invention does not make specific limitations on this. It is only necessary that the cross-sectional area of ​​the water inlet holes 121 of one group of water inlet hole groups 120 is larger than the cross-sectional area of ​​the water inlet holes 121 of the other group of water inlet hole groups 120.

[0050] Reference Figures 1 to 3 In some embodiments, the water distribution component 100 includes a bottom plate 101 and a shell 102 that are clamped together. The water storage chamber 110 is formed by the bottom plate 101 and the shell 102. All water inlet holes 121 are opened in the bottom plate 101, and the water outlet holes 130 are opened in the shell 102. A sealing structure 170 is sandwiched between the bottom plate 101 and the shell 102.

[0051] By adopting the above structure, the water distribution member 100 is separated into the bottom plate 101 and the shell 102 that are interlocked with each other. As a result, the bottom plate 101 and the shell 102 can be processed separately, making the production and processing of the water distribution member 100 more convenient. In addition, the sealing structure 170 is sandwiched between the bottom plate 101 and the shell 102, which helps to improve the sealing performance of the water storage chamber 110 and reduce the risk of water in the water distribution member 100 leaking through the gap between the bottom plate 101 and the shell 102.

[0052] It is understandable that the sealing structure 170 may be made of rubber, silicone, etc., and the present invention does not impose any specific limitation on this.

[0053] It is understandable that, in addition to the mutual snap-fit ​​connection between the base plate 101 and the shell 102, in some embodiments, the base plate 101 and the shell 102 can also be connected by welding, screwing, etc., and the present invention does not make specific limitations on this.

[0054] It is understood that in order to improve the tightness of the connection between the bottom plate 101 and the housing 102, and thereby improve the sealing of the water storage chamber 110, the bottom plate 101 and the housing 102 are welded together after being snap-fitted together. This can reduce the risk of water in the water diversion member 100 leaking through the gap between the bottom plate 101 and the housing 102. In this structure, the bottom plate 101 and the housing 102 can be positioned by snapping together, thereby facilitating subsequent welding between the bottom plate 101 and the housing 102.

[0055] Reference Figure 3 In some embodiments, the outer side wall of the bottom plate 101 is provided with a grid-shaped reinforcement rib 150 .

[0056] By adopting the above structure, the grid-shaped reinforcement ribs 150 are helpful to strengthen the structural strength of the bottom plate 101, making the structure of the bottom plate 101 more stable.

[0057] Reference Figure 3 In some embodiments, the outer wall of the housing 102 is provided with a snap-fit ​​structure 160 for coupling with the bowl basket.

[0058] By adopting the above structure, the clamping structure 160 on the shell 102 can be clamped on the bowl basket during use, thereby facilitating the installation and fixation of the spray arm assembly, so that the spray arm assembly can be installed on the bowl basket and move up and down with the bowl basket.

[0059] It is understandable that the above-mentioned clamping structure 160 can be specifically a hook, or a buckle, a slot, etc., and the present invention does not make any specific limitation on this.

[0060] Reference Figures 1 to 3 In some embodiments, the spray arm 200 has a water inlet connected to the water flow channel. A connector 300 is provided between the spray arm 200 and the water distribution member 100. The connector 300 defines a connecting channel 310 connecting the water outlet 130 and the water inlet. Along the length of the spray arm 200, at least one water spray hole 210 is provided on opposite sides of the water inlet, and the water inlet is connected to the connecting channel 310. The end of the connector 300, away from the water distribution member 100, is inserted into the water inlet and is rotatably connected to the spray arm 200. A diverter is provided on the inner wall of the water flow channel. The diverter protrudes from the inner wall of the water flow channel and extends into the interior of the connecting channel 310. The diverter is spaced apart from the inner wall of the connecting channel 310.

[0061] By adopting the above structure, the provision of the connector 300 facilitates the installation and layout of the spray arm assembly. During use, the water diverter 100 can be installed on the bowl basket, and the connector 300 can extend to the center of the bowl basket, thereby facilitating the spray arm 200 to clean the bowls and basins in the bowl basket. In addition, by providing a diverter within the water passage of the spray arm 200, the diverter extends to the inner wall of the connecting passage 310 of the connector 300 and is spaced apart from the inner wall of the connecting passage 310. As a result, after water flows from the water storage chamber 110 to the connecting passage 310, it can be diverted towards the two ends of the water passage under the obstruction of the diverter, thereby ensuring that the water flow is evenly distributed within the water passage and sprayed out from each water spray hole 210.

[0062] It is understood that the connector 300 can be integrally formed with the water distribution member 100, thereby improving the connection stability and sealing between the connector 300 and the water distribution member 100. Of course, the connector 300 and the water distribution member 100 can also be connected by means of a snap connection, a screw connection, a welding connection, or other connection methods, which are not specifically limited in this utility model.

[0063] An embodiment of the present invention further provides a dishwasher, which is provided with the spray arm assembly of any of the above embodiments.

[0064] The dishwasher of the embodiment of the present invention is provided with a spray arm assembly of any of the above-mentioned embodiments, and a sealing member 140 is correspondingly provided at each water inlet of the spray arm assembly. The sealing member 140 is rotatably installed on the inner wall of the water storage chamber 110 and blocks the corresponding water inlet hole 121. Thus, when the spray arm assembly is installed on the bowl basket and moves up and down with the bowl basket to a set height, one of the water inlet holes 121 is aligned with and connected to the inner water pipe of the dishwasher. At this time, the water in the inner water pipe can flow toward the water inlet hole 121 and push the sealing member 140 at the water inlet hole 121 to rotate toward the inside of the water storage chamber 110 to open the water inlet hole 121. At this time, the water in the inner water pipe can flow into the water storage chamber 110 through the corresponding water inlet hole 121 and then flow into the water passage of the spray arm 200, and finally be sprayed out from the water spray hole 210, while the other water inlet holes 121 are in a closed state, thereby achieving the dishwashing function. It can be seen that during use of the dishwasher according to the embodiment of the utility model, the seal 140 of the spray arm assembly can automatically control the opening and closing of each water inlet hole 121 to achieve normal water inlet to the spray arm assembly, and the operation is simpler and more convenient. Compared with the control by the regulating valve, the setting of the seal 140 is not only simple in structure, but also greatly reduces the production cost of the dishwasher.

[0065] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Spray arm assembly, characterized in that, include: A water distribution member (100) has a water storage chamber (110), and a side wall of the water distribution member (100) is provided with a water outlet hole (130) and a water inlet hole group (120) connected to the water storage chamber (110), wherein the water inlet hole group (120) includes at least two water inlet holes (121) arranged at intervals in the vertical direction, and all the water inlet holes (121) are connected to the water storage chamber (110); A spray arm (200) is connected to the water distribution member (100) and has a water passage communicating with the water outlet hole (130). The spray arm (200) is further provided with at least two water spray holes (210) communicating with the water passage. The water storage chamber (110) is provided with a sealing member (140) corresponding to each of the water inlet holes (121). The sealing member (140) is rotatably arranged on the inner wall of the water storage chamber (110) and blocks the corresponding water inlet hole (121). The sealing member (140) can rotate relative to the water distribution member (100) under the action of an external force and open the corresponding water inlet hole (121).

2. The spray arm assembly according to claim 1, wherein: The sealing member (140) is a flexible member, the outer surface of which is in contact with the periphery of the corresponding water inlet hole (121), and the flexible member has a connecting portion fixedly connected to the inner wall of the water storage chamber (110). The flexible member can be deformed under the action of an external force and rotate around the connecting portion to open the corresponding water inlet hole (121).

3. The spray arm assembly according to claim 2, wherein: The flexible member is a rubber diaphragm.

4. The spray arm assembly according to claim 1, wherein: An elastic member is provided between the sealing member (140) and the inner wall of the water storage chamber (110), and the elastic member can pull the sealing member (140) to rotate relative to the water distribution member (100) and seal the corresponding water inlet hole (121).

5. The spray arm assembly according to claim 1, wherein: There are two water storage chambers (110), the two water storage chambers (110) are independent of each other, and there are two water inlet hole groups (120) that are in one-to-one correspondence with the two water storage chambers (110). There are two spray arms (200), and the water passages of the two spray arms (200) are in one-to-one correspondence with the water outlet holes (130) of the two water storage chambers (110) and are in communication with each other.

6. The spray arm assembly according to claim 5, characterized in that The cross-sectional area of ​​the water inlet holes (121) of one of the water inlet hole groups (120) is greater than the cross-sectional area of ​​the water inlet holes (121) of the other water inlet hole group (120).

7. The spray arm assembly according to claim 1, wherein: The water distribution member (100) comprises a bottom plate (101) and a shell (102) that are mutually engaged; the water storage chamber (110) is formed by the bottom plate (101) and the shell (102) being mutually enclosed; all the water inlet holes (121) are provided on the bottom plate (101); the water outlet holes (130) are provided on the shell (102); and a sealing structure (170) is provided between the bottom plate (101) and the shell (102).

8. The spray arm assembly according to claim 7, wherein: The outer side wall of the bottom plate (101) is provided with grid-shaped reinforcing ribs (150); The outer side wall of the shell (102) is provided with a snap-fit ​​structure (160) for coupling with the bowl basket.

9. The spray arm assembly according to claim 1, wherein: The spray arm (200) has a water inlet connected to the water passage, a connecting piece (300) is provided between the spray arm (200) and the water distribution piece (100), and the connecting piece (300) is provided with a connecting channel (310) communicating with the water outlet (130) and the water inlet; At least one water spray hole (210) is provided on both sides of the water inlet in the longitudinal direction of the spray arm (200), and the water inlet is connected to the connecting channel (310); One end of the connecting member (300) away from the water diversion member (100) is inserted into the water inlet and is rotatably connected to the spray arm (200); a diversion portion is provided on the inner wall of the water passage; the diversion portion protrudes from the inner wall of the water passage and extends into the interior of the connecting channel (310); the diversion portion and the inner wall of the connecting channel (310) are spaced apart.

10. A dishwasher, characterized in that A spray arm assembly according to any one of claims 1 to 9 is provided.

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