CN113907681B - Spray arm assembly and dish washer with same - Google Patents
Spray arm assembly and dish washer with same Download PDFInfo
- Publication number
- CN113907681B CN113907681B CN202111122890.XA CN202111122890A CN113907681B CN 113907681 B CN113907681 B CN 113907681B CN 202111122890 A CN202111122890 A CN 202111122890A CN 113907681 B CN113907681 B CN 113907681B
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- Prior art keywords
- spray arm
- sliding ring
- wall
- ring
- seat
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
- A47L15/18—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with movably-mounted spraying devices
- A47L15/22—Rotary spraying devices
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
- A47L15/4217—Fittings for water supply, e.g. valves or plumbing means to connect to cold or warm water lines, aquastops
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4278—Nozzles
- A47L15/428—Rotary nozzles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
The present application relates to a spray arm assembly for a dishwasher, the spray arm assembly comprising: a spray arm seat; the support seat is connected with the spray arm seat; the first spray arm is sleeved on the supporting seat and communicated with the spray arm seat; a first bearing including a first slip ring and a second slip ring slidable relative to each other; the first spray arm is provided with a first water inlet and a first flow guide pipe positioned at the periphery of the first water inlet, the first sliding ring is sleeved on the outer wall of the first flow guide pipe, the second sliding ring is arranged on the inner wall of the supporting seat and positioned outside the first sliding ring, the inner wall of the first sliding ring is provided with a first annular bulge, the outer wall of the first flow guide pipe is provided with a first annular groove, and/or the outer wall of the second sliding ring is provided with a second annular bulge, the inner wall of the supporting seat is provided with a second annular groove, and the first spray arm can rotate relative to the spray arm seat through the first sliding ring and the second sliding ring. The first spray arm in the spray arm assembly is connected with the spray arm seat through the first bearing, so that friction resistance is reduced.
Description
The application relates to a divisional application of an application patent application with the application number of 201910240001.6 and the name of 'spray arm assembly and dish washer with the same' which is applied for the 27 th of 2019, 03 month.
Technical Field
The application relates to the technical field of kitchen supplies, in particular to a spray arm assembly and a dish washer with the same.
Background
This section provides merely background information related to the present disclosure and is not necessarily prior art.
With the improvement of the living standard of substances, dish washers capable of freeing hands are gradually becoming standard of quality living. Compared with the traditional hand washing, the dish washing machine has the advantages of cleaning, sterilizing, saving water and labor and the like. The household dish washing machine generally adopts a spray type washing mode, water flows are sprayed to wash the surface of tableware through a rotary spray arm under the drive of a washing pump, and the washing effect of the spray type washing mode is closely related to the design of the spray arm. The most common existing dish-washing machines adopt a single-layer spray arm structure and a double-layer spray arm structure: the single-layer spray arm structure comprises a spray arm and a spray arm seat, wherein the spray arm is connected with the spray arm seat through a buckle, and a certain gap is reserved between the spray arm and the spray arm seat, so that the spray arm can smoothly rotate on the spray arm seat; the double-layer spray arm structure comprises an upper spray arm, a lower spray arm and a spray arm seat, wherein the lower spray arm is connected with the spray arm seat through a buckle, the upper spray arm is connected with the lower spray arm through a buckle, the upper spray arm and the lower spray arm in the double-layer spray arm structure reversely rotate, the spray angle is not single, and the forward and reverse sprayed water flow can generate kneading force, so that the cleaning effect is effectively improved.
The spray arm structure on the existing dish washer can achieve the purpose of washing the tableware in the dish washer to a certain extent, but in the actual use process, the following problems exist:
1) In the conventional single-layer spray arm structure, the spray arm and the spray arm seat are connected through a buckle, and a certain gap exists between the spray arm and the spray arm seat due to the fact that the spray arm and the spray arm seat need to rotate relatively, so that a part of water flow leaks through the gap.
2) The lower spray arm and the spray arm seat in the double-layer spray arm structure, and the upper spray arm and the lower spray arm are connected by adopting buckles, so that the double-layer spray arm is seriously decompressed, and the friction resistance during rotation is larger, thereby greatly reducing the cleaning effect of the double-layer spray arm structure on tableware in a dish washer.
Disclosure of Invention
The present application aims to solve at least one of the technical problems in the related art to some extent. Therefore, the application provides a spray arm assembly, wherein a first spray arm in the spray arm assembly is connected with a spray arm seat through a first bearing, so that friction resistance when the first spray arm rotates relative to the spray arm seat is reduced, and the rotation smoothness of the first spray arm and the washing effect of the spray arm assembly are improved.
In order to achieve the above object, a first aspect of the present application provides a spray arm assembly for a dishwasher, the spray arm assembly comprising a spray arm seat; the support seat is connected with the spray arm seat; the first spray arm is sleeved on the supporting seat and communicated with the spray arm seat; the first bearing comprises a first sliding ring and a second sliding ring which can slide relatively to each other, the first sliding ring is arranged on the first spray arm, the second sliding ring is arranged on the supporting seat, the first spray arm can rotate relative to the spray arm seat through the first sliding ring and the second sliding ring, a first water inlet is formed in the first spray arm, a first guide pipe is arranged on the periphery of the first water inlet on the first spray arm, the second sliding ring is located outside the first sliding ring, the second sliding ring is arranged on the inner wall of the supporting seat, the first sliding ring is sleeved on the outer wall of the first guide pipe, a first annular bulge is arranged on the inner wall of the first sliding ring, a first annular groove matched with the first annular bulge is formed in the outer wall of the first guide pipe, and/or a second annular bulge is formed in the outer wall of the second sliding ring, and a second annular groove matched with the second annular bulge is formed in the inner wall of the supporting seat.
According to the spray arm assembly, the first spray arm in the spray arm assembly is connected with the spray arm seat through the first bearing, so that friction resistance of the first spray arm when rotating relative to the spray arm seat is reduced, and the rotating smoothness of the first spray arm and the washing effect of the spray arm assembly are improved.
In addition, the spray arm assembly according to the application can also have the following additional technical characteristics:
according to one embodiment of the application, the spray arm seat is provided with a water outlet, a communicating pipe is also arranged between the water outlet and the supporting seat on the spray arm seat, and the supporting seat is sleeved on the communicating pipe.
According to one embodiment of the application, the supporting seat is detachably sleeved on the spray arm seat and comprises a base sleeved on the spray arm seat and a limiting ring arranged on the periphery of the base.
According to one embodiment of the application, a first annular groove is arranged on the base at a position in the limiting ring, a first opening communicated with the first annular groove is arranged on the pipe wall of the limiting ring, and a gap is formed between the first limiting rib and the first opening.
According to one embodiment of the application, the bottom of the base is provided with a first notch, the communicating pipe is provided with a second notch corresponding to the first notch, and the clamping slag between the communicating pipe and the base can flow out through the first notch and the second notch.
According to one embodiment of the application, the periphery of the first spray arm, which is positioned at the first water inlet, is provided with a first limit rib corresponding to the supporting seat, and when the first spray arm is mounted on the spray arm seat, the first limit rib is matched with the first notch on the limit ring.
According to one embodiment of the application, the spray arm assembly further comprises a second spray arm pivotally connected to the first spray arm via a second bearing, and a second water inlet on the second spray arm is in communication with the first water outlet of the first spray arm.
According to one embodiment of the application, a first mounting ring and a second mounting ring which are distributed at intervals are arranged on the periphery of the first water outlet on the first spray arm, a second guide pipe is arranged on the periphery of the second water inlet on the second spray arm, the second guide pipe is sleeved on the outer wall of the first mounting ring, and the second bearing is arranged between the second guide pipe and the second mounting ring.
According to one embodiment of the application, the second bearing comprises a third sliding ring and a fourth sliding ring sliding relative to each other, the inner wall of the third sliding ring being provided with a third annular projection, the outer wall of the second flow conduit being provided with a third annular groove cooperating with the third annular projection, and/or the outer wall of the fourth sliding ring being provided with a fourth annular projection, the inner wall of the second mounting ring being provided with a fourth annular groove cooperating with the fourth annular projection.
According to one embodiment of the application, a second annular groove is arranged between the first mounting ring and the second mounting ring, and a second opening communicated with the second annular groove is arranged on the second mounting ring.
According to one embodiment of the application, a second limiting rib corresponding to the second mounting ring is arranged on the periphery of the second water inlet on the second spray arm, and the second limiting rib is matched with a second notch on the second mounting ring when the second spray arm is mounted on the second spray arm.
A second aspect of the application provides a dishwasher having a washing chamber and a spray arm assembly according to the first aspect of the application disposed within the washing chamber.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic view of a first spray arm and a spray arm seat according to an embodiment of the present application;
FIG. 2 is a schematic view of a first bearing according to an embodiment of the present application;
FIG. 3 is a schematic view of a support base on the spray arm base shown in FIG. 1;
FIG. 4 is a partial cross-sectional view of the mounting structure of the first spray arm and the spray arm base shown in FIG. 1;
FIG. 5 is a schematic view illustrating the structure of a first spray arm and a second spray arm according to an embodiment of the present application;
FIG. 6 is a schematic view of the first spray arm shown in FIG. 5;
FIG. 7 is a schematic view of the second spray arm shown in FIG. 5;
FIG. 8 is a partial cross-sectional view of the mounting structure of the first spray arm and the second spray arm shown in FIG. 5;
FIG. 9 is a schematic view of a spray arm assembly according to an embodiment of the present application;
FIG. 10 is a partial cross-sectional view of the spray arm assembly of FIG. 9;
FIG. 11 is a partial cross-sectional view of the mounting structure within the spray arm assembly of FIG. 9;
wherein, the reference numerals are as follows:
10. a spray arm seat; 11. a water outlet; 12. a support base; 121. a base; 122. a limiting ring; 123. a first annular groove; 124. a first opening; 13. a communicating pipe; 20. a first spray arm; 21. a first water inlet; 22. a first draft tube; 23. the first limit rib; 24. a first water outlet; 25. a first mounting ring; 251. a second annular groove; 26. a second mounting ring; 261. a second opening; 30. a second spray arm; 31. a second water inlet; 32. a second flow guide pipe; 33. the second limit rib; 100. a first bearing; 110. a first slip ring; 111. a first annular projection; 120. a second slip ring; 130. a second annular projection; 200. a second bearing; 210. a third slip ring; 220. and a fourth sliding ring.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, the application of the spray arm assembly to the dish washer is only a preferred embodiment of the present application, and is not a limitation on the application range of the spray arm assembly of the present application, for example, the spray arm assembly of the present application is applied to other washing devices, and the adjustment belongs to the protection range of the spray arm assembly of the present application.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are inclusive and therefore specify the presence of stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof.
In the description of the present application, unless explicitly stated and limited otherwise, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present application can be understood by those skilled in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
For ease of description, spatially relative terms, such as "upper," "outer," "peripheral," "inner," and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the mechanism in use or operation in addition to the orientation depicted in the figures. For example, if the mechanism in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" may include both upper and lower orientations. The mechanism may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
As shown in fig. 1 to 4, according to an embodiment of the present application, there is provided a spray arm assembly for a dishwasher, the spray arm assembly including a spray arm mount 10; the support seat 12 is connected to the spray arm seat 10; the first spray arm 20 is sleeved on the supporting seat 12 and communicated with the spray arm seat 10; the first bearing 100, the first bearing 100 includes a first sliding ring 110 and a second sliding ring 120 that can slide relative to each other, the first sliding ring 110 is disposed on the first spray arm 20, the second sliding ring 120 is disposed on the support base 12, and the first spray arm 20 can rotate relative to the spray arm base 10 through the first sliding ring 110 and the second sliding ring 120.
According to the spray arm assembly of the application, the first spray arm 20 and the spray arm seat 10 in the spray arm assembly are connected through the support seat 12 and the first bearing 100, so that the friction resistance of the first spray arm 20 when rotating relative to the spray arm seat 10 is reduced, and the rotation smoothness of the first spray arm 20 and the washing effect of the spray arm assembly are improved. Specifically, the spray arm assembly of this embodiment is disposed in a washing chamber of a dishwasher, the spray arm assembly may be disposed at the bottom of the washing chamber, and may also be disposed at the top of the washing chamber, the spray arm base 10 is communicated with the first spray arm 20 and provides washing liquid into the first spray arm 20, a plurality of nozzles are disposed on the first spray arm 20, the washing liquid flowing into the first spray arm 20 through the spray arm base 10 may be sprayed through the plurality of nozzles, and the washing liquid sprayed from the plurality of nozzles is sprayed onto tableware in the dishwasher, thereby achieving the purpose of washing tableware in the dishwasher. Further, in order to increase the coverage area of the washing liquid sprayed by the first spray arm 20, the first spray arm 20 in the spray arm assembly of the present embodiment can rotate relative to the spray arm base 10, and the first spray arm 20 sprays the washing liquid to the dishes in the washing chamber while rotating, so as to increase the washing area of the first spray arm 20. Preferably, in order to reduce the friction resistance when the first spray arm 20 rotates relative to the spray arm base 10, the present embodiment connects the first spray arm 20 and the spray arm base 10 through the support base 12 and the first bearing 100, specifically, the first sliding ring 110 and the second sliding ring 120 on the first bearing 100 are respectively disposed on the support base 12 and the first spray arm 20, so as to transfer the rotational friction between the first spray arm 20 and the spray arm base 10 to the rotational friction between the first sliding ring 110 and the second sliding ring 120. Preferably, the first bearing 100 may be a ball bearing, and balls are disposed between the first sliding ring 110 and the second sliding ring 120. Preferably, the first bearing 100 may also be a needle bearing, and a needle is disposed between the first sliding ring 110 and the second sliding ring 120. Preferably, the first bearing 100 may also be a sliding bearing, and an oil film is disposed between the first sliding ring 110 and the second sliding ring 120. Preferably, the first sliding ring 110 and the second sliding ring 120 of the first bearing 100 are not limited to horizontal distribution, and the first sliding ring 110 and the second sliding ring 120 may be distributed up and down, for example, the first sliding ring 110 is disposed on the upper surface of the second sliding ring 120, and balls, rolling pins, or oil films are disposed between the first sliding ring 110 and the second sliding ring 120. It should be noted that, as can be appreciated by those skilled in the art, the first bearing 100 in the present embodiment is not limited to the above four bearings, and other bearings capable of meeting the requirements of the spray arm assembly in the present embodiment also belong to the protection scope of the first bearing 100 in the present embodiment, and will not be described herein.
With continued reference to fig. 1 to 4, according to an embodiment of the present application, a first water inlet 21 is provided on the first spray arm 20, a first flow guiding pipe 22 is provided on the first spray arm 20 at the periphery of the first water inlet 21, and a first sliding ring 110 is sleeved on the first flow guiding pipe 22.
In this embodiment, the first sliding ring 110 and the second sliding ring 120 are respectively sleeved on the first guide tube 22 and the supporting seat 12, and the supporting seat 12 and the first guide tube 22 provide an installation space for the first bearing 100, so as to improve the installation applicability of the first bearing 100. Preferably, the first sliding ring 110 may be further sleeved on the outer wall of the supporting seat 12, and the second sliding ring 120 may be sleeved on the inner wall of the first guiding tube 22, where the supporting seat 12 is inserted into the first guiding tube 22 through the first bearing 100. Preferably, the second sliding ring 120 may be sleeved on the inner wall of the supporting seat 12, and correspondingly, the first sliding ring 110 is sleeved on the outer wall of the first guiding tube 22, at this time, the first guiding tube 22 is inserted into the supporting seat 12 through the first bearing 100, and an embodiment of the first guiding tube 22 being inserted into the supporting seat 12 through the first bearing 100 will be described in detail below. Preferably, the first sliding ring 110 may be further sleeved at the end of the supporting seat 12, the second sliding ring 120 may be sleeved at the end of the first guiding tube 22, and the second sliding ring 120 presses on the upper surface of the first sliding ring 110, where the first guiding tube 22 presses on the supporting seat 12 through the first bearing 100.
With continued reference to fig. 1 to 4, according to an embodiment of the present application, the second sliding ring 120 is located outside the first sliding ring 110, the second sliding ring 120 is disposed on the inner wall of the supporting seat 12, and the first sliding ring 110 is sleeved on the outer wall of the first guiding tube 22.
In this embodiment, the outer wall of the first flow guiding tube 22 is provided with a section of annular mounting surface, the first sliding ring 110 is mounted on the annular mounting surface of the first flow guiding tube 22 and is in interference fit with the first flow guiding tube 22, the inner wall of the supporting seat 12 is provided with a section of annular mounting surface, the second sliding ring 120 is mounted on the annular mounting surface of the supporting seat 12 and is in interference fit with the supporting seat 12, when the first spray arm 20 rotates relative to the spray arm seat 10, the first sliding ring 110 rotates relative to the second sliding ring 120, so that the rotation friction between the first spray arm 20 and the spray arm seat 10 is transferred to the friction between the first sliding ring 110 and the second sliding ring 120, thereby reducing the rotation friction force when the first spray arm 20 rotates relative to the spray arm seat 10 and improving the rotation smoothness of the first spray arm 20. The first spray arm 20 of the embodiment is assembled to the spray arm base 10 through the first bearing 100, so that not only the friction resistance of the first spray arm 20 when rotating relative to the spray arm base 10 can be reduced, but also the tightness between the first spray arm 20 and the spray arm base 10 can be improved, and the leakage of the washing liquid from the gap between the spray arm base 10 and the first spray arm 20 can be reduced.
With continued reference to fig. 1 to 4, according to one embodiment of the present application, the inner wall of the first sliding ring 110 is provided with a first annular protrusion 111, the outer wall of the first flow guiding tube 22 is provided with a first annular groove (not shown in the drawings) that mates with the first annular protrusion 111, and/or the outer wall of the second sliding ring 120 is provided with a second annular protrusion 130, and the inner wall of the supporting seat 12 is provided with a second annular groove (not shown in the drawings) that mates with the second annular protrusion 130.
In this embodiment, the first annular protrusion 111 and the second annular protrusion 130 have a certain flexibility, for example, the first annular protrusion 111 and the second annular protrusion 130 may be made of rubber, so that the first annular protrusion 111 may be extruded into the first annular groove of the first flow guiding tube 22, and the second annular protrusion 130 may be extruded into the second annular groove of the supporting seat 12, thereby improving the tightness and the connection stability between the first bearing 100 and the first flow guiding tube 22 and the supporting seat 12. It should be noted that, in this embodiment, only the first annular protrusion 111 may be disposed on the first sliding ring 110, or only the second annular protrusion 130 may be disposed on the second sliding ring 120, which may also improve the tightness and connection stability between the first bearing 100 and the first flow guiding tube 22 and the supporting seat 12.
With continued reference to fig. 1 to 4, according to an embodiment of the present application, a water outlet 11 is provided on a spray arm base 10, a communicating pipe 13 is further provided on the spray arm base 10 between the water outlet 11 and a supporting base 12, and the supporting base 12 is sleeved on the communicating pipe 13.
In this embodiment, the communicating pipe 13 surrounds the water outlet 11 of the spray arm seat 10, and the support seat 12 is sleeved on the communicating pipe 13 for assembling the first spray arm 20. Preferably, the first guide pipe 22 can be further inserted into the communicating pipe 13 of the spray arm base 10 on the basis of being inserted into the supporting base 12, and further, a sealing member is further disposed between the outer wall of the first guide pipe 22 and the inner wall of the communicating pipe 13, so as to improve the connection tightness between the spray arm base 10 and the first spray arm 20, and reduce the outflow of the washing liquid through the gap between the first guide pipe 22 and the spray arm base 10.
With continued reference to fig. 3 and 4, according to an embodiment of the present application, the support base 12 is detachably sleeved on the communication pipe 13, and the support base 12 includes a base 121 sleeved on the communication pipe 13 and a limiting ring 122 disposed on a periphery of the base 121.
In this embodiment, a circular mounting hole is provided on the base 121, the base 121 is mounted to the communicating pipe 13 of the spray arm base 10 through the circular mounting hole, a limiting ring 122 is provided on the periphery of the upper surface of the base 121, and when the first spray arm 20 is mounted to the spray arm base 10, the first flow guide 22 on the first spray arm 20 is mounted into the limiting ring 122 of the support base 12 through the first bearing 100. Further, the periphery of the lower surface of the base 121 is provided with a clamping block structure and a clamping structure which are distributed at intervals, the outer wall of the communicating pipe 13 is provided with a clamping groove structure which is matched with the clamping block structure, the supporting seat 12 is clamped on the outer wall of the communicating pipe 13 of the spray arm seat 10 through the clamping block and the clamping groove, so that the phenomenon that the supporting seat 12 rotates relative to the spray arm seat 10 in the rotation process of the first spray arm 20 is reduced, further, the outer wall of the communicating pipe 13 is provided with a stepped clamping groove which is matched with the clamping structure at intervals, and the supporting seat 12 is clamped on the outer wall of the communicating pipe 13 through the clamping structure and the stepped clamping groove, so that the supporting seat 12 falls off from the communicating pipe 13 in the rotation process of the first spray arm 20 is reduced.
With continued reference to fig. 3, according to an embodiment of the present application, a first annular groove 123 is disposed on the base 121 at a position located in the limiting ring 122, and a first opening 124 communicating with the first annular groove 123 is disposed on a pipe wall of the limiting ring 122.
In this embodiment, the first bearing 100 is mounted on the base 121 and is located in the limiting ring 122 of the base 121, impurities such as some clamping slag and the like inevitably occur in the first bearing 100 during use, the impurities increase friction force of the first bearing 100 in the first bearing 100, the first bearing 100 is worn out after long-term use, so that the first bearing 100 is damaged and fails, in order to reduce the impurities such as clamping slag and the like in the first bearing 100, in order to reduce the influence of the impurities such as clamping slag and the like on the first bearing 100, a first annular groove 123 is formed in a position, located in the limiting ring 122, on the base 121, of the first bearing 100, the first annular groove 123 provides a circulation space for the clamping slag in the first bearing 100, and when the clamping slag in the first bearing 100 flows out from the first bearing 100, the clamping slag can enter the first annular groove 123, and meanwhile, the first annular groove 123 forms a stepped surface on the base 121, so that the mounting tightness of the first bearing 100 is improved. Further, in this embodiment, the first opening 124 that is communicated with the first annular groove 123 is provided on the pipe wall of the limiting ring 122, so that the clamping slag in the first annular groove 123 can flow out from the base 121 through the first opening 124, and the phenomenon that the clamping slag in the first annular groove 123 reenters the first bearing 100 is reduced. Specifically, when the spray arm assembly is in operation through water, the first sliding ring 110 and the second sliding ring 120 of the first bearing 100 can slightly shake up and down, and the first spray arm 20 moves the first sliding ring 110 upwards relative to the second sliding ring 120 under the reaction force of water flow, so that smaller clamping slag in the first bearing 100 can flow into the first annular groove 123 along with the water flow through the gap between the lower surface of the first bearing 100 and the base 121, and flow out from the first gap 124 on the limiting ring 122 communicated with the first annular groove 123. Further, a first notch (not shown) is provided at the bottom of the base 121, and a second notch (not shown) corresponding to the first notch is provided on the communicating pipe 13, so that the slag between the communicating pipe 13 and the base 121 can flow out through the first notch and the second notch, thereby effectively improving the problem that the slag is accumulated between the communicating pipe 13 and the base 121, and facilitating cleaning of the slag between the communicating pipe 13 and the base 121.
With continued reference to fig. 1 and 3, according to an embodiment of the present application, a first limiting rib 23 corresponding to the support base 12 is disposed on the periphery of the first water inlet 21 of the first spray arm 20, and when the first spray arm 20 is mounted on the spray arm base 10, the first limiting rib 23 cooperates with a first notch 124 on the limiting ring 122, and a gap is formed between the first limiting rib 23 and the first notch 124.
In this embodiment, the first limiting rib 23 has a limiting effect on the limiting ring 122, so that the shaking phenomenon of the first spray arm 20 relative to the spray arm seat 10 after the first guide pipe 22 on the first spray arm 20 is assembled into the limiting ring 122 on the spray arm seat 10 is reduced. Preferably, the first spacing rib 23 of this embodiment is four spacing ribs distributed along the periphery of the first water inlet 21, the four spacing ribs are distributed in four first openings 124 around the first water inlet 21, and the four spacing ribs extend obliquely outward of the first water inlet 21, so the four spacing ribs also have a guiding effect on the spacing ring 122, the assembly smoothness of the first spray arm 20 and the spray arm seat 10 is improved, and further, an installation boss for installing the first bearing 100 is further provided between the first water inlet 21 and the first spacing rib 23, and the installation boss can reduce the abrasion of the first bearing 100 to the first spray arm 20. Preferably, the number of the first cutouts 124 in this embodiment may be plural, for example, four, and correspondingly, the number of the first stop ribs 23 is the same as the number of the first cutouts 124. Preferably, when the first limiting rib 23 of the present embodiment is assembled into the first opening 124, a gap is formed between the first limiting rib 23 and two sidewalls of the first opening 124, so that the clamping slag can flow out from the gap.
As shown in fig. 5 to 8, the spray arm assembly further includes a second spray arm 30, the second spray arm 30 being pivotally connected to the first spray arm 20 by a second bearing 200, and a second water inlet 31 (shown in fig. 7) on the second spray arm 30 being in communication with the first water outlet 24 of the first spray arm 20.
The second spray arm 30 of the present embodiment rotates reversely relative to the first spray arm 20, the second spray arm 30 and the first spray arm 20 improve the washing effect of the spray arm assembly by forward and reverse spraying, and further, the second spray arm 30 is connected with the first spray arm 20 by the second bearing 200, so that the friction resistance of the second spray arm 30 when rotating relative to the first spray arm 20 is reduced, and the rotation smoothness of the second spray arm 30 and the washing effect of the spray arm assembly are improved.
With continued reference to fig. 5 to 8, according to an embodiment of the present application, a first installation ring 25 and a second installation ring 26 are disposed on the first spray arm 20 and located at the periphery of the first water outlet 24 at intervals, a second guide pipe 32 is disposed on the second spray arm 30 and located at the periphery of the second water inlet 31, the second guide pipe 32 is sleeved on the outer wall of the first installation ring 25, and the second bearing 200 is installed between the second guide pipe 32 and the second installation ring 26.
The first mounting ring 25 and the second mounting ring 26 of the present embodiment provide a suitable assembly space for the second bearing 200, and meanwhile, the first mounting ring 25 can be inserted into the second guide pipe 32, so that a step seal is formed between the first mounting ring 25 and the second guide pipe 32, thereby improving the tightness between the second spray arm 30 and the first spray arm 20, reducing the shaking phenomenon between the second spray arm 30 and the first spray arm 20, and reducing the phenomenon that the washing liquid in the first spray arm 20 flows out from the gap between the first spray arm 20 and the second spray arm 30. Preferably, a second annular groove 251 may be further disposed between the first mounting ring 25 and the second mounting ring 26, and a second opening 261 communicating with the second annular groove 251 may be further disposed on the second mounting ring 26, so that the slag in the second bearing 200 may flow out through the second annular groove 251 and the second opening 261, reducing the phenomenon that the slag in the second bearing 200 wears the second bearing 200, and simultaneously, the second annular groove 251 forms a stepped surface between the first mounting ring 25 and the second mounting ring 26, thereby improving the installation tightness of the second bearing 200. Preferably, a second limiting rib 33 corresponding to the second mounting ring 26 is arranged on the periphery of the second water inlet 31 on the second spray arm 30, and when the second spray arm 30 is mounted on the second spray arm 30, the second limiting rib 33 is matched with the second notch 261 on the second mounting ring 26. In this embodiment, the second spacing rib 33 has a spacing effect on the second mounting ring 26, so that the shaking phenomenon of the second spray arm 30 relative to the first spray arm 20 after the second flow guiding pipe 32 on the second spray arm 30 is assembled to the second spray arm 30 is reduced. Preferably, the second spacing ribs 33 in this embodiment are four spacing ribs distributed along the periphery of the second water inlet 31, and the four spacing ribs are distributed around the periphery of the second water inlet 31 and extend obliquely outward of the second water inlet 31, so that the four spacing ribs also have guiding function on the second mounting ring 26, so as to improve the smoothness of assembling the second spray arm 30 and the first spray arm 20, and further, an installation boss for installing the second bearing 200 is further provided between the second water inlet 31 and the second spacing ribs 33, and the installation boss can reduce the abrasion of the second bearing 200 on the second spray arm 30. Further, the second bearing 200 includes a third sliding ring 210 and a fourth sliding ring 220 (as shown in fig. 8) sleeved outside the third sliding ring 210, the inner wall of the third sliding ring 210 is provided with a third annular protrusion, the outer wall of the second guide tube 32 is provided with a third annular groove matching the third annular protrusion, and/or the outer wall of the fourth sliding ring 220 is provided with a fourth annular protrusion, and the inner wall of the second installation ring 26 is provided with a fourth annular groove matching the fourth annular protrusion, thereby improving the sealing performance and connection stability between the second bearing 200 and the second guide tube 32 and the second installation ring 26.
As shown in fig. 9 to 11, a second aspect of the present application proposes a dishwasher having a washing chamber and a spray arm assembly according to the first aspect of the present application provided in the washing chamber.
According to the dishwasher of the embodiment, the spray arm assembly can be arranged at the bottom of the washing cavity in the dishwasher, can also be arranged at the top of the washing cavity, the spray arm seat 10 is communicated with the first spray arm 20 and is used for providing washing liquid into the first spray arm 20, a plurality of nozzles are arranged on the first spray arm 20, the washing liquid flowing into the first spray arm 20 through the spray arm seat 10 can be sprayed out through the plurality of nozzles, the washing liquid sprayed out from the plurality of nozzles is sprayed onto tableware in the dishwasher, so that the purpose of washing the tableware in the dishwasher is achieved, the first spray arm 20 and the second spray arm 30 are communicated and are used for providing the washing liquid into the second spray arm 30, a plurality of nozzles are arranged on the second spray arm 30, the washing liquid flowing into the second spray arm 30 through the first spray arm 20 can be sprayed out through the plurality of nozzles, and the washing liquid sprayed out from the plurality of nozzles is sprayed onto the tableware in the dishwasher, and the purpose of washing the tableware in the dishwasher is achieved. Further, the second spray arm 30 rotates in a reverse direction with respect to the first spray arm 20, and the second spray arm 30 and the first spray arm 20 enhance the washing effect of the spray arm assembly by spraying in a forward and reverse direction. Further, the first spray arm 20 is connected with the spray arm seat 10 through the first bearing 100, and the second spray arm 30 is connected with the first spray arm 20 through the second bearing 200, so that the rotation smoothness of the first spray arm 20 and the second spray arm 30 is improved, the assembly tightness of the spray arm assembly is improved, the phenomenon that the first bearing 100 and the second bearing 200 are worn out when the clamping slag in the washing liquid enters the first bearing 100 and the second bearing 200 is reduced, and the working efficiency and the working stability of the spray arm assembly are improved.
The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (12)
1. A spray arm assembly for a dishwasher, the spray arm assembly comprising:
a spray arm seat;
the supporting seat is connected with the spray arm seat;
the first spray arm is sleeved on the supporting seat and is communicated with the spray arm seat;
the first bearing comprises a first sliding ring and a second sliding ring which can slide relatively to each other, the first sliding ring is arranged on the first spray arm, the second sliding ring is arranged on the supporting seat, the first spray arm can rotate relatively to the spray arm seat through the first sliding ring and the second sliding ring, a first water inlet is formed in the first spray arm, a first guide pipe is arranged on the periphery of the first water inlet, the second sliding ring is arranged outside the first sliding ring, the second sliding ring is arranged on the inner wall of the supporting seat, the first sliding ring is sleeved on the outer wall of the first guide pipe, a first annular protrusion is arranged on the inner wall of the first sliding ring, a first annular groove matched with the first annular protrusion is formed in the outer wall of the first guide pipe, and/or a second annular protrusion is arranged on the outer wall of the second sliding ring, and a second annular groove matched with the second annular protrusion is formed in the inner wall of the supporting seat.
2. The spray arm assembly of claim 1, wherein the spray arm seat is provided with a water outlet, a communicating pipe is further arranged between the water outlet and the supporting seat on the spray arm seat, and the supporting seat is sleeved on the communicating pipe.
3. The spray arm assembly of claim 2, wherein the support base is detachably sleeved on the communicating pipe, and the support base comprises a base sleeved on the communicating pipe and a limiting ring arranged on the periphery of the base.
4. A spray arm assembly according to claim 3, wherein a first annular groove is provided in the base at a location within the stop collar, and a first opening is provided in the wall of the stop collar in communication with the first annular groove.
5. The spray arm assembly of claim 4, wherein a first notch is provided at the bottom of the base, a second notch corresponding to the first notch is provided on the communicating tube, and the slag between the communicating tube and the base can flow out through the first notch and the second notch.
6. The spray arm assembly of claim 4, wherein a first spacing rib corresponding to the support base is disposed on the first spray arm at the periphery of the first water inlet, the first spacing rib cooperates with the first gap on the spacing ring when the first spray arm is mounted to the spray arm base, and a gap is provided between the first spacing rib and the first gap.
7. The spray arm assembly of claim 1, further comprising a second spray arm pivotally connected to the first spray arm by a second bearing, and a second water inlet on the second spray arm is in communication with the first water outlet of the first spray arm.
8. The spray arm assembly of claim 7, wherein a first mounting ring and a second mounting ring are arranged on the first spray arm at intervals on the periphery of the first water outlet, a second guide pipe is arranged on the second spray arm at intervals on the periphery of the second water inlet, the second guide pipe is sleeved on the outer wall of the first mounting ring, and the second bearing is arranged between the second guide pipe and the second mounting ring.
9. The spray arm assembly of claim 8, wherein the second bearing comprises a third sliding ring and a fourth sliding ring slidable relative to each other, an inner wall of the third sliding ring being provided with a third annular protrusion, an outer wall of the second nozzle being provided with a third annular groove cooperating with the third annular protrusion, and/or an outer wall of the fourth sliding ring being provided with a fourth annular protrusion, an inner wall of the second mounting ring being provided with a fourth annular groove cooperating with the fourth annular protrusion.
10. The spray arm assembly of claim 8, wherein a second annular groove is disposed between the first mounting ring and the second mounting ring, and a second opening is disposed in the second mounting ring and is in communication with the second annular groove.
11. The spray arm assembly of claim 10, wherein a second spacing rib corresponding to the second mounting ring is provided on the second spray arm at a periphery of the second water inlet, the second spacing rib mating with the second gap on the second mounting ring when the second spray arm is mounted to the second spray arm.
12. A dishwasher, characterized in that it has a washing chamber and a spray arm assembly according to any one of claims 1 to 11 provided within the washing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111122890.XA CN113907681B (en) | 2018-08-28 | 2019-03-27 | Spray arm assembly and dish washer with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018109890755 | 2018-08-28 | ||
| CN2018214109520 | 2018-08-28 | ||
| CN201821410952 | 2018-08-28 | ||
| CN201810989075 | 2018-08-28 | ||
| CN201910240001.6A CN109875476B (en) | 2018-08-28 | 2019-03-27 | Spray arm assembly and dish washing machine with same |
| CN202111122890.XA CN113907681B (en) | 2018-08-28 | 2019-03-27 | Spray arm assembly and dish washer with same |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910240001.6A Division CN109875476B (en) | 2018-08-28 | 2019-03-27 | Spray arm assembly and dish washing machine with same |
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| CN113907681A CN113907681A (en) | 2022-01-11 |
| CN113907681B true CN113907681B (en) | 2023-08-18 |
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| CN201910240001.6A Active CN109875476B (en) | 2018-08-28 | 2019-03-27 | Spray arm assembly and dish washing machine with same |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910240001.6A Active CN109875476B (en) | 2018-08-28 | 2019-03-27 | Spray arm assembly and dish washing machine with same |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111035343A (en) * | 2019-12-24 | 2020-04-21 | 珠海格力电器股份有限公司 | Spray arm structure and dish washer |
| CN111345760B (en) * | 2020-04-09 | 2021-04-30 | 海信(广东)厨卫系统有限公司 | Dish washing machine |
| CN112107268B (en) * | 2020-08-31 | 2022-03-18 | 宁波方太厨具有限公司 | Cleaning machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113907681A (en) | 2022-01-11 |
| CN109875476A (en) | 2019-06-14 |
| CN109875476B (en) | 2022-04-26 |
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