CN110714924B - Anti-blocking device capable of automatically switching shearing and discharging according to water inlet pressure - Google Patents
Anti-blocking device capable of automatically switching shearing and discharging according to water inlet pressure Download PDFInfo
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- CN110714924B CN110714924B CN201911066321.0A CN201911066321A CN110714924B CN 110714924 B CN110714924 B CN 110714924B CN 201911066321 A CN201911066321 A CN 201911066321A CN 110714924 B CN110714924 B CN 110714924B
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- water
- water pump
- pipe
- separation net
- sewage discharge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
- F04D7/045—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous with means for comminuting, mixing stirring or otherwise treating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/24—Drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
- B02C2201/063—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage for waste water or sewage
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of water pump anti-blocking, and discloses an automatic shearing, sewage discharging and anti-blocking device according to water inlet pressure. The sundries on the separating net are flushed away through the blow-off pipe, the separating net is reset under the action of the spring, and the effects of preventing the water pump from being blocked in the process of using the water pump are achieved through the matching of the components.
Description
Technical Field
The invention relates to the technical field of water pump anti-blocking, in particular to an anti-blocking device capable of automatically switching shearing and sewage discharge according to water inlet pressure.
Background
The pump is a machine used for conveying fluid or pressurizing fluid, mechanical energy or other external energy is transmitted to the liquid, so that the energy of the liquid is increased, and the purpose of conveying or pressurizing is achieved.
The appearance of the pump brings great convenience to our life, and people can use clean water and the like without leaving home, but in the use process of the pump, people can often find some troublesome problems, namely the pump often blocks the pump body due to the fact that impurities are sucked, the effect of pumping water cannot be achieved, and the pump body is possibly damaged due to the fact that the pump body cannot operate, so that people need to spend a large amount of manpower and material resources to repair the pump body or need to replace the pump body again, and great burden is caused to the economy and the like.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the anti-blocking device for automatically switching and shearing sewage discharge according to the pressure of a water inlet, which has the advantages of preventing the water pump from being blocked, quickly cleaning a separation net, efficiently discharging sewage and the like, and solves the problem that the water pump is easily blocked and damaged.
(II) technical scheme
In order to achieve the purposes of preventing the water pump from being blocked, quickly cleaning the separation net, efficiently discharging sewage and the like, the invention provides the following technical scheme: the anti-blocking device capable of automatically switching shearing and discharging sewage according to the water inlet pressure comprises a water pump, wherein a water pump shaft is movably connected inside the water pump, water pump blades are movably connected at the bottom of the water pump shaft, a water inlet pipe is movably connected at the left side of the bottom of the water pump, a sewage discharge rail is fixedly connected below the water inlet pipe, a separation net is movably connected below the sewage discharge rail, a positioning block is fixedly connected at the right side of the separation net, a sewage discharge rotating shaft is movably connected at the bottom of the inner wall of the water pump, a control rod is movably connected inside the sewage discharge rotating shaft, a spring is sleeved outside the control rod, a water outlet pipe is movably connected at the right side of the top of the water pump, a flushing pipe is movably connected at the right side of the water outlet pipe, a sewage discharge pipe is movably connected at the right side of the bottom of the water pump, a driving wheel is movably connected below the sewage discharge rotating shaft, and a driven wheel is movably connected at the right side of the sewage discharge rotating shaft, and a cutting knife is fixedly connected to the outer side of the driven wheel.
Preferably, the front half section of the inner side of the sewage discharge rail adopts a blade design, and the rear half section adopts a movable rail design of a cutting knife, so that when sundries exist on the separation net, the separation net rotates to the position of the sewage discharge pipe, and the sundries are cut and refined.
Preferably, the flushing pipe is directly and movably connected to the right side of the water outlet pipe, and when water flows out of the water outlet pipe, part of the water can be directly shunted to clean and discharge the sewage from the separation net.
Preferably, the driving wheel and the driven wheel are connected and driven by a belt, so that the driving wheel and the driven wheel can synchronously rotate.
Preferably, the positioning block is arranged at the position of the pipe orifice of the water inlet pipe, so that the separation net is positioned at the position of the water inlet pipe during working.
Preferably, the spring is connected with the separation net through a connecting block to fix the position of the separation net during working.
Preferably, the separating net is slightly larger than the pipe orifice of the water inlet pipe, and the pipe orifice of the sewage discharge pipe is slightly larger than the separating net, so that sundries cannot enter the water pump, and the sundries cannot fall outside the sewage discharge pipe during sewage discharge.
(III) advantageous effects
Compared with the prior art, the invention provides the anti-blocking device capable of automatically switching shearing and sewage discharge according to the water inlet pressure, and the anti-blocking device has the following beneficial effects:
1. the anti-blocking device capable of automatically switching and shearing sewage drainage according to the water inlet pressure starts to work by starting a water pump, a water pump water shaft drives a water pumping fan blade to rotate, water enters the water pump from a water inlet pipe through a separation net, when large sundries reach the separation net through the water inlet pipe, the large sundries are separated outside the water pump by the separation net, the water pressure borne by the separation net is increased, a compression spring and a control rod move upwards and are inserted into a control hole in a sewage drainage rotating shaft, the separation net rotates along with the sewage drainage rotating shaft and enters a sewage drainage track, blades are uniformly distributed in the front half section of the sewage drainage track, the sundries on the separation net are cut into strips, a driving wheel is driven to rotate in the rotating process of the sewage drainage rotating shaft, the driving wheel drives a driven wheel to rotate through belt transmission, a cutting knife fixedly connected to the driven wheel moves along with the driven wheel, when the separation net rotates to the upper part of the sewage discharge pipe, sundries on the separation net are washed away through the sewage discharge pipe under the flushing action of the flushing pipe, the separation net is reset under the action of the spring, the separation net is used through the matching of the components, the effect of preventing the water pump from being blocked in the use process of the water pump is achieved, and the separation net is three, is in reciprocating circulation, and is immediately cleaned when sundries exist, so that a good cleaning effect is guaranteed.
2. According to the anti-blocking device capable of automatically switching and shearing sewage discharge according to the pressure of the water inlet, the front half section of the sewage discharge track is transversely cut, and the rear half section of the sewage discharge track is matched with the cutter to longitudinally cut sundries on the separation net, so that the purpose of processing the microminiaturization of the sundries on the separation net is achieved, the cut sundries can be discharged out of the water pump through the sewage discharge pipe and cannot be blocked, and the sewage discharge effect is guaranteed.
3. This anti-clogging device for shearing sewage discharge according to automatic switching of water inlet pressure, through the design that adopts control lever and spring, when having guaranteed to separate on the net not have debris, the control lever is inserted in the control hole that the blowdown pivot below was seted up, when having debris on separating on the net, the control lever inserts in the control hole of blowdown pivot top, after debris washs the discharge, reset under the effect of spring, thereby reached only when having debris on separating on the net, just can rotate and carry out the blowdown work on getting into the blowdown track, when not having debris, the separation net just normally works on the inlet tube.
Drawings
FIG. 1 is a schematic view of the overall structure of the water pump of the present invention;
FIG. 2 is a schematic view of the partitioning device according to the present invention;
FIG. 3 is an enlarged view of the spindle control structure of the present invention;
fig. 4 is an enlarged schematic view of the longitudinal cutting structure of the present invention.
In the figure: 1-a water pump, 2-a water pump shaft, 3-a water pump fan blade, 4-a water inlet pipe, 5-a sewage discharge rail, 6-a separation net, 7-a positioning block, 8-a control rod, 9-a spring, 10-a water outlet pipe, 11-a flushing pipe, 12-a sewage discharge pipe, 13-a sewage discharge rotating shaft, 14-a driving wheel, 15-a driven wheel and 16-a cutting knife.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-4, an anti-clogging device for automatically switching shearing and sewage disposal according to the pressure of a water inlet comprises a water pump 1, a water pump shaft 2 is movably connected inside the water pump 1, a water pump fan blade 3 is movably connected at the bottom of the water pump shaft 2, a water inlet pipe 4 is movably connected at the left side of the bottom of the water pump 1, a sewage disposal track 5 is fixedly connected below the water inlet pipe 4, the front half section of the inner side of the sewage disposal track 5 adopts a blade design, and the rear half section adopts a movable track design of a cutting knife 16, so that when impurities exist on a separation net 6, the separation net 6 rotates to a position of a sewage discharge pipe 12, the impurities are cut and refined, the impurities on the separation net 6 are transported to the upper part of the sewage discharge pipe 12, the impurities are completely refined, the impurities on the separation net 6 are discharged out of the outer side of the water pump 1 through the sewage discharge pipe 12 under the water flushing effect of a flushing pipe 11, and the separation net 6 is movably connected below the sewage disposal track 5, the separating net 6 is slightly larger than the pipe orifice of the water inlet pipe 4, the pipe orifice of the sewage discharge pipe 12 is slightly larger than the separating net 6, so that no sundries enter the water pump 1, and no sundries fall outside the sewage discharge pipe 12 during sewage discharge, a positioning block 7 is fixedly connected to the right side of the separating net 6, the positioning block 7 is arranged at the pipe orifice of the water inlet pipe 4, so that the separating net 6 is positioned at the position of the water inlet pipe 4 during work, a sewage discharge rotating shaft 13 is movably connected to the bottom of the inner wall of the water pump 1, a control rod 8 is movably connected inside the sewage discharge rotating shaft 13, a spring 9 is sleeved outside the control rod 8, the spring 9 is connected with the separating net 6 through a connecting block, the position of the separating net 6 during work is fixed, a water outlet pipe 10 is movably connected to the right side of the top of the water pump 1, a flushing pipe 11 is movably connected to the right side of the water outlet pipe 10, and the flushing pipe 11 is directly and movably connected to the right side of the water outlet pipe 10, can directly shunt out partly water and wash the blowdown to separating net 6 when outlet pipe 10 goes out water, the right side swing joint of water pump 1 bottom has blow off pipe 12, the below swing joint of blowdown pivot 13 has action wheel 14, action wheel 14 and adopt the area to connect the transmission from driving between the wheel 15, action wheel 14 and from the synchronous rotation of wheel 15 have been guaranteed, the right side swing joint of blowdown pivot 13 has from wheel 15, from the outside fixedly connected with cutting knife 16 of wheel 15, thereby guaranteed that cutting knife 16 is along with following wheel 15 and is circular motion further cuts the debris on separating net 6 together.
The working principle is as follows: the water pump 1 is started, the water pump 1 starts to work, the pump water shaft 2 drives the pump water fan blades 3 to start to rotate, water enters the water pump 1 from the water inlet pipe 4 through the separating net 6, when large sundries reach the separating net 6 through the water inlet pipe 4, the large sundries are separated outside the water pump 1 by the separating net 6, the water pressure borne by the separating net 6 is increased at the moment, the compression spring 9 and the control rod 8 move upwards and are inserted into a control hole on the sewage drainage rotating shaft 13, the separating net 6 rotates along with the sewage drainage rotating shaft 13 and enters the sewage drainage track 5, blades are uniformly distributed in the front half section of the sewage drainage track 5, the sundries on the separating net 6 are cut into strips, the driving wheel 14 is driven to rotate in the rotating process of the sewage drainage rotating shaft 13, the driving wheel 14 drives the driven wheel 15 to rotate through belt transmission, the cutting knife 16 fixedly connected to the driven wheel 15 moves along with the driven wheel, when the separation net 6 rotates to the position above the sewage discharge pipe 12, sundries on the separation net 6 are flushed away through the sewage discharge pipe 12 under the flushing action of the flushing pipe 11, the separation net 6 is reset under the action of the spring 9, and the reciprocating circulation is carried out, so that the effect of preventing the water pump 1 from being blocked is achieved.
In summary, according to the automatic switching shearing blowdown anti-blocking device according to the water inlet pressure, the water pump 1 starts to work by starting the water pump 1, the water pump shaft 2 drives the water pump fan blades 3 to start to rotate, water enters the water pump 1 from the water inlet pipe 4 through the separation net 6, when large sundries reach the separation net 6 through the water inlet pipe 4, the separated net 6 is separated outside the water pump 1, the water pressure borne by the separation net 6 is increased, the compression spring 9 and the control rod 8 move upwards and are inserted into the control hole in the blowdown rotating shaft 13, the separation net 6 rotates along with the blowdown rotating shaft 13 and enters the blowdown track 5, blades are uniformly distributed in the front half section of the blowdown track 5, the sundries on the separation net 6 are cut into strips, the driving wheel 14 is driven to rotate in the rotation process of the blowdown rotating shaft 13, the driving wheel 14 drives the driven wheel 15 to rotate through belt transmission, and the cutting knife 16 fixedly connected with the driven wheel 15 moves circularly along with the driven wheel, the sundries cut into strips on the separating net 6 are cut up again, when the separating net 6 rotates to the position above the sewage discharge pipe 12, the sundries on the separating net 6 are washed away through the sewage discharge pipe 12 under the flushing action of the flushing pipe 11, the separating net 6 is reset under the action of the spring 9, and through the matching use of the components, the effect of preventing the water pump 1 from being blocked in the use process of the water pump 1 is achieved, and due to the fact that the three separating nets 6 are arranged, the cleaning is carried out at once when the sundries exist, and a good cleaning effect is guaranteed.
According to the anti-blocking device capable of automatically switching and shearing sewage drainage according to the pressure of the water inlet, the front half section of the sewage drainage track 5 is transversely cut, and the rear half section of the sewage drainage track is matched with the cutting knife 16 to longitudinally cut sundries on the separating net 6, so that the purpose of processing the microminiaturization of the sundries on the separating net 6 is achieved, the cut sundries can be discharged out of the water pump 1 through the sewage drainage pipe 12 and cannot be blocked, and the sewage drainage effect is guaranteed.
This anti-clogging device for cutting sewage drainage according to automatic switching of water inlet pressure, through the design that adopts control lever 8 and spring 9, when having guaranteed that there is not debris on the spacer screen 6, control lever 8 is inserted in the control hole that the blowdown pivot 13 below was seted up, when having debris on spacer screen 6, control lever 8 inserts in the control hole of blowdown pivot 13 top, after debris wash the discharge, reset under the effect of spring 9, thereby reached only when having debris on spacer screen 6, just can rotate and get into and carry out the blowdown work on the blowdown track 5, when there is not debris, spacer screen 6 just normally works on inlet tube 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a shearing blowdown anti-clogging device according to water inlet pressure automatic switch-over, includes water pump (1), its characterized in that: the water pump is characterized in that a pump water shaft (2) is movably connected inside the water pump (1), a pump water fan blade (3) is movably connected at the bottom of the pump water shaft (2), a water inlet pipe (4) is movably connected at the left side of the bottom of the water pump (1), a sewage discharge track (5) is fixedly connected below the water inlet pipe (4), a separation net (6) is movably connected below the sewage discharge track (5), a positioning block (7) is fixedly connected at the right side of the separation net (6), a sewage discharge rotating shaft (13) is movably connected at the bottom of the inner wall of the water pump (1), a control rod (8) is movably connected inside the sewage discharge rotating shaft (13), a spring (9) is sleeved outside the control rod (8), a water outlet pipe (10) is movably connected at the right side of the top of the water pump (1), and a flushing pipe (11) is movably connected at the right side of the water outlet pipe (10), a sewage discharge pipe (12) is movably connected to the right side of the bottom of the water pump (1), a driving wheel (14) is movably connected to the lower portion of the sewage discharge rotating shaft (13), a driven wheel (15) is movably connected to the right side of the sewage discharge rotating shaft (13), and a cutting knife (16) is fixedly connected to the outer side of the driven wheel (15);
the front half section of the inner side of the sewage discharge rail (5) is designed by adopting a blade, and the rear half section of the inner side of the sewage discharge rail is designed by adopting a movable rail of a cutting knife (16);
the flushing pipe (11) is directly and movably connected to the right side of the water outlet pipe (10);
the driving wheel (14) and the driven wheel (15) are connected and driven by a belt;
the positioning block (7) is arranged at the position of the pipe orifice of the water inlet pipe (4);
the spring (9) is connected with the separation net (6) through a connecting block;
by starting the water pump (1), the water pump shaft (2) drives the water pump fan blades (3) to start rotating, water enters the water pump (1) from the water inlet pipe (4) through the separation net (6), when large sundries reach the separation net (6) through the water inlet pipe (4), the separated water is separated outside the water pump (1) by the separation net (6), the water pressure borne by the separation net (6) is increased at the moment, the compression spring (9) and the control rod (8) move upwards and are inserted into the control hole on the pollution discharge rotating shaft (13), the separation net (6) rotates along with the pollution discharge rotating shaft (13) and enters the pollution discharge track (5), blades are uniformly distributed in the front half section of the pollution discharge track (5) to cut sundries on the separation net (6) into strips, the driving wheel (14) is driven to rotate in the rotating process of the pollution discharge rotating shaft (13), and the driving wheel (14) drives the driven wheel (15) to rotate through belt transmission, a cutting knife (16) fixedly connected with the driven wheel (15) moves circularly along with the driven wheel to cut up sundries cut into strips on the separation net (6) again, when the separation net (6) rotates to the position above the sewage discharge pipe (12), the sundries on the separation net (6) are washed away through the sewage discharge pipe (12) under the flushing action of the flushing pipe (11), and the separation net (6) is reset under the action of the spring (9).
2. The apparatus as claimed in claim 1, wherein the apparatus comprises: the separating net (6) is larger than the pipe orifice of the water inlet pipe (4), and the pipe orifice of the sewage discharge pipe (12) is larger than the separating net (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911066321.0A CN110714924B (en) | 2019-11-04 | 2019-11-04 | Anti-blocking device capable of automatically switching shearing and discharging according to water inlet pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911066321.0A CN110714924B (en) | 2019-11-04 | 2019-11-04 | Anti-blocking device capable of automatically switching shearing and discharging according to water inlet pressure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110714924A CN110714924A (en) | 2020-01-21 |
| CN110714924B true CN110714924B (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911066321.0A Active CN110714924B (en) | 2019-11-04 | 2019-11-04 | Anti-blocking device capable of automatically switching shearing and discharging according to water inlet pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110714924B (en) |
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| CN109026756A (en) * | 2018-09-19 | 2018-12-18 | 时飞龙 | A kind of proof submersible sand discharging pump with balance mechanism |
| CN109026730A (en) * | 2018-09-19 | 2018-12-18 | 时飞龙 | A kind of proof submersible sand discharging pump for papermaking sewage processing |
| CN208950895U (en) * | 2018-08-22 | 2019-06-07 | 天津市明奥泵业有限公司 | A kind of cutting type is removed contamination integrated immersible pump |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3027909A4 (en) * | 2013-08-01 | 2017-05-03 | Bjm Pumps Llc | Shred and shear pump |
| CN204942064U (en) * | 2015-09-08 | 2016-01-06 | 天津盛基新业泵业有限公司 | A kind of cutting type submersible axial flow pump |
| CN105521635A (en) * | 2016-02-25 | 2016-04-27 | 苏州单科机电有限公司 | Water filter with rotatable filter screens |
| CN108273315A (en) * | 2017-01-05 | 2018-07-13 | 孙富军 | Self-cleaning disc type sewage anti-blockage machine |
| CN108579185A (en) * | 2018-04-27 | 2018-09-28 | 广东知识城运营服务有限公司 | A kind of sewage water filtration valve |
| CN108553992A (en) * | 2018-05-16 | 2018-09-21 | 吴金阳 | A kind of water treatment filter of automatic cleaning impurity |
| CN208950895U (en) * | 2018-08-22 | 2019-06-07 | 天津市明奥泵业有限公司 | A kind of cutting type is removed contamination integrated immersible pump |
| CN109026756A (en) * | 2018-09-19 | 2018-12-18 | 时飞龙 | A kind of proof submersible sand discharging pump with balance mechanism |
| CN109026730A (en) * | 2018-09-19 | 2018-12-18 | 时飞龙 | A kind of proof submersible sand discharging pump for papermaking sewage processing |
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| Publication number | Publication date |
|---|---|
| CN110714924A (en) | 2020-01-21 |
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