CN104905752B - Spraying arm of dish washer device and dish-washing machine - Google Patents
Spraying arm of dish washer device and dish-washing machine Download PDFInfo
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- CN104905752B CN104905752B CN201510407884.7A CN201510407884A CN104905752B CN 104905752 B CN104905752 B CN 104905752B CN 201510407884 A CN201510407884 A CN 201510407884A CN 104905752 B CN104905752 B CN 104905752B
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Abstract
The present invention is applied to dish-washing machine field, disclose spraying arm of dish washer device and dish-washing machine, wherein, spraying arm of dish washer device includes rotary guide pipe and the spray arm being rotationally connected with rotary guide pipe, spray arm has hollow cavity and several hole for water sprayings, rotary guide pipe has the inlet opening connected with hollow cavity, the guiding cone relative with inlet opening is also convexly equipped with spray arm, guiding cone has the water conservancy diversion conical surface for being used for that washings to be carried out with water conservancy diversion, rotary guide pipe has the drainage wall relative with the water conservancy diversion conical surface, enclose to form an annular split channel between the water conservancy diversion conical surface and drainage wall, annular split channel may be partitioned into several water flow sections vertical with water (flow) direction along water (flow) direction, and the area of each water flow section is all equal.The present invention, pass through the setting of guiding cone so that each water flow section area of annular split channel is all equal, so as to reduce washings into the caused pressure loss in spray arm, improves the water flow efficiency of spray arm, and reduce vortex noise.
Description
Technical field
The invention belongs to dish-washing machine field, more particularly to spraying arm of dish washer device and the dish-washing machine with the spray arm device.
Background technology
Dish-washing machine is washed automatically using the methods of chemistry, physics to tablewares such as dishes, cup, knife and fork, chopsticks
Machine, and part dish-washing machine also has the function of being dried automatically to the tableware after washing.
Specifically, a kind of washing operation principle of conventional dish-washing machine is：Entering action edge suction using washing pump makes washings
With certain pressure via in pipeline to spray arm so that washings from the hole for water spraying of spray arm with certain pressure and speed
Degree ejects the dirt for carrying out washing away on tableware, and then removes the purpose of dirt on tableware；And in order that spray arm is being washed
It can constantly be rotated during washing so as to realize a kind of effect of fan-shaped rotary stereo-spray, typically two are all offered on spray arm
Lateral hole for water spraying, the washings sprayed from the lateral hole for water spraying can give one recoil strength of spray arm, and then spray arm can be promoted to carry out
Rotary motion.
An important execution unit of the spray arm as dish-washing machine flow promoter system, its water flow efficiency directly affect dish-washing machine
Detersive efficiency and energy-saving effect.As shown in figure 4, the water flow mode of existing spraying arm of dish washer is such：By the ＇ of pipeline 1 conveyings
Washings are in vertical inflow spray arm 2 ＇, i.e., are axially vertical along the ＇ of spray arm 2 pivot by the ＇ of pipeline 1 washings conveyed
Flow into the annular region of the ＇ inner surfaces of spray arm 2.This ＇ of spray arm 2 water flow mode has the following disadvantages it in a particular application
Place：
1) washings entered in the ＇ of spray arm 2 are flowed from the mode of vertical reflection and part refraction to water spray hole site,
Because the vertical reflection and refraction of current can make the fluid dynamic energy amount of current have larger decay, therefore so that washings enter spray
The larger pressure loss can be produced during the ＇ of arm 2, so that the washings pressure ratio sprayed out of hole for water spraying is relatively low, sternly
The lifting of the ＇ water flow efficiencies of spray arm 2 is have impact on again.
2) during entering the ＇ of spray arm 2 due to washings, the area of water flow section has larger mutation, so, a side
Face causes washings to produce larger vortex during flowing into the ＇ of spray arm 2, so as to trigger eddy current crack, is unfavorable for washing the dishes
Machine runs the reduction of noise；The mutation of another aspect water flow section can also cause the loss of flow energy, and then further reduce
The washing water pressure sprayed out of hole for water spraying, have impact on the lifting of the ＇ water flow efficiencies of spray arm 2.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided spraying arm of dish washer device and dish-washing machine,
Which solve existing dish-washing machine and the technical problem that spray arm water flow efficiency is low, current noise is big be present.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：Spraying arm of dish washer device, including rotary guide pipe and turn
The dynamic spray arm being connected on the rotary guide pipe, the spray arm have hollow cavity and several connected with the hollow cavity
Hole for water spraying, the rotary guide pipe have the inlet opening that is connected with the hollow cavity, be also convexly equipped with the spray arm with it is described enter
The relative guiding cone in water hole, the guiding cone have the water conservancy diversion conical surface for being used for that washings to be carried out with water conservancy diversion, and the rotation is led
Pipe has the drainage wall relative with the water conservancy diversion conical surface, encloses to form a ring between the water conservancy diversion conical surface and the drainage wall
Shape split channel, the annular split channel may be partitioned into several water flow sections vertical with water (flow) direction along water (flow) direction,
And the area of each water flow section is all equal.
The spray arm has the relative cavity wall relative with the inlet opening, and the guiding cone is from described with respect to cavity wall direction
The inlet opening extends projection.
Preferably, the guiding cone has the cone end extended in the inlet opening, and the water conservancy diversion conical surface is circumferentially
It surround and is connected between the cone end and the relative cavity wall.
Preferably, the water conservancy diversion conical surface surround a pivot overlapped with the water inlet centerline hole by a cone generatrices
Line rotates to be formed.
Preferably, the area for defining a water flow section is M, defines position phase of the drainage wall at the water flow section
Radius to the rotation centerline of the guiding cone is ra, it is relative to define position of the water conservancy diversion conical surface at the water flow section
The radius of the guiding cone rotation centerline is rb, then have M=π L (ra+rb), wherein, L=[(ra-rb)2+H2](1/2), H is
Standoff height of the water flow section on the guiding cone rotation centerline.
Preferably, the drainage wall surround the water inlet centerline hole rotary into described in definition by a conduit bus
On conduit bus arbitrfary point to the distance of its center of curvature be r0, define the close inlet opening of the annular split channel
End is feeder connection, and the end away from the inlet opening for defining the annular split channel is channel outlet, described in definition
The water flow section radius at feeder connection is rc, it is female with the conduit to define the water flow section of the channel exit
Any point is β to the angle between the line of its center of curvature on line, then has ra=(r0+rc)-r0Sinβ。
Preferably, the distance for defining arbitrfary point to its center of curvature in the cone generatrices is R, defines the channel outlet
Any point is α to the angle between the line of its center of curvature in the water flow section and the cone generatrices at place, then has rb
=(r0+rc)-R Sinα。
Preferably, the guiding cone has the cone end extended in the inlet opening, defines the channel exit
The water flow section and the cone end to the angle between the line of the cone generatrices center of curvature be αmax, then have H=
R Cosα-(r0+D)Ctgαmax-r0Cosβ。
Preferably, the relatively described water conservancy diversion conical surface pivot in position of the drainage wall at the first water flow section is defined
The radius of line is ra1, position of the water conservancy diversion conical surface at first water flow section is defined in water conservancy diversion conical surface rotation
The radius of heart line is rb1, define the relatively described water conservancy diversion conical surface pivot in position of the drainage wall at the second water flow section
The radius of line is ra2, position of the water conservancy diversion conical surface at second water flow section is defined in water conservancy diversion conical surface rotation
The radius of heart line is rb2, then have L1(ra1+rb1)=L2(ra2+rb2), wherein,
L1=[(ra1-rb1)2+H1 2](1/2),H1It is first water flow section on the water conservancy diversion conical surface rotation centerline
Standoff height；
L2=[(ra1-rb1)2+H2 2](1/2), H2It is second water flow section on the water conservancy diversion conical surface rotation centerline
Standoff height.
Further, present invention also offers dish-washing machine, it has above-mentioned spraying arm of dish washer device.
Spraying arm of dish washer device and dish-washing machine provided by the invention, by setting up guiding cone in spray arm, and utilize and lead
The washings that the deflection cone of flow cone body faces to enter in spray arm carry out water conservancy diversion and shunting, simultaneously so that the water conservancy diversion conical surface and drainage tube
Each water flow section area that wall encloses the annular split channel to be formed is all equal, so, on the one hand causes washing into spray arm
Hole for water spraying can be flowed to naturally along annular split channel by washing water, avoid the damage that vertical reflection and refraction cause flow energy
Lose, improve the jet power of washings, so as to improve the water flow efficiency of spray arm, and effectively reduce the energy damage of dish-washing machine
Consumption；On the other hand washings are avoided into the suddenly change of water flow section during spray arm so that washings flow into spray arm
During will not produce vortex phenomenon, eliminate the eddy current crack of current in spray arm, and then effectively reduce the operation of dish-washing machine
Noise, and reduce because the mutation of water flow section causes the loss of flow energy, further increase and sprayed out of hole for water spraying
Washing water pressure, dramatically improve the water flow efficiency of spray arm.
Brief description of the drawings
Fig. 1 is the structural representation of spraying arm of dish washer device provided in an embodiment of the present invention；
Fig. 2 is each Size Distribution schematic diagram of a certain water flow section of annular split channel provided in an embodiment of the present invention；
Fig. 3 is two water flow sections of annular split channel provided in an embodiment of the present invention
Each Size Distribution schematic diagram；
Fig. 4 is the structural representation for the spraying arm of dish washer device that prior art provides；
Block arrows in Fig. 1 and Fig. 4 indicate for water (flow) direction.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It should be noted that when element is referred to as on " being fixed on " or " being arranged at " another element, it can be direct
On another element or it may be simultaneously present centering elements.When an element is known as " connection " another element, it
Can be directly connected to another element or may be simultaneously present centering elements.
It should also be noted that, the orientation term such as left and right, upper and lower, top, bottom in following examples, is only relative each other
Concept or using the normal operating condition of product as reference, and should not be regarded as restrictive.
As shown in figure 1, spraying arm of dish washer device provided in an embodiment of the present invention, including rotary guide pipe 1 and it is rotationally connected with
Spray arm 2 on rotary guide pipe 1, spray arm 2 has hollow cavity 201 and several hole for water sprayings connected with hollow cavity 201, and (figure is not
Show), rotary guide pipe 1 has the inlet opening 11 connected with hollow cavity 201, is also convexly equipped with spray arm 2 relative with inlet opening 11
Guiding cone 3, guiding cone 3 have the water conservancy diversion conical surface 31 for being used for that washings to be carried out with water conservancy diversion, and the water conservancy diversion conical surface 31 is specially water conservancy diversion
The convex outer surface for being exposed to hollow cavity 201 of cone 3.Rotary guide pipe 1 has the drainage wall 12 relative with the water conservancy diversion conical surface 31, leads
Enclose to form an annular split channel 4 between flow cone face 31 and drainage wall 12, annular split channel 4 is divisible along water (flow) direction
The water flow section 41 vertical with water (flow) direction into several, and the area of each water flow section 41 is all equal.In specific washing process,
Washings in inlet opening 11 are to be drained to through annular split channel 4 in spray arm 2, due to flowing through washing for annular split channel 4
Wash water each water flow section 41 all level off to it is equal, so as to avoid washings into during spray arm 2 water flow section 41 it is prominent
So change, so, on the one hand cause washings not produce vortex phenomenon during flowing into spray arm 2, eliminate the reclaimed water of spray arm 2
The eddy current crack of stream, and then effectively reduce the operation noise of dish-washing machine；On the other hand dashing forward due to water flow section 41 is reduced
Become the loss for causing flow energy, improve the washing water pressure sprayed out of hole for water spraying, dramatically improve spray arm 2
Water flow efficiency.Simultaneously as vertical reflection and refraction effect will not occur into the washings in annular split channel 4, therefore, lead
The setting of flow cone body 3, the loss that vertical reflection and refraction cause flow energy is effectively prevent, further increases washings
Jet power, dramatically improves the water flow efficiency of spray arm 2, and effectively reduces the energy loss of dish-washing machine.
Specifically, as shown in figure 1, spray arm 2 has a relative cavity wall 202 relative with inlet opening 11, guiding cone 3 is from relative
Cavity wall 202 extends projection towards inlet opening 11, so, beneficial to guiding cone 3 correctly to entering from rotary guide pipe 1 in spray arm 2
Washings carry out water conservancy diversion, shunting, and beneficial to realize make all equal effect of each area of water flow section 41.
Preferably, as shown in figure 1, guiding cone 3 has the cone end 32 extended in inlet opening 11, the edge of the water conservancy diversion conical surface 31
Circumferentially around being connected between cone end 32 and relative cavity wall 202, i.e., guiding cone 3 (is rotated with lateral cross section with guiding cone 3
The vertical section of center line 300) form that gradually increases extends from cone end 32 towards relative cavity wall 202, so, makes beneficial to profit
The area of each water flow section 41 of annular split channel 4 is all equal, effectively prevent washings and flows into water flow section when in spray arm 2
41 mutation.
Preferably, as shown in Figures 1 to 3, the water conservancy diversion conical surface 31 surround one and the center line weight of inlet opening 11 by a cone generatrices 311
The rotation centerline 300 of conjunction is rotated by 360 ° to be formed, so, in concrete application, as long as determining that cone generatrices 311 can ensure ring
The area of each water flow section 41 of shape split channel 4 is all equal.
Preferably, with reference to shown in Fig. 1 and Fig. 2, the area for defining a water flow section 41 is M, defines drainage wall 12 at this
The radius of the rotation centerline 300 of position opposite flow cone 3 at water flow section 41 is ra, the water conservancy diversion conical surface 31 is defined in the water
The radius of the rotation centerline 300 of position opposite flow cone 3 at flow section 41 is rb, then have
M=π L (ra+rb), quoted for the ease of follow-up, it is formula (1) to define the formula；
Wherein, L=[(ra-rb)2+H2](1/2), quoted for the ease of follow-up, it is formula (2) to define the formula；
H is standoff height of the water flow section 41 on the rotation centerline 300 of guiding cone 3.
The area of any water flow section 41 can be calculated using formula (1), so as to beneficial to each annular split channel 4 of checking computations
Whether each area of water flow section 41 is equal.
Preferably, with reference to shown in Fig. 1 and Fig. 2, drainage wall 12 is revolved by a conduit bus 121 around the center line of inlet opening 11
Turn to be formed, define on conduit bus 121 arbitrfary point to the distance of its center of curvature be r0, define the close of annular split channel 4
The end (end at the close cone end 32 of i.e. annular split channel 4) of inlet opening 11 is feeder connection 42, defines annular shunting
The end (end away from cone end 32 of i.e. annular split channel 4) away from inlet opening 11 of passage 4 is channel outlet 43, is led to
Water flow section 41 at road entrance 42 is horizontal plane (vertical with the rotation centerline 300 of guiding cone 3), at channel outlet 43
Water flow section 41 is vertical plane (parallel with the rotation centerline 300 of guiding cone 3).Define the water flow section at feeder connection 42
41 radiuses are rc, define the water flow section 41 at channel outlet 43 and the company of any point on conduit bus 121 to its center of curvature
Angle between line is β, then has
ra=(r0+rc)-r0Sin β, quoted for the ease of follow-up, it is formula (3) to define the formula.
Preferably, as shown in Fig. 2 define cone generatrices 311 on arbitrfary point to the distance of its center of curvature be R, define lead to
Road outlet 43 at water flow section 41 and cone generatrices 311 on any point to the angle between the line of its center of curvature be α, then
Have
rb=(r0+rc)-R Sin α, quoted for the ease of follow-up, it is formula (4) to define the formula.
Preferably, the water flow section 41 at channel outlet 43 and cone end 32 to the center of curvature of cone generatrices 311 are defined
Angle between line is αmax, then have
H=R Cos α-(r0+D)Ctgαmax-r0Cos β, quoted for the ease of follow-up, it is formula (5) to define the formula.
It is introduced below that cone mother is determined using above-mentioned formula (1), formula (2), formula (3), formula (4) and formula (5)
The method of line 311：
As shown in figure 3, define in the rotation of the position opposite flow conical surface 31 of the drainage wall 12 at the first water flow section 411
The radius of heart line 300 is ra1, define in the rotation of the position opposite flow conical surface 31 of the water conservancy diversion conical surface 31 at the first water flow section 411
The radius of heart line 300 is rb1, define in the rotation of the position opposite flow conical surface 31 of the drainage wall 12 at the second water flow section 412
The radius of heart line 300 is ra2, define in the rotation of the position opposite flow conical surface 31 of the water conservancy diversion conical surface 31 at the second water flow section 412
The radius of heart line 300 is rb2, due to the area equation of water flow section 41 corresponding to each point in cone generatrices 311, therefore, by above-mentioned public affairs
Formula (1), can obtain L1(ra1+rb1)=L2(ra2+rb2), quoted for the ease of description, it is formula (6) to define the formula.
Wherein, can be obtained by formula (2), L1=[(ra1-rb1)2+H1 2](1/2), it is formula (7) to define the formula；And L2=
[(ra1-rb1)2+H2 2](1/2), it is formula (8) to define the formula；
H1For standoff height of first water flow section 411 on the rotation centerline 300 of the water conservancy diversion conical surface 31；
H2For standoff height of second water flow section 412 on the rotation centerline 300 of the water conservancy diversion conical surface 31；
And H1And H2It can be substituted into and determined by formula (5)；ra1And ra2It can be substituted into and determined by formula (3)；rb1And rb2Can be by formula
(4) substitute into and determine.
Specifically, first formula (7) and formula (8) are substituted into formula (6), so as to obtain formula：[(ra1-rb1)2+H1 2
](1/2)(ra1+rb1)=[(ra1-rb1)2+H2 2](1/2)(ra2+rb2), it is formula (9) to define the formula；
Then formula (3), formula (4) and formula (5) are substituted into formula (9), so as to obtain formula：{[(r01+rc)-
r01Sinβ1-(r01+rc)+R1Sinα1]2+[R 1Cosα1-(r01+rc)Ctgαmax-r01Cosβ1]2}(1/2)[(r01+rc)-r01Sinβ1
+(r01+rc)-R1Sinα1]={ [(r02+rc)-r02Sinβ2-(r02+rc)+R2Sinα2]2+[R2Cosα2-(r02+rc)Ctgαmax-
r02Cosβ2]2}(1/2)[(r02+rc)-r0Sinβ2+(r02+rc)-R2Sinα2], it is formula (10) to define the formula；
Wherein, β1For the point on conduit bus 121 at the water flow section 411 of water flow section 41 and first at channel outlet 43
Angle between the line of its center of curvature, β2At the water flow section 412 of water flow section 41 and second at channel outlet 43
Point on conduit bus 121 is to the angle between the line of its center of curvature, α1For the water flow section 41 at channel outlet 43 with
Point at first water flow section 411 in cone generatrices 311 is to the angle between the line of its center of curvature, α2For channel outlet 43
Point at the water flow section 412 of water flow section 41 and second at place in cone generatrices 311 is to the folder between the line of its center of curvature
Angle, R1For the point in cone generatrices 311 at the first water flow section 411 to the distance of its center of curvature, R2For the second water flow section
Point at 412 in cone generatrices 311 is to the distance of its center of curvature, r01For on conduit bus 121 at the first water flow section 411
Point arrives the distance of its center of curvature, r02For the point on conduit bus 121 at the second water flow section 412 to its center of curvature away from
From,
Formula can be obtained by simplifying formula (10)：{(R1Sinα1-r01Sinβ1)2+[R 1Cosα1-(r01+rc)Ctgαmax-r01Cos
β1]2}(1/2)[2(r01+rc)-r01Sinβ1-R1Sinα1]={ (R2Sinα2-r02Sinβ2)2+[R2Cosα2-(r02+rc)Ctgαmax-
r02Cosβ2]2}(1/2)[2(r02+rc)-r02Sinβ2-R2Sinα2], it is formula (11) to define the formula.
In formula (11), for the rotary guide pipe 1 of determination, what drainage wall 12 was to determine, i.e. each ginseng of conduit bus 121
Count what is be to determine, i.e. parameter beta1、β2、r01、r02It is known；Due to the water flow section 41 and channel outlet 43 at feeder connection 42
The water flow section 41 at place is the boundary of the annular horizontal cross-section of split channel 4 and vertical section, and the two sections can be led by rotation
The shape determination of pipe 1, therefore, for the rotary guide pipe 1 for determination, parameter rc、αmaxAlso should be known, then formula (11)
In variable parameter just only have R1、α1、R2、α2, and when the first water flow section 411 is located at feeder connection 42 at (at cone end 32)
When, R1、α1And can determine that, each parameter value is substituted into formula (11) and can determine that R2And α2Relation, so, we are by α2
In 0~αmaxBetween value calculated, you can draw corresponding R2, thus calculate repeatedly and can determine that cone generatrices 311.
Center line of the cone generatrices 311 being calculated using formula (11) around inlet opening 11 is rotated by 360 °, you can really
Determine the water conservancy diversion conical surface 31, coordinated using the water conservancy diversion conical surface 31 and rotary guide pipe 1 and may be such that the washings for flowing through annular split channel 4
Each water flow section 41 is all equal, effectively prevents because the mutation of water flow section 41 causes the loss of water flow pressure, dramatically
The water flow efficiency of spray arm 2 is improved, and reduces current noise.
Preferably, spray arm 2 includes the first housing 21 and the second housing 22, and the first housing 21, which covers, is fixed on the second housing 22
The hollow cavity 201 to form above-mentioned spray arm 2 is gone up and encloses, the specific connected mode between the first housing 21 and the second housing 22 can
To weld, riveting, snapping connection.Rotary guide pipe 1 is rotatablely connected the first housing 21, and guiding cone 3 is convexly equipped in the second housing 22
On, hole for water spraying is on the second housing 22.Spray arm 2 is divided to be designed for the first housing 21 and the two parts of the second housing 22 and added
Work, it may be such that the design difficulty of spray arm 2 substantially reduces, so as to beneficial to the production efficiency for improving spray arm 2.
Specifically, spray arm 2 is provided with the mounting hole for the insertion connection of rotary guide pipe 1, and mounting hole, which specifically runs through, is located at first
On housing 21, the rotation centerline 300 of guiding cone 3 overlaps with the center line of mounting hole, so, when rotary guide pipe 1 is installed on
After in mounting hole, overlapped beneficial to the rotation centerline 300 for ensureing guiding cone 3 with the center line of inlet opening 11, so as to beneficial to real
Now make all equal effect of each water flow section 41 of annular split channel 4.
Specifically, spray arm 2 circumferentially surrounds the support arm being arranged on the outside of mounting hole including several, in the present embodiment, branch
The quantity of arm is provided only with two, and two support arms are linearly set；Of course, two support arms also can not linearly be set；Or
The quantity of support arm can also be set to more than three, and the circumferentially spaced outside for being distributed in mounting hole of each support arm, i.e., each support arm
Radially distribute in the outside of mounting hole.
Further, the embodiment of the present invention additionally provides dish-washing machine, and it includes inner bag (not shown), outer outside inner bag
Shell (not shown), the bowl basket (not shown) in inner bag and above-mentioned spraying arm of dish washer device, above-mentioned spraying arm of dish washer dress
It is arranged in inner bag and can be towards bowl basket jet cleaning water.The dish-washing machine that the present embodiment provides, washes the dishes as a result of above-mentioned
Machine spray arm device, therefore, one side dramatically improves effective jet power of current, so as to effectively reduce the wave of energy
Take；The opposing party effectively reduces due to the mutation of the area of water flow section 41 and makes washings caused vortex phenomenon in flowing,
So as to decrease or even eliminate the eddy current crack triggered.
Specifically, upper spray arm device, middle spray arm device and lower spraying arm device, upper spray arm device, middle spray are provided with dish-washing machine
Arm assembly and lower spraying arm device are respectively arranged in the top, middle part and bottom of inner bag, upper spray arm device, middle spray arm device and lower spray
Each hole for water spraying direction on arm assembly is different, such as：The hole for water spraying of upper spray arm device is that directed downwardly, lower spraying arm device hole for water spraying is
Upward, in concrete application, upper spray arm device, middle spray arm device and lower spraying arm device can all use above-mentioned spraying arm of dish washer to fill
Put, of course, can also only have one or two to be washed using above-mentioned in upper spray arm device, middle spray arm device and lower spraying arm device
Bowl machine spray arm device, can be according to optimization designs such as real needs and manufacturing costs during specific design.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. spraying arm of dish washer device, including rotary guide pipe and the spray arm being rotationally connected with the rotary guide pipe, the spray arm tool
There are hollow cavity and several hole for water sprayings connected with the hollow cavity, the rotary guide pipe has to be connected with the hollow cavity
Logical inlet opening, it is characterised in that：The guiding cone relative with the inlet opening, the deflection cone are also convexly equipped with the spray arm
Body has the water conservancy diversion conical surface for being used for that washings to be carried out with water conservancy diversion, and the rotary guide pipe has the drainage relative with the water conservancy diversion conical surface
Tube wall, enclose to form an annular split channel between the water conservancy diversion conical surface and the drainage wall, the annular split channel edge
Water (flow) direction may be partitioned into several water flow sections vertical with water (flow) direction, and the area of each water flow section is all equal；
The water conservancy diversion conical surface is rotated by a cone generatrices around a rotation centerline overlapped with the water inlet centerline hole to be formed,
And the cone generatrices are curve；
The drainage wall by a conduit bus around it is described water inlet centerline hole rotary into, and the conduit bus for song
Line.
2. spraying arm of dish washer device as claimed in claim 1, it is characterised in that：The spray arm has relative with the inlet opening
Relative cavity wall, the guiding cone extends projection from the relative cavity wall towards the inlet opening.
3. spraying arm of dish washer device as claimed in claim 2, it is characterised in that：The guiding cone have extend it is described enter
Cone end in water hole, the water conservancy diversion conical surface, which circumferentially surrounds, to be connected between the cone end and the relative cavity wall.
4. spraying arm of dish washer device as claimed in claim 1, it is characterised in that：The area for defining a water flow section is M, definition
The radius of the rotation centerline of the relatively described guiding cone in position of the drainage wall at the water flow section is ra, definition institute
The radius for stating the relatively described guiding cone rotation centerline in position of the water conservancy diversion conical surface at the water flow section is rb, then have M=π L
(ra+rb), wherein, L=[(ra-rb)2+H2](1/2), H is projection of the water flow section on the guiding cone rotation centerline
Highly.
5. spraying arm of dish washer device as claimed in claim 4, it is characterised in that：The drainage wall is surround by a conduit bus
The water inlet centerline hole rotary into, define on the conduit bus arbitrfary point to the distance of its center of curvature be r0, definition
The annular split channel is feeder connection close to the end of the inlet opening, defines the remote institute of the annular split channel
The end for stating inlet opening is channel outlet, and it is r to define the water flow section radius at the feeder connectionc, define described logical
In the water flow section in road exit and the conduit bus any point to the angle between the line of its center of curvature be β,
Then there is ra=(r0+rc)-r0Sinβ。
6. spraying arm of dish washer device as claimed in claim 5, it is characterised in that：Define arbitrfary point in the cone generatrices and arrive it
The distance of the center of curvature is R, and the water flow section and any point in the cone generatrices for defining the channel exit arrive it
Angle between the line of the center of curvature is α, then has rb=(r0+rc)-R Sinα。
7. spraying arm of dish washer device as claimed in claim 6, it is characterised in that：The guiding cone have extend it is described enter
Cone end in water hole, define the water flow section and the cone end to the cone generatrices curvature of the channel exit
Angle between the line at center is αmax, then have H=R Cos α-(r0+D)Ctgαmax-r0Cosβ。
8. spraying arm of dish washer device as claimed in claim 7, it is characterised in that：The drainage wall is defined to cut in the first current
The radius of the relatively described water conservancy diversion conical surface rotation centerline in position at face is ra1, the water conservancy diversion conical surface is defined in first current
The radius of the relatively described water conservancy diversion conical surface rotation centerline in position at section is rb1, define the drainage wall and cut in the second current
The radius of the relatively described water conservancy diversion conical surface rotation centerline in position at face is ra2, the water conservancy diversion conical surface is defined in second current
The radius of the relatively described water conservancy diversion conical surface rotation centerline in position at section is rb2, then have L1(ra1+rb1)=L2(ra2+rb2), its
In,
L1=[(ra1-rb1)2+H1 2](1/2),H1For projection of first water flow section on the water conservancy diversion conical surface rotation centerline
Highly；
L2=[(ra1-rb1)2+H2 2](1/2), H2For projection of second water flow section on the water conservancy diversion conical surface rotation centerline
Highly.
9. dish-washing machine, it is characterised in that：With the spraying arm of dish washer device as described in any one of claim 1 to 8.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107518846B (en) * | 2016-06-20 | 2019-12-10 | 青岛海尔洗碗机有限公司 | Spraying device of dish washing machine and dish washing machine with spraying device |
| CN108175352B (en) * | 2016-12-08 | 2021-08-27 | 青岛海尔洗碗机有限公司 | Self-rotating sprayer and dish washing machine applying same |
| CN108523803B (en) * | 2018-03-08 | 2024-06-04 | 佛山市云米电器科技有限公司 | Upper spray arm structure of dish washer |
| CN111839405A (en) * | 2019-04-30 | 2020-10-30 | 青岛海尔洗碗机有限公司 | Dish-washing machine sprayer and dish-washing machine |
| CN110762252A (en) * | 2019-11-04 | 2020-02-07 | 温州海瑞陶瓷阀有限公司 | Combined noise reduction valve core for kitchen sink drawing faucet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201333016Y (en) * | 2008-12-22 | 2009-10-28 | 美的集团有限公司 | Water spray assembly of dish washing machine |
| CN201505114U (en) * | 2009-10-15 | 2010-06-16 | 美的集团有限公司 | Spraying arm of dish washing machine |
| CN202069558U (en) * | 2010-12-09 | 2011-12-14 | 佛山市顺德区美的洗涤电器制造有限公司 | Spraying arm of dish washer |
| CN202960423U (en) * | 2012-11-26 | 2013-06-05 | 美的集团股份有限公司 | Spraying arm for dishwasher, spraying arm component and dishwasher |
| CN203122329U (en) * | 2013-01-11 | 2013-08-14 | 美的集团股份有限公司 | One-chip rotary spraying arm of dish-washing machine and dish-washing machine |
| CN204765520U (en) * | 2015-07-13 | 2015-11-18 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish washer spray arm device and dish washer |
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Effective date of registration: 20230627 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 528311 Beijiao Town Industrial Park, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN SHUNDE MIDEA WASHING APPLIANCES MANUFACTURING Co.,Ltd. Patentee before: MIDEA GROUP Co.,Ltd. |
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