CN2389245Y - Cylinder shape constructional element - Google Patents
Cylinder shape constructional element Download PDFInfo
- Publication number
- CN2389245Y CN2389245Y CN 99229457 CN99229457U CN2389245Y CN 2389245 Y CN2389245 Y CN 2389245Y CN 99229457 CN99229457 CN 99229457 CN 99229457 U CN99229457 U CN 99229457U CN 2389245 Y CN2389245 Y CN 2389245Y
- Authority
- CN
- China
- Prior art keywords
- convex edge
- drum
- constructional element
- cylinder shape
- utility
- 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 Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a drum-shaped constructional element, which comprises a drum body, wherein, an inner convex edge is arranged at an opening of the drum body. The upper surface of the inner convex edge and the outer lateral surface of a drum wall form a right angle, and an annular reinforcing rib is arranged at the inner side of the joining position of the inner convex edge and the drum wall. The end surface of the drum-shaped constructional element of the utility model has the advantages of good sealing perfornance, and strong supporting intensity. The utility model can be used as an outer circular drum of a light multistage centrifugal pump.
Description
The utility model relates to a kind of tubular metal construction.Specifically, be the Cylinder shape constructional element that is used as light-duty multistage centrifugal pump outer cylinder.
As everyone knows, the outer cylinder of light-duty centrifugal pump is the metal thin-wall cylinder.During use, require its end face both to have the better seal performance, can bear bigger load again.For this reason, people are adding man-hour, and interior convex edge is processed in the end of outer cylinder, and upper and lower surface of convex edge is arc transition respectively and between the inside and outside cylndrical surface of cylindrical shell in this.Because the upper and lower surface of interior convex edge is arc transition respectively and between the inside and outside cylndrical surface of cylindrical shell, the convex edge upper surface is that the useful area of sealing surface dwindles the bad (see figure 1) of sealability in making.Improve the sealability of its end, just must increase its sealing surface.As shown in Figure 2, want to increase its sealing surface, carry out cutting with regard to internal convex edge upper surface.Like this, though can increase its sealing surface, improve its sealability, this is a cost to reduce bearing strength.Because interior convex edge sealing surface will inevitably attenuation after cutting, its bearing strength is reduced.
The purpose of this utility model is to provide a kind of Cylinder shape constructional element, the good airproof performance of this Cylinder shape constructional element end face, bearing strength height.
Cylinder shape constructional element of the present utility model comprises cylindrical shell, and the cylindrical shell oral area has interior convex edge, and its structural feature is a form right angle between the upper surface of convex edge in this and barrel outer side surface, and there is ring stiffener the inboard of interior convex edge and barrel intersection.
Because at right angles transition between convex edge upper surface and the barrel outside has increased sealing surface in the Cylinder shape constructional element of the present utility model, has improved sealability.Because there is ring stiffener the inboard of interior convex edge and barrel intersection, improved its bearing strength greatly again.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is the Cylinder shape constructional element cross-sectional schematic of using always
Fig. 2 is the Cylinder shape constructional element cross-sectional schematic of interior convex edge after processing
Fig. 3 is a Cylinder shape constructional element cross-sectional schematic of the present utility model
As shown in Figure 3, Cylinder shape constructional element of the present utility model comprises cylindrical shell 3, and cylindrical shell 3 oral areas are processed into interior convex edge 2, and at right angles transition between the upper surface of convex edge and barrel outer side surface can increase sealing surface like this in this, improves its sealability.The interior convex edge 2 of cylindrical shell 3 ends is processed with the stiffening rib 1 that goes in ring with the inboard of barrel intersection, has improved its bearing strength effectively.
Claims (1)
1, a kind of Cylinder shape constructional element comprises cylindrical shell (3), and this cylindrical shell oral area has interior convex edge (2), it is characterized in that form right angle between the upper surface of interior convex edge (2) and barrel outer side surface, and interior convex edge (2) have ring stiffener (1) with the inboard of barrel intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229457 CN2389245Y (en) | 1999-09-20 | 1999-09-20 | Cylinder shape constructional element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229457 CN2389245Y (en) | 1999-09-20 | 1999-09-20 | Cylinder shape constructional element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2389245Y true CN2389245Y (en) | 2000-07-26 |
Family
ID=34018697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229457 Expired - Fee Related CN2389245Y (en) | 1999-09-20 | 1999-09-20 | Cylinder shape constructional element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2389245Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612280A (en) * | 2017-09-22 | 2018-01-19 | 镇江颀龙科技有限公司 | A kind of magnetic coupling |
-
1999
- 1999-09-20 CN CN 99229457 patent/CN2389245Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612280A (en) * | 2017-09-22 | 2018-01-19 | 镇江颀龙科技有限公司 | A kind of magnetic coupling |
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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 |