CN110859572A - Spray arm assembly and washing electric appliance with same - Google Patents
Spray arm assembly and washing electric appliance with same Download PDFInfo
- Publication number
- CN110859572A CN110859572A CN201810990355.8A CN201810990355A CN110859572A CN 110859572 A CN110859572 A CN 110859572A CN 201810990355 A CN201810990355 A CN 201810990355A CN 110859572 A CN110859572 A CN 110859572A
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- China
- Prior art keywords
- spray arm
- ball
- assembly
- sleeve
- seat
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- 239000007921 spray Substances 0.000 title claims abstract description 562
- 238000005406 washing Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 230000003313 weakening effect Effects 0.000 claims description 16
- 238000004140 cleaning Methods 0.000 abstract description 13
- 238000005096 rolling process Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000004851 dishwashing Methods 0.000 description 2
- 239000010794 food waste Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- A47L15/42—Details
- A47L15/4278—Nozzles
- A47L15/428—Rotary nozzles
-
- 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
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
The invention discloses a spray arm assembly and a washing appliance with the same. The spray arm assembly comprises a spray arm, a spray arm seat and a ball assembly, wherein the spray arm is connected with the spray arm seat, the spray arm can rotate relative to the spray arm seat, and the ball assembly is arranged at the connection matching position of the spray arm and the spray arm seat. According to the spray arm assembly, the spray arm seat is arranged to provide a connecting interface for the spray arm, the spray arm seat also serves as a water inlet pipeline of the spray arm, the spray arm and the spray arm seat are in rolling contact through the arrangement of the ball assembly, so that friction between the spray arm and the spray arm seat can be reduced, hydrodynamic loss is reduced, the utilization rate of hydrodynamic force is improved, the pressure of water sprayed out from a spray hole of the spray arm is high, the cleaning effect of a cleaning appliance on a part to be cleaned is improved, meanwhile, the height of the spray arm assembly can be effectively reduced through the ball connection between the spray arm and the spray arm seat, and the inner space of the cleaning appliance is saved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a spray arm assembly and a washing appliance with the same.
Background
The main mode that spray arm and spray arm seat are connected is through joint flange and buckle cooperation, but this kind of connected mode can lead to the clearance between spray arm and the spray arm seat great, and when washing electrical apparatus during operation, the water in the spray arm is revealed through this gap easily, influences the cleaning performance. In addition, when the spray arm and the spray arm seat generate relative motion, the friction mode between the spray arm and the spray arm seat is sliding friction, and therefore the lost hydrodynamic force is large. On the other hand, the buckle connection mode directly leads to the upper and lower height dimension of spouting arm seat and spouting arm great, has wasted the inner bag space of washing electrical apparatus like this, has reduced the inside space of putting of treating the washing piece of washing electrical apparatus.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, the invention provides a spray arm assembly which can reduce the friction force between a spray arm and a spray arm seat.
The invention also provides a washing electric appliance with the spray arm assembly.
The spray arm assembly according to an embodiment of the present invention includes: the spray arm comprises a spray arm, a spray arm seat and a ball assembly, wherein the spray arm is connected with the spray arm seat, the spray arm is rotatable relative to the spray arm seat, and the ball assembly is arranged at the connection matching position of the spray arm and the spray arm seat.
According to the spray arm assembly, the spray arm seat is arranged to provide a connecting interface for the spray arm, meanwhile, the spray arm seat also serves as a water inlet pipeline of the spray arm, the ball assembly is arranged between the spray arm and the spray arm seat, so that the spray arm and the spray arm seat are in rolling contact, friction between the spray arm and the spray arm seat can be reduced, hydrodynamic loss is reduced, the utilization rate of hydrodynamic force is improved, the pressure of water sprayed out of a spray hole of the spray arm is ensured to be high, the cleaning effect of a cleaning appliance on a workpiece to be cleaned is improved, meanwhile, the height of a water inlet of the spray arm can be effectively reduced through ball connection between the spray arm and the spray arm seat, and therefore the internal space of the cleaning appliance is saved.
According to some embodiments of the invention, the ball assembly comprises at least: a plurality of balls rollably fitted between the spray arm and the spray arm holder.
Further, the ball assembly further includes: the ball bearing device comprises a sleeve, wherein a plurality of ball holes are formed in the sleeve, balls are installed in the ball holes, and the balls protrude out of the inner circumferential surface and the outer circumferential surface of the sleeve in the radial direction of the sleeve.
Optionally, in the central axis direction of the sleeve, the ball holes are located in the middle of the sleeve, and the ball holes are uniformly arranged along the circumferential direction of the sleeve.
Optionally, in the central axis direction of the sleeve, the ball hole is located at the top or the bottom of the sleeve, the ball hole is a major arc hole, and a gap of the major arc hole forms a ball taking and placing opening.
Further, a weakening groove is arranged between every two adjacent ball holes.
Furthermore, a weakening groove upright post is arranged in the weakening groove.
Further, the spray arm includes: the spray arm comprises a spray arm body and a spray arm connecting sleeve, wherein the spray arm connecting sleeve is arranged on the lower side of the spray arm body, the spray arm connecting sleeve is provided with a spray arm cavity communicated with the spray arm body, and a spray arm seat cavity communicated with the spray arm cavity is arranged in a spray arm seat.
According to some embodiments of the invention, the spray arm adapter sleeve is at least partially disposed within the spray arm socket, a spray arm ball groove adapted to mate with the ball is disposed on an outer circumferential surface of the spray arm adapter sleeve, and a spray arm socket ball groove adapted to mate with the ball is disposed on an inner circumferential surface of the spray arm socket.
Further, the spray arm seat includes: the spray arm seat water inlet shaft is arranged above the spray arm seat annular wall, the spray arm seat water inlet shaft is arranged below the spray arm seat annular wall, and the spray arm seat ball groove is formed in the inner circumferential surface of the spray arm seat circumferential wall.
Optionally, the inner diameter of the water inlet shaft of the spray arm seat is equal to the inner diameter of the spray arm connecting sleeve.
Specifically, the top of the spray arm seat peripheral wall is provided with a spray arm seat top wall extending inwards in the radial direction of the spray arm seat peripheral wall, the gap between the upper surface of the spray arm seat top wall and the lower surface of the spray arm body is L1, and L1 satisfies the relation: l1 is more than 0mm and less than or equal to 0.5 mm.
Optionally, a gap between the inner circumferential surface of the spray arm base top wall and the outer circumferential surface of the sleeve is L2, and L2 satisfies the relation: l2 is more than 0mm and less than or equal to 0.5 mm.
Optionally, a gap between the upper surface of the spray arm seat ring wall and the lower surface of the spray arm connecting sleeve is L3, and L3 satisfies a relation: l3 is more than 0mm and less than or equal to 0.5 mm.
According to some embodiments of the invention, the spray arm socket is at least partially disposed within the spray arm adapter sleeve, the spray arm adapter sleeve having an inner circumferential surface with a spray arm ball groove adapted to mate with the ball, and the spray arm socket having an outer circumferential surface with a spray arm socket ball groove adapted to mate with the ball.
Optionally, a spray arm flange is arranged on the inner side of the spray arm connecting sleeve, a gap between the upper surface of the spray arm seat and the lower surface of the spray arm flange is L4, and L4 satisfies the relation: l4 is more than 0mm and less than or equal to 0.5 mm.
Specifically, a spray arm water inlet is formed in the spray arm flange, the spray arm base is provided with a spray arm base water inlet, and the inner diameter of the spray arm base water inlet is equal to that of the spray arm water inlet.
According to some embodiments of the invention, the spray arm ball groove, the spray arm seat ball groove and the ball hole are located at corresponding positions in the direction of the central axis of the spray arm connecting sleeve, and the spray arm ball groove and the spray arm seat ball groove are circumferential annular grooves.
According to another aspect of the invention, a washing appliance comprises the spray arm assembly described above.
Drawings
FIG. 1 is a front view of a first embodiment of a spray arm assembly;
FIG. 2 is a left side view of the first embodiment of the spray arm assembly;
FIG. 3 is a bottom view of the first embodiment of the spray arm assembly;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a partial enlarged view at C of FIG. 4;
FIG. 6 is an exploded view of the first embodiment of the spray arm assembly;
FIG. 7 is a schematic view of a spray arm seat of the first embodiment of the spray arm assembly;
FIG. 8 is a cross-sectional view of a second embodiment of the spray arm assembly;
FIG. 9 is a partial enlarged view of FIG. 8 at B;
FIG. 10 is an exploded view of the first embodiment of the spray arm assembly;
FIG. 11 is a schematic view of the ball holes being provided in the top of the sleeve;
FIG. 12 is a schematic view of the ball holes being provided in the bottom of the sleeve.
Reference numerals:
the spray arm assembly 1000, the spray arm 100, the spray arm body 110, the spray arm connecting sleeve 120, the spray arm ball groove 121, the spray arm chamber 130, the spray arm flange 111, the spray arm inlet 112, the spray arm base inlet 201, the spray arm base 200, the spray arm base ball groove 210, the spray arm base inlet 220, the spray arm base annular wall 230, the spray arm base peripheral wall 240, the spray arm base top wall 250, the spray arm base chamber 260, the ball assembly 300, the sleeve 310, the ball hole 311, the ball taking and placing opening 312, the weakening groove 313, the weakening groove upright post 314 and the ball 320.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The spray arm assembly 1000 according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 12. The spray arm assembly 1000 may be used in a washing appliance, and the structure of the spray arm assembly 1000 will be described below by taking the example of applying the spray arm assembly 1000 to a dishwasher.
Referring to fig. 3 to 6 and 8 to 10, a spray arm assembly 1000 according to an embodiment of the present invention may include: the spray arm 100, the spray arm seat 200 and the ball assembly 300.
Referring to fig. 1-2, the spray arm 100 is connected to the spray arm base 200, the spray arm base 200 is located below the spray arm 100, the spray arm 100 is rotatable relative to the spray arm base 200, a connection interface is provided for the spray arm 100 by providing the spray arm base 200, meanwhile, after the spray arm 100 is connected to the spray arm base 200 as a whole, the spray arm base 200 can also serve as a water inlet pipeline of the spray arm 100, and when a water source of the dishwasher is connected, water flows into the spray arm 100 from the spray arm base 200. In some embodiments, the spray arm 100 is provided with a water spraying hole and a driving hole, when the water pressure in the spray arm 100 reaches a certain value, the spray arm 100 starts to spray water columns through the water spraying hole and the driving hole, the spray arm 100 rotates by the reaction force when the water columns are sprayed, the water columns are continuously sprayed from the water spraying hole and the driving hole as the water columns are sprayed out, the spray arm 100 can continuously rotate, the water columns sprayed from the water spraying hole and the driving hole can be sprayed to the surface of tableware or the inner wall of the dishwasher as the spray arm 100 rotates, and then the stain on the tableware or the inner wall of the dishwasher is washed, so that the washing of the tableware by the dishwasher is completed. The direction and position of the water column sprayed on the tableware by the spray arm 100 are multidirectional, so that dead corners are reduced, the tableware is easier to clean, and the cleaning time is correspondingly reduced due to the larger coverage rate of the water stream, namely the cleaning time is favorably shortened.
As shown in fig. 4, 7 and 10, the ball assembly 300 is disposed at the connection fitting portion of the spray arm 100 and the spray arm base 200, the spray arm 100 and the spray arm base 200 are indirectly connected through the ball assembly 300, and the connection structure of the spray arm 100, the spray arm base 200 and the ball assembly 300 is simple and stable.
By providing the ball assembly 300, when the spray arm 100 rotates relative to the spray arm base 200, the friction between the spray arm 100 and the spray arm base 200 is rolling friction, which is not sliding friction before, so that the resistance of the rolling friction to the rotation of the spray arm 100 is small, thereby reducing the hydrodynamic loss caused by friction and improving the utilization rate of hydrodynamic force. Meanwhile, the spray arm 100 rotates relatively fast relative to the spray arm base 200, so that the arrangement of the ball assembly 300 is beneficial to improving the smoothness of the rotation of the spray arm 100, and is beneficial to reducing the noise of the dishwasher.
In addition, the ball assembly 300 is arranged between the spray arm 100 and the spray arm seat 200, the spray arm 100 and the spray arm seat 200 are skillfully connected into a whole, compared with the original mode that the spray arm 100 and the spray arm seat 200 are connected through a buckle, the height of the joint of the spray arm seat 200 and the spray arm 100 can be effectively reduced, so that the height size of the spray arm assembly 1000 is reduced, the internal space of the dishwasher is saved, more space is reserved for placing tableware, the tableware capacity of the dishwasher is further improved, and the internal loading capacity of the dishwasher can be increased by 10mm-40mm, for example.
According to the spray arm assembly 1000 of the embodiment of the invention, the spray arm seat 200 is arranged to provide a connection interface for the spray arm 100, meanwhile, the spray arm seat 200 also serves as a water inlet pipeline of the spray arm 100, and the ball assembly 300 is arranged between the spray arm 100 and the spray arm seat 200 to enable the spray arm 100 and the spray arm seat 200 to be in rolling contact, so that the friction force between the spray arm 100 and the spray arm seat 200 can be reduced, thereby being beneficial to reducing the hydrodynamic loss, improving the utilization rate of hydrodynamic force, ensuring that the pressure when water is sprayed out from the spray holes of the spray arm 100 is higher, and being beneficial to improving the cleaning effect of the dish-washing machine on tableware. Meanwhile, the spray arm 100 is connected with the spray arm base 200 through the ball assembly 300, so that the height of the spray arm assembly 1000 can be effectively reduced, the internal space of the dish washer is saved, more space is reserved for placing tableware, and the tableware capacity of the dish washer is improved.
Referring to fig. 6 and 10, the ball assembly 300 may include: the sleeve 310 and the balls 320, when the spray arm 100 rotates relative to the spray arm base 200, the balls 320 change the friction between the spray arm 100 and the spray arm base 200 into rolling friction, so that the friction force when the spray arm 100 rotates relative to the spray arm base 200 is ensured to be small, and the smoothness when the spray arm 100 rotates can be improved.
In an embodiment, the number of the balls 320 is plural, and the plural balls 320 may be uniformly distributed along the circumferential direction of the sleeve 310, thereby improving the smoothness of the rotation of the spray arm 100. Preferably, the number of the balls 320 is even, so that the ball assembly 300 can be uniformly stressed and the stress concentration phenomenon can be relieved.
Alternatively, the diameter of the balls 320 is 3mm to 8mm, and the number of the balls 320 is 4 to 12. The ball 320 can be plastics ball or stainless steel ball, because spray arm assembly 1000's operational environment has been full of water, spray arm assembly 1000 is in the damp and hot environment for a long time, easily leads to the rust jamming of ball 320, and plastics ball or stainless steel ball's anti-corrosion ability is stronger, can effectively slow down or even avoid ball 320 to rust.
The sleeve 310 is provided with a plurality of ball holes 311, the balls 320 are rotatably installed in the ball holes 311, the ball holes 311 support the balls 320, the relative positions of the balls 320 are guaranteed to be unchanged, collision and extrusion between the balls 320 are prevented, and therefore the working stability of the ball assembly 300 can be improved, and the smoothness of the spray arm 100 during rotation can be further improved. Alternatively, the number of balls 320 is the same as the number of ball holes 311.
The balls 320 protrude from the inner circumferential surface and the outer circumferential surface of the sleeve 310 in the radial direction of the sleeve 310, that is, the diameter of the balls 320 is larger than the wall thickness of the sleeve 310, the balls 320 have only a middle portion installed in the sleeve 310, the inner side of the balls 320 protrudes inwardly from the inner circumferential surface of the sleeve 310, the outer side of the balls 320 protrudes outwardly from the outer circumferential surface of the sleeve 310, the balls 320 are in rolling contact with the spray arm 100 and the spray arm base 200, and the balls 320 provide support for the connection of the spray arm 100 and the spray arm base 200. When the spray arm 100 and the spray arm base 200 rotate relatively, the spray arm 100 and the spray arm base 200 are contacted through the ball 320, so that rolling friction is generated between the spray arm 100 and the spray arm base 200.
Referring to fig. 6 and 10, in the central axis direction of the sleeve 310, the ball holes 311 are located in the middle of the sleeve 310, and the plurality of ball holes 311 are uniformly arranged along the circumferential direction of the sleeve 310, so that after the balls 320 are matched and connected with the ball holes 311, the balls 320 are uniformly distributed on the middle section circle of the sleeve 310, and the force bearing points of the ball assembly 300 during operation are located on the middle section circle of the ball assembly 300, thereby ensuring the operational stability and reliability of the ball assembly 300.
Referring to fig. 6 and 10, the spray arm 100 may include: the spray arm comprises a spray arm body 110 and a spray arm connecting sleeve 120, wherein the spray arm connecting sleeve 120 is arranged on the lower side of the spray arm body 110, the spray arm 100 and a spray arm seat 200 are convenient to connect through the spray arm connecting sleeve 120, and the spray arm 100 and the spray arm seat 200 can be reliably connected into a whole.
The spray arm connecting sleeve 120 and the spray arm body 110 are internally provided with a communicated spray arm chamber 130, and the spray arm seat 200 is internally provided with a spray arm seat chamber 260 communicated with the spray arm chamber 130, so that water from a water source of the dish washing machine can smoothly enter the spray arm chamber 130 through the spray arm seat chamber 260, and then the water is sprayed to the surface of tableware through the water spraying holes and the driving holes on the spray arm 100, thereby completing the operation of cleaning the tableware. Along with water continuously enters the spray arm chamber 130, the water pressure in the spray arm chamber 130 is higher and higher, the reaction force generated by the water column sprayed from the driving hole of the spray arm 100 is larger, the rotating speed of the spray arm 100 is higher, and meanwhile, the force of the sprayed water column beating on the tableware is larger, so that the tableware is favorably cleaned, and therefore, the better washing effect of the dishwasher can be ensured by arranging the spray arm chamber 130.
A first embodiment of the present invention will be described in detail with reference to fig. 1 to 7.
As shown in fig. 4-5, the spray arm connecting sleeve 120 and the spray arm seat 200 are both disposed under the spray arm body 110, and the spray arm connecting sleeve 120 is at least partially disposed in the spray arm seat 200, thereby being beneficial to improving the reliability of connection between the spray arm 100 and the spray arm seat 200, and after the spray arm 100 is connected with the spray arm seat 200 in a matching manner, the height of the spray arm assembly 1000 can be effectively reduced, thereby leaving more space for placing tableware, saving the internal space of the dishwasher, and improving the tableware capacity of the dishwasher.
Specifically, the outer circumferential surface of the nozzle arm connecting sleeve 120 is provided with a nozzle arm ball groove 121 adapted to be engaged with the ball 320, the inner circumferential surface of the nozzle arm base 200 is provided with a nozzle arm base ball groove 210 adapted to be engaged with the ball 320, and the ball 320 is in rolling contact with the nozzle arm ball groove 121 and the nozzle arm base ball groove 210, so that friction is small. In an exemplary embodiment, the diameters of the spray arm ball groove 121 and the spray arm seat ball groove 210 may be equal to the diameter of the ball 320, or may be slightly larger than the diameter of the ball 320, so as to ensure that the ball 320 is well matched with the spray arm ball groove 121 and the spray arm seat ball groove 210.
Specifically, when the ball assembly 300 is coupled with the spray arm 100 and the spray arm socket 200, the balls 320 protrude from the inner circumferential surface and the outer circumferential surface of the sleeve 310 in the radial direction of the sleeve 310, wherein the portion of the balls 320 protruding from the inner circumferential surface of the sleeve 310 can be engaged with the spray arm ball groove 121 of the spray arm connecting sleeve 120, which provides support for the installation of the spray arm 100 on the spray arm socket 200, and the portion of the balls 320 protruding from the outer circumferential surface of the sleeve 310 can be engaged with the spray arm socket ball groove 210 of the spray arm socket 200, which provides support for the installation of the spray arm socket 200 and the ball assembly 300, that is, the ball assembly 300 serves as a bridge at the coupling of the spray arm 100 and the spray arm socket 200, which connects the spray arm 100 and the spray arm socket 200 together skillfully, and at the same time, the spray arm 100 and the spray arm socket 200 are coupled via the balls 320, and when the spray arm 100 rotates relative to the spray arm socket 200, the friction therebetween is rolling friction, thereby reducing the, the hydrodynamic force is saved, and the high working reliability of the spray arm assembly 1000 is ensured.
Through the ball 320 and the spray arm ball groove 121, the spray arm seat ball groove 210 are matched in a rolling way, support is provided for the connection between the spray arm connecting sleeve 120 and the spray arm seat 200, meanwhile, the friction force between the spray arm 100 and the spray arm seat 200 is reduced, and the working reliability of the spray arm assembly 1000 is improved.
Further, as shown in fig. 6 to 7, the spray arm base 200 may include: the spray arm seat water inlet shaft 220, the spray arm seat peripheral wall 240 and the spray arm seat annular wall 230, the spray arm seat annular wall 230 is arranged between the spray arm seat water inlet shaft 220 and the spray arm seat peripheral wall 240, the spray arm seat peripheral wall 240 is arranged above the spray arm seat annular wall 230, the spray arm seat peripheral wall 240 is vertically connected with the spray arm seat annular wall 230 and is positioned at the lowest end of the spray arm seat peripheral wall 240 and the outermost end of the spray arm seat annular wall 230, the spray arm seat water inlet shaft 220 is arranged below the spray arm seat annular wall 230, the spray arm seat water inlet shaft 220 is vertically connected with the spray arm seat annular wall 230 and is positioned at the uppermost end of the spray arm seat water inlet shaft 220 and the innermost end of the spray arm seat annular wall 230, the spray arm seat peripheral wall 240 is parallel to the spray arm seat water inlet shaft 220, and the diameter of the spray arm seat peripheral wall 240 is larger than that of the spray arm seat water inlet shaft 220.
When the spray arm 100 is connected with the spray arm base 200 in a matching manner, the spray arm base water inlet shaft 220 is arranged under the spray arm connecting sleeve 120, therefore, a certain gap is formed between the spray arm connecting sleeve 120 and the spray arm base circumferential wall 240, the spray arm base ball groove 210 is arranged on the inner circumferential surface of the spray arm base circumferential wall 240, the spray arm ball groove 121 is arranged on the outer circumferential surface of the spray arm connecting sleeve 120, so that a space is provided for the arrangement of the ball assembly 300, the connection of the spray arm 100 and the spray arm base 200 can be completed, the height of the spray arm 100 connected with the spray arm base 200 can be effectively reduced, and more spaces are reserved for placing tableware. In addition, the ball assembly 300 is disposed above the nozzle arm base circumferential wall 230 and between the nozzle arm connecting sleeve 120 and the nozzle arm base circumferential wall 240, so that the ball assembly 300 can be protected to a certain extent, and the ball assembly 300 is prevented from being exposed to the outside and affecting the service life of the ball assembly 300.
Referring to fig. 4 to 5, the inner diameter of the spray arm socket water inlet shaft 220 is equal to the inner diameter of the spray arm coupling sleeve 120, when the water source of the dishwasher is turned on, water flows in from the spray arm socket water inlet shaft 220, then flows into the spray arm chamber 130 of the spray arm connecting sleeve 120, so that the inner diameter of the spray arm seat water inlet shaft 220 is equal to that of the spray arm connecting sleeve 120, the inner circumferential surface of the spray arm base water inlet shaft 220 and the inner circumferential surface of the spray arm connecting sleeve 120 are aligned in the same cylindrical surface, so that the hydrodynamic loss is reduced, the water flow speed of the spray arm base water inlet shaft 220 and the water flow speed of the spray arm connecting sleeve 120 are equal, the water flow speed of the water flow entering the spray arm cavity 130 is stable, thereby guarantee that the water pressure in the spray arm cavity 130 rises steadily, prevent to appear the velocity of flow sudden change at the junction of spray arm seat water inlet shaft 220 and spray arm adapter sleeve 120, guarantee that spray arm 100 can rotate steadily, and then guarantee that the operational reliability of spray arm subassembly 1000 is high.
Specifically, the top of the nozzle arm base peripheral wall 240 is provided with a nozzle arm base top wall 250 extending radially inward of the nozzle arm base peripheral wall 240, a gap between an inner peripheral surface of the nozzle arm base top wall 250 and an outer peripheral surface of the sleeve 310 is L2, and L2 satisfies the relation: l2 is more than 0mm and less than or equal to 0.5mm, the clearance between the upper surface of the spray arm seat top wall 250 and the lower surface of the spray arm body 110 is L1, and L1 satisfies the relation: l1 is more than 0mm and less than or equal to 0.5mm, the clearance between the upper surface of the spray arm seat ring wall 230 and the lower surface of the spray arm connecting sleeve 120 is L3, and L3 satisfies the relation: l3 is more than 0mm and less than or equal to 0.5mm, that is, there are gaps between the spray arm base top wall 250 and the sleeve 310, between the spray arm base top wall 250 and the spray arm body 110, and between the spray arm base annular wall 230 and the spray arm connecting sleeve 120, therefore, when the spray arm 100 and the spray arm base 200 rotate relatively, it can avoid the sliding friction caused by the contact between the inner circumferential surface of the spray arm base top wall 250 and the outer circumferential surface of the sleeve 310, between the upper surface of the spray arm base top wall 250 and the lower surface of the spray arm body 110, and between the upper surface of the spray arm base annular wall 230 and the lower surface of the spray arm connecting sleeve 120, so as to ensure that there is no other contact between the spray arm 100 and the spray arm base 200 except the contact with the balls 320 in the ball assembly 300, thereby preventing the sliding friction caused by the contact between the spray arm 100 and the spray arm base 200 when the spray arm 100 rotates, and consuming the power when the spray arm 100.
In some alternative embodiments, the gap value may be 0.1mm, 0.2mm or 0.3mm each.
By setting the gap, the spray arm 100 can be ensured to have higher speed when rotating, and the stability is better, in addition, by setting the gaps L1, L2 and L3 to be 0mm < L1 < 0.5mm, 0mm < L2 < 0.5mm and 0mm < L3 < 0.5mm, the friction between the spray arm 100 and the spray arm seat 200 can be prevented from being increased and the spray arm 100 can be even blocked because residual soup or other pollutants enter the gaps, and when the spray arm 100 inclines, the spray arm 100 can be quickly contacted with the spray arm seat 200, thereby preventing the spray arm 100 from further inclining. Meanwhile, the loss of hydrodynamic force due to serious water leakage between the spray arm seat annular wall 230 and the spray arm connecting sleeve 120 can also be prevented.
Based on the embodiments of fig. 4-5, the ball assembly 300 of the present invention can have various modifications, which fall into the scope of the present invention. One of the variations of the ball assembly 300 is outlined below in conjunction with fig. 4-5.
In this not shown variant, the ball assembly 300 comprises only: the plurality of balls 320, i.e., the sleeve 310 is reduced as compared to the embodiment of fig. 5 described above, and the plurality of balls 320 are rollably fitted between the arm connecting sleeve 120 of the arm 100 and the arm seat peripheral wall 240 of the arm seat 200.
A second embodiment of the present invention will be described in detail with reference to fig. 8 to 10.
Referring to fig. 8-9, the spray arm base 200 is at least partially disposed in the spray arm connecting sleeve 120, when the spray arm 100 is connected to the spray arm base 200, a portion of the spray arm base 200 is disposed in the spray arm connecting sleeve 120, a gap is formed between the portion of the spray arm connecting sleeve 120 and the inner circumferential surface of the spray arm connecting sleeve 120, a spray arm ball groove 121 adapted to cooperate with a ball 320 is disposed on the inner circumferential surface of the spray arm connecting sleeve 120, and a spray arm base ball groove 210 adapted to cooperate with the ball 320 is disposed on the outer circumferential surface of the spray arm base 200, so that a space is provided for disposing the ball assembly 300, and the connection between the spray arm 100 and the spray arm base 200 can be completed, the height of the spray arm 100 connected to the spray arm base 200 can be effectively reduced, so that more space is left for disposing tableware, the inner space of the dishwasher can be saved, and the tableware capacity of the dishwasher can be increased.
Alternatively, the inner side of the nozzle arm connecting sleeve 120 is provided with a nozzle arm flange 111, and when the nozzle arm 100 is connected to the nozzle arm base 200, the inner circumferential surface of the nozzle arm flange 111 and the inner circumferential surface of the nozzle arm base 200 are in the same cylindrical surface.
The gap between the upper surface of the spray arm base 200 and the lower surface of the spray arm flange 111 is L4, and L4 satisfies the relation: the distance between the spray arm seat 200 and the spray arm flange 111 is 0mm < L4 ≤ 0.5mm, that is, a gap is formed between the spray arm seat 200 and the spray arm flange 111, so that when the spray arm 100 and the spray arm seat 200 rotate relatively, sliding friction caused by contact between the upper surface of the spray arm seat 200 and the lower surface of the spray arm flange 111 can be avoided, and no other contact is ensured between the spray arm 100 and the spray arm seat 200 except for contact with the balls 320 in the ball assembly 300, thereby preventing sliding friction caused by contact between the spray arm 100 and the spray arm seat 200 when the spray arm 100 rotates, and consuming power when the spray arm 100 rotates.
In some alternative embodiments, the gap between the upper surface of the spray arm base 200 and the lower surface of the spray arm flange 111 may be 0.1mm, or may be 0.2mm or 0.3 mm.
By setting the gap, it is possible to ensure a high speed of the spray arm 100 when rotating and a good smoothness, and in addition, by setting the gap L4 to 0mm < L4 < 0.5mm, it is possible to prevent leftover food or other contaminants from entering the gap and increasing the friction between the spray arm 100 and the spray arm holder 200 or even locking the spray arm 100, and it is also possible to prevent water from entering too much between the spray arm holder 200 and the spray arm flange 111 and causing hydrodynamic loss, and when the spray arm 100 is tilted, the spray arm flange 111 can be brought into contact with the spray arm holder 200 quickly, thereby preventing the spray arm 100 from further tilting.
Referring to fig. 8 to 10, specifically, the spray arm flange 111 is formed with a spray arm inlet 112, the spray arm base 200 has a spray arm base inlet 201, and the inner diameter of the spray arm base inlet 201 is equal to the inner diameter of the spray arm inlet 112, when a water source of the dishwasher is opened, water flows from the spray arm base 200 and then flows into the spray arm chamber 130, so that the inner diameter of the spray arm base inlet 201 is equal to the inner diameter of the spray arm inlet 112, it is ensured that the water flow rates in the spray arm base 200 and the spray arm base inlet 201 are equal, the water flow rate of the water flowing into the spray arm chamber 130 is stable, thereby ensuring that the water pressure in the spray arm chamber 130 rises stably, preventing a sudden change in the water flow rate at the connection between the spray arm base 200 and the spray arm 100, ensuring that the spray arm 100 can rotate stably, and ensuring that the spray arm assembly 1000 has high operational reliability.
In the central axis direction of the spray arm connecting sleeve 120, the positions of the spray arm ball groove 121, the spray arm seat ball groove 210 and the ball hole 311 correspond, the ball 320 is partially disposed in the ball hole 311, as shown in fig. 4 to 6, the outer side of the ball 320 contacts with the spray arm seat ball groove 210, the inner side of the ball 320 contacts with the spray arm ball groove 121, as shown in fig. 8 to 10, the outer side of the ball 320 contacts with the spray arm ball groove 121, the inner side of the ball 320 contacts with the spray arm seat ball groove 210, thereby completing the connection of the spray arm 100 and the spray arm seat 200, and the positions of the spray arm ball groove 121, the spray arm seat ball groove 210 and the ball hole 311 correspond to each other, so that when the spray arm 100 rotates, the ball 320 slides in a track different from the tracks of the spray arm ball groove 121 and the spray arm seat ball groove 210, thereby being pressed, and causing the spray arm 100 to rotate inefficiently.
The spray arm ball groove 121 and the spray arm seat ball groove 210 are circumferential annular grooves, and the spray arm 100 rotates relative to the axis of the spray arm seat 200, so that the spray arm ball groove 121 and the spray arm seat ball groove 210 are circumferential annular grooves, and the spray arm 100 can be guaranteed to smoothly rotate in a whole circle, and the spray arm assembly 1000 is guaranteed to work reliably.
In the central axis direction of the sleeve 310, the position of the ball hole 311 is not limited to the middle portion of the sleeve 310, for example, as shown in fig. 11, the ball hole 311 may be located at the top of the sleeve 310, and for example, as shown in fig. 12, the ball hole 311 is located at the bottom of the sleeve 310.
The ball hole 311 is a major arc hole, and a notch of the major arc hole forms a ball pick-and-place opening 312. The major-arc hole is a hole having a central angle greater than 180 ° and less than 360 °, so that most of each ball 320 is located in the ball hole 311, and the ball 320 is prevented from falling out of the ball hole 311 after installation. When installing ball 320, can put the mouth with the help of external force and strut, install ball 320 in ball hole 311 through the ball is got the mouth afterwards, remove external force afterwards, the elastic deformation of ball hole 311 disappears thereupon, and ball hole 311 reconversion, ball hole 311 tightly wraps up ball 320 this moment for the installation of ball 320 in ball hole 311 is more firm, reliable.
Further, a weakening groove 313 is arranged between two adjacent ball holes 311, and a weakening groove column 314 is arranged in the weakening groove 313. Optionally, the central axis of the weakening groove column 314 is parallel to the central axis of the sleeve 310, thereby facilitating a simplified machining process of the sleeve 310. By providing the weakening groove 313, the rigidity between the adjacent two ball holes 311 can be made small, whereby the ball holes 311 are easily deformed when the balls 330 are mounted, thereby reducing the difficulty in mounting or dismounting the balls 330. In addition, the weakening groove pillar 314 can play a certain reinforcing role, so that the weakening groove 313 is prevented from excessively weakening the rigidity of the sleeve 310, and the working reliability of the ball assembly 300 is improved.
The sleeve 310 functions mainly in three points: (1) the sleeve 310 is provided with the ball hole 311, and the ball 320 is arranged in the ball hole 311, so that the position of the ball 320 can be fixed and limited, and the ball 320 is prevented from being accumulated; (2) the food residue is isolated, and the small food residues are prevented from entering the ball groove to cause friction; (3) the spray arm 100 can be isolated from vibration, and the spray arm 100 is prevented from shaking seriously.
Based on the embodiment of fig. 8-9, the ball assembly 300 of the present invention can have various modifications, which fall into the scope of the present invention. One of the variations of the ball assembly 300 is outlined below in conjunction with fig. 8-9.
In this not shown variant, the ball assembly 300 comprises only: the plurality of balls 320, i.e., the sleeve 310 is reduced compared to the embodiment of fig. 5 and 9 described above, and the plurality of balls 320 are rollably fitted between the nozzle arm adapter 120 of the nozzle arm 100 and the nozzle arm base 200.
The washing appliance according to another aspect of the present invention includes the spray arm assembly 1000 of the above embodiment. The washing electric appliance can be a dish washer, and can also be the washing electric appliances that have washing functions such as fruit and vegetable cleaning machine, medical cleaning machine, and its effect is similar with the effect of setting up spray arm subassembly 1000 in the dish washer, and the repeated description is no longer given here.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (20)
1. A spray arm assembly, comprising:
a spray arm;
the spray arm is connected with the spray arm seat, and the spray arm can rotate relative to the spray arm seat;
the ball assembly is arranged at the connection and matching position of the spray arm and the spray arm seat.
2. The spray arm assembly of claim 1 wherein the ball assembly comprises at least: a plurality of balls rollably fitted between the spray arm and the spray arm holder.
3. The spray arm assembly of claim 2 wherein the ball assembly further comprises: the ball bearing device comprises a sleeve, wherein a plurality of ball holes are formed in the sleeve, balls are installed in the ball holes, and the balls protrude out of the inner circumferential surface and the outer circumferential surface of the sleeve in the radial direction of the sleeve.
4. The spray arm assembly of claim 3 wherein the ball hole is located at a middle portion of the sleeve in a direction of a central axis of the sleeve, and a plurality of the ball holes are uniformly arranged in a circumferential direction of the sleeve.
5. The spray arm assembly of claim 3 wherein the ball hole is located at the top or bottom of the sleeve in the direction of the central axis of the sleeve, the ball hole is a major arc hole and the gap of the major arc hole forms a ball access opening.
6. The spray arm assembly of claim 3 or 5, wherein a weakening groove is provided between two adjacent ball holes.
7. The spray arm assembly of claim 6 wherein said weakening groove has a weakening groove post disposed therein.
8. The spray arm assembly of claim 2, wherein the spray arm comprises: the spray arm comprises a spray arm body and a spray arm connecting sleeve, wherein the spray arm connecting sleeve is arranged on the lower side of the spray arm body, and the spray arm connecting sleeve is at least partially arranged in a spray arm seat.
9. The spray arm assembly of claim 8, wherein the spray arm adapter sleeve is provided on an outer circumferential surface thereof with a spray arm ball groove adapted to engage the ball, and the spray arm socket is provided on an inner circumferential surface thereof with a spray arm socket ball groove adapted to engage the ball.
10. The spray arm assembly of claim 9, wherein the spray arm socket comprises: the spray arm seat water inlet shaft is arranged above the spray arm seat annular wall, the spray arm seat water inlet shaft is arranged below the spray arm seat annular wall, and the spray arm seat ball groove is formed in the inner circumferential surface of the spray arm seat circumferential wall.
11. The spray arm assembly of claim 10, wherein the spray arm base water inlet shaft has an inner diameter equal to an inner diameter of the spray arm adapter sleeve.
12. The spray arm assembly of claim 10, wherein the top of the spray arm base peripheral wall is provided with a spray arm base top wall extending radially inward of the spray arm base peripheral wall, a gap between an upper surface of the spray arm base top wall and a lower surface of the spray arm body is L1, and L1 satisfies the relationship: l1 is more than 0mm and less than or equal to 0.5 mm.
13. The spray arm assembly of claim 12 wherein the ball assembly further comprises: a sleeve provided with a plurality of ball holes in which the balls are installed, the balls protruding from inner and outer circumferential surfaces of the sleeve in a radial direction of the sleeve;
the clearance between the inner peripheral surface of the spray arm seat top wall and the outer peripheral surface of the sleeve is L2, and L2 satisfies the relation: l2 is more than 0mm and less than or equal to 0.5 mm.
14. The spray arm assembly of claim 10, wherein a gap between the upper surface of the spray arm seat surround and the lower surface of the spray arm connection sleeve is L3, and L3 satisfies the relationship: l3 is more than 0mm and less than or equal to 0.5 mm.
15. The spray arm assembly of claim 2, wherein the spray arm comprises: the spray arm comprises a spray arm body and a spray arm connecting sleeve, wherein the spray arm connecting sleeve is arranged on the lower side of the spray arm body, and the spray arm seat is at least partially arranged in the spray arm connecting sleeve.
16. The spray arm assembly of claim 15 wherein said spray arm adapter sleeve has an inner peripheral surface provided with spray arm ball grooves adapted to engage said balls and said spray arm socket has an outer peripheral surface provided with spray arm socket ball grooves adapted to engage said balls.
17. The spray arm assembly of claim 15 or 16, wherein the spray arm connecting sleeve is provided with a spray arm flange at the inner side, the gap between the upper surface of the spray arm seat and the lower surface of the spray arm flange is L4, and L4 satisfies the relation: l4 is more than 0mm and less than or equal to 0.5 mm.
18. The spray arm assembly of claim 17 wherein the spray arm flange has a spray arm inlet formed therein, the spray arm base having a spray arm base inlet, the spray arm base inlet having an inner diameter equal to the inner diameter of the spray arm inlet.
19. The spray arm assembly of claim 9 or 16, wherein the spray arm ball groove and the spray arm base ball groove are correspondingly positioned in the central axis direction of the spray arm connecting sleeve, and the spray arm ball groove and the spray arm base ball groove are circumferential annular grooves.
20. A washing appliance, characterized in that it comprises a spray arm assembly according to any one of claims 1-19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810990355.8A CN110859572A (en) | 2018-08-28 | 2018-08-28 | Spray arm assembly and washing electric appliance with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810990355.8A CN110859572A (en) | 2018-08-28 | 2018-08-28 | Spray arm assembly and washing electric appliance with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110859572A true CN110859572A (en) | 2020-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810990355.8A Pending CN110859572A (en) | 2018-08-28 | 2018-08-28 | Spray arm assembly and washing electric appliance with same |
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|---|---|---|---|---|
| US20040069332A1 (en) * | 2002-03-07 | 2004-04-15 | Lebaron Forrest L. | Spray arm hub/head for ware washer |
| JP2006020894A (en) * | 2004-07-09 | 2006-01-26 | Hitachi Home & Life Solutions Inc | Dishwasher |
| EP2848316A1 (en) * | 2013-09-17 | 2015-03-18 | Guggenberger Reinigungstechnik e. K. | Rotary nozzle |
| CN105231970A (en) * | 2015-10-23 | 2016-01-13 | 佛山市顺德区美的洗涤电器制造有限公司 | Spray arm assembly used for dish-washing machine |
| CN207470617U (en) * | 2017-07-31 | 2018-06-08 | 深圳市景阳科技股份有限公司 | The connection structure of rotating device |
| CN208973740U (en) * | 2018-08-28 | 2019-06-14 | 佛山市顺德区美的洗涤电器制造有限公司 | Gushing arm component and washing electric appliance with it |
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2018
- 2018-08-28 CN CN201810990355.8A patent/CN110859572A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040069332A1 (en) * | 2002-03-07 | 2004-04-15 | Lebaron Forrest L. | Spray arm hub/head for ware washer |
| JP2006020894A (en) * | 2004-07-09 | 2006-01-26 | Hitachi Home & Life Solutions Inc | Dishwasher |
| EP2848316A1 (en) * | 2013-09-17 | 2015-03-18 | Guggenberger Reinigungstechnik e. K. | Rotary nozzle |
| CN105231970A (en) * | 2015-10-23 | 2016-01-13 | 佛山市顺德区美的洗涤电器制造有限公司 | Spray arm assembly used for dish-washing machine |
| CN207470617U (en) * | 2017-07-31 | 2018-06-08 | 深圳市景阳科技股份有限公司 | The connection structure of rotating device |
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