Double-layer spraying arm

By designing a double-layer spray arm, with the main spray arm driving the auxiliary spray arm to rotate, the problem of complex structure and limited water coverage of the existing spray arm device is solved, achieving all-round water rinsing and improving the cleaning effect of the dishwasher.

CN223787602UActive Publication Date: 2026-01-13GUANGDONG SHANFU TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423151329.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2026-01-13
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Existing dishwasher spray arm devices have complex structures, and the swing spray arm can only swing but cannot rotate, resulting in a limited coverage area for the washing water and poor cleaning effect.

Method used

Design a double-layer spray arm, including a main spray arm and a secondary spray arm. The main spray arm drives the secondary spray arm to rotate together, and the secondary spray arm can spray water in all directions of 360 degrees through a hinge structure. Combined with the design of water-dividing protrusions and water inlet pipes, the rinsing coverage of the washing water is expanded.

Benefits of technology

It achieves dual rotation of the main spray arm and the auxiliary spray arm, expanding the rinsing coverage of the washing water and improving the cleaning effect of the dishwasher.

✦ Generated by Eureka AI based on patent content.

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Abstract

A double-layer gushing arm comprises a main gushing arm and an auxiliary gushing arm, and the main gushing arm comprises a rotating shaft serving as a water inlet pipe, a gushing arm part and an elastic buckle which is arranged on the gushing arm part and surrounds the water inlet pipe; the auxiliary gushing arms are arranged at the two ends of the gushing arm part and communicate with the gushing arm part. The auxiliary spraying arms are arranged at the two ends of the main spraying arm and rotate by 360 degrees along with the main spraying arm to spray water in all directions.
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Description

Technical Field

[0001] This utility model relates to a dishwasher device, and more particularly to a spray arm. Background Technology

[0002] The existing technology, Chinese patent 201510869724.4, describes a dishwasher spray arm device, which includes a spray arm base, a swing spray arm mounted on the spray arm base, a rotating spray arm rotatably mounted on the swing spray arm, and a transmission structure connected between the rotating spray arm and the swing spray arm to drive the swing spray arm to swing left and right when the rotating spray arm rotates. The swing spray arm has several first spray holes, and the rotating spray arm has several second spray holes. In this invention, when the rotating spray arm rotates, part of the power of the rotating spray arm can drive the swing spray arm to swing left and right through the transmission structure. Thus, through the dual movement and rinsing of the swing spray arm and the rotating spray arm, the washing water rinsing coverage of the dishwasher spray arm device can be effectively expanded, making the rinsing coverage of the dishwasher spray arm device closer to the rectangular horizontal cross-section of the washing cavity. This greatly improves the cleaning effect of the dishwasher, whose horizontal cross-section of the washing cavity is approximately rectangular. The problem is that the structure is complex, and the swing spray arm can only swing, not rotate. Utility Model Content

[0003] The purpose of this invention is to provide a double-layer spray arm, which features that both the main spray arm and the auxiliary spray arm can rotate.

[0004] This invention is implemented as follows: a double-layer spray arm, characterized in that it includes a main spray arm and a secondary spray arm.

[0005] The main spray arm includes a rotating shaft that also serves as a water inlet pipe, a spray arm section, and an elastic buckle located on the spray arm section and surrounding the water inlet pipe.

[0006] The auxiliary spray arms are located at both ends of the spray arm section and connected by the spray arm section.

[0007] The special feature of the double-layer spray arm is that the auxiliary spray arm is fixed to the spray arm and rotates together with the main spray arm.

[0008] The special feature of the double-layer spray arm is that the auxiliary spray arm and the main spray arm are pivotally connected, and the auxiliary spray arm revolves with the main spray arm and rotates on its own axis.

[0009] The double-layer spray arm is characterized in that: the top plates at both ends of the spray arm are provided with cylindrical hinge seats and water guide pipes provided in the cylindrical hinge seats, and the upper end of the hinge water guide pipe is provided with an annular guide rail.

[0010] The base plate of the auxiliary spray arm is provided with a water inlet hinge pipe and an auxiliary hook surrounding the water inlet hinge pipe, and the lower end of the water inlet hinge pipe is provided with a hinge cavity.

[0011] The water pipe rotates and seals with the hinge cavity. The water pipe is inserted into the cylindrical hinge seat, and the secondary hook and the annular guide rail are engaged.

[0012] The double-layer spray arm is characterized in that: the inner surface of the top plate of the main spray arm is provided with water-dividing protrusions along the width direction.

[0013] The water distribution protrusion is aligned with the diameter line of the inlet pipe.

[0014] This utility model discloses a double-layer spray arm, with the auxiliary spray arm located at both ends of the main spray arm. The auxiliary spray arm rotates 360 degrees with the main spray arm to spray water from all directions. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention.

[0016] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0017] Figure 3 This is a perspective view of the auxiliary spray arm of this utility model.

[0018] Figure 4 This is an exploded perspective view of this utility model.

[0019] Figure 5 This is a perspective view of the present invention. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] 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 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.

[0022] like Figure 1 As shown, a double-layer spray arm includes a main spray arm 1 and a secondary spray arm 2.

[0023] The main spray arm 1 includes a rotating shaft and water inlet pipe 11, a spray arm part 12, and an elastic buckle 13 provided on the spray arm part 12 and surrounding the water inlet pipe 11. The top two ends of the spray arm part 12 are provided with top spray holes 14, and the bottom two ends are provided with bottom spray holes 15.

[0024] The auxiliary spray arm 2 is located at both ends of the spray arm section 12 and is connected to the spray arm section 12.

[0025] The auxiliary spray arm 2 is fixed to the spray arm part 12 and rotates together with the main spray arm 1.

[0026] This invention can also be implemented as follows: the auxiliary spray arm 2 and the spray arm portion 12 are pivotally connected, and the auxiliary spray arm 2 revolves with the main spray arm 1 and rotates on its own axis.

[0027] As a further improvement of this utility model: the top plates at both ends of the spray arm 12 are provided with cylindrical hinge seats 121 and water guide pipes 122 provided in the cylindrical hinge seats 121, and the upper end of the hinge water guide pipes 122 is provided with an annular guide rail 123; the water guide pipes 122 are connected to the inner cavity of the spray arm 122.

[0028] The base plate of the auxiliary spray arm 2 is provided with a water inlet hinge pipe 21 and an auxiliary hook 22 surrounding the water inlet hinge pipe 21. The lower end of the water inlet hinge pipe 21 is provided with a hinge cavity 211.

[0029] The water pipe 122 is rotatably fitted and sealed with the hinge cavity 211. The water pipe 122 is inserted into the cylindrical hinge seat 121, and the secondary hook 22 and the annular guide rail 123 are fastened together.

[0030] As a further improvement of this utility model: the inner surface of the top plate of the main spray arm 1 is provided with a water-dividing protrusion 14 along the width direction.

[0031] The diameter lines of the water distribution protrusion 14 and the water inlet pipe 11 are opposite each other.

[0032] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dual-layer spray arm, characterized by: The main spray arm and the auxiliary spray arm, The main spray arm comprises a rotating shaft and a water inlet pipe, a spray arm part and an elastic buckle arranged on the spray arm part and surrounding the water inlet pipe, the top of the spray arm part is provided with top water spraying holes and the bottom of the spray arm part is provided with bottom water spraying holes; The auxiliary spray arm is arranged on the top of the two ends of the spray arm part and communicates with the spray arm part; The auxiliary spray arm and the spray arm part are pivotally connected, the auxiliary spray arm revolves with the main spray arm and rotates by itself, the auxiliary spray arm rotates with the main spray arm by 360 degrees and sprays water in all directions.

2. A dual layer spray arm according to claim 1, wherein: The top plate of the two ends of the spray arm part is provided with a cylindrical hinge seat and a water guide pipe arranged in the cylindrical hinge seat, the upper end of the hinge water guide pipe is provided with an annular guide rail; The bottom plate of the auxiliary spray arm is provided with a water inlet hinge pipe and an auxiliary buckle surrounding the water inlet hinge pipe, the lower end of the water inlet hinge pipe is provided with a hinge cavity; The water guide pipe and the hinge cavity are rotationally matched and sealed, the water guide pipe is inserted into the cylindrical hinge seat, the auxiliary buckle and the annular guide rail are buckled.

3. A dual layer spray arm according to claim 1 or 2, wherein: The inner surface of the top plate of the main spray arm is provided with a water distribution protrusion in the width direction; The water distribution protrusion and the diameter line of the water inlet pipe are opposite.

Citation Information

Patent Citations

  • dishwasher spray arm unit

    CN105266739B