Spraying arm structure of dish washing machine and dish washing machine

Abstract

The utility model discloses a spraying arm structure of a dish-washing machine and the dish-washing machine. The spraying arm structure of the dish-washing machine comprises a water supply structure connected with a water path of the dish-washing machine; the main spraying arm comprises a main spraying arm body and a main spraying hole formed in the main spraying arm body, and the main spraying arm body communicates with the water supply structure; the main spraying arm body is rotationally connected with the water supply structure through the rotating shaft assembly; the worm gear is mounted on the main spraying arm body and can rotate by taking the rotating shaft assembly as an axis; the auxiliary spraying arm comprises a first auxiliary spraying arm body, and a plurality of auxiliary spraying holes are formed in the first auxiliary spraying arm body; the first auxiliary spraying arm body communicates with the water supply structure and can rotate in the vertical direction relative to the water supply structure. And the worm is arranged on the first auxiliary spraying arm body in a sleeving manner and is in meshing transmission connection with the worm gear.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a spray arm structure for a dishwasher and the dishwasher itself. Background Technology

[0002] With the improvement of living standards, more and more families are now equipped with dishwashers. Household dishwashers usually use the rinsing action of spray water jets, combined with washing consumables, heating and other auxiliary means, to clean the contaminants on the tableware.

[0003] However, due to the low water pressure in the middle water channel of the dishwasher, and the fact that most of the spray arms in the middle of the dishwasher use a single circular spray method with only a single rinsing angle and position, many dead corners cannot be rinsed.

[0004] Therefore, there is an urgent need for a dishwasher spray arm structure to solve the above problems. Utility Model Content

[0005] This invention aims to at least partially solve one of the problems existing in the prior art. To this end, this invention proposes a spray arm structure for a dishwasher that can spray water jets at different angles, reduce dead angles in rinsing, and improve the washing effect.

[0006] The above objectives are achieved through the following technical solutions:

[0007] A dishwasher spray arm structure includes:

[0008] Water supply structure, connected to the dishwasher's water circuit;

[0009] The main spray arm includes a main spray arm body and a main spray hole opened on the main spray arm body, and the main spray arm body is connected to the water supply structure.

[0010] A rotating shaft assembly is provided, wherein the main spray arm body is rotatably connected to the water supply structure via the rotating shaft assembly.

[0011] A worm gear is mounted on the main spray arm body and can rotate about the rotating shaft assembly as its axis.

[0012] The auxiliary spray arm includes a first auxiliary spray arm body, on which a plurality of auxiliary spray holes are provided; the first auxiliary spray arm body is connected to the water supply structure and is able to rotate relative to the water supply structure in the vertical direction.

[0013] A worm gear is sleeved on the first auxiliary spray arm body, and the worm gear is located on one side of the worm wheel and is meshed with the worm wheel for transmission.

[0014] Optionally, the rotation ratio of the worm gear to the worm is 10-20.

[0015] Optionally, the water supply structure includes a water supply pipe and a connecting pipe. The water supply pipe extends in a front-to-back direction. The rear end of the water supply pipe is connected to the water circuit of the dishwasher and the connecting pipe. The front end of the water supply pipe is connected to the main spray arm body. The first auxiliary spray arm body is connected to the water supply pipe through the connecting pipe.

[0016] Optionally, the auxiliary spray arm further includes a second auxiliary spray arm body, on which a plurality of auxiliary spray holes are provided. Both the first and second auxiliary spray arm bodies extend along the front-to-back direction and are disposed on one side of the water supply pipe. The first and second auxiliary spray arm bodies are connected by the worm gear.

[0017] Optionally, the water supply pipe has a first water outlet at its front end and a water inlet and a second water outlet at its rear end. The first water outlet is connected to the main spray arm body, the second water outlet is connected to the connecting pipe, and the water inlet is connected to the water circuit of the dishwasher.

[0018] Optionally, the worm gear includes a worm gear body, teeth disposed on the outer periphery of the worm gear body, a mounting hole disposed in the middle of the worm gear body, and a first connecting hole disposed on the lower side of the worm gear body. A second connecting hole corresponding to the first connecting hole is provided on the upper side of the main spray arm body. The worm gear body and the main spray arm body are connected by screws passing through the first connecting hole and the second connecting hole. The lower part of the rotating shaft assembly is inserted into the mounting hole and engaged with the main spray arm body, and the upper part of the rotating shaft assembly is engaged with the first water outlet.

[0019] Optionally, two sets of auxiliary spray arms are provided, with one auxiliary spray arm on each of the left and right sides of the water supply structure.

[0020] Another aspect of this utility model provides a dishwasher, including a dish rack and the aforementioned dishwasher spray arm structure, the spray arm structure being installed on the lower side of the dish rack.

[0021] Optionally, the spray arm structure further includes a rotating support structure, which includes a first rotating support seat and a second rotating support seat mounted on the basket. The first auxiliary spray arm body is rotatably connected to the first rotating support seat, and the second auxiliary spray arm body is rotatably connected to the second rotating support seat.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] The dishwasher spray arm structure provided by this utility model includes a water supply structure, a main spray arm, a rotating shaft assembly, a worm gear, a secondary spray arm, and a worm. The water supply structure is connected to the water circuit of the dishwasher. The main spray arm includes a main spray arm body and main spray holes formed on the main spray arm body, and the main spray arm body is connected to the water supply structure. The main spray arm body is rotatably connected to the water supply structure through the rotating shaft assembly. The worm gear is mounted on the main spray arm body and can rotate about the rotating shaft assembly as its axis. The secondary spray arm includes a first secondary spray arm body, on which multiple secondary spray holes are formed; the first secondary spray arm body is connected to the water supply structure and can rotate vertically relative to the water supply structure. The worm gear is sleeved on the first secondary spray arm body and meshes with the worm gear for transmission. Water flows from the water supply structure to the main spray arm and the auxiliary spray arm, and is sprayed out from the main spray hole of the main spray arm body and the auxiliary spray hole of the first auxiliary spray arm body. The water flow from the main spray hole drives the main spray arm body to rotate, which in turn drives the worm gear installed on the main spray arm body to rotate. The worm gear drives the worm to rotate, which in turn drives the first auxiliary spray arm body connected to the worm to rotate. Since the rotation direction of the worm and the rotation direction of the worm gear are at an angle (usually 90°), there is also an angle between the rotation direction of the main spray arm body and the rotation direction of the first auxiliary spray arm body. This creates an angle between the spray directions of the main spray hole and the auxiliary spray hole, allowing the dishes in the dishwasher to be sprayed with water at different angles, resulting in a better cleaning effect. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the spray arm structure of the dishwasher provided in a specific embodiment of this utility model;

[0025] Figure 2 yes Figure 1 Exploded view;

[0026] Figure 3 This is a schematic diagram of the spray arm structure of the dishwasher provided in a specific embodiment of the present invention installed on the underside of the dishwasher's basket;

[0027] Figure 4 This is a three-dimensional structural schematic diagram of the turbine of the spray arm structure of the dishwasher provided in a specific embodiment of this utility model;

[0028] Figure 5 yes Figure 3 A sectional view;

[0029] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0030] In the picture:

[0031] 1. Secondary spray arm; 11. First secondary spray arm body; 12. Secondary spray arm body; 13. Secondary spray nozzle;

[0032] 2. Water supply structure; 21. Water supply pipe; 22. Connecting pipe; 23. Second water outlet; 24. Water inlet; 25. First water outlet;

[0033] 31. Worm gear; 311. Worm gear body; 312. First connecting hole; 310. Mounting hole; 313. Gear; 32. Worm;

[0034] 4. Main spray arm; 41. Main spray arm body; 411. Main spray nozzle; 42. Second connecting hole;

[0035] 5. Rotary shaft assembly;

[0036] 6. Rotary support structure; 61. First rotary support seat; 62. Second rotary support seat;

[0037] 7. Bowl basket. Detailed Implementation

[0038] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific implementation of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solution claimed by the present invention.

[0039] Please refer to Figures 1-5This utility model provides a spray arm structure for a dishwasher, including a water supply structure 2, a main spray arm 4, a rotating shaft assembly 5, a worm gear 31, a secondary spray arm 1, and a worm 32. The water supply structure 2 is connected to the water circuit of the dishwasher. The main spray arm 4 includes a main spray arm body 41 and main spray holes 411 formed on the main spray arm body 41, and the main spray arm body 41 is connected to the water supply structure 2. The rotating shaft assembly 5 rotatably connects the main spray arm body 41 to the water supply structure 2. The worm gear 31 is mounted on the main spray arm body 41 and can rotate about the rotating shaft assembly 5. The secondary spray arm 1 includes a first secondary spray arm body 11, on which multiple secondary spray holes 13 are formed. The first secondary spray arm body 11 is connected to the water supply structure 2 and can rotate vertically relative to the water supply structure 2. The worm 32 is sleeved on the first secondary spray arm body 11, and the worm 32 is located on one side of the worm gear 31 and meshes with the worm gear 31 for transmission. Water flows from the water supply structure 2 to the main spray arm 4 and the auxiliary spray arm 1, and is sprayed out from the main spray hole 411 of the main spray arm body 41 and the auxiliary spray hole 13 of the first auxiliary spray arm body 11. The water flow from the main spray hole 411 drives the main spray arm body 41 to rotate, thereby driving the worm gear 31 installed on the main spray arm body 41 to rotate. The worm gear 31 drives the worm 32 to rotate, thereby driving the first auxiliary spray arm body 11 connected to the worm 32 to rotate. Since the rotation direction of the worm 32 and the rotation direction of the worm gear 31 have an angle (generally 90°), there is also an angle between the rotation direction of the main spray arm body 41 and the rotation direction of the first auxiliary spray arm body 11. This results in an angle between the spray directions of the main spray hole 411 and the auxiliary spray hole 13, allowing the dishes in the dishwasher to be sprayed with water at different angles, resulting in a better cleaning effect.

[0040] Optionally, the rotation ratio of the worm gear 31 to the worm 32 is 10-20, so that the first auxiliary spray arm body 11 can rotate with the main spray arm body 41 at a faster speed to improve the cleaning effect.

[0041] For example, in this embodiment, the transmission ratio between the worm gear 31 and the worm 32 is 12.

[0042] Optionally, the water supply structure 2 includes a water supply pipe 21 and a connecting pipe 22. The water supply pipe 21 extends in the front-to-back direction. The rear end of the water supply pipe 21 is connected to the water circuit of the dishwasher and the connecting pipe 22. The front end of the water supply pipe 21 is connected to the main spray arm body 41. The first auxiliary spray arm body 11 is connected to the water supply pipe 21 through the connecting pipe 22, so that the water supply structure 2 can supply water to the main spray arm 4 and the auxiliary spray arm 1 at the same time.

[0043] Optionally, the auxiliary spray arm 1 further includes a second auxiliary spray arm body 12, which has multiple auxiliary spray holes 13. Both the first auxiliary spray arm body 11 and the second auxiliary spray arm body 12 extend along the front-to-back direction and are disposed on one side of the water supply pipe 21. The first auxiliary spray arm body 11 and the second auxiliary spray arm body 12 are connected by a worm gear 32. By configuring the auxiliary spray arm 1 as the first auxiliary spray arm body 11 and the second auxiliary spray arm body 12, demolding is facilitated.

[0044] Optionally, the front end of the water supply pipe 21 is provided with a first water outlet 25, and the rear end of the water supply pipe 21 is provided with a water inlet 24 and a second water outlet 23. The first water outlet 25 is connected to the main spray arm body 41, the second water outlet 23 is connected to the connecting pipe 22, and the water inlet 24 is connected to the water circuit of the dishwasher.

[0045] Optionally, the worm gear 31 includes a worm gear body 311, a tooth 313 disposed on the outer periphery of the worm gear body 311, a mounting hole 310 disposed in the middle of the worm gear body 311, and a first connecting hole 312 disposed on the lower side of the worm gear body 311. The tooth 313 meshes with the threaded teeth on the worm 3232 for transmission. A second connecting hole 42 corresponding to the first connecting hole 312 is opened on the upper side of the main spray arm body 41. The worm gear body 311 and the main spray arm body 41 are connected by screws passing through the first connecting hole 312 and the second connecting hole 42. The lower part of the rotating shaft assembly 5 is inserted into the mounting hole 310 and snapped into the main spray arm body 41. The upper part of the rotating shaft assembly 5 is snapped into the first water outlet 25.

[0046] It should be noted that the rotating shaft assembly 5 is existing technology. As long as it can achieve the rotational connection between the main spray arm 4 and the first water outlet 25, it will not be described in detail here.

[0047] Optionally, two sets of auxiliary spray arms 1 are provided, with one set of spray arms 1 on the left and right sides of the water supply structure 2, so as to achieve further uniform spraying and washing of the bowl basket 7.

[0048] Another aspect of this utility model provides a dishwasher, including a dish basket 7 and the aforementioned dishwasher spray arm structure, the spray arm structure being installed on the lower side of the dish basket 7.

[0049] Optionally, the spray arm structure further includes a rotating support structure 6. The rotating support structure 6 includes a first rotating support seat 61 and a second rotating support seat 62 mounted on the basket 7. The first auxiliary spray arm body 11 is rotatably connected to the first rotating support seat 61, and the second auxiliary spray arm body 12 is rotatably connected to the second rotating support seat 62. By setting the rotating support structure 6, the auxiliary spray arm 1 is supported, ensuring that the auxiliary spray arm 1 can rotate stably.

[0050] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A structure of a spray arm of a dishwasher, characterized in that, The utility model relates to a dish washing machine, including: Water supply structure (2) is connected with the water channel of dish washing machine; Main spray arm (4) including main spray arm body (41) and the main spray hole (411) of being set on main spray arm body (41), main spray arm body (41) is communicated with water supply structure (2); Rotary shaft assembly (5), main spray arm body (41) is rotatably connected with water supply structure (2) through rotary shaft assembly (5); Worm wheel (31) is installed on main spray arm body (41) and can rotate around rotary shaft assembly (5); Sub spray arm (1) including first sub spray arm body (11), first sub spray arm body (11) is set with multiple sub spray holes (13);First sub spray arm body (11) is communicated with water supply structure (2) and can rotate in vertical direction relative to water supply structure (2); Worm (32) is set on first sub spray arm body (11), worm (32) is located on one side of worm wheel (31) and is meshed with worm wheel (31) transmission connection.

2. The spray arm structure of the dish washer according to claim 1, wherein, The rotation ratio of worm wheel (31) and worm (32) is 10-20. 3.The dish washer spray arm structure according to claim 1, characterized in that, Water supply structure (2) includes water supply pipe (21) and connecting pipe (22), water supply pipe (21) is set along front-back direction, the rear end of water supply pipe (21) is connected with the water channel of dish washing machine and connecting pipe (22), the front end of water supply pipe (21) is connected with main spray arm body (41), first sub spray arm body (11) is connected with water supply pipe (21) through connecting pipe (22). 4.The dish washer spray arm structure according to claim 3, characterized in that, Sub spray arm (1) also includes second sub spray arm body (12), second sub spray arm body (12) is set with multiple sub spray holes (13), first sub spray arm body (11) and second sub spray arm body (12) are set along front-back direction on one side of water supply pipe (21), first sub spray arm body (11) and second sub spray arm body (12) are connected through worm (32).

5. The spray arm structure of the dish washer according to claim 3, wherein, The front end of water supply pipe (21) is provided with first water outlet (25), the rear part of water supply pipe (21) is provided with water inlet (24) and second water outlet (23), first water outlet (25) is connected with main spray arm body (41), second water outlet (23) is connected with connecting pipe (22), water inlet (24) is connected with the water channel of dish washing machine. 6.The spray arm structure of a dish washer according to claim 5, wherein, The worm gear (31) comprises a worm gear body (311), a meshing tooth (313) arranged on the outer circumferential side of the worm gear body (311), a mounting hole (310) arranged in the middle of the worm gear body (311), and a first connecting hole (312) arranged on the lower side of the worm gear body (311), the upper side of the main spray arm body (41) is provided with a second connecting hole (42) corresponding to the first connecting hole (312), the worm gear body (311) and the main spray arm body (41) are connected through the first connecting hole (312) and the second connecting hole (42) by a screw, the lower part of the rotating shaft assembly (5) is inserted into the mounting hole (310) and is clamped with the main spray arm body (41), and the upper part of the rotating shaft assembly (5) is clamped with the first water outlet (25).

7. The spray arm structure of a dishwasher according to any one of claims 1 to 6, characterized in that, The auxiliary spray arm (1) is provided in two groups, and one auxiliary spray arm (1) is arranged on the left side and the right side of the water supply structure (2).

8. A dishwasher, characterized in that The spray arm structure of the dishwasher comprises a bowl basket (7) and the spray arm structure of any one of claims 1-7, and the spray arm structure is mounted on the lower side of the bowl basket (7).

9. The warewash machine of claim 8, wherein, The auxiliary spray arm (1) further comprises a second auxiliary spray arm body (12), and the spray arm structure further comprises a rotating support structure (6), the rotating support structure (6) comprises a first rotating support seat (61) and a second rotating support seat (62) mounted on the bowl basket (7), the first auxiliary spray arm body (11) is rotationally connected with the first rotating support seat (61), and the second auxiliary spray arm body (12) is rotationally connected with the second rotating support seat (62).

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