A dishwasher spray arm

Abstract

This utility model discloses a dishwasher spray arm, including at least two first spray arms. Each first spray arm includes a base plate and a cover plate sealed on the base plate. The front end of the cover plate is inclined towards the base plate, forming an inclined portion. The inclined portion is provided with a terminal spray nozzle, which is located on one side of the centerline along the length of the cover plate. The dishwasher spray arm provided by this utility model overcomes the shortcomings of existing spray arms in cleaning diagonally opposite areas of dishes in a square dish rack, greatly improving the comprehensiveness of cleaning dishes in the square dish rack and ensuring that dishes placed in all parts of the dish rack are effectively cleaned.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher accessories technology, specifically to a dishwasher spray arm. Background Technology

[0002] In modern home life, dishwashers, as a kitchen appliance that can effectively reduce people's housework burden, are becoming increasingly popular. One of the core functional components of a dishwasher is the spray arm, which sprays water at high speed to thoroughly rinse the dishes placed in the dish rack, thereby removing grease and stains.

[0003] Currently, most dishwashers on the market use spray arms that typically move in a circular motion around a central axis. The accompanying dish rack, for space utilization and to fit kitchen cabinets, is often designed as a square structure. In this conventional design, the circular trajectory formed by the rotating spray arm is actually the inscribed circle of the square dish rack. This leads to a significant problem: the diagonal areas of the square dish rack are outside the coverage of the spray arm's normal circular motion trajectory. Therefore, water cannot effectively reach these diagonal areas, making it difficult to thoroughly rinse dishes placed in these areas. This greatly affects the dishwasher's cleaning performance and reduces user satisfaction.

[0004] To address this issue, some existing technologies attempt to improve cleaning dead zones by increasing the number of spray arms or adjusting the water jet angle. However, these methods often come with negative effects such as increased structural complexity, higher energy consumption, and increased costs, making it difficult to achieve an ideal balance of overall performance in practical applications. Therefore, improvements are needed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention proposes a dishwasher spray arm that can precisely cover the diagonal areas of a square dish rack that are difficult for traditional spray arms to reach. This overcomes the limitations of existing spray arms in cleaning dishes in the diagonal areas of a square dish rack, greatly improving the comprehensiveness of cleaning dishes in the square dish rack and ensuring that dishes placed in all parts of the dish rack are effectively cleaned.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A dishwasher spray arm includes at least two first spray arms. Each first spray arm includes a base plate and a cover plate that is sealed on the base plate. The front end of the cover plate is inclined toward the base plate to form an inclined portion. The inclined portion is provided with an end spray nozzle, which is located on one side of the centerline of the cover plate along its length.

[0008] Preferably, the cover plate is further provided with a plurality of intermediate spray nozzles, which are distributed on both sides of the centerline along the length of the cover plate.

[0009] Preferably, it also includes a connecting component, through which at least two of the first spray arms are interconnected.

[0010] Preferably, the connecting assembly includes a connecting shaft and a connector sleeved outside the connecting shaft. The connector includes a first hole and a second hole. The connecting shaft passes through the first hole and the second hole from top to bottom and extends out of the second hole. The connector also includes an insertion interface communicating with the inner cavity of the connector. The rear end opening of the first spray arm is inserted into the insertion interface.

[0011] Preferably, it further includes at least one second spray arm, the front end of which is provided with an end spray nozzle.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention utilizes a tilted section at the front end of the cover plate of the first spray arm, with a terminal spray nozzle positioned on this section. The terminal spray nozzle is located on one side of the centerline along the length of the cover plate, resulting in water sprayed at a specific angle. This allows for more targeted application of cleaning solution to the diagonal areas of the square dishwashing basket. Furthermore, the asymmetrical layout, combined with the tilt angle of the tilted section, ensures precise coverage of the cleaning solution in areas that traditional spray arms struggle to reach. This unique structural design overcomes the shortcomings of existing spray arms in cleaning diagonal areas of square dishwashing baskets, significantly improving the overall cleaning effectiveness and ensuring that all items placed in the basket are thoroughly cleaned. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is a bottom view of the present invention;

[0018] Figure 4 This is an exploded view of the present invention;

[0019] Figure 5 This is a perspective view of the connecting shaft in this utility model.

[0020] Attached diagram labels: 1. First spray arm; 11. Base plate; 12. Cover plate; 121. Center line; 122. Inclined section; 123. End spray nozzle; 124. Middle spray nozzle; 13. Rear end opening;

[0021] 2. Connecting assembly; 21. Connecting shaft; 211. First end of connecting shaft; 212. Main body; 213. First plate; 214. Second plate; 215. Screw cap; 22. Connector; 221. First hole; 222. Second hole; 223. Insertion interface;

[0022] 3. Second spray arm. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "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. They are used only for the convenience of describing this utility model and for 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 this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0026] See Figures 1 to 5This utility model discloses a spray arm, including at least two first spray arms 1. Each first spray arm 1 includes a base plate 11 and a cover plate 12 that is sealed on the base plate 11. The base plate 11 and the cover plate 12 enclose an inner cavity for storing clean water. The front end of the cover plate 12 is inclined towards the base plate 11 to form an inclined portion 122. The inclined portion 122 is provided with an end spray nozzle 123, which is located on one side of the centerline 121 along the length direction of the cover plate 12.

[0027] This invention achieves its purpose solely by providing an inclined portion 122 at the front end of the cover plate 12 of the first spray arm 1, with a terminal spray nozzle 123 positioned on the inclined portion 122 and located on one side of the center line 121. This allows the water sprayed from the terminal spray nozzle 123 to have a specific angle, enabling more targeted spraying of cleaning fluid onto the diagonal areas of the square dish rack. Furthermore, because the terminal spray nozzle 123 is located on one side of the center line 121, this asymmetrical layout, combined with the inclined angle of the inclined portion 122, ensures that the cleaning fluid accurately covers the diagonal areas of the square dish rack that are difficult to reach with traditional spray arms. This unique structural design overcomes the shortcomings of existing spray arms in cleaning the diagonal areas of a square dish rack, significantly improving the comprehensiveness of cleaning the dishes within the square dish rack and ensuring that dishes placed in all parts of the dish rack are effectively cleaned.

[0028] Furthermore, the cover plate 12 is also provided with a number of intermediate spray nozzles 124, which are distributed on both sides of the centerline 121 along the length direction of the cover plate 12.

[0029] In this embodiment, a number of intermediate spray nozzles 124 are provided to spray the bowls and chopsticks located in the middle. Since the intermediate spray nozzles 124 are distributed on both sides of the center line 121, they can spray the objects to be cleaned from different directions. This distributed layout can make the cleaning liquid cover the area to be cleaned more evenly, reduce cleaning blind spots, improve the comprehensiveness and uniformity of cleaning, and thus effectively improve the cleaning effect.

[0030] Furthermore, it also includes a connecting component 2, and at least two of the first spray arms 1 are interconnected through the connecting component 2. In this embodiment, there are two first spray arms 1.

[0031] In this embodiment, the connecting component 2 connects the inner cavities of the two first spray arms 1, allowing them to work together and significantly improving cleaning efficiency. When cleaning a square dishwashing basket, the spray nozzles on the first spray arms 1 simultaneously spray cleaning fluid, enabling comprehensive rinsing of the basket, including diagonal areas, in a shorter time, effectively shortening the overall cleaning time. Furthermore, both first spray arms 1 are equipped with inclined sections 122, which, combined with the connecting component 2, connect the two first spray arms 1, making the device more adaptable to square dishwashing baskets with different placement arrangements. Regardless of the basket's orientation, there is always a spray nozzle corresponding to the inclined section 122 that can clean the diagonal areas at a suitable angle, ensuring that the cleaning process is not significantly affected by the basket's orientation. This greatly improves the comprehensiveness of cleaning the dishes in the square dishwashing basket, ensuring that dishes placed in all parts of the basket are effectively cleaned.

[0032] Specifically, the connecting assembly 2 includes a connecting shaft 21 and a connector 22 sleeved outside the connecting shaft 21. The connector 22 includes a first hole 221 and a second hole 222. The first end 211 of the connecting shaft 21 passes through the first hole 221 and the second hole 222 sequentially from top to bottom. Figure 4 (From the perspective of the second hole 222), and the connector 22 also includes an insertion interface 223 that communicates with the inner cavity of the connector 22. The rear opening 13 of the first spray arm 1 is inserted and fixed on the insertion interface 223, so that the inner cavity of the first spray arm 1 and the inner cavity of the connector 22 are connected.

[0033] Specifically, such as Figure 5 The connecting shaft 21 includes a main body 212, a first plate 213, a second plate 214, and a screw cap 215, which are sleeved on the main body 212 from top to bottom. The first plate 213 is sleeved on the top of the main body 212, and the screw cap 215 is matched with the thread on the middle side of the main body 214. The screw cap 215 and the thread are matched to lock the edge of the first hole 221 between the first plate 212 and the second plate 213, thereby achieving the sealing of the first hole 221.

[0034] Furthermore, it also includes at least one second spray arm 3. In this embodiment, one second spray arm 3 is provided. In this embodiment, the connector 22 has three insertion interfaces 223, which are respectively inserted into two first spray arms 1 and one second spray arm 3, thereby realizing the interconnection between the three spray arms and the inner cavity of the connector 22. The front end of the second spray arm 3 is provided with an end spray nozzle 123 on one side of the centerline (not marked in the figure) along the length direction of the second spray arm 3. Several intermediate spray nozzles 124 are distributed on both sides of the centerline (not marked in the figure) along the length direction of the second spray arm 3.

[0035] In this embodiment, by adding a second spray arm 3, more spray arms work together, increasing the number of times the tableware is cleaned in the same amount of time compared to two spray arms.

[0036] Specifically, the positions and numbers of several intermediate spray nozzles 124 on the two first spray arms 1 and the second spray arm 3 can be the same or different. In this embodiment, the number and positions of the intermediate spray nozzles 124 on the two first spray arms 1 and the second spray arm 3 are different, thereby improving the various rinsing angles and rinsing ranges within the cleaning range.

[0037] During operation, when the dishwasher is running, water flows into the inner cavity of the connector 22 through the second hole 222, then into the inner cavities of the first spray arm 1 and the second spray arm 3 through the insertion interface 223, and finally sprays out from the middle spray nozzle 124 and the end spray nozzle 123. The spray arm provided in this embodiment has an inclined part 122 at the front end of the first spray arm 1, and an end spray nozzle 123 is provided on the inclined part 122. Thus, the clean water sprayed from the end spray nozzle 123 has a certain degree of inclination, which can spray the cleaning liquid at a more targeted angle to the diagonal area of ​​the square dish rack. Since the end spray nozzle 123 is located on one side of the center line 121, this asymmetrical layout, combined with the inclination angle of the inclined part 122, makes up for the shortcomings of the existing spray arm in cleaning the tableware in the diagonal area of ​​the square dish rack, greatly improving the comprehensiveness of cleaning the tableware in the square dish rack, ensuring that the tableware placed in all parts of the dish rack can be effectively cleaned, and avoiding the problem of cleaning dead corners.

[0038] 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, comprising at least two first spray arms (1), each first spray arm (1) comprising a base plate (11) and a cover plate (12) sealed onto the base plate (11), characterized in that, The front end of the cover plate (12) is inclined toward the bottom plate (11) to form an inclined part (122). The inclined part (122) is provided with an end spray nozzle (123), which is located on one side of the centerline (121) of the cover plate (12) along the length direction.

2. The dishwasher spray arm according to claim 1, characterized in that, The cover plate (12) is also provided with a number of intermediate spray nozzles (124), which are distributed on both sides of the centerline (121) along the length direction of the cover plate (12).

3. The dishwasher spray arm according to claim 1, characterized in that, It also includes a connecting component (2), through which at least two of the first spray arms (1) are interconnected.

4. The dishwasher spray arm according to claim 3, characterized in that, The connecting assembly (2) includes a connecting shaft (21) and a connector (22) sleeved outside the connecting shaft (21). The connector (22) includes a first hole (221) and a second hole (222). The first end (211) of the connecting shaft (21) passes through the first hole (221) and the second hole (222) from top to bottom and extends out of the second hole (222). The connector (22) also includes an insertion interface (223) communicating with the inner cavity of the connector (22). The rear end opening (13) of the first spray arm (1) is inserted into the insertion interface (223).

5. The dishwasher spray arm according to claim 4, characterized in that, It also includes at least one second spray arm (3), the front end of which is provided with an end spray nozzle (123).

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