CN209083506U - A kind of anti-oil return sealing structure of vacuum pump - Google Patents
A kind of anti-oil return sealing structure of vacuum pump Download PDFInfo
- Publication number
- CN209083506U CN209083506U CN201821917962.3U CN201821917962U CN209083506U CN 209083506 U CN209083506 U CN 209083506U CN 201821917962 U CN201821917962 U CN 201821917962U CN 209083506 U CN209083506 U CN 209083506U
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- air inlet
- vacuum pump
- linkage
- room
- connect
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Abstract
The utility model discloses a kind of anti-oil return sealing structures of vacuum pump, are related to vacuum pump technology field.The utility model includes linkage room, and linkage room both ends are connect with pumping hole and air inlet respectively, and linkage room week side is connect with gas chamber mouth；Linkage room both ends are provided with ring barrier sheet, interlocking bar is fixed in annular barrier sheet, interlocking bar both ends are provided with sealing-plug, interlocking bar week, side was provided with two baffles, baffle setting is indoor in linkage, it is provided with spring between pumping hole one end baffle and annular barrier sheet, air inlet one end is provided with filter cartridge and strainer.The utility model is by increasing air inlet on the anti-oil-returning structure of tradition, after so that vacuum pump is stopped working, container can be from ambient inlet air, container air pressure inside and the external world is set to maintain an equal level, prevent vacuum pump oil return, according to the difference of working environment, seal can be arranged in air inlet makes container continue to keep vacuum state, or inputs different gas from air inlet to meet the needs of container is to gas with various.
Description
Technical field
The utility model belongs to vacuum pump technology field, more particularly to a kind of anti-oil return sealing structure of vacuum pump.
Background technique
Vacuum pump is often needed to use during industrial production and scientific artistic skills to realize some productive experiment environment.Very
For sky pump when stopping working or failure, the air pressure in container is less than ambient pressure, and the lubricating oil in vacuum pump is suppressing strong work
Under, it can penetrate into pipeline and container, cause pipeline and capsule contamination, influence production and experiment progress, reduce working efficiency.
Utility model content
The purpose of this utility model is to provide a kind of anti-oil return sealing structures of vacuum pump, pass through the anti-oil-returning structure of tradition
Upper increase air inlet, after so that vacuum pump is stopped working, container can be such that container air pressure inside holds with the external world from ambient inlet air
It is flat, vacuum pump oil return is prevented, according to the difference of working environment, seal can be arranged in air inlet makes container continue to keep vacuum
State, or different gas is inputted from air inlet to meet the needs of container is to gas with various.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
The utility model is a kind of anti-oil return sealing structure of vacuum pump, including linkage room, and the linkage room is circular ring type
Structure, described linkage room one end are connect with pumping hole, and the linkage room other end is connect with air inlet；The linkage room week, side set
It is equipped with gas chamber mouth；The linkage room both ends are provided with annular barrier sheet；Circular opening is provided among the annular barrier sheet；
Interlocking bar is fixed in the circular opening；The interlocking bar both ends are provided with sealing-plug, the setting of interlocking bar week side
There are two baffle, the baffle is fixed on linkage interior, and two baffles are separately fixed at linkage room both ends；The pumping hole with
Air inlet one end is provided with fixed ring, and the fixed ring matches to form annular groove with linkage room；It is fixed in the annular groove
There is sealing ring, the sealing ring is matched with sealing-plug；The linkage room is connect in one end with pumping hole is provided with spring, the bullet
Spring is connect with baffle；Described air inlet one end is connect with strainer, and one surface of strainer is connect with filter cartridge.
Further, the pumping hole and gas chamber mouth are provided with ring flange.
Further, the strainer further includes fixed lid, and the fixed lid is provided with internal screw thread, and the air inlet is provided with
External screw thread, the fixed lid are matched with air inlet.
Further, the filler in the filter cartridge includes silica gel or active carbon or fine sand or white lime.
The utility model has the following beneficial effects:
The utility model is by increasing air inlet on the anti-oil-returning structure of tradition, and after so that vacuum pump is stopped working, container can
From ambient inlet air, so that container air pressure inside and the external world is maintained an equal level, prevent vacuum pump oil return, it, can according to the difference of working environment
To make container continue to keep vacuum state in air inlet setting seal, or different gas is inputted to meet container from air inlet
Demand to gas with various.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of anti-oil return sealed structural schematic diagram of vacuum pump；
Fig. 2 is a kind of anti-oil return sealing structure top view of vacuum pump；
Fig. 3 is a kind of anti-oil return sealing structure main view of vacuum pump；
Fig. 4 is a kind of anti-oil return sealing structure side view of vacuum pump；
Fig. 5 is A-A the schematic diagram of the section structure in Fig. 4.
In attached drawing, parts list represented by the reference numerals are as follows:
1- pumping hole, 2- gas chamber mouth, 3- air inlet, 4- interlocking bar, 5- baffle, 6- fixed ring, 7- sealing ring, 8- sealing-plug,
9- spring, 10- strainer, 11- filter cartridge, 12- linkage room.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " aperture ", " end ", " in ", "outside", "inner", " four
Indicating positions or the positional relationships such as week ", are merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified component or element must have a particular orientation, and be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
Embodiment one:
It please referring to shown in Fig. 1-5, the utility model is a kind of anti-oil return sealing structure of vacuum pump, including room 12 of linking,
Linkage room 12 is circular ring type structure, and linkage 12 one end of room is connect with pumping hole 1, and linkage 12 other end of room is connect with air inlet 3；Linkage
The 12 weeks sides in room are provided with gas chamber mouth 2；Linkage 12 both ends of room are provided with annular barrier sheet；Circle is provided among annular barrier sheet
Shape aperture；Interlocking bar 4 is fixed in circular opening；4 both ends of interlocking bar are provided with sealing-plug 8, and 4 weeks sides of interlocking bar are provided with
Two baffles 5, baffle 5 are fixed in linkage room 12, and two baffles 5 are separately fixed at linkage 12 both ends of room；Pumping hole 1 and air inlet
2 one end are provided with fixed ring 6, and fixed ring 6 matches to form annular groove with linkage room 12；Sealing ring 7 is fixed in annular groove,
Sealing ring 7 is matched with sealing-plug 8；Linkage room 12 is connect in one end with pumping hole 1 is provided with spring 9, and spring 9 is connect with baffle 5；
3 one end of air inlet is connect with strainer 10, and 10 1 surface of strainer is connect with filter cartridge 11.
Preferably, pumping hole 1 and gas chamber mouth 2 are provided with ring flange.
Preferably, strainer 10 further includes fixed lid, and fixed lid is provided with internal screw thread, and air inlet 3 is provided with external screw thread, fixed
Lid is matched with air inlet 3.
Preferably, the filler in filter cartridge 11 includes silica gel or active carbon or fine sand or white lime.
Embodiment two:
It please refers to shown in Fig. 5, a kind of my anti-oil return sealing structure of vacuum pump of the utility model, its working principle is that: pump
Mouth 1 is controlled to a vacuum pump, and gas chamber mouth 2 is connect with container to be arranged；When vacuum pump work, under the influence of air pressure, interlocking bar 4 to
1 direction of pumping hole is mobile, at this point, pumping hole 1 is opened, air inlet 3 is closed, and spring 9 is compressed, when vacuum pump stops working, linkage
Bar 4 is mobile to air inlet 3 under the action of spring 9 and air pressure, at this point, pumping hole 1 is closed, air inlet 3 is opened, and the relaxation of spring 9 is empty
Gas after strainer 10 and filter cartridge 11 by entering wait arrange in container.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (4)
1. a kind of anti-oil return sealing structure of vacuum pump, including linkage room (12), it is characterised in that: the linkage room (12) is circle
Ring type structure, the linkage room (12) one end are connect with pumping hole (1), and the linkage room (12) other end is connect with air inlet (3)；
The all sides of the linkage room (12) are provided with gas chamber mouth (2)；Linkage room (12) both ends are provided with annular barrier sheet；It is described
Circular opening is provided among annular barrier sheet；Interlocking bar (4) are fixed in the circular opening；Interlocking bar (4) both ends
It is provided with sealing-plug (8), all sides of the interlocking bar (4) are provided with two baffles (5), and the baffle (5) is fixed on linkage
In room (12), two baffles (5) are separately fixed at linkage room (12) both ends；The pumping hole (1) and air inlet (3) one end are equal
It is provided with fixed ring (6), the fixed ring (6) matches to form annular groove with linkage room (12)；It is fixed in the annular groove
Sealing ring (7), the sealing ring (7) match with sealing-plug (8)；The linkage room (12) connect in one end with pumping hole (1) to be set
It is equipped with spring (9), the spring (9) connect with baffle (5)；Described air inlet (3) one end is connect with strainer (10), the strainer
(10) one surfaces are connect with filter cartridge (11).
2. a kind of anti-oil return sealing structure of vacuum pump according to claim 1, which is characterized in that the pumping hole (1) with
Gas chamber mouth (2) is provided with ring flange.
3. a kind of anti-oil return sealing structure of vacuum pump according to claim 1, which is characterized in that the strainer (10) is also
It is covered including fixed, the fixed lid is provided with internal screw thread, and the air inlet (3) is provided with external screw thread, the fixed lid and air inlet
Mouth (3) matches.
4. a kind of anti-oil return sealing structure of vacuum pump according to claim 1, which is characterized in that the filter cartridge (11)
Interior filler includes silica gel or active carbon or fine sand or white lime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917962.3U CN209083506U (en) | 2018-11-21 | 2018-11-21 | A kind of anti-oil return sealing structure of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821917962.3U CN209083506U (en) | 2018-11-21 | 2018-11-21 | A kind of anti-oil return sealing structure of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209083506U true CN209083506U (en) | 2019-07-09 |
Family
ID=67124931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821917962.3U Expired - Fee Related CN209083506U (en) | 2018-11-21 | 2018-11-21 | A kind of anti-oil return sealing structure of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209083506U (en) |
-
2018
- 2018-11-21 CN CN201821917962.3U patent/CN209083506U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20211121 |