Spraying arm assembly and dish washing machine
By designing a spray arm assembly that engages the transmission and drive shaft, the reciprocating swing of the secondary spray arm relative to the main spray arm is solved, and the existing dishwasher spray arm assembly can only spray cleaning water in the set direction, improving the cleaning effect of tableware.
Patent Information
- Application Number
- CN202420587406.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-25
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-03-25
AI Technical Summary
The spray arm assembly of the existing dishwasher can only spray cleaning water in the set direction, resulting in some areas of the tableware being unable to be sprayed with cleaning water, affecting the cleaning effect of the dishwasher.
A spray arm assembly is designed, including a main spray arm, a secondary spray arm, an actuator and a driven member. By engaging the cooperation of the transmission and drive shaft, the reciprocating swing of the secondary spray arm relative to the main spray arm is achieved, providing multi-angle jet water flow.
Through the spraying of water from multiple angles, the tableware can be washed from different angles, reducing the washing corners and improving the cleaning effect of tableware.
Smart Images
Figure CN222899058U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of electrical appliances, and particularly relates to a spray arm assembly and a dishwasher. Background Art
[0002] In the related art, the cleaning water sprayed by the spray arm assembly of the dishwasher can only be sprayed in a set direction, resulting in some areas of the tableware not being sprayed by the cleaning water, which affects the cleaning effect of the dishwasher. Summary of the Invention
[0003] This application provides a spray arm assembly and a dishwasher, aiming to at least to some extent solve the technical problem that some areas of the tableware cannot be sprayed by the cleaning water, which affects the cleaning effect of the dishwasher.
[0004] In the first aspect of this application, a spray arm assembly is provided. The spray arm assembly includes: a spray arm base; a main spray arm rotatably connected to the spray arm base; a secondary spray arm communicating with the main spray arm and rotatably connected to the main spray arm, and a driving part is arranged on the secondary spray arm; a driving member connected to the spray arm base, a first bevel gear is arranged on the outer peripheral surface of the driving member; a driven member rotatably connected to the main spray arm, a second bevel gear is arranged on the outer peripheral surface of the driven member, and the second bevel gear meshes with the first bevel gear for transmission; a driving shaft eccentrically arranged on the end surface of the driven member, and the driving shaft is movably arranged in the driving part; wherein, under the condition that the driven member rotates around the driving member, the driving shaft slides in the driving part to drive the secondary spray arm to swing reciprocally relative to the main spray arm.
[0005] For the spray arm assembly provided by this application, since the main spray arm of the spray arm assembly is rotatably connected to the spray arm base and the driving member is connected to the spray arm base, under the condition that the main spray arm rotates relative to the spray arm base, the driving member is fixed relative to the spray arm base; since the driving member is connected to the spray arm base, a first bevel gear is arranged on the outer peripheral surface of the driving member, the driven member is rotatably connected to the main spray arm, a second bevel gear is arranged on the outer peripheral surface of the driven member, and the second bevel gear meshes with the first bevel gear for transmission, therefore, under the condition that the main spray arm rotates relative to the spray arm base, while the driven member rotates around the driving member, the driven member rotates itself; since the driving shaft is eccentrically arranged on the end surface of the driven member, the driving shaft also rotates synchronously with the driven member; in addition, since a driving part is arranged on the secondary spray arm and the driving shaft eccentrically arranged on the end surface of the driven member is movably arranged in the driving part, therefore, under the condition that the driven member rotates around the driving member and the driven member rotates itself, the driving shaft on the driven member slides in the driving part to drive the secondary spray arm to swing reciprocally relative to the main spray arm, so as to provide reciprocally swinging cleaning water to wash the tableware from different angles, reduce the washing dead angle, improve the cleaning effect of the tableware, and has good practicability.
[0006] In some embodiments, the middle part of the main spray arm is rotatably connected to the spray arm seat. One side of the main spray arm is provided with main water spray holes, and the other side of the main spray arm is provided with a receiving cavity for receiving the secondary spray arm. The secondary spray arm is provided with secondary water spray holes, and an avoidance opening is provided at the side part of the receiving cavity corresponding to the secondary water spray holes.
[0007] In some embodiments, the middle part of the main spray arm is rotatably connected to the spray arm seat. Receiving cavities are provided on both sides of the main spray arm for receiving the secondary spray arm. The secondary spray arm is provided with secondary water spray holes, and an avoidance opening is provided at the side part of the receiving cavity corresponding to the secondary water spray holes.
[0008] In some embodiments, a first rotating shaft is provided in the middle of the main spray arm, and the first rotating shaft is rotatably arranged in the spray arm seat.
[0009] In some embodiments, a part of the driving member is sleeved on the outer peripheral surface of the spray arm seat, and a bearing is provided between the other part of the driving member and the first rotating shaft.
[0010] In some embodiments, a second rotating shaft is provided on the outer peripheral surface of the first rotating shaft, and the driven member is rotatably connected to the second rotating shaft.
[0011] In some embodiments, a connecting protrusion is provided on the peripheral surface of the secondary spray arm. The connecting protrusion is arranged opposite to the end surface of the driven member, and the driving part is arranged on the connecting protrusion.
[0012] In some embodiments, the driving shaft movably passes through the driving part, and two limiting protrusions are arranged at intervals on the driving shaft. The two limiting protrusions are arranged on both sides of the driving part.
[0013] In some embodiments, a third rotating shaft is provided on the main spray arm. The secondary spray arm includes: a connecting member rotatably sleeved on the third rotating shaft, the driving part is arranged on the peripheral surface of the connecting member; a secondary arm body connected to the connecting member, and a plurality of secondary water spray holes are arranged at intervals on the secondary arm body.
[0014] In some embodiments, a stop block is provided on the peripheral surface of the third rotating shaft, a limiting member is provided at the end of the second rotating shaft, and the connecting member is provided with a rotating part sleeved between the stop block and the limiting member.
[0015] In some embodiments, two or more annular protrusions are arranged at intervals on the peripheral surface of the second rotating shaft. The connecting member includes a rotating part rotatably sleeved on the annular protrusions.
[0016] In some embodiments, the connecting member is further provided with a connecting portion, the connecting portion is disposed at an outer side of the limiting member with a gap therebetween, and the auxiliary arm body is connected within the connecting portion.
[0017] In a second aspect of the present application, the present application further provides a dishwasher, the dishwasher includes an inner container and the above-mentioned spray arm assembly, and the spray arm assembly is installed in the inner container.
[0018] The dishwasher provided by the present application can drive the auxiliary spray arm to swing reciprocally relative to the main spray arm to provide reciprocally swinging cleaning water, so as to wash tableware from different angles, reduce washing dead corners, improve the cleaning effect of tableware, and has good practicability. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.
[0020] Figure 1 shows a schematic structural diagram of a spray arm assembly in some embodiments;
[0021] Figure 2 shows Figure 1 a side view schematic diagram of;
[0022] Figure 3 shows Figure 1 a top view schematic diagram of;
[0023] Figure 4 shows Figure 3 an X-X cross-sectional schematic diagram of;
[0024] Figure 5 shows Figure 3 a Y-Y cross-sectional schematic diagram of;
[0025] Figure 6 shows Figure 1 an exploded schematic diagram of;
[0026] Figure 7 shows Figure 1 an exploded schematic diagram of another perspective of;
[0027] Figure 8 shows Figure 1 a schematic structural diagram of the spray arm base in;
[0028] Figure 9 shows Figure 1 a schematic structural diagram of the main spray arm in;
[0029] Figure 10 shows the structural schematic diagram of the driving member Figure 1 in
[0030] Figure 11 shows the layout schematic diagram of the driving part
[0031] Figure 12 shows Figure 1 the assembly schematic diagram of the drive shaft on the driven member in
[0032] Description of reference numerals:
[0033] Spray arm seat - 1, Rotation hole - 11
[0034] Main spray arm - 2, First rotating shaft - 21, Second rotating shaft - 22, Third rotating shaft - 23, Stopper - 24, Limiting member - 25, Annular protrusion - 26, Main water spray hole - 27, Accommodating cavity - 28, Avoidance opening - 29
[0035] Auxiliary spray arm - 3, Driving part - 31, Connecting protrusion - 32, Connecting member - 33, Rotating part - 331, Connecting part - 332, Auxiliary arm body - 34, Auxiliary water spray hole - 341
[0036] Driving member - 4, First bevel gear - 41, Mounting hole - 42, Snap - 43
[0037] Driven member - 5, Second bevel gear - 51
[0038] Drive shaft - 6, Limiting protrusion - 61
[0039] Bearing - 7
[0040] Gasket - 8 Detailed implementation manners
[0041] In order to enable those skilled in the art in the technical field to which the present application belongs to more clearly understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.
[0042] With the improvement of the material living standard, dishwashers that can liberate hands are gradually becoming a standard for quality life. Compared with traditional handwashing, dishwashers have advantages such as clean washing, sterilization, water and labor saving. Household dishwashers generally adopt a spray washing method. Driven by a washing pump, water flows through a rotating spray arm assembly to spray and wash the surface of tableware. In related technologies, the cleaning water sprayed by the spray arm assembly of the dishwasher can only be sprayed in a set direction, resulting in some areas of the tableware not being sprayed by the cleaning water, affecting the cleaning effect of the dishwasher.
[0043] In view of the above technical problems, the present application provides a spray arm assembly and a dishwasher, which can provide swinging water flow, wash tableware from different angles, reduce washing dead corners, and improve the cleaning effect.
[0044] In the first aspect of the present application, the present application provides a spray arm assembly. Figure 1 The structural schematic diagram of the spray arm assembly in some embodiments is shown. Figure 2 Shown is Figure 1 The side view schematic diagram of Figure 3 Shown is Figure 1 The top view schematic diagram of Figure 4 Shown is Figure 3 The X-X cross-sectional schematic diagram of Figure 5 Shown is Figure 3 The Y-Y cross-sectional schematic diagram of Figure 6 Shown is Figure 1 The explosion schematic diagram of Figure 7 Shown is Figure 1 The explosion schematic diagram from another perspective of Figures 1 - 7 Combined with
[0045] The spray arm assembly provided by the present application. Since the main spray arm 2 of the spray arm assembly is rotatably connected to the spray arm base 1, and the driving member 4 is connected to the spray arm base 1. Under the condition that the main spray arm 2 rotates relative to the spray arm base 1, the driving member 4 is fixed relative to the spray arm base 1. Since the driving member 4 is connected to the spray arm base 1, a first bevel gear 41 is provided on the outer peripheral surface of the driving member 4. The driven member 5 is rotatably connected to the main spray arm 2, and a second bevel gear 51 is provided on the outer peripheral surface of the driven member 5. The second bevel gear 51 and the first bevel gear 41 are in meshing transmission. Therefore, under the condition that the main spray arm 2 rotates relative to the spray arm base 1, while the driven member 5 rotates around the driving member 4, the driven member 5 rotates itself. Since the drive shaft 6 is eccentrically provided on the end surface of the driven member 5, the drive shaft 6 also rotates synchronously with the driven member 5. In addition, since a driving portion 31 is provided on the auxiliary spray arm 3, and the drive shaft 6 eccentrically provided on the end surface of the driven member 5 is movably provided in the driving portion 31. Therefore, under the condition that the driven member 5 rotates around the driving member 4 and the driven member 5 rotates itself, the drive shaft 6 on the driven member 5 slides in the driving portion 31 to drive the auxiliary spray arm 3 to swing reciprocally relative to the main spray arm 2, so as to provide cleaning water for reciprocating swing, so as to wash tableware from different angles, reduce the washing dead angle, improve the cleaning effect of tableware, and has good practicability.
[0046] Figure 8 shows Figure 1 the structural schematic diagram of the spray arm base in Figure 9 shows Figure 1 the structural schematic diagram of the main spray arm in Figures 4 - 9 Combined with
[0047] Combined with Figure 4 In some embodiments, the spray arm base 1 is fixedly arranged on the corresponding carrier, and the spray arm base 1 can be generally columnar. The spray arm base 1 is provided with a rotation hole 11 penetrating vertically. The main spray arm 2 can be rotatably connected to the rotation hole 11 of the spray arm base 1 through a first rotating shaft 21. The first rotating shaft 21 can be arranged along the thickness direction of the main spray arm 2, so that the main spray arm 2 rotates around the thickness direction of the main spray arm 2.
[0047] Combined with Figure 4 In some embodiments, the first rotating shaft 21 can be hollow, one end of which is communicated with a washing pump for conveying cleaning water, and the other end is communicated with the main spray arm 2. Since the auxiliary spray arm 3 is also communicated with the main spray arm 2, the cleaning water output by the washing pump can flow into the main spray arm 2 and the auxiliary spray arm 3 in sequence, and the cleaning water is sprayed through the main spray arm 2 and the auxiliary spray arm 3 to clean the tableware.
[0048] Figure 10 shows Figure 1 the structural schematic diagram of the driving member in Figures 4 - 10, in some embodiments, a part of the driving member 4 can be sleeved on the outer peripheral surface of the spray arm base 1 so that the driving member 4 can be fixed relative to the spray arm base 1. A bearing 7 can be provided between another part of the driving member 4 and the first rotating shaft 21 so that the driving member 4 and the first rotating shaft 21 are rotatably connected. Under the condition that the main spray arm 2 rotates relative to the spray arm base 1 around the first rotating shaft 21, the main spray arm 2 also rotates relative to the driving member 4.
[0049] Combined with Figure 4 and Figure 10 , specifically in implementation, an installation hole 42 is provided in the middle of the driving member 4. The aperture of the upper part of the installation hole 42 is larger than that of the lower part of the installation hole 42. The lower part of the installation hole 42 is sleeved on the outer peripheral surface of the spray arm base 1. A plurality of buckles 43 are provided at the bottom of the driving member 4 at intervals around its central axis. The driving member 4 is connected to the outer peripheral surface of the spray arm base 1 through a plurality of buckles 43 so that the driving member 4 and the spray arm base 1 are relatively fixed. In addition, the bearing 7 is arranged in the upper part of the installation hole 42. The outer ring of the bearing 7 can be snap-fitted or interference-fitted into the driving member 4, and the inner ring of the bearing 7 can also be interference-fitted or snap-fitted on the first rotating shaft 21 to reduce the relative friction between the first rotating shaft 21 and the driving member 4, ensure the smooth rotation, and at the same time also serves as a connection between the driving member 4 and the main spray arm 2 to ensure that the main spray arm 2 and the driving member 4 do not separate along the axial direction of the first rotating shaft 21.
[0050] Combined with Figure 4 、 Figure 6 and Figure 9 , in some embodiments, a second rotating shaft 22 is provided on the outer peripheral surface of the first rotating shaft 21. The second rotating shaft 22 can be arranged along the length direction of the main spray arm 2. The driven member 5 is rotatably connected to the second rotating shaft 22 so that the driven member 5 can be rotatably connected to the main spray arm 2 around the second rotating shaft 22.
[0051] Specifically in implementation, the second rotating shaft 22 can be connected to the part of the first rotating shaft 21 between the main spray arm 2 and the driving member 4. The second rotating shaft 22 can be integrally formed or connected to the peripheral surface of the first rotating shaft 21 by means of screw connection, etc. A bearing can also be provided between the driven member 5 and the second rotating shaft 22 to ensure the smooth rotation between the driven member 5 and the second rotating shaft 22.
[0052] In some embodiments, the drive shaft 6 can be connected to the end face of the driven member 5 by means of integral molding or screw connection, etc., and there is no limitation here.
[0053] Figure 11 Shows a layout schematic diagram of the driving part. Combined with Figure 4 、 Figure 6 、 Figure 7 and Figure 11, in some embodiments, connection protrusions 32 may be provided on the circumferential surface of the secondary spray arm 3. The connection protrusions 32 and the end face of the follower 5 are arranged opposite to each other, and the driving part 31 is provided on the above-mentioned connection protrusions 32.
[0054] Combined with Figure 11 , specifically in implementation, the connection protrusions 32 may be generally in a V-shaped structure. The larger end of it is connected to the circumferential surface of the secondary spray arm 3. The driving part 31 may be a driving hole provided on the connection protrusions 32, and the length direction of the driving hole may be arranged along the radial direction of the secondary spray arm 3 or close to the radial direction of the secondary spray arm 3.
[0055] Figure 12 Shows Figure 1 the assembly schematic diagram of the drive shaft on the follower in Figure 1 、 Figure 4 and Figure 12 , in some embodiments, the drive shaft 6 can movably pass through the above-mentioned driving part 31. Two limiting protrusions 61 may be arranged at intervals on the drive shaft 6, and the two limiting protrusions 61 are respectively arranged on both sides of the driving part 31. Under the condition that the drive shaft 6 moves in the above-mentioned driving part 31, the two limiting protrusions 61 can prevent the drive shaft 6 from separating from the above-mentioned driving part 31.
[0056] Specifically in implementation, the two limiting protrusions 61 can be integrally formed on the circumferential surface of the drive shaft 6. The two limiting protrusions 61 can be in an annular structure. Of course, they can also be in a square structure, etc., which is not limited here.
[0057] In other embodiments, the driving part 31 can also be a driving groove. Under the condition that the driving part 31 is a driving groove, the opening side of the driving part 31 faces the end face of the follower 5, and the end of the drive shaft 6 is movably arranged in the driving part 31.
[0058] Combined with Figure 4 、 Figure 6 、 Figure 7 and Figure 10 , in some embodiments, a third rotating shaft 23 may be provided on the main spray arm 2, and the third rotating shaft 23 may be arranged along the length direction of the main spray arm 2. The secondary spray arm 3 may include a connecting member 33 and a secondary arm body 34. Among them, the connecting member 33 is rotatably sleeved on the third rotating shaft 23, the secondary arm body 34 is connected to the connecting member 33, and a plurality of secondary water spray holes 341 are arranged at intervals on the secondary arm body 34 to realize the rotatable connection of the secondary spray arm 3 around the length direction of the main spray arm 2 and the main spray arm 2.
[0059] Combined with Figure 4 、 Figure 6 、 Figure 7 and Figure 10, in some embodiments, a stop block 24 may be provided on the circumferential surface of the third rotating shaft 23, and a limiting member 25 may be provided at the end of the third rotating shaft 23. The connecting member 33 is sleeved on the third rotating shaft 23 between the stop block 24 and the limiting member 25. The degrees of freedom in the axial direction of the connecting member 33 can be restricted by the stop block 24 and the limiting member 25, so that the connecting member 33 can only rotate around the third rotating shaft 23 and cannot move axially. Correspondingly, the connecting member 33 can only rotate around the third rotating shaft 23 and cannot move axially.
[0060] Combined with Figure 4 , Figure 6 , Figure 7 and Figure 10 , in some embodiments, a gasket 8 may be provided between the limiting member 25 and the connecting member 33 to buffer the collision and wear between the limiting member 25 and the connecting member 33.
[0061] During specific implementation, the stop block 24 may be annular and integrally formed at one end of the third rotating shaft 23 facing away from the auxiliary spray arm 3. The limiting member 25 is detachably connected to one end of the third rotating shaft 23 facing the auxiliary spray arm 3. After the rotating part 331 of the connecting member 33 and the gasket 8 are assembled in place, the limiting member 25 is then assembled onto one end of the second rotating shaft 22 facing the auxiliary spray arm 3.
[0062] In some embodiments, the limiting member 25 may be a swing latch structure. That is, first, the limiting member 25 is assembled on the third rotating shaft 23 in a pushing manner, and then the limiting member 25 is rotated so that the latch on the third rotating shaft 23 is embedded into the corresponding mounting hole 42 on the limiting member 25, so that the limiting member 25 is relatively fixedly assembled on the third rotating shaft 23, which is convenient, practical, simple and fast.
[0063] In other embodiments, the limiting member 25 may also be threadedly connected or welded to the third rotating shaft 23, which is not limited herein.
[0064] Combined with Figure 4 , Figure 6 , Figure 7 and Figure 10 , in some embodiments, two or more annular protrusions 26 may be provided at intervals on the circumferential surface of the third rotating shaft 23, and the rotating part 331 is rotatably sleeved on the two or more annular protrusions 26. The rotating part 331 of the connecting member 33 may be a hollow sleeve structure. By providing the annular protrusions 26 on the circumferential surface of the second rotating shaft 22, the rotating part 331 of the connecting member 33 can be in line contact with the circumferential surface of the second rotating shaft 22, so as to reduce the contact area between the rotating part 331 of the connecting member 33 and the circumferential surface of the third rotating shaft 23, and enable the connecting part 332 of the connecting member 33 to rotate smoothly on the third rotating shaft 23.
[0065] Combined with Figure 4 , Figure 6 ,Figure 7 and Figure 10 In some embodiments, the auxiliary arm body 34 of the auxiliary spray arm 3 can be sleeved on the outer peripheral surface of the connecting member 33 so that the auxiliary arm body 34 is fixedly connected to the connecting member 33 relatively to form the auxiliary spray arm 3 wound around the limiting member 25 and the third rotating shaft 23.
[0066] In some embodiments, the assembly manner of the auxiliary arm body 34 and the connecting member can be the same as the assembly manner of the limiting member 25 on the third rotating shaft 23, which will not be elaborated here. In other embodiments, the auxiliary arm body 34 can also be connected to the inner side of the connecting portion 332 and be disposed outside the limiting member 25 with a gap so that the auxiliary arm body 34 is connected to the connecting member 33 and can rotate relative to the limiting member 25 and the third rotating shaft 23, which is not limited here.
[0067] In some embodiments, the third rotating shaft 23 is hollowly arranged to introduce the cleaning water of the first rotating shaft 21 into the main spray arm 2 into the auxiliary spray arm 3 for spraying from the auxiliary water spray holes 341 on the auxiliary spray arm 3.
[0068] Combined with Figure 6 、 Figure 7 and Figure 11 In some embodiments, the connecting protrusion 32 of the driving portion 31 can be arranged on the circumferential surface of the connecting portion 332 of the connecting member 33. In other embodiments, the above-mentioned connecting protrusion 32 can also be arranged on the circumferential surface of the auxiliary arm body 34. Compared with the technical solution of arranging the connecting protrusion 32 on the connecting portion 332 of the connecting member 33, the technical solution of arranging the connecting protrusion 32 on the auxiliary arm body 34 requires a longer driving shaft 6 and belongs to an alternative solution.
[0069] Combined with Figure 1 、 Figure 3 and Figure 4 In some embodiments, the middle part of the main spray arm 2 is rotatably connected to the spray arm seat 1. One side of the main spray arm 2 is provided with main water spray holes 27, and the other side of the main spray arm 2 is provided with a receiving cavity 28 for receiving the auxiliary spray arm 3. The auxiliary spray arm 3 is provided with auxiliary water spray holes 341, and an avoidance opening 29 is arranged on the side of the receiving cavity 28 corresponding to the auxiliary water spray holes 341. When the spray arm assembly works, the main water spray holes 27 of the main spray arm 2 spray cleaning water, and the auxiliary water spray holes 341 on the auxiliary spray arm 3 spray cleaning water synchronously to form multi-angle spray water flows to wash the tableware from different angles, reduce the washing dead angles, improve the cleaning effect of the tableware, and have good practicability.
[0070] In other embodiments, the middle part of the main spray arm 2 is rotatably connected to the spray arm seat 1. Accommodating cavities 28 are arranged on both sides of the main spray arm 2 for accommodating the auxiliary spray arms 3. Auxiliary water spray holes 341 are arranged on the auxiliary spray arms 3, and avoidance openings 29 are arranged on the side parts of the accommodating cavities 28 corresponding to the auxiliary water spray holes 341. When the spray arm assembly works, the auxiliary water spray holes 341 on the two auxiliary spray arms 3 spray cleaning water synchronously to form spray water flows at multiple angles, so as to wash tableware from different angles, reduce washing dead corners, improve the cleaning effect of tableware, and have good practicability. Under the condition that the auxiliary water spray holes 341 on the two auxiliary spray arms 3 spray cleaning water synchronously, the two auxiliary spray arms 3 can have different swinging angles to form spray water flows at more angles, so as to improve the cleaning effect of tableware.
[0071] It should also be noted that when the spray arm assembly actually works, the cleaning water sprayed by the main spray arm 2 forms at least one angle of spray water flow. Combined with the spray water flow formed by the swinging angles of the two auxiliary spray arms 3, a better cleaning effect of tableware can be provided.
[0072] In the second aspect of the present application, the present application also provides a dishwasher, which includes an inner container and the above-mentioned spray arm assembly, and the spray arm assembly is installed in the inner container.
[0073] In the dishwasher provided by the present application, since the auxiliary spray arm 3 of the spray arm assembly can reciprocally swing around the length direction of the main spray arm 2 to provide reciprocally swinging cleaning water, so as to wash tableware from different angles, reduce washing dead corners, improve the cleaning effect of tableware, and have good practicability.
[0074] This dishwasher can be a household dishwasher. Of course, it can also be other cleaning equipment provided with a spray arm assembly, which is not limited here.
[0075] Since the dishwasher provided by the present application includes the spray arm assembly of any of the above technical solutions, this dishwasher has all the beneficial effects of the spray arm assembly of the above technical solutions, which will not be elaborated here.
[0076] In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.
[0077] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present application.
[0078] In the present application, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0079] In addition, in the present application, the descriptions such as "first", "second", etc. are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0080] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.
Claims
1. A spray arm assembly, characterized in that: The spray arm assembly comprises: Spray arm seat; A main spray arm is rotatably connected to the spray arm seat; An auxiliary spray arm is communicated with the main spray arm and is rotatably connected to the main spray arm, and a driving part is provided on the auxiliary spray arm; An active member connected to the spray arm seat, wherein the outer peripheral surface of the active member is provided with a first bevel gear; A driven member is rotatably connected to the main spray arm, a second bevel gear is provided on the outer peripheral surface of the driven member, and the second bevel gear is meshed with the first bevel gear for transmission; A drive shaft is eccentrically arranged on the end surface of the driven member, and the drive shaft is movably arranged in the drive part; wherein, under the condition that the driven member rotates around the active member, the drive shaft slides in the drive part to drive the auxiliary spray arm to swing back and forth relative to the main spray arm.
2. The spray arm assembly according to claim 1, characterized in that: The middle part of the main spray arm is rotatably connected to the spray arm seat, a main water spray hole is arranged on one side of the main spray arm, and a accommodating cavity is arranged on the other side of the main spray arm for accommodating the auxiliary spray arm, an auxiliary water spray hole is arranged on the auxiliary spray arm, and an avoidance opening is arranged on the side of the accommodating cavity corresponding to the auxiliary water spray hole.
3. The spray arm assembly according to claim 1, characterized in that: The middle part of the main spray arm is rotatably connected to the spray arm seat, and accommodating cavities are provided on both sides of the main spray arm for accommodating the auxiliary spray arm. The auxiliary spray arm is provided with an auxiliary water spray hole, and the accommodating cavity is provided with an avoidance opening on the side corresponding to the auxiliary water spray hole.
4. The spray arm assembly according to any one of claims 1 to 3, characterized in that: A first rotating shaft is arranged in the middle of the main spray arm, and the first rotating shaft is rotatably arranged in the spray arm seat.
5. The spray arm assembly according to claim 4, characterized in that: Part of the active component is sleeved on the outer circumferential surface of the spray arm seat, and a bearing is arranged between the other part of the active component and the first rotating shaft.
6. The spray arm assembly according to claim 4, characterized in that: A second rotating shaft is arranged on the outer circumferential surface of the first rotating shaft, and the driven member is rotatably connected to the second rotating shaft.
7. The spray arm assembly according to any one of claims 1 to 3 and 5 to 6, characterized in that: A connecting protrusion is arranged on the peripheral surface of the auxiliary spray arm, the connecting protrusion and the end surface of the driven member are arranged opposite to each other, and the driving part is arranged on the connecting protrusion.
8. The spray arm assembly according to claim 7, characterized in that: The driving shaft movably passes through the driving part. Two limiting protrusions are arranged on the driving shaft at intervals. The two limiting protrusions are arranged on both sides of the driving part.
9. The spray arm assembly according to claim 6, characterized in that: A third rotating shaft is provided on the main spray arm; The auxiliary spray arm comprises: A connecting member is rotatably mounted on the third rotating shaft, and the driving part is arranged on the peripheral surface of the connecting member; The auxiliary arm body is connected to the connecting piece, and a plurality of auxiliary water spray holes are arranged at intervals on the auxiliary arm body.
10. The spray arm assembly according to claim 9, characterized in that: A stopper is arranged on the circumferential surface of the third rotating shaft, a limiting member is arranged at the end of the second rotating shaft, and the connecting member is provided with a rotating portion sleeved between the stopper and the limiting member.
11. The spray arm assembly according to claim 10, characterized in that: Two or more annular protrusions are arranged at intervals on the circumferential surface of the second rotating shaft, and the connecting member includes a rotating portion, and the rotating portion is rotatably mounted on the annular protrusions.
12. The spray arm assembly according to claim 10 or 11, characterized in that: The connecting member is further provided with a connecting portion, the connecting portion gap is arranged outside the limiting member, and the auxiliary arm body is connected inside the connecting portion.
13. A dishwasher, characterized in that: The dishwasher comprises an inner tank and a spray arm assembly according to any one of claims 1 to 12, wherein the spray arm assembly is installed in the inner tank.