Multi-angle spray arm for dishwasher

Abstract

The present utility model relates to a multi-angle spray arm for a dishwasher, characterized in that it comprises a spray arm support, a main spray arm, a first spray arm and a second spray arm, the main spray arm being rotatably mounted on the spray arm support, a first water outlet being disposed above the first end of the main spray arm, the first spray arm being rotatably mounted on said first water outlet and capable of rotating horizontally relative to the main spray arm, the first water outlet being in communication with the internal water circuit of the first spray arm; a second water outlet being disposed on the lateral face of the second end of the main spray arm,The second spray arm is rotatably mounted on the second water outlet and is capable of oscillating relative to the main spray arm. The second water outlet is connected to the internal water circuit of the second spray arm. The spray arm assembly comprises, in addition to the main spray arm, a first spray arm and a second spray arm. The first spray arm can rotate horizontally relative to the main spray arm, while the second spray arm can oscillate alternately relative to the main spray arm. Thus, during the rotation of the main spray arm, its spraying area is indirectly increased, thereby resolving the problem of dead zones in spraying due to the arrangement of the dishes.

Description

Title of the invention: Multi-angle spray arm for dishwasher technical field

[0001] The present utility model relates to a multi-angle spray arm for a saddle-type dishwasher. PRIOR 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 purpose of the present utility model is to remedy the aforementioned problems by proposing a multi-angle spray arm for dishwashers, which allows a large spraying area to be covered and contributes significantly to the complete cleaning of the dishes.

[0005] To achieve this objective, the present utility model proposes a multi-angle spray arm for a dishwasher, characterized in that it comprises a spray arm support, a main spray arm, a first spray arm, and a second spray arm, the main spray arm being rotatably mounted on the spray arm support, a first water outlet being disposed above the first end of the main spray arm, the first spray arm being rotatably mounted on said first water outlet and capable of rotating horizontally relative to the main spray arm, the first water outlet being in communication with the internal water circuit of the first spray arm; a second water outlet being arranged on the lateral face of the second end of the main spray arm, the second spray arm being rotatably mounted on said second water outlet and capable of oscillating relative to the main spray arm, the second water outlet being in communication with the internal water circuit of the second spray arm.

[0006] In one or more embodiments, the spray arm support comprises a fixed gear, the main spray arm comprises a transmission element and a movable gear, the transmission element is slidably connected to the main spray arm, said transmission element has an oblique groove and a straight groove, the second spray arm comprises a first insert portion that engages in the oblique groove, the movable gear is rotatably mounted on the main spray arm and meshes with the fixed gear, said movable gear comprises a second insert portion that engages in the straight groove, the second insert portion is eccentrically arranged on the movable gear, so that, when said movable gear rotates,The transmission element performs a reciprocating linear movement due to the engagement of the second insertion part in the straight groove, and the second spray arm performs a reciprocating rotary movement relative to the main spray arm due to the engagement of the first insertion 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 second 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 outer periphery of the first water outlet includes a shoulder, the first 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 first spray arm and the second 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, in addition to the main spray arm, a first spray arm and a second spray arm for spraying, the first spray arm being able to rotate horizontally relative to the main spray arm, the second spray arm being able to oscillate alternately relative to the main spray arm, so that the spraying surface of the main spray arm is indirectly increased during the operating rotation of the main spray arm, which solves the problem of dead spraying areas due to the arrangement of the dishes. 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 first spray arm and second spray arm according to an example embodiment of the present utility model;

[0015] Fig. 3 shows a schematic view of the structure of Fig. 2 from another angle. 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 a multi-angle spray arm for a dishwasher, comprising a spray arm support 1, a main spray arm 2, a first spray arm 3 and a second spray arm 4. The main spray arm 2 is rotatably mounted on the spray arm support, a first water outlet 5 is disposed above the first end of the main spray arm 2, the first spray arm 3 is rotatably mounted on the first water outlet and can rotate horizontally relative to the main spray arm 2. The first water outlet 5 communicates with the internal water circuit of the first spray arm 3.Water entering from the main spray arm 2 into the first spray arm, under the pressure and impact of the water flow, allows the first spray arm to rotate relative to the main spray arm 2. A second water outlet is arranged on the lateral face of the second end of the arm. The main spray arm 2. The second spray arm 4 is rotatably mounted on the second water outlet and can oscillate relative to the main spray arm 2. The second water outlet communicates with the internal water circuit of the second spray arm 4. The water entering from the main spray arm 2 into the second spray arm 4, under the pressure and impact of the water flow, allows the second spray arm 4 to rotate relative to the main spray arm 2, thus indirectly increasing the spraying area of ​​the arm, and solving the problem of dead spraying zones caused by the placement of the dishes.

[0018] The spray arm support#! is provided with a fixed gear#6. The main spray arm#2 is provided with a transmission element#? and a movable gear#8. The transmission element#? is slidably connected to the main spray arm#2. The transmission element#? has an oblique groove#9 and a straight groove#10. The second spray arm## includes a first insert portion#! 1 which engages in the oblique groove. The movable gear#8 is rotatably mounted on the main spray arm#2 and meshes with the fixed gear#6. The movable gear#8 is provided with a second insert portion#12 which engages in the straight groove. The second insert portion# is eccentrically positioned on the movable gear#8.When the movable gear #8 rotates, the transmission element #? undergoes a reciprocating linear motion due to the engagement of the second insert part #12 in the straight groove #10. The second spray arm ## undergoes 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. More specifically, when water enters the main spray arm #2, the main spray arm #2 is set in rotation by the pressure of the water flow. During the rotation of the main spray arm #2, the movable gear #8 also rotates, due to the meshing of the movable gear #8 with the fixed gear #6.When the second insert part on the movable gear #8 moves from its initial position to a 180-degree position, it pushes the transmission element #? forward. Then, when the second insert part moves from the 180-degree position to a 360-degree position, it pulls the transmission element #? backward. The rotation of the movable gear #8 thus enables the reciprocating motion of the transmission element #?. During this reciprocating motion of the transmission element #?, the first insert part moves alternately to the ends of the oblique groove, which allows the second spray arm ## to... to perform an alternating oscillating (rotating) movement relative to the main spray arm#!.

[0019] A stop element 13 is disposed under the transmission element 7. The stop element 13 is fixed to the main spray arm 2 to prevent the transmission element 7 from detaching. The transmission element 7 has a positioning groove 14, and the stop element 13 includes a positioning slide 15 that engages in the positioning groove. The stop element 13 is fixed to the main spray arm 2 by screws. The interaction between the positioning groove and the positioning slide ensures the reciprocating linear movement of the transmission element 7.

[0020] The second water outlet is provided with a socket tube body 16, and the second 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 joints to ensure sealing.

[0021] The outer periphery of the first water outlet 5 is provided with a shoulder 18. The first 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 that cooperate with the shoulder. By means of the shoulder attachment with these elastic hooks, the first spray arm is fixed to the main spray arm 2, without affecting the rotation of the first spray arm.

[0022] The upper part of the first spray arm 3 and the second spray arm 4 is provided with vertical spray nozzles 21 and / or inclined spray nozzles 22. The arrangement of nozzles oriented in different directions and angles allows for more efficient cleaning 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 Spray arm for multi-angle spray dishwasher, characterized in that it comprises a spray arm support (1), a main spray arm (2), a first spray arm (3) and a second spray arm (4), the main spray arm being rotatably mounted on the spray arm support, a first water outlet (5) being disposed above the first end of the main spray arm (2), the first spray arm (3) being rotatably mounted on said first water outlet and capable of rotating horizontally relative to the main spray arm (2), the first water outlet (5) being in communication with the internal water circuit of the first spray arm (3);a second water outlet being disposed on the lateral face of the second end of the main spray arm (2), the second spray arm (4) being rotatably mounted on said second water outlet and capable of oscillating relative to the main spray arm (2), the second water outlet being in communication with the internal water circuit of the second spray arm (4). A spray arm for a multi-angle spray dishwasher according to claim 1, characterized in that the spray arm support (1) comprises a fixed gear (6), the main spray arm (2) comprises a transmission element (7) and a movable gear (8), the transmission element (7) is slidably connected to the main spray arm (2), said transmission element (7) has an oblique groove (9) and a straight groove (10), the second spray arm (4) comprises a first insert portion (11) which engages in the oblique groove, the movable gear (8) is rotatably mounted on the main spray arm (2) and meshes with the fixed gear (6), said movable gear (8) comprises a second insert portion (12) which engages in the straight groove, the second insert portion is eccentrically arranged on the movable gear (8), such that,When said movable gear (8) rotates, the transmission element (7) undergoes a reciprocating rectilinear motion due to the engagement of the second insert part (12) in the straight groove (10), and that the second, spray arm (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. Spray arm for multi-angle spray dishwasher according to claim 2, characterized in that, a stop element (13) is disposed under the transmission element (7), the stop element (13) is fixed to the main spray arm (2) in order to prevent the transmission element (7) from detaching, the transmission element (7) is provided with a positioning groove (14), the stop element (13) has a positioning slide (15) cooperating with said positioning groove.

4. Spray arm for multi-angle spray 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), the second spray arm (4) being provided with a channel (17) for the insertion of said socket tube body.

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

6. Multi-angle spray arm for a saddle-type spraying dishwasher according to any one of claims 1 to 3, characterized in that the outer periphery of the first water outlet (5) includes a shoulder (18), the first 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. Spray arm for multi-angle spraying dishwasher according to claim 6, characterized in that the upper part of the first spray arm (3) and the second spray arm (4) is provided with vertical spray nozzles (21) and / or inclined spray nozzles (22).

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