CN202144775U - Improved structure for vacuum pump - Google Patents
Improved structure for vacuum pump Download PDFInfo
- Publication number
- CN202144775U CN202144775U CN201120207009U CN201120207009U CN202144775U CN 202144775 U CN202144775 U CN 202144775U CN 201120207009 U CN201120207009 U CN 201120207009U CN 201120207009 U CN201120207009 U CN 201120207009U CN 202144775 U CN202144775 U CN 202144775U
- Authority
- CN
- China
- Prior art keywords
- vacuum pump
- improved structure
- end socket
- annular groove
- improvement structure
- 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
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- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model relates to an improved structure for a vacuum pump, belonging to the sealing field of vacuum pumps. The improved structure for a vacuum pump is characterized in that, two ends of a pump body are respectively provided with an end socket, the sealing surface of the end socket is provided with an annular groove, and the internal of the annular groove is provided with an O shaped sealing ring. The improved structure is advantaged by great improvement of sealing property of vacuum pump, convenient maintenance, low cost of maintenance, and prolonging of service lifetime of vacuum pump.
Description
Technical field
The utility model relates to a kind of improvement structure of vacuum pump, belongs to the vacuum pump field of sealing technology.
Background technique
Vacuum pump is widely used in technical fields such as plastics machinery, pesticide chemical, dye chemical industry, papermaking equipment, medication chemistry, food machinery, industrial furnace, electron trade, vacuum equipment, chemical fertilizer, metallurgy, oil, mine.Existing vacuum pump structure is that end socket utilizes the bolt and the pump housing to fix at the two ends of pump housing assembling end socket.Leakage phenomenon often takes place owing to sealing descends in this vacuum pump when long-term the use, and maintenance is difficult, especially has the vacuum pump that uses in the working environment of corrosive gas at some, like the vacuum pump that uses in the PTA device, more is prone to this situation.For this reason, we provide a kind of improvement structure of vacuum pump, and this improvement structure has strengthened the sealability of vacuum pump greatly, and maintains easily, and maintenance cost is low, prolong the working life of vacuum pump.
Summary of the invention
In view of the defective that prior art exists, the purpose of the utility model provides a kind of improvement structure of vacuum pump, and this improvement structure has strengthened the sealability of vacuum pump greatly, and maintains easily, and maintenance cost is low, prolongs the working life of vacuum pump.
The utility model solves the technological scheme that its technical problem adopted: a kind of improvement structure of vacuum pump, be equipped with end socket at the two ends of the pump housing, and on the sealing surface of end socket, be provided with annular groove, the O RunddichtringO is housed in the described annular groove.
The beneficial effect of the utility model is: a kind of improvement structure of vacuum pump, be equipped with end socket at the two ends of the pump housing, and on the sealing surface of end socket, be provided with annular groove, the O RunddichtringO is housed in the described annular groove.This improvement structure has strengthened the sealability of vacuum pump greatly, and maintains easily, and maintenance cost is low, prolongs the working life of vacuum pump.
Description of drawings
Fig. 1 is a kind of schematic representation of improvement structure of vacuum pump;
Fig. 2 is the sectional drawing at A-A place among Fig. 1;
Reference character is following: 1, end socket, 2, the pump housing, 3, annular groove, 4, seal ring.
Embodiment
Fig. 1 is a kind of schematic representation of improvement structure of vacuum pump, is equipped with end socket 1 at the two ends of the pump housing 2, on the sealing surface of end socket 1, is provided with annular groove 3.
Fig. 2 is the sectional drawing at A-A place among Fig. 1, in described annular groove 3, O RunddichtringO 4 is housed.
Claims (1)
1. the improvement structure of a vacuum pump is equipped with end socket (1) at the two ends of the pump housing (2), it is characterized in that: on the sealing surface of end socket (1), be provided with annular groove (3), O RunddichtringO (4) is housed in the described annular groove (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207009U CN202144775U (en) | 2011-06-20 | 2011-06-20 | Improved structure for vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207009U CN202144775U (en) | 2011-06-20 | 2011-06-20 | Improved structure for vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202144775U true CN202144775U (en) | 2012-02-15 |
Family
ID=45580706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120207009U Expired - Lifetime CN202144775U (en) | 2011-06-20 | 2011-06-20 | Improved structure for vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202144775U (en) |
-
2011
- 2011-06-20 CN CN201120207009U patent/CN202144775U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120215 |
|
| CX01 | Expiry of patent term |