CN2837568Y - Improved centrifugal drain pump casing - Google Patents
Improved centrifugal drain pump casing Download PDFInfo
- Publication number
- CN2837568Y CN2837568Y CN 200520074681 CN200520074681U CN2837568Y CN 2837568 Y CN2837568 Y CN 2837568Y CN 200520074681 CN200520074681 CN 200520074681 CN 200520074681 U CN200520074681 U CN 200520074681U CN 2837568 Y CN2837568 Y CN 2837568Y
- Authority
- CN
- China
- Prior art keywords
- pump case
- water intake
- face
- pump
- drain pump
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an improved centrifugal drain pump casing, particularly centrifugal drain pump members. The improved centrifugal drain pump casing comprises a pump casing water inlet end surface which is connected with a water inlet pipe and is conical in shape. Through the improved structure of the pump casing water inlet end surface, a pump can normally work after sucking air, and noises of bang-bang of continuous backflow and re-drain can not be produced.
Description
Technical field
The utility model relates to centrifugal draining pump parts, refers in particular to the pump case of centrifugal drain pump.
Background technique
Existing centrifugal drain pump technology, the water intake end face of its pump case is generally the plane, during use, work as water inlet, the water outlet position all is higher than pump or independent water outlet position is higher than pump, when the liquid discharge will finish or wait for slow end or fix time end, the pump inlet meeting sucks air or sucks air on a small quantity, liquid in the discharge tube produces continuous backflow and discharges because of air enters the back, air can accumulate in the corner of flat end face and can't discharge, at this moment the continuous backflow and discharge noise of " banging-bang " have just been produced, along with improving constantly of technical field industry standard, this sound exceeds standard or the higher draining pump that makes of noise content can't satisfy technical requirements.
Summary of the invention
The utility model is just in order to overcome above-mentioned deficiency, a kind of improved centrifugal drain pump casing is provided, change the conical surface by pump case end face into by the plane the water inlet, can keep normal working state after making pump when work, suck air, do not produce the continuous backflow of " banging-bang ", the noise of discharging again, specifically be achieved like this: a kind of improved centrifugal drain pump casing, comprise the pump case water intake end face that connects intake pipe, it is characterized in that pump case water intake end face is tapered.The pump case water intake end face structure of this oblique plane type has suitably increased inner chamber liquid storage amount, has reduced the water intake diameter, and air can be discharged from water intake along the inclined-plane after sucking, and it is very obvious to reduce noise.
In order to guarantee the timely smooth and easy discharge of air, have groove on the inwall of pump case water intake tapered end face of the present utility model, described groove is communicated with water intake and pump case inner chamber.Groove can help the conical surface that inhaled air is discharged rapidly, avoids the bump of air and water in the pump housing, and water just can not cut off by air on impeller face, continues to keep centrifugal discharge, and the water in the discharge tube no longer produces backflow.Be arranged on that groove on the taper water intake end face inwall normally evenly lays.
Pump case water intake tapered end face of the present utility model can be to be linking body structure with pump case, also can be designed to combination according to different use occasions and piece together the knot form, be that pump case water intake tapered end face and pump case are the branch body structure, divide body structure to help other shape of exterior design with tapered end face, for example the multiple filtrating equipment of design band odontoid or a plurality of hole shapes enters rubbish or foreign matter in the pump housing in order to filtration.For entering of sealing air and prevention foreign matter, in combined and spliced slit, be embedded with soft Sealing.
The utility model passes through to improve the end-face structure of pump case water intake, and on taper water intake end face groove is set, and makes pump can keep proper functioning after sucking air, does not produce the continuous backflow of " banging-bang " and discharges noise again.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation.
Fig. 2 is a pump case water intake tapered end face schematic representation.
Fig. 3 is the utility model embodiment 2 a structural representation.
Embodiment
Claims (5)
1. an improved centrifugal drain pump casing comprises the pump case water intake end face that connects intake pipe, it is characterized in that pump case water intake end face is tapered.
2. centrifugal drain pump casing according to claim 1 is characterized in that having groove on the pump case water intake tapered end face inwall, and described groove is communicated with water intake and pump case inner chamber.
3. centrifugal drain pump casing according to claim 2 is characterized in that the groove on the pump case taper water intake end face inwall is evenly laid.
4. according to claim 1,2, one of 3 described centrifugal drain pump casings, it is characterized in that pump case water intake tapered end face and pump case are linking body structure.
5. according to claim 1,2, one of 3 described centrifugal drain pump casings, it is characterized in that pump case water intake tapered end face and pump case are the branch body structure, be embedded with soft Sealing in the combined and spliced slit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074681 CN2837568Y (en) | 2005-08-19 | 2005-08-19 | Improved centrifugal drain pump casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520074681 CN2837568Y (en) | 2005-08-19 | 2005-08-19 | Improved centrifugal drain pump casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2837568Y true CN2837568Y (en) | 2006-11-15 |
Family
ID=37392053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520074681 Expired - Lifetime CN2837568Y (en) | 2005-08-19 | 2005-08-19 | Improved centrifugal drain pump casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2837568Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560987C (en) * | 2006-06-01 | 2009-11-18 | 于国强 | Improved centrifugal drain pump casing |
| CN102852860A (en) * | 2011-12-29 | 2013-01-02 | 江苏大学 | End cover capable of reducing reflex of inlet of centrifugal pump |
| WO2014131254A1 (en) * | 2013-02-26 | 2014-09-04 | 无锡小天鹅股份有限公司 | Drainage pump and washing machine provided with drainage pump |
| CN104132002A (en) * | 2014-06-09 | 2014-11-05 | 常州孚华电器有限公司 | Water drainage pump |
-
2005
- 2005-08-19 CN CN 200520074681 patent/CN2837568Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100560987C (en) * | 2006-06-01 | 2009-11-18 | 于国强 | Improved centrifugal drain pump casing |
| CN102852860A (en) * | 2011-12-29 | 2013-01-02 | 江苏大学 | End cover capable of reducing reflex of inlet of centrifugal pump |
| WO2014131254A1 (en) * | 2013-02-26 | 2014-09-04 | 无锡小天鹅股份有限公司 | Drainage pump and washing machine provided with drainage pump |
| CN104132002A (en) * | 2014-06-09 | 2014-11-05 | 常州孚华电器有限公司 | Water drainage pump |
| CN104132002B (en) * | 2014-06-09 | 2017-05-03 | 常州孚华电器有限公司 | Water drainage pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN200999763Y (en) | Improved centrifugation water discharge pump case | |
| CN2837568Y (en) | Improved centrifugal drain pump casing | |
| EP1431516A3 (en) | Diffuser arrangement | |
| WO2007033199A3 (en) | Volute for a centrifugal compressor | |
| CN100560987C (en) | Improved centrifugal drain pump casing | |
| CN102782328B (en) | Draining pump | |
| JP2004353655A (en) | Radial impeller | |
| CN205277906U (en) | Take centrifugal impeller's domestic booster pump | |
| TW200730729A (en) | Drain pump | |
| CN101173682B (en) | Improved pump housing of centrifugal water discharging pump | |
| CN201428825Y (en) | High efficient water-saving water faucet | |
| CN208619414U (en) | A kind of pressurized centrifugan blower | |
| CN2853788Y (en) | High-efficient fluidic automatic aerotor | |
| CN207246030U (en) | Novel sanitation self priming pump | |
| CN211778030U (en) | Suction tube of self-priming pump | |
| CN1288348C (en) | Pipe double axial-flow impeller | |
| CN209414263U (en) | A kind of axial-flow pump | |
| CN209212574U (en) | One kind is for High aititude without sealing vertical self-sucking pump | |
| CN207413028U (en) | One kind is used for the molding air cleaning unit of packaging film | |
| CN2909054Y (en) | Energy-saving kitchen ventilator | |
| CN2916197Y (en) | Water/gas dual-purpose pump | |
| CN102777426A (en) | Self-cleaning type water sucking bottom valve | |
| CN2727453Y (en) | Jet type self priming centrifugal pump | |
| CN205189447U (en) | Reassembling type swimming pool drainer | |
| CN208487019U (en) | A kind of centrifugal sanitary self-sucking pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20091118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |