CN204765520U - Dish washer spray arm device and dish washer - Google Patents
Dish washer spray arm device and dish washer Download PDFInfo
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- CN204765520U CN204765520U CN201520505708.2U CN201520505708U CN204765520U CN 204765520 U CN204765520 U CN 204765520U CN 201520505708 U CN201520505708 U CN 201520505708U CN 204765520 U CN204765520 U CN 204765520U
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- conservancy diversion
- water flow
- flow section
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Abstract
The utility model is suitable for a dish washer field, dish washer spray arm device and dish washer is disclosed, wherein, the spray arm on rotatory pipe is connected including rotatory pipe and rotation to dish washer spray arm device, spray arm has cavity inner chamber and a plurality of hole for water spraying, rotatory pipe has the inlet opening with cavity inner chamber intercommunication, still protrudingly in the spray arm be equipped with the water conservancy diversion cone relative with the inlet opening, the water conservancy diversion cone has the water conservancy diversion conical surface that is used for carrying on the water conservancy diversion to washing water, rotatory pipe has the drainage pipe wall relative with the water conservancy diversion conical surface, it forms an annular reposition of redundant personnel passageway to enclose between the water conservancy diversion conical surface and the drainage pipe wall to close, divisible one -tenth a plurality of of water flow direction and water flow direction vertically rivers cross -section are followed to annular reposition of redundant personnel passageway, and the area in each rivers cross -section all equals. The utility model discloses, setting through the water conservancy diversion cone for each rivers cross sectional area of annular reposition of redundant personnel passageway equals, thereby the loss of pressure of production when having reduced washing water and getting into in the spray arm has improved spray arm's rivers efficiency, and has reduced vortex noise.
Description
Technical field
The utility model belongs to dish-washing machine field, particularly relates to spraying arm of dish washer device and has the dish-washing machine of this spray arm device.
Background technology
Dish-washing machine is the machine utilizing the methods such as chemistry, physics the tablewares such as dishes, cup, knife and fork, chopsticks to be carried out to automatic washing, and part dish-washing machine also has the function that the tableware after to washing carries out auto-drying.
Particularly, a kind of washing operation principle of conventional dish-washing machine is: utilize washing pump carry out power suction make washings with certain pressure via Cemented filling in spray arm, thus make washings from the hole for water spraying of spray arm, eject the dirt carrying out washing away on tableware with certain pressure and speed, and then reach the object removing dirt on tableware; And in order to make spray arm can constantly rotate in washing process thus realize a kind of effect of fan-shaped rotary stereo-spray, spray arm generally all offers two side direction hole for water sprayings, can spray arm recoil strength be given from the washings of this side direction hole for water spraying ejection, and then spray arm can be promoted be rotated.
Spray arm is as an important execution unit of dish-washing machine flow promoter system, and its water flow efficiency directly affects detersive efficiency and the energy-saving effect of dish-washing machine.As shown in Figure 4, the water flow mode of existing spraying arm of dish washer is such: the washings carried by pipeline 1 ＇ vertically flow in spray arm 2 ＇, and the washings namely carried by pipeline 1 ＇ enter the annular region of spray arm 2 ＇ inner surface along the axial vertical current of pivot of spray arm 2 ＇.The water flow mode of this spray arm 2 ＇ has the following disadvantages in a particular application:
1) washings entered in spray arm 2 ＇ are flowed to hole for water spraying position by the mode of vertical reflection and part refraction, because the vertical reflection of current and refraction can make the fluid dynamic energy of current have larger decay, therefore, washings are entered in the process of spray arm 2 ＇ and can produce the larger pressure loss, thus make the washings pressure ratio that sprays in hole for water spraying lower, have a strong impact on the lifting of spray arm 2 ＇ water flow efficiency.
2) because washings enter in the process of spray arm 2 ＇, the area of water flow section has larger sudden change, like this, makes washings flow in the process of spray arm 2 ＇ on the one hand and can produce larger eddy current, thus can eddy current crack be caused, be unfavorable for that dish-washing machine runs the reduction of noise; The sudden change of water flow section also can cause the loss of flow energy on the other hand, and then reduce further the washings pressure sprayed in hole for water spraying, have impact on the lifting of spray arm 2 ＇ water flow efficiency.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides spraying arm of dish washer device and dish-washing machine, which solves existing dish-washing machine and there is the technical problem that spray arm water flow efficiency is low, current noise is large.
For achieving the above object, the technical solution adopted in the utility model is: spraying arm of dish washer device, comprise rotary guide pipe and be rotationally connected with the spray arm on described rotary guide pipe, described spray arm has the hole for water spraying that hollow cavity is communicated with described hollow cavity with several, described rotary guide pipe has the inlet opening be communicated with described hollow cavity, the guiding cone relative with described inlet opening is also convexly equipped with in described spray arm, described guiding cone has the water conservancy diversion conical surface for carrying out water conservancy diversion to washings, described rotary guide pipe has the drainage wall relative with the described water conservancy diversion conical surface, the annular split channel of formation one is enclosed between the described water conservancy diversion conical surface and described drainage wall, described annular split channel may be partitioned into several water flow section vertical with water (flow) direction along water (flow) direction, and the area of each described water flow section is all equal.
Described spray arm has the relative chamber wall relative with described inlet opening, and described guiding cone extends projection from described relative chamber wall towards described inlet opening.
Preferably, it is most advanced and sophisticated that described guiding cone has the cone extended in described inlet opening, and the described water conservancy diversion conical surface is circumferentially most advanced and sophisticated with between the wall of described relative chamber around being connected to described cone.
Preferably, the described water conservancy diversion conical surface to be rotated around the rotation centerline that overlaps with described inlet opening center line by a cone generatrices and is formed.
Preferably, the area defining a water flow section is M, and defining described drainage wall at the radius of the rotation centerline of the relatively described guiding cone in the position at this water flow section place is r
a, defining the described water conservancy diversion conical surface at the radius of the relatively described guiding cone rotation centerline in the position at this water flow section place is r
b, then M=π L (r is had
a+ r
b), wherein, L=[(r
a-r
b)
2+ H
2]
(1/2), H is the standoff height of this water flow section on described guiding cone rotation centerline.
Preferably, described drainage wall to be rotated around described inlet opening center line by a conduit bus and is formed, and defining arbitrfary point on described conduit bus to the distance of its center of curvature is r
0, the end near described inlet opening defining described annular split channel is feeder connection, and the end away from described inlet opening defining described annular split channel is channel outlet, and the described water flow section radius defining described feeder connection place is r
c, define any point on the described water flow section of described channel exit and described conduit bus to its center of curvature line between angle be β, then have r
a=(r
0+ r
c)-r
0sin β.
Preferably, defining arbitrfary point in described cone generatrices to the distance of its center of curvature is R, define any point in the described water flow section of described channel exit and described cone generatrices to its center of curvature line between angle be α, then have r
b=(r
0+ r
c)-RSin α.
Preferably, described guiding cone has that to extend cone in described inlet opening most advanced and sophisticated, and the angle defined between the described water flow section of described channel exit and the most advanced and sophisticated line to the described cone generatrices center of curvature of described cone is α
max, then H=RCos α-(r is had
0+ D) Ctg α
max-r
0cos β.
Preferably, defining described drainage wall at the radius of the position relatively described water conservancy diversion conical surface rotation centerline at the first water flow section place is r
a1, defining the described water conservancy diversion conical surface at the radius of the position relatively described water conservancy diversion conical surface rotation centerline at described first water flow section place is r
b1, defining described drainage wall at the radius of the position relatively described water conservancy diversion conical surface rotation centerline at the second water flow section place is r
a2, defining the described water conservancy diversion conical surface at the radius of the position relatively described water conservancy diversion conical surface rotation centerline at described second water flow section place is r
b2, then L is had
1(r
a1+ r
b1)=L
2(r
a2+ r
b2), wherein,
L
1=[(r
a1-r
b1)
2+ H
1 2]
(1/2), H
1for the standoff height of described first water flow section on described water conservancy diversion conical surface rotation centerline;
L
2=[(r
a1-r
b1)
2+ H
2 2]
(1/2), H
2for the standoff height of described second water flow section on described water conservancy diversion conical surface rotation centerline.
Further, the utility model additionally provides dish-washing machine, and it has above-mentioned spraying arm of dish washer device.
The spraying arm of dish washer device that the utility model provides and dish-washing machine, by setting up guiding cone in spray arm, and utilize the washings entered in spray arm faced by the deflection cone of guiding cone to carry out water conservancy diversion and shunting, simultaneously, the water conservancy diversion conical surface and drainage wall is made to enclose each water flow section area of the annular split channel of formation all equal, like this, make the washings entered in spray arm naturally can flow to hole for water spraying along annular split channel on the one hand, avoid vertical reflection and reflect the loss causing flow energy, improve the jet power of washings, thus improve the water flow efficiency of spray arm, and effectively reduce the energy loss of dish-washing machine, avoid the unexpected change that washings enter water flow section in spray arm process on the other hand, washings are flowed in the process of spray arm and can not produce vortex phenomenon, eliminate the eddy current crack of current in spray arm, and then effectively reduce the operation noise of dish-washing machine, and the sudden change decreased due to water flow section causes the loss of flow energy, further increase the washings pressure sprayed in hole for water spraying, improve the water flow efficiency of spray arm dramatically.
Accompanying drawing explanation
Fig. 1 is the structural representation of the spraying arm of dish washer device that the utility model embodiment provides;
Fig. 2 is each Size Distribution schematic diagram of a certain water flow section of the annular split channel that the utility model embodiment provides;
Fig. 3 is each Size Distribution schematic diagram of two water flow section of the annular split channel that the utility model embodiment that the utility model embodiment provides provides;
Fig. 4 is the structural representation of the spraying arm of dish washer device that prior art provides;
Block arrows in Fig. 1 and Fig. 4 is that water (flow) direction indicates.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, when element is called as on " being fixed on " or " being arranged at " another element, it can directly on another element or may there is centering elements simultaneously.When an element is known as " connection " another element, it can be directly connect another element or may there is centering elements simultaneously.
Also it should be noted that, the orientation term such as left and right, upper and lower, the top in following examples, end, is only relative concept or be reference with the normal operating condition of product each other, and should not be regarded as have restrictive.
As shown in Figure 1, the spraying arm of dish washer device that the utility model embodiment provides, the spray arm 2 comprising rotary guide pipe 1 and be rotationally connected with on rotary guide pipe 1, spray arm 2 has the hole for water spraying (not shown) that hollow cavity 201 is communicated with hollow cavity 201 with several, rotary guide pipe 1 has the inlet opening 11 be communicated with hollow cavity 201, the guiding cone 3 relative with inlet opening 11 is also convexly equipped with in spray arm 2, guiding cone 3 has the water conservancy diversion conical surface 31 for carrying out water conservancy diversion to washings, and the water conservancy diversion conical surface 31 is specially the convex outer surface being exposed to hollow cavity 201 of guiding cone 3.Rotary guide pipe 1 has the drainage wall 12 relative with the water conservancy diversion conical surface 31, the annular split channel 4 of formation one is enclosed between the water conservancy diversion conical surface 31 and drainage wall 12, annular split channel 4 may be partitioned into several water flow section vertical with water (flow) direction 41 along water (flow) direction, and the area of each water flow section 41 is all equal.In concrete washing process, washings in inlet opening 11 are drained in spray arm 2 through annular split channel 4, because each water flow section 41 of the washings flowing through annular split channel 4 all levels off to equal, thus avoid the unexpected change that washings enter water flow section 41 in spray arm 2 process, like this, make washings flow in the process of spray arm 2 on the one hand and can not produce vortex phenomenon, eliminate the eddy current crack of current in spray arm 2, and then effectively reduce the operation noise of dish-washing machine; The sudden change decreased on the other hand due to water flow section 41 causes the loss of flow energy, improves the washings pressure sprayed in hole for water spraying, improves the water flow efficiency of spray arm 2 dramatically.Simultaneously, because vertical reflection and refraction effect can not be there is in the washings entered in annular split channel 4, therefore, the setting of guiding cone 3, effectively prevent vertical reflection and reflect the loss causing flow energy, further increase the jet power of washings, improve the water flow efficiency of spray arm 2 dramatically, and effectively reduce the energy loss of dish-washing machine.
Particularly, as shown in Figure 1, spray arm 2 has the relative chamber wall 202 relative with inlet opening 11, guiding cone 3 extends projection from relative chamber wall 202 towards inlet opening 11, like this, be beneficial to guiding cone 3 correctly to the washings entered in spray arm 2 carry out water conservancy diversion, shunting from rotary guide pipe 1, and be beneficial to realize make the effect that each water flow section 41 area is all equal.
Preferably, as shown in Figure 1, guiding cone 3 has the cone tip 32 extended in inlet opening 11, the water conservancy diversion conical surface 31 is circumferentially around being connected to cone most advanced and sophisticated 32 with between relative chamber wall 202, namely the form that guiding cone 3 increases gradually with lateral cross section (with the cross section that guiding cone 3 rotation centerline 300 is vertical) extends from boring most advanced and sophisticated 32 towards relative chamber wall 202, like this, being beneficial to profit makes the area of each water flow section 41 of annular split channel 4 all equal, effectively prevent the sudden change of water flow section 41 when washings flow in spray arm 2.
Preferably, as shown in Figures 1 to 3, the water conservancy diversion conical surface 31 is formed around rotation centerline 300 rotating 360 degrees that overlaps with inlet opening 11 center line by a cone generatrices 311, like this, in embody rule, as long as determine that cone generatrices 311 can ensure that each water flow section 41 area of annular split channel 4 is all equal.
Preferably, shown in composition graphs 1 and Fig. 2, the area defining a water flow section 41 is M, and definition drainage wall 12 is r at the radius of the rotation centerline 300 of the position opposite flow cone 3 at this water flow section 41 place
a, the definition water conservancy diversion conical surface 31 is r at the radius of position opposite flow cone 3 rotation centerline 300 at this water flow section 41 place
b, then have
M=π L (r
a+ r
b), quote for the ease of follow-up, defining this formula is formula (1);
Wherein, L=[(r
a-r
b)
2+ H
2]
(1/2), quote for the ease of follow-up, defining this formula is formula (2);
H is the standoff height of this water flow section 41 on guiding cone 3 rotation centerline 300.
Adopt formula (1) that the area of arbitrary water flow section 41 can be calculated, thus whether be beneficial to each water flow section 41 area checking each annular split channel 4 equal.
Preferably, shown in composition graphs 1 and Fig. 2, drainage wall 12 is formed around the rotation of inlet opening 11 center line by a conduit bus 121, and on definition conduit bus 121, arbitrfary point is r to the distance of its center of curvature
0the end near inlet opening 11 (i.e. the end near cone most advanced and sophisticated 32 of annular split channel 4) defining annular split channel 4 is feeder connection 42, the end away from inlet opening 11 (i.e. the end away from cone most advanced and sophisticated 32 of annular split channel 4) defining annular split channel 4 is channel outlet 43, the water flow section 41 at feeder connection 42 place is horizontal plane (vertical with the rotation centerline 300 of guiding cone 3), and the water flow section 41 at channel outlet 43 place is vertical plane (parallel with the rotation centerline 300 of guiding cone 3).Water flow section 41 radius at define channel entrance 42 place is r
c, define channel export any point on the water flow section 41 at 43 places and conduit bus 121 to its center of curvature line between angle be β, then have
R
a=(r
0+ r
c)-r
0sin β, quotes for the ease of follow-up, and defining this formula is formula (3).
Preferably, as shown in Figure 2, in definition cone generatrices 311, arbitrfary point is R to the distance of its center of curvature, define channel export any point in the water flow section 41 at 43 places and cone generatrices 311 to its center of curvature line between angle be α, then have
R
b=(r
0+ r
c)-RSin α, quote for the ease of follow-up, defining this formula is formula (4).
Preferably, define channel export the water flow section 41 at 43 places and cone most advanced and sophisticated 32 to cone generatrices 311 center of curvature line between angle be α
max, then have
H=RCos α-(r
0+ D) Ctg α
max-r
0cos β, quotes for the ease of follow-up, and defining this formula is formula (5).
Below introduce the method adopting above-mentioned formula (1), formula (2), formula (3), formula (4) and formula (5) to determine cone generatrices 311:
As shown in Figure 3, defining drainage wall 12 is r at the radius of the position opposite flow conical surface 31 rotation centerline 300 at the first water flow section 411 place
a1, the definition water conservancy diversion conical surface 31 is r at the radius of the position opposite flow conical surface 31 rotation centerline 300 at the first water flow section 411 place
b1, definition drainage wall 12 is r at the radius of the position opposite flow conical surface 31 rotation centerline 300 at the second water flow section 412 place
a2, the definition water conservancy diversion conical surface 31 is r at the radius of the position opposite flow conical surface 31 rotation centerline 300 at the second water flow section 412 place
b2, due to the area equation of water flow section 41 corresponding to each point in cone generatrices 311, therefore, by above-mentioned formula (1), can L be obtained
1(r
a1+ r
b1)=L
2(r
a2+ r
b2), quote for convenience of description, defining this formula is formula (6).
Wherein, can be obtained by formula (2), L
1=[(r
a1-r
b1)
2+ H
1 2]
(1/2), defining this formula is formula (7); And L
2=[(r
a1-r
b1)
2+ H
2 2]
(1/2), defining this formula is formula (8);
H
1be the standoff height of the first water flow section 411 on the water conservancy diversion conical surface 31 rotation centerline 300;
H
2be the standoff height of the second water flow section 412 on the water conservancy diversion conical surface 31 rotation centerline 300;
And H
1and H
2can be substituted into by formula (5) and determine; r
a1and r
a2can be substituted into by formula (3) and determine; r
b1and r
b2can be substituted into by formula (4) and determine.
Particularly, first formula (7) and formula (8) are substituted in formula (6), thus obtain formula: [(r
a1-r
b1)
2+ H
1 2]
(1/2)(r
a1+ r
b1)=[(r
a1-r
b1)
2+ H
2 2]
(1/2)(r
a2+ r
b2), defining this formula is formula (9);
Then formula (3), formula (4) and formula (5) are substituted in formula (9), thus obtain formula: { [(r
01+ r
c)-r
01sin β
1-(r
01+ r
c)+R
1sin α
1]
2+ [R
1cos α
1-(r
01+ r
c) Ctg α
max-r
01cos β
1]
2}
(1/2)[(r
01+ r
c)-r
01sin β
1+ (r
01+ r
c)-R
1sin α
1]={ [(r
02+ r
c)-r
02sin β
2-(r
02+ r
c)+R
2sin α
2]
2+ [R
2cos α
2-(r
02+ r
c) Ctg α
max-r
02cos β
2]
2}
(1/2)[(r
02+ r
c)-r
0sin β
2+ (r
02+ r
c)-R
2sin α
2], defining this formula is formula (10);
Wherein, β
1for the point in the water flow section 41 at channel outlet 43 place and the first water flow section 411 place conduit bus 121 to its center of curvature line between angle, β
2for the point in the water flow section 41 at channel outlet 43 place and the second water flow section 412 place conduit bus 121 to its center of curvature line between angle, α
1for the point in the water flow section 41 at channel outlet 43 place and the first water flow section 411 place cone generatrices 311 to its center of curvature line between angle, α
2for the point in the water flow section 41 at channel outlet 43 place and the second water flow section 412 place cone generatrices 311 to its center of curvature line between angle, R
1be the distance of the point in the first water flow section 411 place cone generatrices 311 to its center of curvature, R
2be the distance of the point in the second water flow section 412 place cone generatrices 311 to its center of curvature, r
01be the distance of the point on the first water flow section 411 place conduit bus 121 to its center of curvature, r
02be the distance of the point on the second water flow section 412 place conduit bus 121 to its center of curvature,
Formula of reduction (10) can obtain formula: { (R
1sin α
1-r
01sin β
1)
2+ [R
1cos α
1-(r
01+ r
c) Ctg α
max-r
01cos β
1]
2}
(1/2)[2 (r
01+ r
c)-r
01sin β
1-R
1sin α
1]={ (R
2sin α
2-r
02sin β
2)
2+ [R
2cos α
2-(r
02+ r
c) Ctg α
max-r
02cos β
2]
2}
(1/2)[2 (r
02+ r
c)-r
02sin β
2-R
2sin α
2], defining this formula is formula (11).
In formula (11), for the rotary guide pipe 1 determined, drainage wall 12 is determined, namely each parameter of conduit bus 121 is determined, i.e. parameter beta
1, β
2, r
01, r
02known; Due to the boundary that the water flow section 41 at feeder connection 42 place and the water flow section 41 at channel outlet 43 place are annular split channel 4 horizontal cross-section and vertical section, these two cross sections can be determined by the shape of rotary guide pipe 1, therefore, for for the rotary guide pipe 1, parameter r determined
c, α
maxalso should be known, the variable parameter so in formula (11) just only has R
1, α
1, R
2, α
2, and when the first water flow section 411 is positioned at feeder connection 42 place (boring most advanced and sophisticated 32 places), R
1, α
1also can determine, each parameter value is substituted into formula (11) can determine R
2and α
2relation, like this, we are by α
2at 0 ~ α
maxbetween value calculate, corresponding R can be drawn
2, repeatedly calculate thus and can determine cone generatrices 311.
The cone generatrices 311 adopting formula (11) to calculate is around the center line rotating 360 degrees of inlet opening 11, the water conservancy diversion conical surface 31 can be determined, adopting this water conservancy diversion conical surface 31 and rotary guide pipe 1 to coordinate can make each water flow section 41 of the washings flowing through annular split channel 4 all equal, effectively prevent the sudden change due to water flow section 41 from causing the loss of water flow pressure, improve the water flow efficiency of spray arm 2 dramatically, and reduce current noise.
Preferably, spray arm 2 comprises the first housing 21 and the second housing 22, first housing 21 cover be fixed on the second housing 22 and enclose hollow cavity 201, first housing 21 forming above-mentioned spray arm 2 can be with the concrete connected mode between the second housing 22 weld, rivet, buckle is connected.Rotary guide pipe 1 is rotationally connected the first housing 21, and guiding cone 3 is convexly equipped on the second housing 22, and hole for water spraying is located on the second housing 22.Be divided into by spray arm 2 first housing 21 and second housing 22 two parts to carry out design processing, the design difficulty of spray arm 2 can be made greatly to reduce, thus be beneficial to the production efficiency improving spray arm 2.
Particularly, spray arm 2 is provided with and inserts for rotary guide pipe 1 installing hole connected, installing hole specifically runs through to be located on the first housing 21, the rotation centerline 300 of guiding cone 3 overlaps with the center line of installing hole, like this, when rotary guide pipe 1 is installed on after in installing hole, be beneficial to and ensure that the rotation centerline 300 of guiding cone 3 overlaps with the center line of inlet opening 11, thus be beneficial to realization and make the effect that each water flow section 41 of annular split channel 4 is all equal.
Particularly, spray arm 2 comprises several circumferentially around the support arm be arranged at outside installing hole, and in the present embodiment, the quantity of support arm is only provided with two, and the linearly setting of two support arms; Of course, two support arms also can not linearly setting; Or the quantity of support arm also can be set to more than three, and each support arm is along the circumferential direction spaced apart in the outside of installing hole, and namely each support arm radially distributes in the outside of installing hole.
Further, the utility model embodiment still provides dish-washing machine, it comprises inner bag (not shown), the shell (not shown) be located at outside inner bag, be located at bowl basket (not shown) in inner bag and above-mentioned spraying arm of dish washer device, and above-mentioned spraying arm of dish washer device to be located in inner bag and can towards bowl basket jet cleaning water.The dish-washing machine that the present embodiment provides, owing to have employed above-mentioned spraying arm of dish washer device, therefore, improve effective jet power of current on the one hand dramatically, thus effectively reduce the waste of energy; The opposing party effectively reduces vortex phenomenon washings being produced in flowing due to the sudden change of water flow section 41 area, thus reduces the eddy current crack even eliminating initiation.
Particularly, spray arm device is provided with in dish-washing machine, middle spray arm device and lower spraying arm device, upper spray arm device, middle spray arm device and lower spraying arm device are installed on the top of inner bag respectively, middle part and bottom, upper spray arm device, each hole for water spraying on middle spray arm device and lower spraying arm device is towards difference, as: the hole for water spraying of upper spray arm device is down, the hole for water spraying of lower spraying arm device is upward, in embody rule, upper spray arm device, middle spray arm device and lower spraying arm device all can adopt above-mentioned spraying arm of dish washer device, of course, upper spray arm device, also one or two can be only had to adopt above-mentioned spraying arm of dish washer device in middle spray arm device and lower spraying arm device, can according to the optimal design such as real needs and manufacturing cost during specific design.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. spraying arm of dish washer device, comprise rotary guide pipe and be rotationally connected with the spray arm on described rotary guide pipe, described spray arm has the hole for water spraying that hollow cavity is communicated with described hollow cavity with several, described rotary guide pipe has the inlet opening be communicated with described hollow cavity, it is characterized in that: in described spray arm, be also convexly equipped with the guiding cone relative with described inlet opening, described guiding cone has the water conservancy diversion conical surface for carrying out water conservancy diversion to washings, described rotary guide pipe has the drainage wall relative with the described water conservancy diversion conical surface, the annular split channel of formation one is enclosed between the described water conservancy diversion conical surface and described drainage wall, described annular split channel may be partitioned into several water flow section vertical with water (flow) direction along water (flow) direction, and the area of each described water flow section is all equal.
2. spraying arm of dish washer device as claimed in claim 1, is characterized in that: described spray arm has the relative chamber wall relative with described inlet opening, and described guiding cone extends projection from described relative chamber wall towards described inlet opening.
3. spraying arm of dish washer device as claimed in claim 2, is characterized in that: it is most advanced and sophisticated that described guiding cone has the cone extended in described inlet opening, and the described water conservancy diversion conical surface is circumferentially most advanced and sophisticated with between the wall of described relative chamber around being connected to described cone.
4. the spraying arm of dish washer device as described in any one of claims 1 to 3, is characterized in that: the described water conservancy diversion conical surface to be rotated around the rotation centerline that overlaps with described inlet opening center line by a cone generatrices and formed.
5. spraying arm of dish washer device as claimed in claim 4, it is characterized in that: the area defining a water flow section is M, defining described drainage wall at the radius of the rotation centerline of the relatively described guiding cone in the position at this water flow section place is r
a, defining the described water conservancy diversion conical surface at the radius of the relatively described guiding cone rotation centerline in the position at this water flow section place is r
b, then M=π L (r is had
a+ r
b), wherein, L=[(r
a-r
b)
2+ H
2]
(1/2), H is the standoff height of this water flow section on described guiding cone rotation centerline.
6. spraying arm of dish washer device as claimed in claim 5, is characterized in that: described drainage wall to be rotated around described inlet opening center line by a conduit bus and formed, and defining arbitrfary point on described conduit bus to the distance of its center of curvature is r
0, the end near described inlet opening defining described annular split channel is feeder connection, and the end away from described inlet opening defining described annular split channel is channel outlet, and the described water flow section radius defining described feeder connection place is r
c, define any point on the described water flow section of described channel exit and described conduit bus to its center of curvature line between angle be β, then have r
a=(r
0+ r
c)-r
0sin β.
7. spraying arm of dish washer device as claimed in claim 6, it is characterized in that: defining arbitrfary point in described cone generatrices to the distance of its center of curvature is R, define any point in the described water flow section of described channel exit and described cone generatrices to its center of curvature line between angle be α, then have r
b=(r
0+ r
c)-RSin α.
8. spraying arm of dish washer device as claimed in claim 7, it is characterized in that: described guiding cone has that to extend cone in described inlet opening most advanced and sophisticated, the angle defined between the described water flow section of described channel exit and the most advanced and sophisticated line to the described cone generatrices center of curvature of described cone is α
max, then H=RCos α-(r is had
0+ D) Ctg α
max-r
0cos β.
9. spraying arm of dish washer device as claimed in claim 8, is characterized in that: defining described drainage wall at the radius of the position relatively described water conservancy diversion conical surface rotation centerline at the first water flow section place is r
a1, defining the described water conservancy diversion conical surface at the radius of the position relatively described water conservancy diversion conical surface rotation centerline at described first water flow section place is r
b1, defining described drainage wall at the radius of the position relatively described water conservancy diversion conical surface rotation centerline at the second water flow section place is r
a2, defining the described water conservancy diversion conical surface at the radius of the position relatively described water conservancy diversion conical surface rotation centerline at described second water flow section place is r
b2, then L is had
1(r
a1+ r
b1)=L
2(r
a2+ r
b2), wherein,
L
1=[(r
a1-r
b1)
2+ H
1 2]
(1/2), H
1for the standoff height of described first water flow section on described water conservancy diversion conical surface rotation centerline;
L
2=[(r
a1-r
b1)
2+ H
2 2]
(1/2), H
2for the standoff height of described second water flow section on described water conservancy diversion conical surface rotation centerline.
10. dish-washing machine, is characterized in that: have the spraying arm of dish washer device as described in any one of claim 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520505708.2U CN204765520U (en) | 2015-07-13 | 2015-07-13 | Dish washer spray arm device and dish washer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520505708.2U CN204765520U (en) | 2015-07-13 | 2015-07-13 | Dish washer spray arm device and dish washer |
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|---|---|
| CN204765520U true CN204765520U (en) | 2015-11-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104905752A (en) * | 2015-07-13 | 2015-09-16 | 佛山市顺德区美的洗涤电器制造有限公司 | Gushing arm device of dish washing machine and dish washing machine |
| CN106821249A (en) * | 2017-03-13 | 2017-06-13 | 浙江森歌电器有限公司 | A kind of spray thrower of dish-washing machine |
| CN110693425A (en) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | Spraying device of dish washing machine |
-
2015
- 2015-07-13 CN CN201520505708.2U patent/CN204765520U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104905752A (en) * | 2015-07-13 | 2015-09-16 | 佛山市顺德区美的洗涤电器制造有限公司 | Gushing arm device of dish washing machine and dish washing machine |
| CN106821249A (en) * | 2017-03-13 | 2017-06-13 | 浙江森歌电器有限公司 | A kind of spray thrower of dish-washing machine |
| CN106821249B (en) * | 2017-03-13 | 2023-09-05 | 浙江森歌智能厨电股份有限公司 | Sprayer of dish washer |
| CN110693425A (en) * | 2018-07-09 | 2020-01-17 | 青岛海尔洗碗机有限公司 | Spraying device of dish washing machine |
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Effective date of registration: 20230625 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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