INNOVATIVE DISHWASHER SPRAY ARM

Abstract

This utility model relates to a new, innovative spray arm for dishwashers, comprising a spray arm support, a main spray arm, a front rotating spray arm, and a side oscillating spray arm. The main spray arm is rotatably mounted on the spray arm support. A first water outlet is located in the center of the upper face of the main spray arm, and the left and right ends of the main spray arm each have a second water outlet. The front rotating spray arm is rotatably mounted on the first water outlet, which is connected to the internal water circuit of the front rotating spray arm.A lateral oscillating spray arm is rotatably mounted on the second water outlet. This second water outlet is connected to the internal water circuit of the lateral oscillating spray arm. The lateral oscillating spray arm can oscillate relative to the main spray arm. This spray arm assembly comprises a front rotating spray arm and a lateral oscillating spray arm. The front rotating spray arm can rotate relative to the main spray arm, and the upper spray arm can oscillate alternately relative to the main spray arm. This allows, during the rotation of the main spray arm, an indirect increase in the spraying area of ​​this main spray arm and resolves the problem of dead zones in spraying caused by the positioning of the dishes.

Description

Title of the invention: INNOVATIVE SPRAY ARM FOR DISHWASHING technical field

[0001] The present utility model relates to an innovative spray arm for dishwashers. PREVIOUS STATE OF TECHNOLOGY

[0002] A dishwasher is an appliance capable of automatically cleaning various kitchen utensils such as bowls, chopsticks, plates, dishes, knives, and forks. In practice, it has been observed that the placement of utensils in the basket can vary depending on user habits, and that different types of dishes present varying levels of cleaning difficulty. Furthermore, some spray blind spots may occur, leading to incomplete cleaning of certain items. To address this issue, some dishwasher manufacturers have extended the wash cycle to improve cleaning efficiency. However, this solution results in a significant increase in water consumption due to the excessively long process.Other solutions involve adding extra spray arms inside the washing chamber to enhance cleaning efficiency, but this entails high costs.

[0003] It is therefore necessary to make further improvements. CONTENTS OF THE UTILITY MODEL

[0004] The present utility model aims to address the problems mentioned above. To this end, it proposes an innovative spray arm for dishwashers capable of providing a large spray coverage area, which significantly contributes to thorough cleaning of the dishes.

[0005] To achieve this objective, the present utility model proposes an innovative spray arm for dishwashers, comprising a spray arm support, a main spray arm, a front rotating spray arm, and a lateral oscillating spray arm. The main spray arm is rotatably mounted on the spray arm support. A first water outlet is located in the center of the upper face of the main spray arm. The two left and right lateral ends of the main spray arm are respectively provided with a second water outlet. The front rotating spray arm is rotatably mounted on the first water outlet. The first water outlet is connected to the internal water circuit of the front rotating spray arm. The lateral oscillating arm is rotatably mounted on said second water outlet; the second water outlet is in communication with the internal water circuit of the lateral oscillating spray arm; the lateral oscillating spray arm is able to oscillate relative to the main spray arm.

[0006] In one or more embodiments, the spray arm support is provided with a fixed gear, a transmission mechanism is disposed between the lateral oscillating spray arm and the main spray arm, the transmission mechanism comprises a transmission element and a movable gear, the transmission element is slidably connected to the main spray arm, the transmission element has an oblique groove and a straight groove, the lateral oscillating spray arm has a first insertion part engaged in the oblique groove, the movable gear is rotatably connected to the main spray arm and meshes with the fixed gear, the movable gear includes a second insertion part engaged in the straight groove, the second insertion part is eccentrically disposed on the movable gear, when the movable gear rotates,The transmission element performs a reciprocating linear movement due to the engagement of the second insert part in the straight groove, and the lateral oscillating spray arm performs a reciprocating rotary movement relative to the main spray arm due to the engagement of the first insert part in the oblique groove.

[0007] In one or more embodiments, a stop element is disposed under the transmission element, the stop element is fixed to the main spray arm to prevent the transmission element from detaching, the transmission element is provided with a positioning groove, the stop element has a positioning slide cooperating with said positioning groove.

[0008] In one or more embodiments, the second water outlet is provided with a socket tube body, and the lateral oscillating spray arm is provided with a channel for the insertion of said socket tube body.

[0009] In one or more embodiments, one or more sealing joints are arranged on the body of the socket tube.

[0010] In one or more embodiments, the first water outlet is provided with a shoulder, the front rotating spray arm includes a water inlet orifice coupled to the first water outlet, and the water inlet orifice is surrounded by elastic hooks cooperating with the shoulder.

[0011] In one or more embodiments, the upper part of the front rotating spray arm and the lateral oscillating spray arm is provided with vertical spray nozzles and / or inclined spray nozzles.

[0012] The technical effect of the present utility model compared to the prior art is as follows: the spray arm comprises a front rotating spray arm and a lateral oscillating spray arm. The front rotating spray arm can rotate relative to the main spray arm, while the front rotating spray arm can oscillate back and forth relative to the main spray arm. During the working rotation of the main spray arm, this indirectly increases the spraying area of ​​the main spray arm, thus resolving the problem of spray blind spots caused by the placement of the tools. DESCRIPTION OF THE ATTACHED DRAWINGS

[0013] Fig. 1 shows a schematic view of the structure of the spray arm according to an example embodiment of the present utility model;

[0014] Figure 2 shows a schematic view of the structure before assembly of the arm front rotary sprayer and lateral oscillating sprayer arm according to an example embodiment of the present utility model;

[0015] Figure 3 shows a schematic view of the structure of Figure 2 from another corner. SPECIFIC IMPLEMENTATION METHODS

[0016] To better understand this utility model, it will be described in more detail below with reference to an example embodiment and the accompanying figures. This example embodiment is given for explanatory purposes only and shall in no way limit the scope of this utility model as defined in the claims.

[0017] With reference to FIGS. 1 to 3, the present application relates to an innovative spray arm for dishwashers, comprising a spray arm support 1, a main spray arm 2, a front rotating spray arm 3, and a lateral oscillating spray arm 4. The main spray arm 2 is rotatably mounted on the spray arm support 1. A first water outlet 5 is located in the center of the upper face of the main spray arm 2, and the left and right ends of the main spray arm 2 are respectively provided with a second water outlet. The front rotating spray arm 3 is rotatably mounted on the first water outlet 5, the first water outlet being connected to the internal water circuit of the front rotating spray arm.Water enters the front rotating spray arm from the main spray arm, and, under the effect of pressure and the impact force of the water flow, the front rotating spray arm can rotate relative to the main spray arm. A lateral oscillating spray arm 4 is mounted to rotate on the second water outlet. The second water outlet is connected to the internal water circuit of the lateral oscillating spray arm. The lateral oscillating spray arm can oscillate relative to the main spray arm. When water enters the lateral oscillating spray arm from the main spray arm, and under the pressure and impact force of the water flow, the lateral oscillating spray arm can rotate relative to the main spray arm. This indirectly increases the spray area of ​​the spray arm and solves the problem of dead zones in the spray pattern caused by the placement of the dishes.

[0018] The spray arm support 1 is provided with a fixed gear 6. A transmission mechanism is disposed between the lateral oscillating spray arm and the main spray arm. The transmission mechanism comprises a transmission element 7 and a movable gear 8. The transmission element 7 is slidably connected to the main spray arm. The transmission element 7 has an oblique groove 9 and a straight groove 10. The lateral oscillating spray arm 4 has a first insert portion 11 engaged in the oblique groove. The movable gear 8 is rotatably connected to the main spray arm 2 and meshes with the fixed gear. The movable gear includes a second insert portion 12 engaged in the straight groove. The second insert portion is eccentrically disposed on the movable gear. When the movable gear 8 rotates,The transmission element 7 performs a reciprocating linear motion due to the engagement of the second insert part 12 in the straight groove 10, and the lateral oscillating spray arm 4 performs a reciprocating rotary motion relative to the main spray arm 2 due to the engagement of the first insert part 11 in the oblique groove 9. Specifically, when the water source enters the main spray arm, the main spray arm rotates under the pressure of the water source. During the rotation of the main spray arm, due to the meshing of the movable gear with the fixed gear, the movable gear is also driven in rotation. During the rotation process of the second insert part mounted on the movable gear, from an initial position to a position of 180 degrees,The second insertion part pushes the transmission element forward. When the second insertion part rotates from the 180-degree position to the 360-degree position, it pulls the transmission element backward. The rotation of the movable gear thus enables a reciprocating motion of the transmission element. During this back-and-forth reciprocating motion of the transmission element, the first insertion part moves alternately at both ends of the... oblique groove, which allows for an oscillating (pivoting) movement of the lateral oscillating spray arm relative to the main spray arm.

[0019] A stop element 13 is disposed under the transmission element 7. The stop element is fixed to the main spray arm 2 to prevent the transmission element from detaching. The transmission element is provided with a positioning groove 14. The stop element has a positioning slide 15 that cooperates with said positioning groove. The stop element is fixed to the main spray arm by means of screws, and through the cooperation between the positioning groove and the slide, the linear reciprocating movement of the transmission element can be ensured.

[0020] The second water outlet is provided with a socket tube body 16, and the lateral oscillating spray arm 4 is provided with a channel 17 for the insertion of the socket tube body, the socket tube body 16 is provided with one or more sealing gaskets to ensure sealing.

[0021] The first water outlet 5 is provided with a shoulder 18. The front rotating spray arm 3 includes a water inlet 19 coupled to the first water outlet, and the water inlet orifice is surrounded by elastic hooks 20 cooperating with the shoulder. The elastic hooks engage with the shoulder, allowing the front rotating spray arm to be assembled onto the main spray arm without hindering the rotation of the front rotating spray arm.

[0022] Vertical spray nozzles 21 and / or inclined spray nozzles 22 are arranged above the front rotating spray arm 3 and the lateral oscillating spray arm 4, the arrangement of nozzles oriented in different directions and angles allowing for better washing and rinsing of the dishes.

[0023] The embodiments described above are merely preferred examples of this utility model. The scope of protection of this utility model is not limited to these embodiments. Any modification or equivalent variant made by a person skilled in the art based on the principles of this utility model shall be considered as included within the scope of protection defined by the claims.

Claims

1.

2. Demands Innovative spray arm for dishwashers, characterized in that it comprises a spray arm support (1), a main spray arm (2), a front rotating spray arm (3) and a lateral oscillating spray arm (4), the main spray arm (2) being rotatably mounted on the spray arm support (1), a first water outlet (5) being disposed in the center of the upper face of the main spray arm (2), the two left and right lateral ends of the main spray arm (2) being respectively provided with a second water outlet, the front rotating spray arm (3) being rotatably mounted on the first water outlet (5), the first water outlet being in communication with the internal water circuit of the front rotating spray arm, a lateral oscillating spray arm (4) being rotatably mounted on said second water outlet,the second water outlet being in communication with the internal water circuit of the lateral oscillating spray arm, the lateral oscillating spray arm being able to oscillate relative to the main spray arm (2). Innovative spray arm for dishwashers according to claim 1, characterized in that the spray arm support (1) is provided with a fixed gear (6), a transmission mechanism is disposed between the lateral oscillating spray arm and the main spray arm, the transmission mechanism comprises a transmission element (7) and a movable gear (8), the transmission element (7) is slidably connected to the main spray arm, the transmission element (7) has an oblique groove (9) and a straight groove (10), the lateral oscillating spray arm (4) has a first insertion part (11) engaged in the oblique groove,The movable gear (8) is rotationally connected to the main spray arm (2) and meshes with the fixed gear. The movable gear includes a second insert part (12) engaged in the straight groove. The second insert part is eccentrically arranged on the movable gear. When the movable gear (8) rotates, the transmission element (7) performs a reciprocating rectilinear movement due to the engagement of the second insert part (12) in the straight groove (10), and the arm, Lateral oscillating spray (4) performs a reciprocating rotational movement relative to the main spray arm (2) under the effect of the engagement of the first insertion part (11) in the oblique groove (9).

3. Innovative spray arm for dishwasher according to claim 2, characterized in that a stop element (13) is disposed under the transmission element (7), the stop element is fixed to the main spray arm (2) in order to prevent the transmission element from detaching, the transmission element is provided with a positioning groove (14), the stop element has a positioning slide (15) cooperating with said positioning groove.

4. Innovative spray arm for dishwasher according to any one of claims 1 to 3, characterized in that the second water outlet is provided with a socket tube body (16), and the lateral oscillating spray arm (4) is provided with a channel (17) for the insertion of said socket tube body.

5. Innovative spray arm for dishwasher according to claim 4, characterized in that the socket tube body (16) is provided with one or more sealing joints.

6. Innovative spray arm for dishwasher according to any one of claims 1 to 3, characterized in that the first water outlet (5) is provided with a shoulder (18), the front rotating spray arm (3) includes a water inlet orifice (19) coupled to the first water outlet, and the water inlet orifice is surrounded by elastic hooks (20) cooperating with the shoulder.

7. Innovative spray arm for dishwasher according to claim 6, characterized in that the upper part of the front rotating spray arm (3) and the lateral oscillating spray arm (4) is provided with vertical spray nozzles (21) and / or inclined spray nozzles (22).

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