CN203670268U - Impeller of open type water pump - Google Patents

Impeller of open type water pump Download PDF

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Publication number
CN203670268U
CN203670268U CN201320890047.0U CN201320890047U CN203670268U CN 203670268 U CN203670268 U CN 203670268U CN 201320890047 U CN201320890047 U CN 201320890047U CN 203670268 U CN203670268 U CN 203670268U
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China
Prior art keywords
impeller
axle
hypomere
water
water pump
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Expired - Lifetime
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CN201320890047.0U
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Chinese (zh)
Inventor
练杨忠
徐慧
朱灯光
郑峰
李帅
茅忠群
诸永定
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Priority to CN201320890047.0U priority Critical patent/CN203670268U/en
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Abstract

The utility model discloses an impeller of an open type water pump. The impeller comprises a shaft located at the center and a plurality of blades evenly distributed on the circumference of the shaft in the circumferential direction and extending in the axial direction. Each blade is divided into an upper section and a lower section in the axial direction, wherein the upper section and the lower section are connected with each other. The impeller is characterized in that at least the bottom portions of the lower sections of the blades are gradually and smoothly bent on the circumference of the shaft in the rotating direction of the impeller, and the ratio of the height of the lower sections of the blades to the height of the upper sections of the blades ranges from 1 to 5. The appropriate height ratio is set for the upper sections of the blades and the lower sections of the blades, and therefore the impeller can draw water at the low water level, the phenomenon that water drawing is influenced when foams formed by cleaning solutions or food residues on the water surface are drawn into the impeller does not easily occur, and enough water can be drawn from the water inlet; the radial size of the upper section of each blade is larger than the radial size of the lower section of the blade, and therefore a runner can be gradually widened when the water flow rises, and the effect of reducing the flowing velocity is achieved.

Description

A kind of impeller of open water pump
Technical field
The present invention relates to a kind of water pump, especially a kind of impeller of open water pump.
Background technique
Water pump is before work, water pump and intake pipe must be filled water, rely on afterwards the impeller of High Rotation Speed, thereby make liquid under the effect of inertial centrifugal force, obtain energy and can improve pressure in it, when impeller fast rotational, blade impels water to rotate very soon, along with the effect of centrifugal force flies out from impeller, after water in water pump is dished out, the core of impeller forms vacuum area, the water at water source enters in intake pipe under the effect of atmospheric pressure (or hydraulic pressure) afterwards, and circulation endlessly, just can realize continuous pumpage like this.Because that water pump has is simple in structure, processing ease, flow are easy to regulate and be applicable to the advantage such as conveying of various special nature materials, be widely used in every field, to each industrial site, little to various household electric appliance, as washing machine, dishwasher, air-conditioning etc. greatly.
Traditional water pump, a kind of draining pump as disclosed in Chinese Patent Application No. 95107436.9, is to have suction port in the lower axial end of impeller, and in upper side, discharge opening is set, in the pump chamber of impeller in sealing.Above-mentioned impeller all in sealing space in, only in this way just can make impeller core form vacuum area, the water at water source just can enter impeller under the effect of atmospheric pressure (or hydraulic pressure) afterwards.And due to the axle of suction port and impeller in the same way, discharge opening is vertical with the axle of impeller, and impeller when rotated, must have and the axle of impeller speed in the same way through the water of impeller, therefore, can go out from the discharge opening vertical with the axle of impeller smoothly in order to make water, impeller also must be in the pump chamber of sealing, particularly the upper part of pump chamber must be fixing seal, otherwise water can be from the top of pump chamber, the parallel direction of axle that is impeller upwards sprays, or may make the parts of top be backed down by water.
Above-mentioned this traditional water pump, impeller must be in the chamber of sealing, not only complex structure, and processing request is also higher, conventionally chamber must seal, otherwise above chamber, all can occur leaking with the direction of the parallel to an axis of impeller, unless outlet is arranged to and the parallel to an axis of impeller.
For this reason, a kind of open water pump is also disclosed, as the publication number disclosed a kind of dishwasher of European patent that is EP0807396A2, comprise the washing chamber for holding plate, be supported on the spray arm of bottom, washing chamber, pump the pump of wash water to spray arm pressurization, pump comprises impeller, the internal surface of spray arm defines the housing for impeller, allow the nozzle of wash water from housing to spray arm to transmit, impeller is included in the prone blade of lower edge, the bottom of blade has axial--flow blading part, after the non-loaded lower startup of drive motor, axial--flow blading part is lifted fluid, thereby pump is normally worked.But this impeller, the hypomere of its bending blade is shorter, need to be at higher water level when blade rotary draws water, the water route of water outlet is shorter, easily will again be involved in impeller at the foam of the formation such as water for cleaning surface washing liquid, swill, impact draws water normally, and the water yield drawing water is less, flow velocity is lower, thereby can impact the spray work normally of rotation spray arm.
Summary of the invention
Technical problem to be solved by this invention is the problem existing for above-mentioned prior art, and the impeller of the open water pump that a kind of ability of drawing water is strong is provided.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of impeller of open water pump, described impeller comprises the multiple blades that extend vertically that are positioned at the axle at center and are uniformly distributed circumferentially on the side face of axle, described blade is divided into interconnective epimere and hypomere in the axial direction, it is characterized in that, the bottom of at least hypomere of described blade is along the sense of rotation smooth curved gradually of impeller on the side face of axle, and the hypomere height of described blade and the aspect ratio of epimere height are 1~5.
Preferably, the hypomere height of described blade and the aspect ratio of epimere height are 3.
For at current from wheel bottom upwards time, the broadening gradually of the runner of water, has played an effect that reduces flow velocity, the epimere radial dimension of described blade is 1~5 with the radial dimension ratio of hypomere radial dimension.
Preferably, the epimere radial dimension of described blade is 4/3 with the radial dimension ratio of hypomere radial dimension.
In one embodiment of the invention, the epimere of described blade is vertical with the side face of axle, hypomere on the side face of axle along the sense of rotation smooth curved gradually of impeller, and bending part distortion in sense of rotation.
In another embodiment of the present invention, the epimere of described blade is vertical with the side face of axle, hypomere on the side face of axle along the sense of rotation level and smooth curved sigmoid gradually of impeller.
In another embodiment of the present invention, the hypomere of described blade is inclined upwardly to abaxial outer side surface gradually by the inner side surface near axle.
For in the time that current are moved to top by bottom along with the rotation of impeller, not only flow velocity reduces gradually, and due to the effect of arc shaped surface, the flow direction of current can be from Vertical direction, in the time of the top of axle, become laterally, thereby arc shaped surface plays the effect of guiding to current, make current in the situation that of blow-by impeller, also can change the flow direction, the top outer periphery of described axle is outwards overturn and is formed a circle arc shaped surface.
In order to coordinate with the arc shaped surface at the top of axle, better current are played the effect of guiding, the top of described blade is also an arc shaped surface, the arc shaped surface of described vane tip is identical with the radian of the arc shaped surface at axle top.
Compared with prior art, the invention has the advantages that: by the epimere of blade and hypomere are arranged to suitable aspect ratio, impeller can drawn water compared with low water level, the foam that is not easy that the wash water of water surface or swill are formed is involved in impeller and affects and draw water, and can draw enough flows from water inlet; The epimere of blade is arranged to radial dimension and is greater than hypomere, can make current in the process rising, runner is broadening gradually, has played and reduced the axially upwards effect of flow velocity; Turn up and be formed with arc shaped surface at the end face of axle, make current not only can reduce axially flow velocity upwards at this, and can also can be by longitudinally changing over laterally in packing less situation.
Accompanying drawing explanation
Fig. 1 is first embodiment's of impeller of the present invention schematic diagram;
Fig. 2 is first embodiment's of impeller of the present invention perspective view;
Fig. 3 is second embodiment's of impeller of the present invention schematic diagram;
Fig. 4 is second embodiment's of impeller of the present invention perspective view;
Fig. 5 is the 3rd embodiment's of impeller of the present invention schematic diagram;
Fig. 6 is the 3rd embodiment's of impeller of the present invention perspective view;
Fig. 7 is the sectional view of the applied water pump of impeller of the present invention.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment one
Referring to Fig. 1 and Fig. 2, a kind of impeller of open water pump, impeller 3 comprises the axle 31 at center and the multiple blades 32 that extend vertically that are uniformly distributed circumferentially on the side face of axle 31, the lower end of axle 31 is for being connected with the output shaft (not shown) of the motor for driving water pump, thereby in the time that motor rotates, can drives impeller 3 rotate.
Blade 32 can be divided into two sections in the axial direction, i.e. the hypomere 322 of the epimere 321 of blade 32, and blade 32, and epimere 321 and hypomere 322 are one-body molded.The epimere 321 of blade 32 extends along the axial plane of axle 31, and simultaneously vertical with the outer circumferential face of axle 31, the hypomere 322 of blade 32 at least in bottom on the side face of axle 31 the sense of rotation smooth curved gradually along impeller 3, the distortion on bending direction of the part of this bending simultaneously.The setting that blade 32 is such, can make in the time that blade 32 rotates, its bottom can upwards be lifted water, water can be moved from the below of impeller 3 upward from the runner being separated out between between blade 32, even impeller 3 not in sealing space in, there is no the effect of vacuum, still can draw water, along with the rotation of impeller 3 is delivered to top by water from bottom.
In the present invention, the preferably 1-5 of aspect ratio of the hypomere 322 of blade 32 and epimere 321, be more preferably 1/3, the relative epimere 322 of hypomere 322 of blade 32 is longer, the position drawing water is longer, the water level that can make blade 32 draw water is thus lower, and the foam that is not easy that the wash water of water surface or swill are formed is involved in impeller 3 and impact draws water, and can draw enough flows from water inlet.
Hereinbefore, the hypomere 322 of blade 32 be smooth curved in bottom, those skilled in the art can recognize, this bending also can occur in whole hypomere 322, or whole epimere 321 and hypomere 322, be whole blade 32, can upwards lift from lowermost end current as long as form the runner of a smooth curved.
Epimere 321 radial dimensions of blade 32 are larger, and the radial dimension of hypomere 322 is less, and when current are from impeller 3 bottoms upwards time, the broadening gradually of the runner of water, has played an effect that reduces flow velocity.Preferably, the radial dimension of epimere 321 and hypomere 322, than for 1-5, is more preferably 4/3.
The top outer periphery of the axle 31 of impeller 3 is outwards overturn and is formed a circle arc shaped surface 311, therefore, in the time that current are moved to top by bottom along with the rotation of impeller 3, not only flow velocity reduces gradually, and due to the effect of arc shaped surface 311, the flow direction of current can be from Vertical direction, in the time of the top of axle 31, become laterally, thereby arc shaped surface 311 plays the effect of guiding to current, make current in the situation that of blow-by impeller 3, also can change the flow direction.Preferably, the end face of the epimere 321 of blade 32 also can form an arc shaped surface turning up, and its radian is identical with the radian of the arc shaped surface 311 at axle 31 tops.
Embodiment two
Referring to Fig. 3 and Fig. 4, for second embodiment of impeller of the present invention, in the present embodiment, be with the difference of above-described embodiment one, the hypomere 322 ' of blade 32 ' level and smooth curved sigmoid gradually in the sense of rotation of impeller, hypomere 322 ' is all vertical with the side face of axle 31 with epimere 321 '.
Embodiment three
Referring to Fig. 5 and Fig. 6, for the 3rd embodiment of impeller of the present invention, in the present embodiment, be with the difference of above-described embodiment two, blade 32 ' ' hypomere 322 ' ' smooth curved gradually in the sense of rotation of impeller, simultaneously by the inner side surface near axle 31 to being inclined upwardly gradually away from the outer side surface of axle 31, all face tilts of form epimere 321 ' ' vertical with the side face of axle 31, hypomere 322 ' ' and axle 31.
Impeller of the present invention can, for open water pump, due to the structure of himself, just can make current flow into from impeller below, laterally flows out from upper impeller, and simple in structure, using effect is good.Referring to Fig. 7, open water pump comprises upper shell 1 and lower shell body 2, and upper shell 1 and lower shell body 2 contact with each other and form an accommodating cavity for placing impeller 3.In upper shell 1, be formed with accommodating cavity 11 on, for the epimere of accommodating blade, in lower shell body 2, be formed with accommodating cavity 21, for the hypomere of accommodating blade.Between upper shell 1 and lower shell body 2, needn't be tightly connected, as, the periphery of lower shell body 2 can be formed with stepped part 22, and upper shell 1 is positioned at accommodating cavity 11 part around and can be held in stepped part 22.The below of lower shell body 2 is opened wide, current can enter into impeller from the below of lower shell body 2 and side, be below and the side that the water inlet of water pump is positioned at lower shell body 2, the end face sealing of relatively going up accommodating cavity 11 of upper shell 1, current flow out from the side of upper accommodating cavity 11, be the side that the water outlet of water pump is positioned at the upper accommodating cavity 11 of upper shell 1, as shown in the arrow in Fig. 7, be water (flow) direction.Preferably, the end of the hypomere of blade preferably, lower than the bottom surface of lower accommodating cavity 21, is exposed to lower accommodating cavity 21 downwards.
Preferably, axle 31 is hollow, upper shell 1 has the lower dent 12 identical with arc shaped surface 311 radians at axle 31 tops with axle 31 corresponding positions, top, make thus impeller 3 when rotated, between the lower dent 12 of the top of axle 31 and upper shell 1, produce a vacuum area, make the top of axle 31 produce a downward suction to upper shell 1, upper shell 1 is held.Such structure makes not need the extra mechanism that is fixedly connected with that both are connected between upper shell 1 and lower shell body 2, only upper shell 1 need to be held on lower shell body 2.Or, between upper shell 1 and lower shell body 2, also can adopt the mechanism that removably connects comparatively easily that both are connected, as spinner etc., the water pump structure that upper shell 1, lower shell body 2 and impeller 3 are formed is more stable.

Claims (9)

1. the impeller of an open water pump, described impeller (3) comprises the multiple blades that extend vertically that are positioned at the axle (31) at center and are uniformly distributed circumferentially on the side face of axle (31), described blade is divided into interconnective epimere and hypomere in the axial direction, it is characterized in that, the bottom of at least hypomere of described blade is along the sense of rotation smooth curved gradually of impeller on the side face of axle (31), and the hypomere height of described blade and the aspect ratio of epimere height are 1~5.
2. the impeller of open water pump as claimed in claim 1, is characterized in that, the hypomere height of described blade and the aspect ratio of epimere height are 3.
3. the impeller of open water pump as claimed in claim 1, is characterized in that, the epimere radial dimension of described blade is 1~5 with the radial dimension ratio of hypomere radial dimension.
4. the impeller of open water pump as claimed in claim 3, is characterized in that, the epimere radial dimension of described blade is 4/3 with the radial dimension ratio of hypomere radial dimension.
5. the impeller of open water pump as claimed in claim 1, it is characterized in that, the epimere of described blade is vertical with the side face of axle (31), hypomere on the side face of axle (31) along the sense of rotation smooth curved gradually of impeller, and bending part distortion in sense of rotation.
6. the impeller of open water pump as claimed in claim 1, is characterized in that, the epimere of described blade is vertical with the side face of axle (31), hypomere on the side face of axle (31) along the sense of rotation level and smooth curved sigmoid gradually of impeller.
7. the impeller of open water pump as claimed in claim 6, is characterized in that, the hypomere of described blade by near the inner side surface of axle (31) to being inclined upwardly gradually away from the outer side surface of axle (31).
8. the impeller of open water pump as claimed in claim 1, is characterized in that, the top outer periphery of described axle (31) is outwards overturn and formed a circle arc shaped surface (311).
9. the impeller of open water pump as claimed in claim 8, is characterized in that, the top of described blade is also an arc shaped surface, and the arc shaped surface of described vane tip is identical with the radian of the arc shaped surface (311) at axle (31) top.
CN201320890047.0U 2013-06-05 2013-12-31 Impeller of open type water pump Expired - Lifetime CN203670268U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320890047.0U CN203670268U (en) 2013-06-05 2013-12-31 Impeller of open type water pump

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201310220430 2013-06-05
CN201310220430.X 2013-06-05
CN201320890047.0U CN203670268U (en) 2013-06-05 2013-12-31 Impeller of open type water pump

Publications (1)

Publication Number Publication Date
CN203670268U true CN203670268U (en) 2014-06-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235060A (en) * 2013-06-05 2014-12-24 宁波方太厨具有限公司 Impeller of open type water pump
WO2015100703A1 (en) * 2013-12-31 2015-07-09 宁波方太厨具有限公司 Open water pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104235060A (en) * 2013-06-05 2014-12-24 宁波方太厨具有限公司 Impeller of open type water pump
WO2015100704A1 (en) * 2013-12-31 2015-07-09 宁波方太厨具有限公司 Impeller of open-type water pump
WO2015100703A1 (en) * 2013-12-31 2015-07-09 宁波方太厨具有限公司 Open water pump

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CX01 Expiry of patent term

Granted publication date: 20140625

CX01 Expiry of patent term