CN2750088Y - Pressure self-tightening type stoppage sealing device for pump - Google Patents
Pressure self-tightening type stoppage sealing device for pump Download PDFInfo
- Publication number
- CN2750088Y CN2750088Y CN 200420107528 CN200420107528U CN2750088Y CN 2750088 Y CN2750088 Y CN 2750088Y CN 200420107528 CN200420107528 CN 200420107528 CN 200420107528 U CN200420107528 U CN 200420107528U CN 2750088 Y CN2750088 Y CN 2750088Y
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- CN
- China
- Prior art keywords
- ring
- pump
- groove
- pressure self
- pressure
- 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 - Fee Related
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- Sealing Devices (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a pressure self-tightening type parking sealing device for a pump, which comprises a stationary ring fixed on a pump body and a moving ring fixed on a shaft, wherein a groove is arranged on the moving ring, one end of the stationary ring is provided with a V-shaped sealing ring, and the sealing ring is inlaid and sheathed on the upper edge of the groove of the moving ring. The utility model has the advantages that the structure is simple and the installation and the operation are convenient; the parking seal is realized by utilizing the pressure of conveying media in a pump; the sealing performance is reliable, and the service life is long.
Description
Affiliated technical field
The utility model relates to a kind of parking sealing arrangement of pump, belongs to technical field of sealing technology.
Background technique
Present known pump is made up of sealed member, separating component, elastic member etc. mostly with the parking sealing arrangement structure.During the pump running, separating component is thrown off sealing surface, and when pump shut down, elastic member fitted tightly sealing surface, realizes parking sealer.But under the corrosivity dust atmosphere, short, sealing surface of mechanical separation device and elastic device poor reliability, working life wear out failure easily under constant pressure.
Summary of the invention
In order to overcome the deficiency of existing pump with parking sealing arrangement, the utility model provides a kind of pump of long service life pressure self tightening parking sealing arrangement.This parking sealing arrangement utilizes the interior fed sheet of a media pressure of pump to realize parking sealer, and can regulate the tightness degree that sealing surface is fitted according to pressure medium, reduces wear, and increases the service life.
The technological scheme that its technical problem that solves the utility model adopts is: the utility model comprises stationary ring that is fixed on the pump housing and the rotating ring that is fixed on the axle.Wherein the material of stationary ring is wear-resisting elastomer, and an end of stationary ring has " V " V-shaped ring, and there is more than one " U " shape ring the centre of stationary ring, and a groove is arranged on the rotating ring." V " V-shaped ring edge of stationary ring is enclosed within the groove upper edge of rotating ring.During the pump running, because the effect of impeller notopodium or sub-propeller, the pressure in " V " V-shaped ring outside is in zero between the negative pressure, and " V " V-shaped ring has slight contacting with the groove upper edge of rotating ring.When pump shut down, pressure medium increased gradually in the pump, and " V " V-shaped ring is clamp-oned in the groove of rotating ring gradually, formed and the corresponding parking sealer of pressure medium.When pressure went to zero, " V " V-shaped ring sprang back to the upper edge of rotating ring groove, kept slight contact.
The utility model is simple in structure, reliable operation, energy-saving and cost-reducing, utilize fed sheet of a media pressure realization parking sealer in the pump, and can regulate the tightness degree that sealing surface is fitted according to pressure medium, reduce friction, the wearing and tearing of seal arrangement, thereby improve the reliability of seal arrangement, prolong the working life of seal arrangement.
Description of drawings
Now the utility model is described in further detail in conjunction with the accompanying drawings.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional view of stationary ring of the present utility model.
Fig. 3 is the sectional view of rotating ring of the present utility model.
Among the figure 1, axle, 2, rotating ring, 3, the pump housing, 4, stationary ring.
Embodiment
The utility model comprises rotating ring (2), stationary ring (4).Wherein rotating ring (2) is fixed on the axle (1), and stationary ring (4) is fixed on the pump housing (3).It is characterized in that: described rotating ring (2) has a groove (7), one end of described stationary ring (4) has " V " V-shaped ring (5), there is " U " shape ring (6) more than the centre, and " V " V-shaped ring (5) edge of described stationary ring (4) is enclosed within the upper edge of the groove (7) of rotating ring (2).During the pump running, because impeller notopodium or sub-propeller effect, it is zero between the negative pressure that " V " V-shaped ring (5) is located pressure P, and " V " V-shaped ring (5) has slight contacting with the upper edge of groove (7).When pump shut down, pressure medium P increased gradually in the pump, and " V " V-shaped ring (5) is clamp-oned in the groove (7) gradually, formed with pressure P to seal accordingly, and sealability is reliable and stable.When pressure P went to zero, " V " V-shaped ring sprang back to the upper edge of groove (7), kept slight contact, reduced wear, and increased the service life.
Claims (3)
1. a pump comprises rotating ring (2) and stationary ring (4) with pressure self tightening parking sealing arrangement, and wherein rotating ring (2) is fixed on the axle (1), and stationary ring (4) is fixed on the pump housing (3), it is characterized in that:
A. described rotating ring (2) has a groove (7);
One end of b. described stationary ring (4) has " V " V-shaped ring (5);
" V " V-shaped ring edge of c. described stationary ring (4) is enclosed within the upper edge of the groove (7) of rotating ring (2).
2. pump according to claim 1 is characterized in that: the centre of described stationary ring (4) one or more in addition " U " shape ring (6) with pressure self tightening parking sealing arrangement.
3. pump according to claim 2 pressure self tightening parking sealing arrangement, it is characterized in that: described stationary ring (4) is wear-resisting elastomer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107528 CN2750088Y (en) | 2004-10-29 | 2004-10-29 | Pressure self-tightening type stoppage sealing device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107528 CN2750088Y (en) | 2004-10-29 | 2004-10-29 | Pressure self-tightening type stoppage sealing device for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2750088Y true CN2750088Y (en) | 2006-01-04 |
Family
ID=35823471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420107528 Expired - Fee Related CN2750088Y (en) | 2004-10-29 | 2004-10-29 | Pressure self-tightening type stoppage sealing device for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2750088Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072191A (en) * | 2010-11-19 | 2011-05-25 | 苏州顶裕节能设备有限公司 | Sealing structure of shaft of fan |
-
2004
- 2004-10-29 CN CN 200420107528 patent/CN2750088Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072191A (en) * | 2010-11-19 | 2011-05-25 | 苏州顶裕节能设备有限公司 | Sealing structure of shaft of fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |