CN206957939U - A kind of submersible pump of combination type blade wheel - Google Patents
A kind of submersible pump of combination type blade wheel Download PDFInfo
- Publication number
- CN206957939U CN206957939U CN201720819592.9U CN201720819592U CN206957939U CN 206957939 U CN206957939 U CN 206957939U CN 201720819592 U CN201720819592 U CN 201720819592U CN 206957939 U CN206957939 U CN 206957939U
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- Prior art keywords
- combination type
- blade wheel
- type blade
- passage
- pump
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- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of submersible pump of combination type blade wheel, the pump housing including sealed construction, the pump housing includes the tubular pump case and impeller spiral case connected by flange, and the impeller spiral case side is outwardly to be extended and be connected with lifting pipe in its extended end portion；Be provided with motor in the pump case, the power transmission shaft on motor passes through the annular seal space being arranged in pump case and is connected in the combination type blade wheel being arranged in impeller spiral case；Opposite side of the impeller spiral case in the connection end with tubular pump case is provided with water inlet, and the base for being used for supporting is provided with water inlet bottom.The utility model is simple in construction, pass through the combination type blade wheel structure of convenient dismounting, manufacture difficulty and manufacturing cost can be reduced, because the Unitary Impeller used in the prior art is three-dimensional twisted blade, linear complicated processing difficulty is big, therefore by dismountable structure design, be advantageous to later maintenance and replacing.
Description
Technical field
It the utility model is related to immersible pump apparatus field, in particular to a kind of submersible pump of combination type blade wheel.
Background technology
Immersible pump is a kind of motor and the direct-connected integral structure of water pump, is generally pulled the plug and carries out water lift operation.It is logical
Cross the cable stretched into water with motor connection and provide electric energy for it, after electrical power, just impeller rotates, and immersible pump is attached
Thrown away in the near liquid suction pump housing and by impeller and obtain certain initial velocity, finally discharged from emersed lifting pipe.
According to different usage scenarios, the immersible pump of different model can be used, but its principle is the rotation liquid by centrifugal impeller
Applying external force makes it be promoted to the water surface, therefore impeller is the core texture of immersible pump.
General impeller be stainless steel, and immersible pump uses double shrouded wheel, the double shrouded wheel by blade and before,
Back shroud forms, and the efficiency of double shrouded wheel is higher, and manufacture difficulty is larger, using most in pipeline pump.It is molten suitable for conveying clear water
The less cleaning liquid without particle of the viscositys such as liquid.Because its manufacture difficulty is larger, its cost is higher, if impeller failure
Entirety is needed to be changed, therefore rear current cost is higher.
Utility model content
For the above-mentioned welding fabrication of integral type in the prior art impeller later maintenance cost it is higher the problem of, this practicality is new
Type provides a kind of submersible pump using combination type blade wheel structure.
The utility model is achieved through the following technical solutions：A kind of submersible pump of combination type blade wheel, including sealed knot
The pump housing of structure, the pump housing include the tubular pump case and impeller spiral case connected by flange, the impeller spiral case side convex
Go out to extend and be connected with lifting pipe in its extended end portion；
Be provided with motor in the pump case, the power transmission shaft on motor is through the annular seal space being arranged in pump case and in being arranged on leaf
Take turns the combination type blade wheel drive connection in spiral case；
The bottom of the impeller spiral case is provided with water inlet, and the base for being used for supporting is provided with water inlet bottom.
Principle of the present utility model：Described casing is sealing structure, and its internal annular seal space is entered for liquid barrier
Entering motor causes the structure of motor damage.Immersible pump uses Alternating Current Power Supply, the motor part O-ring seals of pump or mechanical seal
Sealed, ensure safe and environment-friendly, the power saving used.After electrical power, motor driven combination type blade wheel rotates, and liquid is just
Enter from close to the impeller spiral case opening of base position in impeller spiral case.Because its knot of the combination type blade wheel that the utility model uses
Structure is identical with existing double shrouded wheel, therefore liquid initially enters in combination type blade wheel center and is thrown toward surrounding immediately.Finally quilt
Get rid of to enter in lifting pipe to the liquid of surrounding and discharge,
Preferably to realize the utility model, further, the combination type blade wheel includes back shroud, front shroud and single
Rate blade；The single-curvature blade is connected on back shroud, and each single-curvature blade is corresponded on the back shroud and is equipped with one
Or more bolts, the bolt through back shroud and single-curvature blade and with front shroud screw thread coordinate by back shroud, front shroud and
Single-curvature blade fixed Combination is combination type blade wheel.Combination type blade wheel is defined now, needs blade being welded on originally
On front shroud and back shroud, front shroud, back shroud and single-curvature blade three are directly combined by fixation by bolt now,
It is not only convenient for dismantling, and different blades can be changed to tackle different use environments., can once combination type blade wheel is damaged
Its internal damaged structure is directly changed, reduces later maintenance expense.Described single-curvature blade is a kind of bend in one direction
Laminated structure, and the groove structure being adapted with single-curvature blade is equipped with front shroud and back shroud, to ensure clamping
When, two curls can be fitted on front shroud and back shroud single-curvature blade up and down.
Further, back shroud side home position is fixed with the tapered cylinder perpendicular to back shroud, tapered cylinder
Surrounding is provided with two or more deep-slotted chip breakers in the first-class central angle of back shroud, and A through holes are provided with deep-slotted chip breaker one end；It is described
Single-curvature blade bottom curl is provided with the arc-shaped base coordinated with deep-slotted chip breaker, and described arc-shaped base one end is provided with corresponding with A through holes
B through holes；The front shroud is disc-shaped structure, and front shroud home position is provided with opening, and the opening edge edge is convex to side
Play extension and form material sucking port, two or more and A through holes are disposed with the first-class central angle of the front shroud of material sucking port opposite side
Corresponding screw；Single-curvature blade is placed in the deep-slotted chip breaker of back shroud, bolt passed from A through holes then pass through B through holes and with
Screw screw thread, which coordinates, causes single-curvature blade to be clamped between front shroud and back shroud.Described arc-shaped base is matched somebody with somebody with deep-slotted chip breaker
Conjunction can play preferable limit effect, and to the opening of the material sucking port that side extends and the close base of impeller spiral case on front shroud
Coordinate, liquid directly enters in combination type blade wheel from material sucking port.And described A through holes parallel to axis cross-sectional shapes to be T-shaped,
It expands end close to back shroud bottom.The bolt can be sunk in A through holes completely when fixing, and the head of bolt is complete
Just submerged in A through holes after fixing entirely so that the bottom surface of whole back shroud keeps smooth.During installation, first single-curvature blade is put
On back shroud so that arc-shaped base is sunk in deep-slotted chip breaker.And front shroud is now placed on back shroud top again, and by every group
Corresponding screw, A through holes and the alignment of B through holes, is fixed from back shroud bottom insertion bolt.
Further, inner passage is provided with inside the tapered cylinder, inner passage includes interconnected passage A and led to
Road B, the passage B cross-sectional areas are less than passage A cross-sectional areas, and passage B is arranged on back shroud bottom surface；The motor
Power transmission shaft penetrates passage A and the nut for propping up passage B upper sheds edge is provided with passage A and passage B joint face top.It is described
Internal channel structure be used for fixed conveyor axle, inner passage is similarly T-shaped parallel to the section of its axis, and transmission shaft extension
Enter that the passage B at end diameter is smaller, so as to ensure that described nut can will be whole when coordinating with end part of driving shaft screw thread
Individual combination type blade wheel is fixed on power transmission shaft.
Further, the front shroud is being provided with upper groove corresponding with single-curvature blade provided with material sucking port opposite side.Institute
The upper groove stated realizes limit effect by coordinating with curl on single-curvature blade.
Further, it is equipped with the mechanical seal being socketed on power transmission shaft at the annular seal space both-side opening.
Further, the base is provided with annular opening, and metal filter screen is provided with annular opening.Described gold
Category screen pack can stop that the fixed substance of greater particle size enters in impeller spiral case, avoid that combination type blade wheel is caused to damage.
The utility model compared with prior art, has advantages below and beneficial effect：
The utility model is simple in construction, by the combination type blade wheel structure of convenient dismounting, can reduce manufacture difficulty and system
This is caused, because the Unitary Impeller used in the prior art is three-dimensional twisted blade, linear complicated processing difficulty is big, therefore logical
Dismountable structure design is crossed, is advantageous to later maintenance and replacing.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, other spies of the present utility model
Sign, objects and advantages will become apparent：
Fig. 1 is pump body structure schematic diagram of the present utility model；
Fig. 2 is combination type blade wheel structural representation of the present utility model；
Fig. 3 is the cross-sectional view of combination type blade wheel of the present utility model；
Fig. 4 is rear cover plate structure schematic diagram of the present utility model；
Fig. 5 is single-curvature blade construction schematic diagram of the present utility model.
Wherein：1-pump housing, 101-pump case, 102-impeller spiral case, 2-lifting pipe, 3-combination type blade wheel, 301-after
Cover plate, 302-front shroud, 303-single-curvature blade, 304-tapered cylinder, 305-deep-slotted chip breaker, 306-A through holes, 307-B
Through hole, 308-screw, 309-arc-shaped base, 4-base, 401-metal filter screen, 5-bolt, 6-upper groove.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can also be joined directly together or indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State concrete meaning of the term in the utility model.
Embodiment 1：
A kind of submersible pump of combination type blade wheel 3 of the present embodiment, as depicted in figs. 1 and 2, include the pump of sealed construction
Body 1, the pump housing 1 include the tubular pump case 101 and impeller spiral case 102 connected by flange, and the impeller spiral case 102 1 is lateral
Outer protrusion extends and is connected with lifting pipe 2 in its extended end portion；It is provided with motor in the pump case 101, the power transmission shaft on motor is worn
Cross the annular seal space being arranged in pump case 101 and be connected in the combination type blade wheel 3 being arranged in impeller spiral case 102；The leaf
Wheel spiral case 102 bottom is provided with water inlet, and the base 4 for being used for supporting is provided with water inlet bottom.Described pump case 101 is sealing
Structure, its internal annular seal space are the structures for causing motor damage into motor for liquid barrier.After electrical power, motor
Combination type blade wheel 3 is driven to rotate, liquid just enters in impeller spiral case 102 from the opening of impeller spiral case 102 at base 4.
Because its structure of the combination type blade wheel 3 of the utility model use is identical with existing double shrouded wheel, therefore liquid initially enters combination
Around being thrown toward in the center of formula impeller 3 and immediately.Finally be thrown toward surrounding liquid can enter lifting pipe 2 in discharge,
Embodiment 2：
The present embodiment is on the basis of above-described embodiment, is further limited, as shown in Fig. 3, Fig. 4 and Fig. 5, described group
Box-like impeller 3 includes back shroud 301, front shroud 302 and single-curvature blade 303；The single-curvature blade 303 is connected to back shroud
On 301, each single-curvature blade 303 is corresponded on the back shroud 301 and is equipped with one or more bolt 5, the bolt 5 passes through
Back shroud 301 and single-curvature blade 303 simultaneously coordinate back shroud 301, front shroud 302 and single-curvature leaf with the screw thread of front shroud 302
The fixed Combination of piece 303 is combination type blade wheel 3.Combination type blade wheel 3 is defined now, needs blade being welded on protecgulum originally
On plate 302 and back shroud 301, now directly by bolt 5 by front shroud 302, back shroud 301 and the three of single-curvature blade 303
Fixation is combined, is not only convenient for dismantling, and different blades can be changed to tackle different use environments.Once combination
Formula impeller 3 is impaired, can directly change its internal damaged structure, reduce later maintenance expense.Described single-curvature blade 303 is
For a kind of laminated structure of bend in one direction, and it is equipped with front shroud 302 and back shroud 301 and is fitted with the phase of single-curvature blade 303
The groove structure answered, with ensure clamping when, single-curvature blade about 303 two curls can be fitted in front shroud 302 with after
On cover plate 301.The other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 3：
The present embodiment is on the basis of above-described embodiment, is further limited, the side home position of back shroud 301
The tapered cylinder 304 perpendicular to back shroud 301 is fixed with, the surrounding of tapered cylinder 304 is provided with 301 first-class central angle of back shroud
Two or more deep-slotted chip breakers 305, A through holes 306 are provided with the one end of deep-slotted chip breaker 305；The bottom of single-curvature blade 303 is bent
Side is provided with the arc-shaped base 309 coordinated with deep-slotted chip breaker 305, and described one end of arc-shaped base 309 is provided with to be led to 306 corresponding B of A through holes
Hole 307；The front shroud 302 is disc-shaped structure, and the home position of front shroud 302 is provided with opening, and the opening edge is along to one
The raised extension in side forms material sucking port, and two or more are disposed with the 302 first-class central angle of front shroud of material sucking port opposite side
Screw 308 corresponding with A through holes 306；Single-curvature blade 303 is placed in the deep-slotted chip breaker 305 of back shroud 301, and bolt 5 leads to from A
Hole 306, which passes, to be then passed through B through holes 307 and coordinates with the screw thread of screw 308 so that single-curvature blade 303 is clamped in front shroud
Between 302 and back shroud 301.Described arc-shaped base 309 coordinates with deep-slotted chip breaker 305 can play preferable limit effect, and
Coordinate on front shroud 302 to the material sucking port that side extends and opening of the impeller spiral case 102 close to base 4, liquid is directly from suction
Mouth enters in combination type blade wheel 3.And described A through holes 306 are T-shaped parallel to the cross-sectional shapes of axis, it is close to back shroud 301
Expand end in bottom.The bolt 5 can be sunk in A through holes 306 completely when fixing, and the head of bolt 5 is being completely fixed
Just submerge in A through holes 306 afterwards so that the bottom surface of whole back shroud 301 keeps smooth.During installation, first by single-curvature blade 303
It is placed on back shroud 301 so that arc-shaped base 309 is sunk in deep-slotted chip breaker 305.And front shroud 302 is now placed on bonnet again
The top of plate 301, and every group of corresponding screw 308, A through holes 306 and B through holes 307 are alignd, inserted from the bottom of back shroud 301
Enter bolt 5 to be fixed.The other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 4：
The present embodiment is on the basis of above-described embodiment, is further limited, and the inside of tapered cylinder 304 is provided with interior
Portion's passage, inner passage include interconnected passage A and passage B, and the passage B cross-sectional areas are less than passage A cross sections
Area, and passage B is arranged on the bottom surface of back shroud 301；The power transmission shaft of the motor penetrates passage A and in passage A and passage B company
Junction top is provided with the nut for propping up passage B upper sheds edge.Described internal channel structure is used for fixed conveyor axle, and inside is logical
Road is similarly T-shaped parallel to the section of its axis, and the diameter of the passage B in power transmission shaft inserting end is smaller, so as to ensure
Whole combination type blade wheel 3 can be fixed on power transmission shaft by described nut when coordinating with end part of driving shaft screw thread.This implementation
The other parts of example are same as the previously described embodiments, repeat no more.
Embodiment 5：
The present embodiment is on the basis of above-described embodiment, is further limited, and the front shroud 302 is provided with material sucking port
Opposite side is provided with upper groove 6 corresponding with single-curvature blade 303.Described upper groove 6 by with curl on single-curvature blade 303
Limit effect is realized in cooperation.The other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 6：
The present embodiment is on the basis of above-described embodiment, is further limited, and set is equipped with annular seal space both-side opening
The mechanical seal being connected on power transmission shaft.The other parts of the present embodiment are same as the previously described embodiments, repeat no more.
Embodiment 7：
The present embodiment is on the basis of above-described embodiment, is further limited, and the base 4 is provided with annular opening,
And metal filter screen 401 is provided with annular opening.Described metal filter screen 401 can stop the fixed substance of greater particle size
Into in impeller spiral case 102, avoid that combination type blade wheel 3 is caused to damage.The other parts of the present embodiment and above-described embodiment phase
Together, repeat no more.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
In the case where not departing from principle and objective of the present utility model a variety of change, modification, replacement and modification can be carried out to these embodiments,
The scope of the utility model is limited by claim and its equivalent.
Claims (7)
1. a kind of submersible pump of combination type blade wheel, include the pump housing of sealed construction（1）, it is characterised in that：The pump housing（1）
Including the tubular pump case connected by flange（101）With impeller spiral case（102）, the impeller spiral case（102）Side is outwardly
Extend and be connected with lifting pipe in its extended end portion（2）；
The pump case（101）Interior to be provided with motor, power transmission shaft on motor is through being arranged on pump case（101）Interior annular seal space and with setting
Put in impeller spiral case（102）Interior combination type blade wheel（3）Drive connection；
The impeller spiral case（102）Bottom be provided with water inlet, and the base for being used for supporting is provided with water inlet bottom（4）.
A kind of 2. submersible pump of combination type blade wheel according to claim 1, it is characterised in that：The combination type blade wheel
（3）Including back shroud（301）, front shroud（302）With single-curvature blade（303）；The single-curvature blade（303）It is connected to bonnet
Plate（301）On, the back shroud（301）The upper each single-curvature blade of correspondence（303）It is equipped with one or more bolt
（5）, the bolt（5）Through back shroud（301）With single-curvature blade（303）And and front shroud（302）Screw thread coordinates bonnet
Plate（301）, front shroud（302）With single-curvature blade（303）Fixed Combination is combination type blade wheel（3）.
A kind of 3. submersible pump of combination type blade wheel according to claim 2, it is characterised in that：The back shroud（301）
Side home position is fixed with perpendicular to back shroud（301）Tapered cylinder（304）, tapered cylinder（304）Surrounding is in back shroud
（301）First-class central angle is provided with two or more deep-slotted chip breakers（305）, in deep-slotted chip breaker（305）One end is provided with A through holes
（306）；The single-curvature blade（303）Bottom curl is provided with and deep-slotted chip breaker（305）The arc-shaped base of cooperation（309）, the arc
Shape base（309）One end is provided with and A through holes（306）Corresponding B through holes（307）；The front shroud（302）For disc-shaped structure,
And front shroud（302）Home position is provided with opening, and the opening edge forms material sucking port along to the raised extension in side, another in material sucking port
The front shroud of side（302）First-class central angle is disposed with two or more and A through holes（306）Corresponding screw（308）；It is single
Curvature blade（303）It is placed on back shroud（301）Deep-slotted chip breaker（305）It is interior, bolt（5）From A through holes（306）Pass and then pass through
B through holes（307）And and screw（308）Screw thread, which coordinates, causes single-curvature blade（303）It is clamped in front shroud（302）And back shroud
（301）Between.
A kind of 4. submersible pump of combination type blade wheel according to claim 3, it is characterised in that：The tapered cylinder
（304）Inside is provided with inner passage, and inner passage includes interconnected passage A and passage B, the passage B cross-sectional areas
Less than passage A cross-sectional areas, and passage B is arranged on back shroud（301）Bottom surface；The power transmission shaft of the motor penetrates passage A simultaneously
The nut for propping up passage B upper sheds edge is provided with passage A and passage B joint face top.
A kind of 5. submersible pump of combination type blade wheel according to claim any one of 2-4, it is characterised in that：The protecgulum
Plate（302）It is provided with and single-curvature blade provided with material sucking port opposite side（303）Corresponding upper groove（6）.
A kind of 6. submersible pump of combination type blade wheel according to claim any one of 1-4, it is characterised in that：The sealing
The mechanical seal being socketed on power transmission shaft is equipped with chamber both-side opening.
A kind of 7. submersible pump of combination type blade wheel according to claim any one of 1-4, it is characterised in that：The base
（4）Annular opening is provided with, and metal filter screen is provided with annular opening（401）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819592.9U CN206957939U (en) | 2017-07-07 | 2017-07-07 | A kind of submersible pump of combination type blade wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720819592.9U CN206957939U (en) | 2017-07-07 | 2017-07-07 | A kind of submersible pump of combination type blade wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206957939U true CN206957939U (en) | 2018-02-02 |
Family
ID=61383211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720819592.9U Expired - Fee Related CN206957939U (en) | 2017-07-07 | 2017-07-07 | A kind of submersible pump of combination type blade wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206957939U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412755A (en) * | 2018-05-14 | 2018-08-17 | 安徽永华电机科技有限公司 | A kind of easy-to-dismount pump shell |
| CN109356881A (en) * | 2018-12-13 | 2019-02-19 | 阜宁县元丰泵业有限公司 | A kind of stainless steel water pump cast impeller |
| CN110439849A (en) * | 2019-09-17 | 2019-11-12 | 河南瑞昂畜牧科技有限公司 | Impeller of pump and receded disk impeller pump |
-
2017
- 2017-07-07 CN CN201720819592.9U patent/CN206957939U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412755A (en) * | 2018-05-14 | 2018-08-17 | 安徽永华电机科技有限公司 | A kind of easy-to-dismount pump shell |
| CN109356881A (en) * | 2018-12-13 | 2019-02-19 | 阜宁县元丰泵业有限公司 | A kind of stainless steel water pump cast impeller |
| CN110439849A (en) * | 2019-09-17 | 2019-11-12 | 河南瑞昂畜牧科技有限公司 | Impeller of pump and receded disk impeller pump |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180202 |