Spraying arm structure for strengthening area washing and dish washing machine

By setting up the overlap or cross layout of the water inlet channel and multiple water spray ports in the dishwasher spray arm design, the problem of uneven cleaning of the spray arm is solved, achieving a wider cleaning coverage and higher cleaning effect.

CN223208383UActive Publication Date: 2025-08-12GUANGDONG HAIXIN WASHING APPLIANCE MFG CO LTD
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Patent Information

Application Number
CN202422495375.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-15
Publication Date
2025-08-12
Estimated Expiration
2034-10-15

AI Technical Summary

Technical Problem

The spray arm design of existing dishwashers has problems of uneven cleaning, resulting in inadequate cleaning of tableware stains.

Method used

The inside of the spray arm is designed to be hollow, with a water inlet channel on one side of the spray arm body and several main water spray ports on the other side. The adjacent position of the main water spray port is also equipped with a secondary water spray port, so that the spray areas of the main water spray port and the secondary water spray port overlap or cross. The overlap or cross design of the spray area is used to ensure that the cleaning covers a wider area.

Benefits of technology

Through the overlap or cross-design of the spray area, the cleaning blind spots are reduced, and the overall cleaning effect of the dishwasher is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spraying arm structure for strengthening area washing and a dish washing machine. The spraying arm structure for strengthening area washing comprises a spraying arm body, the interior of the spraying arm body is hollow, a water inlet channel is formed in one side of the spraying arm body, a plurality of main water spraying openings are formed in the other side of the spraying arm body, and auxiliary water spraying openings are further formed in the positions adjacent to the main water spraying openings, so that spraying areas of the main water spraying openings and the auxiliary water spraying openings are overlapped or crossed. The interior of the spraying arm body is hollow, one side of the spraying arm body is provided with the water inlet channel, the other side of the spraying arm body is provided with the main water spraying openings, and the auxiliary water spraying openings are further formed in the positions adjacent to the main water spraying openings, so that the spraying areas of the main water spraying openings and the auxiliary water spraying openings are overlapped or crossed; by means of the design, overlapping or crossing of the spraying areas is ingeniously utilized, and therefore it is ensured that cleaning can cover wider areas, cleaning blind areas are reduced, and the overall cleaning effect is improved.
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Description

Technical Field

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

[0002] Currently, most dishwasher spray arms utilize multiple, evenly distributed or staggered holes to spray different areas of the dishware. The spray arms rotate and spray multiple times within their covered area to clean the dishware. However, when using this arrangement of spray holes, areas of dishware stains may not be fully cleaned, resulting in unsatisfactory cleaning results and the disadvantage of incomplete cleaning. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a spray arm structure and a dishwasher for enhancing regional washing.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] In the first aspect, an embodiment of the utility model provides a spray arm structure for enhanced area washing, comprising: a spray arm body, the interior of the spray arm body is hollow, a water inlet channel is provided on one side of the spray arm body, and a plurality of main water spray outlets are provided on the other side, and auxiliary water spray outlets are also provided at adjacent positions of the main water spray outlets so that the spraying areas of the main water spray outlets and the auxiliary water spray outlets overlap or intersect.

[0006] In a specific embodiment, the main water spraying port and the auxiliary water spraying port are both arranged obliquely.

[0007] In a specific embodiment, the spraying angle of the auxiliary water spraying port is less than or equal to the spraying angle of the main water spraying port.

[0008] In a specific embodiment, the spraying angles of the auxiliary water spray outlet and the main water spray outlet are both 30 degrees to 80 degrees.

[0009] In a specific embodiment, the distance between the main water spray port and the auxiliary water spray port is 3 mm-12 mm.

[0010] In a specific embodiment, the spray arm body is composed of a spray arm upper shell and a spray arm lower shell, the main water spray port and the auxiliary water spray port are arranged on the spray arm upper shell, and the water inlet channel is arranged on the spray arm lower shell.

[0011] In a specific embodiment, slag flushing ports are further provided at both ends of the lower shell of the spray arm.

[0012] In a specific embodiment, the water inlet channel is arranged at the center of the bottom of the lower shell of the spray arm.

[0013] In a specific embodiment, the lower shell of the spray arm is further provided with reinforcing ribs at both ends of the water inlet channel.

[0014] The spray arm structure of the utility model for enhanced regional washing has the following beneficial effects compared with the prior art: by setting the interior of the spray arm body to be hollow, a water inlet channel is provided on one side of the spray arm body, and a plurality of main water spray outlets are provided on the other side, and auxiliary water spray outlets are also provided at adjacent positions of the main water spray outlets, so that the spraying areas of the main water spray outlets and the auxiliary water spray outlets overlap or intersect, so that the auxiliary water spray outlets can supplement the flushing of areas that cannot be sprayed by the main water spray outlets. This design cleverly utilizes the overlap or intersection of the spray areas, thereby ensuring that the cleaning can cover a wider area, reducing blind spots in cleaning, and improving the overall cleaning effect.

[0015] In a second aspect, an embodiment of the present invention provides a dishwasher comprising the spray arm structure for enhanced zone washing as described above.

[0016] The dishwasher of the present invention has the following beneficial effects compared with the prior art: by setting the interior of the spray arm body to be hollow, a water inlet channel is provided on one side of the spray arm body, and a plurality of main water spray outlets are provided on the other side, and auxiliary water spray outlets are also provided at adjacent positions of the main water spray outlets, so that the spraying areas of the main water spray outlets and the auxiliary water spray outlets overlap or intersect, so that the auxiliary water spray outlets can supplement the flushing of areas that are not sprayed by the main water spray outlets. This design cleverly utilizes the overlapping or intersecting spraying areas, thereby ensuring that cleaning can cover a wider area, reducing blind spots in cleaning, and improving the overall cleaning effect of the dishwasher.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A three-dimensional schematic diagram of the spray arm structure for enhanced area washing provided by the utility model;

[0020] Figure 2 This is a schematic front view of the spray arm structure for enhanced zone washing provided by the present invention;

[0021] Figure 3 A bottom view schematic diagram of the spray arm structure for enhanced zone washing provided by the present invention;

[0022] Figure 4 This is a schematic cross-sectional view of the spray arm structure for enhanced zone washing provided by the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0027] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0028] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0030] See also Figures 1 to 4 In the specific embodiment shown, the utility model discloses a spray arm structure for enhanced regional washing, comprising: a water spray port 10, the interior of the water spray port 10 is hollow, a water inlet channel 121 is provided on one side of the water spray port 10, and a plurality of main water spray ports 111 are provided on the other side, and auxiliary water spray ports 112 are further provided at adjacent positions of the main water spray ports 111, so that the spraying areas of the main water spray ports 111 and the auxiliary water spray ports 112 overlap or intersect.

[0031] Specifically, by setting the interior of the water nozzle 10 to be hollow, a water inlet channel 121 is provided on one side of the water nozzle 10, and a plurality of main water nozzles 111 are provided on the other side. A secondary water nozzle 112 is also provided adjacent to the main water nozzle 111, so that the spraying areas of the main water nozzle 111 and the secondary water nozzle 112 overlap or intersect, so that the secondary water nozzle 112 can supplement the area that the main water nozzle 111 cannot spray. This design cleverly utilizes the overlap or intersection of the spraying areas, thereby ensuring that the cleaning can cover a wider area, reducing blind spots in cleaning, and improving the overall cleaning effect. In addition, the interior of the water nozzle 10 is hollow. This design is mainly for accommodating and transmitting cleaning liquid. The setting of the water inlet channel 121 allows the cleaning liquid to enter the interior of the water nozzle 10 and then be sprayed out through specific water outlets (i.e., the main water nozzle 111 and the secondary water nozzle 112). In addition, a water inlet channel 121 is provided on one side of the water nozzle 10, while several main water nozzles 111 are distributed on the other side. These main water nozzles 111 are the main outlets for the cleaning liquid and are responsible for producing the main spray effect. Auxiliary water nozzles 112 are also provided adjacent to the main water nozzles 111. This layout allows the spray areas of the main water nozzles 111 and auxiliary water nozzles 112 to overlap or intersect, thereby reducing blind spots in cleaning. In addition, this spray arm structure is particularly suitable for applications requiring enhanced area cleaning, such as dishwashers and industrial cleaning equipment. In these devices, cleaning efficiency and cleaning results are crucial. By adopting this spray arm structure, the cleaning performance of the equipment can be effectively improved, meeting users' higher requirements for cleanliness.

[0032] In one embodiment, see Figure 4 As shown, the main water spraying port 111 and the auxiliary water spraying port 112 are both arranged obliquely.

[0033] Specifically, the obliquely arranged main water outlet 111 and auxiliary water outlet 112 can generate oblique spray water flows, which can cover more areas inside the equipment or on the surface to be cleaned; compared with vertically or horizontally arranged water outlets, oblique water outlets can more effectively clean some hard-to-reach corners and gaps, thereby reducing cleaning blind spots. In addition, the oblique water flow can generate a stronger impact force when it hits the surface to be cleaned, which helps to remove stubborn stains and residues. In addition, the oblique spray water flow forms a certain flow inside the equipment or on the surface to be cleaned, which helps to flush away stains and residues, thereby improving cleaning efficiency. In addition, the obliquely arranged main water outlet 111 and auxiliary water outlet 112 can make the spray area overlap, thereby ensuring that the cleaning liquid can fully cover the entire area to be cleaned, improving the uniformity and consistency of cleaning.

[0034] In one embodiment, the spraying angle of the auxiliary water spraying port 112 is smaller than or equal to the spraying angle of the main water spraying port 111 .

[0035] Specifically, the spray angle of the secondary water outlet 112 is smaller than or equal to that of the primary water outlet 111, meaning that the water mist or water flow from the secondary water outlet 112 is more concentrated in a specific area, thereby improving the cleaning intensity in that area. This design is particularly suitable for areas that require focused cleaning, such as heavily soiled and difficult-to-clean areas. Furthermore, by reducing the spray angle of the secondary water outlet 112, the cleaning fluid is more precisely applied to the target area, reducing unnecessary waste. This design also helps improve cleaning efficiency, as the cleaning fluid removes stains more quickly.

[0036] In one embodiment, the spraying angles of the auxiliary water spraying port 112 and the main water spraying port 111 are both 30 degrees to 80 degrees.

[0037] Specifically, a spray angle of 30-80 degrees can ensure that the cleaning liquid covers a wider area, which is especially important for cleaning objects with large areas or complex shapes. Within this angle range, the cleaning liquid can act on the surface to be cleaned at a certain speed and impact force, helping to remove stubborn stains and residues. In addition, the adjustability of the spray angle allows the cleaning equipment to adapt to different cleaning needs; for example, for areas that require fine cleaning, a smaller spray angle (such as 30-45 degrees) can be selected to reduce the waste of cleaning liquid and improve cleaning accuracy; while for areas that require large-area cleaning, a larger spray angle (such as 60-80 degrees) can be selected to improve cleaning efficiency. This design enables the cleaning equipment to be compatible with a variety of cleaning liquids and cleaning methods, such as high-pressure cleaning, foam cleaning, etc., to meet the different needs of users.

[0038] In one embodiment, the distance between the main water spraying port 111 and the auxiliary water spraying port 112 is 3 mm-12 mm.

[0039] Specifically, the distance between the main water jet 111 and the auxiliary water jet 112 is designed to be within the range of 3mm-12mm, ensuring that the cleaning areas between them effectively overlap or intersect. This design increases the coverage density and impact force of the cleaning liquid on the target area, thereby improving the cleaning effect. In other words, the main water jet 111 and the auxiliary water jet 112 work together to clean, so that while the cleaning time remains unchanged, the number of rinses in the hard-to-clean areas of the dishes is increased, thereby achieving the purpose of improving the cleaning effect.

[0040] In one embodiment, the water spray port 10 is composed of a spray arm upper shell 11 and a spray arm lower shell 12 , the main water spray port 111 and the auxiliary water spray port 112 are provided on the spray arm upper shell 11 , and the water inlet channel 121 is provided on the spray arm lower shell 12 .

[0041] Specifically, the water spout 10 consists of an upper spray arm shell 11 and a lower spray arm shell 12. This split design helps enhance the structural strength of the entire water spout 10. Through appropriate shell design and material selection (e.g., plastic), the water spout 10 maintains stability and durability even under high-pressure water flow or during long-term use. Furthermore, the split structure allows the upper spray arm shell 11 and the lower spray arm shell 12 to be repaired or replaced separately. If a component malfunctions or is damaged, there's no need to replace the entire water spout 10, reducing repair costs and time.

[0042] The spray arm upper shell 11 and the spray arm lower shell 12 are welded together using hot plate welding or ultrasonic welding to form the water spout 10. Both hot plate welding and ultrasonic welding utilize high-frequency vibration or high-temperature melting of the contact surfaces to achieve welding. Therefore, the weld strength is very high, ensuring a secure connection between the spray arm upper shell 11 and the spray arm lower shell 12. Both welding processes can form a continuous and dense weld, effectively preventing the leakage of cleaning fluid or other fluids from the weld and ensuring a good seal.

[0043] In one embodiment, slag flushing ports 122 are further provided at both ends of the spray arm lower shell 12 .

[0044] Specifically, the slag flushing port 122 is arranged at the bottom of the lower shell 12 of the spray arm. Through the design of the slag flushing port 122, a part of the cleaning liquid is sprayed out along the slag flushing port 122 to gather the residue scattered below the water spray port 10 to the central area, which helps to collect and process the residue more effectively, thereby improving the cleaning effect.

[0045] In one embodiment, the water inlet channel 121 is disposed at the center of the bottom of the spray arm lower shell 12 .

[0046] Specifically, setting the water inlet channel 121 at the center position of the bottom of the spray arm lower shell 12 can ensure that the cleaning liquid is evenly distributed from the center to the surrounding areas. This design helps to avoid the problem of uneven distribution of water flow inside the water nozzle 10, which leads to poor cleaning effect in certain areas. In addition, the evenly distributed water flow can act more effectively on the surface to be cleaned, thereby improving the cleaning efficiency. At the same time, the water inlet channel 121 at the center position also helps to reduce the resistance and loss of water flow in the water nozzle 10, so that the cleaning liquid can be more fully utilized. In addition, setting the water inlet channel 121 at the center position of the bottom of the spray arm lower shell 12 can help reduce the vibration and noise of the water nozzle 10 during the cleaning process. This is because the design of the center position can make the water flow more smoothly in the water nozzle 10, reducing the vibration and noise caused by the impact of the water flow.

[0047] In one embodiment, the spray arm lower shell 12 is further provided with reinforcing ribs 123 at both ends of the water inlet channel 121 .

[0048] Specifically, the main function of the reinforcing ribs 123 is to enhance the structural strength of the spray arm lower shell 12. Since the water inlet channel 121 is located at the bottom center of the spray arm lower shell 12, the water flow pressure and impact force in this area are relatively large. By providing the reinforcing ribs 123 in this area, these pressures and impact forces can be effectively dispersed and resisted, preventing the spray arm lower shell 12 from deformation or rupture. In addition, the reinforcing ribs 123 not only enhance the structural strength of the spray arm lower shell 12, but also improve its stability. During the cleaning process, the spray arm lower shell 12 needs to withstand the impact and vibration from the cleaning liquid and residue. The provision of the reinforcing ribs 123 can effectively reduce the impact of these impacts and vibrations on the spray arm lower shell 12, making it more stable and reliable.

[0049] The number of the main water spraying ports 111 and the auxiliary water spraying ports 112 is not limited and can be set according to actual needs.

[0050] The utility model also discloses a dishwasher, comprising the spray arm structure for enhanced zone washing as described above.

[0051] Specifically, the interior of the spray arm is hollow, a water inlet channel is provided on one side of the spray arm body, and several main water spray outlets are provided on the other side. Auxiliary water spray outlets are also provided adjacent to the main water spray outlets, so that the spraying areas of the main water spray outlets and the auxiliary water spray outlets overlap or intersect, so that the auxiliary water spray outlets can supplement the flushing of areas that cannot be sprayed by the main water spray outlets. This design cleverly utilizes the overlapping or intersection of the spraying areas, thereby ensuring that the cleaning can cover a wider area, reducing cleaning blind spots, and improving the overall cleaning effect of the dishwasher.

[0052] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A spray arm structure for enhanced area washing, characterized in that: include: The spray arm body is hollow inside, a water inlet channel is provided on one side of the spray arm body, and a plurality of main water spray outlets are provided on the other side. Auxiliary water spray outlets are also provided at adjacent positions of the main water spray outlets so that the spraying areas of the main water spray outlets and the auxiliary water spray outlets overlap or intersect.

2. The spray arm structure for enhanced area washing according to claim 1, characterized in that: The main water spraying port and the auxiliary water spraying port are both arranged obliquely.

3. The spray arm structure for enhanced area washing according to claim 2, characterized in that: The spraying angle of the auxiliary water spraying port is less than or equal to the spraying angle of the main water spraying port.

4. The spray arm structure for enhanced area washing according to claim 3, characterized in that: The spraying angles of the auxiliary water spraying port and the main water spraying port are both 30 degrees to 80 degrees.

5. The spray arm structure for enhanced area washing according to claim 1, characterized in that: The distance between the main water spray port and the auxiliary water spray port is 3mm-12mm.

6. The spray arm structure for enhanced area washing according to claim 1, characterized in that: The spray arm body is composed of a spray arm upper shell and a spray arm lower shell. The main water spray port and the auxiliary water spray port are arranged on the spray arm upper shell, and the water inlet channel is arranged on the spray arm lower shell.

7. The spray arm structure for enhanced area washing according to claim 6, characterized in that: Slag flushing ports are also provided at both ends of the lower shell of the spray arm.

8. The spray arm structure for enhanced area washing according to claim 6, characterized in that: The water inlet channel is arranged at the center position of the bottom of the lower shell of the spray arm.

9. The spray arm structure for enhanced area washing according to claim 6, characterized in that: The lower shell of the spray arm is also provided with reinforcing ribs at both ends of the water inlet channel.

10. A dishwasher, characterized in that: It comprises a spray arm structure for enhanced area washing as described in any one of claims 1 to 9.