CN201891609U - Improved structure of vacuum pump exhaust device - Google Patents
Improved structure of vacuum pump exhaust device Download PDFInfo
- Publication number
- CN201891609U CN201891609U CN2010205706333U CN201020570633U CN201891609U CN 201891609 U CN201891609 U CN 201891609U CN 2010205706333 U CN2010205706333 U CN 2010205706333U CN 201020570633 U CN201020570633 U CN 201020570633U CN 201891609 U CN201891609 U CN 201891609U
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- Prior art keywords
- oil
- vacuum pump
- gas
- stator
- exhaust
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Abstract
The utility model discloses an improved structure of a vacuum pump exhaust device, which comprises a stator, an exhaust valve and an oil-gas separating plate. A circular closed counter bore is arranged at the top of a gas outlet of the stator; the gas outlet is positioned at the bottom of the counter bore; and the exhaust valve and the oil-gas separating plate are arranged on the gas outlet. Compared with the prior art, the improved structure enables valve head seal, oil seal and oil-gas separation to function simultaneously, and has the advantages of simple structure, fine sealing effect and high practicability.
Description
Affiliated technical field
The utility model relates to a kind of vacuum pump, particularly a kind of improvement structure of vacuum pump venting gas appliance.
Background technique
At present, the working principle of vacuum pump is from intakeport inspiration gas, and discharges gas from relief opening, thereby obtains certain degree of vacuum, venting gas appliance is arranged on a leakproof one-way valve of relief opening, and its sealability has very big influence to the degree of vacuum quality that obtains.The outlet valve of existing vacuum pump comprises exhaust valve plate and banking stop, and both are set together in stack, and the one end is arranged on the air outlet platform of pump stator by bolt.The other end blocks the air outlet and forms an one-way valve, and during exhaust, the pressurized gas of stator interior back down valve block and realize exhaust, utilizes the opening angle of the angle of inclination control exhaust valve plate of banking stop.Utilize the elastic-restoring force of exhaust valve plate to make exhaust valve plate block air outlet realization sealing again during end, its sealing mainly is to lean on the applying of exhaust valve plate and air outlet platform to realize, the oil of taking out of during exhaust also plays a part certain in addition, but existing air outlet hole platform is a plane, this makes the oil of taking out of be difficult to maintain, cause effect that oil sealing plays seldom, and vacuum pump is after long-time the use, the elastic-restoring force of exhaust valve plate can lose efficacy, also can be blocked between the faying surface of exhaust valve plate and platform simultaneously by greasy dirt, thereby cause seal failure, the workmanship that causes really deciding pump descends, and degree of vacuum reduces.
Summary of the invention
The purpose of this utility model is to provide a kind of improvement structure of vacuum pump venting gas appliance.It is in conjunction with exhaust plug and oil sealing dual mode.Add the oil gas separation function again.It has characteristics simple in structure, good sealing effect.
The utility model is by the following technical solutions: a kind of improvement structure of vacuum pump venting gas appliance, comprise a stator and outlet valve and oil-gas separating plate, the top vent ports that it is characterized in that described stator is provided with a round sealed counterbore, the air outlet is positioned at the counterbore bottom, and an outlet valve and oil-gas separating plate are set on it.Above-mentioned outlet valve comprises the following part that stack is set together: exhaust plug places in the counterbore, and exhaust valve spring places between exhaust plug and the spring seat.Spring seat is fixed on the top of stator, oil-gas separating plate is fixed on the spring seat top. during use, counterbore on the air outlet, stator top forms a blind hole, this makes the oil of taking out of with pressurized gas remain at formation one oil reservoir in the counterbore, its spool in conjunction with outlet valve is realized double seal, high pressure air is backed down spool and oil reservoir under the spring and is discharged (spool Lift by spring seat on the cylinder height of fixing spring and guiding determine) outward when exhaust, utilizes the restoring force of exhaust spring to make spool block the air outlet again during end and realizes sealing.Oil reservoir utilizes its surface tension to realize oil sealing simultaneously.The gas mixture of discharging, separate by the oil-gas separating plate that directly is fixed on the spring seat, such structure makes vacuum pump after long-time the use, eliminated because of the exhaust valve plate restoring force and lost efficacy, when being blocked by oil reservoir between the faying surface of spool and counterbore bottom, oil reservoir also can guarantee the sealing of outlet valve.
The utility model organically combines both modes and adds oil-gas separating plate in conjunction with exhaust plug and oil sealing dual mode, has simple in structure, reliable operation, good sealing effect, the characteristics of good oil gas separation effect.
Description of drawings
Below in conjunction with accompanying drawing and example the utility model is further specified.
Fig. 1 perspective view of the present utility model
Embodiment
As shown in Figure 1, a kind of improvement structure of vacuum pump venting gas appliance comprises a stator (1) and outlet valve (2 to 6), oil-gas separating plate (7).The top of stator (1) is provided with the bottom that a counterbore b, air outlet a are positioned at counterbore b.Exhaust plug (2) is contained in the counterbore b, exhaust spring (3) lower end inner hole sleeve is on the directional post on spool (2) top, exhaust spring (3) upper end inner hole sleeve is on the directional post of spring seat (4), after the location lug d of spring seat (4) is inserted in the positioning hole c of stator (1), be fixed on the end face of stator (1) with fixing bolt (6), oil-gas separating plate (7) is fixed on the hole f of spring seat (4) with fixing bolt (9).The oil of taking out of with pressurized gas during work remains at and forms an oil reservoir in the counterbore, and its exhaust plug in conjunction with outlet valve (2) is realized double seal.
Claims (2)
1. the improvement structure of a vacuum pump venting gas appliance, comprise a stator and outlet valve and oil-gas separating plate, it is characterized in that: the top vent ports of described stator is provided with a round sealed counterbore, and the air outlet is positioned at the counterbore bottom, and an outlet valve and oil-gas separating plate are set on it.
2. the improvement structure of a kind of vacuum pump venting gas appliance as claimed in claim 1 is characterized in that: described outlet valve comprises the exhaust plug that stack is set together; Exhaust valve spring: spring seat and oil-gas separating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205706333U CN201891609U (en) | 2010-10-11 | 2010-10-11 | Improved structure of vacuum pump exhaust device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205706333U CN201891609U (en) | 2010-10-11 | 2010-10-11 | Improved structure of vacuum pump exhaust device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201891609U true CN201891609U (en) | 2011-07-06 |
Family
ID=44221084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205706333U Expired - Lifetime CN201891609U (en) | 2010-10-11 | 2010-10-11 | Improved structure of vacuum pump exhaust device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201891609U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104204533A (en) * | 2012-03-22 | 2014-12-10 | 厄利孔莱博尔德真空技术有限责任公司 | Vacuum-type rotary slide pump |
-
2010
- 2010-10-11 CN CN2010205706333U patent/CN201891609U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104204533A (en) * | 2012-03-22 | 2014-12-10 | 厄利孔莱博尔德真空技术有限责任公司 | Vacuum-type rotary slide pump |
| CN104204533B (en) * | 2012-03-22 | 2017-03-08 | 莱宝有限责任公司 | Rotary-vane vaccum pump |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |