CN108167454A - A kind of mixed-flow flushing valve - Google Patents
A kind of mixed-flow flushing valve Download PDFInfo
- Publication number
- CN108167454A CN108167454A CN201711458987.1A CN201711458987A CN108167454A CN 108167454 A CN108167454 A CN 108167454A CN 201711458987 A CN201711458987 A CN 201711458987A CN 108167454 A CN108167454 A CN 108167454A
- Authority
- CN
- China
- Prior art keywords
- room
- lower oil
- valve
- mixed
- spherical cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 28
- 239000003921 oil Substances 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 241000446313 Lamella Species 0.000 claims abstract description 31
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 8
- 229920000459 Nitrile rubber Polymers 0.000 claims description 21
- 238000005984 hydrogenation reaction Methods 0.000 claims description 12
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 6
- 229920005549 butyl rubber Polymers 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 229920003049 isoprene rubber Polymers 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 239000005062 Polybutadiene Substances 0.000 claims description 5
- 229920002857 polybutadiene Polymers 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 2
- 238000005086 pumping Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/14—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with ball-shaped valve member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
Abstract
The present invention relates to a kind of mixed-flow flushing valves, with flushing valve body, it rinses on valve body and is provided with water inlet flow channel, valve and outlet passage, mixed flow nozzle is provided at outlet passage, the inside for rinsing valve body has interconnected oil chamber and lower oil cavitie room, oil chamber volume and lower oil cavitie room volume it is variable, oil chamber open-mouth be provided with can free shrink expansion upper oil lamella, the open-mouth of lower oil cavitie room be provided with can free shrink expansion lower oil lamella, the inside for rinsing valve body also has spherical cavity room, spherical cavity room, which is located at, to oil between chamber and lower oil lamella, spherical cavity is provided with gravitation ball in room, gravitation ball is driven in the indoor lifting of spherical cavity by hydraulic oil.Water body realizes that valve is automatically turned on or closed by valve using bernoulli principle, does not need to, by electric or pneumatic adjusting, save the energy, be first rinsed bottom of pond when pumping plant brings into operation, prevents pumping plant bottom from generating siltation.
Description
Technical field
The present invention relates to the technical field of sewage disposal, especially a kind of mixed-flow flushing valve.
Background technology
Integrated prefabricated pumping plant is generally disposed in sewage and storm sewer road system, to take out liter municipal sewage and rain
Water, effect are the elevations of lifting sewage and rainwater, since the area that urban duct net is collected is wider, pumping plant are needed to promote medium
Elevation.Existing most of integrated prefabricated pumping plants can be furnished with anti-siltation pedestal in the market, work as fault of water pump, when pumping plant stops,
If do not run for a long time, bottom of pond can generate siltation, therefore need to be rinsed bottom of pond in water pump initial launch, adopt at present
Bottom of pond is carried out with external hydraulic giant to clean, and due to needing emergent troop outside well, therefore is used inconvenient.
Invention content
The technical problem to be solved by the present invention is to：In order to overcome the deficiencies in the prior art, a kind of mixed-flow is provided
Flushing valve, water body are realized that valve is automatically turned on or closed using bernoulli principle by valve, are not needed to through electronic or gas
It is dynamic to adjust, the energy has been saved, bottom of pond has been rinsed first when pumping plant brings into operation, has prevented pumping plant bottom from generating siltation.
The technical solution adopted by the present invention to solve the technical problems is：A kind of mixed-flow flushing valve has flushing valve valve
Body is provided with water inlet flow channel, valve and outlet passage on the flushing valve body, mixed flow is provided at the outlet passage
Nozzle, rinsing the inside of valve body has interconnected oil chamber and a lower oil cavitie room, the volume of the chamber that oils and
The volume of the lower oil cavitie room is variable, the open-mouth of the chamber that oils be provided with can free shrink expansion upper oil lamella, under
The open-mouth of oil-in chamber be provided with can free shrink expansion lower oil lamella, rinsing the inside of valve body also has spherical cavity room, institute
The spherical cavity room stated, which is located at, to oil between chamber and lower oil lamella, gravitation ball is provided in spherical cavity room, the gravitation ball is in spherical cavity
Indoor lifting is driven by hydraulic oil.
Further specifically, in above-mentioned technical proposal, the water inlet flow channel, valve and outlet passage are located at same
On straight line, and valve is located at water inlet flow channel and outlet passage between the two.
Further specifically, in above-mentioned technical proposal, the diameter of the gravitation ball is more than the bore of valve, and gravity
The diameter of ball is more than the bore of water inlet flow channel.
Further specifically, in above-mentioned technical proposal, generated when flow is by rinsing valve body, in spherical cavity room negative
Pressure, lower oil lamella rise, and the volume of lower oil cavitie room becomes larger, and the indoor hydraulic oil of upper oil cavitie enters lower oil cavitie room, and gravitation ball is carried
It rises, gravitation ball blocks valve, and valve is automatically closed；Gravitation ball and lower oil lamella are in the dead weight of gravitation ball and the effect of water feeding pressure
Lower squeeze declines, and valve automatically turns on.
Further specifically, in above-mentioned technical proposal, the spherical cavity room is in elbow, and spherical cavity room includes the first rotating part
With the second rotating part, second rotating part is located at the bottom of the first rotating part, and the bottom end of the second rotating part tend into
Water flow passage side, first rotating part and water (flow) direction vertical distribution, institute's shape between the second rotating part and the first rotating part
Into angle be obtuse angle.
Further specifically, in above-mentioned technical proposal, the upper oil lamella is by nitrile rubber, butadiene-styrene rubber, suitable fourth
Any one material system in rubber, isoprene rubber, neoprene, butyl rubber, hydrogenation nitrile rubber and hydrogenation nitrile rubber
Into preferred nitrile rubber；The lower oil lamella by nitrile rubber, butadiene-styrene rubber, butadiene rubber, isoprene rubber, neoprene,
Any one material in butyl rubber, hydrogenation nitrile rubber and hydrogenation nitrile rubber is made, preferably nitrile rubber.
Further specifically, in above-mentioned technical proposal, the thickness of the upper oil lamella is 1mm~3mm, preferred thickness
For 2mm；The thickness of the lower oil lamella is 1mm~3mm, preferred thickness 2mm.
Further specifically, in above-mentioned technical proposal, the bottom of the flushing valve body is additionally provided with pressure regulator, institute
The pressure regulator stated is used for adjusting the indoor pressure of lower oil cavitie, can achieve the effect that valve opening time is adjusted.
The beneficial effects of the invention are as follows：A kind of mixed-flow flushing valve of the present invention, using the automatic regulating valve of Purely mechanical,
Without manually, water body realizes that valve is automatically turned on or closed by valve using bernoulli principle, do not need to by electronic or
It is pneumatic to adjust, the energy has been saved, bottom of pond has been rinsed first when pumping plant brings into operation, has prevented pumping plant bottom from generating siltation.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of overall structure diagram of mixed-flow flushing valve of the present invention；
Fig. 2 is a kind of part-structure schematic diagram of mixed-flow flushing valve of the present invention；
Fig. 3 is the status diagram when gravitation ball in a kind of mixed-flow flushing valve of the present invention is promoted；
Fig. 4 is the status diagram when gravitation ball in a kind of mixed-flow flushing valve of the present invention declines.
In figure marked as：1-flushing valve body；2-water inlet flow channel；3-valve；4-outlet passage；5-mixed flow is sprayed
Mouth；6-oil chamber；7-lower oil cavitie room；8-upper oil lamella；9-lower oil lamella；10-spherical cavity room；11-gravitation ball；12—
Pressure regulator.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiments obtained without making creative work shall fall within the protection scope of the present invention.
See Fig. 1~4, a kind of mixed-flow flushing valve of the invention has and rinses valve body 1, rinses on valve body 1 and sets
There are water inlet flow channel 2, valve 3 and outlet passage 4, mixed flow nozzle 5 is provided at outlet passage 4, the inside for rinsing valve body 1 has
Interconnected oil chamber 6 and lower oil cavitie room 7, the volume for the chamber 6 that oils and the volume of lower oil cavitie room 7 are variable, upper oil cavitie
The open-mouth of room 6 be provided with can free shrink expansion upper oil lamella 8, the open-mouth of lower oil cavitie room 7 is provided with can free shrink
The lower oil lamella 9 of expansion, rinsing the inside of valve body 1 also has spherical cavity room 10, and spherical cavity room 10 is located at oil chamber 6 and lower oil film
Between layer 9, gravitation ball 11 is provided in spherical cavity room 10, lifting of the gravitation ball 11 in spherical cavity room 10 is passed by hydraulic oil
It is dynamic.
Mixed flow nozzle 5 includes interconnected medial segment, middle transition section and segmentum laterale, and medial segment is in the circle of inner wide and outer narrow
Platform shape, in the narrow strip in the wide centre in both ends, middle transition section is used for connecting medial segment and segmentum laterale, and middle transition segmentum laterale
The through-hole that mixed flow enters that can supply water is offered in section.
The hydraulic pressure of the water entered at water inlet flow channel 2 is as the hydraulic pressure of water entered at mixed flow nozzle 5, from feed water flow
The flow velocity of the water entered at road 2 and the flow velocity of water entered at mixed flow nozzle 5 are same, and mixed flow nozzle 5 plays the effect of mixed flow
Fruit, when flow passes through mixed flow nozzle 5,5 inlet of mixed flow nozzle generates negative pressure, achievees the effect that mixed flow.
When flow is by rinsing valve body 1, negative pressure is generated in spherical cavity room 10, lower oil lamella 9 rises, lower oil cavitie room 7
Volume becomes larger, and the hydraulic oil in chamber 6 that oils enters lower oil cavitie room 7, and gravitation ball 11 is promoted, and gravitation ball 11 blocks valve 3, valve
Door 3 is automatically closed；Gravitation ball 11 and lower oil lamella 9 squeeze decline, valve under the action of the dead weight of gravitation ball 11 and water feeding pressure
Door 3 automatically turns on.
The mixed-flow flushing valve, using the automatic regulating valve of Purely mechanical, without manual, water body utilizes primary by valve 3
It exerts sharp principle and realizes that valve 3 is automatically turned on or closed, do not need to, by electric or pneumatic adjusting, save the energy, pumping plant is opened
Begin first to be rinsed bottom of pond during operation, prevent pumping plant bottom from generating siltation.
Wherein, water inlet flow channel 2, valve 3 and outlet passage 4 are located on the same line, and valve 3 is located at water inlet flow channel 2
With outlet passage 4 between the two, for water inlet flow channel 2 in the cylinder for waiting bores, outlet passage 4 is in the truncated cone-shaped of interior narrow outer width, heavy
The diameter of power ball 11 is more than the bore of valve 3, can ensure 11 bumping post valve 3 of gravitation ball in this way.And the diameter of gravitation ball 11 is big
In the bore of water inlet flow channel 2, can be flowed out at water inlet flow channel 2 to avoid gravitation ball 11 in this way.
Spherical cavity room 10 is in elbow, and spherical cavity room 10 includes the first rotating part and the second rotating part, and the second rotating part is located at first
The bottom of rotating part, and 2 side of water inlet flow channel is tended in the bottom end of the second rotating part, the first rotating part is vertical with water (flow) direction to be divided
Cloth, the angle formed between the second rotating part and the first rotating part are obtuse angle.This structural modeling of spherical cavity room 10, not only just
In the lifter motion of gravitation ball 11, the descending motion of gravitation ball 11 is also allowed for, i.e., opens or closes convenient for the smooth of control valve 3
It closes.
Upper oil lamella 8 is by nitrile rubber, butadiene-styrene rubber, butadiene rubber, isoprene rubber, neoprene, butyl rubber, hydrogenation
Any one material in nitrile rubber and hydrogenation nitrile rubber is made, preferably nitrile rubber.Lower oil lamella 9 by nitrile rubber,
Appointing in butadiene-styrene rubber, butadiene rubber, isoprene rubber, neoprene, butyl rubber, hydrogenation nitrile rubber and hydrogenation nitrile rubber
A kind of material of anticipating is made, preferably nitrile rubber.
The thickness of upper oil lamella 8 is 1mm~3mm, preferred thickness 2mm.The thickness of lower oil lamella 9 is 1mm~3mm, excellent
It is 2mm to select thickness.
The bottom for rinsing valve body 1 is additionally provided with pressure regulator 12, and pressure regulator 12 is used for adjusting the pressure in lower oil cavitie room 7,
Pressure regulator 12 is in hexahedron, and the nearly outer edge of pressure regulator 12 is evenly arranged with the through-hole of several different-diameter sizes, this
The size of a little through-holes affects the pressure of hydraulic oil and the rate of climb of lower oil lamella 9, you can to reach 3 opening time of valve tune
The effect of section.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
1. a kind of mixed-flow flushing valve, it is characterised in that：With valve body (1) is rinsed, set on the flushing valve body (1)
There are water inlet flow channel (2), valve (3) and outlet passage (4), mixed flow nozzle (5) is provided at the outlet passage (4), rinse
The inside of valve body (1) has the interconnected chamber that oils (6) and lower oil cavitie room (7), the volume of the chamber that oils (6)
It is variable with the volume of the lower oil cavitie room (7), the open-mouth of the chamber that oils (6) be provided with can free shrink expansion oil
Film layer (8), the open-mouth of lower oil cavitie room (7) be provided with can free shrink expansion lower oil lamella (9), rinse valve body (1)
Internal also to have spherical cavity room (10), the spherical cavity room (10) is between the chamber that oils (6) and lower oil lamella (9), spherical cavity room
(10) gravitation ball (11) is provided in, lifting of the gravitation ball (11) in spherical cavity room (10) is passed by hydraulic oil
It is dynamic.
2. a kind of mixed-flow flushing valve according to claim 1, it is characterised in that：The water inlet flow channel (2), valve
(3) it is located on the same line with outlet passage (4), and valve (3) is positioned at water inlet flow channel (2) and outlet passage (4) the two
Between.
3. a kind of mixed-flow flushing valve according to claim 1 or 2, it is characterised in that：The gravitation ball (11) it is straight
Diameter is more than the bore of valve (3), and the diameter of gravitation ball (11) is more than the bore of water inlet flow channel (2).
4. a kind of mixed-flow flushing valve according to claim 1, it is characterised in that：When flow is by rinsing valve body (1)
When, negative pressure is generated in spherical cavity room (10), lower oil lamella (9) rises, and the volume of lower oil cavitie room (7) becomes larger, in the chamber that oils (6)
Hydraulic oil enters lower oil cavitie room (7), and gravitation ball (11) is promoted, and gravitation ball (11) blocks valve (3), and valve (3) is automatically closed；
Gravitation ball (11) and lower oil lamella (9) squeeze decline under the action of the dead weight of gravitation ball (11) and water feeding pressure, and valve (3) is certainly
It is dynamic to open.
5. a kind of mixed-flow flushing valve according to claim 1, it is characterised in that：The spherical cavity room (10) in elbow,
Spherical cavity room (10) includes the first rotating part and the second rotating part, and second rotating part is located at the bottom of the first rotating part, and
Water inlet flow channel (2) side is tended in the bottom end of second rotating part, first rotating part and water (flow) direction vertical distribution, and second
The angle formed between rotating part and the first rotating part is obtuse angle.
6. a kind of mixed-flow flushing valve according to claim 1, it is characterised in that：The upper oil lamella (8) is fine by fourth
Rubber, butadiene-styrene rubber, butadiene rubber, isoprene rubber, neoprene, butyl rubber, hydrogenation nitrile rubber and hydrogenation nitrile rubber
In any one material be made, the lower oil lamella (9) by nitrile rubber, butadiene-styrene rubber, butadiene rubber, isoprene rubber,
Any one material in neoprene, butyl rubber, hydrogenation nitrile rubber and hydrogenation nitrile rubber is made.
7. a kind of mixed-flow flushing valve according to claim 6, it is characterised in that：The thickness of the upper oil lamella (8)
For 1mm~3mm, the thickness of the lower oil lamella (9) is 1mm~3mm.
8. a kind of mixed-flow flushing valve according to claim 1, it is characterised in that：The bottom of the flushing valve body (1)
Portion is additionally provided with pressure regulator (12), and the pressure regulator (12) is for adjusting the pressure in lower oil cavitie room (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458987.1A CN108167454A (en) | 2017-12-28 | 2017-12-28 | A kind of mixed-flow flushing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458987.1A CN108167454A (en) | 2017-12-28 | 2017-12-28 | A kind of mixed-flow flushing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108167454A true CN108167454A (en) | 2018-06-15 |
Family
ID=62519368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711458987.1A Pending CN108167454A (en) | 2017-12-28 | 2017-12-28 | A kind of mixed-flow flushing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843830A (en) * | 2018-08-30 | 2018-11-20 | 华南泵业有限公司 | Automatic backwash valve and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0623713A1 (en) * | 1993-04-29 | 1994-11-09 | Itt Flygt Ab | A method and a device for automatic circulation in a waste water pump station |
| EP1154085A1 (en) * | 2000-05-12 | 2001-11-14 | Zenit S.p.A. | Intermittently operating flushing valve |
| KR20030010032A (en) * | 2001-07-25 | 2003-02-05 | 이윤호 | Flushing valve of submersible sewage pump |
| CN1912397A (en) * | 2005-08-09 | 2007-02-14 | 上海凯泉泵业（集团）有限公司 | Automatic flush valve for pollution discharge pump |
| CN201310629Y (en) * | 2008-08-29 | 2009-09-16 | 泽尼特泵业（苏州）有限公司 | Flushing valve |
| CN206918288U (en) * | 2017-05-31 | 2018-01-23 | 舒朋士泵业常州有限公司 | A kind of mixed-flow flushing valve |
-
2017
- 2017-12-28 CN CN201711458987.1A patent/CN108167454A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0623713A1 (en) * | 1993-04-29 | 1994-11-09 | Itt Flygt Ab | A method and a device for automatic circulation in a waste water pump station |
| EP1154085A1 (en) * | 2000-05-12 | 2001-11-14 | Zenit S.p.A. | Intermittently operating flushing valve |
| KR20030010032A (en) * | 2001-07-25 | 2003-02-05 | 이윤호 | Flushing valve of submersible sewage pump |
| CN1912397A (en) * | 2005-08-09 | 2007-02-14 | 上海凯泉泵业（集团）有限公司 | Automatic flush valve for pollution discharge pump |
| CN201310629Y (en) * | 2008-08-29 | 2009-09-16 | 泽尼特泵业（苏州）有限公司 | Flushing valve |
| CN206918288U (en) * | 2017-05-31 | 2018-01-23 | 舒朋士泵业常州有限公司 | A kind of mixed-flow flushing valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843830A (en) * | 2018-08-30 | 2018-11-20 | 华南泵业有限公司 | Automatic backwash valve and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 213000 Qingjiang Road, Xinbei District, Changzhou, Jiangsu 28 Applicant after: SUPUMPS ENVIRONMENT TECHNOLOGY (CHANGZHOU) Co.,Ltd. Applicant after: SUPUMPS PUMP INDUSTRY (SHANGHAI) CO.,LTD. Address before: 213000 Qingjiang Road, Xinbei District, Changzhou, Jiangsu 28 Applicant before: SUPUMPS PUMPS CHANGZHOU Co.,Ltd. Applicant before: SUPUMPS PUMP INDUSTRY (SHANGHAI) CO.,LTD. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180615 |