Dish-washing machine spraying device and dish-washing machine

Abstract

The invention discloses a dish-washing machine spraying device and a dish-washing machine. The spraying device comprises a spraying arm provided with a through hole; the water inlet piece is communicated with the spraying cavity of the spraying arm through the through hole and used for feeding water into the spraying cavity of the spraying arm, and the spraying arm can slide relative to the water inlet piece when rotating with the water inlet piece as a rotating shaft. Through relative sliding of the water inlet piece and the spraying arm, the position of the rotating shaft of the spraying arm is changed, then the spraying range of the spraying arm is enlarged, dead angles are reduced, and a better washing effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of household appliances, in particular, relates to a dish washing machine spraying device and a dish washing machine. BACKGROUND

[0002] With the continuous improvement of the level of science and technology, science and technology provides more convenience for people's life, more and more household appliances enter the people's home, people's living standard and quality of life are constantly improved, due to the need of social development, people work outside, less time to do housework, the use of dish washing machine, the time of people to do housework is liberated.

[0003] The dish washing machine is a kind of equipment capable of automatically cleaning dishes and cutlery, through multiple spray arms rotating to spray washing water, the cleaning of dishes in the dish washing machine is completed, the spray arm is driven to rotate by the reaction force of the washing water sprayed from the spray hole, since the inner container of the dish washing machine is usually close to square, and the washing area of the spray arm of the dish washing machine is circular, the washing effect of the four corner positions of the basket area is poor, there is a washing dead zone, which affects the washing effect of the dish washing machine.

[0004] Therefore, the present application is proposed. SUMMARY

[0005] The technical problem solved by the present application is to overcome the shortcomings of the prior art, and provide a dish washing machine spraying device, which changes the moving path of the spray arm, increases the spraying area and reduces the dead angle.

[0006] To solve the above technical problems, the basic idea of the technical scheme adopted by the present application is: A dish washing machine spraying device, comprising a spray arm provided with a through hole; a water inlet element in communication with the spray cavity of the spray arm through the through hole, for feeding water into the spray cavity of the spray arm, and the spray arm can slide relative to the water inlet element when rotating around the water inlet element.

[0007] Further, a guide element is further included, the spray arm is slidingly connected with the guide element, and the guide element guides the spray arm to slide relative to the water inlet element when the spray arm rotates.

[0008] Further, the water inlet element is rotatably installed on the water inlet of the spraying device. Preferably, the guide element is arranged on the outer periphery of the water inlet. Preferably, the water inlet and the guide element are integrally arranged.

[0009] Further, the through hole is arranged on the side of the spray arm facing the guide element.

[0010] Further, one end of the water inlet member is located in the spraying cavity of the spraying arm, and the other end passes through the through hole and is located outside the spraying arm, and the end of the water inlet member outside the spraying arm is rotatably installed on the water inlet of the spraying device. Preferably, the water inlet member comprises, The sliding part is located in the spraying cavity and slides relative to the sliding part when the spraying arm rotates. The water inlet part is arranged outside the spraying arm through the through hole and is used for water inlet into the spraying cavity, the spraying arm rotates around the axis of the water inlet part as the rotation axis, and the water inlet part is rotatably installed on the water inlet (25), More preferably, the sliding part is a plate structure. More preferably, the sliding part is provided with a convex rib extending in the direction of the inner wall of the spraying arm along the axis, and the convex rib is arranged on the side of the sliding part away from the through hole.

[0011] Further, a convex part is arranged between the sliding part and the inner wall of the spraying cavity of the spraying arm. Preferably, the convex part is arranged on the inner wall of the spraying cavity on the side of the spraying arm with the through hole. More preferably, the convex part is distributed on both sides of the through hole.

[0012] Further, the through hole extends from the middle of the spraying arm to at least one end. Preferably, the through hole extends from the middle of the spraying arm to one end. More preferably, the through hole is a long hole.

[0013] Further, a guide rod is arranged, one end of which is connected with the spraying arm, and the other end is slidably connected with the guide part.

[0014] Further, the guide rod is arranged on the side of the spraying arm with the through hole. Preferably, the guide rod is arranged on the side of the through hole close to the end of the spraying arm. More preferably, the guide rod is integrally arranged with the spraying arm.

[0015] A dishwasher is installed with the dishwasher spraying device as described above.

[0016] After adopting the technical scheme, the present application has the following beneficial effects compared with the prior art: 1. By relative sliding of the water inlet member and the spraying arm, the position of the rotation shaft of the spraying arm is changed, and the spraying range of the spraying arm is changed, and further by sliding connection of the guide part and the spraying arm, the relative sliding of the water inlet member and the spraying arm is promoted, and the spraying range is increased, the dead angle is reduced, and better washing effect is achieved.

[0017] 2. The present invention uses through holes and water inlets to adjust the position and extension length of the through holes in the spray arm according to the size and shape of the inner tank, so that the dead angle can be reduced under the guidance of the guide. Furthermore, the protrusions set inside the spray arm prevent the water inlet from abutting against the inner wall of the spray arm during the washing process, which would cause greater friction and affect their relative sliding.

[0018] 3. The present invention connects a guide rod to the spray arm and slides with the guide member. The guide rod moves along the guide groove of the guide member. The shape of the guide groove changes the distance between the guide rod and the water inlet, so that the water inlet and the spray arm slide relative to each other. This changes the movement state of the spray arm in the inner tank, increases the spray area, and reduces dead angles.

[0019] 4. The present invention provides a certain gap between the water inlet and the inner wall of the spray arm by setting a rib on the water inlet. In the washing state, the moving distance of the water inlet is reduced, and the spray arm is prevented from shifting during the movement of the spray arm, which would affect the relative sliding between the water inlet and the spray arm.

[0020] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the spraying device of the present invention; Figure 2 This is the present invention. Figure 1 Schematic diagram of the guide component; Figure 3 This is a schematic diagram of the inner wall structure of the spray device of the present invention; Figure 4 This is a schematic diagram of the assembly of the spray device of the present invention; Figure 5 This is the present invention. Figure 4 A sectional view of the middle assembly; Figure 6 This is another schematic diagram of the spraying device of the present invention; Figure 7 This is a schematic diagram of part of the structure of the present invention; Figure 8 This is the present invention. Figure 5 A schematic diagram of another type of guide component.

[0022] In the figure: 1. Spray arm; 11. Spray hole; 12. Through hole; 13. Protrusion; 14. Guide rod; 15. Drive hole; 2. Guide component; 21. Guide groove; 23. First ring wall; 24. Second ring wall; 25. Water inlet; 3. Water inlet component; 31. Rib; 32. Water inlet part; 33. Sliding part.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0025] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] like Figures 1 to 8 As shown, the dishwasher spray device of the present invention includes a spray arm 1 with a through hole 12. A drive hole 15 for driving the spray arm to rotate is provided on the outer side wall near the end along the reverse rotation direction. A water inlet 3 is connected to the spray arm 1 through the through hole 12 and is used to guide water into the spray chamber of the spray arm 1. When the spray arm 1 rotates about the water inlet 3 as the rotation axis, it can slide relative to the water inlet 3.

[0028] Specifically, the spray arm 1 is rectangular columnar, with a drive hole 15 on its outer side wall near the end. Water flows out through the drive hole 15, and the reaction force of the spray pushes the spray arm 1 to rotate. In another embodiment, there are two drive holes 15, respectively located on two different side walls along the rotation direction, near the end. The spray arm 1 has a through hole 12. In one embodiment, the water inlet 3 is partly located inside the spray chamber of the spray arm 1, and the other part passes through the through hole 12 on the outside of the spray arm 1, for guiding water into the spray chamber of the spray arm 1. In another embodiment, the outer peripheral wall of the spray arm 1 along the rotation direction has a groove (not shown in the figure), and the water inlet 3... Located on the outer periphery of the spray arm 1, part of it is slidably installed in the sliding groove. The outlet of the water inlet 3 is set corresponding to the through hole 12, so that during the sliding process of the spray arm 1 relative to the water inlet 3, the outlet of the water inlet 3 is always facing the through hole 12. The spray arm 1 rotates about the axis of the water inlet 3. During the rotation, the spray arm 1 slides relative to the water inlet 3. By sliding the spray arm 1, the spray range of the spray arm 1 is increased and the dead angle is reduced. The above is only an example to illustrate the relative sliding method between the spray arm 1 and the water inlet 3, and is not limited to these two implementation methods. Other implementation methods that can satisfy the relative sliding are also within the protection scope of this invention. This invention uses the first implementation method as an example for explanation.

[0029] In a further embodiment, the spraying device further includes a guide member 2, the spraying arm 1 is slidably connected to the guide member 2, the guide member 2 guides the spraying arm 1 to slide relative to the water inlet 3 when the spraying arm 1 rotates, the water inlet 3 is rotatably mounted on the water inlet 25, and the guide member 2 is located on the outer periphery of the water inlet 25.

[0030] Specifically, such as Figure 2 and Figure 8 As shown, the guide member 2 includes a first annular wall 23 and a second annular wall 24, and a guide groove 21 is formed between the first annular wall 23 and the second annular wall 24. The guide groove 21 is disposed on the outer periphery of the water inlet 25. In a preferred embodiment, the water inlet 25 is integrally disposed with the guide member 2. The water inlet end of the water inlet member 3 is rotatably connected to the water inlet 25. The spray arm 1 is driven to rotate by the water flow, which in turn drives the water inlet member 3 to rotate. The distance between the guide groove 21 and the water inlet 25 guides the relative sliding between the water inlet member 3 and the spray arm 1, thereby changing the position of the rotation axis during the rotation of the spray arm 1, increasing the spray range, and reducing dead angles.

[0031] The above is just an example to illustrate the shape of the guide groove 21, and is not the only implementation. Depending on the size and shape of the dishwasher inner tub, the extension distance of the through hole 12 can be changed, and the shape of the guide groove 21 can be changed to meet the spray range, thereby driving the movement trajectory and range of the spray arm 1.

[0032] In a further embodiment, a guide rod 14 is also included, one end of which is connected to the spray arm 1 and the other end is slidably connected to the guide member 2.

[0033] Specifically, the spray arm 1 is connected to a guide rod 14, which extends into the guide groove 21 of the guide member 2 and moves along the trajectory formed by the guide groove 21. In one embodiment, the guide rod 14 is disposed on the side arm of the spray arm 1 in the rotation direction. The guide rod 14 extends a certain distance in the rotation direction and then extends vertically or obliquely towards the guide member 2, so that the extended end of the guide rod 14 can be moved within the guide groove 21. In another embodiment, the guide rod 14 can also be disposed on the side wall of the guide rod 14 along its length direction. The rod 14 extends vertically or obliquely towards the guide groove 21, so that the extended end of the guide rod 14 can be movably positioned within the guide groove 21. In this embodiment, taking the guide rod 14 positioned on the side of the through hole 12 near the end of the spray arm 1 as an example, the first annular wall 23 is positioned on the outer periphery of the water inlet 25, and the guide rod 14 is movably positioned within the guide groove 21. The shape of the first annular wall 23 is proportionally set to the shape of the second annular wall 24, and the distance between the first annular wall 23 and the second annular wall 24 is slightly greater than the maximum outer diameter of the water inlet 32. The first annular wall 23... The distance between the inner wall and the nearest inner wall of the inlet 25 is less than or equal to the distance between the outer peripheral wall of the inlet 32 ​​and the outer peripheral wall of the guide rod 14. The shape of the guide groove 21 guides the sliding distance between the inlet component 3 and the spray arm 1. The distance between the first annular wall 23 on the guide groove 21 and the inlet 25 corresponds to the length, width, and corner of the inner liner. These three distances correspond to three inflection points. In this embodiment, for example, the first inflection point corresponds to the corner setting, the second inflection point corresponds to the width setting, and the third inflection point corresponds to the length setting. The first inflection point is the distance between the first annular wall 23 and the inlet 25. The position closest to the water inlet 25 corresponds to the four corners of the inner tub. The second inflection point is the position furthest between the first annular wall 23 and the water inlet 25, symmetrically arranged along the width direction of the inner tub. The third inflection point is the distance between the first annular wall 23 and the water inlet 25, set according to the length of the inner tub. The guide groove 21 between each inflection point is set according to the position of the end of the spray arm 1 close to the inner tub wall during the movement process, forming a rhombus shape or a near-elliptical shape. The above is just an example to illustrate the shape of the guide groove 21, and is not limited to this implementation. According to the size and shape of the dishwasher inner tub, the extension distance of the through hole 12 and the position of the guide rod 14 are changed to change the shape of the guide groove 21 to meet the spray range. Depending on the position of the guide rod 14 on the spray arm 1, the guide rail shape of the guide groove 21 is also different, driving the movement trajectory and range of the spray arm 1.

[0034] In a further embodiment, the inner wall of the spray arm 1 is provided with a plurality of protrusions 13, which are located between the inner wall of the spray arm 1 and the water inlet 3.

[0035] Specifically, the chamber of the spray arm 1 has at least one set of protrusions 13 on its inner wall along the axial direction of the water inlet 3. In one embodiment, the spray arm 1 has protrusions 13 on its inner wall near the guide 2. The protrusions 13 are evenly distributed on both sides of the through hole 12. In the initial state, the sliding part 33 of the water inlet 3 is close to the inner wall of the spray arm 1 away from the guide 2. In the washing state, the washing water pushes the spray arm 1 to move through the water inlet hole of the water inlet 32 ​​and flows between the sliding part 33 and the inner wall of the spray arm 1. The force of the water flow causes the spray arm 1 to move away from the guide 2, so that the sliding part 33 abuts against the protrusions 13. The protrusions 13 are arranged to block the through hole 12. Meanwhile, to prevent the sliding part 33 from contacting the inner wall of the spray arm 1 during the spraying process, a certain gap is left so that the water inlet 3 and the spray arm 1 can slide smoothly relative to each other; in another embodiment, the spray arm 1 is provided with protrusions 13 on both inner sidewalls along the axial direction of the water inlet 3. The water inlet 3 has a certain gap with the inner sidewall of the spray arm 1 in the initial state. In the washing state, the washing water pushes the spray arm 1 to move through the water inlet hole of the water inlet 32 ​​and flows into the space between the sliding part 33 and the inner sidewall of the spray arm 1. The force of the water flow causes the spray arm 1 to move away from the direction of the guide 2, reducing the moving distance of the spray arm 1, speeding up the start-up time of the spray arm, and preventing excessive leakage so that the spray arm 1 cannot be lifted by the water flow.

[0036] In a further embodiment, the through hole 12 is provided on the spray arm 1 on the side near the guide member 2.

[0037] Specifically, the through hole 12 is an elongated hole that extends a certain distance along the length of the spray arm 1. In a preferred embodiment, the through hole 12 extends from the middle of the spray arm 1 to one end. The spray arm 1 rotates around the axis of the water inlet 3. When the water inlet 3 is in the middle position of the spray arm 1, the spray arm 1 and the water inlet 3 are coaxially arranged. When the water inlet 3 is near one end of the spray arm 1, the movement trajectory of the other end of the spray arm 1 increases, thereby increasing the cleaning range. This embodiment is only an example and is not the only implementation. The through hole 12 can also be circular or near-circular or other shapes that allow the spray arm 1 and the positioning member 3 to slide relative to each other.

[0038] In a further embodiment, the water inlet 3 includes a sliding part 33, which is located inside the spray chamber and slides relative to the spray arm 1; and a water inlet part 32, which passes through the through hole 12 and is disposed on the outside of the spray arm 1 for introducing water into the spray chamber. The spray arm 1 rotates about the axis of the water inlet part 32, and the water inlet part 32 is connected to the water inlet 25.

[0039] Specifically, the water inlet 3 includes a sliding part 33 and a water inlet part 32. The sliding part 33 is plate-shaped and located in the cavity formed by the spray arm 1. The spray arm 1 has a through hole 12 on the side facing the guide member 2. The through hole 12 extends along the length of the spray arm 1. The sliding part 33 can slide a distance equal to the extension distance of the through hole 12. The water inlet part 32 is cylindrical and extends through the sliding part 33. The water inlet part 32 and the water inlet 25 are rotatably configured. The spray arm 1 is slidably connected to the guide member 2 via a guide rod 14 to form a connecting rod. The movement trajectory of the spray arm 1 is changed by the cooperation of the through hole 12 and the guide member 2, so that the spray arm 1 can clean the corners of the dishwasher drum, increase the washing area, and reduce dead corners.

[0040] In a further embodiment, the water inlet 3 is provided with a rib 31, which is located in the chamber of the spray arm 1 and extends toward the inner wall.

[0041] Specifically, the sliding part 33 of the water inlet 3 is provided with a rib 31. The rib 31 is located on the side away from the through hole 12 and extends a certain distance towards the inner wall along the axial direction of the water inlet 3. In one embodiment, the protrusion 13 is only provided on both sides of the through hole 12, and there are two ribs 31 located on the side away from the through hole 12, respectively provided on both sides of the water inlet 32. In the initial state, the extended end of the rib 31 abuts against the inner wall, and the rib 31 forms a gap between the sliding part 33 and the inner wall, while maintaining the balance of the spray arm 1. During the washing process, the water flow impacts the spray arm 1 and pushes it to move, so that the sliding part 33... The moving part 33 blocks the through hole 12 to prevent water from flowing out and abuts against the protrusion 13. The setting of the rib 31 reduces the moving distance of the spray arm 1, prompting the spray arm 1 to start quickly. At the same time, it avoids the spray arm from tilting or shifting during movement, which would affect the relative sliding between the water inlet 3 and the spray arm 1. In another embodiment, the rib 31 is set on both sides of the sliding part 33 along the axial direction of the water inlet 32. In this embodiment, the setting of the protrusion 13 can be eliminated. The rib 31 also prevents the sliding part 33 from directly contacting the inner wall of the spray chamber in the washing state, and can also reduce the moving distance of the spray arm 1, so that it starts quickly.

[0042] The present invention also discloses a dishwasher using the spray device in the above embodiment. The water inlet 25 of the guide member 2 is connected to the water passage and flows into the chamber of the spray arm 1 through the water inlet 32. The water flows into the space between the sliding part 33 and the inner wall of the chamber, pushing the sliding part 33 towards the protrusion 13. The water flows through the drive hole 15 of the spray arm 1 to drive the spray arm 1 to rotate. The dishware to be washed in the dishwasher is cleaned through the spray hole 11. Furthermore, the guide rod 14 connected to the spray arm 1 slides along the guide groove 21 of the guide member 2. The gap between the guide groove 21 and the water inlet 25 changes the position of the water inlet 32 ​​in the spray arm 1, so that it slides relative to the guide rod 14, thereby increasing the spray area of ​​the spray arm 1, reducing dead corners, and washing thoroughly.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A dishwasher spray device, characterized in that: include The spray arm (1) is provided with a through hole (12). The water inlet (3) is connected to the spray chamber of the spray arm (1) through the through hole (12) and is used to introduce water into the spray chamber of the spray arm (1). When the spray arm (1) rotates around the water inlet (3) as the rotation axis, it can slide relative to the water inlet (3).

2. The dishwasher spray device according to claim 1, characterized in that: It also includes a guide (2), the spray arm (1) is slidably connected to the guide (2), and the guide (2) guides the spray arm (1) to slide relative to the water inlet (3) when the spray arm (1) rotates.

3. The dishwasher spray device according to claim 2, characterized in that: The water inlet component (3) is rotatably mounted on the water inlet (25) of the spray device; Preferably, the guide member (2) is disposed on the outer periphery of the water inlet (25); Preferably, the water inlet (25) and the guide (2) are integrally formed.

4. A dishwasher spray device according to claim 2 or 3, characterized in that: The through hole (12) is located on the side of the spray arm (1) facing the guide (2).

5. A dishwasher spray device according to any one of claims 1-4, characterized in that: One end of the water inlet (3) is located inside the spray chamber of the spray arm (1), and the other end passes through the through hole (12) and is located on the outside of the spray arm (1). The end of the water inlet (3) located on the outside of the spray arm (1) can be rotatably installed on the water inlet (25) of the spray device. Preferably, the water inlet (3) includes, The sliding part (33) is located inside the spray chamber. When the spray arm (1) rotates, it slides relative to the sliding part (33). The water inlet (32) is disposed on the outside of the spray arm (1) through the through hole (12) for water to enter the spray chamber. The spray arm (1) rotates about the axis of the water inlet (32). The water inlet (32) is rotatably mounted on the water inlet (25). More preferably, the sliding part (33) has a plate-like structure; More preferably, the sliding part (33) is provided with a rib (31), the rib (31) extends along the axis toward the inner wall of the spray arm (1), and the rib (31) is provided on the side of the sliding part (33) opposite to the through hole.

6. A dishwasher spray device according to claim 5, characterized in that: A protrusion (13) is provided between the sliding part (33) and the inner wall of the spray chamber of the spray arm (1). Preferably, the protrusion (13) is disposed on the inner wall of the spray chamber on the side of the spray arm (1) with the through hole (12); More preferably, the protrusions (13) are distributed on both sides of the through hole (12).

7. A dishwasher spray device according to any one of claims 1-6, characterized in that: The through hole (12) extends from the middle of the spray arm (1) to at least one end; Preferably, the through hole (12) extends from the middle of the spray arm (1) to one end; More preferably, the through hole (12) is an elongated hole.

8. A dishwasher spray device according to any one of claims 1-7, characterized in that: It also includes a guide rod (14), one end of which is connected to the spray arm (1), and the other end is slidably connected to the guide member (2).

9. A dishwasher spray device according to claim 8, characterized in that: The guide rod (14) is located on one side of the spray arm (1) with the through hole (12); Preferably, the guide rod (14) is disposed on the side of the through hole (12) near the end of the spray arm (1); More preferably, the guide rod (14) is integrally formed with the spray arm (1).

10. A dishwasher, characterized in that: The dishwasher spray device as described in any one of claims 1-9 is installed.

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