Spraying arm structure of dish washing machine and dish washing machine

Abstract

The spraying arm structure of the dish-washing machine comprises a water supply structure, a spraying arm structure, a spraying arm structure, a spraying arm structure and a spraying arm structure, the rotating shaft assembly is connected with the water supply structure; the main spraying arm comprises a main spraying arm body and a plurality of main spraying holes formed in the main spraying arm body, the middle of the main spraying arm body is rotationally connected with the water supply structure through a rotating shaft assembly, and the main spraying arm body can rotate on a first plane relative to the water supply structure; the transmission part is in transmission connection with the main spraying arm, and when the main spraying arm rotates, the transmission part can be driven to do linear reciprocating motion; the auxiliary spraying arm comprises a first auxiliary spraying arm body, a plurality of auxiliary spraying holes are formed in the first auxiliary spraying arm body, the first auxiliary spraying arm body is installed on the transmission part and rotationally connected with the water supply structure, the first auxiliary spraying arm body can rotate on a second plane relative to the water supply structure, and an included angle is formed between the first plane and the second plane; the first auxiliary gushing arm body is in clearance fit connection with the transmission part.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a spray arm structure of a dishwasher and the dishwasher. Background Art

[0002] With the improvement of living standards, more and more families in the market are equipped with dishwashers. Household dishwashers usually use the flushing effect of spray water columns, combined with auxiliary means such as washing consumables and heating, to achieve the purpose of cleaning contaminants on tableware.

[0003] However, due to the low water pressure in the middle water channel of the dishwasher, and the fact that the middle spray arm of the dishwasher mostly adopts a single circular spray mode, there is only a single flushing angle and position, resulting in many dead corners that cannot be flushed.

[0004] Therefore, there is an urgent need for a spray arm structure of a dishwasher to solve the above problems. Summary of the invention

[0005] The present invention aims to solve at least one of the problems existing in the existing related technologies to a certain extent. To this end, the present invention proposes a spray arm structure of a dishwasher, which can spray water columns at different angles, reduce flushing dead angles, and improve washing effects.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A spray arm structure of a dishwasher, comprising:

[0008] A water supply structure connected to the water circuit of the dishwasher;

[0009] A rotating shaft assembly connected to the water supply structure;

[0010] A main spray arm, the main spray arm comprising a main spray arm body and a plurality of main spray holes provided on the main spray arm body, the middle portion of the main spray arm body being rotatably connected to the water supply structure via the rotating shaft assembly, and the main spray arm body being capable of rotating on a first plane relative to the water supply structure;

[0011] A transmission member is connected to the main spray arm in a transmission manner, and when the main spray arm rotates, it can drive the transmission member to reciprocate along a straight line;

[0012] The auxiliary spray arm includes a first auxiliary spray arm body, a plurality of auxiliary spray holes are opened on the first auxiliary spray arm body, the first auxiliary spray arm body is installed on the transmission member and is rotatably connected to the water supply structure, the first auxiliary spray arm body can rotate on a second plane relative to the water supply structure, there is an angle between the first plane and the second plane, and the first auxiliary spray arm body is connected with the transmission member with a clearance fit.

[0013] Optionally, the transmission member includes a transmission member body, the transmission member body is provided with a guide hole and one of a waist-shaped slot hole and a transmission part, the guide hole is opened in the middle part of the transmission member body, the waist-shaped slot hole is opened on one side of the guide hole, the guide hole is sleeved on the rotating shaft assembly, the first auxiliary spray arm body is installed at the end of the transmission member body, the main spray arm body is provided with the other of the waist-shaped slot hole and the transmission part, the transmission part is inserted into the waist-shaped slot hole and can slide along the waist-shaped slot hole.

[0014] Optionally, the water supply structure is arranged on the upper side of the main spray arm body, and the transmission member body is located between the water supply structure and the main spray arm body.

[0015] Optionally, one of a first clamping hole and a first clamping buckle is provided at the end of the transmission member body, the other of the first clamping hole and the first clamping buckle is provided on the first auxiliary spray arm body, and the first clamping buckle is clamped into the first clamping hole.

[0016] Optionally, the auxiliary spray arm also includes a second auxiliary spray arm body and a connecting piece, the first auxiliary spray arm body and the second auxiliary spray arm body are connected by the connecting piece, the second auxiliary spray arm body is arranged at the front end of the first auxiliary spray arm body, and a plurality of auxiliary spray holes are opened on the second auxiliary spray arm body.

[0017] Optionally, the connector includes a connector body, and the first buckle is arranged on the connector body.

[0018] Optionally, an avoidance groove is further provided on the connector body, and the first buckle is arranged in the avoidance groove.

[0019] Optionally, the main spray arm body is extended along a horizontal plane, the water supply structure includes a water supply pipe and a connecting pipe connected to each other, the water supply pipe and the first auxiliary spray arm body are extended along the front-to-back direction, the first auxiliary spray arm body is connected to the water supply pipe through the connecting pipe, and the transmission member is arranged along the left-right direction.

[0020] Optionally, two groups of auxiliary spray arms are provided, and one group of auxiliary spray arms is provided on the left side and the right side of the water supply pipe.

[0021] Another aspect of the present invention provides a dishwasher, comprising a bowl basket and the above-mentioned spray arm structure of the dishwasher, wherein the spray arm structure is arranged at the lower side of the bowl basket.

[0022] Optionally, a limit block is further included, wherein the limit block is installed on the bowl basket, one end of the first auxiliary spray arm body is rotatably connected to the water supply structure, and the other end of the first auxiliary spray arm body is rotatably connected to the limit block.

[0023] Optionally, the limit block includes a limit block body, a limit groove is provided on the upper side of the limit block body, and the auxiliary spray arm also includes a gasket mounted on the first auxiliary spray arm body, and the gasket is located in the limit groove.

[0024] Optionally, a second buckle is provided at one end of the limit block body, a first slot with an upward opening is provided at the other end of the limit block body, a second slot with an upward opening is provided on the second buckle, one of the vertical basket rods of the bowl basket is clamped at the lower side of the second buckle, and one of the horizontal basket rods of the bowl basket is clamped in the first slot and the second slot.

[0025] Compared with the prior art, the present invention has at least the following beneficial effects:

[0026] The spray arm structure of the dishwasher provided by the present invention comprises a water supply structure, a rotating shaft assembly, a main spray arm, a transmission member and an auxiliary spray arm. The water supply structure is connected to the waterway of the dishwasher. The rotating shaft assembly is connected to the water supply structure. Main spray arm The main spray arm comprises a main spray arm body and a plurality of main spray holes provided on the main spray arm body. The middle part of the main spray arm body is rotationally connected to the water supply structure through the rotating shaft assembly, and the main spray arm body can rotate in a first plane relative to the water supply structure. The transmission member is transmission-connected to the main spray arm, and when the main spray arm rotates, it can drive the transmission member to reciprocate along a straight line. The auxiliary spray arm comprises a first auxiliary spray arm body, a plurality of auxiliary spray holes are provided on the first auxiliary spray arm body, the first auxiliary spray arm body is mounted on the transmission member and rotationally connected to the water supply structure, the first auxiliary spray arm body can rotate in a second plane relative to the water supply structure, the first plane and the second plane have an angle, and the first auxiliary spray arm body is connected with the transmission member with clearance fit. The water in the water supply structure flows into the main spray arm body and the auxiliary spray arm body, and then is sprayed out from the main spray hole and the auxiliary spray hole. When the water in the main spray arm body is sprayed out from the main spray hole, the main spray arm body rotates relative to the water supply structure, and at the same time drives the transmission member to reciprocate along a straight line, so that the transmission member drives the first auxiliary spray arm body to reciprocate relative to the water supply structure within a preset angle, thereby making the water flow sprayed from the auxiliary spray hole and the water flow sprayed from the main spray hole have different angles, so that the spray arm structure can spray the tableware in the dishwasher from different angles, effectively reducing or even avoiding cleaning dead angles, and improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the three-dimensional structure of the spray arm structure of the dishwasher provided by a specific embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of the three-dimensional structure of the spray arm structure of the dishwasher provided by a specific embodiment of the present invention with the water supply structure removed;

[0029] Figure 3 yes Figure 2 Exploded diagram of

[0030] Figure 4 yes Figure 2 A cross-sectional view of

[0031] Figure 5 yes Figure 4 Sectional view at A in the middle;

[0032] Figure 6 yes Figure 4 Sectional view at B in the middle;

[0033] Figure 7 is a top view of a transmission member of a spray arm structure of a dishwasher provided by a specific embodiment of the present invention;

[0034] Figure 8 It is a schematic diagram of the three-dimensional structure of a limit block of a spray arm structure of a dishwasher provided by a specific embodiment of the present invention;

[0035] Fig. 9 It is a structural schematic diagram of a spray arm structure of a dishwasher provided by a specific embodiment of the present invention installed on a bowl basket;

[0036] Fig.10 yes Fig. 9 Enlarged view of point C in the middle;

[0037] Fig.11 It is a schematic diagram of the three-dimensional structure of the connecting piece of the dishwasher provided in a specific embodiment of the present invention.

[0038] In the figure:

[0039] 1. Auxiliary spray arm; 11. First auxiliary spray arm body; 12. Connector; 121. Connector body; 122. First buckle; 123. Avoidance groove; 13. Auxiliary spray hole; 14. Gasket; 15. Second auxiliary spray arm body;

[0040] 2. Transmission member; 21. Transmission member body; 22. Waist-shaped slot hole; 23. First clamping hole; 24. Guide hole;

[0041] 3. Shaft assembly;

[0042] 4. Main spray arm; 41. Main spray arm body; 411. Main spray hole; 42. Transmission part;

[0043] 5. Water supply structure; 51. Water supply pipe; 52. Connecting pipe;

[0044] 6. Limit block; 61. Limit block body; 62. Limit slot; 63. Second buckle; 64. First slot; 65. Second slot;

[0045] 7. Bowl basket; 71. Horizontal basket pole; 72. Vertical basket pole. DETAILED DESCRIPTION

[0046] The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the specific embodiments of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed by the present invention.

[0047] Embodiment 1

[0048] Please refer to Figure 1-Figure 11 The present invention provides a spray arm structure of a dishwasher, comprising a water supply structure 5, a rotating shaft assembly 3, a main spray arm 4, a transmission member 2 and an auxiliary spray arm 1. The water supply structure 5 is connected to the water circuit of the dishwasher. The rotating shaft assembly 3 is connected to the water supply structure 5. The main spray arm 4 comprises a main spray arm body 41 and a plurality of main spray holes 411 provided on the main spray arm body 41. The middle portion of the main spray arm body 41 is rotatably connected to the water supply structure 5 through the rotating shaft assembly 3, and the main spray arm body 41 can rotate in a first plane relative to the water supply structure 5. The transmission member 2 is transmission-connected to the main spray arm 4, and when the main spray arm 4 rotates, it can drive the transmission member 2 to reciprocate along a straight line. The auxiliary spray arm 1 includes a first auxiliary spray arm body 11, which is provided with a plurality of auxiliary spray holes 13. The first auxiliary spray arm body 11 is installed on the transmission member 2 and is rotatably connected to the water supply structure 5. The first auxiliary spray arm body 11 can rotate on a second plane relative to the water supply structure 5. There is an angle between the first plane and the second plane. The first auxiliary spray arm body 11 is connected with the transmission member 2 with a clearance fit. The water in the water supply structure 5 flows into the main spray arm body 41 and the first auxiliary spray arm body 11, and then is sprayed out from the main spray hole 411 and the auxiliary spray hole 13. When the water in the main spray arm body 41 is sprayed out from the main spray hole 411, the main spray arm body 41 rotates relative to the water supply structure 5, and at the same time drives the transmission member 2 to reciprocate along a straight line, so that the transmission member 2 drives the first auxiliary spray arm body 11 to reciprocate relative to the water supply structure 5 within a preset angle, thereby making the water flow sprayed from the auxiliary spray hole 13 and the water flow sprayed from the main spray hole 411 have different angles, so that the spray arm structure can spray the tableware in the dishwasher from different angles, effectively reducing or even avoiding cleaning dead angles, and improving the cleaning effect.

[0049] Optionally, the transmission member 2 includes a transmission member body 21, on which a guide hole 24 and one of a waist-shaped slot hole 22 and a transmission part 42 are provided. The guide hole 24 is provided in the middle of the transmission member body 21, and the waist-shaped slot hole 22 is provided on one side of the guide hole 24. The guide hole 24 is sleeved on the rotating shaft assembly 3. The first auxiliary spray arm body 11 is installed at the end of the transmission member body 21, and the main spray arm body 41 is provided with the other of the waist-shaped slot hole 22 and the transmission part 42. The transmission part 42 is inserted into the waist-shaped slot hole 22 and can slide along the waist-shaped slot hole 22. When the main spray arm body 41 rotates, the transmission part 42 acts on the waist-shaped slot hole 22 and pushes the transmission member body 21 to move in a straight line along the waist-shaped slot hole 22. The structure is simple.

[0050] It should be noted that the rotating shaft assembly 3 is a prior art, and as long as it can realize the rotation of the main spray arm 4 relative to the water supply structure 5, it will not be described in detail here.

[0051] In this embodiment, the waist-shaped slot hole 22 is a through rectangular hole. In other embodiments, the waist-shaped slot hole 22 may also be a rectangular slot with an opening.

[0052] Optionally, in this embodiment, the waist-shaped slot 22 is provided on the transmission member body 21, and the transmission part 42 is provided on the main spray arm body 41, so as to minimize the thickness of the main spray arm body 41 and facilitate the compactness of the structure. Optionally, the water supply structure 5 is provided on the upper side of the main spray arm body 41, and the transmission member body 21 is located between the water supply structure 5 and the main spray arm body 41. Such a configuration facilitates the installation of the transmission member 2 on the main spray arm 4, and at the same time can achieve the limit of the transmission part 42, so that the transmission part 42 can always be inserted in the waist-shaped slot 22, and the transmission part 42 is prevented from coming out of the waist-shaped slot 22.

[0053] Optionally, one of the first clamping hole 23 and the first clamping buckle 122 is provided at the end of the transmission member body 21, and the other of the first clamping hole 23 and the first clamping buckle 122 is provided on the first auxiliary spray arm body 11, and the first clamping buckle 122 is inserted into the first clamping hole 23, thereby realizing the clearance fit installation of the first auxiliary spray arm body 11 on the transmission member body 21.

[0054] Optionally, the main spray arm body 41 is extended along the horizontal plane, the water supply structure 5 includes a water supply pipe 51 and a connecting pipe 52 connected to each other, the water supply pipe 51 and the first auxiliary spray arm body 11 are both extended along the front-back direction, the first auxiliary spray arm body 11 is connected to the water supply pipe 51 through the connecting pipe 52, and the transmission member 2 is arranged along the left-right direction. Specifically, the main spray arm body 41 rotates in the first plane, that is, the main spray arm body 41 rotates in the horizontal plane, and the first auxiliary spray arm body 11 rotates in the second plane, that is, the first auxiliary spray arm body 11 rotates in the vertical plane. When the main spray arm body 41 rotates, the main spray arm body 41 drives the transmission member body 21 to perform linear reciprocating motion along the left-right direction.

[0055] Optionally, two groups of auxiliary spray arms 1 are provided, with one group of auxiliary spray arms 1 being provided on the left and right sides of the water supply pipe 51, so as to expand the spraying area and improve the spraying uniformity.

[0056] Embodiment 2

[0057] The difference between the second embodiment and the embodiment is that the auxiliary spray arm 1 further includes a second auxiliary spray arm body 15 and a connecting piece 12, the first auxiliary spray arm body 11 and the second auxiliary spray arm body 15 are connected by the connecting piece 12, the second auxiliary spray arm body 15 is arranged at the front end of the first auxiliary spray arm body 11, and a plurality of auxiliary spray holes 13 are opened on the second auxiliary spray arm body 15. By providing the first auxiliary spray arm body 11 and the second auxiliary spray arm body 15 as separate bodies, demoulding is facilitated.

[0058] Optionally, the connector 12 includes a connector body 121 , and the first buckle 122 is disposed on the connector body 121 , so as to facilitate the disposition of the first buckle 122 .

[0059] Optionally, the connector body 121 is further provided with an escape groove 123, which is used to escape the horizontal basket rod 71 of the bowl basket 7 of the dishwasher, so as to facilitate the installation of the connector 12 and facilitate the compactness of the structure.

[0060] Another aspect of the present invention provides a dishwasher, comprising a bowl basket 7 and the above-mentioned spray arm structure of the dishwasher, wherein the spray arm structure is arranged at the lower side of the bowl basket 7 .

[0061] Optionally, it also includes a limit block 6, which is installed on the bowl basket 7. One end of the first auxiliary spray arm body 11 is rotatably connected to the water supply structure 5, and the other end of the first auxiliary spray arm body 11 is rotatably connected to the limit block 6. The limit block 6 and the water supply structure 5 jointly define the two ends of the first auxiliary spray arm body 11, so that both ends of the first auxiliary spray arm 1 can rotate stably, thereby ensuring the stability of the first auxiliary spray arm 1.

[0062] Optionally, the limit block 6 includes a limit block body 61, and a limit groove 62 is provided on the upper side of the limit block body 61. The auxiliary spray arm 1 also includes a washer 14 sleeved on the first auxiliary spray arm body 11, and the washer 14 is located in the limit groove 62. The first auxiliary spray arm 1 rotates in the limit groove 62 through the washer 14, which, on the one hand, further limits the axial position of the first spray arm body to ensure the stability of the first auxiliary spray arm body 11, and on the other hand, avoids the rigid contact between the first auxiliary spray arm body 11 and the limit groove 62, thereby preventing the first auxiliary spray arm body 11 from being worn.

[0063] Optionally, a second clip 63 is provided at one end of the limit block body 61, a first clip groove 64 with an upward opening is provided at the other end of the limit block body 61, a second clip groove 65 with an upward opening is provided on the second clip groove 63, one of the vertical basket rods 72 of the bowl basket 7 is clamped at the lower side of the second clip groove 63, and one of the horizontal basket rods 71 ​​of the bowl basket 7 is clamped in the first clip groove 64 and the second clip groove 65, thereby realizing the installation of the limit block 6 on the bowl basket 7.

[0064] Specifically, the bowl basket 7 is woven by a plurality of horizontal basket rods 71 ​​extending in the left-right direction and a plurality of vertical basket rods 72 extending in the front-back direction. A horizontal basket rod 71 corresponding to the position of the limiting body 61 is clamped in the first clamping groove 64 and the second clamping groove 65, and a vertical basket rod 72 corresponding to the position of the limiting body 61 is clamped in the second buckle 63.

[0065] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A spray arm structure of a dishwasher, characterized in that: include: A water supply structure (5) connected to the water circuit of the dishwasher; A rotating shaft assembly (3) connected to the water supply structure (5); A main spray arm (4), the main spray arm (4) comprising a main spray arm body (41) and a plurality of main spray holes (411) provided on the main spray arm body (41), the middle portion of the main spray arm body (41) being rotatably connected to the water supply structure (5) via the rotating shaft assembly (3), and the main spray arm body (41) being capable of rotating on a first plane relative to the water supply structure (5); The transmission member (2) is in transmission connection with the main spray arm (4), and when the main spray arm (4) rotates, it can drive the transmission member (2) to reciprocate along a straight line; The auxiliary spray arm (1) comprises a first auxiliary spray arm body (11), a plurality of auxiliary spray holes (13) are provided on the first auxiliary spray arm body (11), the first auxiliary spray arm body (11) is mounted on the transmission member (2) and is rotatably connected to the water supply structure (5), the first auxiliary spray arm body (11) can rotate on a second plane relative to the water supply structure (5), an angle is formed between the first plane and the second plane, and the first auxiliary spray arm body (11) is connected to the transmission member (2) with a clearance fit.

2. The spray arm structure of the dishwasher according to claim 1, characterized in that: The transmission member (2) comprises a transmission member body (21), the transmission member body (21) is provided with a guide hole (24) and one of a waist-shaped slot hole (22) and a transmission part (42), the guide hole (24) is provided in the middle of the transmission member body (21), the waist-shaped slot hole (22) is provided on one side of the guide hole (24), the guide hole (24) is sleeved on the rotating shaft assembly (3), the first auxiliary spray arm body (11) is mounted on the end of the transmission member body (21), the main spray arm body (41) is provided with the other of the waist-shaped slot hole (22) and the transmission part (42), the transmission part (42) is inserted into the waist-shaped slot hole (22) and can slide along the waist-shaped slot hole (22).

3. The spray arm structure of the dishwasher according to claim 2, characterized in that: The water supply structure (5) is arranged on the upper side of the main spray arm body (41), and the transmission member body (21) is located between the water supply structure (5) and the main spray arm body (41).

4. The spray arm structure of the dishwasher according to claim 2, characterized in that: One of the first clamping hole (23) and the first clamping buckle (122) is provided at the end of the transmission member body (21), and the other of the first clamping hole (23) and the first clamping buckle (122) is provided on the first auxiliary spray arm body (11), and the first clamping buckle (122) is clamped into the first clamping hole (23).

5. The spray arm structure of the dishwasher according to claim 4, characterized in that: The auxiliary spray arm (1) further comprises a second auxiliary spray arm body (15) and a connecting piece (12); the first auxiliary spray arm body (11) and the second auxiliary spray arm body (15) are connected via the connecting piece (12); the second auxiliary spray arm body (15) is arranged at the front end of the first auxiliary spray arm body (11); and a plurality of auxiliary spray holes (13) are provided on the second auxiliary spray arm body (15).

6. The spray arm structure of the dishwasher according to claim 5, characterized in that: The connecting piece (12) comprises a connecting piece body (121), and the first buckle (122) is arranged on the connecting piece body (121).

7. The spray arm structure of the dishwasher according to claim 6, characterized in that: The connector body (121) is also provided with an escape groove (123), and the first buckle (122) is arranged in the escape groove (123).

8. The spray arm structure of a dishwasher according to any one of claims 1 to 7, characterized in that: The main spray arm body (41) is extended along a horizontal plane, the water supply structure (5) comprises a water supply pipe (51) and a connecting pipe (52) connected to each other, the water supply pipe (51) and the first auxiliary spray arm body (11) are both extended along the front-back direction, the first auxiliary spray arm body (15) is connected to the water supply pipe (51) via the connecting pipe (52), and the transmission member (2) is arranged along the left-right direction.

9. The spray arm structure of the dishwasher according to claim 8, characterized in that: Two groups of auxiliary spray arms (1) are provided, and one group of auxiliary spray arms (1) is provided on the left side and the right side of the water supply pipe (51).

10. A dishwasher, characterized in that: The dishwasher comprises a bowl basket (7) and a spray arm structure according to any one of claims 1 to 9, wherein the spray arm structure is arranged on the lower side of the bowl basket (7).

11. The spray arm structure of the dishwasher according to claim 10, characterized in that: It also includes a limit block (6), which is installed on the bowl basket (7); one end of the first auxiliary spray arm body (11) is rotatably connected to the water supply structure (5); and the other end of the first auxiliary spray arm body (11) is rotatably connected to the limit block (6).

12. The spray arm structure of the dishwasher according to claim 11, characterized in that: The limit block (6) comprises a limit block body (61), a limit groove (62) is provided on the upper side of the limit block body (61), and the auxiliary spray arm (1) further comprises a gasket (14) sleeved on the first auxiliary spray arm body (11), and the gasket (14) is located in the limit groove (62).

13. The spray arm structure of the dishwasher according to claim 12, characterized in that: One end of the limit block body (61) is provided with a second buckle (63), the other end of the limit block body (61) is provided with a first clamping groove (64) with an opening facing upwards, the second clamping groove (63) is provided with a second clamping groove (65) with an opening facing upwards, one of the vertical basket rods (72) of the bowl basket (7) is clamped at the lower side of the second buckle (63), and one of the horizontal basket rods (71) of the bowl basket (7) is clamped in the first clamping groove (64) and the second clamping groove (65).

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