CN112727778A - Submersible pump with sludge discharge type water suction port - Google Patents
Submersible pump with sludge discharge type water suction port Download PDFInfo
- Publication number
- CN112727778A CN112727778A CN202011490813.5A CN202011490813A CN112727778A CN 112727778 A CN112727778 A CN 112727778A CN 202011490813 A CN202011490813 A CN 202011490813A CN 112727778 A CN112727778 A CN 112727778A
- Authority
- CN
- China
- Prior art keywords
- sludge discharge
- discharge pipeline
- sludge
- water
- submersible
- 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.)
- Granted
Links
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- 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
Abstract
The invention relates to a submersible pump with a sludge discharge type water suction port, which comprises a submersible motor and a water pump shell, the submersible motor is arranged in the water pump shell and comprises a driving shaft, the part of the driving shaft, which is positioned in the water pump shell, is connected with a plurality of driving impellers, the lower end of the water pump shell is connected with a water inlet pipe, the upper end of the water pump shell is provided with a water outlet pipe, the lower end of the water inlet pipe is connected with a sludge discharge pipeline in a T shape, both ends of the sludge discharge pipeline are provided with through holes, one end of the linear driving motor is provided with a stop block and a linear driving motor, the linear driving motor is fixedly connected on the stop block, the linear moving shaft of the linear driving motor is provided with the push block, and the push block is arranged in the sludge discharge pipeline, and the linear driving motor pushes the push block to move along the length direction of the sludge discharge pipeline. The embodiment of the invention can discharge the sludge from the water suction port and reduce the sludge entering the submersible pump.
Description
Technical Field
The invention relates to the technical field of sewage treatment pumps, in particular to a submersible pump with a sludge discharge type water suction port.
Background
With the rapid development of economy, a plurality of industries are more and more dominant, wherein the breeding industry is one of the most important industries in the society at present, a large amount of sewage needs to be treated in the breeding process, and an excellent water pump is particularly important. Centrifugal pumps operate by causing water to move centrifugally as a result of the rotation of an impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell. The basic structure of the pump consists of six parts, namely an impeller, a pump body, a pump shaft, a bearing, a sealing ring and a stuffing box. The impeller is the core part of the centrifugal pump, the rotating speed of the impeller is higher than the output force, the blades on the impeller play a main role, and the impeller passes through a static balance experiment before assembly. The inner and outer surfaces on the impeller need to be smooth to reduce frictional losses from the water flow. The pump shaft is connected with the motor through a coupling to transmit the torque of the motor to the impeller, so that the pump shaft is a main component for transmitting mechanical energy.
The existing submersible pump sucks all sludge into the submersible pump during working, so that the sludge cannot be discharged in time, and the submersible pump is easy to damage.
Disclosure of Invention
The embodiment of the invention provides a submersible pump with a sludge discharge type water suction port, which aims to solve part of problems in the background technology.
The embodiment of the invention provides a submersible pump with a sludge discharge type water suction port, which comprises a submersible motor and a water pump shell, wherein the submersible motor is arranged in the water pump shell, the submersible motor comprises a driving shaft, the part of the driving shaft, which is positioned in the water pump shell, is connected with a plurality of driving impellers, the lower end of the water pump shell is connected with a water inlet pipe, the upper end of the water pump shell is provided with a water outlet pipe, the lower end of the water inlet pipe is T-shaped and connected with a sludge discharge pipeline, two ends of the sludge discharge pipeline are provided with through holes, one end of the sludge discharge pipeline is provided with a stop block and a linear driving motor, the linear driving motor is fixedly connected on the stop block, a linear moving shaft of the linear driving motor is provided with a push block, the push block is arranged in the sludge discharge pipeline, the linear driving motor pushes the push block to move along, and the push block is provided with a water delivery hole along the length direction of the sludge discharge pipeline, the other end of the sludge discharge pipeline is provided with an end cover, the end cover is connected with the end part of the sludge discharge pipeline through a pivot shaft, and the linear driving motor drives the push block to move to the end cover from a through hole at one end and move to the outer side of the sludge discharge pipeline, which is positioned at the end cover.
Further, the submersible motor is arranged vertically.
Further, the submersible motor is connected with the inner wall of the water pump shell through a connecting rod.
Further, the sludge discharge pipeline is horizontally arranged.
Furthermore, one end of the sludge discharge pipeline, which is close to the linear driving motor, is provided with a bending limiting plate, and the bending limiting plate is fixedly connected to a through hole at the end part of the sludge discharge pipeline.
Furthermore, the upper end of the water outlet pipe is connected with a check valve.
Furthermore, the T-shaped connecting part of the water inlet pipe and the sludge discharge pipeline is provided with a groove, the inner cover of the groove is provided with a sludge blocking cover, and the sludge blocking cover protrudes into the sludge discharge pipeline.
Further, the ejector pad includes ejector pad body and sponge piece, the ejector pad body with the sponge piece is connected, linear drive motor with this body coupling of ejector pad, the sponge piece in the removal with the setting is dodged to the mud blocking cover.
Further, the aperture of the water inlet pipe is not smaller than that of the water outlet pipe.
Furthermore, a fixing ring is arranged outside the water pump shell.
The advantages of the invention are as follows: firstly, the lower end of the water inlet pipe is provided with the sludge blocking cover, so that sludge can be reduced from entering the shell of the water pump through the water inlet pipe after penetrating through the sludge blocking cover, and further the influence of the sludge on the normal operation of the submersible pump due to the blockage of the submersible pump is avoided. Secondly, in the embodiment of the invention, the water delivery hole is arranged in the push block in the sludge discharge pipeline, sewage can smoothly enter the shell of the water pump through the water delivery hole, sludge is accumulated in the sludge discharge pipeline due to the blockage of the sludge blocking cover, and the sludge accumulated in the sludge discharge pipeline can be pushed out of the sludge discharge pipeline by utilizing the timing opening of the linear driving motor, so that the problem of sludge discharge is solved. Finally, the aperture of the water conveying hole limits that large dirt cannot enter the sludge discharge pipeline, and therefore the large dirt cannot enter the water pump shell.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view showing the structure of a submersible pump according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a push block in an embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a structure at a in fig. 1.
In the figure: the device comprises a submersible motor 1, a water pump shell 2, a driving shaft 3, a driving impeller 4, a water inlet pipe 5, a water outlet pipe 6, a sludge discharge pipeline 7, a stop block 8, a linear driving motor 9, a push block 10, an end cover 11, a pivot shaft 12, a connecting rod 13, a bending limiting plate 14, a check valve 15, a groove 16, a sludge blocking cover 17, a push block body 18, a sponge block 19, a fixing ring 20 and a water delivery hole 21.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following detailed description of the embodiments and the accompanying drawings are provided to illustrate the principles of the invention and are not intended to limit the scope of the invention, i.e., the invention is not limited to the embodiments described, but covers any modifications, alterations, and improvements in the parts, components, and connections without departing from the spirit of the invention.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present application will be described in detail with reference to the accompanying drawings 1 to 3 in conjunction with an embodiment.
The submersible pump with the sludge discharge type water suction port comprises a submersible motor 1 and a water pump shell 2, wherein the submersible motor 1 is arranged in the water pump shell 2, the submersible motor 1 comprises a driving shaft 3, a part, positioned in the water pump shell 2, of the driving shaft 3 is connected with a plurality of driving impellers 4, the lower end of the water pump shell 2 is connected with a water inlet pipe 5, the upper end of the water pump shell 2 is provided with a water outlet pipe 6, the lower end of the water inlet pipe 5 is connected with a sludge discharge pipeline 7 in a T-shaped manner, two ends of the sludge discharge pipeline 7 are provided with through holes, one end of the sludge discharge pipeline is provided with a stop block 8 and a linear driving motor 9, the linear driving motor 9 is fixedly connected onto the stop block 8, a linear moving shaft of the linear driving motor 9 is provided with a push block 10, and the push block 10 is arranged in the sludge discharge, the linear driving motor 9 pushes the push block 10 to move along the length direction of the sludge discharge pipeline 7, a water delivery hole 11 is formed in the push block 10 along the length direction of the sludge discharge pipeline 7, an end cover 11 is arranged at the other end of the sludge discharge pipeline 7, the end cover 11 is connected with the end portion of the sludge discharge pipeline 7 through a pivot shaft 12, and the linear driving motor 9 drives the push block 10 to move to the end cover 11 from a through hole at one end and move to the position, outside the end cover 11, of the sludge discharge pipeline 7.
Specifically, the submersible motor 1 is vertically arranged, the submersible motor 1 is connected with the inner wall of the water pump shell 2 through a connecting rod 13, the sludge discharge pipeline 7 is horizontally arranged, one end of the sludge discharge pipeline 7, which is close to the linear driving motor 9, is provided with a bending limiting plate 14, the bending limiting plate 14 is fixedly connected with a through hole at the end part of the sludge discharge pipeline 7, the upper end of the water outlet pipe 6 is connected with a check valve 15, a T-shaped connecting part of the water inlet pipe 5 and the sludge discharge pipeline 7 is provided with a groove 16, an inner cover of the groove 16 is provided with a mud blocking cover 17, the mud blocking cover 17 protrudes towards the inside of the sludge discharge pipeline 7, the push block 10 comprises a push block body 18 and a sponge block 19, the push block body 18 is connected with the sponge block 19, the linear driving motor 9 is connected with the push block body 18, and the sponge block 19 is arranged in a avoiding way with the mud blocking cover 17 in, the aperture of inlet tube 5 is not less than the aperture of outlet pipe 6, still be equipped with solid fixed ring 20 outside water pump housing 2.
The working principle is as follows: in the embodiment of the invention, the sludge blocking cover 17 is arranged at the lower end of the water inlet pipe 5, so that the sludge can be reduced from entering the water pump shell 2 from the water inlet pipe 5 after penetrating through the sludge blocking cover 17, and the influence of the sludge on the normal operation of the submersible pump due to blockage of the submersible pump is avoided.
Secondly, in the embodiment of the invention, the lower end of the water inlet pipe 5 is provided with the sludge discharge pipeline 7, when the submersible pump works normally, the submersible motor 1 generates suction force to suck sewage from the outside of the sludge discharge pipeline 7 into the water pump shell 2 through the water inlet pipe 5 and the sludge discharge pipeline 7 and then discharge the sewage through the water outlet pipe 6, while in the embodiment of the invention, the push block 10 arranged in the sludge discharge pipeline 7 is internally provided with the water delivery hole 21, the sewage can enter the water pump shell 2 smoothly through the water delivery hole 21, the sludge is accumulated in the sludge discharge pipeline 7 due to the blockage of the sludge blocking cover 17, when the submersible pump works for a period of time, the linear driving motor 9 can be started, the linear driving motor 9 drives the push block 10 to push the sludge accumulated in the sludge discharge pipeline 7 out of the sludge discharge pipeline 7, namely out of one side of the end cover 11, and the end cover 11 is connected with the other end of the sludge discharge pipeline, when the submersible motor 1 works, suction force is generated to cause the end cover 11 to be tightly attached to the end part of the sludge discharge pipeline 7, large sludge cannot enter from the side, and therefore large dirt can only enter from the side, close to the push block 10, of the sludge discharge pipeline 7.
Finally, the pushing block 10 is provided with a water delivery hole 21, the diameter of the water delivery hole 21 limits that large dirt cannot enter the sludge discharge pipeline 7, and therefore the large dirt cannot enter the water pump shell 2.
In summary, in the embodiment of the present invention, the sludge blocking cover 17 is disposed at the lower end of the water inlet pipe 5, so that the sludge entering the water pump housing 2 from the water inlet pipe 5 after penetrating through the sludge blocking cover 17 can be reduced, and the influence of the sludge blocking the submersible pump on the normal operation of the submersible pump can be avoided. Secondly, in the embodiment of the invention, the water delivery hole 21 is arranged in the push block 10 in the sludge discharge pipeline 7, sewage can enter the water pump shell 2 through the water delivery hole 21 without hindrance, and sludge is accumulated in the sludge discharge pipeline 7 due to the blockage of the sludge blocking cover 17, and the sludge accumulated in the sludge discharge pipeline 7 can be pushed out from the sludge discharge pipeline 7 by utilizing the timing opening of the linear driving motor 9, so that the problem of sludge discharge is solved. Finally, the aperture of the water delivery hole 21 limits large dirt from entering the sludge discharge pipe 7, thereby ensuring that the large dirt does not enter the water pump housing 2.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For embodiments of the method, reference is made to the description of the apparatus embodiments in part. The present invention is not limited to the specific steps and structures described above and shown in the drawings. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
The above description is only an example of the present application and is not limited to the present application. Various modifications and alterations to this application will become apparent to those skilled in the art without departing from the scope of this invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The submersible pump with the sludge discharge type water suction port is characterized by comprising a submersible motor (1) and a water pump shell (2), wherein the submersible motor (1) is arranged in the water pump shell (2), the submersible motor (1) comprises a driving shaft (3), the part of the driving shaft (3) positioned in the water pump shell (2) is connected with a plurality of driving impellers (4), the lower end of the water pump shell (2) is connected with a water inlet pipe (5), the upper end of the water pump shell (2) is provided with a water outlet pipe (6), the lower end of the water inlet pipe (5) is connected with a sludge discharge pipeline (7) in a T shape, two ends of the sludge discharge pipeline (7) are through holes, one end of the sludge discharge pipeline is provided with a stop block (8) and a linear driving motor (9), the linear driving motor (9) is fixedly connected on the stop block (8), and a linear moving shaft of the linear driving motor (9) is provided with a push, and the push block (10) is arranged in the sludge discharge pipeline (7), the linear driving motor (9) pushes the push block (10) to move along the length direction of the sludge discharge pipeline (7), the push block (10) is provided with a water delivery hole (21) along the length direction of the sludge discharge pipeline (7), the other end of the sludge discharge pipeline (7) is provided with an end cover (11), the end cover (11) is connected with the end part of the sludge discharge pipeline (7) through a pivot shaft (12), and the linear driving motor (9) drives the push block (10) to move from a through hole at one end to the end cover (11) and move to the sludge discharge pipeline (7) which is positioned at the outer side of the end cover (11).
2. The submersible pump with sludge discharge type water intake according to claim 1, wherein the submersible motor (1) is vertically disposed.
3. The submersible pump with a sludge discharge type water intake according to claim 2, wherein the submersible motor (1) is connected with the inner wall of the water pump housing (2) through a connecting rod (13).
4. The submersible pump with sludge discharge type water intake according to claim 1, wherein the sludge discharge pipe (7) is horizontally disposed.
5. The submersible pump with the sludge discharge type water suction port according to claim 1, wherein one end of the sludge discharge pipeline (7) close to the linear driving motor (9) is provided with a bending limiting plate (14), and the bending limiting plate (14) is fixedly connected to a through hole at the end part of the sludge discharge pipeline (7).
6. The submersible pump with a sludge discharge type water suction port according to claim 1, wherein a check valve (15) is connected to an upper end of the water outlet pipe (6).
7. The submersible pump with the sludge discharge type water suction port according to claim 1, wherein a T-shaped connection part of the water inlet pipe (5) and the sludge discharge pipeline (7) is provided with a groove (16), an inner cover of the groove (16) is provided with a sludge blocking cover (17), and the sludge blocking cover (17) protrudes towards the inside of the sludge discharge pipeline (7).
8. The submersible pump with the sludge discharge type water suction port according to claim 7, wherein the push block (10) comprises a push block body (18) and a sponge block (19), the push block body (18) is connected with the sponge block (19), the linear driving motor (9) is connected with the push block body (18), and the sponge block (19) is arranged in a way of avoiding the sludge blocking cover (17) in the moving process.
9. The submersible pump with a sludge discharge type water suction port according to claim 1, wherein the aperture of the water inlet pipe (5) is not smaller than the aperture of the water outlet pipe (6).
10. The submersible pump with a sludge discharge type water suction port according to claim 1, wherein a fixing ring (20) is further provided outside the water pump housing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490813.5A CN112727778B (en) | 2020-12-17 | 2020-12-17 | Submersible pump with sludge discharge type water suction port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011490813.5A CN112727778B (en) | 2020-12-17 | 2020-12-17 | Submersible pump with sludge discharge type water suction port |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112727778A true CN112727778A (en) | 2021-04-30 |
| CN112727778B CN112727778B (en) | 2023-02-28 |
Family
ID=75603912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011490813.5A Active CN112727778B (en) | 2020-12-17 | 2020-12-17 | Submersible pump with sludge discharge type water suction port |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112727778B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007056751A (en) * | 2005-08-24 | 2007-03-08 | Mk:Kk | Sludge suction cover for submerged pump |
| CN207454287U (en) * | 2017-09-30 | 2018-06-05 | 浙江固达泵业有限公司 | Sewage/waste electrical submersible pump |
| CN208348108U (en) * | 2018-06-26 | 2019-01-08 | 文澜（天津）科技有限公司 | A kind of portable pumping equipment of sewage treatment |
| CN208763998U (en) * | 2018-08-09 | 2019-04-19 | 海宁马桥大都市热电有限公司 | A kind of water pump |
| CN110512714A (en) * | 2019-09-27 | 2019-11-29 | 江苏省水利工程科技咨询股份有限公司 | A kind of anti-siltation integrated pump station of intelligence and its application method |
| CN211009150U (en) * | 2019-08-27 | 2020-07-14 | 天津双河泵业有限公司 | Pipeline engineering is with stealthily dirty pump of preventing foreign matter jam |
| CN211288109U (en) * | 2019-12-28 | 2020-08-18 | 内蒙古城市规划市政设计研究院有限公司 | Pneumatic self-priming pump for domestic garbage treatment |
-
2020
- 2020-12-17 CN CN202011490813.5A patent/CN112727778B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007056751A (en) * | 2005-08-24 | 2007-03-08 | Mk:Kk | Sludge suction cover for submerged pump |
| CN207454287U (en) * | 2017-09-30 | 2018-06-05 | 浙江固达泵业有限公司 | Sewage/waste electrical submersible pump |
| CN208348108U (en) * | 2018-06-26 | 2019-01-08 | 文澜（天津）科技有限公司 | A kind of portable pumping equipment of sewage treatment |
| CN208763998U (en) * | 2018-08-09 | 2019-04-19 | 海宁马桥大都市热电有限公司 | A kind of water pump |
| CN211009150U (en) * | 2019-08-27 | 2020-07-14 | 天津双河泵业有限公司 | Pipeline engineering is with stealthily dirty pump of preventing foreign matter jam |
| CN110512714A (en) * | 2019-09-27 | 2019-11-29 | 江苏省水利工程科技咨询股份有限公司 | A kind of anti-siltation integrated pump station of intelligence and its application method |
| CN211288109U (en) * | 2019-12-28 | 2020-08-18 | 内蒙古城市规划市政设计研究院有限公司 | Pneumatic self-priming pump for domestic garbage treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112727778B (en) | 2023-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070086906A1 (en) | Surface pump assembly | |
| US5102297A (en) | Centrifugal pump with cavitation reducing propeller | |
| CN112727778B (en) | Submersible pump with sludge discharge type water suction port | |
| CN210371183U (en) | Double-suction volute core-pulling type long-shaft pump | |
| KR100320288B1 (en) | Mainstream Pump | |
| CN207598499U (en) | A kind of gearbox vane pump system | |
| KR101898504B1 (en) | Spurt pump having double suction type impeller | |
| CN112594195A (en) | Sewage treatment pump | |
| CN216867029U (en) | Water pump with brushless motor | |
| CN219452413U (en) | Centrifugal pump with high stability | |
| CN216008925U (en) | Water pump device for separating conveying power of vacuumized water diversion and water pump | |
| CN213899396U (en) | Impeller device with impurity diving tower | |
| CN212389537U (en) | Automobile water pump assembly | |
| CN117108497B (en) | Quick-connection screw pump | |
| CN216950985U (en) | Volute casing | |
| CN218467848U (en) | Spiral centrifugal impeller long shaft pump | |
| CN219754816U (en) | Single-stage high-lift centrifugal water pump | |
| CN216923116U (en) | Gearbox housing and gearbox | |
| CN217380907U (en) | High-stability isolated electric water pump | |
| CN217462574U (en) | Liquid storage type self-suction centrifugal pump | |
| CN219432069U (en) | Stacked pump set | |
| CN213540826U (en) | High-efficient type rotary jet pump | |
| CN210660742U (en) | Water pump case convenient to overhaul | |
| CN114962274A (en) | Self-priming centrifugal pump | |
| CN205956010U (en) | There is not magnetic force actuation self priming pump that leaks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |