Cross-shaped spraying arm

Abstract

A cross-shaped spraying arm comprises a spraying arm body, a plurality of supporting arms arranged in a cross shape are arranged on the spraying arm body, spraying head assemblies are rotationally arranged on the supporting arms, and the supporting arms are communicated with the spraying head assemblies. The support arm comprises a long support arm and a short support arm which are perpendicular to each other, and the nozzle assembly is rotatably arranged on the short support arm; a plurality of annularly distributed first spraying holes are formed in the top of the spray head assembly, and a plurality of second spraying holes are formed in the peripheral side of the spray head assembly; a water flow channel is arranged in the spray head assembly and communicates with the first spraying holes and the second spraying holes. The cross-shaped spraying arm comprises the long supporting arm and the short supporting arm which are arranged in the cross shape, the spraying head assembly is arranged on the short supporting arm in a rotating mode and can provide strong water flow impact force, the cleaning range of the spraying head assembly can be enlarged through the rotating spraying head assembly, stains on tableware can be thoroughly washed away, and the spraying cleaning effect is improved. The dishwasher is particularly suitable for cleaning tableware with serious stains, the cleaning effect of the dishwasher is better, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray arms, in particular to a cross spray arm. Background Art

[0002] Chinese patent document CN208598334U, published on March 15, 2019, discloses a dishwasher spray structure and a dishwasher. The dishwasher spray structure includes a spray arm base and a spray arm. The end surface of the pipe of the spray arm base includes two centrally symmetrical spiral surfaces. The outer peripheral wall of the spray arm is provided with at least one rolling element capable of rolling along the spiral surfaces. This dishwasher spray arm is straight-line shaped, resulting in mediocre cleaning performance and often failing to clean heavily soiled dishes.

[0003] Therefore, further improvements are necessary. Utility Model Content

[0004] The purpose of the utility model is to provide a cross spray arm with simple structure, good cleaning effect, clean cleaning, high cleaning efficiency and strong practicality, so as to overcome the shortcomings of the prior art.

[0005] A cross spray arm designed for this purpose includes a spray arm body, on which are arranged a plurality of cross-shaped support arms. The feature is that a spray head assembly is rotatably arranged on the support arm, and the support arm is connected to the spray head assembly.

[0006] The support arm comprises a long support arm and a short support arm which are vertically arranged to each other, and the spray head assembly is rotatably arranged on the short support arm.

[0007] The top of the nozzle assembly is provided with a plurality of first spray holes distributed in an annular manner, and the peripheral side of the nozzle assembly is provided with a plurality of second spray holes.

[0008] A water flow channel is provided in the nozzle assembly, and the water flow channel is connected to the first spray hole and the second spray hole respectively.

[0009] There are multiple water flow channels, which are distributed in a spiral shape.

[0010] A first water outlet channel is provided in the short arm, and a plurality of through holes distributed in an annular pattern are provided on the top of the short arm. The first water outlet channel is connected to the water flow channel through the through holes.

[0011] A rotating shaft is provided on the short supporting arm, a rotating hole is provided on the nozzle assembly, and the nozzle assembly is rotatably mounted on the short supporting arm through the cooperation of the rotating shaft and the rotating hole.

[0012] A positioning protrusion is provided on the short support arm, a positioning groove is provided on the nozzle assembly, and the positioning protrusion is positioned and inserted into the positioning groove.

[0013] The nozzle assembly comprises an upper shell and a lower shell which cover each other. A plurality of spirally distributed guide ribs are arranged on the upper shell and the lower shell, and a water flow channel is formed between two adjacent guide ribs.

[0014] Several third spray holes are provided at the top of the short arm, a second water outlet channel is provided in the long arm, and several fourth spray holes are provided at the top of the long arm. The first water outlet channel is connected to the third spray holes, and the second water outlet channel is connected to the fourth spray holes; a water inlet channel is provided at the bottom of the spray arm body, and the water inlet channel is connected to the first water outlet channel and the second water outlet channel respectively.

[0015] The cross spray arm of the utility model includes a long arm and a short arm arranged in a cross shape. A nozzle assembly is rotatably arranged on the short arm. The nozzle assembly can provide a strong water flow impact force, and the rotating nozzle assembly can expand its cleaning range, which can thoroughly rinse away the stains on the tableware and improve the spray cleaning effect. It is particularly suitable for cleaning severely stained tableware, so that the cleaning effect of the dishwasher is better and the user experience is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the cross spray arm in one embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the exploded structure of the cross spray arm in one embodiment of the present utility model.

[0018] Figure 3 It is a cross-sectional view of a cross spray arm in one embodiment of the present utility model.

[0019] Figure 4 Schematic diagram of the overall structure of the nozzle assembly in one embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the overall structure of the nozzle assembly in another aspect of an embodiment of the present invention.

[0021] Figure 6 2 is a cross-sectional view of a nozzle assembly in one embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the exploded structure of the nozzle assembly and the rotating shaft in one embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 7 The cross spray arm comprises a spray arm body 1 , on which a plurality of support arms 2 arranged in a cross shape are arranged. A spray head assembly 3 is rotatably arranged on the support arm 2 , and the support arm 2 is connected to the spray head assembly 3 .

[0025] The support arm 2 includes a long support arm 4 and a short support arm 5 which are perpendicular to each other. The long support arm 4 and the short support arm 5 are symmetrically arranged on the spray arm body 1 , and the spray head assembly 3 is rotatably arranged on the top of the short support arm 5 .

[0026] A plurality of annularly distributed first spray holes 6 are provided on the top of the nozzle assembly 3, and a plurality of second spray holes 7 are provided on the peripheral side of the nozzle assembly 3. The spray holes are provided on the top and peripheral side of the nozzle assembly 3, so that the cleaning range of the nozzle assembly 3 is larger.

[0027] A water flow channel 8 is provided in the nozzle assembly 3 , and the water flow channel 8 is connected to the first spray hole 6 and the second spray hole 7 respectively.

[0028] There are multiple water flow channels 8 distributed in a spiral shape, so as to realize the spiral water discharge of the nozzle assembly 3 and make the water discharge of the nozzle assembly 3 more uniform.

[0029] A first water outlet channel 9 is provided in the short arm 5 , and a plurality of annular through holes 10 are provided on the top of the short arm 5 . The first water outlet channel 9 is connected to the water flow channel 8 through the through holes 10 .

[0030] A rotating shaft 11 is fixedly provided on the short arm 5, and a rotating hole 12 is provided on the nozzle assembly 3. The nozzle assembly 3 is installed on the short arm 5 through the coordinated rotation of the rotating shaft 11 and the rotating hole 12. When the water flows into the water flow channel 8, the water flows to push the nozzle assembly 3 to rotate.

[0031] A positioning protrusion 13 is provided on the top of the short support arm 5 , and a positioning groove 14 is provided on the bottom of the nozzle assembly 3 . The positioning protrusion 13 is positioned and inserted into the positioning groove 14 .

[0032] A positioning head 22 is provided on the top of the rotating shaft 11 , and a positioning surface 23 is provided on the top side of the rotating hole 12 . The positioning surface 23 presses upward against the positioning head 22 to prevent the nozzle assembly 3 from escaping upward from the short support arm 5 .

[0033] The nozzle assembly 3 includes an upper shell 15 and a lower shell 16 that cover each other. The upper shell 15 and the lower shell 16 are welded together by ultrasonic welding. A plurality of spirally distributed guide ribs 17 are provided on the upper shell 15 and the lower shell 16, and a water flow channel 8 is formed between adjacent guide ribs 17.

[0034] A plurality of third spray holes 18 are provided at the top of the short arm 5, a second water outlet channel 19 is provided in the long arm 4, and a plurality of fourth spray holes 20 are provided at the top of the long arm 4. The first water outlet channel 9 is connected to the third spray hole 18, and the second water outlet channel 19 is connected to the fourth spray hole 20; a water inlet channel 21 is provided at the bottom of the spray arm body 1, and the water inlet channel 21 is connected to the first water outlet channel 9 and the second water outlet channel 19 respectively; the water flows into the first water outlet channel 9 and the second water outlet channel 19 respectively through the water inlet channel 21, and a part of the water flow in the first water outlet channel 9 enters the water flow channel 8 of the nozzle assembly 3, and then is sprayed out through the first spray hole 6 and the second spray hole 7, and another part of the water flow in the first water outlet channel 9 is sprayed out through the third spray hole 18, and the water flow in the second water outlet channel 19 is sprayed out through the fourth spray hole 20.

[0035] The above is a preferred embodiment of the present invention, which illustrates and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A cross spray arm, comprising a spray arm body (1), on which a plurality of arms (2) arranged in a cross shape are provided, characterized in that: A nozzle assembly (3) is rotatably provided on the support arm (2), and the support arm (2) is connected to the nozzle assembly (3).

2. The cross spray arm according to claim 1, characterized in that: The support arm (2) comprises a long support arm (4) and a short support arm (5) which are arranged perpendicular to each other, and the nozzle assembly (3) is rotatably arranged on the short support arm (5).

3. The cross spray arm according to claim 2, characterized in that: A plurality of annularly distributed first spray holes (6) are provided on the top of the spray head assembly (3), and a plurality of second spray holes (7) are provided on the circumferential side of the spray head assembly (3).

4. The cross spray arm according to claim 3, characterized in that: A water flow channel (8) is provided in the nozzle assembly (3), and the water flow channel (8) is connected to the first spray hole (6) and the second spray hole (7) respectively.

5. The cross spray arm according to claim 4, characterized in that: A plurality of water flow channels (8) are provided and distributed in a spiral shape.

6. The cross spray arm according to claim 4, characterized in that: A first water outlet channel (9) is provided in the short support arm (5), and a plurality of annularly distributed through holes (10) are provided on the top of the short support arm (5). The first water outlet channel (9) is connected to the water flow channel (8) through the through holes (10).

7. The cross spray arm according to claim 2, characterized in that: A rotating shaft (11) is provided on the short support arm (5), a rotating hole (12) is provided on the nozzle assembly (3), and the nozzle assembly (3) is rotatably mounted on the short support arm (5) through the cooperation of the rotating shaft (11) and the rotating hole (12).

8. The cross spray arm according to claim 7, characterized in that: A positioning protrusion (13) is provided on the short support arm (5), a positioning groove (14) is provided on the nozzle assembly (3), and the positioning protrusion (13) is positioned and inserted into the positioning groove (14).

9. The cross spray arm according to claim 5, characterized in that: The nozzle assembly (3) comprises an upper shell (15) and a lower shell (16) that cover each other. A plurality of spirally distributed guide ribs (17) are provided on the upper shell (15) and the lower shell (16), and a water flow channel (8) is formed between two adjacent guide ribs (17).

10. The cross spray arm according to claim 6, characterized in that: A plurality of third spray holes (18) are provided on the top of the short arm (5), a second water outlet channel (19) is provided in the long arm (4), a plurality of fourth spray holes (20) are provided on the top of the long arm (4), the first water outlet channel (9) is connected to the third spray hole (18), and the second water outlet channel (19) is connected to the fourth spray hole (20); a water inlet channel (21) is provided at the bottom of the spray arm body (1), and the water inlet channel (21) is connected to the first water outlet channel (9) and the second water outlet channel (19), respectively.

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