Spraying arm structure for dish washing machine

Abstract

The utility model relates to the technical field of spraying arms for dishwashers, in particular to a spraying arm structure for a dishwasher, which comprises a spraying arm, the spraying arm is provided with a water inlet channel and a plurality of first spraying assemblies, and each first spraying assembly comprises a V-shaped diversion trench. A first water spraying hole communicated with the water inlet channel is formed in the flow guide groove, the flow guide groove is provided with a first flow guide structure, the first flow guide structure comprises a first flow guide face and a second flow guide face, and the first flow guide face and the second flow guide face are arranged in a V shape; according to the spraying arm, the V-shaped flow guide grooves are formed and play a role in guiding water sprayed out of the first water spraying holes, the water sprayed out of the first water spraying holes is guided by the flow guide grooves to be sprayed to the two sides, the spraying range of the first water spraying holes is enlarged, and therefore the spraying arm has the wider cleaning range.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of spray arms for dishwashers, in particular to a spray arm structure for a dishwasher. BACKGROUND

[0002] The spray arm is an important component of a dishwasher. The dishwasher motor drives the washing pump to pressurize water, forming a high-pressure water flow. The heating pipe heats the water to an appropriate temperature. When the water is sprayed from the spray arm, the spray arm is continuously rotated by the reaction force of the water spray, so that the hot water with detergent is densely sprayed to the surface of the tableware at a certain pressure.

[0003] The spray arm is provided with spray holes, which are usually distributed at different angles to achieve omnidirectional cleaning of tableware. Patent No. 2024116943930 discloses a spray arm assembly for a dishwasher, which includes a main spray arm and a secondary spray arm. A plurality of water spray openings are formed in the main spray arm and the secondary spray arm. The water spray openings are circular openings, which have relatively large impact force and high range. However, the spray range is relatively limited, which limits the cleaning range of the spray arm and easily causes dead angles in the bowl basket that cannot be washed. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies or problems in the prior art, the present disclosure provides a spray arm structure for a dishwasher, which has a larger spray range.

[0005] The technical solution adopted by the present disclosure to solve the above technical problems is: a spray arm structure for a dishwasher, comprising a spray arm, the spray arm is provided with a water inlet channel and a plurality of first spray assemblies, the first spray assembly comprises a V-shaped flow guide groove, and the flow guide groove is provided with a first water spray hole in communication with the water inlet channel.

[0006] As a preferred embodiment, the flow guide groove is provided with a first flow guide structure, the first flow guide structure comprises a first flow guide surface and a second flow guide surface, and the first flow guide surface and the second flow guide surface are arranged in a V shape.

[0007] In some embodiments, the first water spray hole is arranged on the first flow guide surface or the second flow guide surface.

[0008] In some embodiments, the first flow guide surface is provided with a first notch, the second flow guide surface is provided with a second notch, the first notch and the second notch are arranged oppositely, and the first water spray hole is enclosed by the first notch and the second notch.

[0009] As a preferred embodiment, the first notch and the second notch are arc-shaped.

[0010] As a preferred embodiment, the back of the flow guide groove is provided with a spherical surface protruding to one side of the flow guide groove, and the first water spray hole communicates with the water inlet channel through the spherical surface.

[0011] As a preferred embodiment, the flow guide groove is further provided with a second flow guide structure, and the second flow guide structure comprises two third flow guide surfaces respectively arranged at two ends of the first flow guide surface and the second flow guide surface.

[0012] As a preferred embodiment, the spray arm is further provided with a plurality of second water spraying holes, and the plurality of second water spraying holes are arranged at two sides of the first spraying assembly, and the second water spraying hole is a circular hole or an elliptical hole or a long strip-shaped hole.

[0013] As a preferred embodiment, the first spraying assembly and the second water spraying hole are arranged at a first side of the spray arm, and a third water spraying hole is arranged at a second side of the spray arm.

[0014] As a preferred embodiment, the second side of the spray arm is provided with a connecting head, and the connecting head is used for connecting the inner water pipe.

[0015] Compared with the prior art, the V-shaped flow guide groove is arranged, which plays a guiding role on the water sprayed by the first water spraying hole, so that the water sprayed by the first water spraying hole is guided to the two sides by the flow guide groove, the spraying range of the first water spraying hole is expanded, and the spray arm has a wider cleaning range. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present application. In addition, unless specifically indicated, the drawings only schematically show the composition or structure of the described objects and can contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0017] Figure 1 is one of the structural schematic diagrams of a spray arm structure for a dishwasher according to the present disclosure;

[0018] Figure 2 is a partial enlarged view of A in the present disclosure; Figure 1

[0019] Figure 3 is one of the structural schematic diagrams of a first spraying assembly according to the present disclosure;

[0020] Figure 4 is another one of the structural schematic diagrams of a first spraying assembly according to the present disclosure;

[0021] Figure 5 is still another one of the structural schematic diagrams of a first spraying assembly according to the present disclosure;

[0022] Figure 6 is a fourth one of the structural schematic diagrams of a first spraying assembly according to the present disclosure;​

[0023] Figure 7 is one of sectional views of the first spray assembly of the present disclosure;

[0024] Figure 8 is another sectional view of the first spray assembly of the present disclosure;

[0025] Figure 9 is a second structural schematic view of the spray arm structure for the dishwasher of the present disclosure;

[0026] Figure 10 is a third structural schematic view of the spray arm structure for the dishwasher of the present disclosure;

[0027] Figure 11 is a partial enlarged view of B in the Figure 10

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1. first spray assembly; 2. first flow guide surface; 3. second flow guide surface; 4. first water spraying hole; 5. third flow guide surface; 6. spherical surface; 7. connecting head; 8. second water spraying hole; 9. third water spraying hole. DETAILED DESCRIPTION

[0030] In order to make the technical personnel in the art better understand the technical solutions of the present disclosure, the present disclosure will be described in detail, clearly and completely in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present disclosure and do not limit the present disclosure.

[0031] It should be understood by those skilled in the art that in the disclosure of the present application, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0032] Please refer to Figures 1-3 ​As shown, the present application provides a spray arm structure for a dishwasher, comprising a spray arm, the spray arm is provided with a water inlet channel and a plurality of first spray assemblies 1, the first spray assembly 1 comprises a V-shaped flow guide groove, the cross section of the flow guide groove is V-shaped, and the flow guide groove is provided with a first water outlet hole 4 which is connected with the water inlet channel. Water enters the inside of the spray arm from the water inlet channel, and is sprayed out from the first water outlet hole 4 to clean the tableware. The cross section of the flow guide groove is V-shaped, which has a guiding effect on the water sprayed out from the first water outlet hole 4, so that the water is sprayed outward along the flow guide groove in a fan shape, which can effectively expand the spray range of the first water outlet hole 4, so that the spray arm has a wider cleaning range. It should be noted that the first spray assembly 1 can be integrally formed with the spray arm, or can be installed in the corresponding reserved mounting hole of the spray arm, and then the first spray assembly 1 is installed on the mounting hole.

[0033] Specifically, the flow guide groove is a long strip-shaped groove, which is provided with a first flow guide structure, the first flow guide structure comprises a first flow guide surface 2 and a second flow guide surface 3, and the first flow guide surface 2 and the second flow guide surface 3 are arranged in a V shape. Such arrangement makes the flow guide groove have an outward diffusion structure, and the water of the first water outlet hole 4 has a tendency to expand outward when sprayed along the first flow guide surface 2 and the second flow guide surface 3, thereby expanding the spray range.

[0034] In some embodiments, the first water outlet hole 4 is arranged on the first flow guide surface 2 or the second flow guide surface 3. If the first water outlet hole 4 is arranged on the first flow guide surface 2, since the first flow guide surface 2 is arranged obliquely, the water sprayed out from the first water outlet hole 4 will impact on the second flow guide surface 3, most of the water is sprayed outward along the second flow guide surface 3, and a small part of the water is sprayed outward along the first flow guide surface 2. Similarly, if the first water outlet hole 4 is arranged on the second flow guide surface 3, the water spray path is similar to the above. Arranging the first water outlet hole 4 only on the first flow guide surface 2 or only on the second flow guide surface 3 will cause the flow of water sprayed along the first flow guide surface 2 and the second flow guide surface 3 to be too different, and the flow of water diverging to both sides will be too different, which may cause the water flow on one side to be too small, affecting the spray stroke, so this embodiment is not preferred.

[0035] Please refer to Figure 3 and Figure 4 As shown, in some embodiments, the first flow guide surface 2 is provided with a first notch, the second flow guide surface 3 is provided with a second notch, the first notch and the second notch are arranged oppositely, and the first water outlet hole 4 is surrounded by the first notch and the second notch. Specifically, the area of the first water outlet hole 4 on the first flow guide surface 2 and the second flow guide surface 3 can be the same or different. Preferably, the area of the first water outlet hole 4 on the first flow guide surface 2 and the second flow guide surface 3 is the same, so that the water can be relatively uniformly sprayed outward along the first flow guide surface 2 and the second flow guide surface 3, thereby effectively expanding the spray range.

[0036] It should be noted that the first gap and the second gap are arc-shaped. The two arc-shaped gaps are combined to make the first water injection hole 4 substantially elliptical, so that the water sprayed by the first water injection hole 4 spreads better along the first guide surface 2 and the second guide surface 3 and is sprayed to both sides.

[0037] As shown in Figures 5-8 particular, the back of the guide groove is provided with a spherical surface 6 protruding to one side of the guide groove, and the first water injection hole 4 penetrates the spherical surface 6 and communicates with the water inlet channel. The back of the guide groove faces the inner water pipe, and the back of the guide groove is provided with the spherical surface 6, which guides the water entering from the inner water pipe, so that the water enters the first water injection hole 4 along the spherical surface 6.

[0038] Please refer to Figure 3 and Figure 4 In an embodiment of the present disclosure, the guide groove is also provided with a second guide structure, and the second guide structure includes two third guide surfaces 5, which are respectively arranged at two ends of the first guide surface 2 and the second guide surface 3. Specifically, the first guide surface 2 and the second guide surface 3 are arranged along the length direction of the guide groove, and the third guide surface 5 is arranged along the width direction of the guide groove. The first guide structure and the second guide structure are arranged simultaneously in order to guide the water in the length direction and the width direction of the guide groove, so as to further expand the spraying range of the first water injection hole 4.

[0039] Please continue to refer to Figure 1 and Figure 2 As preferred, the spray arm is also provided with a plurality of second water injection holes 8, which are arranged on both sides of the first spray assembly 1. The second water injection hole 8 is a circular hole or an elliptical hole or a long strip-shaped hole. The second water injection hole 8 is a commonly used water injection hole in the prior art. The first spray assembly 1 is arranged at the middle position of the spray arm to expand the spraying range, and the second water injection hole 8 is arranged to improve the spraying distance. The spray arm is provided with the first water injection hole 4 and the second water injection hole 8 at the same time, which not only can expand the spraying range and avoid cleaning dead angles, but also can ensure a long spraying distance and a strong spraying intensity, so as to strongly remove dirt and ensure cleaning effect.

[0040] Please refer to Figures 9-11 The first spray assembly 1 and the second water injection hole 8 are arranged on the first side of the spray arm, and the second side of the spray arm is provided with a third water injection hole 9. When the water flow is sprayed from the third water injection hole 9, a reaction force will be generated on the spray arm. According to Newton's third law, the action of force is mutual, and the reaction force of water injection pushes the spray arm to rotate. In this way, the spray arm can rotate while spraying water, so that the water flow covers all areas inside the dishwasher, making the cleaning more uniform and efficient.

[0041] In addition, the second side of the spray arm is provided with a connecting head 7, which is used to connect the inner water pipe.

[0042] The above has been made a detailed introduction to the present application, the principle and implementation mode of the present application are described in this paper by applying specific examples, the above example is only used to help understand the present application and the core idea. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, the present application can be improved and modified, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A spray arm structure for a dishwasher, characterized in that, The spray arm is provided with a water inlet channel and a plurality of first spray assemblies (1), and the first spray assembly (1) comprises a V-shaped flow guide groove, and a first water spraying hole (4) in communication with the water inlet channel is arranged in the flow guide groove.

2. The spray arm structure for a dishwasher according to claim 1, characterized in that, The flow guide groove is provided with a first flow guide structure comprising a first flow guide surface (2) and a second flow guide surface (3), and the first flow guide surface (2) and the second flow guide surface (3) are arranged in a V shape.

3. The spray arm structure for a dishwasher according to claim 2, characterized in that, The first water spraying hole (4) is arranged on the first flow guide surface (2) or the second flow guide surface (3).

4. The spray arm structure for a dishwasher according to claim 2, characterized in that, The first flow guide surface (2) is provided with a first notch, and the second flow guide surface (3) is provided with a second notch, and the first notch and the second notch are arranged oppositely, and the first water spraying hole (4) is enclosed by the first notch and the second notch.

5. The spray arm structure for a dishwasher according to claim 4, characterized in that, The first notch and the second notch are arc-shaped.

6. The spray arm structure for a dishwasher according to claim 1, characterized in that, The back of the flow guide groove is provided with a spherical surface (6) protruding to one side of the flow guide groove, and the first water spraying hole (4) penetrates the spherical surface (6) and communicates with the water inlet channel.

7. The spray arm structure for a dishwasher according to claim 2, characterized in that, The flow guide groove is further provided with a second flow guide structure comprising two third flow guide surfaces (5) arranged at two ends of the first flow guide surface (2) and the second flow guide surface (3) respectively.

8. The spray arm structure for a dishwasher according to claim 1, characterized in that, The spray arm is further provided with a plurality of second water spraying holes (8), and the plurality of second water spraying holes (8) are arranged on both sides of the first spray assembly (1), and the second water spraying hole (8) is a circular hole or an elliptical hole or a long strip-shaped hole.

9. The spray arm structure for a dishwasher according to claim 8, characterized in that, The first spray assembly (1) and the second water spraying hole (8) are arranged on the first side of the spray arm, and the second side of the spray arm is provided with a third water spraying hole (9).

10. The spray arm structure for a dishwasher according to claim 9, characterized in that, The second side of the spray arm is provided with a connecting head (7) for connecting an inner water pipe.

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